PE: Polyethylene PE resin is a non-poison and odorless white tinthu kapena ufa, wokhala ndi mkaka woyera mawonekedwe ndikumverera kofewa; imatha kuyaka, yokhala ndi cholozera cha oxygen chokha cha 17.4%, utsi wotsika ndikungotuluka panthawi yoyaka, wachikaso pamoto ndi wabuluu pansi pake.
Fungo la parafini; mayamwidwe otsika amadzi (polyethylenePe polyethylene PE ili nditimagulu tating'onoting'ono tating'onoting'ono timagulu ta ether mu molekyulu, chifukwa chake kulimbana ndi nyengo ya PE sikuli bwino, dzuwa ndi mvula zimayambitsa ukalamba, zimafunikira kuwonjezera ma antioxidants, zotchingira kuwala kuti zisinthe Kukhazikika kwa matenthedwe a polyethylene PE mumagetsi osakanikirana kwambiri zabwino, ndi kutentha kuwonongeka angafikire 300â „ƒ kapena kuposa; koma kutentha kukapitilira 50â „ƒ m'malo otentha, mpweya wotentha umapangitsa kuti zinthu zisinthe, chifukwa chake ndikofunikira kuwonjezera ma antioxidants kuti musinthe. Mwachitsanzo, antioxidant 1010 wamkulu ndi wothandizira antioxidant 168; kutentha kwa PE mumlengalenga sikuli bwino, ndipo kudzasintha ndikukula kwamphamvu yama cell ndi crystallinity; koma kutentha kotsika kwa PE ndikwabwino kwambiri, ndipo kutentha kwake kotsika kotsika kumatsika -50â „ƒ, ndikuwonjezeka kwama molekyulu, otsika kwambiri amatha kufikira -140â„ ƒ; Kutentha kwa PE ndikokwera, HDPE> LLDPE> LDPE; koyefishienti yowonjezera ya PE ndi yayikulu, yomwe ndi yayikulu pakati pa mitundu ya pulasitiki, komanso yayikulu Kufikira (20 ~ 24) × 10 -5 -5 K -1 -1, LDPE> LLDPE> HDPE.
1. Low-kachulukidwe polyethylene LLDPE Low osalimbapolyethylene LLDPE: Unyinji wa polyethylene wotsika kwambiri uli ndi nthambi zazitali komanso zazifupi komanso crystallinity Low, kulemera kwake kumakhala 50,000 mpaka 500,000, mkaka wonyezimira woyera wonyezimira, wopanda poizoni, malo ochepetsa, kusinthasintha kwabwino, kukana kwamphamvu, zabwino otsika kutentha kukana, ndipo akhoza kukhala pa -60â „ƒ Kugwira ntchito -80â„ ƒ, chabwino kutchinjiriza kwamagetsi.
2. LDPE ili ndi mphamvu zamagetsi, kutentha pang'ono, kulimbana ndi zovuta zachilengedwe, kulumikizana, ndi kusindikiza, ndipo imafuna chithandizo chapamwamba kuti chikwaniritse magwiridwe ake. LDPE Kutengera kwamadzi kotsika kwambiri, pafupifupi mayamwidwe amadzi, kukhazikika kwamankhwala, monga kukhazikika ku zidulo, alkalis, mchere, ndi zosungunulira zachilengedwe. Kutsekemera kwakukulu kwa kaboni dayokisaidi ndi mafuta onunkhira, koma kuperewera koyipa kwamadzi ndi mpweya. Kutentha kosavuta, Kutentha kumakhala ndi fungo la parafini, ndikosavuta kunyoza ndikusintha utoto pansi pakuchita kwa dzuwa ndi kutentha.
3. Mkulu-kachulukidwe polyethylene HDPE:Mkulu osalimba polyethylene HDPE: Ndi wonyezimira wonyezimira wonyezimira wonyezimira wonyezimira waxy olimba, kuchuluka kwa nthambi za HDPE ndi kocheperako, ndipo mphamvu yamagulu ndiyothina, kotero kuti kachulukidwe kake kali, mawonekedwe ake ndi okwera. HDPE imakhala ndi kutentha kwambiri, kulimbana ndi mafuta, kuyimitsidwa kwa nthunzi komanso kusokonekera kwa chilengedwe, kutchinjiriza kwamagetsi, kukana kwamphamvu komanso kuzizira. HDPE ili ndi mphamvu ndipo magwiridwe antchito okalamba aposa a PP, ndipo kutentha kogwira ntchito ndikokwera kuposa kwa PVC ndi LDPE. HDPE imakhala ndi mayamwidwe ang'onoang'ono amadzi, osakhala a poizoni, osasunthika kwambiri pamakina, ndipo kanemayo ali ndi mwayi wochepa wothira madzi ndi mpweya.
