He aha nā pilikia ma ka mākeke kōkua hana PVC?

1. Aia nō kekahi ʻokoʻa ma waena o nā mea kōkua hana PVC kūloko a me nā huahana haole, a ʻaʻole i loaʻa i nā kumukūʻai haʻahaʻa kahi pōmaikaʻi nui i ka hoʻokūkū mākeke.
ʻOiai he mau pono ʻāina a me ke kumukūʻai ko nā huahana kūloko i ka hoʻokūkū mākeke, aia kekahi mau hakahaka i ka hana huahana, nā ʻano like ʻole, ke kūpaʻa, a me nā ʻano ʻē aʻe i hoʻohālikelike ʻia me nā huahana haole. Pili kēia i ka hoʻi hope ʻana o kā mākou ʻano huahana, ʻenehana hana, hana ʻana, a me ka ʻenehana ma hope o ka mālama ʻana. Ua ʻike piha kekahi mau ʻoihana kūloko i kēia mau pilikia a ua hoʻokumu i nā pilina hana like me nā ʻoihana noiʻi, nā ʻoihana noiʻi a me ka hoʻomohala ʻana, a ua hana i ka noiʻi ʻana i nā mea hoʻohui plastik.
2. He ʻokoʻa nā hale hana liʻiliʻi a ʻaʻohe ʻoihana alakaʻi me kahi kūlana paʻa, e alakaʻi ana i ka hoʻokūkū haunaele ma ka mākeke.
I kēia manawa, aia ma kahi o 30 mau mea hana ACR kūloko, akā ʻehā wale nō o lākou i hana nui ʻia (me ka hiki ke hoʻokomo ʻia i kēlā me kēia makahiki ma mua o 5000 tons). Ua hoʻokumu nā huahana o kēia mau ʻoihana nui i kahi kiʻi maikaʻi ma nā mākeke kūloko a me nā mākeke honua, me ka nānā ʻole i ke ʻano a me ka maikaʻi o nā huahana. Akā i nā makahiki ʻelua i hala iho nei, me ka pōmaikaʻi o ka ʻoihana hana PVC, ua holo wikiwiki kekahi mau hale hana liʻiliʻi ACR me ka hiki ke hana ma lalo o 1000 tons i ka mākeke. Ma muli o kā lākou lako hana maʻalahi a me ka paʻa ʻole o ka huahana, hiki i kēia mau ʻoihana ke ola ma ka hoʻohana ʻana i ka hoʻolei haʻahaʻa haʻahaʻa, e hopena ana i ka hoʻokūkū kumukūʻai ikaika ma ka mākeke kūloko. Ua hoʻopiha koke kekahi mau huahana haʻahaʻa a me nā kūlana haʻahaʻa i ka mākeke, e lawe mai ana i nā hopena maikaʻi ʻole i nā ʻoihana hana ma hope a lawe mai i nā hopena maikaʻi ʻole i ka hoʻomohala ʻana o ka ʻoihana. Manaʻo ʻia e alakaʻi ka Plastic Processing Association i ka hoʻokumu ʻana i ka ACR Additive Industry Association, e hoʻohui i nā kūlana ʻoihana, e hoʻoponopono i ka hoʻomohala ʻana o ka ʻoihana, e hoʻopau i nā huahana hoʻopunipuni a me nā huahana haʻahaʻa, a e hōʻemi i ka hoʻokūkū haunaele. I ka manawa like, pono nā ʻoihana nui e hoʻonui i kā lākou hana hoʻomohala huahana, hoʻoponopono i ke ʻano o kā lākou huahana, a mālama i ka hoʻomohala synchronous me nā huahana haole like.
3. Ua alakaʻi ka piʻi ʻana o ke kumukūʻai o ka ʻaila maka i ka piʻi ʻana o ke kumukūʻai o nā mea maka a me ka emi ʻana o ka loaʻa kālā o nā ʻoihana.
Ma muli o ke piʻi mau ʻana o nā kumukūʻai aila maka honua, ua piʻi nui nā mea maka nui a pau no ka hana ʻana o ACR, ʻo ia hoʻi ka methyl methacrylate a me ka acrylic ester. Eia nō naʻe, ua emi nā mea kūʻai aku ma hope o ka piʻi ʻana o ke kumukūʻai huahana, e hopena ana i ka emi ʻana o ka loaʻa kālā no nā ʻoihana hana ACR. Ua alakaʻi kēia i kahi kūlana pohō no ka ʻoihana holoʻokoʻa i ka makahiki 2003 a me 2004. I kēia manawa, ma muli o ka paʻa ʻana o nā kumukūʻai mea maka, ua hōʻike ka ʻoihana i kahi ʻano maikaʻi o ka loaʻa kālā.
4. ʻO ka nele o nā talena ʻoihana, ʻaʻole hiki i ka noiʻi ʻoihana ke hoʻomohala hohonu
Ma muli o ka ʻoiaʻiʻo he mea hoʻohui mea polymer ka mea hoʻohui ACR i hoʻomohala wale ʻia ma Kina i ka hopena o nā makahiki 1990, he kakaikahi wale nō kāna mau ʻāpana noiʻi a me ka hoʻomohala ʻana a me nā mea noiʻi i hoʻohālikelike ʻia me nā mea hoʻohui ʻē aʻe e like me nā plasticizers a me nā mea pale ahi ma Kina. ʻOiai inā he mau ʻoihana noiʻi pākahi e hoʻomohala ana iā ia, ʻo ka nele o ka hoʻohui maikaʻi ma waena o nā mea noiʻi a me ka ʻoihana hana plastic ua alakaʻi i ka hiki ʻole ke hoʻoikaika i ka noiʻi huahana. I kēia manawa, ʻo ka hoʻomohala ʻana o ACR ma Kina e hilinaʻi wale ana i nā ʻoihana noiʻi nona kekahi mau ʻoihana e hoʻonohonoho a hoʻomohala. ʻOiai ua loaʻa kekahi mau hoʻokō, aia kahi ʻokoʻa nui ma waena o nā hoa kūloko a me nā haole e pili ana i ke kālā noiʻi, nā lako noiʻi a me ka hoʻomohala ʻana, a me ka maikaʻi o ka noiʻi a me ka hoʻomohala ʻana. Inā ʻaʻole i hoʻomaikaʻi nui ʻia kēia kūlana, ʻaʻole maopopo inā hiki i nā mea kōkua hana ke kūpaʻa i ka mākeke kūloko i ka wā e hiki mai ana.