ʻO ka pepa PP he mea semi-crystalline. ʻOi aku ka paʻakikī a ʻoi aku ka nui o ka heheʻe ma mua o ka PE. Ma muli o ka palupalu loa o ka mahana homopolymer PP ma luna o 0C, nui nā mea pāʻoihana PP he copolymers maʻamau me ka 1 a i ka 4% ethylene a i ʻole nā copolymers clamp me nā mea ethylene kiʻekiʻe.
He haʻahaʻa haʻahaʻa haʻahaʻa ka pepa PP maʻemaʻe, maʻalahi ke weld a me ka hana ʻana, ʻoi aku ka maikaʻi o ke kūpaʻa kemika, ka pale ʻana i ka wela a me ke kū ʻana o ka hopena, ʻaʻohe mea ʻawaʻawa a ʻono ʻole, a ʻo ia kekahi o nā plastics ʻenekinia maikaʻi loa. ʻO nā kala nui he keʻokeʻo, microcomputer kala, a me nā kala ʻē aʻe hiki ke hoʻopili ʻia e like me nā koi o ka mea kūʻai aku. Nā noi: nā mea kūʻai wai a me ka alkali, nā mea hana pepa pp.
ʻO ka polypropylene (PP) extruded sheet he pepa palaka i hana ʻia e ka hoʻohui ʻana i nā mea hoʻohui hana like ʻole i ka resin PP ma o ka extrusion, calendering, hoʻomaha, ʻoki a me nā kaʻina hana ʻē aʻe.
ʻO ka fiber glass fiber reinforced PP (pepa FRPP): Ma hope o ka hoʻoikaika ʻia ʻana e 20% aniani fiber, ma waho aʻe o ka mālama ʻana i ka hana maikaʻi loa, ua pālua ʻia ka ikaika a me ka rigidity i ka hoʻohālikelike ʻia me PP, a he maikaʻi ke kūpaʻa wela a me ke ʻano haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa. Maikaʻi kūpono no ka fiber kemikal, chlor-alkali, petroleum, dyestuff, pesticide, meaʻai, lāʻau lapaʻau, ʻoihana māmā, metallurgy, sege treatment a me nā māla ʻē aʻe.
Ua hoʻohana maikaʻi ʻia ka pepa PPH i ka hana ʻana i nā pepa, a ʻo ka ʻenehana holomua i ke kūlana alakaʻi ma Kina. Hiki ke hoʻohana ʻia kēia mau huahana no nā papa kānana a me nā ipu ʻeha spiral, no ka fiber glass reinforced plastic winding lining sheets, petrochemical industry storage, transport and anti-corrosion system, power plant, water supply, water treatment and drainage system for water plants; a me nā mea kanu kila, nā mea hoʻoheheʻe uila Wehe lepo, holoi a me nā ʻōnaehana ea, etc.
Ka manawa hoʻouna: Feb-20-2023
