?O ka mea mua, e ?ike kākou i kēia mau mea ?elua:
He aha ka mea PC?
I ka ?oihana, kapa ?ia ka polycarbonate (Polycarbonate) PC. ?O ka ?oia?i?o, ?o ka mea PC kekahi o kā mākou plastics industrialized. ?O ke kumu i ho?ohana nui ?ia ai i ka hana ?ana ua ho?oholo piha ?ia e kona mau hi?ohi?ona. Loa?a i ka PC nā pono kū?oko?a o ke ahi, non-toxic a me ka waiho?olu?u. ?O ke kī ?o ia ka mana ho?onui nui, ka wela ki?eki?e a me ke kūpa?a ha?aha?a ha?aha?a, a me ka extensibility maika?i. ?O ke kī ?o ia ka maika?i o ka huahana i ho?opau ?ia. Ua lilo kēia i mea koho no nā mea lako he nui e koho i ka PC ma ke ?ano he kumu. He kumu nui.
He aha ka mea PP?
?O PP ka pōkole o polypropylene (Polypropylene), a ?o ia ho?i ka mea a mākou e kapa pinepine ai i ka plastic Fold-fold, ?o ia ho?i kekahi ?ano o ka plastic production. ?O PP kahi huahana plastic synthetic, akā loa?a iā ia nā pono pono?ī a me nā hemahema. Nui nā ?ōmole pēpē e hana ?ia me ka mea PP no ka mea he kū?ē ia i nā wela ki?eki?e a ua maika?i loa ma luna o 100 degere Celsius, no laila kūpono ia no nā pono o ka ho?olapalapa pinepine ?ana i ka wai disinfection o nā hue pēpē. He maika?i ke kūpa?a o PP.
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No laila no ke aha i loko o ka ?oihana lako, ho?ololi mālie ?ia nā mea PC e nā mea PP? ?O nā kumu penei:
Kumu kumu kū?ai
?Oi aku ka ki?eki?e o ke kumu kū?ai o ka resin PC ma mua o ka PP. ?Oi aku ka maika?i o nā mea maka o PC ma mua o 20,000 a ton, a ?o ke kumu kū?ai o PP he 10,000. ?O PP kekahi o nā papahana i ho?ohana nui ?ia.
Mana?o lole
Ma ke ?ano o ka lawe māmā ?ana o nā plastics, lanakila ka resin PC. ?O PC kekahi o nā plastic transparent ?ekolu me ka transmittance māmā maika?i loa. ?O nā lako i ho?opau ?ia he aniani a kala ?ole. He ?ilihune loa ka permeability o ka pp, a ?o ka PP ma?amau ka mana?o hazy o ka noe, kahi e ho?onui ai i ke ?ano o ka mea a ho?olilo i ke kala i ?oi aku ka matte, e ?oi aku ka holomua. ?O ke koho ?ana i nā kala he nui i lilo i mea punahele nona. Nā kumu ho?okipa. Nā koho waiwai, ?a?ole like me ka mea PC.
Nā hi?ohi?ona waiwai
He ?oko?a ka pa?akikī a me ka pa?akikī o kēia mau plastic. He pa?akikī maika?i loa ka PC, he ha?aha?a ha?aha?a loa ka pa?akikī o PP i ka mahana o ka lumi, a hiki ke ma?alahi ke ho?ololi ?ia a ho?opa?a ?ia e ka ikaika o waho. Eia nō na?e, he pa?akikī maika?i loa ?o PP, i kapa ?ia ?o Baizhe glue, a ho?ohana nui ?ia i nā lako. ?Oi aku ka ikaika o kona pa?akikī a ?oi aku ka maika?i o ka lawe ?ana i ka ukana.
Hiki ke hana
He maika?i loa ka wai o ka injection PP a ua ma?alahi ka hana ?ana, ?oiai ?oi aku ka maika?i o ka wai o PC a pa?akikī ke ho?one?e i ke kāpili. Eia kekahi, ma?alahi ka PC e ho?ohehe?e a ho?ololi i ka waiho?olu?u i ke ki?eki?e ki?eki?e i ka ho?ohehe?e ?ia ?ana, a ?o ka ho?ohehe?e ?ana e koi i kahi wili PC ma?amau. No laila, ?oi aku ka ki?eki?e o ke kumukū?ai hana o nā huahana PC. I ka manawa like, i ka wā i hana ?ia ai nā huahana injection PC, ma muli o ko lākou mau hi?ohi?ona a ma?alahi ke ?ike i nā ?ōpala a me nā haumia i loko, ha?aha?a loa ka hua. Inā he mākeke ki?eki?e, pa?akikī loa ka mālama ?ana i ka maika?i o nā huahana PC, kahi e ho?onui nui ai i nā kumukū?ai hana.
Mea palekana
Hiki i nā huahana PC ke ho?ohehe?e i ka bisphenol A, he mea pō?ino i ke olakino kanaka. ?A?ole hiki i ka PC wela ki?eki?e ke hana i ka bisphenol A, akā ?o ka bisphenol A ka mea maka no ka hana ?ana i nā plastik PC. Ma hope o ka synthesis o bisphenol A, hana ?ia ka PC. Ma hope o ka synthesis kemika, ?a?ole i laila ka bisphenol A mua. He ka?ina wale nō kēia ka?ina hana synthesis, a aia nā ?oko?a i ke ka?ina hana, he pa?akikī ke 100% piha ka hopena, a aia paha ke koena bisphenol A (hiki paha). Ke hālāwai ?o PC i ka wela ki?eki?e, e ho?ohehe?e ?ia ka bisphenol A mai loko mai o ka plastic. No laila, inā he koena bisphenol A i loko o ka mea, e mau ana ka ua wela a me ka ua anu, a lohi loa ka ua anu.
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?O nā mea āpau, ?oko?a ka hana o PC a me PP, a ?a?ole hiki ke ho?oholo wale i ka mea maika?i a ?o wai ka hewa. Pono nō e koho i ka huahana maika?i loa no ka laulā o ka ho?ohana. A ?oi aku ka nui o ka ho?ohana ?ana o PP i ka māla lako, ?o ia ke kumu e ho?ololi mālie nei nā lako PP i nā lako PC.
E ?olu?olu e nīnau mai ia?u ma oAndrew@sinotxj.com
Ka manawa ho?ouna: Mei-24-2022