Los ntawm ib txwm tshwm sim magnesium hydroxide (Mg (OH) ₂), Brucite hmoovyog ib qho kev ua haujlwm siab -kev ua tau zoo, halogen- cov nplaim hluav taws tua hluav taws. Nws txoj hauj lwm tseem ceeb yog ua kom tawg ntawm qhov kub thiab txias siv endothermic breakdown, uas tso tawm cov dej vapor uas dilutes flammable gases thiab tsim ib daim ntaub thaiv ntawm qhov chaw los tiv thaiv lawv. Cov ntxhia no-raws li additive ua tau raws li cov qauv kev nyab xeeb ntawm hluav taws tseem ceeb hauv cov xov hlau, cov vaj huam sib luag, thiab cov khoom siv yas. Nws muab cov neeg tsim khoom pheej yig dua rau cov hluav taws xob hluavtaws uas tseem ua tau raws li kev cai nruj ib puag ncig hauv kev lag luam thoob ntiaj teb.
Nkag siab txog Brucite Powder thiab nws cov nplaim hluav taws kub nyhiab
Chemical Composition thiab Physical Characteristics
Magnesium hydroxide (Mg(OH)₂) ib txwm tshwm sim raws li Brucite hmoov, uas yog hauv av, muaj- daim ntawv qib. Cov ntxhia yog cov tshuaj formula Mg(OH)₂ thiab yog cov hmoov dawb zoo. Nws lub cev zoo cuam tshuam li cas nws tuaj yeem siv hauv kev lag luam. Nrog rau qib Mohs hardness ntawm 2.5, cov pob zeb no tsis yog ntxhib li silica lossis talc, uas txhais tau tias nws tsis hnav cov cuab yeej sai sai thaum ua haujlwm. Cov khoom muaj qhov ntom ntawm 2.39 g / cm³, thiab thaum sib xyaw nrog dej, nws cov alkaline xwm muab nws pH ntau ntawm 8-10.
Thaum saib cov nplaim hluav taws retardants, cov qauv zoo yog qhov tseem ceeb heev. Cov hom hwm, zoo li Brucite Powder BP-65, muaj ntau dua 96% whiteness thiab 65% MgO cov ntsiab lus sib npaug, uas txhais tau tias lawv tsis hloov xim ntawm cov khoom kawg ntau. Qhov loj me me feem ntau yog nyob nruab nrab ntawm 3 thiab 20μm D50, thiab nws tau ua tib zoo saib xyuas kom paub tseeb tias cov khoom sib kis tau sib npaug hauv cov ntaub ntawv polymer. Cov dej theem qis qis dua 0.5%, uas ua rau cov teeb meem ua haujlwm tsis tshwm sim thaum lub sij hawm extrusion lossis compounding. Poob ntawm qhov hluav taws kub qhov tseem ceeb ntawm li 31% qhia qhov siab tshaj plaws nplaim hluav taws xob muaj peev xwm uas tuaj yeem tau txais los ntawm thermal tawg.
Thermal Decomposition Mechanism
Magnesium hydroxide (Mg (OH) ₂) yog qhov zoo ntawm kev tua hluav taws vim tias nws coj kwv yees thaum rhuab mus rau qhov kub thiab txias. Thaum cov khoom kub siab tshaj 340 degree, nws tawg los ntawm endothermic breakdown, noj nyob rau hauv ib tug ntau ntawm tshav kub los ntawm nws ib puag ncig. Cov txheej txheem no hloov magnesium hydroxide (Mg (OH) ₂) rau hauv magnesium oxide thaum muab dej vapor uas yog kwv yees li 31% ntawm qhov hnyav qub.
Cov dej vapor uas tso tawm thaum hlawv ua haujlwm ntau tshaj ib lub hom phiaj tiv thaiv. Nws txo qis kom muaj nuj nqis ntawm cov pa hauv thaj chaw combustion, uas ua rau qeeb qhov kis ntawm lub txim. Vim hais tias nws yog endothermic, cov tshuaj tiv thaiv nws tus kheej yuav siv sij hawm nyob rau hauv tshav kub, uas ua rau lub sab saum toj ntawm cov khoom thiab ncua ignition. Cov magnesium oxide uas tshuav dhau los ua rau cov txheej txheem thermally ruaj khov uas ntxiv rau kev tiv thaiv thiab ua kom cov khoom hauv qab no tsis txhob tawg ntau dua.
Qhov kub no rau kev tawg yog tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov txheej txheem kev lag luam uas xav tau qhov kub ntawm qhov rais dav dua. Nyob rau hauv sib piv rau txhuas trihydrate (ATH), uas tawg nyob ib ncig ntawm 200℃thiab tso dej, magnesium hydroxide -raws li tshuaj yuav siv tau nrog industrial plastics uas yog rhuab mus rau nruab nrab ntawm 250℃thiab 320℃tsis tawg sai heev.
Txoj kev tsim khoom thiab kev hloov pauv zoo
Muaj ob txoj hauv kev tseem ceeb uas magnesium hydroxide (Mg (OH) ₂), uas yog siv rau hauv cov nplaim hluav taws, tuaj yeem ua tau. Mineral-raws li kev tsim khoom pib nrog cov pob zeb brucite uas pom ib txwm muaj. Tom qab ntawd nws yuav dhau los ntawm cov txheej txheem ntawm cov txiaj ntsig, kev sib tsoo, thiab kev hloov ntawm qhov chaw. Txoj kev no siv pob zeb reserves uas ib txwm ntshiab dua, tab sis zoo nyob ntawm ntau npaum li cas ruaj khov thiab zoo ib yam ntawm cov ore qhov chaw.
Hauv cov txheej txheem tshuaj synthesis, magnesium hydroxide (Mg (OH) ₂) yog precipitated los ntawm brine daws. Qhov no ua rau cov kws tshawb fawb tswj xyuas qhov zoo thiab qhov loj ntawm kev faib tawm ntawm cov khoom. Cov thev naus laus zis tshiab tau ua rau nws ua tau los ua cov ntawv hexagonal thiab cov khoom me me nrog D50 qhov tseem ceeb hauv qab 2μm. Cov no tau txhim kho li cas cov khoom sib kis thiab lawv koom nrog lwm cov khoom hauv cov khoom siv polymer.
Txawm li cas los xij ntawm kev tsim khoom tau siv, kev ntxuav saum npoo yog qhov tseem ceeb kawg kauj ruam. Siv silane coupling agents los yog stearic acid coats ntawm particle nto hloov lawv kom lawv ua hauj lwm zoo dua nrog polymer matrices uas tsis nyiam dej, xws li polyethylene los yog polypropylene. Cov kev hloov pauv no ua rau nws tsis tshua muaj qhov sib txuas ua ke thiab txhim kho cov cuab yeej zoo ntawm cov ntawv sau ntau heev.
Kev Ntsuas Sib Piv: Brucite Powder vs Lwm Cov Hluav Taws Xob Retardants
Kev ua tau zoo tiv thaiv Aluminium Trihydrate
Yav dhau los, txhuas trihydrate (ATH) yog cov ntxhia pob zeb nrov tshaj plaws hauv kev lag luam polymer, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas tus nqi tseem ceeb tshaj qhov ua tau zoo. Cov txheej txheem endothermic zoo sib xws ua rau ATH tawg ntawm li 200 degree, tso dej vapor. Tab sis vim tias nws tawg ntawm qhov kub qis dua, nws tsis tuaj yeem siv rau hauv cov khoom siv thermoplastics uas yuav tsum tau ua tiav ntawm qhov kub siab tshaj 220 degree.
Qhov teeb meem no nrog cov txheej txheem thermal tam sim ntawd kho los ntawmBrucite hmoov. Lub qhov rais ua haujlwm ntev dua tso cai rau cov neeg tsim khoom siv hluav taws xob uas siv cov khoom siv polyolefin siv cov khoom siv nrawm dua yam tsis muaj cov khoom sib xyaw ua kom nrawm dhau. Qhov zoo ntawm qhov kub ntawm 140℃ua rau muaj kev sib raug zoo ntawm cov khoom siv nyob rau ntau dua - pab pawg polymer ua tau zoo thiab ntau lawm ntau lawm.
Lwm qhov yuav tsum tau xav txog thaum xaiv cov ntaub ntawv yog qhov chaw thau khoom. Txhawm rau kom tau txais cov qhab nia nplaim hluav taws xob uas koj xav tau, ob qho tib si cov zaub mov feem ntau yuav tsum tau ntxiv ntawm tus nqi ntawm 50 txog 65% los ntawm qhov hnyav. Thaum thauj khoom ntawm tib tus nqi, magnesium hydroxide (Mg(OH)₂) qhia tau hais tias cov pa luam yeeb zoo dua li ATH- cov ntaub ntawv ntim, ua kom tsawg dua 50% cov pa luam yeeb tsawg dua thaum kuaj kev sib tsoo.
Advantages Over Synthetic Flame Retardant Chemicals
Halogenated nplaim retardants, xws li brominated thiab chlorinated chemicals, ua hauj lwm zoo nyob rau hauv qis loading theem, feem ntau ntawm 5 thiab 15% los ntawm qhov hnyav. Qhov txiaj ntsig kev ua tau zoo no muaj tsawg dua qhov cuam tshuam rau cov khoom siv kho tshuab thiab ua kom cov haujlwm ua haujlwm zoo ib yam. Tab sis thaum cov tshuaj ntxiv no raug hlawv, lawv muab cov pa phem uas muaj hydrogen halides thiab tej zaum txawm tias dioxins.
Halogenated nplaim retardants tau dhau los ua nyuaj rau siv hauv Tebchaws Europe thiab North America vim tias lawv muaj kev phom sij rau ib puag ncig thiab nyob hauv ib puag ncig ntev. RoHS cov lus qhia thiab REACH cov cai hauv European Union tau txwv nruj rau qee cov tshuaj brominated. Ntau lub xeev txoj cai lij choj hauv Tebchaws Meskas muaj cov kev txwv zoo sib xws, tshwj xeeb tshaj yog thaum hais txog kev siv tshuab thiab cov khoom siv hauv tsev.
Mineral-raws li kev xaiv tau tshem tawm tag nrho cov kev txhawj xeeb no txog kev ua qias tuaj. Thaum magnesium hydroxide (Mg (OH) ₂) tawg, nws tsuas yog tawm hauv qab dej vapor thiab magnesium oxide, uas muaj kev nyab xeeb rau ib puag ncig. Kev xaiv cov khoom siv yog raws li cov neeg muaj kev nyab xeeb nyob rau hauv cov chaw nruj xws li subways, cov chaw khaws ntaub ntawv, thiab cov tsev siab - nce siab thaum hluav taws kub. Qhov no huv si decomposition profile yog tshwj xeeb tshaj yog pab tau nyob rau hauv cov chaw no.
Tus nqi -Kev txiav txim siab ua haujlwm piv rau Synthetic Magnesium Hydroxide
Hauv ob peb lub xyoo dhau los, kev tsim tshuaj lom neeg rau kev ua magnesium hydroxide (Mg(OH)₂) tau zoo dua. Thaum piv rau cov ntxhia-raws li kev xaiv, cov khoom precipitated tej zaum yuav muaj cov purity zoo dua thiab tswj ntau particle morphology. Txawm li cas los xij, cov txiaj ntsig kev tsim khoom no tuaj ntawm tus nqi siab, qee zaum 40-60% ntau dua li cov ntxhia-raws li lwm yam.
Thaum cov neeg ua haujlwm muag khoom saib tag nrho cov nqi ntawm cov tswv cuab, lawv yuav tsum xav txog ob qho tib si tus nqi ntawm cov khoom siv raw thiab lawv yuav tsum ua haujlwm zoo npaum li cas. Rau kev siv uas xav tau cov khoom me me (tsawg dua 2μm) lossis cov duab hexagonal tshwj xeeb, cov qib hluavtaws yuav tsim nyog tus nqi ntxiv. Mineral-raws li cov ntaub ntawv uas tau kho kom zoo thiab siv ntau ntau tuaj yeem muab kev ua tau zoo txaus hauv cov xaim los yog cov vaj huam sib luag sib xyaw, nrog cov nqi qis dua.
Lwm qhov ntawm qhov zoo sib xws yog cov saw hlau ruaj khov. Mineral-raws li kev tsim khoom yog nyob ntawm cov peev txheej geological uas feem ntau pom muaj nyob hauv qee thaj chaw mining. Kev ua haujlwm tshuaj lom neeg muaj teeb meem sib txawv, tshwj xeeb tshaj yog thaum nws los txog rau magnesium ntsev feedstocks thiab cov txheej txheem nag lossis daus uas siv ntau lub zog. Thaum cov neeg yuav khoom txhawj xeeb txog kev sib txawv, lawv feem ntau khaws cov ntxhia thiab cov khoom siv hluavtaws tsim nyog kom lawv tsis tas yuav cia siab rau ib tus neeg muag khoom xwb.
Kev siv tswv yim thiab txiaj ntsig ntawm Brucite Powder hauv nplaim hluav taws
Tsawg-Smoke Zero-Halogen Cable Systems
Kev lag luam loj tshaj plaws uas siv cov ntxhia magnesium hydroxide (Mg (OH) ₂) nplaim hluav taws kub yog kev lag luam hlau thiab cable. Txhawm rau ua kom tau raws li cov qauv kev nyab xeeb hluav taws, qis- pa taws xoom- halogen (LSZH) hlau qauv siv cov qib siab loading, feem ntau ntawm 55 thiab 65% los ntawm qhov hnyav. Cov txheej txheem tseem ceeb siv cov kab no, xws li cov tsheb ciav hlau thauj mus los, cov tsev lag luam, kev teeb tsa hauv hiav txwv, thiab cov chaw cov ntaub ntawv uas cov pa luam yeeb tuaj yeem ua rau muaj kev phom sij rau tib neeg lub neej.
Nto- hloov kho Brucite hmoov cov khoom sib xyaw nrog polyethylene thiab ethylene- cov ntaub ntawv yas acetate copolymer, ua kom zoo txhua yam zoo txawm tias lawv muaj ntau cov ntxhia hauv lawv. Thaum LSZH cov khoom sib xyaw ua kom raug, lawv ua tau raws li qhov yuav tsum tau ua ntawm cov khoom siv hluav taws xob tsim los ntawm cov qauv xaim thoob ntiaj teb thiab ua tiav UL94 V-0 qib thaum khaws elongation ntawm kev tawg siab tshaj 125%. Vim tias magnesium hydroxide (Mg (OH) ₂) decomposes ntawm qhov kub siab tshaj aluminium trihydrate (ATH), cov kab extrusion tuaj yeem txav tau sai. Qhov no nce kev tsim khoom lag luam los ntawm 20 mus rau 30 feem pua hauv qhov kub thiab txias.
Thaum cov neeg tsim khoom siv hluav taws xob saib cov nplaim hluav taws xob xaiv, lawv ua kom paub tseeb tias qhov zoo ntawm qhov kev kho saum npoo thiab qhov loj me me yog tib yam los ntawm batch mus rau batch. Cov kev hloov pauv hauv cov xwm txheej no muaj kev cuam tshuam ncaj qha rau ntawm rheology ntawm cov khoom sib xyaw, uas ua rau muaj kev cuam tshuam li cas cov tuag swells, ua tiav ntawm qhov chaw, thiab kev tswj hwm lub cev kam rau lub sijhawm extrusion. Cov chaw ntseeg tau khaws qhov tshwj xeeb qhov rais me me, uas pab ua kom cov txiaj ntsig tau zoo sib xws thoob plaws ntau qhov kev khiav haujlwm.
Aluminium Composite Vaj Huam Sib Luag Core Materials
Mineral nplaim taws retardants tau siv ntau thiab ntau dua nyob rau hauv architectural npog systems kom tau raws li qhov hluav taws kub kev nyab xeeb kev xav tau los ntawm lub tsev lis dej num. Aluminium composite panels (ACP) muaj cov txheej txheem yas uas muaj magnesium hydroxide (Mg (OH) ₂). Qhov no pab lawv tau txais kev ntsuas hluav taws kub ntawm A2 lossis B1 raws li European EN 13501-1 tus qauv. Cov qhab nias no tsis ntes hluav taws lossis tsuas yog ib feem ntawm qhov hluav taws kub yog qhov tseem ceeb heev rau cov phiaj xwm hauv tsev siab uas hluav taws kub hnyiab los ntawm phab ntsa tuaj yeem ua rau muaj kev phom sij heev.
Cov khoom siv tseem ceeb sib xyaw muaj magnesium hydroxide (Mg (OH) ₂) ntawm qhov chaw thau khoom ze li 50-55%. Qhov no yog sib npaug nrog kev ua kom lub zog tev ntawm cov tawv nqaij aluminium thiab cov tub ntxhais polymer ntawm qib zoo. Rau qhov kev siv no, nplaim taws- cov khoom siv hluav taws xob yuav tsum muaj peev xwm muaj sia nyob ntawm qhov kub ntawm 220 thiab 240℃yam tsis tau tawg sai heev. Cov magnesium hydroxide qib thermal stability ua haujlwm nrog cov kev ua haujlwm no thiab muab cov ntsiab lus ntxhia uas xav tau rau kev ntsuas hluav taws kub.
Cov neeg tsim vaj huam sib luag yuav tsum ua raws li cov cai tswj xyuas kom zoo vim tias tsoomfwv tsis ntev los no tau saib xyuas tom qab siab - hluav taws kub hauv tsev. Qhov sib xws ntawm cov nplaim hluav taws tsis zoo cuam tshuam tsis yog tsuas yog cov txiaj ntsig ntawm kev ntsuas hluav taws tab sis kuj yog cov khoom siv hluav taws xob zoo ntawm lub vaj huam sib luag, xws li nws lub peev xwm los khoov thiab tiv taus siab. Cov tswv yim rau kev yuav khoom muab ntau qhov hnyav ntawm cov kev txawj ntse ntawm cov neeg muag khoom, zoo li lub peev xwm los hloov qhov chaw ntawm cov khoom thiab muaj kev tswj xyuas zoo uas ua kom txhua qhov kev txiav txim loj ua tau raws li cov lus qhia tshwj xeeb.
Engineering Plastic Compounds
Automotive thiab thev naus laus zis kev lag luam tab tom thov rau halogen-cov hluav taws xob tiv thaiv hluav taws xob hauv cov khoom siv polymer ntau thiab ntau dua. Engineering thermoplastics, xws li polypropylene, polyamide, thiab ABS, muaj magnesium hydroxide (Mg (OH) ₂) kom ua tau raws li cov qauv kev nyab xeeb hluav taws xws li UL94 lossis FMVSS 302 cov cai rau tsheb sab hauv hlawv tus nqi. Rau cov kev siv no, nplaim taws retardancy, mechanical kev ua tau zoo, thiab kev ua haujlwm yuav tsum tau ua tib zoo sib npaug.
Vim tias txhuas trihydrate (ATH) decomposes ntawm qhov kub thiab txias, magnesium hydroxide (Mg (OH) ₂) ua rau cov nplaim hluav taws kub hnyiab tau nyob rau hauv cov tsev neeg polymer uas qhov kub thiab txias yog txwv. Thaum cov qib magnesium hydroxide tau ua kom zoo, cov tshuaj polyamide ua tiav ntawm 280-300℃qhia cov viscosity ruaj khov. Qhov no txhais tau hais tias cov teeb meem tsim roj uas tshwm sim hauv ATH- cov tshuab ua kom puv ntawm cov ntsuas kub no raug zam. Qhov kawg tshwm sim yog txhaj tshuaj- molded qhov chaw uas ua tau raws li V-0 cov qauv thiab ua kom lawv cov kev cuam tshuam lub zog thiab ruaj khov ntawm qhov loj.
Cov thev naus laus zis siv rau kev ntxuav saum npoo muaj qhov cuam tshuam loj npaum li cas cov txheej txheem nyuaj ua haujlwm. Silane coupling agents tsim cov tshuaj sib txuas ntawm qhov chaw ntawm cov khoom siv hlau thiab cov chains ntawm cov organic polymers. Qhov no ua rau kev ntxhov siab hloov pauv tau zoo dua thiab txo qis qhov tsis zoo ntawm cov pob zeb hauv av siab ntawm cov khoom siv kho tshuab. Txhawm rau kom paub tseeb tias cov khoom ua tiav ib txwm ua haujlwm zoo ib yam, kev yuav khoom yuav tsum tau hais meej meej tias yuav kho qhov chaw thiab yuav ua li cas los xyuas qhov zoo ntawm cov ntaub ntawv.
Kev Qhia Txog Kev Muag Khoom rau Brucite Powder: Dab tsi B2B Cov Neeg Yuav Yuav Tsum Paub
Kev Ntsuam Xyuas Tus Neeg Siv Khoom
Muaj ntau dua los xaiv qhov twg kom tau txais cov nplaim hluav taws kub hnyiab dua li kev sib piv cov nqi. Ore qhov chaw ruaj khov thiab cov khoom lag luam yog qhov tseem ceeb tshaj plaws ntawm tus neeg muab kev pabcuam. Qhov no yog qhov teeb tsa ntev - cov neeg koom tes sib nrug los ntawm cov tub lag luam luv luv. Cov neeg muab khoom lag luam uas khiav lawv tus kheej mines thiab tau sau cov ntaub ntawv khaws cia muaj kev ruaj ntseg ntau dua li cov neeg lag luam nruab nrab uas suav nrog kev yuav ntawm lub khw muag khoom. Yuav kom paub tseeb tias qhov chaw muaj kev ntseeg siab npaum li cas, pawg neeg yuav khoom yuav tsum nug ntau cov ntaub ntawv hais txog geological stockpiles, mining lais xees, thiab muaj peev xwm ntau lawm.
Brucite hmoov Cov chaw muab kev pabcuam raug cais los ntawm cov tub lag luam yooj yim los ntawm lawv cov kev txawj ntse. Cov cuab yeej ua haujlwm nyuaj muaj qhov cuam tshuam ncaj qha rau cov khoom sib xws, tshwj xeeb tshaj yog thaum nws los txog rau kev tswj cov particle loj thiab xyuas kom meej tias cov kev hloov kho saum npoo tau ua tus sib npaug. Cov neeg muag khoom uas yuav cov cuab yeej siv dav hlau sib tsoo, cov txheej txheej saum npoo av, thiab cov tshuab tswj tsis siv neeg zoo qhia tau tias lawv mob siab rau kev ua raws li qhov yuav tsum tau ua. Kev mus ntsib lossis kuaj xyuas los ntawm tus neeg thib peb tuaj yeem lees paub tias lub tuam txhab muaj kev txawj ntse uas lawv hais tias lawv ua. Qhov no txo qis qhov kev pom zoo txaus ntshai rau cov neeg yuav khoom uas tab tom nrhiav pib kev sib raug zoo ntawm cov khoom siv tshiab.
Kev tswj hwm kev ua tau zoo uas ua raws li cov qauv thoob ntiaj teb yog lwm qhov cim ntawm kev ntseeg siab. ISO 9001 daim ntawv pov thawj qhia tau hais tias cov kev tswj hwm zoo tau muab tso rau hauv qhov chaw, thiab ISO 14001 ntawv pov thawj qhia tias kev tswj hwm ib puag ncig yog qhov tseem ceeb. Rau kev xa tawm mus rau European lag luam, REACH ua raws li cov ntaub ntawv tseem ceeb heev. Cov neeg muab khoom yuav tsum khaws cov ntaub ntawv Kev Nyab Xeeb thiab cov lej sau npe mus txog rau txhua qib uas tsim nyog. Txhawm rau kom tsis txhob muaj teeb meem nrog kev lis kev cai, Asmeskas cov neeg yuav khoom yuav tsum xyuas kom meej tias cov khoom lawv xav yuav ua tau raws li cov qauv teev tseg los ntawm TSCA.
Key Specification Parameters thiab Test Methods
Cov qauv txheej txheem yuav tsum suav nrog ntau yam uas cuam tshuam rau cov nplaim hluav taws xob ua haujlwm zoo li cas thiab lawv tuaj yeem ua tau yooj yim npaum li cas. Qhov tseem ceeb tshaj plaws kev vam meej yog particle loj tis, uas feem ntau yog qhia los ntawm kev ntsuas ntawm D50 (qhov nruab nrab particle loj), D97 (sab saum toj txiav), thiab cov cheeb tsam tshwj xeeb. Thaum koj xav tau qhov zoo tshaj plaws dispersion, D50 qhov tseem ceeb ntawm 1.5 thiab 5μm yog qhov zoo tshaj plaws. Tab sis rau kev siv tsawg dua, kev txwv cov cuab yeej siv thiab cov nqi yuav txhais tau tias xav tau kev faib khoom sib txawv.
Chemical clarity muaj qhov cuam tshuam ncaj qha rau ob qho tib si qhov hluav taws xob tua hluav taws ua haujlwm zoo npaum li cas thiab txhua yam kev mob tshwm sim uas yuav tshwm sim thaum ua haujlwm. Tus nqi ntawm magnesium oxide (MgO) hauv ib yam khoom yog ib txoj hauv kev los ntsuas nws lub peev xwm los tiv thaiv hluav taws. Cov qhab nia zoo feem ntau teev 63–65% MgO sib npaug. Calcium oxide residues yuav tsum nyob qis dua 1.5% kom tsis txhob muaj teeb meem pH uas tsis xav tau thiab tuaj yeem rhuav tshem qee hom polymers dhau sijhawm. Cov feem pua ntawm cov hlau txwv ua kom cov qib whiteness ruaj khov, uas yog qhov tseem ceeb tshwj xeeb tshaj yog thaum cov hluav taws kub retardant chemicals yuav tsum tau meej los yog muaj xim lub teeb.
Txhawm rau ua kom lub ntsej muag kho kom zoo, koj yuav tsum siv qee txoj kev tshawb fawb. Hydrophobicity thiab polymer compatibility yog cuam tshuam los ntawm cov feem pua ntawm cov npog, uas feem ntau yog nruab nrab ntawm 1% thiab 2.5% los ntawm qhov hnyav ntawm stearic acid los yog silane agents. Kev ntsuam xyuas dej yooj yim tso cai rau koj pom sai npaum li cas qhov kev kho saum npoo ua haujlwm hauv thaj teb. Ntau txoj hauv kev zoo tshaj, xws li X-ray photoelectron spectroscopy, muab cov ntaub ntawv ntxiv rau koj txog qhov chaw chemistry rau kev siv tseem ceeb.
Cov qauv nqi thiab cov nqe lus ua lag luam
Tus nqi ntawm magnesium hydroxide (Mg (OH) ₂) nplaim retardants ntawm kev ua lag luam nyob ntawm tus nqi ntawm cov khoom siv raw, cov txheej txheem nyuaj npaum li cas, thiab cov khoom sib tw zoo li cas. Mineral- raws qib feem ntau yog tus nqi ntawm $650 thiab $950 ib metric ton FOB Tuam Tshoj. Tus nqi hloov pauv nyob ntawm qhov loj ntawm cov khoom, theem ntawm kev kho deg, thiab qhov loj ntawm qhov kev txiav txim. Synthetic precipitated qib raug muag rau 40-60% ntau dua li cov qauv ntuj. Qhov no yog vim lawv muaj kev tswj xyuas zoo dua ntawm cov duab thiab qhov ntau thiab tsawg ntawm cov khoom.
Hauv kev lag luam khoom lag luam ntxhia, cov ntawv cog lus ntim muaj qhov cuam tshuam loj rau tus nqi. Thaum cov neeg yuav khoom pom zoo yuav ntau dua 500 metric tons hauv ib xyoos, lawv tuaj yeem tau txais tus nqi txiav ntawm 8-12% piv rau cov ntsiab lus yuav khoom. Ntev-cov khoom lag luam uas kav ntev li ob peb xyoos muab kev ruaj ntseg ntau dua vim tias lawv kaw cov nqi raws li cov khoom lag luam magnesium rau pej xeem, tiv thaiv cov neeg yuav khoom los ntawm luv luv - lub sijhawm hloov pauv kev lag luam.
Cov nqe lus them nqi thiab kev npaj nyiaj txiag kev lag luam sib txawv heev ntawm cov neeg muab khoom. Rau cov neeg siv khoom tsim nyog, cov neeg tsim khoom tsim nrog cov ntawv sib npaug zoo tuaj yeem muab 30 txog 60 hnub them nyiaj. Cov lag luam me, ntawm qhov tod tes, feem ntau xav tau cov ntawv qiv nyiaj lossis tso nyiaj ua ntej. Kev thauj mus los thoob ntiaj teb yog qhov nyuaj dua vim tias feem ntau nws yuav siv sijhawm 25 mus rau 35 hnub rau cov thawv ntim khoom kom tau txais los ntawm cov chaw nres nkoj loj hauv Suav mus rau lub hom phiaj hauv Asmeskas. Thaum cov neeg yuav khoom tab tom nrhiav txoj hauv kev zoo tshaj plaws los yuav cov khoom, lawv yuav tsum sib npaug qhov kev xav tau kev ruaj ntseg nrog tus nqi khaws cov khoom thiab ntau npaum li cas lawv xa khoom.
Quality Assurance thiab Specification Compliance
Los ntawm kev teeb tsa muaj zog inbound zoo tswj txoj hauv kev, cov neeg yuav khoom tuaj yeem zam qhov tshwj xeeb drift thiab batch inconsistencies. Txhua pob yuav tsum tuaj nrog Daim Ntawv Pov Thawj Kev Ntsuam Xyuas cov ntaub ntawv uas teev cov txiaj ntsig kev xeem rau txhua yam tseem ceeb. Cov kev ntsuam xyuas no yuav tsum tau ua tiav siv cov qauv txheej txheem, xws li laser diffraction particle sizing lossis thermogravimetric tsom xam rau kev poob ntawm qhov hluav taws xob pov thawj. Cov neeg yuav khoom uas yog tus saib xyuas cov kev pabcuam zoo yuav tsum suav nrog cov qauv tsis lees paub meej thiab cov sijhawm sim hauv kev cog lus yuav khoom. Txoj kev no, cov neeg yuav khoom tuaj yeem qhia tau yooj yim vim li cas cov khoom lag luam tsis ua raws li cov qauv thaum lawv nyob deb dhau ntawm qhov kev lees paub.
Kev sim ua piv txwv ua ntej tso kev txiav txim loj yog ib txoj hauv kev tseem ceeb los txo qhov kev pheej hmoo ntawm kev pib qhov kev sib raug zoo tshiab. Kev soj ntsuam tag nrho ntawm cov qauv neeg sawv cev yuav tsum tau ua nrog rau kev sim ua hauv tus neeg yuav khoom tsim khoom tiag. Ua ntej pom zoo rau loj - teev kev yuav, lab- ntsuas qhov ntsuas ntawm cov khoom sib txuas qhia tau hais tias muaj teeb meem sib xws, teeb meem kev ua haujlwm, lossis qhov tsis ua haujlwm. Los ntawm kev nqis peev hauv cov txheej txheem kev pom zoo no, uas feem ntau yuav siv sijhawm li ob mus rau peb lub hlis, koj tuaj yeem zam kev tsim khoom qeeb qeeb thiab cov nqi pov tseg uas los ntawm cov neeg muag khoom tsis zoo.
Thaum muaj kev tsis sib haum xeeb lossis cov neeg siv khoom tsis muaj kev txawj ntse los ua lawv tus kheej, qhov thib peb -chaw kuaj sim muaj kev lees paub ywj pheej. Cov chaw soj ntsuam tau lees paub uas paub yuav ua li cas kuaj cov nplaim hluav taws xob tuaj yeem muab cov kev xav tsis ncaj ncees rau kev sib kis ntawm qhov loj me, tshuaj ua kom- nce, thiab thermal tawg zoo. Daim ntawv cog lus rau kev yuav khoom yuav tsum suav nrog txoj hauv kev los daws qhov kev tsis pom zoo uas yog raws li kev pom zoo-raws li kev sim thiab cov qauv kev lees paub. Qhov no yuav ua kom pom tseeb dua thaum muaj lus nug txog seb qhov kev qhia tshwj xeeb puas tau ntsib.
Brucite Powder BP-65: Technical Specifications thiab Industrial Performance
Product Overview thiab Compositional Analysis
Brucite hmoovBP-65 yog cov khoom siv hluav taws xob ua kom zoo dua qub uas tau tsim los rau kev siv tawv tawv uas xav tau kev tiv thaiv hluav taws thiab ruaj khov thaum ua haujlwm. Cov khoom no los ntawm ntuj brucite ore qhov chaw uas ntshiab heev. Nws tau raug tswj los ntawm kev tswj milling thiab sorting kom tau cov khoom nrog tib yam khoom. Lub npe tshawb fawb rau nws tseem yog magnesium hydroxide (CAS No . 1309-42-8), thiab nws cov khoom siv hluav taws xob yog raws li nws cov ntsiab lus sib npaug ntawm 65% magnesium oxide, uas yog qhia los ntawm lub npe BP-65.
Yuav kom tau txais cov hmoov dawb zoo, kev xaiv pob zeb nruj thiab ua cov kauj ruam yog siv los tshem tawm ntau cov hlau thiab manganese impurities li sai tau. Tus nqi dawb ntawm tsawg kawg yog 96% cia nws siv rau hauv cov ntawv thov polymer uas muaj xim me ntsis lossis pom - dhau, qhov kev xav tau kev nyab xeeb hluav taws tau ntsib los ntawm kev txhawj xeeb zoo nkauj. Cov khoom khaws cia nws cov dej noo tsawg heev ntawm tsis pub ntau tshaj 0.5%, uas nres chav - cuam tshuam cov teeb meem porosity thaum lub sij hawm siab - cov txheej txheem polymer.
Particle engineering tsim kom muaj kev tswj xyuas qhov loj me kom zoo ntawm 3-20μm D50, uas yog qhov zoo tshaj plaws rau kev faib khoom thiab khaws cov khoom siv ntawm cov khoom siv polymer. Qhov ntau ntawm qhov loj me no zam cov teeb meem kev ua haujlwm uas tuaj nrog ultra- cov khoom zoo thaum tseem muaj qhov chaw txaus los tiv thaiv cov nplaim taws. Txoj kev sib kis ncaj nraim txiav rau ob qhov loj me uas ua rau cov khoom puas thiab cov khoom me me uas ua rau cov khoom siv plua plav ntau dua.
Kev ua tau zoo hauv cov khoom siv polymer
Thaum koj muab 2.5 Mohs hardness nrog qhov loj me me, koj tau txais txiaj ntsig ntsuas ntawm cov khoom siv lub neej thaum lub sij hawm tsim khoom. Piv nrog rau cov khoom siv tawv tawv xws li calcium carbonate lossis talc, cov khoom siv no ua rau lub thoob extruder thiab ntsia hlau hnav tsawg dua, uas txo cov nqi kho mob thiab nce lub sijhawm ntawm cov khoom siv mus ntsib. Compounding nroj tsuag uas ua hauj lwm nrog ntau cov qauv sib txawv hais tias cov ntsia hlau kav ntev dua thaum ntuj magnesium hydroxide (Mg (OH) ₂) yog siv los ua lub ntsiab muab tub lim.
Kev ruaj ntseg ntawm chav tsev kub yog qhov tseem ceeb rau kev ua kom huv huv ntawm cov khoom thoob plaws hauv cov saw hlau thiab thaum cov polymers tau ua tiav. BP-65 qib tuaj yeem tswj qhov ntsuas kub txog 60℃yam tsis muaj clumping lossis poob nws cov khoom, uas yog qhov zoo rau cov tsev khaws khoom hauv thaj chaw sov. Thaum qhov kub ntawm 200℃thiab 320 degree, cov khoom nyob twj ywm chemically ruaj khov thaum extrusion lossis txhaj tshuaj molding. Qhov no ua rau nws tsis txhob tawg sai dhau, uas yuav txo qis qhov zoo ntawm cov khoom sib xyaw thiab ua rau kev ua haujlwm tsis zoo.
Qhov pH ntau ntawm 8 txog 10 yog alkaline, uas txhais tau hais tias nws ua haujlwm nrog feem ntau cov thermoplastics thiab muaj txiaj ntsig ntxiv hauv qee qhov xwm txheej. Cable compound formulas tau txais txiaj ntsig los ntawm qhov me me alkalinity, uas ua rau lawv tiv taus ntau dua rau cov kua qaub los nag thiab cov pa phem. Qhov ntuj tiv thaiv xeb ua rau cov khoom siv ntev dua nyob rau hauv qhov hnyav sab nraum zoov yam tsis tas yuav muaj cov khoom siv stabilizer ntxiv.
Qhov zoo sib xws thiab Batch Reliability
Rau cov chaw ua haujlwm uas ua haujlwm tas li, cov qauv tiv thaiv hluav taws yuav tsum tau ua raws li nruj me ntsis raws li cov khoom siv mus rau batch. Kev hloov pauv ntawm qhov loj me me muaj qhov cuam tshuam rau lub rheology ntawm cov khoom, uas nyob rau hauv lem hloov lub extrusion pressures, tuag swell yam, thiab zoo ntawm cov nto tiav. Txawm tias cov kev hloov me me hauv D50 qhov tseem ceeb uas nyob rau hauv cov qauv kev qhia tshwj xeeb tuaj yeem txhais tau tias kev ua haujlwm yuav tsum tau hloov, uas ua rau cov kab qeeb qeeb thiab ua rau kev tswj xyuas kom zoo dua.
Kev nyab xeeb ntawm cov nyiaj magnesium oxide ncaj qha cuam tshuam qhov nplaim hluav taws xob yuav ua haujlwm zoo li cas. Tus qauv 65% MgO nrog kev tswj nruj nruj ua kom paub tseeb tias lub peev xwm endothermic nyob twj ywm tib yam thoob plaws ntau ntau lawm. Qhov no txhais tau hais tias cov khoom kawg yuav yeej ib txwm muaj qhov ntsuas hluav taws zoo tib yam. Cov neeg yuav khoom uas muab cov khoom siv los ntawm cov kev ntsuas hluav taws nruj nruj cia siab rau qhov sib xws kom tsis txhob ua qhov kev ntsuas kim dua thiab tej zaum yuav tsum tau xa rov qab cov khoom vim cov nplaim hluav taws ua haujlwm tau hloov pauv.
Kev poob ntawm kev ntsuas hluav taws xob lees paub cov khoom siv lub peev xwm los tiv thaiv hluav taws thiab ua raws li cov cim zoo los qhia tias cov khoom siv tiag tiag. Qhov tshwj xeeb siab tshaj plaws ntawm 31% yog nyob rau hauv txoj kab nrog stoichiometric kev puas tsuaj ntawm cov ntshiab magnesium hydroxide (Mg (OH) ₂). Cov lej qis dua tuaj yeem txhais tau tias cov khoom tsis huv los yog ua tsis tiav. Cov lus qhia tshwj xeeb rau kev yuav khoom yuav tsum tau kuaj batch thiab sau cov txiaj ntsig yuav tsum tau muab ua ntej ib pob tawm. Qhov no yuav tso cai rau kev soj ntsuam zoo ua ntej cov ntaub ntawv nkag mus rau cov txheej txheem tsim khoom.
Xaus
Mineral magnesium hydroxide (Mg (OH) ₂) nplaim retardants tau dhau los ua qhov tseem ceeb hauv cov khoom siv kev nyab xeeb hauv chaw ua haujlwm vim tias muaj kev hloov pauv hauv cov cai, kev txhawj xeeb txog ib puag ncig, thiab kev ua haujlwm zoo dua. Thaum ntsuas cov hom phiaj sib tw thoob plaws qhov zoo, muab kev ruaj ntseg, thiab kev txwv nyiaj txiag,Brucite hmoovmuab cov thermal stability, hluav taws xob tiv thaiv hluav taws xob, thiab tus nqi -kev ua tau zoo uas cov neeg yuav khoom xav tau.
FAQ
Dab tsi ua rau brucite hmoov sib txawv los ntawm hluavtaws magnesium hydroxide?
Ntuj Brucite hmoov originates los ntawm cov ntxhia ore deposits thiab undergoes lub cev ua xws li kev sib tsoo thiab kev faib tawm. Synthetic magnesium hydroxide (Mg (OH) ₂) tshwm sim los ntawm cov tshuaj nag lossis daus ntawm magnesium ntsev hauv cov tshuaj reactors. Thaum cov khoom siv hluavtaws muaj kev tswj xyuas qhov loj me me thiab muaj peev xwm ua kom huv siab dua, ntxhia -raws li lwm txoj hauv kev muab cov txiaj ntsig zoo ntawm 40-60% hauv cov ntawv thov ntau.
magnesium hydroxide puas tuaj yeem hloov aluminium trihydrate hauv cov qauv uas twb muaj lawm?
Kev hloov pauv ncaj qha yuav tsum tau ua tib zoo soj ntsuam vim tias ob lub pob zeb muaj qhov sib txawv decomposition kub thiab ntom. Magnesium hydroxide's (Mg (OH) ₂) siab dua thermal stability ua rau kev ua haujlwm ntawm qhov kub siab, tab sis yuav tsum muaj kev hloov kho sib xyaw kom muaj zog rheological.
Yuav ua li cas particle loj cuam tshuam cov nplaim retardant kev ua tau zoo?
Finer particle distributions muab cov cheeb tsam saum npoo, txhim kho kev sib cuam tshuam nrog polymer matrices thiab txhim kho dispersion uniformity. Qhov no feem ntau txhais ua kom cov nplaim hluav taws zoo dua qub thiab ua kom cov pa luam yeeb zoo dua ntawm cov khoom sib npaug. Txawm li cas los xij, ultra- cov khoom zoo ua kom cov viscosity sib xyaw ua ke thiab tuaj yeem ua rau muaj teeb meem ntawm kev siv plua plav thaum tsim khoom. Daim ntawv thov sib npaug particle loj tiv thaiv cov kev xav tau thiab cov nqi txiav txim siab kom ua tiav qhov kev ua tau zoo tag nrho.
Koom tes nrog tsim Magnesium Hydroxide Nplaim Retardant Cov Chaw Muag Khoom
Henghao Technology Development (Hangzhou) Co., Ltd.coj ntau tshaj ob xyoo lawm ntawm cov kws tshaj lij hauv cov nplaim hluav taws kub hnyiab thiab cov khoom ua haujlwm rau cov tuam txhab lag luam thoob plaws hauv North America thiab Europe. Peb Brucite Powder BP-65 qib muab cov kev qhia tshwj xeeb, kev ntseeg siab, thiab cov nqi sib tw uas cov tuam txhab cable, cov neeg tsim khoom vaj huam sib luag, thiab cov polymer compounders xav tau hauv kev lag luam niaj hnub no.
Tus nqi ncaj qha ntawm lub Hoobkas tshem tawm cov cim nruab nrab thaum tswj xyuas cov qauv zoo uas tau lees paub los ntawm cov txheej txheem kev sim ua tiav. Hu rau peb pab neeg technical ntawminfo@henghaopigment.comlos thov cov qauv khoom, sib tham txog daim ntawv thov- cov kev cai tshwj xeeb, lossis tshawb xyuas seb peb cov khoom lag luam brucite muaj peev xwm txhawb nqa koj lub hom phiaj kev yuav khoom li cas. Mus ntsib henghaocolor.com kom pom cov ntaub ntawv ua tiav thiab pib koj txoj kev koom tes nrog tus neeg muag khoom ntseeg siab tau cog lus rau koj txoj kev vam meej ntev -.
Cov ntaub ntawv
1. Hluav taws kub Retardancy ntawm cov khoom siv Polymeric, thib ob tsab. Grand, AF thiab Wilkie, CA, eds. CRC Xovxwm, 2010.
2. Nplaim Retardants: Polymer Blends, Composites thiab Nanocomposites. Visakh, PM thiab Arao, Y., eds. Springer International Publishing, 2015.
3. Phau Ntawv Qhia Txog Kev Tiv Thaiv Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Nolan, DP William Andrew Publishing, 2014.
4. Mineral Fillers nyob rau hauv Thermoplastics: Filler Manufacture thiab Characterisation. Rothon, RN Advances in Polymer Science, Vol 139, Springer-Verlag, 1999.
5. Tsis yog-Halogenated Flame Retardant Phau Ntawv. Morgan, AB and Wilkie, CA, eds. Wiley-Scrivener Publishing, 2014.
6. Plastics Flammability Phau Ntawv Qhia: Cov Ntsiab Cai, Cov Cai, Kev Ntsuas, thiab Kev Pom Zoo, Thib Peb. Troitzsch, J. Hanser Publications, 2004.
