Ua haujlwm kub ntawm PPR yeeb nkab

Txij li thaum polypropylene yog ib tug raug crystalline polymer, thiab nws yaj viscosity yog rhiab heev rau qhov kub thiab txias, kev tswj kub yog ib qho tseem ceeb heev nyob rau hauv lub extrusion molding ntawm PP-R kav. Lub molding kub yog feem ntau tswj ntawm 210 ~ 260 degree, thiab extrusion kub siab dhau heev lawm, uas yuav ua rau cov khoom nyob rau hauv lub tuag, uas yuav ua rau degradation ntawm raw khoom thiab txo cov kev ua tau zoo ntawm cov yeeb nkab khoom.