Apr 01, 2020

PVC Keeb Kwm Kev Txhim Kho

Tso lus

PVC tau tshawb pom thawj zaug los ntawm tus kws tshawb fawb muaj npe hauv Fabkis (Henri Victor Regnault) xyoo 1835. Tom qab xyoo 1872, lwm tus kws tshawb fawb German (Eugen Baumann) kuj tshawb pom cov khoom tshiab no. Lub sijhawm ntawd, cov khoom siv PVC yog cov khoom dawb, tsis yooj yim, thiab tsis muaj daim ntawv thov siv. Thaum xyoo 20, 20, ib pawg kws kho mob tshuaj xws li Lavxias chemists (Ivan Ostromislensky) thiab Fritz Klatte tau sim hloov qhov tsis yooj yim ntawm PVC los ua cov khoom lag luam, tab sis txhua yam ua tsis tiav.

Kom txog rau xyoo 1926, Waldo Semon (BF Goodrich Company) hauv Tebchaws Meskas tau ua ke PVC ua ke thiab thov rau daim ntawv patent hauv Tebchaws Meskas. Nws daws qhov tsis yooj yim ntawm PVC los ntawm kev sib txuam nrog ntau yam ntxiv, thiab nce kev nthuav dav ntawm PVC cov khoom lag luam kom nws muaj lub hauv paus ntawm cov khoom lag luam. Xyoo 1931, Lub teb chaws Yelemees pib tsim PVC los ntawm cov txheej txheem emulsion, thiab xyoo 1941, Tebchaws Asmeskas pib tsim PVC los ntawm cov qauv ntab. Raws li qhov tshwm sim, cov khoom ntsig txog PVC tau pib siv dav hauv kev tsim khoom thiab siv lub neej. Nrog cov kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, tam sim no kev tsim hluav taws xob PVC ntau lawm tau hloov los ntawm cov qauv tshuaj pleev ib txwm, uas ua rau nws siv tau yooj yim dua thiab tus nqi txo heev.

Xyoo 1933, WLSimon npaj siab siv cov dej kub ua kua roj tov thiab tricresol phosphate kom sov thiab sib tov nrog PVC, uas tuaj yeem ua tiav cov mos mos polyvinyl chloride khoom, uas ua rau muaj kev cuam tshuam tiag tiag hauv kev siv PVC. Xyoo 1936, kev ncua polymerization ntawm vinyl chloride thiab kev ua cov ntawv thov ntawm PVC tau tsim. Txhawm rau kom yooj yim cov txheej txheem ntau lawm thiab txo kev siv hluav taws xob, lub tuam txhab Fabkis Saint-Gobain tau tsim cov txheej txheem polymerization ntau hauv xyoo 1956.

JIAAO yog cov kws tshaj lij ntawm PVC Eco - cov chaw tsim hluav taws xob zoo nkauj thiab chaw tsim hluav taws xob kub, zoo li ESBO / DOA / DOTP / TOTM / DOS / EFAME / CPW 52 / DINCH / CFAME thiab lwm yam, thov koj xav tiv tauj peb.


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