High ukuminyana polyethylene: isicelo

Okuphansi ukuminyana polyethylene ikhiqizwa kusuka ethylene sebehlanjululwe kanye njengesisusa esisemqoka organometallic aphume ashone triethylaluminum futhi titanium tetrachloride. Ukuze polyethylene e imboni yasekhaya isebenzisa ezahlukeneyo eziningana zobuchwepheshe okuyinto zingafani uhlobo imiklamo, amandla ophendulayo, izindlela ukuze bahlanze polyethylene ku ekwandeni esetshenziswa.

ubuchwepheshe

Ngokuvamile-ke eyenziwa izinyathelo emithathu ilandelana: polymerization of ethylene, ukuhlanzwa yayo kusukela ekwandeni kanye yokugcina omiswe inqubo. Ngemva ibangele ikhambi triethylaluminum futhi titanium tetrachloride e cyclohexane kunezelwa nophethiloli. Ukufuthelana kufika ku-50 C amaphesenti amabili-isixazululo sasithola ophendulayo, lapho uhlelo emoyeni-lift of ethylene wanezela. Eshukumisayo ikhuthaza okuyingxenye mass ethylene ukuze polyethylene polymerization.

Ukuze ususe kulethe kusukela polymer wafakwa ehlungiwe imikhiqizo noqhekeko kanye siphela. I Centrifuge polyethylene wageza kusukela kulethe usebenzisa methanol.

Polyethylene of ingcindezi ongaphakeme emva uhlambulule is wakhama, futhi nalokho kunezelwa into ekuthuthukiseni izinga. Ukuze uthole ukucaciseleka ka isimame esetshenziswa, ethylene glycol kanye sodium nitrophosphate, futhi ukwenza kube shinier, wax sisetshenziswa.

Ekugcineni, i-polyethylene is phansi omiswe bese granulation. Polyethylene of ingcindezi ongaphakeme ikhiqizwa ngesimo granules kanye powder.

Inqawe eyenziwe ongaphakeme ukuminyana polyethylene

Zisetshenziswa ngoba ukufakwa igesi, amapayipi kanye nezinhlelo zamanzi.

Inqawe oluqanjwe eqhubekayo extrusion indlela. Njengoba impahla eluhlaza ukwenziwa polyethylene e elimbudumbudu kuphuma.

Kwezomnotho emazweni asethuthukile zisebenzisa amapayipi ezinjalo cishe zonke izinhlelo.

HDPE amapayipi musa zibulale izinga lamanzi, ngoba izindonga sangaphakathi nokugqwala akuyona kwakhiwa futhi eqoqwe nosawoti wamaminerali.

Okuphansi ingcindezi polyethylene ithole isicelo ku amapayipi izinhlelo, njengoba olumelana izinto nolaka futhi namazinga okushisa aphakeme.

Negesi amapayipi nayo asibhubhi futhi qinani ukusebenza izakhiwo isikhathi eside.

Ukuvikeleka - eliphakeme quality amapayipi kusukela HDPE. Ziyakwazi ukushaqeka nemithi, musa ukubola asenzi nokugqwala, musa crack ngaphansi kwethonya okusezingeni eliphezulu kanye okushisa aphansi. ukuphila inkonzo yabo amashumi eminyaka.

Polyethylene ingcindezi High kuqhathaniswa esithambile futhi nokunwebeka. Izinto lakhe ilungiselelo kuqhathaniswa kwaphela yezinhlayiya ukuthi ngokuyinhloko kuthinta kwabantu bayo. LDPE ukukhiqiza anhlobonhlobo amafilimu. Banezinhliziyo izinga okusezingeni eliphezulu kakhulu, futhi kukho zokufaka impahla kangcono mhlawumbe lowengca lo longatfolakala. It sigcina nokuthi uyaziqinisa iqoqo izakhiwo ezinhle ngisho at okushisa afinyelela ku-degree ayisithupha. izici qualitative we polyethylene musa ukushintsha ngaphansi kwethonya amakhemikhali. Uyakwazi thembeke ukuhlukanisa umkhiqizo kusuka umswakama kanye umhwamuko.