yintoni iPVC compound?

Iikhompawundi ze-PVC zisekelwe kwindibaniselwano ye-PVC ye-polymer RESIN kunye nezongezelelo ezinikezela ukuqulunqwa okuyimfuneko ekusetyenzisweni kokuphela (Imibhobho okanye iiProfayili eziqinileyo okanye iiProfayili eziguquguqukayo okanye iiSheets). Ikhompawundi yenziwe ngokuxuba ngokusondeleyo kunye nezithako, ezithi emva koko ziguqulelwe kwinqaku elithi "gelled" phantsi kwefuthe lobushushu kunye ne-shear force. Ngokuxhomekeke kuhlobo lwe-PVC kunye nezongezelelo, i-compound phambi kwe-gelation ingaba yi-powder-flowing powder (eyaziwa ngokuba ngumxube owomileyo) okanye i-liquid ngendlela ye-paste okanye isisombululo.

Iikhompawundi zePVC xa zenziwe, kusetyenziswa iiplastiki, zibe yimathiriyeli ebhetyebhetye, edla ngokubizwa ngokuba yiPVC-P.

I-PVC Compounds xa yenziwe ngaphandle kwe-plasticizer kwizicelo eziqinileyo zityunjwe i-PVC-U.

I-PVC Compounding inokushwankathelwa ngolu hlobo lulandelayo:

Umgubo oqinileyo wePVC womxube owomileyo (obizwa ngokuba yiResin), ekwaqulathe ezinye izinto ezinje ngezizinzi, izongezo, izihluzi, izincedisi, kunye nezithinteli zomlilo, kufuneka zixutywe ngamandla kumatshini wokudibanisa. Ukuxutywa kwe-dispersive kunye nokusabalalisa kubalulekile, kwaye konke kuhambelana nemida yokushisa echazwe kakuhle.

Ngokutsho kokuqulunqwa, i-resin ye-PVC, i-plasticizer, i-Filler, i-stabilizer kunye nezinye izinto ezincedisayo zifakwe kwi-mixer mixing mixing. Emva kwe-6-10 mins ukhuphe kwi-mixer ebandayo (imizuzu eyi-6-10) yokuxutywa kwangaphambili. Ikhompawundi yePVC kufuneka isebenzise isixhumi esibandayo ukuthintela ukunamathelana emva komxubi oshushu.

Umxube wezinto ezixutywe emva kweplastiki, ukuxuba kunye nokusabalalisa ngokulinganayo malunga ne-155 ° C-165 ° C emva koko ifakwe kumxube we-Cold. I-PVC enyibilikayo idibanisa i-pelletized. Emva kwe-pelletizing, ubushushu begranules bunokuhla ukuya kuma-35°C-40°C. Emva koko emva kwesefo eshukunyiswa ngumoya, iqondo lobushushu lesuntswana lehla ngaphantsi kweqondo lobushushu begumbi ukuze lithunyelwe kwisisele sokugqibela semveliso ukupakishwa.