Ko te nuinga o tēnei tuhinga e whiriwhiri ana i te MMA, BA, AA hei monomer, ā, e matapakihia ana ngā āhuatanga o te whakapūhuitanga o te whakapiripiri me ēnei mea, pērā i te raupapa tāpiri, te nui o te tāpiri me te pāmahana tauhohenga o te kaiwhakaoho me ia monomer, ā, e kitea ana ngā āhuatanga pai rawa atu o te tukanga whakapūhuitanga o te whakapiripiri. Ka mimitihia te rapa i te tuatahi, kātahi ka whakaohokia, ka whakarewahia ki te whakarewa whakauru i te 70~80°C, kātahi ka tāpirihia te kaiwhakaoho BPO i roto i ngā puranga. Ka tāpirihia te monomer tuatahi MMA kua whakarewahia ki te BOP i te 80~90°C mō te 20 meneti, kātahi ka tāpirihia ki te monomer tuarua o te BPO, i muri i ētahi atu 20 meneti, tāpirihia te monomer tuatoru i te 84~88 ℃ ka whakaohokia mō te 45 meneti, kia mahana mō te 1.5~2 hāora, kātahi ka whiwhi i te piri whakapūhuitanga o te whakapiripiri CR/MMA-BA-AA e toru-ara. Ko te kaha kiri he nui ake i te CR/MMA-BA, ko tōna uara he 6.6 KN.m-1.
Ngā Kupu Matua: Piripiri Neoprene, Piripiri Hu, Piripiri Neoprene Kua Tāpirihia ki te Maha-wāhanga.
Etera celluloseMCmeHPMChe pai te mahi marara, te whakaemulsification, te matotoru, te piri, te hanganga kiriata, te pupuri wai, ā, he pai hoki te wairewatanga wai, te mahi mata, te pumau, me te whakarewatanga i roto i ngā whakarewa waro.
Ko ngā hua matua e whakawhanakehia ana i tēnei wā ko ngā momo RT raupapa MC me HPMC, ko ō rātou momo ko 50RT (Methylcellulose), 60RT (Hydroxypropylmethylcellulose), 65RT (Hydroxypropylmethylcellulose), 75RT (Hydroxypropylmethylcellulose), ā, ko ngā momo e rite ana ki ngā momo o te Kamupene Kemihana a DOW ko Methocel A, E, F me K.
He tino whai hua ngā hua raupapa RT hei tāpiri i roto i ngā rauemi hanga nā te mea he piripono, he pumau te whakatārewatanga me te pupuri wai. Hei tauira, ka taea te hanga hei "piripiri pakitara me te papa pereki uku" kounga teitei, e mōhiotia whānuitia ana ko te paura rapa, kua whakamahia i te Teihana Tereina o te Uru o Beijing, he pai te pānga. Hei tāpiri, ka taea te whakamahi hei irahiko i roto i ngā pūnga hiko me ngā whatunga irahiko i honoa i roto i ngā taputapu hiko, hei atropine, aminopyrine me ngā tioata anal i roto i ngā rongoā, hei whakamātotoru hoki mō ngā wairewa wai i roto i ngā peita. I roto i te peita rapa me te peita wairewa-wai, ka taea te whakamahi hei kaihanga kiriata, hei whakamātotoru, hei emulsifier me te whakaū, me ētahi atu mō te piri pepapātū, te paura rapa whakamakuku wai, me ētahi atu.
Ngā Kupu Matua: Methyl Cellulose, Hydroxy Propyl Cellulose, piripiri, tono.
Te whakawhanaketanga o te kāpia ringaringa pepa kirihou wai
I ngā tau tata nei, kua whakawhanakehia he tukanga hou mō te whakapiri i te kiriata kirihou ki runga i ngā mea tā. He BOPP (kiriata polypropylene oriented biaxially) kua pania ki te piripiri, kātahi ka honoa ki ngā mea tā i muri i te pēhitanga e te rango rapa me te roera whakamahana hei hanga pepa. / Tānga kirihou 3-i roto-i te-1. Kei roto i tēnei ko te raruraru o te hononga pepa me te kirihou. He rauemi kore-porowhita te BOPP, nō reira, me whai piripiri he pai te piri ki ngā matū porowhita me ngā matū kore-porowhita.
He pai te hototahitanga o te whakaranu i te piri SBS me te kapia epoxy. He viscose elastomer te SBS. Ka kitea mai i tōna pihi pakaru, kia pai ai te kaha whakangaro piri o te viscose, me whakahaere i te taha o te SBS: kapia epoxy = 2:1. Mai i te pihi kaha kiri, ka kitea ina teitei te ōwehenga, ka nui te kaha kiri, engari ka piki ake hoki te piri. Hei karo i te piri, ka taea te whakahaere i te SBS: kapia epoxy = 1:1~2.5:1 kia puta ai he kaha kiri e piki haere ana. Mā te whakaaro whānui, whakatauhia te SBS i roto i te piri matua: kapia epoxy = 1:1~3.5:1.
Ko te mahi matua o te whakamahi i te kapia whakapiripiri he whakanui ake i te kaha o te hononga o te matrix me te whakapai ake i te makuku o te kāpia me te mata hononga. Ko te kapia whakapiripiri i whakamahia i roto i tēnei rangahau he kapia whakapiripiri rosin i hangaia mai i te rosin noa me te rosin kua whakawhāitihia i roto i ngā ōwehenga rerekē. Mā te maha o ngā whakamātautau, i whakatauhia ko te ōrau o te rosin kua whakawhāitihia i roto i te kapia whakapiripiri he 22.5%, ā, ko te kaha tihore o te kāpia i whakaritea kia rite ki tēnei ōwehenga he 1.59N/25mm (pepa-kirihou).
He pānga tō te nui o te mea whakapiripiri ki ngā āhuatanga o te piri. Ko te pānga pai rawa atu ko te ōwehenga o te kāpia matua me te mea whakapiripiri he 1:1. Ko te kaha kiri N/mm kirihou-kirihou 1.4, pepa-kirihou 1.6.
I roto i tēnei rangahau, i whakamahia te MMA hei waiwhakarewa hei whakaranu i te SBS me te MMA. Kua kitea i roto i ngā whakamātautau, mā te whakamahi i te MMA, ehara i te mea ka taea anake te pokepoke i ngā wāhanga o te kōrori, engari ka taea hoki te whakaiti i te matotoru me te whakapai ake i te kaha o te piri. Nō reira, he waiwhakarewa whakarerekētanga pai te MMA. Whai muri i ngā whakamātautau, ko te nui o te MMA e whakamahia ana ko te nui katoa o te kāpia 5% ~ 10% te mea e tika ana.
I te mea me wairewa te viscose kua hangaia ki te wai, ka whiriwhiria e mātou te rapa mā (te whakapūhui polyvinyl acetate) hei kaikawe wairewa. Ko te nui o te rapa mā e 60% o te viscose katoa. I muri i te whakapūhuitanga o te viscose wai-wai ki te āhua whakapūhuitanga wai mā te marara me te whakapūhuitanga o te kaikawe whakapūhuitanga, ki te kore e pai te whakamahi i tōna matotoru kua whakapūhuitia, ka taea te whakapūhuitia ki te wai. He iti te utu o tēnei tikanga whakapūhuitanga, ā, kāore he paitini (kāore e hiahiatia he whakarewa waro), ā, ko te whānuitanga pai rawa atu o te wai whakapūhuitanga ko te 10%~20%.
Hei tango i te toenga o te viscose, ka whakamatautauria kia whakamahia te otinga Na2CO3 waimeha hei kaiārahi, ā, ko te hua pai rawa atu. Ko te ariā o te hua o te kaiārahi pea ko te tauhohenga saponification ka whakaurua mai ētahi iona polar kaha, pērā i ngā iona konutai, kia huri ai te waikawa rosin taketake kore-rewa hei tote konutai waimeha. Hei tāpiri, ki te nui rawa te turanga kaha e tāpirihia ana ki te kāpia, ka ngaro te kaha o te piri, kia kore ai te kāpia e pai, kia kore ai te kāpia e pai mō te taiao kawakore.
Te rere o te tukanga e tika ana.
Wā tuku: Paenga-whāwhā-25-2024