Pepala la PP loletsa moto ndi pepala la pulasitiki lopangidwa ndi utomoni wa PP, lokhala ndi zowonjezera zosiyanasiyana zomwe zimawonjezeredwa kudzera mu extrusion, calendering, kuziziritsa, kudula ndi njira zina. Pepala la PP loletsa moto ndi zinthu zopangidwa ndi theka-crystalline. Ndi lolimba kuposa PE ndipo lili ndi malo osungunuka kwambiri. Chifukwa kutentha kwa homopolymer PP kumakhala kofooka kwambiri kuposa 0C, zinthu zambiri zamalonda za PP ndi ma copolymers osasinthika okhala ndi 1-4% ya ethylene kapena ma block copolymers okhala ndi ethylene yambiri. Zinthu za Copolymer PP zimakhala ndi kutentha kochepa kosokoneza kutentha (100°C), kuonekera pang'ono, kuwala kochepa, komanso kulimba kochepa, koma zimakhala ndi mphamvu yayikulu. Ndiye, mungadziwe bwanji mtundu wa pepala la PP loletsa moto?
1. Yang'anani kunyezimira kwake pamwamba. Kunyezimira koyipa ndi pulasitiki yobwezerezedwanso.
2. Yang'anirani kulimba kwake. Chipepala cha PP choteteza moto chopanda zinthu zoyaka chili ndi kulimba kwabwino kwambiri ndipo chimatha kupindika pang'ono.
3. Yang'anani pamwamba pa chodulira. Mukadula pulasitiki yobwezerezedwanso, padzakhala zinyalala zosiyanasiyana zamitundu yosiyanasiyana.
4. Yang'anani kuchuluka kwake. Kuchuluka kwa PP polypropylene ndi 0.92 ~ 0.93. Zinthu zonse zomwe zimayandama pamadzi ndi polypropylene.
5. Chipepala cha PP choletsa moto chimatenthedwa ndi kuwotcherera. Utsi umatuluka powotcherera pulasitiki yobwezerezedwanso.
6. Mapulasitiki opangidwanso, omwe amatumizidwanso m'mafakitale, satumiza kuwala bwino.
7. Kulimba, pulasitiki yobwezerezedwanso ndi yoyipa kwambiri.
8. Kuchuluka kwa pepala la PP loletsa moto, liponyeni m'madzi kuti muwone ngati likuyandama pamadzi, madzi ambiri obwezeretsedwanso amamira pansi.
Nthawi yotumizira: Feb-19-2023
