Pakalipano, pali mitundu itatu ikuluikulu ya njira zopangiraPE sera: Choyamba, sera ya polyethylene imapangidwa ndi oligomerization reaction ya ethylene monoma, monga njira ya free radical oligomerization;Yachiwiri ndi sera ya polyethylene yokonzedwa ndi kuwonongeka kwa ma polima;Chachitatu ndi byproduct mu kaphatikizidwe ndondomeko polyethylene, monga polyethylene sera anapezedwa ndi kulekanitsa byproduct mu mkulu-anzanu polyethylene synthesis.

1. Ethylene polymerization njira
Pali njira zitatu zazikulu zopangira sera ya polyethylene kudzera mu polymerization ya ethylene.Chimodzi ndi polymerize pogwiritsa ntchito zida zopangira ma free radical pa kutentha kwambiri komanso kupanikizika;Chachiwiri ndi polymerize pansi pa zovuta zochepa pogwiritsa ntchito zida za Ziegler;Chachitatu ndi polymerization ya metallocene chothandizira.
2. Polyethylene akulimbana njira
The molecular weight distribution ofphula la polyethylenekwaiye njira polymerization ndi yopapatiza, ndi wachibale maselo kulemera kukula akhoza pamanja ankalamulira, koma ziyenera kuchitidwa pa chipangizo chachikulu ndi ndalama mkulu.Opanga apakhomo nthawi zambiri amagwiritsa ntchito njira yowotcha yotentha ya polyethylene yolemera kwambiri popanga.Njirayi imatha kugwiritsa ntchito polyethylene resin kapena polyethylene zinyalala pulasitiki ngati zopangira.Yoyamba imapanga zinthu zapamwamba, pamene zotsirizirazo zimapanga zinthu zotsika.High maselo kulemera polyethylene akhoza thermally losweka mu otsika maselo kulemera polyethylene sera pansi mpweya kudzipatula zinthu.Zomwe zimagwirizana ndi kapangidwe ka sera ya polyethylene yokonzedwa, monga crystallinity, kachulukidwe, kuuma, ndi kusungunuka, zonse zimakhudzidwa ndi zowonongeka.Njira zowonongeka zimagawidwa mu njira yophwanyira ketulo ndi njira ya extrusion.

Njira yopangira ketulo ndi njira yopangira kaduka, yoyenera kwa opanga omwe ali ndi voliyumu yotsika yopangira komanso mphamvu yaying'ono yopanga;The extrusion njira ndi mosalekeza kupanga ndondomeko oyenera mabizinezi ndi mabuku lalikulu kupanga ndi mkulu mphamvu kupanga.

Sera ya polyethylene ikhoza kukonzedwa pogwiritsa ntchito njira yopopera ya polyethylene.Ukadaulo umenewu uli ndi gwero lambiri komanso lotsika mtengo la zopangira, njira yosavuta, komanso zotsika mtengo zogwirira ntchito.
3. Kuyeretsedwa kwa zinthu zopangidwa ndi polyethylene
Pochita kupanga polyethylene kuchokera ku ethylene polymerization, sera ya polyethylene imatha kubwezeredwa kuchokera ku osakaniza a zigawo zotsika zama cell kulemera ndi zosungunulira zomwe zimatengedwa ngati zopangira.Pambuyo pochotsa zosungunulira ndi zoyambitsa kuchokera ku-product ya polyethylene chomera, kugawa kwa molekyulu ya mankhwala kumakhalabe kwakukulu, komwe kumachepetsa ntchito yake ndipo kumafuna kuyeretsedwa kwina kupyolera mu kulekanitsa zosungunulira.Izi byproduct polyethylene sera zambiri amakhala mamolekyu ndi wachibale molekyulu kulemera mozungulira 1000, kotero zake thupi monga mphamvu mawotchi ndi kukana kutentha ndi otsika kuposa opangidwa ndi ethylene polymerization.

4. Kusintha kwa sera ya polyethylene
Sera ya polyethylene ndi molekyulu yopanda polar, ndipo ngati magulu a polar amatha kuyikidwa mu molekyulu, idzakulitsa kwambiri minda yake yogwiritsira ntchito.Izi functionalized polyethylene sera akhoza kupangidwa ndi copolymerization wa ethylene ndi monomers mpweya munali, kapena poyambitsa magulu carboxyl kudzera njira mankhwala monga makutidwe ndi okosijeni ndi Ankalumikiza, ndiyeno zina kusinthidwa mwa zimachitikira mankhwala monga esterification, amidation, ndi saponification.Izi functionalized polyethylene sera akhoza kukwaniritsa zofunika zosiyanasiyana ntchito.
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Qingdao Sainuo Gulu.Ndife opanga sera PE, PP sera, OPE sera, Eva sera, PEMA, EBS, Zinc / Calcium Stearate….Zogulitsa zathu zadutsa REACH, ROHS, PAHS, FDA kuyesa.
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