Organic iav methyl methacrylate, ntau precisely hu ua polymethyl methacrylate (PMMA), nws cov ntaub ntawv raw thiab cov txheej txheem tuaj yeem piav qhia hauv qab no:
Main raw khoom
Methyl methacrylate (MMA): Qhov no yog chav tsev tseem ceeb rau kev tsim cov polymethyl methacrylate (PMMA). MMA tuaj yeem tsim los ntawm ntau txoj hauv kev, suav nrog tab sis tsis txwv rau cov hauv qab no:
Ammonia-raws li txoj kev fermentation: React ammonia nrog sulfuric acid los tsim lub hauv paus A, puag B, sulfuric acid, ces hnov mob nrog ammonia thaum kawg tsim cov hauv paus A, puag C, sulfuric acid.
C-txoj kev: C-txoj kev yog muab ammonia thiab dej rau qhov kev txiav txim ntawm cov hlau catalysers (xws li carbon lossis carbon catalysers) los tsim cov hauv paus C-methanate. Cov tshuaj tiv thaiv kub feem ntau yog 45-115 degree, cov tshuaj tiv thaiv siab yog 20-60atm, thiab tag nrho cov tshuaj tiv thaiv tau tshwm sim hauv inertial dissolving, nrog rau kev hloov pauv mus txog 99%.
B-hom aerosol txheej txheem (C-2 txoj kev): B-hom aerosol thiab carbon dioxide react nrog nitrile nyob rau hauv qhov kev txiav txim ntawm activating agents los tsim C-type acid, uas ces reacts nrog nitrile los tsim A-base C- hom kua qaub thiab dej, nrog rau tag nrho cov hloov pauv mus txog 95%. Txoj kev no yog qhov yooj yim los ua, cov khoom siv raw khoom yooj yim tau txais, thiab nws muaj qee qhov kev sib tw.
Alloy acidification txoj kev: Alloy acid yog synthesized los ntawm kev sib hloov acidic resin nrog acidic olefin nyob rau hauv qhov kev txiav txim ntawm ib tug catalyzing tus neeg saib xyuas, thiab ces reacting cov kua qaub nrog cua nyob rau hauv catalyzing tus neeg saib xyuas tej yam kev mob los tsim base-III acid, uas yog tom qab ntawd hloov mus rau hauv lub hauv paus-III acid. .
Cov tshuaj ntxiv
Thaum lub sij hawm tsim cov txheej txheem, txhawm rau txhim kho kev ua tau zoo ntawm cov iav organic los yog ua kom tau raws li cov kev cai tshwj xeeb, qee cov additives feem ntau yog ntxiv, xws li:
Kev sib cuam tshuam: Txhawm rau txhawb kev sib cuam tshuam ntawm cov chav nyob, cov iav organic tsim cov qauv sib txuas ruaj khov dua thiab txhim kho cov cua sov thiab kev poob siab.
Colorants: Siv rau xim organic iav, muab faib ua cov organic thiab tsis yog organic pigments.
UV-resistant: Vim tias cov iav organic tau yooj yim tawm tsam los ntawm UV rays, ntxiv UV-tiv taus cov khoom tuaj yeem txuas ntxiv nws lub neej kev pab cuam.
Anti-static: Siv cov khoom iav organic los tiv thaiv hluav taws xob zoo li qub thiab nqus cov tshauv.
Polymerization cov tshuaj tiv thaiv
MMA monomer tau dhau los ua cov tshuaj tiv thaiv polymerization nyob rau hauv qhov tsim nyog (xws li kub, siab, activators, thiab lwm yam) los tsim cov saw hlau polymer, uas tom qab ntawd polymerized rau hauv PMMA (Polymerized Methacrylate). Cov tshuaj tiv thaiv aggregation tuaj yeem pom tau los ntawm ntau txoj hauv kev, xws li lub cev sib sau ua ke, kev daws teeb meem sib sau ua ke, emulsion aggregation, thiab lwm yam. Ntawm lawv, lub ntsiab lus ntawm lub cev aggregate muaj qhov zoo ntawm siab purity thiab siab molecular hnyav, tab sis cov txheej txheem tshuaj tiv thaiv yog nyuaj rau tswj.
Cov yam ntxwv ntawm cov khoom
PMMA muaj ntau yam zoo heev, xws li:
High transparency: lub teeb transmittance tshaj 92%, ua rau nws yog ib qho zoo heev pob tshab khoom yas.
Zoo: Cov txheeb ze ntom ntom tsuas yog 1.19, txog ib nrab ntawm cov iav inorganic.
Cov txheej txheem yooj yim: tuaj yeem thermally molded rau hauv ntau yam duab, thiab tseem tuaj yeem ua machined los ntawm kev txiav, drilling, engraving, thiab lwm yam. Zoo huab cua tsis kam: Muaj huab cua zoo thiab tshuaj lom neeg ruaj khov.
Lwm yam nta: Yooj yim rau dye, pwm, thiab lwm yam.
Cov chaw thov
Vim yog cov khoom zoo ntawm PMMA, nws tau siv dav hauv cov hauv qab no:
Cov ntawv tshaj tawm: Siv nws cov pob tshab siab thiab ua haujlwm yooj yim los tsim cov ntawv tshaj tawm thiab cov paib.
Architectural iav qhov rais: Ua los ntawm cov khoom siv iav pob tshab, nws muab cov teeb pom kev zoo thiab pom kev.
Cov khoom siv teeb pom kev zoo: teeb pom kev zoo, teeb pom kev zoo, thiab lwm yam. Cov khoom siv: Ua nrog ntau yam pob tshab thiab cov plhaub.
Daim iav kho qhov muag: Siv lub teeb xa hluav taws xob siab thiab kev ua haujlwm zoo tshaj plaws los tsim cov iav kho qhov muag.
Kev tiv thaiv kev nyab xeeb: Lub npog ntsej muag tiv thaiv kev nyab xeeb rau cov khoom siv.
Cov khoom siv niaj hnub: cov tais diav, khob dej, thiab lwm yam.
Aviation: Lub dav hlau lub qhov rais feem ntau yog ua los ntawm cov iav organic (PMMA), uas tiv taus cov hluav taws xob ultraviolet thiab tswj cov pob tshab thaum lub sij hawm ya davhlau siab.
Raws li tau hais los saum no, organic iav carboxylic acid (organic base carboxylic acid A) yog tsim los ntawm reacting nrog organic puag carboxylic acid A ib leeg, thiab tuaj yeem muab ntxiv ntau yam los txhim kho nws cov kev ua tau zoo yog tias tsim nyog. Los ntawm cov txheej txheem tsim khoom thiab rov ua cov tshuaj tiv thaiv thiab kev tswj xyuas kev ua haujlwm zoo, peb tau ua tiav cov khoom yas pob tshab nrog kev ua tau zoo heev.