Cov khoom siv raw rau kev tsim cov thawv ntim (cov hnab ntim khoom) feem ntau yog tsim los ntawm PP thiab PE. Vim tias lawv qhov kev tiv thaiv loj thiab kev nqus dej tsis zoo, lawv muaj feem cuam tshuam rau hluav taws xob zoo li qub! Thaum muaj cov khoom siv hluav taws xob thiab tawg hauv qhov chaw ua haujlwm ntawm cov khoom ntim khoom loj lossis cov khoom siv thauj khoom, nws muaj peev xwm ua rau muaj kev phom sij txaus ntshai xws li hluav taws xob hluav taws xob hluav taws xob thiab tawg.
GB12670-90 polypropylene cob qhia cov kev cai, kev xeem txoj kev, tshuaj xyuas cov hauv paus ntsiab lus thiab cim, ntim, tsheb thauj mus los thiab cia yuav tsum tau ntawm polypropylene (PP). Tus qauv siv tau rau granular propylene homopolymer los yog copolymer npaj los ntawm polymerization ntawm propylene los yog propylene thiab ethylene nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst thiab muaj additives. Cov qauv no tsis siv rau pigmented, sau, ntxiv dag zog, sib xyaw polypropylene resins thiab masterbatch pellets. Cov kev cai: Polypropylene resin yog xim ntuj, cylindrical hais, qhov luaj li cas yuav tsum yog 2-5mm nyob rau hauv ib qho kev taw qhia, tsis muaj txhua yam impurities. Rau polypropylene resin nrog kev tu cev, nws yuav tsum ua kom tau raws li qhov xav tau ntawm GB9693. Cov ntsuas zoo ntawm polypropylene resin yuav tsum ua raws li cov qauv sib xws.
Tsis tas li ntawd, raws li cov qauv ntawm CLC thiab IEC, daim ntawv thov ntau yam ntawm cov khoom siv tiv thaiv zoo li qub yog qhov dav heev. Ntxiv nrog rau kev siv cov khoom siv hluav taws xob qis qis hauv qhov chaw ua haujlwm, cov hnab ntim loj los tiv thaiv zoo li qub yuav tsum tau siv. Piv txwv li, nyob rau hauv cov xim, number case thiab kua nplaum ntau lawm cog, C hnab yog siv rau lub ntim ntawm tej yam uas tsis yog-flammables, xws li titanium dioxide, talcum hmoov thiab pigments, uas yuav tsum tau anti-static thiab conductive ton hnab.