Hana ʻia ka lāʻau Nitrile e ka emulsion polymerization o ka butadiene a me ka acrylonitrile.Hoʻokumu nui ʻia ʻo Nitrile rubber e ka polymerization emulsion haʻahaʻa.Loaʻa iā ia ke kūpaʻa ʻaila maikaʻi, ke kūpaʻa ʻaʻahu kiʻekiʻe, ka pale wela maikaʻi a me ka adhesion ikaika..ʻO kona mau hemahema ʻo ia ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa kūʻē, maikaʻi ʻole ka ozone kūʻē, maikaʻi ʻole nā waiwai uila, a haʻahaʻa iki ka elasticity.Hoʻohana nui ʻia ka lāʻau Nitrile i ka hana ʻana i nā huahana lāʻau pale ʻaila.1) Introduction Ua kapa ʻia ʻo ia ʻo NBR.He lāʻau synthetic i hana ʻia e ka copolymerization o ka butadiene a me ka acrylonitrile.ʻO ia ka lāʻau synthetic me ke kūpaʻa ʻaila maikaʻi (ʻoi aku ka ʻaila alkane) a me ke kūpaʻa ʻelemakule.ʻElima ʻano o ka maʻiʻo acrylonitrile (%) i loko o ka nitrile rubber: 42-46, 36-41, 31-35, 25-30, a me 18-24.ʻOi aku ka nui o ka acrylonitrile maʻiʻo, ʻoi aku ka maikaʻi o ka pale ʻana i ka aila, akā e emi ana ke kū anuanu e like me ia.Hiki ke hoʻohana lōʻihi i ka lewa ma 120 ° C a i ʻole i ka ʻaila ma 150 ° C.Eia kekahi, loaʻa iā ia ke kūpaʻa wai maikaʻi, ka paʻa o ka ea a me ka hana hoʻopaʻa maikaʻi.Hoʻohana nui ʻia i ka hana ʻana i nā huahana lāʻau pale aila, nā ʻāpana ʻaila-kūʻokoʻa, nā ʻeke, nā lima lima, nā puʻupuʻu maʻalahi, nā paipu palupalu, ka paʻi ʻana a me ke kala ʻana i nā wili lāʻau, nā mea uila uila, etc., a lilo i mea nui i nā ʻoihana e like me nā kaʻa. , mokulele, ʻaila, a me ke kope ʻana i nā mea elastic.
1. Kapa ʻia ʻo ka ʻōpala Nitrile hana i kapa ʻia ʻo butadiene-acrylonitrile rubber, i kapa ʻia ʻo NBR, me ke kaumaha molekala ma kahi o 700,000.ʻO ke keʻokeʻo a hiki i ka melemele māmā nui a pauda paʻa, pili pili 0.95-1.0.ʻOi aku ka maikaʻi o ka ʻaila nitrile, ʻo ka lua wale nō i ka polysulfide rubber a me ka fluorine rubber, a maikaʻi hoʻi ke kūpaʻa a me ka paʻa o ka ea.ʻO ka hemahema o ka nitrile rubber ka mea ʻaʻole ia e kū i ka ozone a me ka aromatic, halogenated hydrocarbons, ketones a me nā ester solvents, no laila ʻaʻole kūpono ia no nā mea insulating.ʻOi aku ka maikaʻi o ka pale wela ma mua o ka styrene-butadiene rubber a me ka neoprene, a hiki ke hana ma 120 ° C no ka manawa lōʻihi.ʻO ka paʻa o ka ea ka lua wale nō ma mua o ka butyl rubber.Hoʻopili ʻia ka hana o ka nitrile rubber e ka ʻike o ka acrylonitrile.Ke piʻi aʻe ka ʻike o ka acrylonitrile, hoʻonui ka ikaika tensile, ka pale ʻana i ka wela, ka pale ʻana i ka aila, ka paʻa ʻana o ka ea a me ka paʻakikī, akā ke emi nei ka elasticity a me ke anuanu.ʻAʻole maikaʻi ke kūpaʻa ozone a me nā waiwai insulation uila, akā maikaʻi ke kūpaʻa wai.
2 Hoʻohana nui ʻia ʻo Nitrile rubber no ka hana ʻana i nā huahana ʻaila-kūpaʻa, e like me nā paipu ʻaila-kūpaʻa, nā lipine, nā diaphragms a me nā ʻeke aila nui, a me nā mea ʻē aʻe. ʻO nā apo, nā sila aila, nā kīʻaha ʻili, nā diaphragms, nā valves, bellows, rubber hose, sila, foam, etc., ua hoʻohana pū ʻia no ka hana ʻana i nā ʻāpana pale a me nā ʻāpana pale.
3 Nā ʻōlelo aʻoaʻo no ka hoʻomaikaʻi ʻana i ka hana o ka nitrile rubber Oil resistance: Ma ka hoʻonui ʻana i ka ʻike o ka acrylonitrile, hiki ke hoʻomaikaʻi ʻia kona kūpaʻa aila, akā e emi ke kū anuanu e like me ia.Hiki ke hoʻohana lōʻihi i ka lewa ma 120 ° C a i ʻole i ka ʻaila ma 150 ° C.Eia kekahi, loaʻa iā ia ke kūpaʻa wai maikaʻi, ka paʻa o ka ea a me ka hana hoʻopaʻa maikaʻi.Hoʻohana nui ʻia i ka hana ʻana i nā huahana lāʻau pale aila, nā ʻāpana ʻaila-kūʻokoʻa, nā ʻeke, nā lima lima, nā puʻupuʻu maʻalahi, nā paipu palupalu, ka paʻi ʻana a me ke kala ʻana i nā wili lāʻau, nā mea uila uila, etc., a lilo i mea nui i nā ʻoihana e like me nā kaʻa. , mokulele, ʻaila, a me ke kope ʻana i nā mea elastic.Hoʻomaikaʻi i ke kūpaʻa anu a me ke kūpaʻa haʻahaʻa haʻahaʻa.Ma ka hoʻohana ʻana i ka nitrile rubber me nā ʻano acrylonitrile ʻokoʻa a me ka hoʻoponopono ʻana i ka hui pū ʻana o nā mea anti-aging like ʻole, hoʻoikaika i nā mea hana a me nā plasticizers, hiki ke loaʻa kahi ʻano nitrile pale anuanu me ke kūpaʻa ʻaila maikaʻi a me ke kūpaʻa luhi.
Ka manawa hoʻouna: Iune-16-2023