E wehewehe pōkole i nā waiwai nui a me ka hoʻohana ʻana i nā plastik PP

E kamaʻilio me ʻoe e pili ana i nā waiwai nui a me ka hoʻohana ʻana i ka polypropylene (PP).

ʻO ka mea mua, he aha ka polypropylene?Hoʻopau ʻia ka polypropylene ma ke ʻano he "PP".He resin thermoplastic me ka hoʻonohonoho maʻamau a kiʻekiʻeELECTRIC THERMAL ACTUATOR(crystallinity a hiki i 95%) polymerized mai propylene.Hiki ke hoʻokaʻawale ʻia i loko o ka hoʻoheheʻe ʻia ʻana o ka PP, ke kaha kiʻi uea PP, ka fiber PP, ka kiʻiʻoniʻoni PP, ka paipu PP.Ma waena o nā plastics i hoʻohana mau ʻia i ke ola, ʻo polypropylene kekahi o nā ʻano māmā loa.

Aia ma lalo iho nā waiwai o ka polypropylene:

1. Nā waiwai kino: non-toxic, odorless, tasteless, milky white and high crystalline density only 0.9-0.91g/cm3, good stability to water.

2. Thermal hana: He maikaʻi ka wela kū'ē, a me kāna mau huahana hiki ke sterilized ma ka mahana ma luna o 100 °C, a aole e deform ma 150 °C me ka waho ikaika.ʻO ka mahana embrittlement he -35 °C, a hiki i ka embrittlement ma lalo o -35 °C, a ʻaʻole maikaʻi ke kūpaʻa anuanu e like me ka polyethylene.

3. Paʻa kemika: He maikaʻi loa ke kūpaʻa kemika.Ma waho aʻe o ka corroded e ka sulfuric acid concentrated a me ka nitric acid concentrated, ua kūpaʻa ia i nā reagents kemika ʻē aʻe, akā haʻahaʻa haʻahaʻa molecular aliphatic hydrocarbons, aromatic hydrocarbons a me chlorinated hydrocarbons hiki ke hoʻomāmā a pehu ka polymer Propylene, a hoʻonui kona kūpaʻa kemika me ka piʻi ʻana o ka crystallinity, no laila ua kūpono ka polypropylene no ka hana ʻana i nā paipu kemika a me nā mea pono, a he hopena anti-corrosion maikaʻi.

4. Nā waiwai uila: He kiʻekiʻe ka dielectric coefficient, a me ka piʻi ʻana o ka mahana, hiki ke hoʻohana ʻia e hana i nā huahana insulation uila.He kiʻekiʻe ka haʻihaʻi uila a kūpono no ka hoʻohana ʻana e like me nā mea uila, a me nā mea ʻē aʻe. He kūpaʻa maikaʻi kona i ka volta a me ke arc, akā he uila static kiʻekiʻe, a maʻalahi ka makahiki i ka wā e pili ana me ke keleawe.

Hoʻohana nui ʻia ka polypropylene i nā mea hana hale a me nā paipu plastik.Ua ulu wikiwiki nā mea hana hale i nā makahiki i hala iho nei, me nā ʻano like ʻole a me nā huahana nui.No laila, i nā makahiki e hiki mai ana, e hoʻonui ʻia ka hoʻomohala ʻana o nā mea kūikawā PP no nā mea pono hale e hoʻokō i nā pono loli o ka mākeke.

I ka makahiki 2003, ua ʻoi aku ka nui o ka hoʻopuka ʻana o nā paipu plastik ma mua o 1.8 miliona mau tons, ʻo ka piʻi ʻana o ka makahiki he 23%.I nā lā mua, ua hoʻohana nui ʻia nā paipu PP e like me nā paipu wai mahiʻai, akā ʻaʻole i wehe ka mākeke ma muli o kekahi mau pilikia i ka hana ʻana o nā huahana mua (ka ikaika o ka hopena a me ke kūpaʻa ʻole o ka ʻelemakule).Akā me ka hoʻokomo ʻana o ka ʻenehana, ua ʻike ʻia ka mākeke.ʻO nā paipu plastik kekahi o nā huahana koʻikoʻi no ka hoʻolaha ʻana a me ka hoʻohana ʻana i nā mea kūkulu hale kemika ma koʻu ʻāina.Ua hoʻopuka ka Ministry of Construction i kahi "Notice on Strengthening the Production Management and Promotion and Application of Copolymerized Polypropylene (PP-R, PP-B) Pipes" i ka makahiki 2001, e koi ana i nā keʻena kūpono E hana pū i kahi hana maikaʻi mai nā mea maka, ka hana, ka maikaʻi i ka hoʻohana ʻana i ka paipu a me ka hoʻokomo ʻana, a mālama pono i ka maikaʻi o nā paipu PP, i ʻoi aku ka maikaʻi o ka hana maikaʻi i ka hana ʻana, noi a me ka hoʻolaha ʻana i nā paipu PP ma koʻu ʻāina.

Me ka hoʻomaikaʻi ʻana i nā kūlana ola o nā kānaka, he ʻano hoʻomohala maikaʻi ia e hoʻomohala i nā mea kūikawā PP pono, ʻoi aku ka pono o nā mea kūikawā PP me ka ʻike kiʻekiʻe, ka wai maikaʻi, a me ka hoʻokumu wikiwiki ʻana e koi ʻia e hoʻolālā a hana i nā huahana PP punahele.ʻOi aku ka maikaʻi o ka PP Transparent ma mua o ka PP maʻamau, PVC, PET, PS, a ʻoi aku ka maikaʻi o ka hoʻomohala ʻana.I kēia manawa, aia kahi ākea nui ma waena o nā mea kūikawā PP ponoʻī a me nā ʻāina ʻē, a pono e hoʻoikaika ʻia ka hana ʻana a me ka noi ʻana o ka resin PP transparent a me kāna mau huahana.

Eia kekahi, hoʻohana pū ʻia ka polypropylene i ke kiʻi ʻoniʻoni PP a pēlā aku.