ntchito

Utoto wopangira mbiri ya pulasitiki ya PVC ndi polyvinyl chloride resin (PVC).Polyvinyl chloride ndi polima wopangidwa ndi vinyl chloride monomer.

PVC utomoni akhoza m'gulu la mitundu iwiri, lotayirira mtundu (XS) ndi yaying'ono mtundu (XJ), kutengera wobalalitsa wothandizira mu polymerization.The lotayirira tinthu kukula ndi 0.1-0.2mm, pamwamba ndi osasamba, porous, thonje-ngati, yosavuta kuyamwa plasticizer, yaying'ono tinthu kukula ndi zosakwana 0.1mm, pamwamba ndi wokhazikika, olimba, tebulo tennis, zovuta kuyamwa plasticizer, Pa panopa, mitundu yotayirira kwambiri imagwiritsidwa ntchito.

PVC akhoza kugawidwa mu kalasi wamba (poizoni PVC) ndi ukhondo kalasi (non poizoni PVC).Ukhondo kalasi amafuna vinilu kolorayidi (VC) zili zosakwana 10 × 10-6, amene angagwiritsidwe ntchito chakudya ndi mankhwala.Osiyana kupanga njira, PVC akhoza kugawidwa mu kuyimitsidwa PVC ndi emulsion PVC.Malinga ndi dziko muyezo GB/T5761-93 "Kuyendera muyezo wamba polyvinyl kolorayidi utomoni kwa njira kuyimitsidwa", kuyimitsidwa njira PVC anawagawa PVC-SG1 kuti PVC-SG8 mitundu isanu ndi itatu ya utomoni, mmene ang'onoang'ono chiwerengero, kukula kwakukulu kwa polymerization, kulemera kwa maselo kumakhalanso Kukula kwa mphamvu, kumapangitsa kuti kusungunuke kusungunuke, ndizovuta kwambiri kukonza.

Posankha chinthu chofewa, PVC-SG1, PVC-SG2, ndi PVC-SG3 nthawi zambiri amagwiritsidwa ntchito, ndipo pulasitiki yochuluka iyenera kuwonjezeredwa.Mwachitsanzo, filimu ya polyvinyl chloride imapangidwa ndi utomoni wa SG-2, ndipo magawo 50 mpaka 80 a plasticizer amawonjezeredwa.Mukakonza zinthu zolimba, mapulasitiki nthawi zambiri samawonjezeredwa kapena kuwonjezeredwa pang'ono, kotero PVC-SG4, PVC-SG5, PVC-SG6, PVC-SG7, ndi PVC-SG8 amagwiritsidwa ntchito.

Mwachitsanzo, utomoni wa SG-4 umagwiritsidwa ntchito pa chitoliro cholimba cha PVC, utomoni wa SG-5 umagwiritsidwa ntchito pazitseko za pulasitiki ndi zenera, utomoni wa SG-6 umagwiritsidwa ntchito popanga filimu yowoneka bwino, ndipo utomoni wa SG-7 ndi SG-8 umagwiritsidwa ntchito. mbiri yolimba thovu.The emulsion njira PVC phala zimagwiritsa ntchito chikopa yokumba, wallpaper, pansi zikopa ndi mankhwala pulasitiki.Ena opanga PVC utomoni sitima PVC utomoni malinga ndi digiri ya polymerization (digiri ya polymerization ndi chiwerengero cha maulalo unit, mlingo wa polymerization kuchulukitsidwa ndi kulemera kwa maselo a unyolo ndi wofanana ndi kulemera kwa maselo a polima), monga PVC. utomoni wopangidwa ndi Shandong Qilu Petrochemical Plant, zopangidwa ndi fakitale Ndi S-700;S-800;S-1000;S-1100;S-1200.

Utoto wa SG-5 uli ndi digiri ya polymerization kuyambira 1,000 mpaka 1,100.PVC ufa ndi ufa woyera wokhala ndi kachulukidwe pakati pa 1.35 ndi 1.45 g/cm3 ndi kachulukidwe kowoneka bwino ka 0.4 mpaka 0.5 g/cm3.Timawona zomwe zili mu plasticizer muzinthu za PVC ngati zinthu zofewa komanso zolimba.Nthawi zambiri, zomwe zili mu plasticizer ndi 0 ~ 5 magawo azinthu zolimba, 5 ~ 25 zida za semi-hard, ndi magawo opitilira 25 azinthu zofewa.

Zibo Junhai Chemical ndi ogulitsa kwambiri a Pvc Resin.Titha kupereka PVC utomoni S3, PVC utomoni SG5, PVC utomoni SG8, ​​PVC utomoni S700, PVC utomoni S1000, PVC utomoni S1300 ext.Ndipo ndi zochokera kwa opanga pamwamba China , Monga Erdos PVC utomoni , Sinopec PVC utomoni , Beiyuan PVC utomoni , Xinfa PVC utomoni , Zhong tai PVC utomoni , Tianye PVC utomoni .ext.

Polyvinyl chloride ili ndi mawonekedwe odziwika bwino azinthu zambiri zopangira (mafuta, miyala yamchere, coke, mchere ndi gasi), njira yopangira okhwima, mtengo wotsika, komanso ntchito zosiyanasiyana.Yakhala utomoni wachiwiri waukulu padziko lonse lapansi pambuyo pa polyethylene resin.29% yazomwe zimagwiritsidwa ntchito padziko lonse lapansi.Polyvinyl kolorayidi ndi yosavuta pokonza ndipo akhoza kukonzedwa ndi akamaumba, laminating, jekeseni akamaumba, extrusion, calendering, kuwomba akamaumba, etc. Polyvinyl kolorayidi makamaka ntchito kupanga zofewa pulasitiki mankhwala monga chikopa yokumba, mafilimu, ndi m'chimake waya, komanso. monga zinthu zapulasitiki zolimba monga mbale, zitseko ndi mazenera, mapaipi ndi ma valve.