Muaj ntau hom khob dej yas, thiab nws yog ib qho tseem ceeb uas peb yuav tsum dazzled thaum xaiv cov khob dej yas.
Txhawm rau qhia rau txhua tus paub ntau ntxiv txog lub khob dej yas thiab tuaj yeem xaiv lawv cov khob dej yas uas nyiam, cia kuv tsom rau kev qhia rau koj txog qhov sib txawv ntawm PC thiab PP hauv cov khoom siv khob dej yas.
PC yog cov lus Askiv luv ntawm polycarbonate, ib qho ntawm cov khoom siv ntau tshaj plaws.Cov khoom no tsis muaj tshuaj lom thiab tshwj xeeb tshaj yog siv los ua cov me nyuam lub raj mis, qhov chaw khob, thiab lwm yam. Vim tias nws muaj bisphenol A, nws tau muaj kev tsis sib haum xeeb.
Hauv txoj kev xav, ntev npaum li 100% ntawm bisphenol-A hloov mus rau hauv cov qauv yas thaum lub sijhawm tsim cov txheej txheem ntawm polycarbonate, nws txhais tau tias tsis muaj bisphenol-a hauv cov khoom txhua, thiab tsis muaj kev pheej hmoo rau kev noj qab haus huv.Txawm li cas los xij, yog tias qhov me me ntawm BPA tsis hloov mus rau hauv cov qauv yas ntawm polycarbonate, nws yuav raug tso tawm rau hauv cov zaub mov lossis dej haus, hem kev noj qab haus huv thiab kev nyab xeeb ntawm cov neeg siv, tshwj xeeb tshaj yog cov hluas.
PP yog cov lus Askiv luv ntawm polypropylene thiab muaj cov cua sov zoo.Cov khoom tuaj yeem ua kom tsis muaj menyuam ntawm qhov kub siab tshaj 100 degrees Celsius thiab yuav tsis deform ntawm 150 degrees Celsius yam tsis muaj kev quab yuam sab nraud.
Polypropylene yog ib qho ntawm cov yas siv ntau tshaj plaws hauv microwave ncu.Txawm li cas los xij, tom qab ua tib zoo tshawb xyuas, peb yuav pom tias polycarbonate ntawm kev ua lag luam feem ntau kim dua li cov khoom siv polypropylene, thiab cov neeg siv khoom nyiam ua raws li lub tswv yim ntawm "qhov kim dua, qhov zoo dua".Qhov tseeb, tus nqi sib txawv yog vim tam sim no tus nqi ntawm ib tuj ntawm polycarbonate ntawm lub khw yog ntau dua li tus nqi ntawm ib tuj ntawm polypropylene.
Muab piv rau ob cov ntaub ntawv, nws tuaj yeem pom tias polypropylene muaj kev hnav tsis zoo dua li polycarbonate, yog li thaum ua khob pob tshab, polycarbonate feem ntau yog siv los ua cov khoom siv.Cov khoom siv polycarbonate zoo nkauj dua li cov khoom siv polypropylene.Txawm li cas los xij, los ntawm qhov kev nyab xeeb ntawm qhov pom, kev ua haujlwm kub ntawm polypropylene yas nce mus txog 170 ~ 220 degrees Celsius, yog li cov dej kub kub tsis tuaj yeem decompose nws, yog li polypropylene muaj kev nyab xeeb dua li polycarbonate.
Post lub sij hawm: Mar-12-2024