Kodi pali kusiyana kotani pakati pa PP ndi polyester?

1. kufufuza zinthu

PP Nsalu yosalukidwa: Ulusi womwe umagwiritsidwa ntchito popanga nsalu zopanda nsalu ndi polypropylene, womwe ndi ulusi wopangidwa ndi polymerization wa propylene.

Nsalu ya poliyesitala yosalukidwa: ulusi womwe umagwiritsidwa ntchito popanga nsalu zosalukidwa ndi ulusi wa poliyesitala, womwe ndi ulusi wopangidwa ndi kupota poliyesitala wopangidwa kuchokera ku organic dibasic acid ndi diol.

2. Kachulukidwe kosiyana

Nsalu yosalukidwa ya PP: Kuchuluka kwake ndi 0.91g/cm3 yokha, yomwe ndi yopepuka kwambiri pakati pa ulusi wamankhwala wamba.

Nsalu ya poliyesitala yosawomba: Pamene poliyesitala ili yaamorphous, kachulukidwe kake ndi 1.333g/cm3.

3. Kukana kuwala kosiyana

Nsalu yosalukidwa ya PP: kukana kuwala kosasunthika, kukana kukhazikika, kukalamba kosavuta komanso kuwonongeka kwamphamvu.

Nsalu ya polyester yopanda nsalu: kukana bwino kwa kuwala, kutayika kwa mphamvu 60% kokha pambuyo pa kuwala kwa dzuwa kwa 600h.

4. Zosiyanasiyana matenthedwe katundu

Nsalu yosalukidwa ya PP: kusakhazikika kwamafuta, osagonjetsedwa ndi kusita.

Nsalu ya polyester yopanda nsalu: kukana kutentha kwabwino, kusungunuka kwa pafupifupi 255 ℃, ndi mawonekedwe okhazikika pansi pamikhalidwe yosiyanasiyana yogwiritsira ntchito kumapeto.

5, kukana kwa alkali kosiyana

Nsalu ya polypropylene yopanda nsalu: Polypropylene imakhala ndi kukana kwamankhwala abwino, ndipo kuwonjezera pa koloko yokhazikika, polypropylene imakhala ndi kukana kwa alkali wabwino.

Nsalu ya poliyesitala yosalukidwa: Polyester imakhala yosakanizika bwino ya alkali, yomwe imatha kuwononga ulusiwo ikakumana ndi alkali wokhazikika kutentha kutentha ndikusungunula alkali kutentha kwambiri.Ndizokhazikika kuti zisungunuke zamchere kapena zofooka za alkali pa kutentha kochepa.