I-Polyethylene (PE) ii-resin zi-polymers ze-thermoplastic ezithetha ukuba zinokuthi zenziwe ngobushushu kwaye ziphinde zinyibilike ngaphandle kokulahlekelwa iimpawu zazo zangaphakathi. I-Thermoplastics ihluke ngolu hlobo ukusuka kwi-thermosets, ehamba ngokusisigxina emva kokuqina.
Iinreyi zePolyethylene zihlelwe ngokwamaqela amathathu amakhulu: ubuninzi obuphantsi (LDPE), ubuninzi obuphezulu (HDPE), kunye ne-ultra-high high molecular weight (UHMW-PE). I-LDPE isetyenziselwa ukwenza iingxowa zokuthenga zeplastiki, umzekelo; I-HDPE, kwimibhobho yokukhupha; kunye, UHMW-PE kwizixhobo zonyango. Ngokubanzi, ubuninzi bezinto eziphathekayo, ngakumbi i-crystalline isakhiwo sayo. Izakhiwo zekristali eziphakamileyo zinamaqondo obushushu enkonzo aphezulu.
I-LDPE ichazwa ngcono njengamandla aphantsi kodwa i-ductile ephezulu ngaloo ndlela ivumela ukuba yolule ngaphandle kokwaphuka. Iyathandwa kwiinkqubo ezahlukeneyo zokupakisha ukusuka kwiibhotile zokukhama ukuya kwifilimu yokutywina. I-HDPE inamandla aphezulu kodwa i-ductility ephantsi, iyenza ibe luncedo kwiimveliso ekufuneka zigcine uhlobo lwazo olufana neetoti zenkunkuma. I-HDPE ihlala isebenza kwi- -60°C. I-UHMW-PE yomelele kakhulu, inamandla-to-weight ratios esondelayo kwezinye iintsimbi. Ukuba nokuchasana okuphezulu kwi-abrasion, ifanelekile kwizicelo ezikhethekileyo ezifana nezikrufu zexesha kunye neenkwenkwezi zeenkwenkwezi zoomatshini beebhotile, iipads zokugqoka zamalungu okufakelwa, njl.
Njengazo ezininzi ze-thermoplastics, i-polyethylene resins ifunxa ngokulula ukufuma. Abafuni ngokuqhelekileyo iinkqubo zokomisa ezikhethekileyo ngaphambi kokubumba isitofu okanye enye inkqubo.
Izinto ezikwimo yazo yendalo zihlala zimhlophe okanye zimnyama kwaye ziguquguquka xa zincitshiswe kwimilinganiselo yeebhotile zobisi kunye nokunye. Ababoneleli banokuhlengahlengisa ukuqulunqwa ukuze banyuse amandla okukrazula, ukungafihli, ukumila, ukuprintwa, njl.njl., njengoko kuyimfuneko ukuze kuhambelane nesicelo esikhoyo.
| Iprojekthi yoHlalutyo | Isalathiso soMgangatho | Iziphumo zovavanyo | Indlela yovavanyo |
|
Ukubonakala kweGranular Iinkozo ezinombala kunye neenkozo ezimnyama/k |
≤10 | 0 | SH/T 1541.1-2019 |
| ezinkulu nezincinci, g/kg | ≤100 | 0 | SH/T 1541.1-2019 |
| Ukunyibilika ubunzima bokuhamba (21.6kg), g/10min | 4.8-7.2 | 6.1 | Q/SY DS 0511 |
| Ubuninzi, kg/m3 | 946-950 | 948.9 | Q/SY DS 0510 |
| Ukuxinezeleka kwesivuno, iMPa | ≥22 | 24.9 | Q/SY DS 0512 |
| Uxinzelelo loxinzelelo ngexesha lekhefu, iMPa | ≥24 | 42.2 | Q/SY DS 0512 |
| Ukuxinezeleka ngexesha lekhefu, % | ≥450 | 775 | Q/SY DS 0512 |
I-polyethylene inokucutshungulwa ngokubunjwa kokuvuthela, i-extrusion, ukubunjwa kwesitofu kunye nezinye iindlela, ezisetyenziswa ngokubanzi ekwenzeni ifilimu ebhityileyo, iimveliso ezingenanto, iintsinga kunye neemfuno zemihla ngemihla. Kwaye nangokunjalo.
(1) Ifilimu yePolyethylene (PE) isetyenziswa ngokubanzi njengezinto zokupakisha ukutya okuhlukahlukeneyo, amayeza, isichumisi samachiza, iimveliso zoshishino kunye nefilimu yezolimo. Inokukhutshelwa kwakhona kwifilimu edibeneyo yokupakisha izinto ezinzima.
2 Ingavuthelwa kwiibhotile, imigqomo, iitoti, iitanki kunye nezinye izikhongozeli. Okanye ngokuphosa itanki yetanki kunye netanki yokugcina kunye nezinye izitya ezinkulu
(3) umbhobho we-polyethylene kunye nepleyiti zifanelekile ukubeka phantsi komhlaba, itafile kunye nezinto zokwakha
(4) ifayibha yepolyethylene: ingasetyenziswa njengeevesti zembumbulu. Izixhobo ezihlanganisiweyo zokusebenza kweemoto kunye nezaseLwandle.
(5) i-polyethylene fiber ukwenza i-silk ye-bristle, i-silk flat okanye i-fiber yefilimu, esetyenziselwa ukwenza intambo, ilaphu lokucoca, ilaphu lokupakisha njalo njalo.
(6) Ingxubevange yePolyethylene: Ingxubevange eveliswa ngokubumba inaliti ibandakanya izinto zemihla ngemihla, iintyatyambo ezenziweyo, iibhokisi zentengiso, izikhongozeli ezincinci, iibhayisekile kunye neenxalenye zetrektara, ezisetyenziselwa ukwenziwa kwezahlulo zesakhiwo.
Ukupakishwa kwiingxowa zeplastiki ezingama-25kg, ezinokuthuthwa ngololiwe okanye ngolwandle zize zigcinwe kwindawo eyomileyo.
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