He aha nā pilikia i ka mākeke kōkua hana PVC?

1. Aia kekahi ʻokoʻa ma waena o nā mea hana PVC kūloko a me nā huahana ʻē aʻe, a ʻaʻole i loaʻa i nā kumu kūʻai haʻahaʻa kahi pōmaikaʻi nui i ka hoʻokūkū mākeke.
ʻOiai ua loaʻa i nā huahana kūloko kekahi mau pono ʻāina a me nā kumukūʻai i ka hoʻokūkū mākeke, loaʻa iā mākou kekahi mau hakahaka i ka hana huahana, ʻano like ʻole, kūpaʻa, a me nā ʻano ʻē aʻe i hoʻohālikelike ʻia me nā huahana haole. Pili kēia i ka hope o kā mākou ʻano huahana, ʻenehana hana, hana, 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 pili me nā keʻena noiʻi, nā noiʻi a me nā ʻoihana hoʻomohala, a ua hana i ka noiʻi ʻana i nā mea hoʻohui plastik.
2. He ʻokoʻa nā ʻoihana 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 home, akā he 4 wale nō o lākou i hana nui (me ka hiki ke hoʻokomo makahiki ma luna o 5000 tons). Ua hoʻokumu nā huahana o kēia mau ʻoihana nui i kahi kiʻi maikaʻi ma nā mākeke kūloko a me ka honua, me ka nānā ʻole i nā ʻano huahana a me ka maikaʻi. 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 mana hana ma lalo o 1000 tons i ka mākeke. Ma muli o kā lākou mea hana maʻalahi a me ka paʻa ʻole o ka huahana, hiki i kēia mau ʻoihana ke ola wale me ka hoʻohana ʻana i ka hoʻokuʻu haʻahaʻa haʻahaʻa, e hopena ana i ka hoʻokūkū kūʻai ikaika ma ka mākeke kūloko. ʻO kekahi mau huahana haʻahaʻa haʻahaʻa a haʻahaʻa haʻahaʻa i kahe koke i ka mākeke, e lawe mai ana i nā hopena maikaʻi ʻole i nā ʻoihana hoʻoponopono lalo a lawe pū kekahi i nā hopena maikaʻi ʻole i ka hoʻomohala ʻana i ka ʻoihana. Manaʻo ʻia ʻo ka Plastic Processing Association e alakaʻi i ka hoʻokumu ʻana i ka ACR Additive Industry Association, hoʻohui i nā kūlana ʻoihana, hoʻoponopono i ka hoʻomohala ʻana i ka ʻoihana, hoʻopau i nā huahana hoʻopunipuni a me nā huahana haʻahaʻa, a hōʻemi i ka hoʻokūkū hoʻokūkū. I ka manawa like, pono e hoʻonui nā ʻoihana nui i kā lākou hoʻomohala huahana, hoʻoponopono i kā lākou ʻano huahana, a mālama i ka hoʻomohala synchronous me nā huahana like ʻole.
3. ʻO ka piʻi ʻana o nā kumukūʻai aila maʻemaʻe ua alakaʻi i ka piʻi ʻana o nā kumu kūʻai kumu a me ka emi ʻana o ka loaʻa kālā.
Ma muli o ka piʻi mau ʻana o nā kumukūʻai aila maʻemaʻe honua, ua piʻi ka skyrocketed nā kumu kumu a pau no ka hana ACR, methyl methacrylate a me acrylic ester. Eia nō naʻe, ua lohi nā mea kūʻai aku i lalo i ka piʻi ʻana o ke kumukūʻai huahana, ka hopena i ka emi ʻana o ka loaʻa kālā no nā ʻoihana hoʻoponopono ACR. Ua alakaʻi kēia i kahi kūlana pohō no ka ʻoihana holoʻokoʻa ma 2003 a me 2004. I kēia manawa, ma muli o ke kūpaʻa ʻana o nā kumukūʻai maka, ua hōʻike ka ʻoihana i kahi ʻano maikaʻi o ka loaʻa kālā.
4. ʻAʻole i hiki ke hoʻomohala hohonu ka noiʻi ʻoihana
Ma muli o ka hoʻohui ʻana o ACR he mea hoʻohui polymer i hoʻomohala wale ʻia ma Kina i ka hopena o 1990s, ʻo kāna mau noiʻi a me ka hoʻomohala ʻana a me nā mea noiʻi he liʻiliʻi loa ia i hoʻohālikelike ʻia i nā mea hoʻohui ʻē aʻe e like me nā plasticizers a me nā mea pale ahi ma Kina. ʻOiai inā he mau keʻena noiʻi hoʻokahi e hoʻomohala ana, ʻo ka nele o ka hoʻohui maikaʻi ʻana ma waena o nā mea noiʻi a me ka ʻoihana hoʻoili plastik ua alakaʻi i ka hiki ʻole ke hoʻonui i ka noiʻi huahana. I kēia manawa, hilinaʻi wale ka hoʻomohala ʻana o ACR ma Kina i nā ʻoihana noiʻi nona nā ʻoihana liʻiliʻi e hoʻonohonoho a hoʻomohala. ʻOiai ua loaʻa kekahi mau mea i hoʻokō ʻia, 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 maikaʻi ʻia kēia kūlana, ʻaʻole ʻike ʻia inā hiki ke kū paʻa nā mea kōkua i ka mākeke kūloko i ka wā e hiki mai ana.