Plastika Polypropylene (PP)
* He thermoplastic semi crystalline ka Polypropylene. Loaʻa iā ia ke kūpaʻa kiʻekiʻe i ka hopena, nā waiwai mechanical ikaika, a me ke kūpaʻa i nā mea hoʻoheheʻe organik like ʻole a me ka pala acid-base.
* Kū'ē kemika maikaʻi loa Loaʻa nā papa palekana no ka meaʻai.
* Nā huahana plastik PP i hoʻopilikino ʻia a i ʻole nā ʻāpana
ʻO Polypropylene, i hoʻopōkole ʻia ʻo PP, he polymer i hana ʻia mai ka propylene ma o kahi hopena polymerization. He mea keʻokeʻo, waxy me kahi hiʻohiʻona maopopo a māmā. ʻO ke ʻano kemika (C3H6)n, density 0.89 ~ 0.91g/cm3, hiki ke lapalapa, he 164 ~ 170 ° C ka heheʻe ʻana, palupalu ma 155 ° C a pēlā aku, ʻo ka hoʻohana ʻana i ka pae mahana o -30 ~ 140 ° C.
He kūpaʻa ia i ka pala e ka waikawa, alkali, wai paʻakai a me nā ʻano mea hoʻoheheʻe organik he nui ma lalo o 80 ℃, a hiki ke hoʻoheheʻe ʻia ma lalo o ke ana wela kiʻekiʻe a me ka oxidation. Hoʻohana ʻia ia ma nā ʻano hana like ʻole, me ka hoʻopili ʻana i nā mea kūʻai aku, nā ʻāpana plastik no ka ʻoihana kaʻa a me nā lole.
He aha nā mea hiki ke hana ʻia me ka PP Plastic?
ʻO ka Polypropylene ka mea palaki māmā loa ma ke ʻano o ka nui. ʻO kona ʻano he granules kala ʻole a translucent, a ma ke ʻano he palaki papa meaʻai, hoʻohana nui ʻia ia i loko o nā ʻōpala meaʻai, e like me nā pahu Styrofoam, nā kīʻaha palaki PP, a pēlā aku. Hiki ke hoʻokaʻawale ʻia ka Polypropylene i ʻelima mau ʻāpana nui e like me kāna mau noi nui: PP injection molding, PP drawing, PP fiber, PP film, a me PP pipe.
Eia kekahi mau noi no ka Polypropylene (pp)
- Nā mea lapaʻau
- Nā ʻāpana kaʻa
- Nā ipu meaʻai
- Ka hoʻopili ʻana
- Nā ipu kīʻaha
- Nā ʻōmole
- Nā lole
- mea pāʻani
- Nā poʻi ʻōmole
- Nā olonā lole
- Nā huahana ulana plastik
- Nā mea hana hale
- Nā huahana mea kūʻai aku
- Nā lako māla
- Nā lako hale liʻiliʻi
Nā ʻano o ka Polypropylene (PP)
Ke kū'ē kemika: ʻAʻole hana nā kumu a me nā waikawa i hoʻoheheʻe ʻia me PP, ʻo ia hoʻi he ipu kūpono ia no ia mau wai (e like me nā mea hoʻomaʻemaʻe, nā huahana kōkua mua, a pēlā aku).
ʻO ka elasticity a me ka paʻakikī: He elastic ʻo PP i loko o kahi pae o ka deflection a ke hele nei i ka deformation plastic i ka hoʻomaka ʻana o ke kaʻina deformation me ka ʻole o ka haki ʻana, no laila ua manaʻo pinepine ʻia he mea "paʻakikī".
Ke kūpaʻa ʻana i ka luhi: Mālama ʻo PP i kona ʻano ma hope o ka nui o ka wili ʻana a me ke kūlou ʻana. He mea waiwai nui kēia waiwai no ka hana ʻana i nā hinges hiki ke hoʻoneʻe ʻia.
Hoʻokaʻawale: He kiʻekiʻe ke kū'ē uila o ka mea PP a he mea hoʻokaʻawale ia.
Hoʻoili: Hiki ke hana ʻia i nā kala moakaka, akā hana pinepine ʻia i nā kala opaque kūlohelohe me kekahi kekelē o ka hoʻoili. Inā koi ʻia ka hoʻoili kiʻekiʻe, pono e koho ʻia ka acrylic a i ʻole PC.
Pehea e hana ʻia ai nā mea PP?
E like me nā plastics ʻē aʻe, hoʻomaka ʻo Polypropylene (PP) ma ke ʻano he "hapa" (hui māmā) mai ka distillation o nā wahie hydrocarbon a hui pū me nā mea hoʻouluulu ʻē aʻe e hana i nā plastics ma o ka polymerization a i ʻole nā reaction polycondensation.
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Polypropylene (PP)– Ke kaʻina hana:
Hoʻoili hope ʻia ka pauka i loaʻa i nā silos pauka a laila hoʻololi ʻia i nā pellets e hoʻokomo pū ana i kahi laulā piha o
nā mea hoʻohui i hoʻopuehu maikaʻi ʻia.
ʻO ka hana hou ʻana o ka polypropylene (PP) plastic a me ka palekana o ke kaiapuni
Ke hana hou ʻia ka polypropylene, hoʻemi ia i ka hoʻohana ʻana i nā kumuwaiwai palena ʻole e like me ka ʻaila a me ke kinoea propane. Ma kahi o 8% o ka ʻaila o ka honua (ma kahi o 400 miliona tons) i hoʻohana ʻia i nā ʻano hana hana plastik kuʻuna, kahi i hoʻohana ʻia ai ka 4% ma ke ʻano he "mea hānai" a ʻo kekahi 4% i hoʻohana ʻia i ka hana ʻana. Inā hana ʻia nā plastik mai nā plastik hana hou ʻia, e hoʻemi ʻia hoʻi ka hoʻohana ʻana i ka ikehu ma ka 88%. No laila, he mea aloha i ke kaiapuni ka hana hou ʻana i nā plastik polypropylene!
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