Classification ntawm Plasticizers

Cov plasticizers feem ntau suav nrog aliphatic dibasic acid esters, phthalates (xws li phthalates, terephthalates), benzene polyesters, benzoates, polyols, chlorinated hydrocarbons, epoxides, citric acid esters, polyesters thiab lwm yam. Tam sim no, ntau txhiab tus plasticizers tau tsim thiab tsim nyob hauv lub ntiaj teb, ntawm 300 ~ 400 tau siv ntau dua, thiab txog 100 ~ 110 yog tsim nyob rau hauv Suav teb.
Ntau yam khoom siv yas kho mob xws li catheters, hnab infusion, thiab lwm yam, kuj muaj cov tshuaj no. Muaj ntau tshaj li 100 hom khoom siv plasticizer, uas tau siv txij li xyoo 1920s lig, thiab phthalates tau hloov cov ntxhiab tsw ntxhiab thiab volatile camphor siv los ua cov yas thaum lub sijhawm ntawd. Xyoo 1935, nrog rau kev tsim khoom ntawm polyvinyl chloride, phthalates tau siv ntau dua thiab maj mam dhau los ua lub cev tseem ceeb ntawm plasticizers, suav txog li 80 feem pua ​​​​ntawm tag nrho cov khoom tsim tawm ntawm plasticizers. Cov yas yas no muaj cov dej tsis zoo thiab cov roj ua haujlwm, tsis muaj xim pob tshab oily kua ntawm chav tsev kub, nyuaj rau yaj hauv dej, yooj yim rau yaj hauv methanol, ethanol, ether thiab lwm yam organic solvents. Plasticizers, suav nrog phthalates, yog cov khoom siv petrochemical uas tsuas yog siv tau hauv kev lag luam xwb, tsis yog cov khoom noj khoom haus raug cai, thiab muaj tshuaj lom, yog li nws yog txwv tsis pub ntxiv rau lawv rau txhua yam zaub mov, tshuaj thiab khoom noj qab haus huv.