Katundu
High kachulukidwe polyethylene kapena HDPE ndi mtengo wotsika, yoyera yamkaka, thermoplastic thermoplastic theka-translucent.Ndi yosinthika koma yolimba komanso yamphamvu kuposa LDPE ndipo imakhala ndi mphamvu zowoneka bwino komanso kukana koboola kwambiri.Monga LDPE, ilinso ndi kukana kwamankhwala kwabwino, zotulutsa zabwino, komanso nthunzi yabwino koma zotchinga bwino za gasi komanso nyengo.Zolepheretsa zina kapena zovuta zikuphatikizapo: kupsinjika maganizo, zovuta kugwirizanitsa, kuyaka, ndi kutentha kosakwanira.
Nthawi zambiri, polyethylene yochuluka kwambiri imakhala yozungulira kwambiri ndipo motero imakhala yowala kwambiri kuposa LDPE.Kuwala kokwera kwambiri kumabweretsa kutentha kwambiri kwa ntchito mpaka pafupifupi 130 ° C ndipo kumabweretsa kukana kwabwinoko.Kutentha kwapansi kwa ntchito ndi pafupifupi -40 ° C.
HDPE imakhala yolimba kuposa mafilimu ena a polyethylene, omwe ndi khalidwe lofunika kwambiri la phukusi lomwe limayenera kusunga mawonekedwe awo.HDPE ndiyosavuta kukonza ndipo imatha kusakanikirana ndi ma polima ena ndi/kapena zowonjezera, monga zodzaza (zopangidwa pamwamba), polyolefin ina (LDPE, LLDPE), ndi ma pigment kuti asinthe zinthu zake zoyambira.
Mapulogalamu
Kanema wa HDPE nthawi zambiri amagwiritsidwa ntchito m'mapulogalamu ambiri monga LDPE ndi LLDPE ndipo nthawi zina amaphatikizidwa ndi LDPE kuti asinthe mawonekedwe ake.HDPE ndiyoyenererana bwino ndi ntchito zomwe zimafunikira kulimba kwambiri komanso kukakamiza komanso/kapena kuuma kwakukulu ndi kulimba kumafunika.Monga LDPE, HDPE ili ndi mphamvu zabwino kwambiri komanso kukana dzimbiri.
Chifukwa cha fungo lochepa, kukana kwamphamvu kwamankhwala komanso kusakhazikika, magiredi ambiri a PE ndi oyenera kuyika mapulogalamu pansi pa malamulo a FDA.Chifukwa cha kuwira kwakukulu, magiredi ambiri amatha kutsukidwa m'madzi otentha.
Mafilimu amtundu wa HDPE amaphatikizapo matumba;liners;zakudya ndi zakudya zopanda chakudya;mafilimu aulimi ndi zomangamanga.
M'zaka zaposachedwa, HDPE yapeza gawo la msika makamaka chifukwa cha zinthu zotsika mtengo, zomwe zimalola mafilimu ocheperako komanso kulongedza (mwachitsanzo, zinthu zochepa zomwe zimagwiritsidwa ntchito) zomwe zimapereka magwiridwe antchito ofanana.
Mafilimu a HDPE nthawi zambiri amakhala 0.0005" mpaka 0.030" wandiweyani.Amapezeka mumitundu yowoneka bwino kapena yowoneka bwino.HDPE imapezekanso ndi anti-static, retardant flame, ndi ultraviolet zowonjezera.
Nthawi yotumiza: Apr-07-2022