He whānuitia te whakamahinga o te pahuka polyurethane i roto i ngā ahumahi maha nā tōna maha o ngā mahi, ōna āhuatanga ārai me ōna āhuatanga hanganga. Ka rerekē ngā āhuatanga o ngā pahuka i runga i te hanganga pūtau, ka taea te wehewehe ki ngā pahuka pūtau tuwhera, ki ngā pahuka pūtau kati rānei. He mea nui te whiriwhiri i ngā whakakorikori e whakamahia ana i roto i te hanga pahuka polyurethane ki te whakatau i ngā āhuatanga o te pahuka, tae atu ki tōna mātotoru, tōna ngāwari, me tōna kakara. I roto i tēnei tuhinga, ka tūhuratia e mātou ngā rerekētanga i waenga i ngā pahuka pūtau tuwhera me ngā pahuka pūtau kati, ā, ka tirohia me pēhea te whakamahi i ngā whakakorikori polyurethane motuhake pēnei i te MXC-T me te MXC-37 i roto i te hanga.
Te Mārama ki ngā Huka Pūtau-Tuwhera me ngā Huka Pūtau-Katia
Huka Pūtau-Tuwhera
Ko te āhua o te pahuka pūtau-tuwhera ko ngā pūtau pahuka e hono ana tetahi ki tetahi hei hanga i te kakano hautai. Ko te tikanga he māmā ake tēnei pahuka, he ngāwari ake, he pūwero ake, ka hua ake he pai te mimiti oro me ngā āhuatanga ārai oro. Ko te pahuka pūtau-tuwhera e whakamahia whānuitia ana i roto i ngā mahi e hiahia ana ki te urunga, pērā i ngā tāonga, ngā nohoanga motuka, me te ārai oro. Ko ōna āhuatanga matua ko te iti o te kiato, te ngāwari nui, te mahi ārai oro me te wera pai, me te pai o te uruhanga hau.
Huka Pūtau-Katia
He rerekē, he piripono, he hiri hoki te hanganga o te pahuka pūtau-katia, e ārai ana i te rere o te hau, o te wai rānei. He kikī ake te pahuka, he pakari ake, ā, he pai ake te ārai i te makuku. He pai te pahuka pūtau-katia mō ngā tono e hiahia ana kia roa te mau me te ātete ki te wai, pērā i te ārai whare, te pahuka rehu mō ngā whare penapena pūngao, me ngā papaaho motuka. Ko ōna āhuatanga matua ko te kiato teitei ake, te pakari ake, ngā āhuatanga ārai pai rawa atu (te ārai wera, te ātete makuku), te ātete wai me te roa.
Te Tūranga o ngā Kaikōkiri Polyurethane i roto i te Hanga Pahuka
He mea nui te mahi a ngā whakakorikori polyurethane i roto i te hanga pahuka mā te whakahaere i te tauhohenga matū i waenga i ngā polyol (nō ngā puna tipu, hinu rānei) me ngā isocyanate hei hanga polyurethane. I runga i ngā āhuatanga pahuka e hiahiatia ana, pērā i te mātotoru, te ngāwari, me te kakara, ka whakamahia ngā whakakorikori rerekē.
He painga motuhake ō ngā kaiwhakakōkī pērā i te MXC-T me te MXC-37 mō te hanga pahuka pūtau-tuwhera me te pūtau-kati. Me titiro tata atu tātou ki ngā wāhi tono me ngā painga o ēnei kaiwhakakōkī e rua.
MXC-T (CAS 2212-32-0)i roto i te Hanga Pahuka
Ko te MXC-T, e mōhiotia ana ko TMAEA, he whakakorikori amine whai hua, kāore he tukunga e whakarato ana i tētahi kōpiko tauhohenga maeneene, ā, he whānuitanga hoki mō te whakaputa i te whānuitanga o ngā pahuka polyurethane. Mā te kōpiko tauhohenga maeneene ka taea te whakawhānui ake i te pahuka, he mea nui tēnei hei whakarite i te ōritetanga o te kounga me te mahi pahuka.
Te tono i roto i ngā pahuka pūtau-tuwhera me ngā pahuka pūtau-kati
He tino whai hua te MXC-T i ngā tono e hiahia ana kia iti ngā kakara toenga me te mahi whakaterenga whai hua. Ko tōna mahi whakaterenga ka whakatairanga i te tauhohenga i waenga i te urea (wai-isocyanate), e tauhohe ana ki te matrix polymer nā tōna rōpū hydroxyl hohe. Koinei te take e whakamahia whānuitia ai te MXC-T i roto i:
- Whakamarumarutanga Pahuka RehuMā te MXC-T ka rite te hanganga o te pahuka whakamahana me te iti o te haunga, he mea tino pai mō ngā tono whakamahana whare noho me te arumoni.
- Papatohu WakaNā te iti o te kakara me te maeneene o te pihi tauhohenga o MXC-T, he mea pai tēnei mō ngā whakamahinga pahuka motuka, pērā i ngā papaaho me ētahi atu wāhanga o roto.
MXC-37 (CAS 1704-62-7)i roto i te Hanga Pahuka
Ko te MXC-37, DMAEE rānei, he kaitahuri amine kore-tukunga, he iti te kakara, he nui te mahi pahuka. He tino pai mō ngā hanganga e hiahia ana ki te nui o te wai, ā, he maha ngā wā e whakamahia ana i roto i te hanga pahuka polyurethane rehu wai-pahuka iti-kiato (SPF). He tino pai tēnei kaitahuri mō te hanga pahuka he tino pupū, he hanganga pūtau ōrite, e whai hua ana i roto i ngā tono maha e hiahiatia ana aua āhuatanga.
Te tono i roto i ngā pahuka pūtau-tuwhera me ngā pahuka pūtau-kati
E mōhiotia ana te MXC-37 mō tōna kaha ki te whakaiti i te haunga amine noa i roto i ngā pahuka polyurethane, ā, he whiringa whānui tēnei mō ngā taiao tairongo pēnei i:
- Pahuka Rehu Matotoru-Iti (SPF)E whakamahia whānuitia ana te MXC-37 i roto i ngā tono pahuka rehu iti-kiato, ina nui te wai, ā, he mea nui te iti o te haunga. Kei roto i tēnei ko ngā tono i roto i te whakamahana, te tuanui, me ngā pūnaha pakitara.
- Huka Pūtau-iti: Ka taea te whakamahi i te MXC-37 hei whakaputa pahuka pūtau-iti, e whakamahia ana i roto i ngā takai, i ngā wāhanga motuka me ētahi atu tono e hiahia ana ki ngā pahuka māmā, ngāwari, tae atu ki ngā pahuka ngohengohe me ngā elastomers ina ko te ngāwari me te pakari ngā whakaritenga matua.
- Tākai Pahuka MārōI roto i ngā mahi tākai, inā koa ngā wāhi e hiahiatia ana he mama me ngā āhuatanga whakamarumaru, he whai hua te MXC-37 ki te whakahaere i te kiato o te pahuka me te whakarei ake i te hanganga o te pahuka.
Ka taea te whakamahi i te MXC-37 hei whakakorikori matua, hei whakakorikori tahi rānei, inā koa ka honoa ki ētahi atu whakakorikori pēnei i te BDMAEE, hei whakapai ake i te kounga o te pahuka me te whakaiti i te hiahia mō ngā nui ake o ētahi atu whakakorikori.
Whakamutunga
Ngā whakakorikori polyurethaneHe mea nui ngā matū pēnei i te MXC-T me te MXC-37 mō te hanga pahuka pūtau tuwhera me te kati, hei āwhina i ngā kaihanga ki te whakatutuki i ngā āhuatanga pahuka e hiahiatia ana me te whakaiti i ngā hua kino pēnei i ngā haunga me ngā tukunga. Mā te whiriwhiri i te whakakorikori tika mō tētahi momo pahuka motuhake, ka taea e ngā kaihanga te whakapai ake i te mahi me te pumau o ā rātou hua.
Wā tuku: Hakihea-10-2024