Elokuqala ngqa lafunyanwa iPVC ngengozi ngo-1872 ngusokhemesti waseJamani, uEugen Baumann.Yadityaniswa njengeflaski yevinyl chloride yashiywa ityhilekile elangeni apho ipholima khona.
Ekupheleni kweminyaka yoo-1800 iqela loosomashishini baseJamani bagqiba ekubeni batyale imali kwaye benze izixa ezikhulu zeAcetylene, esetyenziswa njengamafutha kwizibane.Ngokunxuseneyo izisombululo zombane ziye zaya zisebenza kwaye kungekudala zagqitha kwimarike.Ngale Acetylene yayifumaneka ngobuninzi kunye nexabiso eliphantsi.
Ngowe-1912 ingcali yemichiza yaseJamani, uFritz Klatte, yalinga le nto yaza yayixuba ngehydrochloric acid (HCl).Le mpendulo iya kuvelisa i-vinyl chloride kwaye ingenayo injongo ecacileyo wayishiya kwishelufu.I-vinyl chloride eyenziwe ipolymer ngokuhamba kwexesha, uKlatte wayenenkampani awayeyisebenzela, i-Greisheim Electron, ukuze ayenze ipatent.Abazange bafumane naluphi na ukusetyenziswa kwayo kwaye i-patent yaphela ngo-1925.
Ngokuzimeleyo omnye usokhemisti eMelika, uWaldo Semon osebenza eBF Goodrich, wafumanisa iPVC.Wabona ukuba inokuba yinto efanelekileyo yeekhethini zeshawa kwaye bafaka i-patent.Enye yezona zinto zibalulekileyo yayikukuvalwa kwamanzi okwakhokelela kwiimeko ezininzi zokusetyenziswa kwaye iPVC yakhula ngokukhawuleza kwisabelo semarike.
Yintoni iPVC granule kwaye isetyenziswa phi?
I-PVC yimathiriyeli ekrwada engenakwenziwa yodwa xa kuthelekiswa nezinye izinto ezikrwada.Iikhompawundi ze-PVC ze-granules zisekelwe kwindibaniselwano ye-polymer kunye nezongezo ezinikezela ukuqulunqwa okuyimfuneko ekusetyenzisweni kokuphela.
Ingqungquthela ekurekhodeni i-additive concentration isekelwe kwiinxalenye ngekhulu le-PVC resin (phr).Ikhompawundi iveliswa ngokuxuba ngokusondeleyo kunye nezithako, ezithi emva koko ziguqulelwe kwinqaku le-gelled phantsi kwefuthe lobushushu (kunye ne-shear).
Iikhompawundi zePVC zinokuqulunqwa, kusetyenziswa iiplastiki, zibe yimathiriyeli eguquguqukayo, edla ngokubizwa ngokuba yiP-PVC.Iintlobo zePVC ezithambileyo okanye eziguquguqukayo zisetyenziswa kakhulu kwizihlangu, ishishini lentambo, umgangatho, umbhobho, into yokudlala kunye nokwenza iiglavu.
Iikhompawundi ngaphandle plasticizer izicelo engqongqo zityunjwe U-PVC.I-PVC eqinile isetyenziswa kakhulu kwimibhobho, iiprofayili zefestile, izigqubuthelo zodonga, njl.
Iikhompawundi ze-PVC kulula ukusetyenzwa ngokubumba inaliti, i-extrusion, ukubumba ukuvuthela kunye nomzobo onzulu.INPVC baye benza imixube PVC bhetyebhetye kunye flowability eliphezulu kakhulu, ilungele naliti ukubumba, kwakunye namanqaku viscous kakhulu extrusion.
Ixesha lokuposa: Jun-21-2021
