Polyethylene serandi mtundu wa polyolefin kupanga sera, amene zambiri amatanthauza homopolyethylene ndi wachibale maselo kulemera zosakwana 10000. M'lingaliro yotakata, ethylene ma polima ndi osauka mphamvu ndi kulimba ndipo sangathe kukonzedwa ngati chinthu chimodzi akhoza kutchedwa polyethylene sera.Pe phulaali ndi mfundo yofewa kwambiri, kukhuthala kochepa kosungunuka, kukhazikika kwamankhwala abwino, kutsekemera kwabwino komanso madzimadzi.Monga chithandizo chothandizira, chimagwiritsidwa ntchito kwambiri mu mapaipi a PVC, mafilimu, zingwe ndi zinthu zina zapulasitiki ndi mphira kuti zipititse patsogolo ntchito yokonza zinthu ndikuwongolera maonekedwe a zinthu zomalizidwa.

Kukonzekera njira ya polyethylene sera
Pali njira zitatu zazikulu zopangira sera.Yoyamba ndi njira ya polyethylene yosweka, yomwe imathyola utomoni wa polyethylene kukhala sera ya polyethylene yokhala ndi kulemera kochepa kwa maselo pa kutentha kwambiri.Yachiwiri ndi mankhwala kuyenga njira, amene amasonkhanitsa ndi-zipatso za otsika maselo kulemera zigawo zikuluzikulu opangidwa mu kupanga ethylene polymerization ndi kuwayeretsa kuti apeze polyethylene sera.Njira yachitatu ndi ethylene kaphatikizidwe njira, amene mwachindunji synthesize polyethylene sera ndi ethylene monga zopangira.Lero, Sainuo akutengerani kuti muphunzire za sera ya polyethylene yokonzedwa ndi njira yosweka ndi njira yophatikizira.

(1) Kukonzekera kwa polyethylene sera ndi pyrolysis
Njira yosweka ndiyo njira yayikulu yopangira sera ya polyethylene ku China.High maselo kulemera koyera polyethylene kapena zinyalala polyethylene pulasitiki ndi losweka mu polyethylene sera pa kutentha.Zogulitsa zake ndi katundu wake (monga kuuma, kusungunuka ndi mtundu wowoneka) zimakhudzidwa kwambiri ndi gwero la zowonongeka zowonongeka.Njira yophwanyira ili ndi ukadaulo wosavuta, gwero lolemera la zida zopangira komanso mtengo wotsika mtengo.Itha kuzindikira kugwiritsidwanso ntchito kwa zinyalala za polyethylene ndi zabwino zachuma.Komabe, ndondomeko yowonongeka ndi yovuta kulamulira, kugawa kwa maselo a mankhwala ndi kwakukulu, ubwino wa sera ya polyethylene ndizovuta kulamulira, ndipo mawanga ambiri akuda amapangidwa.Ndiwotchuka pakati ndi otsika-mapeto ntchito monga mtundu masterbatch.
Njira zosweka zomwe zilipo zikuphatikiza kung'amba kwamafuta, kusefukira kothandizira zosungunulira komanso kusweka kwamphamvu.Pakati pawo, kuwotcha kwamafuta ndikosavuta.Zopangira sera za polyethylene zitha kukonzedwa poyang'anira kutentha ndi nthawi, koma kugwiritsa ntchito mphamvu kumafunikira.Anthu ochokera ku yunivesite ya Beijing yaukadaulo wamankhwala aphunzira kukonzekera sera ya polyethylene pophwanya utomoni wa PE pa kutentha kwakukulu mu phula limodzi lotulutsa.Chotenthetsera chimawonjezedwa pa chitoliro cholumikizira pakati pa extruder ndi thanki yozizirira kuti itenthe ndi kusweka zakuthupi.The mulingo woyenera kwambiri kutentha kutentha ndi 420 ℃, kuzindikira mosalekeza kupanga akulimbana PE utomoni kukonzekera polyethylene sera.Ena aphunzira kukonzekera sera ya polyethylene pophwanya zinyalala za polyethylene mu autoclave yokhala ndi al-mcm-48 ngati chothandizira.The kutentha anachita ndi 360 ~ 380 ℃ ndi anachita nthawi 4H.Kugwiritsa ntchito chothandizira kumachepetsa zomwe zimayambira mphamvu, kutentha kofunikira pa pyrolysis ndi kugwiritsa ntchito mphamvu.A Wang Lulu ndi ena adapititsa patsogolo zokolola za sera ya polyethylene pogwiritsa ntchito pyrolysis yothandizira mapulasitiki a polyethylene zinyalala.Zotsatira za zosungunulira zosiyanasiyana ndi mmene zinthu pa zokolola ndi katundu wa sera anafufuzidwa.Mayesowa akuwonetsa kuti zokolola za sera za polyethylene zitha kuwongoleredwa pogwiritsa ntchito zosungunulira zonunkhira.Mukamagwiritsa ntchito xylene yosakanikirana ngati zosungunulira, zokolola zimafika 87.88%.Zosungunulira zonunkhiritsa zimathanso kusintha mtundu wazinthuzo mpaka kufika pamlingo wina ndikupeza sera yachikasu ya polyethylene.

(2) Kaphatikizidwe ka polyethylene sera
Sera ya polyethylene yopangidwa mwachindunji kuchokera ku ethylene imakhala yoyera kwambiri, kugawa kochepa kwa maselo, kusungunuka kwapang'onopang'ono, magwiridwe antchito osinthika komanso mtundu wokhazikika.Amagwiritsidwa ntchito popanga sera yapamwamba komanso yosiyanasiyana ya polyethylene.Malinga ndi ma polymerization limagwirira ndi mitundu ya catalysts ntchito, ethylene synthesis akhoza kugawidwa mu ufulu kwakukulu mapolima polymerization, Ziegler Natta (ZN) chothandizira polymerization, metallocene chothandizira polymerization ndi zina zotero.
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.
Sainuo khalani otsimikiza sera, landirani kufunsa kwanu!
Webusayiti: https://www.sanowax.com
E-mail：sales@qdsainuo.com
               sales1@qdsainuo.com
Adilesi: Chipinda 2702, Block B, Suning Building, Jingkou Road, Licang District, Qingdao, China