Puas yog cov nplaum nplaum kub yaj muaj cov tshuaj phem xws li formaldehyde?
Lub ntsiab Cheebtsam ntawm kub yaj nplaum zaj duab xis yog siab molecular polymers, uas yog, polyamide, polyurethane thiab lwm yam ntaub ntawv.
Lawv muaj cov qib siab ntawm polymerization, yog li lawv tsis muaj teeb meem rau tib neeg lub cev. Nyob rau tib lub sijhawm, kub yaj nplaum zaj duab xis ntub dej
qhov saum npoo ntawm cov khoom siv los ntawm cua sov thiab melting, thiab nws tsis xav tau ib qho hnyav los pab ntub cov khoom.
Yog li ntawd, cov nplaum nplaum kub yaj yog ib puag ncig tus phooj ywg nplaum uas tsis muaj formaldehyde lossis cov kuab tshuaj.
Post lub sij hawm: Aug-17-2021