Polystyrene yas hloov kho

Polystyrene muaj qhov tsis zoo ntawm qhov siab brittleness, tsis tshua muaj softening kub, thiab yooj yim tawg, uas cuam tshuam rau nws txoj kev siv. Txhawm rau tshem tawm nws qhov tsis txaus, hloov kho polystyrene tau tshwm sim; Txoj kev yog copolymerize styrene monomer nrog rau lwm cov units, los yog sib tov polystyrene nrog rau lwm cov polymers thiab interpolymers. Nws hloov ntau yam muaj xws li cov hauv qab no:

1. tawv polystyrene

Txhawm rau txhim kho lub brittleness thiab brittleness ntawm polystyrene, txoj kev sib xyaw nrog elastomers xws li roj hmab (styrene-butadiene los yog nitrile-butadiene) yog siv los ua tawv-hloov polystyrene, uas txhim kho qhov cuam tshuam lub zog ntawm polystyrene. Txawm li cas los xij, cov pob tshab thiab cov khoom hluav taws xob ntawm cov khoom raug txo.

2. Chlorinated Styrene

Ob chlorine atoms tau nkag mus rau hauv cov qauv styrene los ua dichlorostyrene monomer, uas tom qab ntawd polymerized rau hauv dichlorostyrene hluavtaws cob. Qhov hloov kho polystyrene no tseem yog cov khoom pob tshab, cov cua sov ua haujlwm tau zoo heev, thiab kev cuam tshuam lub zog kuj tseem txhim kho.

3. Styrene thiab acrylic copolymer (AS)

Vim qhov kev taw qhia ntawm acrylonitrile monomer, cov tshuaj tiv thaiv corrosion, kub tsis kam thiab cov khoom siv dag zog tuaj yeem txhim kho yam tsis muaj qhov tawg, uas yog cov khoom siv zoo tagnrho.

4. Styrene, butadiene, acrylonitrile copolymer (ABS)

Butadiene yog ib qho zoo elastomer, thiab ntau yam monomers tau siv lawv tus kheej cov khoom zoo hauv copolymer. Yog li ntawd, ABS yas muaj kev ua tau zoo thiab yog ib qho zoo tagnrho engineering yas.