ʻO UHMWPE, i ʻike ʻia ʻo ka polyethylene modulus kiʻekiʻe ikaika, ʻo ia kekahi o nā mea hana kiʻekiʻe o ka honua.Ma muli o kāna mau waiwai maikaʻi loa e like me ka pale ʻana i ka corrosion, ke kūpaʻa ʻana a me ka haʻahaʻa haʻahaʻa, hoʻohana ʻia ia i kēia manawa i nā mea pale kaua koa, nā mea mīkini pūʻali koa, nā lako aerospace a me nā kahua kaua ʻē aʻe.
ʻO UHMWPE, i ʻike ʻia ʻo ka polyethylene modulus kiʻekiʻe ikaika, ʻo ia kekahi o nā mea hana kiʻekiʻe o ka honua.Ma muli o kāna mau waiwai maikaʻi loa e like me ka pale ʻana i ka corrosion, ke kūpaʻa ʻana a me ka haʻahaʻa haʻahaʻa, hoʻohana ʻia ia i kēia manawa i nā mea pale kaua koa, nā mea mīkini pūʻali koa, nā lako aerospace a me nā kahua kaua ʻē aʻe.ʻO ka hoʻomohala ʻana o ka fiber hana kiʻekiʻe ke kumu o nā lako kaua o ka ʻāina, a hiki i nā mea kiʻekiʻe ke alakaʻi i ka ʻenehana pūʻali koa holomua, i lilo i kumu waiwai nui no ke kūkulu ʻana i kahi ʻāina ikaika hou, a noho i kahi kūlana hoʻoholo i loko. ke kahua o nā mea kaua ma ka honua holoʻokoʻa.
- Nā waiwai o ka UHMWPE fiber
Loaʻa i ka fiber UHMWPE nā waiwai piha maikaʻi loa, liʻiliʻi kona ʻano pili, hiki ke lana ma luna o ka wai.AUHMWPE puluniuʻo ia ka fiber ikaika loa o ka honua i kēia manawa.Ke hoʻohālikelike ʻia me ke kila, ʻoi aku ka ikaika o ka fiber UHMWPE ma mua o ʻumi mau manawa ma mua o ke kila kiʻekiʻe.Eia kekahi, ʻo ka fiber UHMWPE ka ikaika o ka corrosion resistance, ka pale kemika, ka pale ʻana a me nā waiwai ʻē aʻe, ka hana holoʻokoʻa, UHMWPE fiber i nā kula koʻikoʻi ma Kina.
1.1 ʻO nā waiwai mechanical maikaʻi loa
Hoʻohālikelike ʻia me nā fibers hana kiʻekiʻe, ʻo ka UHMWPE fiber density ka lua wale nō i ka fiber PE maʻamau a me ka fiber polypropylene, a ʻo ia ka mea fiber maikaʻi loa me ka liʻiliʻi liʻiliʻi ma waena o nā mea pale.Hiki iā ia ke hoʻemi i ke kaumaha o ka mea a loaʻa i kahi hopena māmā ʻoiai e hōʻoiaʻiʻo ana i ka maikaʻi o ka pōkā.
Ke hoʻohālikelike ʻia me nā waiwai ʻē aʻe, ʻo ka ikaika tensile o UHMWPE ka lua wale nō ma mua o ka PBO a me ka polyaryl ester fiber, a he 0.1 wale nō ka ʻokoʻa mai ka polyaryl ester fiber.Hiki ke ʻike ʻia he ikaika tensile maikaʻi ʻo UHMWPE.
Ke hoʻohālikelike ʻia me nā fibers ʻē aʻe, ʻo ka modulus mua ka lua wale nō i ka PBO a me ka fiber carbon, e hōʻike ana he kūpaʻa maikaʻi ka fiber i ka hoʻopōʻino ʻana a ʻaʻole hiki ke hoʻololi.He ʻano fiber hiʻohiʻona me ka ikaika kikoʻī kiʻekiʻe a me ka modulus kikoʻī, kahi mea koʻikoʻi i nā mea pale.
1.2 Hana ʻia ka hana ʻana i ka uila
He kakaikahi loa ka UHMWPE fiber reflectance radar wave, me ka hoʻokō conduction kiʻekiʻe, e hoʻonui i ka dielectric mau o nā mea hana.ʻOiai ʻo ka dielectric mau a me ka lilo o ka polyethylene ka mea liʻiliʻi loa ma waena o nā mea ʻē aʻe, ʻo ka UHMWPE fiber ka hana i hiki ʻole ke hiki i ka fiber polyethylene kuʻuna, a ʻoi aku ka maikaʻi ma mua o nā mea maʻamau, no laila ʻo ia ka mea i makemake ʻia no ka radar radome, me kūlana kiʻekiʻe a me ka hopena māmā.
1. 3 Ke kū'ē i ka wā a me ke kū'ē
Hiki i ka fiber UHMWPE ke pale aku i ka wā a hiki ke hoʻomau i ka hana kiʻekiʻe mua ʻaʻole i hoʻololi ʻia ma hope o ka lōʻihi o ka hoʻomālamalama a me ke kaiapuni paʻakikī.Ma ka manawa like, ʻoi aku ka nui o ka pale ʻana o ka UHMWPE fiber a me ke kūlou ʻana i ka luhi ma mua o ka fiber aramid i nā mea hana kiʻekiʻe, no laila ʻoi aku ka maikaʻi o ka pale ʻana o kēia fiber ma mua o nā fibers hana kiʻekiʻe.Ma muli o kona kūpaʻa ʻaʻahu kiʻekiʻe a me ka hana maʻalahi o ka hana ʻana, loaʻa iā ia kahi manaʻo noi maikaʻi i ka ʻoihana ʻoihana.
1. 4 Ke kū'ē i ka corrosion
Paʻa paʻa ke ʻano o loko o ka fiber UHMWPE.Ma muli o ke kiʻekiʻe o ka crystallinity a me ka orientation o ke kaulahao mole i loko o ka fiber i loaʻa i ka fiber kahi inertia kemika ikaika.No laila, ma lalo o ka ʻakika a me ke kūlana kumu a i ʻole ke kūlana kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, hiki i ka fiber ke hoʻomau i kāna hana kumu ʻaʻole i hoʻololi ʻia no ka manawa lōʻihi, a hiki ke hoʻololi a pāʻani i kona waiwai i loko o ke kaiapuni paʻakikī.
1. 5 mau waiwai lubricating
Hoʻohālikelike ʻia nā mea UHMWPE me nā mea ʻenehana ʻē aʻe, he haʻahaʻa haʻahaʻa loa ka mea UHMWPE, haʻahaʻa haʻahaʻa haʻahaʻa e hana ai i ka fiber ponoʻī ʻoi aku ka maikaʻi o ka hoʻomaʻamaʻa ponoʻī ʻana, ʻo ia ka mea maikaʻi loa i loko o nā mea plastik ma lalo o ke ʻano o ka lubricant, no laila ua hoʻohana nui ʻia ka mea UHMWPE. ma ka ʻenekinia, me ka waiwai hoʻohana kiʻekiʻe loa.Hoʻohana ʻia ka fiber UHMWPE i ka hana o ka mīkini, i hoʻohālikelike ʻia i ke kila kahiko a me ke keleawe ma lalo o ka hana o ka lubricant ʻoi aku ka maikaʻi.No laila, ke hoʻohālikelike ʻia me nā mea maʻamau, ʻaʻole mālama wale ʻo UHMWPE fiber i ke kumu kūʻai kumu, akā hōʻoiaʻiʻo nō hoʻi i ka hopena hana maikaʻi loa, no laila ʻoi aku ka waiwai o ka hoʻohana.
2. Ke ala hoʻomākaukau o ka fiber UHMWPE
2.1 Ke ʻano milo gel
Nui nā ala e hoʻomākaukau ai i ka fiber UHMWPE kiʻekiʻe, akā ma muli o ke kumu o ka solvent ponoʻī, ʻaʻole hiki ke hoʻokō ʻia ka hoʻomākaukau ʻana o ka fiber UHMWPE.ʻO ka milo gel ke ala kūpono loa.He ʻokoʻa ke ʻano o ka wili gel mai ka wili maʻamau a i ʻole ka wili pulu, me ka hoʻohana pinepine ʻana i nā polymers kaumaha molekala kiʻekiʻe e like me ka mea maka, i hana ʻia me ka semi-dilute solution e like me ka spinning dope, flexible chain solution i nā kuʻekuʻe i loko o ka solution semi dilute, a laila wili, crystallization, kiʻekiʻe tensile stretch kaulahao, ma hope o ka unuhi ʻana i ka mālama ʻana i nā manawa i ka thermal stretching, i hana ʻia me ka ikaika kiʻekiʻe a me nā fiber modulus kiʻekiʻe.ʻO ke ʻano o ka wili gel e like me kēia mau hiʻohiʻona: (1) hoʻohana ʻia ka polymer kaumaha ultra-high molecular ma ke ʻano he mea maka;(3) Ua hoʻokō ʻia ka hoʻolōʻihi hyperthermal, a ʻoi aku ka nui o ka tensile ma mua o 30.
2.2 ʻO ke ʻano wili hoʻoheheʻe ʻana i ka plasticizing
Hana ʻia ka milo hoʻoheheʻe me ka polymer hehee e ka milo hoʻoheheʻe a me ka extruding.ʻO ka wili hoʻoheheʻe ʻia ma ke kumu o ka wili hoʻoheheʻe, hoʻohui i kahi nui kūpono o ka diluent i ka hoʻoheheʻe polymer no ka wili ʻana, ma o ka māhoe māhoe i hui pū ʻia, a laila hoʻokuʻu ʻia, hoʻomoʻi ʻia i loko o ka mea hoʻoheheʻe, a laila hiki ke loaʻa ka ikaika kiʻekiʻe. a me ka fiber modulus polyethylene kiʻekiʻe.
2.3 High pressure solid state extrusion ala
ʻO ke kumu o ka extrusion forming ʻo ia ka granular solid solvent i hoʻohui ʻia i ka extruder, ʻo ka pahu waiwai i loaʻa ka solvent paʻa i hoʻomehana ʻia i ka mahana hoʻoheheʻe, i hoʻoheheʻe ʻia ka mea paʻa, lawe ʻia ka mea hoʻoheheʻe i ke poʻo o ka mīkini me kahi. ʻano paʻa, a laila ma hope o ka hoʻoluʻu ʻana a me ke ʻano, hoʻopaʻa ʻia ka huahana hope.ʻO ke ʻano o ka extrusion paʻa kiʻekiʻe ma ke kumu o ka hoʻoheheʻe ʻana i ke kaomi kiʻekiʻe, ka hoʻoheheʻe ʻana, a laila ma o ka lua jet, a laila kiʻekiʻe tensile, a loaʻa i ka polyethylene kaumaha kiʻekiʻe.
2.4 Ke ala crystallization o ka ʻili
Ma muli o ka lohi o ka ulu ʻana o ke aniani fibrous, ʻaʻole i hoʻohana ʻia kēia ʻano hana i ka hoʻomākaukau ʻana i ka fiber UHMWPE.
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Ka manawa hoʻouna: Oct-14-2018