Properties
High density polyethylene kana HDPE mutengo wakaderera, chena mukaka, semi-translucent thermoplastic.Inochinjika asi yakanyanya kuomarara uye yakasimba kupfuura LDPE uye ine simba rekuita zvakanaka uye nepamusoro pepuncture kuramba.Kufanana neLDPE, ine zvakare yakanaka makemikari kuramba, yakanaka kuburitsa zvivakwa, uye yakanaka mhute asi yakashata gasi chinodzivirira uye mamiriro ekunze.Zvimwe zvipingamupinyi kana zvisingabatsiri zvinosanganisira: pasi pekunetseka kwekupwanya, kunetsa kusungirirana, kupfuta, uye kusagona kwekushisa.
Kazhinji, high-density polyethylene yakawedzera mutsara uye nokudaro yakawedzera crystalline kupfuura LDPE.Iyo yakakwira crystallinity inotungamira kune yakakwira huru sevhisi tembiricha inosvika 130 ° C uye inoguma nekumwe kuri nani kunyura.Tembiricha yebasa yakaderera inenge -40°C.
HDPE inoita kunge yakaoma kupfuura mamwe mafirimu epolyethylene, inova hunhu hwakakosha kumapakeji anoda kuchengetedza chimiro chavo.HDPE iri nyore kugadzirisa uye inogona kusanganiswa nemamwe mapolymer uye/kana additives, senge (pamusoro akabatwa) mafirita, mamwe polyolefin (LDPE, LLDPE), uye pigment kuti achinje zvimiro zvayo.
Applications
Firimu reHDPE rinowanzo shandiswa mune zvakawanda zvakafanana zvekushandisa seLDPE neLLDPE uye mune dzimwe nguva rinosanganiswa neLDPE kugadzirisa zvimiro zvayo.HDPE yakanyatsokodzera zvikumbiro panodiwa simba rekuwedzera uye kumanikidza uye / kana kana kuoma kwepamusoro uye kuomarara kuchidikanwa.Kufanana neLDPE, HDPE ine yakanakisa simba rekuita uye kusagadzikana kwekuora.
Nekuda kwekunhuhwirira kwakaderera, kukwirira kwemakemikari kuramba uye inertness, akawanda PE mamakisi akakodzera kurongedza maapplication pasi pemirairo yeFDA.Nekuda kweiyo yakakwira yekubikira, mamakisi mazhinji anogona kucheneswa mumvura iri kufashaira.
Yakajairika HDPE firimu maapplication anosanganisira mabhegi;liners;zvokudya uye nonfood kurongedza;mafirimu ekurima uye ekuvaka.
Mumakore achangopfuura, HDPE yakawana mugove wemusika zvakanyanya nekuda kweiyo yakaderera-gauging zvimiro, izvo zvinobvumira kutetepa mafirimu uye kurongedza (kureva zvishoma zvinhu zvinoshandiswa) zvinounza kuita kwakaenzana.
HDPE mafirimu anowanzo 0.0005" kusvika 0.030" gobvu.Iwo anowanikwa mune translucent kana opaque mavara.HDPE inowanikwawo ne anti-static, flame retardant, uye ultraviolet additives.
Nguva yekutumira: Kubvumbi-07-2022