Iipropati
I-polyethylene ephezulu yoxinaniso okanye i-HDPE yindleko ephantsi, i-milky white, i-semi-translucent thermoplastic.Ibhetyebhetye kodwa yomelele ngakumbi kwaye yomelele kune-LDPE kwaye inamandla anempembelelo entle kunye nokumelana nokugqabhuka okuphezulu.Njenge-LDPE, ikwanazo ukumelana neekhemikhali ezilungileyo, iipropathi ezilungileyo zokukhupha, kunye nomphunga olungileyo kodwa umqobo wegesi ongalunganga kunye neempawu zemozulu.Eminye imida okanye ukungalungi kubandakanya: phantsi koxinzelelo lokuqhekeka, kunzima ukubopha, ukutsha, kunye nobushushu obuphantsi.
Ngokuqhelekileyo, i-polyethylene yoxinaniso oluphezulu inomgca ngakumbi kwaye ngenxa yoko iyikristale ngakumbi kune-LDPE.Ubucwebe obuphezulu bukhokelela kubushushu benkonzo obuphezulu ukuya kuthi ga kwi-130°C kwaye kukhokelela ekuxhathiseni okukhasayo.Ubushushu benkonzo esezantsi bumalunga ne -40°C.
I-HDPE ithande ukuba lukhuni kunezinye iifilimu ze-polyethylene, eziluphawu olubalulekileyo lweepakethe ezifuna ukugcina imilo yazo.I-HDPE kulula ukusetyenzwa ngayo kwaye inokudityaniswa nezinye iipolymers kunye/okanye izongezo, ezifana nezizalisi (ezinyangwayo phezu komhlaba), enye i-polyolefin (i-LDPE, i-LLDPE), kunye nee-pigments ukuguqula iimpawu zayo ezisisiseko.
Usetyenziso
Ifilimu ye-HDPE isoloko isetyenziswa kwiinkqubo ezininzi ezifanayo njenge-LDPE kunye ne-LLDPE kwaye kwezinye iimeko idityaniswa ne-LDPE ukuguqula iimpawu zayo.I-HDPE ifaneleka kakuhle kwizicelo apho ukuqina okukhulu kunye noxinzelelo olufunekayo kunye / okanye xa ukuqina okuphezulu kunye nokuqina kuyadingeka.Njenge-LDPE, i-HDPE inamandla amakhulu empembelelo kunye nokumelana nomhlwa.
Ngenxa yevumba eliphantsi, ukuchasana kweekhemikhali eziphezulu kunye nokungangeni, amaninzi amabakala e-PE afanelekile ukupakisha izicelo phantsi kwemimiselo ye-FDA.Ngenxa yeqondo eliphezulu lokubilisa, amabakala amaninzi anokuvalwa inzala emanzini abilayo.
Izicelo zefilimu ze-HDPE eziqhelekileyo ziquka iingxowa;iilayini;ukupakishwa kokutya nokungatyi;iifilimu zezolimo nezokwakha.
Kwiminyaka yakutshanje, i-HDPE ifumene isabelo semarike ikakhulu ngenxa yeempawu zayo zokulinganisa i-down-gauging, ezivumela iifilimu ezincinci kunye nokupakishwa (okt kusetyenziswa izinto ezincinci) ezinikezela ukusebenza ngokulinganayo.
Iifilimu ze-HDPE zihlala ziyi-0.0005" ukuya kwi-0.030" ubukhulu.Zifumaneka ngemibala eguquguqukayo okanye e-opaque.I-HDPE ikwafumaneka nge-anti-static, i-flame retardant, kunye ne-ultraviolet additives.
Ixesha lokuposa: Apr-07-2022