1. Zida zosiyanasiyana

PP masutukesindi polypropylene resins.Chifukwa homopolymer PP imakhala yolimba kwambiri pamene kutentha kuli kokwera kuposa 0C, zipangizo zambiri zamalonda za PP zimakhala ndi ma copolymers omwe ali ndi 1 ~ 4% ethylene yowonjezeredwa kapena zingwe zokhala ndi ethylene yapamwamba.formula copolymer.

PC mu sutikesi ya PC imatchedwa "polycarbonate".Polycarbonate ndi utomoni wolimba wa thermoplastic womwe umachokera kumagulu a CO3 mkati mwake.Ndi bisphenol A ndi carbon oxychloride synthesis.Njira yomwe imagwiritsidwa ntchito kwambiri ndi njira ya melt transesterification (bisphenol A ndi diphenyl carbonate amapangidwa ndi transesterification ndi polycondensation).

2. Makhalidwe osiyanasiyana

Sutukesi ya PP: Zinthu zamtundu wa PP zamtundu wa copolymer zimakhala ndi kutentha kwapang'onopang'ono (100C), kuwonekera pang'ono, kuwala kochepa, kukhazikika kochepa, koma kumakhala ndi mphamvu zokulirapo.Mphamvu ya PP imawonjezeka ndi kuchuluka kwa ethylene.Kutentha kwa Vicat kufewetsa kwa PP ndi 150C.Chifukwa cha kuchuluka kwa crystallinity, nkhaniyi imakhala ndi kuuma kwapamwamba komanso kukana kukana.

Chikwama cha PC: Ndi utomoni wa amorphous thermoplastic wokhala ndi zinthu zabwino kwambiri, zokhala ndi zotchingira bwino kwambiri zamagetsi, elongation, kukhazikika kwa mawonekedwe ndi kukana kwamankhwala, mphamvu yayikulu, kukana kutentha ndi kuzizira;ilinso ndi Zozimitsa zokha, zozimitsa moto, zopanda poizoni, zowoneka bwino, etc.

3. Mphamvu zosiyana

Sutukesi ya PP: khalani ndi mphamvu zokulirapo.Kuuma kwapamtunda komanso kukana kukana kwazinthu izi ndizabwino kwambiri.

Sutukesi ya PC: Mphamvu zake zimatha kukwaniritsa zosowa zosiyanasiyana, kuyambira mafoni am'manja mpaka magalasi oletsa zipolopolo.Poyerekeza ndi zitsulo, kuuma kwake sikukwanira, zomwe zimapangitsa kuti maonekedwe ake azikhala osavuta kukanda, koma mphamvu zake ndi kulimba kwake ndi zabwino kwambiri, kaya ndi zolemetsa zolemetsa kapena zonse , bola ngati simukuyesera kugwedeza, ndi nthawi yayitali.