Polyethylene sera ndi polyethylene yokhala ndi kulemera kochepa kwa maselo (<1000), ndipo ndi wothandizira wamba mumakampani opanga mapulasitiki.Kugwiritsa ntchito sera ya polyethylene pakumangirira kwa pulasitiki kumatha kupititsa patsogolo kutulutsa kwazinthu, kukulitsa kupanga, ndikulola ndende yodzaza kwambiri.

Pe phulachimagwiritsidwa ntchito mtundu masterbatch processing.Cholinga chowonjezera sera ya polyethylene sikungosintha machitidwe amtundu wa masterbatch, komanso kulimbikitsa kubalalika kwa inki mu mtundu masterbatch.Kubalalitsidwa kwa pigment ndikofunikira kwambiri kwa mtundu wa masterbatch, ndipo mtundu wa masterbatch makamaka umadalira kubalalitsidwa kwa pigment.Kubalalika kwamtundu wa pigment, mphamvu yopaka utoto kwambiri ya mtundu wa masterbatch, mitundu yabwino yazinthu, komanso mtengo wotsika.Sera ya polyethylene imatha kusintha kuchuluka kwa mtundu wa pigment kumlingo wina, ndipo ndi dispersant wamba popanga mtundu wa masterbatch.Chifukwa cha njira zosiyanasiyana zopangira, sera ya polyethylene imatha kugawidwa m'mitundu iwiri: mtundu wa polymerization ndi mtundu wa pyrolysis.Yoyamba ndi yopangidwa ndi polyethylene polymerization yapamwamba kwambiri, ndipo yotsirizirayi imapangidwa ndi polyethylene matenthedwe akuwombera.Chifukwa sera ya polyethylene yokhala ndi mawonekedwe osiyanasiyana a maselo amatha kugawidwa m'magulu apamwamba komanso otsika, omwe ndi ofanana ndi polyethylene.Chifukwa cha kusiyana kwa njira zopangira, kachulukidwe, kulemera kwa maselo, kugawa kwa maselo ndi mapangidwe a polyethylene sera, ntchito yake yogwiritsira ntchito mtundu wa masterbatch ndi yosiyana.

Kukonzekera kwa polyethylene sera ndi pyrolysis
Pyrolysis ndiye njira yayikulu yopangira sera ya polyethylene ku China.The mkulu maselo kulemera koyera polyethylene kapena zinyalala polyethylene pulasitiki ndi pyrolysed mu polyethylene sera pa kutentha kwambiri.Ubwino wa mankhwala ake ndi katundu (monga kuuma, malo osungunuka, mtundu wowoneka, ndi zina zotero) zimakhudzidwa kwambiri ndi gwero la zowonongeka zowonongeka.Njira ya pyrolysis ndiyosavuta, gwero la zopangira ndi lolemera, ndipo mtengo wake ndi wotsika.Itha kuzindikira kugwiritsanso ntchito zinyalala za polyethylene, ndi zabwino zachuma.

Njira zosweka zomwe zilipo zikuphatikiza kung'amba kwamafuta, kusweka kothandizidwa ndi zosungunulira komanso kusweka kochititsa chidwi.Pakati pawo, kuwotcha kwamafuta ndikosavuta.Sera ya polyethylene imatha kukonzedwa poyang'anira kutentha ndi nthawi, koma pamafunika mphamvu zambiri.

Xue Ping ndi ena ochokera ku yunivesite ya Beijing ya Chemical Technology adachita kafukufuku wokonza sera ya polyethylene ndi pyrolysis wa PE resin pa kutentha kwakukulu mu chopopera chimodzi.Chotenthetsera chinawonjezeredwa pa chitoliro cholumikizira pakati pa extruder ndi thanki yozizira kuti itenthetse zomwe zili mmenemo, ndipo kutentha kwabwino kwambiri kunali 420 ℃, pozindikira kuti sera ya polyethylene ikupitirizabe ndi pyrolysis ya PE resin.

Zhang Jianyu ndi ena anaphunzira ntchito Al-MCM-48 monga chothandizira kuti yambitsa kuwonongeka kwa zinyalala polyethylene kukonzekera polyethylene sera mu autoclave, ndi kutentha anachita 360 ~ 380 ℃ ndi anachita nthawi 4 h.Ntchito chothandizira amachepetsa zimene kutsegula mphamvu, kutentha chofunika akulimbana ndi mowa mphamvu.Wang Lulu ndi ena bwino zokolola za polyethylene sera ndi zosungunulira-anathandiza pyrolysis wa polyethylene zinyalala mapulasitiki, ndipo anafufuza zotsatira za zosungunulira zosiyanasiyana ndi mmene zinthu pa zokolola ndi ntchito sera sera.Mayesowa akuwonetsa kuti zokolola za sera za polyethylene zitha kuwongoleredwa pogwiritsa ntchito zosungunulira zonunkhira, ndipo zokolola zimatha kufika 87.88% pogwiritsa ntchito xylene wosakanikirana ngati zosungunulira.Zosungunulira zonunkhiritsa zimathanso kusintha mtundu wazinthuzo mpaka kufika pamlingo wina, ndipo sera yopepuka yachikasu ya polyethylene imatha kupezeka.
Malingaliro a kampani Qingdao Sainuo Chemical Co.,Ltd.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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