He elastomer te polymer Carboxyl-terminated butadiene nitrile (CTBN) he ātete pai ki ngā miihini, ki te wera me te matū. Nā ēnei āhuatanga ahurei ka whakamahia whānuitia te CTBN i roto i ngā ahumahi maha. I roto i tēnei tuhinga, ka tūhuratia e mātou he aha te carboxyl-terminated butadiene nitrile me ōna tono i roto i ngā mara rerekē.
Nitrile butadiene kua whakamutua ki te carboxylHe copolymer tēnei o te butadiene me te acrylonitrile e pāngia ana e te tukanga carboxylation i te wā o te tukanga hanga. Mā tēnei tukanga ka whakaurua ngā rōpū mahi carboxyl ki roto i te mekameka polymer, ka whakarei ake i ōna āhuatanga ngāwari. He taumaha ngota teitei te copolymer hua, he iti te taupū polydispersity, ā, he pai te wairewa i roto i ngā whakarewa waro.
E mōhiotia ana ngā pūhui nitrile butadiene carboxyl-terminated mō tō rātou ātete pai ki te wera, ki te hinu, ki ngā wahie, ki ngā wai waipēhi me te maha atu o ngā matū. Nā tōna kaha ki te tu atu i ngā pāmahana tino kino mai i te -40°C ki te 150°C, me tōna ātete pai ki te ozone me te huarere, he mea tino pai mō ngā tono uaua.
Ko tētahi o ngā whakamahinga nui o te carboxyl-terminated butadiene nitrile kei roto i te umanga rererangi. He mea whakamahi noa hei matū whakapakeke mō ngā kapia epoxy e whakamahia ana i roto i te hanga hanganga hiato rererangi. Ko te tāpiri o CTBN Ka whakapai ake i te ātete pānga, te pakari pakaru me te roa o te mau o ēnei rauemi honohono. Nā te pumau o te wera ka taea te pupuri i ōna āhuatanga miihini ahakoa i ngā teitei teitei me te wā o ngā huringa pāmahana tere.
Ko tētahi atu whakamahinga nui o te carboxyl-terminated butadiene nitrile kei roto i te umanga motuka. He mea whakamahi noa te CTBN hei wāhanga matua i roto i ngā paninga, ngā piripiri me ngā hiri mō ngā wāhanga motuka. Nā tōna ātete pai ki te hinu, te wahie me te matū, me tōna ngāwari me te pakari, he mea tino pai mō ngā gaskets, O-rings, hiri me ngā diaphragms. Ka āwhina i te whakarite kia tika te mahi me te roa o te ora o ngā wāhanga i roto i ngā miihini, ngā tuku me ngā pūnaha waipēhi.
Ka whai hua anō hoki te umanga hiko i ngā āhuatanga ahurei o ngā nitrile butadiene carboxyl-terminated. He whānuitia te whakamahinga o tēnei elastomer i roto i te hanga i ngā rauemi whakamahana taura me te hipoki. He tino pai te ātete a ngā polymer CTBN ki te makuku, te hinu me ngā matū, tae atu ki te kaha dielectric teitei me te pumau wera. Nā ēnei āhuatanga ka waiho hei rauemi pai mō te whakarite i te haumaru me te pono o ngā pūnaha hiko.
Haunga ngā ahumahi kua whakahuatia ake nei, nitrile butadiene kua whakamutua ki te carboxyle whakamahia ana hoki i roto i te hanga peita, piripiri me ngā hiri, he tino painga tōna hototahi ki ngā momo whakarewa rauropi. E whakamahia ana hoki i roto i te hanganga o ngā matū rapa mahi-teitei, e whakarato ana i te ātete pānga me te ngāwari ake.
Hei whakarāpopototanga, he elastomer maha-mahi te carboxybutadiene nitrile, he ātete pai ki ngā miihini, ki te wera me te matū. Kua whakamātauhia tōna pono me tōna whai huatanga i roto i te whānuitanga o ngā tono i roto i te rererangi, te motuka, te hiko me ētahi atu ahumahi. I te whanaketanga o te hangarau me te tono a te umanga i ngā rauemi mahi teitei ake, kei te whanake tonu te CTBN me te whai wāhi atu ki ngā momo ahumahi, ā, he rauemi whai hua mō ngā tono maha.
Wā tuku: Oketopa-20-2023