nūhou

ʻO Ultrahigh molecular weight polyethylene (UHMW-PE) kahi ʻano mea ʻenehana thermoplastic me ka hoʻolālā laina a me nā waiwai piha maikaʻi loa.
Ma mua o nā makahiki 1980, ʻo ka awelika o ka ulu makahiki o ka honua he 8.5%.Ma hope o ka 1980s, hiki i ka ulu ulu ʻana i 15% ~ 20%.ʻO ka awelika o ka ulu ʻana o ka makahiki ma Kina ma luna o 30%.I ka makahiki 1978, he 12,000 ~ 12,500 tons ka nui o ka honua, a i ka makahiki 1990, he 50,000 tons ka koi honua, a ʻo ʻAmelika Hui Pū ʻIa he 70%.Mai ka makahiki 2007 a i ka makahiki 2009, ua lilo ʻo Kina i hale hana plastik ʻenekinia honua, a ua ulu wikiwiki ka ʻoihana polyethylene kaumaha ultra-molecular.Penei ka moʻolelo hoʻomohala:
ʻO ka manaʻo kumu o ka ultrahigh molecular weight polyethylene fiber i hāpai mua ʻia i ka makahiki 1930.
ʻO ka puka ʻana o ka wili gel a me ka wili plasticized ua hana i nā holomua nui i ka ʻenehana o ultra-high molecular weight polyethylene.
I nā makahiki 1970, ua hoʻokumu mua ʻo Capaccio a me Ward o ke Kulanui o Leeds ma United Kingdom i ke kiʻekiʻe molecular weight polyethylene fiber me ke kaumaha molekala o 100,000.
I ka makahiki 1964, ua hoʻomohala maikaʻi ʻia a hoʻokomo ʻia i loko o ka hana ʻenehana ma Kina.
I ka makahiki 1975, ua hana ʻo Netherlands iā Gelspinning me ka hoʻohana ʻana i ka decalin ma ke ʻano he mea hoʻoheheʻe, hoʻomākaukau maikaʻi i ka fiber UHMWPE, a noi ʻia no kahi patent ma 1979. Ma hope o ʻumi makahiki o ka noiʻi, ua hōʻike ʻia ʻo ke ʻano o ka wili gel he ala kūpono no ka hana ʻana i ka fiber polyethylene ikaika kiʻekiʻe. nona ka ʻoihana e hiki mai ana.
I ka makahiki 1983, ua hana ʻia ka fiber ultra-high molecular weight polyethylene (UHMWPE) ma Iapana ma o ka extrusion gel a me ke ʻano hoʻolōʻihi nui me ka paraffin ma ke ʻano he ʻūhā.
Ma Kina, ua helu ʻia ka paipu polyethylene paona kiʻekiʻe kiʻekiʻe ma ke ʻano he hoʻolālā hoʻolaha nui o nā hoʻokō ʻepekema a me ka ʻenehana i ka makahiki 2001 e ka Ministry of Science and Technology (2000)056 palapala, nona nā mea kemika hou a me nā huahana hou.Ua hoʻopaʻa inoa ke Kuhina ʻEpekema a me ʻenehana o ke Komisina Hoʻolālā Mokuʻāina i ka ultra-high molecular weight polyethylene pipe ma ke ʻano he papahana koʻikoʻi ma ke kahua koʻikoʻi o ka ʻoihana kiʻekiʻe.
E ʻike i nā ʻano hana
ʻO ka polyethylene kaumaha ultra-kiʻekiʻe he ʻano o ka polymer compound, paʻakikī ke kaʻina hana, a loaʻa ke kūpaʻa kūʻokoʻa, ka lubricating ponoʻī, ka ikaika kiʻekiʻe, nā waiwai paʻa paʻa, ka hana anti-kahiko ikaika, no laila i ka hoʻokae ʻana i ka ʻoiaʻiʻo a me ka hoʻopunipuni. polymer polyethylene, pono mākou e hoʻolohe i nā hiʻohiʻona o ia mea, ʻo ke ʻano hoʻokaʻawale kikoʻī penei:
1. ʻO ke kānāwai kaupaona: ʻo ka hapa o nā huahana i hana ʻia me ka polyethylene kaumaha ultra-high molecular maʻemaʻe ma waena o 0.93 a me 0.95, liʻiliʻi ka nui, a hiki ke lana ma luna o ka wai.Inā ʻaʻole ka polyethylene maʻemaʻe, e pohō i lalo.
2. ʻO ke ʻano hiʻohiʻona: ʻo ka ʻili o ka polyethylene kaumaha ultra-kiʻekiʻe maoli he palahalaha, ʻaʻahu, ʻoluʻolu a ʻaʻahu like loa ka mānoanoa o ka ʻāpana, inā ʻaʻole maʻemaʻe ka waihoʻoluʻu o ka polyethylene a ʻaʻole like ka mānoanoa.
ʻO ke ʻano hoʻāʻo 3 lihi: ʻo ke kaumaha o ka polyethylene flanging flanging maʻemaʻe he poepoe, ʻaʻahu, ʻoluʻolu, inā ʻaʻole maʻemaʻe polyethylene material flanging hope māwae, a ma hope o ka wela ʻana o ka flanging e ʻike ʻia ke ʻano o ka slag.