Kayayyaki
Babban yawa polyethylene ko HDPE ƙaramin farashi ne, farin madara, mai ɗaukar zafi mai tsaka-tsaki.Yana da sassauƙa amma ya fi tsauri da ƙarfi fiye da LDPE kuma yana da ƙarfin tasiri mai kyau da juriya mafi girma.Kamar LDPE, yana da kyakkyawan juriya na sinadarai, kyawawan kaddarorin saki, da tururi mai kyau amma mara kyau shingen iskar gas da kaddarorin yanayi.Sauran iyakoki ko rashin lahani sun haɗa da: batun fashewar danniya, mai wahalar haɗawa, mai ƙonewa, da ƙarancin zafin jiki.
Yawanci, polyethylene mai girma ya fi madaidaiciya kuma saboda haka ya fi crystalline fiye da LDPE.Mafi girman crystallinity yana kaiwa zuwa mafi girman zafin sabis har zuwa kusan 130 ° C kuma yana haifar da ɗan ƙaramin juriya.Matsakaicin zafin jiki na sabis yana kusan -40 ° C.
HDPE yana kula da zama mai ƙarfi fiye da sauran fina-finai na polyethylene, wanda shine muhimmiyar mahimmanci ga fakitin da ke buƙatar kula da siffar su.HDPE yana da sauƙin sarrafawa kuma ana iya haɗe shi tare da wasu polymers da/ko ƙari, kamar (filayen da aka yi masa gyaran fuska), sauran polyolefin (LDPE, LLDPE), da pigments don canza ainihin kaddarorin sa.
Aikace-aikace
Ana amfani da fim ɗin HDPE sau da yawa a yawancin aikace-aikace iri ɗaya kamar LDPE da LLDPE kuma a wasu lokuta ana haɗa shi da LDPE don gyara kayan sa.HDPE ya dace sosai don aikace-aikace inda ake buƙatar ƙarfin ƙarfi da ƙarfin matsawa da / ko lokacin da ake buƙatar mafi girma da tsauri.Kamar LDPE, HDPE yana da ingantaccen ƙarfin tasiri da juriya na lalata.
Saboda ƙananan wari, babban juriya na sinadarai da rashin aiki, yawancin maki PE sun dace da aikace-aikacen marufi a ƙarƙashin dokokin FDA.Saboda babban wurin tafasa, yawancin maki za a iya haifuwa a cikin ruwan zãfi.
Abubuwan aikace-aikacen fina-finai na HDPE na yau da kullun sun haɗa da jaka;masu layi;abinci da kayan abinci marasa abinci;fina-finan noma da gine-gine.
A cikin 'yan shekarun nan, HDPE yana samun kaso na kasuwa musamman saboda kaddarorin sa na ƙasa, wanda ke ba da damar yin fina-finai da marufi (watau ƙasa da kayan aiki) waɗanda ke ba da daidaitaccen aiki.
Fina-finan HDPE yawanci suna da kauri 0.0005" zuwa 0.030".Ana samun su a cikin launuka masu haske ko mara kyau.Hakanan ana samun HDPE tare da anti-static, flame retardant, da ƙari na ultraviolet.
Lokacin aikawa: Afrilu-07-2022