He aha ka PP Films?

NA WAIWAI

ʻO ka Polypropylene a i ʻole PP kahi thermoplastic haʻahaʻa haʻahaʻa o ka mālamalama kiʻekiʻe, kiʻekiʻe kiʻekiʻe a me ka ikaika tensile maikaʻi. He kiʻekiʻe ka helu heheʻe ma mua o ka PE, kahi e kūpono ai no nā noi e koi ana i ka sterilization ma nā wela kiʻekiʻe. He liʻiliʻi ka haze a ʻoi aku ka nani. ʻO ka maʻamau, ʻaʻole maikaʻi nā waiwai hoʻopaʻa wela o PP e like me ka LDPE. ʻOi aku ka ikaika o ka waimaka o LDPE a me ke kūpaʻa haʻahaʻa haʻahaʻa.

Hiki ke hoʻoheheʻe ʻia ʻo PP e hopena i ka hoʻomaikaʻi ʻana i nā waiwai pale kinoea no ke koi ʻana i nā noi kahi mea nui o ke ola o ka huahana.Nā kiʻiʻoniʻoni PPkūpono no ka laulā o ka ʻenehana, mea kūʻai, a me nā noi kaʻa.

Hiki ke hoʻohana hou ʻia ʻo PP a hiki ke hana hou ʻia i nā huahana ʻē aʻe no nā noi like ʻole. Eia naʻe, ʻaʻole like me ka pepa a me nā huahana cellulose ʻē aʻe, ʻaʻole biodegradable ka PP. Ma ka ʻaoʻao, ʻaʻole hoʻopuka ka ʻōpala PP i nā mea ʻona a i ʻole nā ​​​​huahana ʻino.

ʻO nā ʻano koʻikoʻi ʻelua ʻo ia ka polypropylene unoriented (CPP) a me ka polypropylene biaxially oriented (BOPP). Loaʻa i nā ʻano ʻelua i nā ʻōlinolino kiʻekiʻe, nā optics ʻokoʻa, maikaʻi a maikaʻi paha ka hana hoʻopaʻa ʻana i ka wela, ʻoi aku ka maikaʻi o ka pale ʻana i ka wela ma mua o ka PE, a me nā waiwai pale pale.

Kiʻiʻoniʻoni Polypropylene (CPP)

Loaʻa i ka Cast unoriented Polypropylene (CPP) ka liʻiliʻi o nā noi ma mua o ka biaxially oriented polypropylene (BOPP). Eia nō naʻe, ke loaʻa mau nei ka CPP ma ke ʻano he koho maikaʻi loa i ka nui o ka hoʻopili maʻalahi kuʻuna a me nā noi hoʻopili ʻole. Hiki ke hoʻopilikino ʻia nā waiwai kiʻiʻoniʻoni e hoʻokō i nā koi kikoʻī kikoʻī, ka hana, a me ka hana ʻana. Ma keʻano laulā, ʻoi aku ka kiʻekiʻe o ka CPP i ka waimaka a me ke kūpaʻa hopena, ʻoi aku ka maikaʻi o ka hana wela anuanu a me nā waiwai hoʻopaʻa wela ma mua o BOPP.

Nā Kiʻiʻoniʻoni Polypropylene Kūlana Biaxially (BOPP)

ʻO ka polypropylene Biaxially a i ʻole BOPP1 ka kiʻiʻoniʻoni polypropylene koʻikoʻi. He koho maikaʻi loa ia i ka cellophane, ka pepa waxed, a me ka alumini alumini. Hoʻonui ka hoʻonohonoho ʻana i ka ikaika tensile a me ka ʻoʻoleʻa, hoʻohaʻahaʻa i ka elongation (ʻoi aku ka paʻakikī o ka hoʻolōʻihi ʻana), a hoʻomaikaʻi i nā waiwai optical, a hoʻomaikaʻi iki i nā waiwai pale mahu. Ma keʻano laulā, loaʻa ka BOPP i ka ikaika tensile kiʻekiʻe, ke kiʻekiʻe o ka modulus (ʻoʻoleʻa), ka elongation haʻahaʻa, ka pale kinoea maikaʻi, a me ka haʻahaʻa haʻahaʻa ma mua o CPP.

NA PALAPALA

Hoʻohana ʻia ka kiʻiʻoniʻoni PP no nā noi hoʻopili maʻamau e like me ka cigakeke, ka candy, ka meaʻai a me nā mea ʻai. Hiki ke hoʻohana ʻia no ka shrink wrap, tape liners, diapers a me sterile wrap i hoʻohana ʻia i nā noi olakino. No ka loaʻa ʻana o ka PP i nā waiwai pale kinoea maʻamau, ua uhi pinepine ʻia me nā polymers ʻē aʻe e like me PVDC a i ʻole ka acrylic e hoʻomaikaʻi nui ai i kāna mau mea pale kinoea.

Ma muli o ka ʻala haʻahaʻa, ke kūpaʻa kemika kiʻekiʻe a me ka inertness, nui nā māka PP i kūpono no nā noi hoʻopili ma lalo o nā lula FDA.