He aha nā poho e loaʻa mai i ka haʻahaʻa haʻahaʻa chlorinated polyethylene CPE i ka hana PVC?

ʻO ka chlorinated polyethylene (CPE) he huahana hoʻololi chlorinated o ka polyethylene kiʻekiʻe kiʻekiʻe (HDPE), i hoʻohana ʻia ma ke ʻano he mea hoʻololi hoʻololi no PVC, ʻO ka maʻi chlorine o CPE pono ma waena o 35-38%. Ma muli o kona kūpaʻa maikaʻi loa i ka wā, ke kū anuanu, ke kū ʻana o ke ahi, ka pale ʻana i ka aila, ke kūpaʻa hopena (ʻo CPE he elastomer), a me ke kūpaʻa kemika.
ʻO ka chlorinated polyethylene (CPE) he huahana hoʻololi chlorinated o ka polyethylene kiʻekiʻe kiʻekiʻe (HDPE), i hoʻohana ʻia ma ke ʻano he mea hoʻololi hoʻololi no PVC, ʻO ka maʻi chlorine o CPE pono ma waena o 35-38%. Ma muli o kona kūpaʻa maikaʻi ʻana i ka wā, ke kū anuanu, ke kūpaʻa ahi, ka pale ʻana i ka ʻaila, ka hopena o ka hopena (CPE he elastomer), a me ka paʻa kemika, a me kona kūlike maikaʻi me PVC, ua lilo ʻo CPE i mea hoʻololi i hoʻohana pinepine ʻia ma PVC. hana ʻana.
1 Hoʻonohonoho Molecular o HDPE
Ma muli o nā kūlana kaʻina hana like ʻole i ka hopena polymerization o PE, aia kekahi mau ʻokoʻa i ka hoʻonohonoho molecular a me nā waiwai o kāna polymer HDPE. ʻO nā waiwai o CPE ma hope o ka chlorination o HDPE me nā waiwai like ʻole. Pono nā mea hana CPE e koho i nā resins pauka kūikawā HDPE kūpono i mea e hana ai i nā resins CPE kūpono.
2. Nā kūlana chlorination, ʻo ia hoʻi ke kaʻina hana chlorination
ʻO CPE, ma ke ʻano he mea hoʻololi hoʻololi PVC, hana maʻamau ʻia e ka chlorination reaction me ka hoʻohana ʻana i ke ʻano chlorination aqueous suspension. ʻO nā kūlana koʻikoʻi o kēia kaʻina chlorination ʻo ia ka ikehu māmā, ka mea hoʻomaka, ke kaomi ʻana i ka hopena, ka mahana o ka hopena, ka manawa pane, a me nā kūlana hoʻohālikelike neutralization. He mea maʻalahi ke kumu o ka PE chlorination, akā ʻoi aku ka paʻakikī o ka mīkini chlorination.
Ma muli o ka liʻiliʻi liʻiliʻi o ka hoʻopukapuka ʻana i nā mea hana no ka hana ʻana i ka CPE, ua hoʻopuehu ʻia nā mea kanu CPE liʻiliʻi liʻiliʻi ma Kina. ʻAʻole wale kēia e hoʻohaumia i ke kaiaola, akā ʻo ia kekahi o nā kumu nui o ka paʻa ʻole o ka maikaʻi CPE.
I kēia manawa, aia ka nui o nā CPE haʻahaʻa haʻahaʻa ma ka mākeke. ʻO ka maʻamau, ʻelua ʻano o ka CPE haʻahaʻa haʻahaʻa. ʻO kekahi ma muli o kekahi mau mea kanu i loaʻa ʻole nā ​​kūlana ʻenehana a me nā kaʻina chlorination kahiko. ʻO kekahi ala ʻē aʻe ʻo ka hui ʻana i kahi nui o ka calcium carbonate a i ʻole ka pauka talc i CPE e komo i ka hoʻokūkū kūpono ʻole.