Physicochemical khoom ntawm silicone sealant

Silicone sealant yog cov tshuaj pleev ib ce -zoo li cov khoom siv kho kom tawv, roj hmab-zoo li cov khoom thaum sib cuag nrog cov huab cua. Silicone sealants feem ntau muab faib ua acetoxy, alkoxy, amine, thiab oxime hom.

Silicone sealants muaj kev tiv thaiv zoo heev rau ultraviolet (UV) hluav taws xob, huab cua, thiab kub heev; Lawv cov pob txha Si-O tiv taus UV degradation. Lawv khaws zoo elasticity ntawm qhov kub thiab txias (-50 degree) thiab tsis yooj yim soften los yog degrade nyob rau hauv high kub (200 degree). Ib qho - cov khoom siv silicone sealants kho los ntawm kev nqus dej noo los ntawm huab cua, thaum ob lub ntsiab sealants kho los ntawm cov tshuaj tiv thaiv uas tshwm sim los ntawm kev sib xyaw ntawm ob yam khoom.