Chlorinated polyethylene (CPE) mākou i kamaʻāina

I ko mākou ola, ʻoi aku ka nui o ka CPE a me PVC. ʻO ka polyethylene chlorinated he mea polymer saturated me kahi ʻano pauka keʻokeʻo, ʻaʻohe mea ʻawaʻawa a ʻono ʻole, a maikaʻi loa ke kūʻē ʻana i ka wā, ke kūʻē ozone, ke kūpaʻa kemika a me ke kūpaʻa ʻelemakule. ʻO ka hana, me ke kūpaʻa aila maikaʻi, ka pale ahi a me nā waiwai kala. ʻO ka ʻoʻoleʻa maikaʻi (hiki ke maʻalahi i -30°C), kūpono maikaʻi me nā mea polymer ʻē aʻe, a me ka wela decomposition kiʻekiʻe. ʻO ka polyethylene chlorinated he mea polymer i hana ʻia mai ka polyethylene kiʻekiʻe kiʻekiʻe (HDPE) ma o ka hopena hoʻololi chlorination. Wahi a nā ʻano hana like ʻole a me ka hoʻohana ʻana, hiki ke hoʻokaʻawale ʻia ka polyethylene chlorinated i ʻelua mau ʻāpana: resin-type chlorinated polyethylene (CPE) a me elastomer-type chlorinated polyethylene (CM). Ma waho aʻe o ka hoʻohana wale ʻia, hiki ke hui pū ʻia nā resins thermoplastic me ka polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS a me ka polyurethane (PU). I loko o ka ʻoihana pāpaʻi, hiki ke hoʻohana ʻia ka CPE ma ke ʻano he kiʻekiʻe kiʻekiʻe, kiʻekiʻe kiʻekiʻe kiʻekiʻe o ke kopa kūikawā, a hiki ke hoʻohana pū ʻia me ka ethylene-propylene rubber (EPR), butyl rubber (IIR), nitrile rubber (NBR), chlorosulfonated polyethylene ( CSM), etc. Hoʻohana ʻia nā huila ʻē aʻe.
I nā makahiki 1960, ua hoʻomohala mua ka hui German Hoechst a hoʻokō i ka hana ʻoihana. Ua hoʻomaka koʻu ʻāina e hoʻomohala i ka polyethylene chlorinated i ka hopena o 1970s. ʻO ka "Aqueous Phase Suspension Synthesis of CPE Technology" i hoʻomohala mua ʻia e ka Anhui Chemical Industry Research Institute, a ua kūkulu ʻia nā mea hana o 500-1000t/a me nā unahi like ʻole ma Wuhu, Anhui, Taicang, Jiangsu, a me Weifang, Shandong .
ʻO kaʻaila kū'ē o CPE he awelika, ma waena o ka maikaʻi o ke kū'ēʻana i kaʻaila ASTM No. ʻoi aku ka maikaʻi o ke kū'ēʻana i kaʻaila ASTM No. 3,ʻoi aku ka maikaʻi ma mua o CR, e like me CSM.
Loaʻa i ka CPE ka chlorine, nona nā waiwai pale ahi maikaʻi loa a loaʻa nā ʻano o ke ahi a me ka anti-dripping. Hiki ke hoʻohui ʻia me ka antimony-based flame retardant, chlorinated paraffin, a me Al(OH)3 i kahi ratio kūpono e loaʻa ai kahi mea pale ahi me ka hana maikaʻi loa i ka lapalapa ahi a me ke kumu kūʻai haʻahaʻa.
ʻAʻole ʻawaʻawa ʻo CPE, ʻaʻohe metala kaumaha a me PAHS, a hoʻokō pono i nā koi palekana kaiapuni.
He kiʻekiʻe ka hoʻopiha piha ʻana o CPE a hiki ke hana ʻia i nā huahana e hoʻokō i nā koi o ka hana. CPE i maikai processability, Mooney viscosity (ML121 1 + 4) mea ma waena o 50-100, a he nui nā māka e koho mai.