Hoʻohana nui ʻia ʻo Hydrogenated nitrile rubber (HNBR) i nā noi e koi ana i nā waiwai dynamic kiʻekiʻe a me ka haʻahaʻa haʻahaʻa a me ke kūpaʻa ʻana i ka wā kahiko, ma hope o ka pehu ʻana i ka ʻaila a me ka wai Ma hope o ka pehu ʻana i ka ʻaila a me ka wai, hoʻohana nui ʻia ʻo HNBR i nā noi e koi ana i nā waiwai hoʻoikaika kiʻekiʻe i nā mahana kiʻekiʻe a me ke kūpaʻa maikaʻi. ʻO nā noi maʻamau e koi ana i kēia mau waiwai he mau kāʻei manawa, nā puʻupuʻu kiʻekiʻe a me nā ʻōwili pepa. Hoʻopili ʻia nā huahana lāʻau i hoʻohana ʻia i nā kūlana hoʻoikaika ikaika a hoʻokau pinepine ʻia i nā haʻalulu ma luna o kahi ākea o nā mahana a me nā alapine. ʻO nā hoʻokolohua maʻamau i hoʻohana ʻia e hōʻike i nā waiwai dynamic o nā mea i hana maʻamau i ka lumi wela.
ʻOiai hiki i kēia mau hoʻāʻo ke hōʻike maikaʻi i nā mea i hoʻopiha ʻole ʻia, ʻaʻole hōʻike ʻia nā ana ma nā mahana ambient i nā hopena o ka wela ma ka pilina filler-monomer. ka hoʻopihapiha hoʻopihapiha a me ka hoʻopili-polymer a me ko lākou hopena i nā waiwai waiwai ma nā wela kiʻekiʻe loa. No nā polymers i hoʻolālā kūikawā ʻia no nā noi wela kiʻekiʻe, pono ka hoʻomaopopo ʻana i ka hopena o ka mahana ma nā ʻenehana loea o ka mea pono no ka hoʻonui ʻana i ka hui.
I loko o kēia pepa, ua noiʻi ʻia ka hopena o ka wela ma nā waiwai ʻenehana o nā rubbers i hoʻopiha ʻia, e kālele ana i ke ʻano o ka mea hoʻopihapiha, kona ʻano, a me ka launa pū ʻana o ka mea hoʻopihapiha me HNBR a me hydrogenated carboxylated nitrile butadiene rubber (HXNBR) polymers.
No kēia kumu, hoʻohālikelike kēia pepa i ka hoʻoikaika ʻana (N330) a me ka hoʻoikaika ʻole (N990) carbon blacks me ka silica (VulcasilN). Hiki ke hoʻololi ʻia ka ʻili o ka silica me ka passive (hoʻopiha piha hydrophobic) a me ka ikaika (hoʻopiha piha hydrophobic a hoʻopaʻa ʻia i ka polymer). Hoʻohana pū ka nui o nā pūhui i nā mea hoʻopiha monomeric, e like me ka zinc diacrylate (ZAD), hiki ke polymerized in situ i ka wā vulcanization e hoʻomaikaʻi i nā waiwai waiwai. ʻAʻole i aʻo ʻia kēia mau 'fillers' hou a me kā lākou launa pū ʻana me ka matrix polymer ma ke ʻano o ka mahana a me nā waiwai pili pinepine. ʻAʻole i aʻo ʻia nā 'mea hoʻopiha' hou a me kā lākou pilina me ka polimer matrix ma ke ʻano o ka mahana a me ka pili pinepine.
Hoʻokumu ʻia i nā ʻano mechanical a me ka ikaika o nā pūhui HNBR vulcanized a unvulcanized, ua loiloi ʻia nā mea hoʻopihapiha like ʻole (carbon black, silica a me ZDA) no ka hoʻopiha ʻana. a me ZDA) i hoʻopiha ʻia i ka HNBR maʻamau a me ka HXNBR rubbers i kālailai ʻia e pili ana i ka hilinaʻi o ka mahana o nā waiwai hoʻoikaika.
ʻO ka emi ʻana o ka modulus me ka piʻi ʻana o ka mahana no nā ʻōpala unvulcanized āpau (koe wale no ka ʻōnaehana silica-filled) he hopena ia o ka hilinaʻi o ka wela o ka viscosity o ka matrix polymer. ʻO ke ʻano a me ka nui o ka mea hoʻopiha i loko o ka binder wale nō e hoʻoholo i ke kiʻekiʻe o ka hoʻoikaika ʻana a ʻaʻohe hopena i ka emi ʻana o ka wela o ka modulus binder.
No nā mea hoʻopili silica, ʻo ka coalescence o nā ʻāpana silica e hoʻoholo i ka ʻano pili i ka wela. Inā mālama ʻia ka ʻili silica me ka mālama ʻana i ka silica alkane no ka loaʻa ʻana o ka hydrophobicity, ua kāohi ʻia ka coalescence o nā ʻāpana silica. Ma nā amplitudes deformation nui, hiki ke wehewehe ʻia ka hoʻoikaika ʻana o nā ʻeleʻele kalapona āpau a me ka silica-filled pūhui he hydrodynamic reinforcement wale nō.
Inā hoʻohana ʻia ʻo ZDA ma ke ʻano he mea hoʻopiha, ʻaʻohe hopena hoʻoikaika i ʻike ʻia i loko o nā pūhui kaila unvulcanized no ka mea ʻaʻole i polymerized ʻo ZDA a hana wale ma ke ʻano he plasticizer molecular mass plasticizer. ʻO nā pūhui ZDA i loaʻa nā viscosity haʻahaʻa ma nā ʻano āpau, e hōʻike ana i nā waiwai hoʻoili maikaʻi.
Ua hōʻike ʻia ka hoʻohālikelike ʻana i nā waiwai mechanical ikaika a me nā waiwai o ke koʻikoʻi o ka ʻōpala vulcanized i ka ZDA-filled HXNBR rubber compound i ka ikaika hoʻohui maikaʻi loa a me ka nui o nā waiwai mechanical hope loa (ke kaumaha a me ka elongation i ka wā hoʻomaha) i hoʻemi ʻia me ka piʻi ʻana o ka mahana no nā mea paʻa a pau. ʻO ka pilina ikaika ma waena o ka ʻili hoʻopiha a me ka matrix polymer e hoʻonui i ka hopena o ka mahana ma ka hoʻoikaika ʻana i nā waiwai. ʻOiai ua hoʻonui ka pilina ionic ma waena o ZDA a me HXNBR carboxyl i ke koʻikoʻi o ka haʻihaʻi, ʻaʻohe hopena o kēia mau pilina ionic i ka hilinaʻi ʻana o ka wela o ke koʻikoʻi haʻihaʻi. Hōʻike kēia i nā pilina ionic mechanically stable ma waena o ZDA a me ka functionalized polymer matrix (HXNBR) he mea e pono ai no ka maikaʻi mechanical a me ka hoʻoikaika mechanical waiwai o ka mea hao me ka haʻahaʻa haʻahaʻa haʻahaʻa hysteresis ma lalo o nā kūlana deformation ikaika.
