Cellulose acetate yog cov khoom siv hluav taws xob semi-hluav taws xob ua los ntawm cov ntoo ntuj (feem ntau tau muab los ntawm ntoo pulp lossis cov paj rwb tseb. Nws ua ke cov khoom siv xyoob ntoo ntawm cov muaj zog ntawm cov khoom siv hluavtaws thiab tau siv dav hauv cov ntawv nyeem hluav taws xob thiab cov duab dhos, cov ntxaij lim dej thiab lwm daim teb.
Cov txheej txheem ntau lawm
Raw khoom pretreatment: ntoo pulp lossis paj rwb hnab paj rwb yog huv si kom tshem tawm cov impurities xws li ligninellulose
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Acetylation cov tshuaj tiv thaiv: hauv qab catalysis ntawm sulfuric acid, cellulose reacts nrog acetic anhydride kom ua cov tshuaj pleev pob txha caj tshuaj.
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Hydrolysis: Tswj cov degree ntawm hydrolysis kom tau CA nrog cov qib sib txawv ntawm kev hloov pauv (DS)
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Nag lossis ntxuav: ntxiv dej rau daus ca thiab ntxuav kom tshem tawm residual acid thiab catalyst
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Kom qhuav thiab granulation: Tom qab ziab, nws yog ua rau cov hmoov lossis cov granules rau kev ua tiav tom ntej
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Lub cev thiab tshuaj
Cov Khoom Siv Lub Cev
Zog: Dawb lossis me ntsis xim granules / hmoov
Ntom ntom: 1. {28-1. 34 g / cm³
Melting taw tes: 230-300 degree (decomposition)
Transmittance: >90% (Haum rau cov yeeb yaj kiab kho qhov muag)
Cov khoom siv neeg kho tshuab: muaj kev nruj me ntsis, tab sis qis dua li hluavtaws plastics xws li tsiaj
Tshuaj Tshuaj Muaj Zog
Cov kuab tshuaj tiv thaiv: tiv taus cov roj thiab aliphatic hydrocarbons, tab sis yooj yim hydrolyzed los ntawm cov muaj zog acids / alkalis
Biodegradity: tsis pom zoo los ntawm cov kab mob me me hauv qhov chaw ib puag ncig (zoo dua li cov plastics tsoosics)
Thermal Stability: ruaj khov qis dua 200 degree, yooj yim decomposed ntawm qhov kub siab
Chaw thov
Textile Fiber
Acetate Fiber: Siv nyob rau hauv cov ris tsho siab thiab cov ntaub qhwv, nws muaj cov kab lus silky thiab xis nyob.
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Plastics thiab cov yeeb yaj kiab
Qhov muag ntxas eyeglass, cov khoom ua si, ntim khoom ntim: hloov cov teeb pom kev zoo, muaj ntau puag ncig ua phooj ywg.
LCD Polarizer: CTA zaj duab xis yog siv rau hauv smartphones thiab TV screens
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Cov Ntxaij Lim Dej
Txog 90% ntawm luam yeeb ntxaij hauv ntiaj teb siv Diacetate vim tias nws cov yam ntxwv tsis muaj txiaj ntsig thiab siab tshaj tawm cov khoom.
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Txheej ci thiab inks
Cab (cellulose acetate butetate butetate Butyrate) yog siv nyob rau hauv cov xim pleev xim rau kev txhim kho huab cua tsis kam thiab ci.
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Tshuaj thiab Khoom Noj
Kev ua yeeb yaj kiab siv yeeb yaj kiab-tso tawm: CA Jearcheres tau siv los tswj cov tshuaj tso tawm.
Cov zaub mov ntim khoom noj khoom haus: biodegradable thiab ua raws li kev cai ib puag ncig.
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Cim npe nrov: Cellulose acetate, Suav cellulose acetate manufacturers, lwm tus neeg, Hoobkas