Puas yog polyurethane yog cov khoom siv phom sij?
Puas yog polyurethane yog cov khoom siv phom sij?

Video: Puas yog polyurethane yog cov khoom siv phom sij?

Video: Puas yog polyurethane yog cov khoom siv phom sij?
Video: koj taj tiag tiag Xyo vwj nkauj tawm tshiab 6/12/2020-2021 2024, Kaum ib hlis
Anonim

Polyurethane polymer yog ib yam khoom uas combustible thiab yuav ignited yog raug rau ib tug qhib nplaim taws. Kev raug tshuaj lom neeg uas yuav raug tso tawm thaum lub sijhawm lossis tom qab siv polyurethane Cov tshuaj tsuag ua npuas dej (xws li isocyanates) muaj teeb meem rau tib neeg kev noj qab haus huv thiab yog li yuav tsum tau ceev faj tshwj xeeb thaum lub sijhawm thiab tom qab txheej txheem no.

Yog li, polyurethane puas yog hazmat?

PU ua npuas ncauj tsis raug xaiv los ua ib qho Cov khoom siv phom sij vim tias nws tsis suav tias yog ib yam khoom lossis cov khoom muaj peev xwm ua rau muaj kev phom sij lossis tsis tsim nyog rau kev noj qab haus huv, kev nyab xeeb, thiab khoom vaj khoom tsev thaum thauj hauv kev lag luam.

Tsis tas li ntawd, polyurethane yog dab tsi? Polyurethane yog ib tug polymer koom nrog urethane txuas. Cov kev sib txuas no yog tsim los ntawm reacting di- lossis poly-isocyanate nrog polyol. Polyurethane yog tshwj xeeb nyob rau hauv uas nws tsis yog manufactured zoo li ntau lwm yam plastics. Feem ntau cov polymers, xws li polyethylene, yog tsim nyob rau hauv daim ntawv ntawm cov hmoov thiab ces molded rau hauv ib tug xav tau daim ntawv.

Hauv qhov no, puas yog polyurethane khoom zoo?

Polyurethane yog siv nyob rau hauv cov khoom marine xws li lifeboats vim nws cov khoom tsis muaj dej. Polyurethane ntaub , sau PUL ntaub , yog waterproof ntaub , feem ntau polyester, tab sis tej zaum yuav yog paj rwb los yog polyblen khoom uas tau kub-laminated rau ib polyurethane txheej Nws yog lub teeb yuag thiab ruaj khov heev.

Puas yog polyurethane yog carcinogen?

Isocyanates yog cov khoom siv raw uas tsim txhua yam polyurethane cov khoom. Isocyanates suav nrog cov tebchaw uas muaj peev xwm ua rau tib neeg carcinogens thiab paub tias ua rau mob qog noj ntshav hauv tsiaj.

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