Pono nā kānaka a pau e kama'āina i ka pepa.No ka mea hiki iā mākou ke ʻike i nā ʻano huahana pepa āpau i nā hiʻohiʻona he nui i ke ola o kēlā me kēia lā.No ka laʻana, kamaʻāina mākou i nā kīʻaha pepa, nā kīʻaha pepa, nā pā pepa a me nā pahu meaʻai wikiwiki.Ua ʻike mākou a pau he hygroscopic ka pepa (hiki ke komo i ka makū) a he haʻahaʻa ka pohā ikaika.Akā, inā e akahele ʻoe, e ʻike ʻoe aia kēia mau pepa i kahi kiʻiʻoniʻoni ʻoniʻoni ʻoniʻoni ma loko.He kiʻi ʻoniʻoni PE kēlā, me he mea lā e kau ana i kahi kapa kupua ma ka pepa, e hāʻawi iā ia i ka mana nui o ka makaʻu ʻole i ka wai a me ka ʻaila.E wehe pū kākou i ka mea huna o ka pepa i uhi ʻia!
ʻIkepili
1. He aha ka PE?
2. Hoʻokaʻawale i ka PE.
3. Ka mahele ʻana o ka mana hana PE ma ka ʻāina.
4. He aha ka PE pepa i uhi ʻia?He aha ka mea i hoʻohana ʻia?
5, Hoʻohālikelike o ka pepa i uhi ʻia e PE.
6. Hoʻohana i ka pepa i uhi ʻia e PE.
He aha ka PE?
Ma mua o ka hoʻomaopopo ʻana i ka pepa i uhi ʻia ʻo PE, e kamaʻilio e pili ana i kāna kumu kumu - polyethylene.He pōkole ka Polyethylene no ka PE, he resin thermoplastic i polymerized mai ka ethylene.ʻO ka hiʻohiʻona o ka polyethylene he mau ʻāpana waxy keʻokeʻo keʻokeʻo, ʻaʻohe ʻono, ʻaʻala ʻole, ʻona ʻole a manaʻo e like me ka wax.ʻO ka hiʻohiʻona nui o ka polyethylene he mea liʻiliʻi, nona ke kūpaʻa anuanu maikaʻi loa, kūpaʻa kemika, insulation uila a me nā ʻano ʻē aʻe.No laila, he ākea loa o nā noi.Hoʻohana nui ʻia i ka hana ʻana i nā kiʻiʻoniʻoni, nā mea hoʻopihapiha, nā ipu, nā paipu, nā uwea a me nā kaula, nā mea e pono ai i kēlā me kēia lā, etc. Ua hoʻomohala ʻia ka polyethylene i loko o ka resin synthetic nui loa o ka honua a me ka hoʻohana nui ʻana i nā mea hoʻopihapiha plastik.Noho ʻo ia i kahi kūlana koʻikoʻi i ka ʻoihana plastics.
Hoʻokaʻawale o PE
Ma muli o nā kaʻina hana polymerization ʻē aʻe o ka polyethylene, ʻokoʻa hoʻi kona ʻano, a ʻokoʻa hoʻi nā waiwai huahana pili.Hiki ke hoʻokaʻawale ʻia i: Polyethylene Low-Density (LDPE), Linear Low Density Polyethylene (LLDPE), High-Density Polyethylene (HDPE).
LDPE: Hoʻohana nui ʻia no ka pepa synthetic, kiʻiʻoniʻoni mahiʻai, kiʻiʻoniʻoni no ka hoʻopili ʻana i ka ʻoihana, uea, etc.
LLDPE: Hoʻohana nui ʻia no nā uea a me nā kaula, nā paipu, nā mea e pono ai i kēlā me kēia lā, etc.
HDPE: Hoʻohana nui ʻia no nā ligatures, nā kaula, nā ʻupena lawaiʻa, etc.
Ka māhele ʻana o ka mana hana PE ma ka ʻāina
Ma ʻApelila 2022, ua hōʻea ka mana hana PE o Kina ma kahi o 29.18 miliona tons, ʻo ia ka 21% o ka nui o ka mana hana PE o ka honua.Hiki ke ʻike ʻia mai ka ʻikepili i ka nui o ka mana hana PE honua ma Kina, ʻAmelika Hui Pū ʻIa a me Saudi Arabia.ʻO Kina ka ʻāina me ka nui o ka hana polyethylene i ka honua.
He aha ka pepa i uhi ʻia e PE?
Ua loaʻa iā mākou ka ʻike hohonu o ka PE ma luna, no laila he aha ka pepa i uhi ʻia ʻo PE?ʻO ka mea maʻalahi, ʻo ka pepa i uhi ʻia ʻo PE he mea hoʻohui i hana ʻia i ka pepa e like me ke kumu kumu a uhi ʻia me kahi ʻāpana o ka polyethylene film ma ka pepa kumu, ʻo ia hoʻi, ua uhi ʻia nā ʻāpana plastik ma ka ʻili o ka pepa e kahi mīkini hoʻolei.He maʻalahi ka pulu, akā ma hope o ka hui pū ʻia me ka polyethylene, hiki i ka pepa i uhi ʻia ke hoʻokō i nā hopena o ka wai ʻole, ʻaila-hōʻoia a me ka pale wela kiʻekiʻe.
Hoʻokaʻawale ʻana i ka pepa i uhi ʻia e PE
E like me ka ʻokoʻa ma waena o ka helu o nā kiʻi i uhi ʻia, hiki ke hoʻokaʻawale ʻia i hoʻokahi ʻaoʻao PE i uhi ʻia i ka pepa, ʻelua ʻaoʻao PEcoated pepa, a interlayer PE i uhi ʻia i ka pepa.
1. Hoʻokahi-ʻaoʻao PE uhi pepa
Hoʻopili ʻia ka pepa PEcoated ʻaoʻao hoʻokahi me ka kiʻiʻoniʻoni PE ma kekahi ʻaoʻao o ka pepa kumu.Hoʻohana ʻia ia i nā kīʻaha pepa inu wela, pepa hamburger, etc.
2. Pepa i uhi ʻia PE ʻelua ʻaoʻao
ʻO ka pepa i uhi ʻia ʻelua ʻaoʻao ʻo PE ka uhi ʻana ma nā ʻaoʻao ʻelua o ka pepa kumu.Hoʻohana ʻia i nā kīʻaha pepa inu anu.
Pepa i uhi ʻia ma waena
ʻO ka pepa i uhi ʻia ʻo Sandwich e kau i ka uhi PE ma waena o nā pepa kumu ʻelua e synthesize i hoʻokahi ʻāpana pepa e hoʻonui ai i ka maʻalahi o ka pepa.
Hoʻohana maʻamau i: desiccant packaging, ʻeke ʻeke meaʻai, etc.
Wahi a nā ʻāpana like ʻole, hiki ke hoʻokaʻawale ʻia i ʻelua mau ʻano: ke kiʻi ʻoniʻoni a me ka sub-film.
ʻO ke kiʻi ʻoniʻoni ʻoniʻoni he kiʻiʻoniʻoni polyethylene ʻelua ʻaoʻao me ka ʻili ʻālohilohi a me ka lima ʻoluʻolu.ʻO ke kiʻi matte he kiʻiʻoniʻoni polyethylene matte me kahi kiʻiʻoniʻoni matte me kahi ʻili fogged.
He kiʻekiʻe ka wehewehe ʻana o nā sequins a ʻoi aku ka waihoʻoluʻu o ka mea paʻi.ʻO nā kiʻiʻoniʻoni Matte ʻoi aku ka muted i ke kala.
Ka hoʻohana ʻana i ka pepa i uhi ʻia
ʻO ka pepa i uhi ʻia e pili pono ana i ko mākou ola i kēlā me kēia lā a he nui nā mea hoʻohana, hoʻohana nui ʻia i ka ʻeke, meaʻai, lāʻau lapaʻau, uila, lako, ʻoki make, etc.
Ka laulā o ka pepa i uhi ʻia:
Ka laulā o ka hoʻohana ʻana i ka pepa i uhi ʻia
1. Kemika: desiccant packaging, mothballs, holoi lepo, preservatives.
2. Meaʻai: pūʻolo noodle, pahu hauʻulu, waiū.
Ka manawa hoʻouna: Nov-16-2022
