Iikhompawundi zePVC zisekelwe kudibaniso lwe-PVC polymer RESIN kunye nezongezo ezinika ifomula efunekayo ekusetyenzisweni kokugqibela (Iipipe okanye iiRigid Profiles okanye iiFlexible Profiles okanye iiSheets). Le khompawundi yenziwa ngokudibanisa ngokusondeleyo izithako, ezithi kamva ziguqulwe zibe yinto "efakwe ijeli" phantsi kwempembelelo yobushushu kunye namandla okucheba. Ngokuxhomekeke kuhlobo lwePVC kunye nezongezo, ikhompawundi ngaphambi kokufakwa ijeli inokuba yipowder ehamba ngokukhululekileyo (eyaziwa ngokuba yi-dry blend) okanye ulwelo ngendlela ye-paste okanye isisombululo.
Iikhompawundi zePVC xa zenziwe, kusetyenziswa iiplastiki, zibe zizinto eziguquguqukayo, ezidla ngokubizwa ngokuba yiPVC-P.
Iikhompawundi zePVC xa zenziwe ngaphandle kweplastiki ezisetyenziswa ngokuqinileyo zibizwa ngokuba yiPVC-U.
Ukuhlanganiswa kwePVC kungachazwa ngolu hlobo lulandelayo:
Umgubo womxube owomileyo wePVC oqinileyo (obizwa ngokuba yiResin), okwanazo nezinye izinto ezifana neziqinisi, izongezo, izizalisi, izinto zokuqinisa, kunye nezinto ezithintela ilangatye, kufuneka zidityaniswe kakhulu kumatshini odibanisa izinto. Umxube osasaza izinto kunye nosasaza izinto ubalulekile, kwaye konke oku kuhambelana nemida yobushushu echazwe kakuhle.
Ngokwendlela esetyenzisiweyo, i-PVC resin, i-plasticizer, i-Filler, i-stabilizer kunye nezinye izinto ezincedisayo zifakwa kwi-hot mixer mixing. Emva kwemizuzu eyi-6-10, yikhuphe kwi-hot mixer (imizuzu eyi-6-10) ukuze uyixube kwangaphambili. I-PVC compound kufuneka isebenzise i-hot mixer ukuthintela ukuba izinto zinamathele emva kwe-hot mixer.
Izinto zomxube emva kokufakelwa iplastiki, ukuxuba kunye nokusasazwa ngokulinganayo malunga ne-155°C-165°C emva koko zifakwa kumxube obandayo. Umxube wePVC onyibilikayo emva koko ufakwa kwi-pellet. Emva kokufakelwa kwi-pellet, ubushushu be-granules bunokwehliswa bube yi-35°C-40°C. Emva koko emva kwesihluzo esishukumayo esipholileyo ngomoya, ubushushu be-particle buyehla bube ngaphantsi kobushushu begumbi ukuze buthunyelwe kwisisele semveliso yokugqibela ukuze ipakishwe.
Ixesha lokuthumela: Novemba-11-2022