Pulasitiki ya Polypropylene (PP)
* Polypropylene ndi semicrystalline thermoplastic. Ili ndi mphamvu yolimba, mphamvu zamphamvu zamakaniko, komanso imakana zosungunulira zosiyanasiyana zachilengedwe komanso dzimbiri la acid-base.
* Kukana mankhwala kwabwino kwambiri. Mitundu yotetezeka ya chakudya ikupezeka.
* Zinthu zopangidwa ndi pulasitiki za PP kapena zigawo zake
Polypropylene, yomwe chidule chake ndi PP, ndi polima yopangidwa kuchokera ku propylene kudzera mu polymerization reaction. Ndi chinthu choyera, chonga sera chomwe chimawoneka bwino komanso chopepuka. Fomula ya mankhwala (C3H6)n, kuchuluka kwa 0.89 ~ 0.91g/cm3, kutentha koyaka, komwe kumasungunuka kwa 164 ~ 170 ° C, kofewa pa 155 ° C kapena kuposerapo, pogwiritsa ntchito kutentha kwa -30 ~ 140 ° C.
Ndi yolimba ku dzimbiri chifukwa cha asidi, alkali, madzi amchere ndi mitundu yambiri ya zinthu zachilengedwe zosakwana 80℃, ndipo imatha kuwola ikatentha kwambiri komanso ikasungunuka. Imagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikizapo ma CD a ogula, zida zapulasitiki zamagalimoto ndi nsalu.
Kodi mungapange chiyani ndi PP Plastiki?
Polypropylene ndi pulasitiki yopepuka kwambiri pankhani ya kuchuluka kwake. Mawonekedwe ake ndi opanda mtundu komanso opepuka, ndipo monga pulasitiki yodziwika bwino, imagwiritsidwa ntchito kwambiri popaka chakudya, monga mabokosi a Styrofoam, makapu apulasitiki a PP, ndi zina zotero. Polypropylene ikhoza kugawidwa m'magulu asanu akuluakulu malinga ndi momwe imagwiritsidwira ntchito: PP injection molding, PP drawing, PP fiber, PP film, ndi PP pipe.
Nazi zina mwa ntchito za Polypropylene (pp)
- Zipangizo zachipatala
- Zigawo zamagalimoto
- Zidebe za chakudya
- Kulongedza
- Ziwiya zophikira mbale
- Mabotolo
- Zovala
- chidole
- Zipewa za mabotolo
- Ulusi wa zovala
- Zopangidwa ndi pulasitiki
- Zipangizo zomangira
- Zogulitsa za ogula
- Mipando ya m'munda
- Zipangizo zazing'ono zapakhomo
Makhalidwe a Polypropylene (PP)
Kukana mankhwala: Maziko ndi ma asidi osungunuka sagwirana ndi PP, zomwe zimapangitsa kuti chidebecho chikhale choyenera kusungiramo zakumwa zotere (monga zotsukira, zinthu zothandizira oyamba, ndi zina zotero).
Kutanuka ndi kulimba: PP ndi yotanuka mkati mwa njira inayake yopatuka ndipo imasinthidwa pulasitiki kumayambiriro kwa njira yosinthira popanda kusweka, kotero nthawi zambiri imaonedwa ngati chinthu "cholimba".
Kukana kutopa: PP imasunga mawonekedwe ake itatha kupotoka ndi kupindika kwambiri. Kapangidwe kameneka ndi kofunikira kwambiri popanga ma hinge osunthika.
Kuteteza: Zipangizo za PP zimakhala ndi mphamvu zamagetsi zambiri ndipo ndi zinthu zotetezera kutentha.
Kutumiza: Kungapangidwe mu mitundu yowonekera bwino, koma nthawi zambiri kumapangidwa mu mitundu yosawoneka bwino mwachilengedwe yokhala ndi kutumizira kwina. Ngati pakufunika kutumizira kwakukulu, acrylic kapena PC iyenera kusankhidwa.
Kodi zinthu za PP zimapangidwa bwanji?
Monga mapulasitiki ena, Polypropylene (PP) imayamba ngati "gawo" (gulu lopepuka) kuchokera ku distillation ya mafuta a hydrocarbon ndipo imasakanikirana ndi ma catalyst ena kuti apange mapulasitiki kudzera mu polymerization kapena polycondensation reactions.
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Njira Yopangira Polypropylene (PP):
Ufa womwe wapezeka umatumizidwa ku ma silo a ufa kenako n’kusinthidwa kukhala ma pellets omwe ali ndi mitundu yonse ya
zowonjezera zomwazikana bwino.
Kubwezeretsanso pulasitiki ya polypropylene (PP) ndi kuteteza chilengedwe
Pamene polypropylene ibwezeretsedwanso, imachepetsa kugwiritsa ntchito zinthu zochepa monga mafuta ndi mpweya wa propane. Pafupifupi 8% ya mafuta padziko lonse lapansi (pafupifupi matani 400 miliyoni) amagwiritsidwa ntchito popanga mapulasitiki achikhalidwe, omwe 4% amagwiritsidwa ntchito ngati "zakudya" ndipo ena 4% amagwiritsidwa ntchito popanga. Ngati mapulasitiki apangidwa kuchokera ku mapulasitiki obwezeretsedwanso, kugwiritsa ntchito mphamvu kungachepetsedwe ndi 88%. Chifukwa chake, kubwezeretsanso mapulasitiki a polypropylene ndikoteteza chilengedwe!
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