Pogwiritsira ntchito polypropylene fiber spinning, kugwiritsidwa ntchito kwaphula la polyethylenendi malire.Kwa ulusi wamba wabwino kwambiri wokanira ndi ulusi wapamwamba kwambiri, makamaka wa ubweya wofewa ngati wokanira bwino ndi ulusi wa BCF woyenera poyala ndi malaya ansalu, sera ya polypropylene nthawi zambiri imakhala yabwino kuposa sera ya polyethylene.
Sainuo mkulu-chiyerophula la polypropylene, kukhuthala kwapakatikati, malo osungunuka kwambiri, mafuta abwino, komanso dispersibility yabwino.Pakali pano ndi wothandizira kwambiri pokonza polyolefin, kukana kutentha kwambiri, komanso kutheka kwambiri.

Choyamba, chifukwa cha kusagwirizana pakati pa polypropylene ndi polyethylene, zimakhala zovuta kwambiri kupanga kusakaniza yunifolomu mu lingaliro laling'ono, zomwe zidzatsogolera kupatukana kwa gawo.
Kachiwiri, chifukwa kusungunuka kwa sera ya polyethylene ndi yotsika kwambiri kuposa sera ya polypropylene kapena polypropylene, zimakhala zovuta kuthana ndi zosiyana zosungunuka za ma polima awiriwa.Kusagwirizana ndi rheology yosayenera ya mankhwalawa kungayambitse kutha kwa kusweka kwa ndondomeko yozungulira.Chifukwa cha zotsatirazi, nsalu zakuthupi za ulusi zimakhala zoipitsitsa.
Panthawi imeneyi, m'pofunika kugwiritsa ntchito sera polypropylene ndi otsika mamasukidwe akayendedwe.Chifukwa cha kukhuthala kwake kochepa komanso kunyowa bwino, imatha kunyowetsa pigment pakanthawi kochepa.Kuonjezera apo, pojambula ndi kuyika kutentha kwa polypropylene fiber, imatha kupezeka kuchokera ku kutentha kwa kutentha (nthawi zambiri pafupifupi 130c), yomwe imakhala mkati mwa kutentha kosungunuka kwa sera ya polyethylene.
Chifukwa cha kusintha kwa crystalline kapangidwe ka polypropylene pulayimale CHIKWANGWANI, zikhoza kuonedwa kuti wosungunuka polyethylene sera imalowera mu CHIKWANGWANI pamwamba kuchokera polypropylene masanjidwewo, osati sera koyera, komanso pigment adzabweretsedwa pamwamba.

Pomaliza, kuyanjana kwa sera ya polypropylene ndi utomoni wa polypropylene ndikwabwino m'mbali zonse zazing'ono komanso zazikulu, ndipo sikukhudza kwambiri makina amakina.Pali mitundu iwiri ya sera polypropylene polymerized ndi metallocene chothandizira luso: mmodzi ndi homopoly polypropylene sera, ndi zopangira ndi propylene;Ina ndi sera ya copolymerized polypropylene, yomwe imagwiritsa ntchito propylene ndi ethylene ngati zida zopangira.
Nthawi zambiri, sera ya homopolypropylene imakhala ndi malo osungunuka kwambiri pakati pa 140-160c, kulemera kwa mamolekyulu kuchokera pa masauzande mpaka makumi masauzande, kumagwirizana ndi kukhuthala kwa Brookfield kuchokera kumachulukidwe ambiri mpaka angapo owuma, kuyera kwambiri komanso kuuma kwakukulu.Malo osungunuka a sera ya copolymerized polypropylene nthawi zambiri amakhala pakati pa 80-110 ℃, kukhuthala kwa Brookfield ndi mazana mpaka masauzande kapena makumi masauzande, ndipo kulemera kwa mamolekyulu ofanana ndi masauzande mpaka makumi masauzande.Chifukwa cha kuwonjezera kwa ethylene comonomer mu copolymerized polypropylene, yomwe imasokoneza dongosolo lokhazikika la mamolekyu a propylene, crystallinity ya copolymerized polypropylene ndi yotsika komanso malo osungunuka enieni ndi otsika.
Pakunyowetsa pigment, kunyowetsa kwa sera kutsika kwambiri kumachitika mwachangu ndipo kunyowetsa bwino kumakhala kwakukulu.Koma chofunika mu waya extrusion.Mu gawo la granulation, tikuyembekeza kuti sera ili ndi kukhuthala kwina, komwe kumatha kusamutsa mphamvu yakumeta ubweya pakati pa pigment ndi utomoni usungunuke, kuti pigment yonyowa igawidwe mofanana mu utomoni usungunuke.Panthawi imeneyi, zikhoza kuganiziridwa kuti zigwiritse ntchito sera ya polypropylene yokhala ndi malo otsika osungunuka ndi sera ya polypropylene yokhala ndi kukhuthala kwakukulu, kuti mukwaniritse kubalalitsidwa kwabwino.
Malingaliro a kampani Qingdao Sainuo Chemical Co.,Ltd.Ndife opangasera 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!
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