ntchito

PVC nthawi zambiri imagwiritsidwa ntchito ngati jekete yamagetsi yamagetsi chifukwa champhamvu zake zotchingira magetsi komanso kukhazikika kwa dielectric.PVC imagwiritsidwa ntchito kwambiri mu chingwe chotsika chamagetsi (mpaka 10 KV), mizere yamatelefoni, ndi mawaya amagetsi.

Mapangidwe oyambira popanga kutchinjiriza kwa PVC ndi ma jekete a waya ndi chingwe nthawi zambiri amakhala ndi izi:

1. Zithunzi za PVC
2. Plasticizer
3. Wodzaza
4. Pigment
5. Stabilizers ndi co-stabilizers
6. Mafuta
7. Zowonjezera (zoletsa moto, zotengera UV, etc.)

Kusankhidwa kwa Plasticizer

Mapulasitiki nthawi zonse amawonjezedwa ku mawaya & kusungunula chingwe ndi ma jekete kuti awonjezere kusinthasintha ndikuchepetsa brittleness.Ndikofunika kuti pulasitiki yogwiritsidwa ntchito ikhale yogwirizana kwambiri ndi PVC, kusinthasintha kochepa, kukalamba kwabwino, komanso kukhala opanda electrolyte.Kupitilira izi, mapulasitiki amasankhidwa ndi zofunikira za chinthu chomalizidwa.Mwachitsanzo, chinthu chomwe chimagwiritsidwa ntchito panja kwa nthawi yayitali chingafunike pulasitiki yokhala ndi mawonekedwe abwino anyengo kuposa momwe munthu angasankhire kuti agwiritse ntchito m'nyumba yekha.

General cholinga phthalate esters mongaDOP,DINP,ndiDIDPNthawi zambiri amagwiritsidwa ntchito ngati mapulasitiki opangira mawaya ndi zingwe chifukwa cha malo awo ochulukirapo, zida zamakina abwino, komanso mphamvu zamagetsi zamagetsi.Zithunzi za TOTMamaonedwa kuti ndi oyenera kwambiri kutentha kwapamwamba chifukwa cha kusinthasintha kwake kochepa.Mankhwala a PVC opangira kutentha pang'ono amatha kuchita bwino ndi mapulasitiki mongaDOAkapenaDOSamene kusunga otsika kutentha kusinthasintha bwino.Mafuta a Soybean Epoxidized (ESO)Nthawi zambiri amagwiritsidwa ntchito ngati co-plasticizer ndi stabilizer, popeza imawonjezera kusinthika kwamafuta ndi kukhazikika kwa chithunzi mukaphatikizidwa ndi Ca/Zn kapena Ba/Zn stabilizers.

Mapulasitiki mumakampani a waya ndi chingwe nthawi zambiri amakhazikika ndi phenolic antioxidant kuti apititse patsogolo ukalamba.Bisphenol A ndi stabilizer wamba yomwe imagwiritsidwa ntchito mumitundu yosiyanasiyana ya 0.3 - 0.5% pachifukwa ichi.

Ma Filler Omwe Amagwiritsidwa Ntchito Nthawi zambiri

Zodzaza zimagwiritsidwa ntchito popanga mawaya & chingwe kuti muchepetse mtengo wapawiri pomwe mukuwongolera zamagetsi kapena thupi.Zodzaza zimatha kukhudza kusintha kwa kutentha komanso kutenthetsa kwamafuta.Calcium carbonate ndiye chodzaza chofala kwambiri pazifukwa izi.Nthawi zina silika amagwiritsidwanso ntchito.

Nkhumba mu Waya ndi Chingwe

Ma pigment amawonjezedwa kuti azitha kusiyanitsa mitundu.TiO2chonyamulira chamitundu chomwe chimagwiritsidwa ntchito kwambiri.

Mafuta

Mafuta opangira waya ndi chingwe amatha kukhala akunja kapena amkati, ndipo amagwiritsidwa ntchito kuthandizira kuchepetsa PVC kumamatira pazitsulo zotentha za zida zopangira.Plasticizers okha amatha kukhala ngati mafuta amkati, komanso Calcium Stearate.Mafuta oledzeretsa, sera, parafini ndi PEGs zitha kugwiritsidwa ntchito powonjezera mafuta.

Zowonjezera Zowonjezera mu Waya & Chingwe

Zowonjezera zimagwiritsidwa ntchito popereka katundu wapadera wofunikira kuti agwiritse ntchito kumapeto kwa chinthucho, mwachitsanzo, kutentha kwa moto kapena kukana kutentha ndi dzuwa kapena tizilombo toyambitsa matenda.Lawi retardancy ndi chofunika wamba pa mawaya ndi chingwe formulations.Zowonjezera monga ATO ndizothandiza kuchepetsa moto.Zopangira pulasitiki zomwe zimagwiritsidwa ntchito monga phosphoric esters zimathanso kupereka zinthu zoletsa moto.Ma UV-absorbers amatha kuwonjezeredwa kuti agwiritse ntchito kunja kuti apewe kutentha ndi dzuwa.Carbon Black imateteza ku kuwala, koma pokhapokha ngati mukupanga gulu lakuda kapena lakuda.Kwa mitundu yowala kapena yowonekera, UV-Absorbers yochokera kapena Benzophenone angagwiritsidwe ntchito.Ma biocides amawonjezeredwa kuti ateteze mankhwala a PVC kuti asawonongeke ndi bowa ndi tizilombo tating'onoting'ono.OBPA (10′,10′-0xybisphenoazine) imagwiritsidwa ntchito pafupipafupi ndipo imatha kugulidwa kale kusungunuka mu plasticizer.

Kupanga Chitsanzo

Pansipa pali chitsanzo cha zoyambira zoyambira pakupanga mawaya a PVC: