PVC tebchaw yog ua los ntawm kev sib xyaw ntawm PVC polymer RESIN thiab cov khoom siv ntxiv uas muab cov qauv tsim nyog rau kev siv kawg (Cov kav dej lossis Rigid Profiles lossis Flexible Profiles lossis Sheets).Lub compound yog tsim los ntawm intimately sib xyaw ua ke cov khoom xyaw, uas yog tom qab hloov dua siab tshiab rau hauv "gelled" tsab xov xwm nyob rau hauv lub zog ntawm tshav kub thiab shear quab yuam.Nyob ntawm seb hom PVC thiab cov khoom siv ntxiv, qhov sib xyaw ua ntej gelation tuaj yeem yog cov hmoov dawb-ntws (lub npe hu ua cov hmoov qhuav) los yog kua hauv daim ntawv muab tshuaj txhuam los yog tov.
PVC compounds thaum tsim, siv cov yas yas, rau hauv cov ntaub ntawv hloov tau, feem ntau hu ua PVC-P.
PVC Compounds thaum formulated yam tsis muaj plasticizer rau kev siv nruj yog tsim los ntawm PVC-U.
PVC Compounding tuaj yeem suav tau raws li hauv qab no:
Cov tawv tawv PVC qhuav hmoov hmoov (hu ua Resin), uas tseem muaj lwm yam khoom xws li stabilizers, additives, fillers, reinforcements, thiab nplaim taws retardants, yuav tsum tau sib xyaw ua ke hauv cov tshuab ua ke.Kev sib xyaw ua ke thiab kev faib tawm yog qhov tseem ceeb, thiab tag nrho ua raws li qhov ntsuas kub zoo.
Raws li kev tsim, PVC resin, plasticizer, Filler, stabilizer thiab lwm yam auxiliaries raug muab tso rau hauv qhov sib tov kub.Tom qab 6-10 feeb tawm mus rau hauv lub txias tov khoom (6-10 feeb) rau premixing.PVC compound yuav tsum siv lub tshuab txias txias los tiv thaiv cov khoom sib xyaw ua ke tom qab cov khoom kub kub.
Cov khoom sib tov tom qab plasticizing, sib tov thiab dispersing tusyees ntawm ib ncig ntawm 155 ° C-165 ° C yog ces pub rau lub Cold sib tov.Tom qab ntawd lub melting PVC compounding yog pelletized.Tom qab pelletizing, granules kub tuaj yeem poob rau 35 ° C-40 ° C.Tom qab ntawd tom qab cua txias vibrating sieve, particle kub poob qis hauv chav tsev kub kom xa mus rau qhov kawg khoom silo rau ntim.
Post lub sij hawm: Nov-11-2022