Ka Wehewehe Kikoʻī o nā ʻAno, nā ʻAno Hana a me nā Hoʻohana ʻana o nā Mea PE a me PP
1. Nānā i nā mea hana
ʻO PE, PP, PVC, PS, PC, PF, EP, ABS, PA, PMMA, a me nā mea ʻē aʻe, ua kapa ʻia lākou he mau mea palaki, i ʻike ʻia hoʻi he mau mea polymer. He ʻano mea synthetic lākou me ka plasticity i hana ʻia mai nā hui molekala kiʻekiʻe ma o nā ʻano hana like ʻole. Loaʻa i nā mea palaki nā pono o ka māmā, loaʻa ka ikaika kiʻekiʻe, ke kūpaʻa maikaʻi i ka pala, a me ka insulation maikaʻi loa. Hoʻohana nui ʻia lākou i ka hoʻopili ʻana, ke kūkulu ʻana, nā kaʻa, nā mea uila, a me nā ʻoihana ʻē aʻe he nui.
Polyethylene (PE): He thermoplastic māmā a palupalu hoʻi me ke kūpaʻa kemika maikaʻi. Ma muli o ka density, hiki ke hoʻokaʻawale ʻia i loko o ka polyethylene density kiʻekiʻe (HDPE) a me ka polyethylene density haʻahaʻa (LDPE).
Polypropylene (PP): Loaʻa iā ia ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa kemika a me ka paʻakikī, a hoʻohana nui ʻia i nā ʻāpana kaʻa a me nā lako hale.
2. Polyethylene (PE)
Nā Waiwai Kino a me nā Kemika: ʻO Polyethylene (PE) kahi polymer linear kiʻekiʻe-molecular me kahi ʻano molekala maʻalahi loa, i haku ʻia me nā ʻāpana "-CH2-CH2-" e hana hou ana. Hāʻawi kēia ʻano hana iā PE me nā ʻano waiwai kino a me nā kemika like ʻole.
Māmā: Haʻahaʻa ka nui o ka PE, ma kahi o 0.91 a me 0.96 g/cm³, e lilo ia i mea hōʻailona o nā mea māmā.
Ke Kū'ē Kemika: Hōʻike ʻo PE i ke kūpaʻa kemika maikaʻi i ka hapa nui o nā waikawa, nā kumu, a me nā hopena paʻakai.
Palekana Uila: Ma ke ʻano he mea non-polar, loaʻa iā PE ka hana palekana uila maikaʻi loa.
Ke Kū'ē Mahana Haʻahaʻa: Hiki i ka PE ke mālama i kona mau waiwai kino i nā mahana haʻahaʻa e like me -70°C. Hiki ke hoʻololi hou ʻia ka PE ma hope o ka hoʻomehana ʻana, e hoʻomaʻalahi ana i ka hana hou ʻana a me ka hana hou ʻana.
Nā ʻAno Hana: He ʻokoʻa nā ʻano hana o ka polyethylene a ʻo ia hoʻi kēia mau mea.
Extrusion: hoʻohana ʻia no ka hana ʻana i nā paipu, nā papa insulation o nā uea a me nā kaula, a pēlā aku.
Hoʻoheheʻe ʻia ʻana: kūpono no ka hana ʻana i nā ipu liʻiliʻi, nā mea pāʻani, a pēlā aku.
Hoʻoheheʻe Puhi: hoʻohana ʻia no ka hana ʻana i nā ʻōmole a me nā ipu hakahaka.
Hoʻoheheʻe ʻia ʻana o ka Compression: kūpono no ka hana ʻana i nā ʻāpana plastik nui aʻe, hoʻohana ʻia no ka hana ʻana i nā mea hoʻopili lahilahi a me nā pā.
Nā Kahua NoiHe ākea nā kahua noi o ka Polyethylene. Eia kekahi mau laʻana noi nui.
Nā Mea Hoʻopili: Hoʻohana nui ʻia nā kiʻiʻoniʻoni PE i ka hoʻopili meaʻai a me ka hoʻopili waiwai ma muli o ko lākou kaumaha māmā a me ka hana pale maikaʻi.
Nā Paipu Palakiko: Hoʻohana pinepine ʻia nā paipu HDPE no ka lawe ʻana i ka wai a me ke kinoea ma muli o ko lākou kūpaʻa kemika a me ke kūpaʻa ʻana i ka ʻaʻahu.
Nā Uea a me nā Kaula: Hoʻohana nui ʻia ʻo PE ma ke ʻano he mea hoʻokaʻawale i ka hana ʻana o nā uea a me nā kaula.
ʻO ka mahiʻai: Hoʻohana ʻia ʻo PE e hana i nā kiʻiʻoniʻoni mahiʻai, e like me ka ʻenehana uhi lepo.
Kahua Lapaʻau: Ma muli o kona bio-compatibility a me ke kūpaʻa kemika, hoʻohana ʻia ʻo PE i ka hana ʻana o kekahi mau mea lapaʻau.
ʻOihana kaʻa: Hoʻohana ʻia ʻo PE i ka hana ʻana o nā ʻāpana kaʻa, e like me nā pahu wahie a me nā bumpers, ma muli o kona māmā a me ke kūpaʻa i ka hopena.
3. Nā Waiwai Kino a me Kemika o Polypropylene (PP)
ʻO Polypropylene (PP) kahi polymer thermoplastic linear i hana ʻia mai ka polymerization o nā monomers propylene. Loaʻa iā PP nā waiwai kino a me nā kemika kaulana e like me kēia
Ke Kū'ē Wela: ʻO ke kiko heheʻe o PP ma waena o 160 a me 170°C, e kūpaʻa ana i ka wela a kūpono no nā huahana e pono ai ke kū i nā mahana kiʻekiʻe.
Ke Kū'ē Kemika: Paʻa ka PP i ka wai, nā paʻakai inorganic, nā waikawa, a me nā kumu akā hiki ke maʻalahi i kekahi mau mea hoʻoheheʻe organik.
Paʻakikī: He paʻakikī kiʻekiʻe ko PP, e ʻae ana iā ia e mālama i kona ʻano ma lalo o nā ukana kaumaha.
Ke Kū'ē ʻana i ka Luhi: He kūpaʻa maikaʻi ko PP i ka luhi a kūpono ia no nā noi e pono ai ke kulou pinepine ʻana a i ʻole ka wili ʻana. Hiki ke hoʻomehana pinepine ʻia a hoʻomaʻalili ʻia ʻo PP me ka ʻole o ka nalowale ʻana o kona mau waiwai kino, e maʻalahi ai ke hana hou ʻia.
Nā ʻAno Hana: Hiki ke hana ʻia ka Polypropylene i nā huahana like ʻole ma o nā ʻano hana he nui.
Hoʻopuka ʻana: Hoʻohana ʻia no ka hana ʻana i nā paipu PP, nā pepa, nā koʻokoʻo, a pēlā aku.
Hoʻoheheʻe ʻia ʻana: Kūpono no ka hana ʻana i nā huahana palaki liʻiliʻi a waena e like me nā ipu, nā poʻi, a me nā ʻāpana kaʻa.
Hoʻoheheʻe Puhi: Hoʻohana ʻia no ka hana ʻana i nā huahana palaki nui e like me nā ʻōmole a me nā bākeke. Hoʻohana ʻia no ka hana ʻana i nā ipu a i ʻole nā pā wahī palaki lahilahi.
Hana ʻana i nā Fiber: Hiki ke hana ʻia ʻo PP i nā fibers ma o nā kaʻina hana hoʻolōʻihi a me ka ulana no nā kaula, nā kāpeti, a pēlā aku.
Nā Wahi HoʻohanaHe nui nā noi o ka Polypropylene, me nā laʻana ma lalo nei.
ʻOihana kaʻa: Hoʻohana nui ʻia ʻo PP i ka ʻoihana kaʻa no nā ʻāpana o loko a me waho ma muli o kona māmā a me ke kūpaʻa wela, e like me nā panela mea hana a me nā bumpers.
ʻOihana lole: Hoʻohana ʻia nā olonā PP i ka hana ʻana i nā kaula, nā kāpeti, a me nā lole.
Nā Mea Hoʻopili: Ma muli o kona māmā a me ke kūpaʻa kemika, hoʻohana pinepine ʻia ʻo PP i nā mea hoʻopili no nā meaʻai a me nā mea ʻai ʻole.
Nā Mea Hana Hale: Hoʻohana ʻia ʻo PP i ka hana ʻana i nā ipu palekana microwave, nā drawers friji, a me nā ʻāpana lako hale ʻē aʻe.
ʻOihana Kūkulu: Hoʻohana ʻia nā paipu PP a me nā pepa i ke kūkulu ʻana i nā ʻōnaehana paipu a me nā mea hoʻonaninani.
Kahua Lapaʻau: Ma muli o kona bio-compatibility, hoʻohana ʻia ʻo PP i ka hana ʻana o kekahi mau lako lapaʻau hoʻolei ʻia, e like me nā syringes a me nā paipu hoʻāʻo.