Puas yog polystyrene hlaws tsis muaj dej?
Puas yog polystyrene hlaws tsis muaj dej?

Video: Puas yog polystyrene hlaws tsis muaj dej?

Video: Puas yog polystyrene hlaws tsis muaj dej?
Video: Nyob tsi tau yog tsi muaj koj-Aloos 2024, Kaum ib hlis
Anonim

Thermal conductivity: 0.033 W / (m·K) (ua npuas ncauj, ρ 0

Tsuas yog li ntawd, yuav ua li cas thaum polystyrene ntub dej?

Cov ntu loj ntawm lub rooj tsavxwm ua npuas dej tuaj yeem ua rau nws nyuaj rau txhua qhov dej noo ntawm phab ntsa thiab cov rwb thaiv tsev kom dim. Qhov seem ntawm cov dej noo no sau tawm tsam phab ntsa, ua rau cov kab mob thiab pwm loj hlob, thiab txawm tias ntoo rot.

Tsis tas li ntawd, polystyrene hlaws dai yog dab tsi? EPS yog tsim los ntawm styrene monomer; tsawg theem ntawm styrene tshwm sim nyob rau hauv ntau yam nroj tsuag, txiv hmab txiv ntoo, zaub, txiv ntseej thiab nqaij. EPS yog derivative ntawm ethylene thiab benzene thiab yog ua siv cov txheej txheem polymerisation uas ua rau translucent spherical hlaws ntawm polystyrene , hais txog qhov loj ntawm qab zib granules.

Tom qab ntawd, ib tus tuaj yeem nug, puas yog polystyrene hlaws muaj kev nyab xeeb?

Polystyrene hlaws dai feem ntau yog siv los ua cov khoom muag muag zoo li taum pauv. Raws li US Environmental Protection Agency thiab US Centers for Disease Control, polystyrene hlaws dai siv rau hauv lub hnab ntim taum yog 100% nyab xeeb.

Dab tsi yog cov yam ntxwv ntawm polystyrene?

Polystyrene - PS. Polystyrene homopolymer, hu ua "crystal" polystyrene hauv kev lag luam, yog amorphous, tsis muaj xim, thiab pob tshab khoom siv thermoplastic. Nws yog nruj, nkig, kuj nyuaj thiab muaj zoo heev gamma hluav taws xob tsis kam, hluav taws xob zoo khoom tab sis muaj cov tshuaj tsis zoo thiab UV tsis kam.

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