mankhwala

Mafilimu a PVC,
PVC kwa filimu, PVC utomoni kwa Flexible Vinyl Film, PVC utomoni kwa Rigid Vinyl Film,

Kanema wa PVC wopanda plasticizer amatchedwa filimu yolimba ya vinilu, pomwe filimu ya PVC imatchedwa flexible vinyl film.
1.Flexible Vinyl Film

Filimu ya vinyl yosinthika imakhala ndi zotchinga zabwino zotchinga mafuta ndi mafuta koma zimatha kulowa mpweya.Ilinso ndi kumamatira kwabwino, kumveka bwino komanso kusagwirizana ndi puncture.Izi zimapangitsa PVC yosinthika kukhala yoyenera kuyika chakudya kuti nyama ndi zokolola zina zowonongeka zikhale zatsopano (pamene FDA ivomereza).Komabe, PVC yopangidwa ndi pulasitiki imakhala ndi malo otsika osungunuka, osagonjetsedwa ndi mankhwala, ndipo imakhala ndi mphamvu zotsika kwambiri kuposa vinyl yolimba.

2.Kanema Wolimba Wa Vinyl

Vinilu wolimba, yemwe amadziwikanso kuti unplasticized polyvinyl chloride (uPVC), ndi filimu yamphamvu komanso yopepuka.Ndi imodzi mwa mafilimu otsika kwambiri okhazikika komanso osagonjetsedwa ndi mankhwala ambiri.Nthawi zambiri, uPVC imatha kugwiritsidwa ntchito potentha mpaka 60°C.Ili ndi mphamvu zolimba kwambiri komanso modulus kuposa PVC yosinthika, koma imakhala ndi mphamvu zochepa, ndipo imatha kusweka kutengera chilengedwe.

PVC ili ndi zofooka zingapo ndi zovuta;pulasitiki imatha kuuma m'malo ozizira ndikufewetsa pansi pa kutentha, zomwe zimapangitsa kusintha kwa katundu ndipo zimatha kusokoneza mphamvu ya chisindikizo.PVC imatulutsanso mpweya wochepa wa hydrogen chloride ndipo imapanga carbon deposit pazida zosindikizira zikatenthedwa.Pachifukwa ichi, mpweya wabwino umafunika posindikiza PVC shrink-wrap.

APPLICATIONS
Kanema wa PVC amagwiritsidwa ntchito ngati kukulunga ndi kukulunga kwazinthu zamafakitale ndi ogula komanso ngati zokutira pallet, komabe, pamlingo wocheperako kuposa makanema a polyolefin.Ntchito zina ndi monga matumba, liners, sleeving mabotolo, zomatira tepi kumbuyo, malembo, matumba magazi ndi IV matumba.Nthawi zambiri imakutidwa ndi PVDC pakafunika kuwongolera zotchinga chinyezi.

FDA idavomereza PVC ndi chisankho chabwino kuyika nyama yofiyira yatsopano chifukwa ndi yokwanira pang'ono, kutanthauza kuti ndi mpweya wokwanira wokwanira kusunga nyama zatsopano komanso kukhala ndi mtundu wofiira wowala.Pamene kuwonekera ndikofunikira, PVC imagwiritsidwa ntchito nthawi zambiri.

Polyvinyl Chloride, wotchedwa PVC, ndi imodzi mwa mitundu ya pulasitiki yopangidwa ndi mafakitale, zomwe zilipo panopa ndi zachiwiri kwa polyethylene.Polyvinyl chloride yakhala ikugwiritsidwa ntchito kwambiri m'makampani, ulimi komanso moyo watsiku ndi tsiku.Polyvinyl chloride ndi polima pawiri polymerized ndi vinilu kloride.Ndi thermoplastic.ufa woyera kapena wopepuka wachikasu. Amasungunuka mu ketoni, esters, tetrahydrofurans ndi ma hydrocarboni a chlorine.Wabwino kukana mankhwala.Kusakhazikika kwamafuta ndi kukana kuwala, kupitilira 100 ℃ kapena kutentha kwa nthawi yayitali kudayamba kuwola hydrogen chloride, kupanga pulasitiki kumafunika kuwonjezera stabilizer.Kutsekemera kwamagetsi ndikwabwino, sikungawotche.

Gulu la S-700 limagwiritsidwa ntchito makamaka popanga ma flakes owoneka bwino, ndipo imatha kukanikizidwa ku kagawo kolimba kapena kolimba kwambiri kapena pepala la phukusi, zinthu zapansi, filimu yolimba yolumikizira (papepala lomata maswiti kapena filimu yonyamula ndudu), ndi zina zotero. onjezeraninso ku kagawo kolimba kapena kolimba, pepala, kapena kapamwamba kosaoneka bwino kwa phukusi.Kapena ikhoza kubayidwa kuti ipange zolumikizira, ma valve, zida zamagetsi, zida zamagalimoto ndi zotengera.

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