Loaʻa i nā molekala polypropylene nā hui methyl, hiki ke hoʻokaʻawale ʻia i polypropylene isotactic, polypropylene atactic a me polypropylene syndiotactic e like me ka hoʻonohonoho ʻana o nā hui methyl. Ke hoʻonohonoho ʻia nā pūʻulu methyl ma ka ʻaoʻao like o ke kaulahao nui, ua kapa ʻia ʻo polypropylene isotactic; ina ua puunaue wale ia na hui methyl ma na aoao elua o ke kaulahao nui, ua kapaia ia he polypropylene atactic; ke hoʻonohonoho ʻia nā pūʻulu methyl ma nā ʻaoʻao ʻelua o ke kaulahao nui, ua kapa ʻia ʻo syndiotactic. polypropylene. I ka hana maʻamau o ka polypropylene resin, ʻo ka ʻike o ka hale isotactic (i kapa ʻia ʻo isotacticity) ma kahi o 95%, a ʻo ke koena he atactic a syndiotactic polypropylene. Hoʻokaʻawale ʻia ka resin polypropylene i kēia manawa ma Kina e like me ka melt index a me nā mea hoʻohui.
ʻO ka polypropylene Atactic kahi huahana o ka hana ʻana o ka polypropylene isotactic. Hoʻokumu ʻia ka polypropylene Atactic i ka hana ʻana o ka polypropylene isotactic, a ua hoʻokaʻawale ʻia ka polypropylene isotactic mai ka polypropylene atactic e kahi ala kaʻawale.
ʻO ka polypropylene Atactic kahi mea thermoplastic elastic nui me ka ikaika tensile maikaʻi. Hiki ke vulcanized e like me ka ethylene-propylene rubber.
Ka manawa hoʻouna: Feb-28-2023