imikhiqizo

I-polyethylene ye-low density yefilimu ebunjiwe,
Ibanga lefilimu le-LDPE, ldpe ukukhiqizwa kwefilimu,

I-Low-density polyethylene (LDPE) iyinhlaka yokwenziwa esebenzisa inqubo yokucindezela okuphezulu nge-polymerization yamahhala ye-ethylene futhi ngenxa yalokho ibizwa nangokuthi "i-polyethylene ephezulu yokucindezela".Njengoba iketango layo lamangqamuzana linamagatsha amaningi amade namafushane, i-LDPE ine-crystalline encane kune-high-density polyethylene (HDPE) futhi ukuminyana kwayo kuphansi.Ifaka ukukhanya, okuguquguqukayo, ukumelana okuhle kokuqhwa kanye nokumelana nomthelela.I-LDPE izinzile kumakhemikhali.Inokumelana okuhle nama-acids (ngaphandle kwama-acid oxidizing aqinile), i-alkali, usawoti, izakhiwo ezinhle kakhulu zokufaka ugesi.Izinga layo lokungena komhwamuko liphansi.I-LDPE ine-fluidity ephezulu kanye nokucutshungulwa okuhle.Ilungele ukusetshenziswa kuzo zonke izinhlobo zezinqubo zokucubungula i-thermoplastic, njengokubunjwa komjovo, ukubumba kwe-extrusion, ukubunjwa kwe-blow, i-rotomolding, i-coating, igwebu, i-thermoforming, i-hot-jet welding kanye ne-thermal welding.

Isicelo

I-LDPE isetshenziselwa ngokuyinhloko ukwenza amafilimu.Isetshenziswa kabanzi ekukhiqizeni ifilimu yezolimo (ifilimu yokuhlanganisa ifilimu kanye nefilimu echithiwe), ifilimu yokupakisha (ukuze isetshenziselwe ukupakisha amaswidi, imifino nokudla okuqandisiwe), ifilimu ephephethwayo yokupakisha uketshezi (ozosetshenziswa ekupakisheni ubisi, isoso yesoya, ijusi, ubisi lwebhontshisi nobisi lwesoya), izikhwama zokupakisha ezisindayo, ifilimu yokupakisha enciphayo, ifilimu enwebekayo, ifilimu ye-lining, ifilimu yesakhiwo, ifilimu yokupakisha yezimboni enenhloso ejwayelekile kanye nezikhwama zokudla.

I-LDPE isetshenziswa kabanzi ekukhiqizeni i-wire & cable insulation sheath.I-LDPE exhunywe ngokuphambana iyinto eyinhloko esetshenziswa kungqimba lokufakwa kwamakhebula anamandla kagesi aphezulu.

I-LDPE iphinde isetshenziswe ekukhiqizeni imikhiqizo ebunjwe ngomjovo (njengezimbali zokwenziwa, amathuluzi ezokwelapha, umuthi nezinto zokupakisha zokudla) kanye namashubhu abunjwe ngokukhishwa kwe-extrusion, amapuleti, izintambo ezinezintambo nezintambo kanye nemikhiqizo yepulasitiki enephrofayili.

I-LDPE iphinde isetshenziselwe ukwenza imikhiqizo engenalutho ebunjiwe njengeziqukathi zokubamba ukudla, imithi, izimonyo nemikhiqizo yamakhemikhali, namathangi.

Iphakheji, Isitoreji kanye Nezokuthutha

Ukukhethwa kwe-polyethylene okubunjwe ngefilimu impahla

1. Izinto zokusetshenziswa ezikhethiwe kufanele zifuthwe izinhlayiya zenhlaka ye-polyethylene, equkethe inani elifanele le-ejenti eshelelayo,

Qinisekisa ukuvulwa kwefilimu.

2 resin particle melt index (MI) ayikwazi ukuba nkulu kakhulu, melt index (MI) inkulu kakhulu, bese ncibilikisa inhlaka

I-viscosity incane kakhulu, ububanzi bokucubungula buncane, izimo zokucubungula zinzima ukulawula, ifilimu eyenza impahla ye-resin impofu, akulula.

Ukucubungula kufilimu;Ngaphezu kwalokho, inkomba ye- melt (MI) inkulu kakhulu, ukusabalalisa kwesisindo se-polymer esihlobene ne-polymer kuncane kakhulu, ifilimu encane

Umpofu ngamandla.Ngakho-ke, inkomba encane yokuncibilika (MI) kanye nokusabalalisa okubanzi kwesisindo samangqamuzana kufanele kukhethwe

Ayikwazi ukuhlangabezana nezidingo zokusebenza zefilimu kuphela, kodwa futhi iqinisekise izici zokucubungula ze-resin.

Ifilimu ye-polyethylene ebunjiwe ngokuvamile isebenzisa inkomba yokuncibilika (MI) ebangeni le-polyethylene engu-2 ~ 6g/10min

Izinto zokusetshenziswa.