Polyethylene (PE) resins o polymers thermoplastic o lona uiga e mafai ona fausia i le vevela ma toe liusuavai e aunoa ma le aveesea o latou uiga taua. Thermoplastics eseese i lenei auala mai thermosets, lea e oʻo i suiga tumau pe a maeʻa.
Polyethylene resins ua fa'avasegaina i ni vaega tetele se tolu: maualalo le mamafa (LDPE), maualuga maualuga (HDPE), ma ultra-maualuga mole mamafa mamafa (UHMW-PE). LDPE e fa'aaogaina mo le faia o taga fa'atau palasitika, mo se fa'ata'ita'iga; HDPE, mo paipa paipa; ma, UHMW-PE mo masini faafomai. I se tulaga lautele, o le sili atu o le mafiafia o mea, o le sili atu o le tioata o lona fausaga. O fausaga tioata maualuluga e maualuga atu le vevela o auaunaga.
O le LDPE e sili ona faʻamatalaina o le maualalo o le malosi ae sili atu le faʻafefe ma mafai ai ona faʻaloloa e aunoa ma le gau. E ta'uta'ua mo le tele o mea fa'apipi'i fa'apipi'i mai fagu fa'amau e fa'amaufa'ailoga ata. O le HDPE e maualuga atu le malosi ae maualalo le ductility, e faʻaaogaina mo oloa e tatau ona tumau o latou foliga pei o lapisi lapisi. O lo'o tumau pea le fa'aogaina o le HDPE ile -60°C. UHMW-PE e malosi tele, faʻatasi ai ma le malosi-i-mamafa faʻatusatusa e latalata i nisi o uʻamea. O le i ai o le maualuga o le teteʻe atu i abrasion, e talafeagai mo faʻaoga faʻapitoa e pei o sikulima taimi ma starwheels o masini fagu, o pads of joints artificial, etc.
E pei o le tele o thermoplastics, polyethylene resins e faigofie ona mitiia le susu. Latou te le masani ona manaʻomia ni faiga faʻagogo faʻapitoa aʻo leʻi faia le tui poʻo isi gaioiga.
O mea i lona natura masani e masani ona paʻepaʻe pe uliuli ma e faʻafefe pe a manifinifi i le tele o fagu susu ma mea faapena. E mafai e le au fa'atau oloa ona fetuutuuna'i le fa'atulagaina e fa'ateleina ai le malosi o loimata, manino, fa'aogaina, lolomi, ma isi, pe a mana'omia e fetaui ma le talosaga o lo'o i ai.
| Galuega Iloiloga | Lelei Faasino Upu | Tali faʻaiuga | Auala faataitai |
|
Fa'aaliga manino Saito lanu ma fatu lanu uliuli/k |
≤10 | 0 | SH/T 1541.1-2019 |
| tele ma laiti, g/kg | ≤100 | 0 | SH/T 1541.1-2019 |
| Fa'amama fa'amama fa'afefete (21.6kg), g/10min | 4.8-7.2 | 6.1 | Q/SY DS 0511 |
| Malosi, kg/m3 | 946-950 | 948.9 | Q/SY DS 0510 |
| Malosi o le fua, MPa | ≥22 | 24.9 | Q/SY DS 0512 |
| Fa'amālosia mālosi i le malepe, MPa | ≥24 | 42.2 | Q/SY DS 0512 |
| Fa'amama'i ma'i i gau,% | ≥450 | 775 | Q/SY DS 0512 |
O le polyethylene e mafai ona faʻaogaina e ala i le faʻafefeteina, extrusion, tui tui ma isi metotia, faʻaaogaina lautele i le gaosiga o ata manifinifi, oloa gaogao, filo ma mea e manaʻomia i aso uma. Ma faapena atu ai lava.
(1) Polyethylene (PE) ata tifaga o loʻo faʻaaogaina lautele e fai ma mea faʻapipiʻi mo meaʻai eseese, vailaʻau, vailaʻau vailaʻau, oloa gaosi oloa ma ata faʻatoʻaga. E mafai fo'i ona fa'apipi'i i totonu o ata tu'ufa'atasi mo le teuina o mea mamafa.
(2) polyethylene mea ga'o: maualuga density polyethylene malosi e maualuga atu, talafeagai mo oloa ga'o. E mafai ona feula i totonu o fagu, paelo, apa, tane ma isi koneteina. Po'o le lafo i totonu o tane tane ma tane teu ma isi pusa tetele
(3) polyethylene paipa ma ipu e talafeagai mo lalo o le faataatiaga, laulau ma mea faufale
(4) polyethylene fiber: e mafai ona faʻaaogaina e fai ma ofutino pulufana. Mea tu'ufa'atasi mo ta'avale ma le gataifale.
(5) polyethylene fiber e fai ai le siliki bristle, siliki mafolafola poʻo filo ata, faʻaaogaina e fai ai maea, ie faamama, ie afifi ma isi.
(6) Polyethylene miscellany: O mea eseese e gaosia e tui tui e aofia ai mea eseese i aso uma, fugalaau faʻapitoa, pusa faʻaliliu, pusa laiti, uila ma vaega taʻavale, lea e faʻaaogaina i le gaosiga o vaega faʻavae.
O le faʻapipiʻiina o loʻo i totonu o le 25kg taga palasitika, e mafai ona feaveaʻi e ala i nofoaafi poʻo le sami ma teu i totonu o se faleteuoloa mago.
Puletaofia © Zhongtai Import & Export Co., Ltd Aia Tatau uma
