Hana ʻia nā ʻeke i ulana ʻia

ʻO ka ʻeke i ulana ʻia he ʻeke plastik maʻamau, hana nui ʻia me ka polyethylene a i ʻole polypropylene, i hoʻopaʻa ʻia i loko o ka siliki pālahalaha, a laila ulana ʻia, ulana ʻia a ʻeke.No ka mea ʻoi aku ka ikaika, rigidity a me ka transparency o ka polypropylene ma mua o ka polyethylene, no laila ua hoʻohana nui ʻia, ʻoi aku ka nui o ka hana o nā ʻeke i ulana ʻia.Hoʻohana pinepine ʻia lākou e like me nā ʻeke ʻeke a hiki ke hoʻohana ʻia e hoʻopaʻa i nā huahana ʻoihana a me nā mahiʻai.Meaʻai, etc. Ma waho aʻe o ka mākaʻikaʻi.Hoʻohana pū ʻia nā ʻeke i ulana ʻia i ka hakakā ʻana i ka wai a me ke kōkua ʻana i nā pōʻino.

ʻO ka ʻeke i ulana ʻia, ʻike ʻia hoʻi ʻo ka ʻeke ʻeke snakeskin, he ʻano ʻeke plastik, hoʻohana nui ʻia no ka hoʻopili ʻana, a laila he aha ke ʻano o ka ʻeke i ulana ʻia?ʻO ka ʻōlelo maʻamau, ʻelua mau mea maka o nā ʻeke ulana:

1. Polyethylene

ʻIke pū ʻia ʻo PE plastic he resin thermoplastic i hana ʻia me ka ethylene polymerization.He maikaʻi ka hana ʻana o ka ʻeke i ulana ʻia ka polyethylene, akā paʻakikī ka polyethylene i ke koʻikoʻi o ke kaiapuni, maikaʻi ʻole ka wela a me ka ʻelemakule, no laila ʻaʻole i hoʻohana ʻia ma Kina.

2. Polypropylene

ʻO ka ʻōlelo maʻamau, ʻo ka hapa nui o nā ʻeke i ulana ʻia ma Kina i hana ʻia me ka polypropylene.ʻO ka polypropylene (PP) kahi resin thermoplastic i hana ʻia mai kahi polymer acrylic me nā mea isotropic.Random a intergauge ekolu configurations, kona ikaika.ʻOi aku ka ʻoi aku o ka rigidity a me ka transparency ma mua o ka polyethylene, a hiki ke hoʻololi a hoʻohui ʻia i nā antioxidants e lanakila ai i ka hopena haʻahaʻa haʻahaʻa haʻahaʻa, nā hemahema ʻelemakule maʻalahi.

I loko o nā huahana plastic, plastic braid he ʻano mea maʻalahi me ka ikaika haʻihaʻi kiʻekiʻe, e pili ana i kona ʻano molekala, crystallinity, kuhikuhi kuhikuhi a me ke ʻano additive.Inā ana ʻia ka wili plastik i ka ikaika kikoʻī (ikaika/kaumaha kikoʻī), ʻoi aku ka kiʻekiʻe ma mua a kokoke paha i kahi mea metala.

Ma ka lumi wela, paʻa maoli ka lole i ulana ʻia i ka wai, a ʻoi aku ka liʻiliʻi o ka lawe ʻana i ka wai ma lalo o 0 i loko o 24 mau hola.01%.He haʻahaʻa loa ka wai permeability.I nā mahana haʻahaʻa, lilo ia i crunchy.ʻAʻole ʻeleʻele nā ​​pulupulu.