PVC yeeb nkab (muab faib rau PVC-U yeeb nkab, PVC-M yeeb nkab thiab PVC-O yeeb nkab) Rigid polyvinyl chloride yeeb nkab yog ua los ntawm polyvinyl chloride resin, stabilizer, lubricant, thiab lwm yam thiab ces extruded los ntawm kub nias. Cov yeeb nkab yas thaum ntxov tsim thiab siv.
PVC-U yeeb nkab muaj zog corrosion kuj, kev sib txuas yooj yim, tus nqi qis thiab kev ntxhib los mos, tab sis vim yog exudation ntawm PVC-U monomer thiab additives, nws tsuas yog tsim rau cov dej xa dej nrog qhov ntsuas kub tsis tshaj 45 degree. Cov kav dej yas yog siv rau hauv cov kav dej, dej khib nyiab, tshuaj, cua sov thiab dej txias, khoom noj khoom haus, kua ultrapure, slurries, gases, compressed cua thiab lub tshuab nqus tsev siv.
PVC-O yeeb nkab, Suav lub npe yog biaxially oriented polyvinyl chloride, yog qhov tseeb evolution ntawm PVC yeeb nkab, cov yeeb nkab tsim los ntawm tshwj xeeb orientation processing technology, PVC-U yeeb nkab tsim los ntawm extrusion txoj kev yog raug rau axial stretching thiab txoj kab uas hla. saw PVC molecules nyob rau hauv cov yeeb nkab yog tsis tu ncua txheej txheem nyob rau hauv lub biaxial kev taw qhia, thiab ib tug tshiab hom PVC yeeb nkab nrog lub zog siab, siab toughness, muaj kev cuam tshuam tsis kam thiab qaug zog kuj.