Puas yog tus kub yaj cov yeeb yaj kiab nplaum xws li cov teeb meem zoo li formaldehyde?
Lub ntsiab Cheebtsam ntawm kub melt nplaum zaj duab xis yog cov molecular polymers, uas yog, polyamide, polyurethane thiab lwm yam ntaub ntawv.
Lawv muaj qib siab ntawm polymerization, yog li ntawd lawv tsis muaj kev phom sij rau tib neeg lub cev. Nyob rau tib lub sijhawm, lub kub yaj adhesive zaj duab xis wets
Qhov saum npoo ntawm cov khoom siv cua sov los ntawm cov cua sov thiab melting, thiab nws tsis tas yuav muaj kev pab ntub cov khoom.
Yog li ntawd, tus kub yaj adhesive zaj duab xis yog ib puag ncig cov adhesive adhesive uas tsis muaj formaldehyde lossis cov kuab tshuaj.
Lub sij hawm Post: Aug-17-2021