LDPE, kapena polyethylene yotsika kwambiri, ndi pulasitiki yotchuka yomwe imagwiritsidwa ntchito pazinthu zosiyanasiyana, kuphatikiza zoyikapo.LDPE imadziwika ndi kusinthasintha kwake, mphamvu, komanso kumveka bwino, zomwe zimapangitsa kukhala chisankho chabwino kwambiri pazogwiritsa ntchito zosiyanasiyana.Chimodzi mwazinthu zodziwika bwino za LDPE ndi filimu ya LDPE yochepetsera kutentha, yomwe imagwiritsidwa ntchito kwambiri popanga ma CD.Ngati mukufuna kudziwa zambiri za momwe LDPE imapangidwira komanso gawo la opanga mafilimu a LDPE pochita izi, pitilizani kuwerenga.
Njira yopangira LDPE imayamba ndikutulutsa ethylene (gasi wa hydrocarbon) kuchokera ku gasi lachilengedwe kapena naphtha.Ethylene ikapezeka, imalowa munjira yotchedwa polymerization, yomwe imaphatikizapo kulumikiza mamolekyu ambiri a ethylene kuti apange maunyolo aatali a LDPE.The polymerization ndondomeko angathe kuchitidwa ndi njira zosiyanasiyana, kuphatikizapo mkulu-anzanu polymerization kapena ufulu ankafuna kwambiri polymerization, amene ambiri ntchito kubala LDPE.
Pambuyo polima, LDPE imasungunuka ndikupanga mawonekedwe omwe amafunidwa, monga filimu, kudzera munjira yotchedwa extrusion.LDPE kutentha shrink filimu, makamaka, amapangidwa pogwiritsa ntchito mawonekedwe apadera a extrusion yotchedwa blown film extrusion.Pochita izi, LDPE imasungunuka ndikukakamizidwa kudzera mukufa kozungulira, komwe kumapanga chubu cha pulasitiki yosungunuka.Kenako chubucho chimafufutidwa, kapena "kuwombedwa," ndi mpweya kuti utambasule ndikuwupanga kukhala makulidwe ndi m'lifupi mwake.Kenako filimuyo imazizidwa ndikuyikidwa pamipukutu ikuluikulu kuti ipitirire kukonzedwa ndi kugawa.
Kanema wa LDPE akapangidwa, nthawi zambiri amagulitsidwa kwa opanga mafilimu a LDPE, omwe amatha kukonzanso zinthuzo ndikuzisintha kukhala mitundu yosiyanasiyana yazonyamula, kuphatikiza filimu yochepetsa kutentha.Opanga mafilimu a LDPEimagwira ntchito yofunika kwambiri pakupanga zinthu popereka ntchito zowonjezera, monga kusindikiza, kuwongolera, ndikusintha filimu ya LDPE kukhala zinthu zomalizidwa zomwe zimakwaniritsa zosowa za makasitomala awo.
Kuphatikiza pa kupanga ndi kukonza filimu ya LDPE,Opanga mafilimu a LDPEalinso ndi udindo wowonetsetsa kuti zinthuzo n'zogwirizana komanso kuti n'zogwirizana.Izi zimaphatikizapo kuyezetsa mozama ndi njira zowongolera kuti muwonetsetse kuti filimu ya LDPE ikukwaniritsa zofunikira ndi miyezo yomwe ikuyenera kugwiritsidwa ntchito.Opanga mafilimu a LDPE amathanso kugwira ntchito limodzi ndi makasitomala awo kuti apereke ukatswiri waukadaulo ndi chithandizo, kuwathandiza kusankha mtundu woyenera wa filimu ya LDPE pazosowa zawo zonyamula.
Pomaliza, LDPE ndi zinthu zosunthika komanso zogwiritsidwa ntchito kwambiri zapulasitiki zomwe zimapangidwa kudzera munjira ya polymerization ndi extrusion.Opanga mafilimu a LDPE amatenga gawo lofunikira pakupanga ndi kukonza filimu ya LDPE, kuphatikiza kupangaLDPE kutentha shrink filimu.Popereka mautumiki owonjezera komanso kuwonetsetsa kuti zinthu zili bwino, opanga mafilimu a LDPE amathandizira kupanga bwino komanso kwapamwamba kwambiri kwazinthu zopangira ma LDPE.Ngati mukusowa filimu ya LDPE pazosoweka zanu, onetsetsani kuti mukuyanjana ndi wopanga mafilimu odziwika bwino a LDPE omwe angakwaniritse zomwe mukufuna.
Nthawi yotumiza: Feb-27-2024