He aha nā ʻano hana no ka hana hou ʻana i nā palaka ʻōpala?

He aha nā ʻano hana no ka hana hou ʻana i nā palaka ʻōpala?

ʻEkolu mau ala no ka hana hou ʻana: 1. Lapaʻau hoʻoheheʻe wela: ʻO kēia ʻano hana ka wela a me ka hoʻoheheʻe ʻana i nā ʻōpala i loko o ka aila a i ʻole ke kinoea, a i ʻole e hoʻohana iā lākou ma ke ʻano he ikehu a hoʻohana hou i nā ʻano kemika e hoʻokaʻawale iā lākou i nā huahana petrochemical no ka hoʻohana ʻana.ʻO ke kaʻina hana o ka hoʻoheheʻe wela ʻo ia: depolymerize ka polymer i nā wela kiʻekiʻe, a haki nā kaulahao molekala a hoʻoheheʻe ʻia i loko o nā molekele liʻiliʻi a me nā monomers.He ʻokoʻa ke kaʻina hana hoʻoheheʻe wela, a he ʻokoʻa ka huahana hope, aia ma ke ʻano o ka monomer, ka polymer kaumaha haʻahaʻa, a i ʻole ka hui ʻana o nā hydrocarbons lehulehu.ʻO ke koho o ka oilification a i ʻole ke kaʻina gasification pono e hoʻokumu ʻia ma nā pono maoli.ʻO nā ʻano hana i hoʻohana ʻia: ʻano pahu hoʻoheheʻe (no ka PE, PP, PP random, PS, PVC, a me nā mea ʻē aʻe), ʻano microwave (PE, PP, random PP, PS, PVC, a me nā mea ʻē aʻe), ʻano kīwī (no PE, PP , PS, PMMA).Tube evaporator type (no PS, PMMA), ebullating moena type (no PP, random PP, cross-linked PE, PMMA, PS, PVC, etc.), catalytic decomposition type (no PE, PP, PS, PVC, etc. ).ʻO ka paʻakikī nui o ka hoʻoheheʻe ʻana i ka wela, ʻo ia ka maikaʻi ʻole o ka thermal conductivity, kahi e paʻakikī ai ka hoʻokō ʻana i ka hoʻoheheʻe ʻana i ka wela nui a me ka pohā wela.Ma waho aʻe o ka hoʻoheheʻe ʻana i ka wela, aia kekahi mau ʻano hana kemika ʻē aʻe, e like me ka haki ʻana o ka wela, hydrolysis, alcoholysis, alkaline hydrolysis, etc.

2. Hoʻoheheʻe hou ʻia ʻO kēia kaʻina hana e hoʻokaʻawale, ʻohi, a hoʻomaʻemaʻe i nā palaka ʻōpala, a laila hoʻoheheʻe a hoʻopalapala iā lākou i nā huahana plastik.No nā huahana ʻōpala a me nā mea i koe mai nā mea kanu hana resin a me ka hoʻomaʻamaʻa plastik a me nā mea kanu hana, hiki ke hoʻohana ʻia kēia ʻano hana e hana i nā huahana like ʻole me ka maikaʻi.He mea paʻakikī ke hoʻokaʻawale a hoʻomaʻemaʻe i nā ʻōpala i hoʻohana ʻia i ka lehulehu, a ʻoi aku ke kumukūʻai.Hoʻohana pinepine ʻia lākou e hana i nā huahana koʻikoʻi a haʻahaʻa.3. Hoʻohana hou ʻia ka hui ʻana: ʻO kēia ʻano hana ka wāwahi ʻana i nā plastics ʻōpala, e like me nā huahana PS foam, PU foam, etc.