Wanne abu ya fi kyau, PET ko PP?

Idan aka kwatanta da PET da kayan PP, PP zai zama mafi girma a cikin aiki.
1. Bambanci daga ma'anar
PET(Polyethylene terephthalate) sunan kimiyya shine polyethylene terephthalate, wanda akafi sani da guduro polyester, abu ne na guduro.
PP(polypropylene) sunan kimiyya shine polypropylene, wanda shine polymer da aka samar ta hanyar ƙari polymerization na propylene, kuma shi ne resin roba na thermoplastic.
2.Daga sifofin bambancin
(1) PET
①PET ne mai madara fari ko haske rawaya sosai crystalline polymer tare da santsi da kuma m surface.
②PET abu yana da kyau juriya gajiya, abrasion juriya da girma da kwanciyar hankali, low lalacewa da high taurin, lankwasawa ƙarfi na 200MPa, da kuma na roba modulus na 4000MPa.
③A PET abu yana da kyau kwarai high da low zafin jiki juriya yi, wanda za a iya amfani da na dogon lokaci a cikin zafin jiki kewayon 120 ° C, kuma zai iya jure high zafin jiki na 150 ° C don gajeren lokaci amfani da ƙananan zafin jiki na -70 °. C.
④ Ethylene glycol da aka yi amfani da shi wajen samar da PET yana da ƙananan farashi da babban farashi.
⑤ Kayan PET ba mai guba ba ne, yana da kyakkyawar kwanciyar hankali ga sinadarai, kuma yana da juriya ga raunin acid da kaushi, amma ba ya jure nutsewa cikin ruwan zafi da alkali.
(2) PP
①PP wani farin waxy abu ne mai haske da haske. Shi ne mafi sauƙi nau'in resins da aka saba amfani da su.
② PP kayan yana da kyawawan kaddarorin inji da kyakkyawan juriya na zafi, kuma ci gaba da amfani da zafin jiki na iya kaiwa 110-120 ° C.
③PP abu yana da kyakkyawan kwanciyar hankali na sinadarai kuma baya hulɗa tare da yawancin sinadarai sai dai masu karfi masu ƙarfi.
④ PP abu yana da zafin narkewa mafi girma da ƙarfin ƙarfi, kuma gaskiyar fim ɗin ya fi girma.
⑤ PP kayan aiki yana da kyakkyawan rufin lantarki, amma yana da sauƙin tsufa kuma yana da ƙarfin tasiri mara kyau a ƙananan zafin jiki.
3. Bambance-bambancen amfani
Ana amfani da PET sosai, kamar jujjuya cikin fiber polyester, wato, polyester; a matsayin filastik, ana iya hura shi cikin kwalabe daban-daban; kamar sassan lantarki, bearings, gears, da dai sauransu.
Ana amfani da kayan PP sosai wajen samar da allurakayayyakin gyare-gyare, fina-finai, bututu, faranti, zaruruwa, sutura, da dai sauransu, da kayan aikin gida, tururi, sinadarai, gini, masana'antar haske da sauran fannoni.