ʻO ka mea pale keleawe a i ʻole ka copper deactivator kahi mea hoʻohui hana i hoʻohana ʻia i nā mea polymer e like me ka plastics a me ka rubber. ʻO kāna hana nui ka pale ʻana i ka hopena catalytic kahiko o ke keleawe a i ʻole nā iona keleawe ma nā mea, pale i ka hoʻohaʻahaʻa ʻana i ka waiwai, discoloration, a i ʻole ka hoʻohaʻahaʻa ʻana i ka waiwai mechanical i hoʻopili ʻia me ke keleawe. He mea koʻikoʻi loa ia ma nā kahua e like me ka uea conduit, cable sheath, electronic packaging material, etc.
Hoʻohana nui ʻia ke keleawe a me kona mau ala (e like me nā uea) i ka hoʻouna ʻana i ka mana, akā ke hoʻopili pololei ʻia ke keleawe me kekahi mau mea polymer (e like me PVC, polyethylene), hiki ke kumu i kēia mau pilikia:
Catalytic oxidation:
ʻO Cu2+ kahi mea hoʻoheheʻe hoʻoneʻe ikaika e hoʻolalelale i ka haʻihaʻi oxidative o nā kaulahao polymer molecular, ʻoi aku ka nui o ka wela a me nā wahi haʻahaʻa.
ʻAkaʻinoʻino:
I loko o nā mea halogenated e like me PVC, hiki ke hana ke keleawe me ka HCl decomposed e hana i ka copper chloride (CuCl2), e hoʻolalelale hou aku i ka decomposition mea (self catalytic effect).
Hoʻohaʻahaʻa i ke ʻano:
Hiki i ka neʻe ʻana o nā ion keleawe ke hōʻike i nā kiko ʻōmaʻomaʻo a ʻeleʻele paha (ka ʻele keleawe) ma ka ʻili o ka mea, e pili ana i kona helehelena.
ʻO ke ʻano hana o ka deactivator
Hoʻopau nā Deactivators i nā hopena maikaʻi ʻole o ke keleawe ma o kēia mau ʻano:
ʻO nā iona keleawe chelated:
Hoʻohui ʻia me ka Cu2+ manuahi, hoʻokumu ʻia nā paʻa paʻa e pale i kā lākou hana catalytic (e like me nā pūhui benzotriazole).
Passivation o ka ʻili keleawe:
E hana i kahi kiʻiʻoniʻoni pale ma ka ʻili keleawe e pale ai i ka hoʻokuʻu ʻana o nā ion keleawe (e like me nā pūhui phosphorus organik).
Hoʻopau i nā mea ʻakika:
I loko o ka PVC, hiki i kekahi mau deactivators ke hoʻokaʻawale i ka HCl i hana ʻia e ka decomposition, e hōʻemi ana i ka ʻino o ke keleawe (e like me ke alakaʻi paʻakai stabilizers i loaʻa pū kekahi hana pale keleawe).
ʻO Copper Deactivators kahi ʻano o "Invisible Guardian" i nā mea polymer e hoʻonui nui i ke ola lawelawe o nā huahana e like me nā sheathes uea ma ke kāohi ʻana i ka hana catalytic o ke keleawe. Aia ke kumu o kāna ʻenehana i ka chelation kemika pololei a me ka passivation o ka ʻili, ʻoiai ke kaupaona nei i ka launa ʻana o ke kaiapuni a me ke kumukūʻai. I ka manao o ka uea casing, ka coordinative formula onā mea hoʻopau, pale ahia ʻo nā mea hoʻohui ʻē aʻe ke kī e hōʻoia i ka hilinaʻi lōʻihi o nā mea.
Ka manawa hoʻouna: Mar-05-2025