(1) CPE
ʻO ka polyethylene chlorinated (CPE) kahi huahana pauka o ka chlorination hoʻokuʻu ʻia o HDPE i loko o ka pae wai. Me ka piʻi ʻana o ke kekelē chlorination, lilo mālie ka HDPE crystalline mua i elastomer amorphous. ʻO ka CPE i hoʻohana ʻia ma ke ʻano he mea hoʻoikaika maʻamau he 25-45% ka nui o ka chlorine. Loaʻa i ka CPE kahi ākea o nā kumu a me nā kumukūʻai haʻahaʻa. Ma waho aʻe o kona hopena hoʻoikaika, loaʻa iā ia ke kūpaʻa anu, ke kūpaʻa i ke aniau, ke kūpaʻa lapalapa, a me ke kūpaʻa kemika. I kēia manawa, ʻo CPE ka mea hoʻololi hopena nui ma Kina, ʻoi aku hoʻi i ka hana ʻana o nā paipu PVC a me nā profiles, a hoʻohana ka hapa nui o nā hale hana i ka CPE. ʻO ka nui o ka hoʻohui maʻamau he 5-15 mau ʻāpana. Hiki ke hoʻohana ʻia ka CPE me nā mea hoʻoikaika ʻē aʻe, e like me ka rubber a me EVA, e hoʻokō i nā hopena maikaʻi aʻe, akā ʻaʻole kūpaʻa nā mea hoʻohui rubber i ka ʻelemakule.
(2) ACR
He copolymer ʻo ACR o nā monomers e like me ka methyl methacrylate a me ka acrylic ester. ʻO ia ka mea hoʻololi hopena maikaʻi loa i hoʻomohala ʻia i nā makahiki i hala iho nei a hiki ke hoʻonui i ka ikaika hopena o nā mea i nā ʻumi manawa. No ACR ka mea hoʻololi hopena o ke ʻano o ka pūpū-kiko, nona ka pūpū i haku ʻia me ka methyl methacrylate ethyl acrylate polymer, a me kahi elastomer rubber i hana ʻia ma ke keʻa ʻana me ka butyl acrylate ma ke ʻano he ʻāpana kaulahao koʻikoʻi i hoʻolaha ʻia ma ka papa o loko o nā ʻāpana. He kūpono loa ia no ka hoʻololi hopena o nā huahana plastik PVC no ka hoʻohana ʻana i waho, ʻo ka hoʻohana ʻana iā ACR ma ke ʻano he mea hoʻololi hopena i nā ʻaoʻao puka a me nā puka makani plastik PVC he mau ʻano o ka hana hana maikaʻi, ka ʻili laumania, ke kūpaʻa maikaʻi i ka ʻelemakule, a me ka ikaika kihi wili kiʻekiʻe i hoʻohālikelike ʻia me nā mea hoʻololi ʻē aʻe, akā ʻoi aku ke kiʻekiʻe o ke kumukūʻai ma mua o CPE.
(3) MBS
He copolymer ʻo MBS o ʻekolu monomers: methyl methacrylate, butadiene, a me styrene. ʻO ke ʻano solubility o MBS ma waena o 94 a me 9.5, kokoke i ke ʻano solubility o PVC. No laila, he kūpono maikaʻi kona me PVC. ʻO kona hiʻohiʻona nui loa, ma hope o ka hoʻohui ʻana i ka PVC, hiki ke hana ʻia i huahana moakaka. Ma ke ʻano laulā, ʻo ka hoʻohui ʻana i 10-17 mau ʻāpana i ka PVC hiki ke hoʻonui i kona ikaika hopena ma 6-15 mau manawa. Eia naʻe, i ka wā e ʻoi aku ai ka nui o MBS i hoʻohui ʻia ma mua o 30 mau ʻāpana, e emi maoli ana ka ikaika hopena o PVC. Loaʻa iā MBS ponoʻī ka hana hopena maikaʻi, ka transparency maikaʻi, a me ka transmittance ma luna o 90%. ʻOiai e hoʻomaikaʻi ana i ka hana hopena, ʻaʻohe ona hopena i nā waiwai ʻē aʻe o ka resin, e like me ka ikaika tensile a me ka elongation i ka haki. He pipiʻi ʻo MBS a hoʻohana pinepine ʻia me nā mea hoʻololi hopena ʻē aʻe e like me EAV, CPE, SBS, a pēlā aku. He pale wela maikaʻi ʻole ʻo MBS a me ke kūʻē ʻana i ka wā, e lilo ia i mea kūpono ʻole no ka hoʻohana lōʻihi ma waho. ʻAʻole hoʻohana pinepine ʻia ia ma ke ʻano he mea hoʻololi hopena i ka hana ʻana o nā puka plastik a me nā puka makani.
(4) SBS
ʻO SBS kahi copolymer poloka ternary o styrene, butadiene, a me styrene, i ʻike ʻia hoʻi ʻo thermoplastic styrene butadiene rubber. No nā elastomers thermoplastic a hiki ke hoʻokaʻawale ʻia kona ʻano i ʻelua ʻano: ʻano hōkū a me ka linear. ʻO ka lakio o ka styrene i ka butadiene ma SBS he 30/70, 40/60, 28/72, a me 48/52. Hoʻohana nui ʻia ma ke ʻano he mea hoʻololi hopena no HDPE, PP, a me PS, me kahi dosage o 5-15 mau ʻāpana. ʻO ka hana nui o SBS ka hoʻomaikaʻi ʻana i kona kūpaʻa hopena haʻahaʻa. He kūpaʻa maikaʻi ʻole ka SBS i ka wā a ʻaʻole kūpono no nā huahana hoʻohana waho lōʻihi.
(5) ABS
He copolymer ternary ʻo ABS o styrene (40% -50%), butadiene (25% -30%), a me acrylonitrile (25% -30%), i hoʻohana nui ʻia e like me nā plastics ʻenekinia a hoʻohana ʻia hoʻi no ka hoʻololi ʻana i ka hopena PVC, me nā hopena hoʻololi hopena haʻahaʻa haʻahaʻa maikaʻi. Ke hiki ka nui o ka ABS i hoʻohui ʻia i 50 mau ʻāpana, hiki ke like ka ikaika o ka hopena o PVC me ko ABS maʻemaʻe. ʻO ka nui o ka ABS i hoʻohui ʻia ma ke ʻano he 5-20 mau ʻāpana. He kūʻē maikaʻi ʻole ka ABS i ka wā a ʻaʻole kūpono no ka hoʻohana lōʻihi ʻana i waho i nā huahana. ʻAʻole hoʻohana pinepine ʻia ia ma ke ʻano he mea hoʻololi hopena i ka hana ʻana o nā puka plastik a me nā puka makani.
(6) EVA
He copolymer ʻo EVA o ka ethylene a me ka vinyl acetate, a ʻo ka hoʻokomo ʻana o ka vinyl acetate e hoʻololi i ka crystallinity o ka polyethylene. He ʻokoʻa loa ka nui o ka vinyl acetate, a he ʻokoʻa ka refractive index o EVA a me PVC, e paʻakikī ai ka loaʻa ʻana o nā huahana moakaka. No laila, hoʻohana pinepine ʻia ʻo EVA me nā resins pale hopena ʻē aʻe. ʻO ka nui o ka EVA i hoʻohui ʻia he emi ma mua o 10 mau ʻāpana.
Ka manawa hoʻouna: Malaki-15-2024
