Minħabba l-viskożità għolja ta 'tidwib tas-CPVC, speċjalment fl-iffurmar ta' injezzjoni, huwa suxxettibbli għal ksur ta 'tidwib, għalhekk mhuwiex adattat li tuża biss xama' tal-paraffin tradizzjonali, aċidu stearic u sistemi ta 'lubrikazzjoni tas-sapun tal-metall. Fl-ipproċessar tal-estrużjoni tas-CPVC, peress li s-CPVC għandu tendenza li jaderixxi mal-wiċċ tal-metall tat-tagħmir tal-ipproċessar tal-post sħun-(speċjalment id-die u d-die), sabiex tiġi eliminata din l-adeżjoni, għandu jiġi miżjud lubrikant estern għall-formulazzjoni. Lubrikanti esterni u reżini CPVC għandhom ma jitħalltux.
In the CPVC molding process (especially the injection process), under the action of pressure, the mutual friction between the CPVC resins generates frictional heat. The generation of frictional heat is unfavorable to the molding process and must be controlled. Internal lubricants reduce the friction between resins during CPVC processing. The internal lubricant and CPVC resin should be compatible. It should be noted that the balance of internal and external lubrication in the formulation is key. Excessive internal lubrication will seriously affect "plasticization" and deteriorate the quality of products; excessive external lubrication will cause lubricant precipitation, and even lead to screw slippage and other phenomena that seriously affect normal production. The OP wax (montan ester wax) in the saponified wax is an ideal internal and external compound lubricant.
