He aha ke ʻano o ka plastic PE?
ʻO PE (Polyethylene, Polyethylene) kekahi o nā thermoplastics maʻamau i hoʻohana ʻia i ka ʻoihana kemika. Hoʻohana nui ʻia ia ma nā ʻano ʻano like ʻole a ua lilo ia i mea koho i nā ʻoihana he nui ma muli o kāna mau waiwai kino maikaʻi a me ka hoʻokele waiwai. Ma kēia ʻatikala, e loiloi mākou i nā kikoʻī i nā ʻano o ka plastik PE, ko lākou mau waiwai a me kā lākou mau noi nui e kōkua iā ʻoe e hoʻomaopopo pono i kēia mea plastik koʻikoʻi.
Nānā Kūlana o nā Plastics PE
ʻO PE plastic (polyethylene) he mea polymer i hana ʻia e ka polymerization o ka ethylene monomer. Ma muli o ke kaomi a me ka mahana i ka wā o ke kaʻina hana polymerization, hiki ke hoʻokaʻawale ʻia nā plastik PE i nā ʻano nui e like me ka polyethylene low density (LDPE), polyethylene high density (HDPE) a me ka linear low density polyethylene (LLDPE). Loaʻa i kēlā me kēia ʻano plastik PE kona ʻano ponoʻī a me nā waiwai no nā hiʻohiʻona noiʻi like ʻole.
ʻO nā ʻano o nā plastic PE a me kā lākou mau waiwai
Polyethylene Māmā Haʻahaʻa (LDPE)
Hoʻokumuʻia ka LDPE e ka polymerisation kiʻekiʻe o ka ethylene, kahi i loaʻa i nā kaulahao lālāʻoi aku i loko o kona hale a no laila e hōʻike ana i kahi haʻahaʻa haʻahaʻa o ka kristal. ʻOiai ka haʻahaʻa haʻahaʻa a me ka paʻakikī, ʻoi aku ka maikaʻi o ke kaʻina hana a me ke kumu kūʻai haʻahaʻa o LDPE i mea nui i nā mea hoʻopili.

Polyethylene Māmā Kiʻekiʻe (HDPE)
Hoʻopili ʻia ʻo HDPE ma lalo o ke kaomi haʻahaʻa a ʻoi aku ka nui o ka molecular linear structure, ka hopena i ka crystallinity a me ka density kiʻekiʻe. ʻO nā mea maikaʻi o HDPE ʻo ia ka maikaʻi o ka pale kemika, ke kūpaʻa abrasion a me ka ikaika tensile, ʻoiai he haʻahaʻa haʻahaʻa. Hoʻohana nui ʻia kēia mau waiwai i ka HDPE i ka hana ʻana i nā paipu, nā ipu, nā ʻōmole a me nā ʻāpana kemika, a me nā mea ʻē aʻe.

Linear Low Density Polyethylene (LLDPE)
Hana ʻia ʻo LLDPE e ka polymerizing polyethylene me ka liʻiliʻi o nā monomers copolymer (e laʻa me butene, hexene) ma ke kaomi haʻahaʻa. Hoʻohui ia i ka maʻalahi o LDPE me ka ikaika o HDPE, ʻoiai e hōʻike ana i ke kūpaʻa hopena kiʻekiʻe a me ka stretchability. Hoʻohana mau ʻia ʻo LLDPE e hana i nā kiʻiʻoniʻoni ikaika kiʻekiʻe, e like me nā kiʻi ʻoniʻoni, nā kiʻiʻoniʻoni mahiʻai, etc.

Nā wahi noi nui o nā plastics PE
Ma muli o ka ʻokoʻa a me ka hana ʻoi aku o ka PE plastics, ākea loa kāna mau wahi noi. I loko o ka ʻoihana hoʻopihapiha, hoʻohana pinepine ʻia ka PE plastics e hana i nā ʻano kiʻiʻoniʻoni plastik, ʻeke a me nā pahu pahu. Ma ke kahua o nā paipu, hoʻohana mau ʻia ʻo HDPE i ka hana ʻana i nā paipu wai a me nā paipu hoʻoheheʻe, nā paipu kinoea, a me nā mea ʻē aʻe ma muli o kāna kūpaʻa kemika maikaʻi loa a me nā waiwai mechanical. I nā huahana hale, hoʻohana nui ʻia ka PE plastics e hana i nā hue, nā ipu a me nā huahana plastik ʻē aʻe. Ma ke kahua o ka mahiʻai, hoʻohana nui ʻia ʻo LLDPE a me LDPE e hana i nā kiʻiʻoniʻoni mahiʻai e hāʻawi i ka pale o nā mea kanu a me ka uhi lepo.
E hōʻuluʻulu
He aha ka PE plastic? ʻO ia kahi thermoplastic versatile, hoʻokele waiwai a hoʻohana nui ʻia. Ma ka hoʻomaopopo ʻana i nā ʻano like ʻole o ka plastic PE a me kā lākou waiwai, hiki i nā ʻoihana a me nā mea kūʻai ke koho maikaʻi i nā mea kūpono no kā lākou pono. Mai ka hoʻopili ʻana a me ka paipu a hiki i nā huahana o ka hale, he kuleana koʻikoʻi ka PE plastic i ke ola hou me kāna mau pono kūʻokoʻa. Inā kānalua ʻoe i ke koho ʻana i nā mea plastik, manaʻolana mākou e hiki i kēia ʻatikala ke hāʻawi iā ʻoe i ka ʻike pili waiwai.