Kodi Mitundu Yosiyanasiyana ya Polypropylene Ndi Chiyani?

Pali mitundu iwiri ikuluikulu ya polypropylene yomwe ilipo: homopolymers ndi copolymers. Ma copolymers amagawidwanso mu block copolymers ndi copolymers mwachisawawa.

Gulu lililonse limagwirizana ndi mapulogalamu ena kuposa ena. Polypropylene nthawi zambiri amatchedwa "chitsulo" chamakampani apulasitiki chifukwa cha njira zosiyanasiyana zomwe zingasinthidwe kapena kusinthidwa kuti zikwaniritse cholinga china.

Izi nthawi zambiri zimatheka mwa kuyambitsa zowonjezera zowonjezera kwa izo kapena kuzipanga mwanjira yapadera kwambiri. Kusinthasintha uku ndi chinthu chofunikira kwambiri.

Homopolymer polypropylenendi giredi yacholinga chambiri. Mutha kuganiza za izi ngati kusakhazikika kwa zinthu za polypropylene.Kuletsa copolymerpolypropylene ili ndi mayunitsi a co-monomer okonzedwa mu midadada (ndiko kuti, mwachizolowezi) ndipo amakhala ndi pakati pa 5% mpaka 15% ethylene.

Ethylene imathandizira zinthu zina, monga kukana kwamphamvu pomwe zowonjezera zina zimakulitsa zinthu zina.

Copolymer mwachisawawapolypropylene - mosiyana ndi block copolymer polypropylene - ili ndi mayunitsi a co-monomer omwe amakonzedwa mosagwirizana kapena mwachisawawa motsatira molekyulu ya polypropylene.

Nthawi zambiri amaphatikizidwa ndi kulikonse pakati pa 1% mpaka 7% ethylene ndipo amasankhidwa kuti agwiritse ntchito pomwe chinthu chosavuta, chomveka bwino chimafunidwa.