Hoʻohui ʻia nā waiwai kūpono o ka butyl rubber.Aia nō kēia mau waiwai i ka butyl adhesive
(1) Hiki i ka ea
ʻO ka wikiwiki o ka hoʻopuehu ʻana o ke kinoea i loko o ka polymer e pili ana i ka hana wela o nā molekole polymer.ʻO nā pūʻulu methyl ʻaoʻao i loko o ke kaulahao molekula butyl rubber i hoʻonohonoho pono ʻia, e kaupalena ana i ka hana wela o nā molekole polymer.No laila, haʻahaʻa ke kinoea permeability a maikaʻi ka paʻa kinoea.
(2) Hoʻololi wela
ʻO nā vulcanizates butyl rubber ka maikaʻi o ka pale wela a me ka loli.Hiki ke hoʻohana ʻia ka sulfur vulcanized butyl rubber i ka lewa no ka manawa lōʻihi ma 100 ℃ a i ʻole ka wela iki.ʻO ka mahana noi o ka resin vulcanized butyl rubber hiki ke hiki i 150 ℃ - 200 ℃.No ke ʻano hoʻohaʻahaʻa ke ʻano o ka oxygen thermal o ka butyl rubber, a ke palupalu nei ka ʻelemakule.
(3) ʻO ka lawe ʻana i ka ikehu
ʻO ka molecular structure o ka butyl rubber he pōkole o nā paʻa pālua, a he nui ka dispersion density o nā hui methyl chain side, no laila he mau hiʻohiʻona maikaʻi loa o ka loaʻa ʻana o ka vibration a me ka ikehu hopena.ʻO nā hiʻohiʻona hou o ka butyl rubber ʻaʻole iʻoi aku ma mua o 20% i loko o kahi ākea ākea (- 30-50 ℃), e hōʻike pono ana i ka hiki o ka butyl rubber ke loaʻa i nā hana mechanical ʻoi aku ka maikaʻi ma mua o nā rubbers ʻē aʻe.ʻO ka waiwai hoʻoheheʻe o ka butyl rubber i ka wikiwiki deformation kiʻekiʻe i loko o ka māhele polyisobutylene.I ka laulā nui, ʻaʻole ia e pili i ka mahana o ka noi, ke degere o ka unsaturation, ke ʻano vulcanization a me ka hoʻololi ʻana.No laila, ʻo ka butyl rubber kahi mea kūpono no ka hoʻohaʻahaʻa leo a me ka hoʻohaʻahaʻa haʻalulu i kēlā manawa.
(4) Haʻahaʻa wela waiwai
He spiral ke kahua ākea o ka butyl rubber molecular chain.ʻOiai he nui nā pūʻulu methyl, ua hoʻopuehu ʻia kēlā me kēia hui pūʻulu methyl ma nā ʻaoʻao ʻelua o ka spiral e kahi kihi.No laila, ʻo ka butyl rubber molecular kaulahao he ʻano akahai, me ka haʻahaʻa aniani hoʻololi wela a me ka elasticity maikaʻi.
(5) Ozone a me ke kūʻokoʻa
ʻO ka saturation kiʻekiʻe o ka butyl rubber molecular chain e loaʻa iā ia ke kūpaʻa ozone kiʻekiʻe a me ke kūpaʻa wā kahiko.ʻO ka pale ozone ma kahi o 10 mau manawa kiʻekiʻe ma mua o ka lāʻau kūlohelohe.
(6) Ka hoʻololi kino
ʻO ke ʻano saturated kiʻekiʻe o ka butyl rubber ka mea i loaʻa i ka invariance kemika kiʻekiʻe.He kūpaʻa maikaʻi ʻo Butyl rubber i ka hapa nui o nā waikawa inorganic a me nā waikawa organik.ʻOiai ʻaʻole ia e kūpaʻa i nā ʻakika oxidizing concentrated, e like me ka waikawa nitric a me ka waikawa sulfuric, hiki iā ia ke pale aku i nā ʻakika non oxidizing a me nā ʻakika oxidizing medium concentration, a me nā hopena alkali a me nā hoʻoponopono hoʻihoʻi oxidation.Ma hope o ke komo ʻana i loko o 70% sulfuric acid no nā pule he 13, ʻaʻole i nalowale ka ikaika a me ka elongation o ka butyl rubber, ʻoiai ua hōʻemi nui ʻia nā hana o ka rubber maoli a me ka styrene butadiene rubber.
(7) Hana uila
ʻOi aku ka maikaʻi o ka pale uila a me ka pale corona o ka butyl rubber ma mua o ka lāʻau maʻalahi.ʻO ka nui o ka resistivity he 10-100 mau manawa kiʻekiʻe aʻe ma mua o ka lāʻau maʻalahi.ʻO ka hoʻomau dielectric (1kHz) he 2-3 a ʻo ka helu mana (100Hz) ʻo 0.0026.
(8) Hoʻopili wai
He haʻahaʻa loa ka nui o ke komo ʻana o ka wai o ka butyl rubber, a ʻoi aku ka haʻahaʻa o ka wai absorption rate ma ka mahana maʻamau ma mua o kēlā me nā mea ʻē aʻe, ʻo 1 / 10-1 / 15 wale nō o ka hope.
