ʻO ka Rubber kahi ʻano mea polymer elastic kiʻekiʻe, ma lalo o ka hana o kahi ikaika o waho liʻiliʻi, hiki iā ia ke hōʻike i kahi kiʻekiʻe o ka deformability, a ma hope o ka wehe ʻana o ka ikaika o waho, hiki iā ia ke hoʻi i kona ʻano kumu.Ma muli o ka elasticity kiʻekiʻe o ka lāʻau, hoʻohana nui ʻia ia i ka cushioning, shockproof, dynamic sealing, etc. ʻO ka noi i ka ʻoihana paʻi e pili ana i nā ʻano wili wili a me nā paʻi paʻi.Me ka holomua o ka ʻoihana pāpaʻi, ua hoʻomohala ʻia nā huahana lāʻau mai ka hoʻohana hoʻokahi o ka lāʻau kūlohelohe a hiki i nā ʻano ʻāpana synthetic.
1. Lapa maoli
Hoʻomalu ʻia ka lāʻau kūlohelohe e nā hydrocarbons rubber (polyisoprene), loaʻa kahi mea liʻiliʻi o ka protein, ka wai, nā waikawa resin, nā kō a me nā paʻakai inorganic.He nui ka elasticity, ka ikaika tensile kiʻekiʻe, ke kūpaʻa waimaka maikaʻi a me ka insulation uila, ke kūpaʻa maikaʻi a me ka pale maloʻo, ka hana maikaʻi, maʻalahi ka paʻa ʻana me nā mea ʻē aʻe, a ʻoi aku ka maikaʻi o kāna hana holoʻokoʻa ma mua o ka nui o ka synthetics rubber.ʻO nā hemahema o ka ʻōpala maoli he kūʻē maikaʻi ʻole i ka oxygen a me ka ozone, maʻalahi i ka ʻelemakule a me ka deterioration;kū'ē maikaʻiʻole i kaʻaila a me nā mea hoʻoheheʻe, haʻahaʻa haʻahaʻa i ka waika a me ka alkali, haʻahaʻa kū'ē i ka corrosion;pale wela haʻahaʻa.ʻO ka pae wela o ka hana ʻana o ka lāʻau kūlohelohe: ma kahi o -60℃~+80℃.Hoʻohana ʻia ka lāʻau lapaʻau maoli no ka hana ʻana i nā kaila, nā kāmaʻa kīpē, nā hose, nā lipine, nā papa insulating a me nā pū o nā uea a me nā kaula, a me nā huahana maʻamau.Kūpono maoli ka lāʻau lapaʻau no ka hana ʻana i nā mea hoʻopau torsional vibration, nā mea hoʻoheheʻe engine, nā kākoʻo mīkini, nā mea hoʻokuʻu metala-metala, nā diaphragms, a me nā huahana i hoʻoheheʻe ʻia.
2. SBR
ʻO SBR kahi copolymer o ka butadiene a me ka styrene.ʻO ka hana o ka lāʻau styrene-butadiene kahi kokoke i ka lāʻau maoli, a ʻo ia ka hana nui loa o ka lāʻau synthetic kumu nui.ʻO nā hiʻohiʻona o ka styrene-butadiene rubber, ʻo ia ke kūpaʻa ʻana o ka ʻaʻahu, ka pale ʻana i ka wā kahiko a me ke kūpaʻa wela ma mua o ka lāʻau kūlohelohe, a ʻoi aku kona ʻano ma mua o ka ʻōpala maoli.ʻO nā hemahema o ka styrene-butadiene rubber he: haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa haʻahaʻa a me ka waimaka;maikaʻi ʻole ka hana ʻana, ʻoi aku ka maikaʻi ʻole o ka paʻa ponoʻī a me ka ikaika haʻahaʻa ʻōmaʻomaʻo.Ka pae wela o ka styrene-butadiene rubber: ma kahi o -50℃~+100℃.Hoʻohana nui ʻia ka styrene butadiene rubber e hoʻololi i ka lāʻau kūlohelohe no ka hana ʻana i nā kaʻa, nā ʻāpana ʻōpala, nā paipu, nā kāmaʻa a me nā huahana maʻamau.
3. Nitrile rubber
He copolymer o ka butadiene a me ka acrylonitrile ka nitrile rubber.Hōʻike ʻia ʻo Nitrile rubber e kona kūpaʻa maikaʻi ʻana i ka ʻaila a me ka ʻaila aliphatic hydrocarbon, ka lua wale nō i ka rubber polysulfide, acrylic ester a me ka fluorine rubber, aʻo ka nitrile rubber i ʻoi aku ka maikaʻi ma mua o nā kumulāʻau kumu nui.ʻO ke kūpaʻa wela maikaʻi, ka paʻa ʻana o ka ea, ke kūpaʻa a me ka pale wai, a me ka hoʻopili ikaika.ʻO nā hemahema o ka nitrile rubber ka maikaʻi ʻole o ke anuanu a me ka pale ozone, haʻahaʻa haʻahaʻa a me ka elasticity, maikaʻi ʻole ka waika, ʻino ka uila uila, a me ka maikaʻi ʻole o ka pale ʻana i nā solvents polar.Ka pae wela o ka nitrile rubber: ma kahi o -30℃~+100℃.Hoʻohana nui ʻia ʻo Nitrile rubber no ka hana ʻana i nā huahana ʻaila-resistant, e like me nā hoses, nā huahana sealing, rubber rollers, etc.
4. Hydrogenated nitrile rubber
He copolymer o ka butadiene a me ka acrylonitrile.Loaʻa ka hydrogenated nitrile rubber ma ka hydrogenating piha a hapa paha i nā mea paʻa pālua i loko o ka butadiene o NBR.Hōʻike ʻia ka lāʻau nitrile Hydrogenated e ka ikaika mechanical kiʻekiʻe a me ke kūpaʻa abrasion, ʻoi aku ka maikaʻi o ka pale ʻana i ka wela ma mua o ka NBR ke hoʻopili ʻia me ka peroxide, a me nā waiwai ʻē aʻe e like me ka nitrile rubber.ʻO ka hemahema o ka hydrogenated nitrile rubber kona kumu kūʻai kiʻekiʻe.Ka pae wela o ka hydrogenated nitrile rubber: ma kahi o -30℃~+150℃.Hoʻohana nui ʻia ka lāʻau nitrile Hydrogenated no nā huahana hoʻopaʻa ʻana i ka aila a me ke kiʻekiʻe.
5. Ethylene propylene rubber
ʻO ka ethylene propylene rubber he copolymer o ka ethylene a me ka propylene, a ua māhele ʻia i ʻelua yuan ethylene propylene rubber a me ʻekolu yuan ethylene propylene rubber.Hōʻike ʻia ʻo Ethylene-propylene rubber e ke kūʻē ozone maikaʻi loa, ka pale ʻana i ka ultraviolet, ka pale ʻana i ka wā a me ka pale ʻana i ka wā kahiko, ke kūlana mua ma waena o nā lāʻau lapaʻau.Loaʻa i ka ethylene-propylene rubber ka insulation uila maikaʻi, ke kūpaʻa kemika, ka elasticity hopena, ka waikawa a me ke kūpaʻa alkali, haʻahaʻa haʻahaʻa kikoʻī, a hiki ke hoʻohana ʻia no ka hoʻopiha piha.Hiki i ka pale wela ke hiki i 150°C, a he mea kū'ē i ka polar solvents-ketones, esters, etc., akā, ethylene propylene rubber 'aʻole kū'ē i aliphatic hydrocarbons a me aromatic hydrocarbons.ʻO nā mea ʻē aʻe o ke kino a me ka mīkini o ka ethylene propylene rubber he haʻahaʻa iki i ka lāʻau maoli a ʻoi aku ka maikaʻi ma mua o ka styrene butadiene rubber.ʻO ka hemahema o ka ethylene-propylene rubber, ʻo ia ka maikaʻi ʻole o ka hoʻopili ʻana iā ia iho a me ka pili like ʻana, a ʻaʻole maʻalahi ke hoʻopaʻa.Ka pae wela o ka ethylene propylene rubber: ma kahi o -50℃~+150℃.Hoʻohana nui ʻia ʻo Ethylene-propylene rubber ma ke ʻano he mea hana kemika, ka uwea a me ke kaula kaula, ka hose mahu, ke kāʻei conveyor pale wela, nā huahana kaʻa a me nā huahana ʻoihana ʻē aʻe.
6. ʻO ka lāʻau silikoni
ʻO ka pahu silikoni kahi pahu kūikawā me nā kinikona a me ka oxygen i loko o ke kaulahao nui.ʻO ka mea silikoni ka mea nui i ka silicone rubber.ʻO nā hiʻohiʻona koʻikoʻi o ka silicone rubber ka pale ʻana i ka wela kiʻekiʻe (a hiki i 300°C) a me ka haʻahaʻa haʻahaʻa haʻahaʻa (haʻahaʻa -100°C).I kēia manawa ʻo ia ka mea maikaʻi loa kiʻekiʻe kiʻekiʻe wela kūʻokoʻa lāʻau;i ka manawa like, ʻoi aku ka maikaʻi o ka insulation uila silicone a paʻa i ka thermal oxidation a me ka ozone.He kūʻokoʻa loa ia a he mea kemika.ʻO nā hemahema o ka silicone rubber he haʻahaʻa haʻahaʻa ka ikaika mechanical, maikaʻi ʻole ka aila kūʻē, ka pale ʻana i ka solvent, ka waikawa a me ke kūpaʻa alkali, paʻakikī i ka vulcanize, a ʻoi aku ke kumukūʻai.ʻO ka wela o ka hoʻohana ʻana i ka lāʻau silicone: -60℃~+200℃.Hoʻohana nui ʻia ʻo Silicone rubber no ka hana ʻana i nā huahana kūpaʻa kiʻekiʻe a haʻahaʻa (hoses, sila, etc.)No ka mea, ʻaʻohe mea ʻawaʻawa a ʻono ʻole, hoʻohana ʻia ka silicone rubber i ka ʻoihana meaʻai a me nā ʻoihana olakino.
7. Palena polyurethane
He elastomer ka polyurethane rubber i hana ʻia e ka polymerization o ka polyester (a i ʻole polyether) a me nā pūhui diisocyanate.Hōʻike ʻia ka lāʻau polyurethane e ka pale ʻana i ka abrasion maikaʻi, ʻo ia ka mea maikaʻi loa ma waena o nā ʻano lāʻau āpau;ʻO ka polyurethane rubber ka ikaika kiʻekiʻe, ka elasticity maikaʻi a me ke kūpaʻa ʻaila maikaʻi.ʻOi aku ka maikaʻi o ka polyurethane rubber i ka pale ʻana o ka ozone, ka pale ʻana i ka wā kahiko, a me ka paʻa o ka ea.ʻO nā pōʻino o ka polyurethane rubber ka maikaʻi ʻole o ka wela, ka maikaʻi ʻole o ka wai a me ke kūpaʻa alkali, a me ka maikaʻi ʻole o ke kūpaʻa ʻana i nā hydrocarbons aromatic, chlorinated hydrocarbons, a me nā mea hoʻoheheʻe e like me ketones, esters, a me nā waiʻona.ʻO ka hoʻohana ʻana i ka wela o ka polyurethane rubber: ma kahi o -30℃~+80℃.Hoʻohana ʻia ka lāʻau polyurethane e hana i nā kaila kokoke i nā ʻāpana, nā gaskets, nā huahana haʻalulu, nā wili pahu, a me nā huahana lāʻau paʻa kiʻekiʻe a me ka ʻaila.
Ka manawa hoʻouna: Jul-07-2021
