PVC transparent hoseamapangidwa ndi PVC utomoni powonjezera kuchuluka kwa plasticizer, kuchuluka kwa stabilizer ndi zina zina, kupyolera akamaumba extrusion.Iwo ali ndi makhalidwe mandala ndi yosalala, kulemera kuwala, maonekedwe okongola, softness ndi mitundu yabwino, etc. Amagwiritsidwa ntchito pomanga, makampani mankhwala ndi banja, ntchito kulowetsedwa madzi, kunyamula sing'anga zikuwononga, komanso ntchito ngati waya casing ndi waya insulation layer.
PVC mandala payipi chilinganizo makamaka zikuphatikizapo PVC utomoni, kutentha stabilizer, lubricant, plasticizer ndi colorant.Mapangidwe a fomula ayenera kukwaniritsa zofunikira zowonekera, kuuma pang'ono ndi mphamvu zapamwamba.Pofuna kupititsa patsogolo kuwonekera, posankha zowonjezera zowonjezera, momwe mungathere kusankha index refractive ndi PVC resin refractive index (1) zofanana kapena zowonjezera.Chifukwa cholozera chofananira kapena chofananira chazinthu zomwe zimasinthidwa kukhala chosakaniza chofananira, index ya refractive ndi index refractive ya zopangira ndizofanana.Mwanjira iyi, chodziwika chobalalika molunjika ku kuwala kwa chochitika sichidzawonjezeka, kotero kuti turbidity ya mankhwalawo sichidzawonjezeka, ndipo kuwonekera kwa mankhwala sikudzakhudzidwa kwambiri.
PVC utomoni: chifukwa cha kuchuluka kwa plasticizer mu chilinganizo, PVC utomoni chofunika kuyamwa mafuta bwino, ndi lotayirira utomoni ayenera kusankhidwa.Panthawi imodzimodziyo, kuyera kwakukulu ndi kukhazikika kwabwino kwa kutentha kwa resin kumafunika.Gulu lokhala ndi chiwerengero chochepa cha kusadetsedwa komanso kuchuluka kwa nsomba.Pokwaniritsa zofunikira zamakina, kupanga payipi yowonekera ya PVC kuyenera kugwiritsidwa ntchito momwe mungathere ndi utomoni wocheperako wama cell.Chifukwa ambiri ntchito plasticizer DOP ndi DBP zambiri chigawo chimodzi ndi otsika maselo misa, pamene processing kutentha ndi apamwamba kuposa 105 ℃, nthawi zambiri volatilize ndi kupanga kuwira, kutentha akhoza kulamulira mbali otsika kokha.Pachifukwa ichi, kuchuluka kwa pulasitiki ndi kusungunuka kwa utomoni wokhala ndi kulemera kochepa kwa maselo ndipamwamba kuposa utomoni wokhala ndi kulemera kwakukulu kwa maselo, zomwe zimathandiza kuti zinthu zisamawonekere.Kuphatikiza apo, utomoni wocheperako wa mamolekyulu nawonso ndiwosavuta kukonza.General PVC-SG3, SG4, SG5 utomoni akhoza kusankhidwa malinga ndi zofunika mankhwala.
Plasticizer: makamaka amaganizira zake plasticizing zotsatira, kuzizira kukana, durability ndi chikoka cha PVC poyera.DOP ndi pulasitiki yokhala ndi ntchito yabwino yokwanira, ndipo index yake yowonetsera ndi 1.484, yomwe ili pafupi ndi PVC (1.52 ~ 1.55).Amagwiritsidwa ntchito ngati plasticizer waukulu wa PVC mandala payipi.Mndandanda wa refractive wa DBP ndi 1.492, womwe ulinso pafupi ndi utomoni wa PVC.Sizidzakhudza kuwonekera kwambiri, koma kukula kwake sikukuyenda bwino, ndipo kumakhala kosasunthika, ndipo nthawi zambiri imagwiritsidwa ntchito ngati pulasitiki wothandizira wa DOP.Pofuna kukonza kukana kuzizira, DOS ikhoza kuwonjezeredwa ngati pulasitiki yowonjezera.Mlingo wa plasticizer ndi 40 ~ 55 nthawi zambiri.
Kutentha stabilizer: kuwonjezera pa zofunikira za kukana kutentha, kukana kwa nyengo ndi kukonza kosavuta ndi zinthu zina zofunika, ziyeneranso kuganizira kuwonekera kwake.Organotin stabilizer ndiye yabwino kwambiri komanso yogwiritsidwa ntchito kwambiri kutentha kwazinthu zowonekera za PVC, koma mtengo wake ndi wapamwamba.Zitsulo sopo stabilizers, monga calcium stearate, barium stearate, zinki stearate, ndi zina zotero, amagwiritsidwa ntchito kutentha stabilizers ZOSAVUTA machubu a PV C. The pawiri mankhwala Ca/Zn, Ba/Zn, Ba/Ca ndi Ba/Ca/Zn zabwino kwambiri.Pofuna kuchepetsa kuchuluka kwa organotin, calcium stearate (sopo wa calcium) ndi zinc stearate (zinki sopo) wowonekera bwino komanso mafuta odzola adagwiritsidwa ntchito ngati zolimbikitsa zothandizira.
Nthawi yotumiza: Jul-07-2022