Me ka hoʻomohala ʻana o ka ʻenehana hou, ua piʻi ka hana o ka nylon 6 i ka pae o nā ʻenehana kiʻekiʻe-hou nui.Wahi a ka hoʻohana ʻokoʻa, hiki ke hoʻokaʻawale ʻia ke kaʻina hana polymerization o ka nylon 6 i nā mea aʻe.
1. ʻElua mau ʻano polymerization
Hoʻokumu ʻia kēia ʻano hana i nā ʻano polymerization ʻelua, ʻo ia hoʻi ka pre-polymerization a me nā ʻano post-polymerization, ka mea maʻamau i hoʻohana ʻia i ka hana ʻana i nā lole kaula ʻoihana me ka viscosity kiʻekiʻe.Hoʻokaʻawale ʻia nā ʻano hana polymerization ʻelua i ka pre-polymerization pressurization a me ka post-polymerization decompression.I ke kaʻina hana, hoʻokō ʻia ka pressurization a i ʻole decompression e like me ka hoʻohālikelike o ka manawa polymerization, kēlā me kēia i ka huahana a me ka haʻahaʻa-poly volume.Ma keʻano laulā, ʻoi aku ka maikaʻi o ke ʻano decompression post-polymerization, akā pono ia i ka hoʻopukapuka hou aʻe, a me ke kumukūʻai kiʻekiʻe, ukali ʻia e ke kiʻekiʻe kiʻekiʻe a me ke kaomi maʻamau e pili ana i ke kumukūʻai.Eia naʻe, ʻoi aku ka haʻahaʻa o ke kumukūʻai hana o kēia ʻano hana.I ka pre-polymerization pressurization a me ka post-polymerization decompression hana hana, i ka wā o ka pressurization, ua hui pū ʻia nā mea hana o ka hana a laila hoʻokomo ʻia i loko o ka reactor, a laila lawe ʻia ka hopena o ka wai-wehe a me ka ʻāpana polymerization. ma kahi mahana kiko'ī.ʻO ke kaʻina hana he hopena endothermic.Aia ka wela ma ka ʻaoʻao o luna o ka paipu polymer.I loko o ke kaʻina hana pressurization, noho ka polymer i loko o ka polymer tube no kekahi manawa a laila komo i loko o ka polymerizer, kahi e hiki ai i ka viscosity o ka polymer i hana ʻia ma kahi o 1.7.
2. Keʻano polymerization mau ma ke kaomi maʻamau
Hoʻohana ʻia kēia ʻano hana no ka hana ʻana i ka lipine home o ka nylon 6. Nā hiʻohiʻona: Hoʻohana ʻia ka polymerization hoʻomau nui me ka mahana a hiki i 260 ℃ a me ka manawa polymerization no 20 mau hola.Loaʻa ke koena oligomer ma ka ʻāpana ke kū ka wai wela i ke au.Hoʻohana pū ʻia ka mana o ka ʻōnaehana hoʻolaha DCS a me ka hoʻomaloʻo ʻana i ka ea ammonia.Hoʻohana ke kaʻina hana o ka hoʻihoʻi monomer i nā ʻenehana o ka hoʻomau ʻana i ʻekolu hopena evaporation a me ka neʻe ʻana a me ka discontinuous distillation a me ka neʻe ʻana o ka wai i unuhi ʻia.Nā pōmaikaʻi o ke ʻano: ʻO ka hoʻomau mau ʻana o ka hana, kiʻekiʻe kiʻekiʻe, kiʻekiʻe huahana huahana, wahi liʻiliʻi i noho ʻia i ke kaʻina hana.ʻO ke ala he ʻenehana maʻamau i ka hana ʻana i ka lipine kūloko o kēia manawa.
3. ʻO ke ʻano polymerization autoclave ʻano intermittent
Hoʻohana nui ʻia ia i ka hana ʻana i nā plastic engineering liʻiliʻi.ʻO ka pālākiō hana he 10 a 12t / d;ʻO ka hoʻopuka o kahi autoclave hoʻokahi he 2t / batch.Ma keʻano laulā,ʻo ke kaomi i ka hana hana he 0.7 i ka 0.8mpa, a hiki i ka viscosity ke hiki i 4.0, a me 3.8 i ka manawa maʻamau.ʻO ia no ka mea inā kiʻekiʻe loa ka viscosity, e haʻahaʻa loa ka puka.Hiki ke ho'ohana 'ia no ka hana 'ana i ka pa 6 a i 'ole ka pa 66. He hana ma'alahi ka hana, ma'alahi ke ho'ololi i nā 'ano like 'ole a ma'alahi no ka hana.
Ka manawa hoʻouna: Feb-21-2022