Khoom npe:polycarbonate

Molecular hom:C31H32O7

CAS Nr:25037-45-0

Cov khoom siv molecular:

Chemical Properties:

Polycarbonateyog ib qho amorphous, tasteless, odorless, non-toxic pob tshab thermoplastic polymer, muaj cov khoom zoo heev, thermal thiab hluav taws xob, tshwj xeeb tshaj yog cuam tshuam, zoo toughness, creep me me, cov khoom loj yog ruaj khov. Nws muaj kev cuam tshuam lub zog ntawm 44kj / mz, tensile zog> 60MPa. polycarbonate kub tsis kam yog qhov zoo, tuaj yeem siv tau ntev ntawm - 60 ~ 120 ℃, kub deflection kub 130 ~ 140 ℃, iav hloov kub ntawm 145 ~ 150 ℃, tsis muaj qhov pom tseeb melting point, hauv 220 ~ 230 ℃ yog lub xeev molten . Thermal decomposition kub> 310 ℃. Vim lub rigidity ntawm cov saw hlau molecular, nws cov viscosity yaj yog ntau dua li ntawm cov thermoplastics.

Daim ntawv thov:

Polycarbonates yog cov yas siv dav hauv kev lag luam niaj hnub uas muaj qhov kub thiab txias thiab cuam tshuam. Cov yas no tshwj xeeb yog qhov zoo rau kev ua haujlwm nrog ntau cov ntsiab lus txhais cov tswv yim (txhaj tshuaj molding, extrusion rau hauv cov raj lossis lub tog raj kheej thiab thermoforming). Nws kuj tseem siv tau thaum xav tau qhov pom kev pom tseeb, muaj ntau dua 80% kev sib kis mus txog 1560-nm ntau yam (nruab nthwv dej infrared ntau). Nws muaj cov tshuaj lom neeg tsis zoo, ua tshuaj tiv thaiv rau diluted acids thiab cawv. Nws tsis zoo tiv thaiv ketones, halogens, thiab concentrated acids. Qhov tsis zoo tseem ceeb cuam tshuam nrog polycarbonates yog qhov kub hloov pauv iav qis (Tg> 40 ° C), tab sis nws tseem yog siv los ua cov khoom siv qis hauv cov tshuab microfluidic thiab kuj yog ib txheej kev txi.