Polyethylene kakin zumawani nau'i ne na kakin zuma na roba na polyolefin, wanda gabaɗaya yana nufin homopolyethylene tare da nauyin kwayoyin halitta wanda bai wuce 10000 ba. A cikin ma'ana mai mahimmanci, ethylene polymers tare da rashin ƙarfi da ƙarfi kuma ba za a iya sarrafa shi azaman abu ɗaya ba ana iya kiran shi polyethylene wax.Pe waxyana da babban laushi mai laushi, ƙarancin narkewa, kyakkyawan kwanciyar hankali, mai kyau mai kyau da ruwa.A matsayin taimakon sarrafawa, ana amfani da shi sosai a cikin bututun PVC, fina-finai, igiyoyi da sauran samfuran filastik da roba don haɓaka aikin sarrafa samfuran da haɓaka bayyanar samfuran da aka gama.

Hanyar shiri na polyethylene kakin zuma
Akwai manyan hanyoyin roba guda uku na pe kakin zuma.Na farko shine hanyar fasa polyethylene, wanda ke karya resin polyethylene zuwa cikin kakin polyethylene tare da ƙananan nauyin kwayoyin a babban zafin jiki.Hanya ta biyu ita ce hanyar tace samfuran, wanda ke tattara samfuran ƙananan ƙwayoyin ƙwayoyin cuta waɗanda aka samar a cikin tsarin samar da ethylene polymerization kuma suna tsarkake su don samun kakin polyethylene.Hanya ta uku ita ce hanyar haɗin ethylene, wanda ke haɗa kakin polyethylene kai tsaye tare da ethylene a matsayin ɗanyen abu.A yau, Sainuo zai kai ku don koyo game da kakin polyethylene wanda aka shirya ta hanyar tsagewa da kuma hanyar haɗawa.

(1) Shiri na polyethylene kakin zuma ta hanyar pyrolysis
Hanyar fasawa ita ce babbar hanyar samar da kakin polyethylene a kasar Sin.Babban nauyin kwayoyin polyethylene mai tsabta ko filastik polyethylene sharar gida yana fashe cikin kakin polyethylene a babban zafin jiki.Ingantattun samfuran sa da kaddarorin sa (kamar taurin, wurin narkewa da kuma bayyananniyar launi) suna da tasiri sosai daga tushen fashe albarkatun ƙasa.Hanyar fashewa yana da fasaha mai sauƙi, tushen albarkatun albarkatun kasa da ƙananan farashin aiki.Zai iya gane sake amfani da polyethylene mai sharar gida tare da fa'idodin tattalin arziki mai kyau.Duk da haka, tsarin fashewa yana da wuyar sarrafawa, rarraba nauyin kwayoyin halitta na samfurin yana da fadi, ingancin polyethylene kakin zuma yana da wuyar sarrafawa, kuma ana samar da nau'i-nau'i masu yawa na baki.Ya shahara a aikace-aikace na tsakiya da na ƙasa kamar su masterbatch mai launi.
Hanyoyin fashewar da ke akwai sun haɗa da fashewar thermal, ƙwanƙwasa taimakon ƙarfi da fashewar catalytic.Daga cikin su, thermal cracking shine mafi sauki.Ana iya shirya samfuran kakin polyethylene ta hanyar sarrafa yanayin zafin jiki da lokaci, amma ana buƙatar amfani da makamashi mai yawa.Jama'a daga jami'ar Beijing ta fasahar sinadarai sun yi nazari kan yadda ake yin kakin polyethylene ta hanyar fasa resin PE a babban zafin jiki a cikin injin fiɗa guda ɗaya.Ana ƙara mai dumama akan bututu mai haɗawa tsakanin mai fitar da tanki mai sanyaya don zafi da fashe kayan.Mafi kyawun zafin jiki na fatattaka shine 420 ℃, fahimtar ci gaba da samar da guduro na PE don shirya kakin polyethylene.Wasu sun yi nazarin yadda ake shirya kakin polyethylene ta hanyar fasa polyethylene mai sharar gida a cikin wani autoclave tare da al-mcm-48 a matsayin mai kara kuzari.A dauki zazzabi ne 360 ​​~ 380 ℃ da dauki lokaci ne 4H.Yin amfani da mai kara kuzari yana rage yawan kuzarin kunnawa, yanayin zafin da ake buƙata don pyrolysis da amfani da makamashi.Wang Lulu da sauransu sun inganta yawan amfanin ƙasa na polyethylene ta hanyar pyrolysis da aka taimaka wa pyrolysis na sharar gida na polyethylene.An bincika tasirin abubuwan kaushi daban-daban da yanayin amsawa akan yawan amfanin ƙasa da kaddarorin kakin zuma.Gwajin ya nuna cewa ana iya inganta yawan amfanin ƙasa na polyethylene ta amfani da kaushi mai kamshi.Lokacin amfani da gauraye xylene azaman ƙarfi, yawan amfanin ƙasa ya kai 87.88%.Har ila yau, kaushi mai kamshi na iya inganta ingancin samfurin zuwa wani ɗan lokaci kuma su sami kakin zuma mai launin rawaya mai haske.

(2) Haɗin polyethylene kakin zuma
Polyethylene kakin da aka haɗa kai tsaye daga ethylene yana da babban tsabta, ƙananan rarraba nauyin kwayoyin halitta, kunkuntar narkewa, aikin samfurin daidaitacce da ingantaccen inganci.Ana amfani da shi don samar da kakin zuma mai inganci da bambancin polyethylene.Dangane da tsarin polymerization da nau'ikan masu haɓakawa da aka yi amfani da su, ana iya raba haɗin ethylene zuwa polymerization na radical na kyauta, Ziegler Natta (ZN) polymerization catalytic polymerization, metallocene catalytic polymerization da sauransu.
Qingdao Sainuo Chemical Co., Ltd.Mu ne masana'anta don PE kakin zuma, PP kakin zuma, OPE kakin zuma, EVA kakin zuma, PEMA, EBS, Zinc / Calcium Stearate….Kayayyakin mu sun wuce REACH, ROHS, PAHS, gwajin FDA.
Sainuo rest assured wax, maraba da tambayar ku!
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