He aha ka mea PP?
He pōkole ʻo PP no Polypropylene, he polymer thermoplastic i hana ʻia mai ka polymerization o propylene monomer. Ma ke ʻano he mea koʻikoʻi koʻikoʻi plastik, he nui nā noi PP i ke ola o kēlā me kēia lā a me ka hana ʻoihana. Ma kēia ʻatikala, e loiloi mākou i nā kikoʻī he aha ka mea PP, a me kāna mau hiʻohiʻona, hoʻohana a me nā pono.
ʻO nā hiʻohiʻona kumu o ka mea PP
Loaʻa ka waiwai PP i ke kino a me ke kino. He haʻahaʻa kona haʻahaʻa, ma kahi o 0.9 g / cm³ wale nō, ʻo ia ka haʻahaʻa haʻahaʻa loa o nā plastics maʻamau, no laila he māmā ke kaumaha. , a ʻo ka hapa nui o nā ʻakika, alkalis a me nā mea hoʻoheheʻe kūlohelohe maikaʻi i ka corrosion. Ma muli o kēia mau pōmaikaʻi, ua lilo ka mea PP i mea koho waiwai maikaʻi loa i nā kula he nui.
Hoʻokaʻawale a hoʻololi i nā mea PP
Hiki ke hoʻokaʻawale ʻia nā mea PP i ʻelua mau ʻāpana nui, homopolymer polypropylene a me copolymer polypropylene, ma muli o ko lākou ʻano mole a me nā waiwai. Homopolymer polypropylene he kiʻekiʻe rigidity a me ka ikaika, e kūpono no nā huahana me ka kiʻekiʻe paakiki koi, oiai copolymer polypropylene i oi aku ka paʻakikī a me ka hopena ikaika ma muli o ka hoʻokomo 'ana o vinyl wae, a ua hoʻohana pinepine 'ia i loko o nā noi e pono ai ka hopena maikaʻi. e hoʻololi ʻia e ka hoʻohui ʻana i nā fiber aniani, nā mea hoʻopihapiha mineral, a i ʻole nā ​​​​mea hoʻopaʻa ahi e hoʻomaikaʻi i kona mau ʻano kino a me ke kūpaʻa wela, e hoʻokō i nā pono o kahi ākea ākea. Hiki ke hoʻololi ʻia ka PP ma o ka hoʻohui ʻana i nā fibers aniani a i ʻole nā ​​mea hoʻopiha mineral a i ʻole nā ​​​​mea hoʻopaʻa ahi e hoʻomaikaʻi i kona mau kino kino a me ka pale wela e hālāwai me kahi ākea ākea o nā noi.
Nā wahi noi o ka mea PP
Hiki ke loaʻa nā mea PP ma nā wahi a pau o ke ola, a ua uhi kā lākou mau noi i kahi ākea ākea, mai nā mea hoʻopihapiha a me nā huahana hale i ka ʻoihana kaʻa a me nā mea lapaʻau. Ma ke kahua o ka hoʻopili ʻana, hoʻohana nui ʻia ka mea PP i ka hana ʻana i nā pahu meaʻai, nā ʻeke ʻeke inu, nā kiʻiʻoniʻoni a me nā huahana ʻē aʻe, i makemake ʻia no ka mea ʻaʻole ia he meaʻawaʻawa, ʻono ʻole a me nā kūlana palekana meaʻai. I nā huahana hale, hoʻohana pinepine ʻia nā mea PP e hana i nā pahu mālama, nā hīnaʻi holoi, nā lako a pēlā aku. Ma muli o ka maikaʻi o ka wela a me ke kūpaʻa kemika, ua hoʻohana ʻia ʻo PP i ka ʻoihana kaʻa e hana i nā bumpers, dashboards a me nā pahu pahu, a me nā mea ʻē aʻe.
Pili kaiapuni a hoomau
I nā makahiki i hala iho nei, i ka piʻi ʻana o ka ʻike kaiapuni, ua loaʻa hou ka nānā ʻana o nā mea PP ma muli o kā lākou recyclability a me ka haʻahaʻa o ka hopena o ke kaiapuni. Hiki ke hana hou ʻia nā mea PP ma o ka hana hou ʻana ma hope o ka hoʻokuʻu ʻia ʻana, e hōʻemi ana i ka pollution i ke kaiapuni. ʻOiai ʻaʻole biodegradable ka mea PP, hiki ke hōʻemi maikaʻi ʻia kona hopena kaiapuni ma o ka hoʻokele ʻana a me ka hana hou ʻana. No laila, ua manaʻo ʻia ka mea PP he mea pili i ke kaiapuni a hoʻomau mau.
Hōʻuluʻulu manaʻo
ʻO ka mea PP kahi mea palaki maʻalahi me ka nui o nā noi. ʻO kona haʻahaʻa haʻahaʻa, ka pale wela, ke kūpaʻa kemika a me ka recyclability e lilo ia i mea pono i ka ʻoihana hou a me ke ola o kēlā me kēia lā. Ma ka hoʻomaopopo ʻana i ke ʻano o ka mea PP a me kāna mau wahi o ka noi, hiki iā ʻoe ke hoʻohana maikaʻi i nā pono o kēia mea e hāʻawi i kahi koho hilinaʻi no ka hoʻolālā ʻana a me ka hana ʻana i nā ʻano huahana āpau.