Polyethylene (PE) resin ndeye thermoplastic polymers zvinoreva kuti inogona kuumbwa nekupisa uye kunyungudutswa zvakare pasina kurasikirwa nehunhu hwayo hwemukati. Thermoplastics inosiyana nenzira iyi kubva kune thermosets, iyo inochinja zvachose mushure mekuoma.
Polyethylene resin akaiswa mumapoka makuru matatu: low density (LDPE), high density (HDPE), uye ultra-high molecular weight (UHMW-PE). LDPE inoshandiswa kugadzira mabhegi epurasitiki, semuenzaniso; HDPE, yepombi dzemvura; uye, UHMW-PE yezvishandiso zvekurapa. Muzhinji, iyo yakakura density yezvinhu, iyo inowedzera crystalline chimiro chayo. Higher crystalline zvivakwa zvine tembiricha yepamusoro yebasa.
LDPE inotsanangurwa zvakanyanya seyakaderera simba asi yakanyanya ductile nekudaro ichiibvumira kutambanudza pasina kutyora. Iyo yakakurumbira kune akasiyana siyana ekurongedza maapplication kubva kusvina mabhodhoro kusvika kuvhara firimu. HDPE ine simba repamusoro asi yakaderera ductility, ichiita kuti ive inobatsira kune zvigadzirwa zvinofanirwa kuchengetedza chimiro chazvo semagaba emarara. HDPE inoramba ichishanda pa -60°C. UHMW-PE yakasimba kwazvo, ine simba-ku-huremu reshiyo rinosvika kune mamwe masimbi. Kuve nekupokana kwakanyanya kune abrasion, inokodzera maapplication akakosha senge nguva screws uye starwheels emabhodhoro emuchina, mapedhi ekupfeka emajoini ekugadzira, nezvimwe.
Kufanana neakawanda thermoplastics, polyethylene resins inotora unyoro nyore. Ivo havawanzo kuda akakosha ekuomesa hurumende isati yaitwa jekiseni molding kana kumwe kugadzirisa.
Izvo zvinhu zviri muchimiro chayo chinowanzo chena kana nhema uye chinoshanduka kana chakatetepa kune zviyero zvemabhodhoro emukaka nezvimwe zvakadaro. Vatengesi vanogona kugadzirisa dhizaini kuti vawedzere simba rekubvarura, kujeka, kuumbwa, kudhindwa, nezvimwe, sezvinodiwa kuti zvienderane nechikumbiro chiripo.
| Analysis Project | Unhu Index | Mhedzisiro yeYedzo | Kuedza nzira |
|
Granular kuonekwa Tsanga dzeruvara uye tsanga dzemavara matema/k |
≤10 | 0 | SH/T 1541.1-2019 |
| hombe nediki, g/kg | ≤100 | 0 | SH/T 1541.1-2019 |
| Melt mass flow rate (21.6kg), g/10min | 4.8-7.2 | 6.1 | Q/SY DS 0511 |
| Density, kg/m3 | 946-950 | 948.9 | Q/SY DS 0510 |
| Tensile goho kushushikana, MPa | ≥22 | 24.9 | Q/SY DS 0512 |
| Kushushikana mupfungwa panguva yekuzorora, MPa | ≥24 | 42.2 | Q/SY DS 0512 |
| Kushushikana kwesimba panguva yekuzorora,% | ≥450 | 775 | Q/SY DS 0512 |
Polyethylene inogona kugadziriswa nekuputira kuumba, extrusion, jekiseni kuumba uye dzimwe nzira, dzinoshandiswa zvakanyanya mukugadzira firimu rakatetepa, maburi zvigadzirwa, fiber uye zvinodiwa zvezuva nezuva. Zvichingoenda zvakadaro.
(1) Polyethylene (PE) firimu rinoshandiswa zvakanyanya sekurongedza zvinhu zvekudya zvakasiyana, mushonga, makemikari fetiraiza, zvigadzirwa zvemaindasitiri uye firimu rekurima. Inogona zvakare kuwedzererwa kuita firimu recompositi yekurongedza zvinhu zvinorema.
(2) polyethylene hollow zvigadzirwa: yakakwira density polyethylene simba rakakwirira, rakakodzera maburi zvigadzirwa. Inogona kupeperetswa mumabhodhoro, mbiya, magaba, matangi uye zvimwe midziyo. Kana nekukanda mutangi tangi uye tangi yekuchengetera uye mamwe midziyo mihombe
(3) polyethylene pombi uye ndiro yakakodzera kuisa pasi pevhu, tafura uye zvinhu zvekuvaka
(4) polyethylene faibha: inogona kushandiswa semabhururu vheti. Composite zvinhu zvemotokari uye Marine mashandiro.
(5) polyethylene faibha kugadzira bristle sirika, flat sirika kana firimu faibha, inoshandiswa kugadzira tambo, sefa jira, kurongedza jira uye zvichingodaro.
(6) Polyethylene zvakasiyana-siyana: Izvo zvakasiyana-siyana zvinogadzirwa nekuumbwa kwejekiseni zvinosanganisira zuva nezuva zvakasiyana-siyana, maruva ekugadzira, mabhokisi ekutengesa, midziyo miduku, bhasikoro uye zvikamu zvetirakita, izvo zvinoshandiswa mukugadzirwa kwezvikamu zvekugadzirisa.
Kurongedzerwa kwacho kuri mumabhegi epurasitiki anorema 25kg, anogona kutakurwa nechitima kana negungwa ochengetwa mudura rakaoma.
Copyright © Zhongtai Import & Export Co., Ltd Dzese Kodzero Dzakachengetedzwa
