Tonse tikudziwa kuti kuuma kwa pamwamba pa zinthu za polypropylene kumawonjezeka ndi kuchuluka kwa zinthu, ndipo kumakhala ndi mphamvu yabwino yoletsa kukwawa, kotero kungagwiritsidwe ntchito nthawi zambiri, ndipo izi ndi zabwino zomwe zingabweretse pamapeto pake. Kuti tiwongolere kuuma kwake komanso kusinthasintha kwake, tidzawonjezera zinthu za polyethylene ku bolodi la polypropylene pp.
Pambuyo poti bolodi la PP lomwe likugulitsidwa pamsika lawonjezeredwa ndi polyethylene kuti lipange polima, limatha kusinthidwa mwachangu pakukana kutentha, kukana dzimbiri, komanso mphamvu ya makina, kotero likhoza kubweretsa chitsimikizo chabwino cha magwiridwe antchito. Zachidziwikire, momwe mungasankhire bwino ndikofunikira kwambiri, ndipo zabwino zomwe zingabweretse pamapeto pake zidzakhala zowonekera kwambiri, kotero chitetezo chomwe chidzapezedwa chidzakhala chabwino.
Kawirikawiri, kuuma kwa pamwamba ndi kukana kukanda kwa pepala la PP ndikwabwino, ndipo zotsatira zake zimakhala bwino mukawonjezera ulusi wagalasi. Mitundu yonse ya mapepala a polypropylene amitundu yosiyanasiyana ali ndi makhalidwe ofanana, kotero angagwiritsidwe ntchito ngati imodzi mwa mapulasitiki abwino kwambiri nthawi iliyonse, kupereka chitsimikizo chowonjezereka pakupanga zida zosiyanasiyana.
Nthawi yotumizira: Feb-15-2023
