Iipleyiti zePolyethylene oku kungenxa yokuba amatyathanga eemolekyuli ngamanye amaxesha avala iiphotocrystals zawo, eshiya ummandla omkhulu we-amorphous kwi-biomolecule, iipleyiti ze-polyethylene zinokufunxa impembelelo enkulu yamandla e-kinetic. Ngokutsho kwereferensi, indlela ye-astm- D256 isetyenziselwa ukumisela impembelelo yexabiso lamandla oxinzelelo lweplastiki. Ngokuthelekisa, amandla acinezelayo ebhodi ye-polyethylene anokwahlulwa abe yi-polycarbonate, i-polycarbonate iyaziwa ngokumelana nempembelelo yayo, kwaye ingasetyenziswa njengemveliso yerabha ngokubanzi.
Ukuxhathisa i-friction ye-polyethylene plate iphantsi kakhulu. Ibhodi ye-polyethylene inokumelana nokunxiba okungcono, ukuxhathisa okuphantsi kwe-friction kunye nokuzinza kakuhle. Yimpahla ekrwada yephupha ye-bushing, roller kunye ne-bushing. Ukukhethwa kwebhodi ye-polyethylene njenge-friction pair, kungekhona nje ukuphucula ubomi benkonzo eyonakalisiweyo yezibonelelo, ibhodi ye-polyethylene kwaye inokugcina izixhobo.
Ibhodi ye-polyethylene inokumelana kakuhle nemichiza. Ibhodi ye-Polyethylene inokumelana neekhemikhali ezingcono. Ukongeza kwi-asidi ye-nitric egxininisiweyo kunye ne-sulfuric acid, ibhodi ye-polyethylene ayilula ukuba ifakwe kuyo nayiphi na isisombululo se-alkaline okanye esine-acidic. Ingasetyenziswa njenge dilute hydrochloric acid kwi 80℃, kwisodium cyanide & LT; Hydrochloric acid & lt; I-75% egudileyo, ingasetyenziswa namanzi kunye nokucoca ulwelo. Njengoko wonke umntu uyazi, ibhodi ye-polyethylene ilula kakhulu ukuvuvukala kwi-aliphatic hydrocarbons okanye i-halogenates (ingakumbi kwiqondo lokushisa eliphezulu eliqhubekayo), ngoko kufuneka kuhlawulwe ingqalelo ekusebenziseni kwayo.
Ukuphucula ukuxhatshazwa kwebhodi le-polyethylene. Ukuchasana nokugqoka okuphezulu kungenye yeempawu ezilingayo, ibhodi ye-polyethylene kwiiprojekthi ezininzi ekusebenziseni ixabiso eliphambili lokusetyenziswa. Ngeli nqanaba, yonke ibhodi yeplastiki ye-polyethylene inokumelana nokunxiba kakuhle, kwaye kunye nezixhobo ezininzi zetsimbi azikho rhoqo njengangaphambili. Ngokuphuculwa kobunzima bemolekyuli yoxinzelelo oluphezulu lwe-polyethylene, ukunyanzeliswa kokugqoka kolu hlobo lwezinto kuphuculwe. Ukuchaswa kwempembelelo yebhodi ye-polyethylene. Amandla oxinzelelo lweplate ye-polyethylene ihambelana nobunzima bayo bemolekyuli. Xa ubunzima bemolekyuli bungaphantsi kwezigidi ezi-2, amandla oxinzelelo lwe-polyethylene ayanda ngokunyuka kobunzima bemolekyuli, kwaye ixabiso eliphezulu limalunga nezigidi ezi-2. Ngeli xesha, amandla oxinzelelo lwempembelelo aya kuncipha ngokunyuka kobunzima bemolekyuli.
Ixesha lokuposa: May-31-2022
