He aha te pahuka polyurethane pūtau-kati?
Ko te pahuka polyurethane pūtau kati he momo rauemi whakamahana wera tino pai, he mea penapena hiko, he ātete hoki ki te makuku, nō reira he whānuitia te whakamahinga i roto i ngā momo ahumahi. He pūwero piripono tēnei pahuka, ā, kua whakakiia ki ngā hau whakamahana (e kiia ana ko ngā mea pupuhi) hei āwhina i te pupuri i te wera ki roto i ngā pūwero. Ka whakapai ake te hanganga pūtau kati i te mahi wera, ā, he kōwhiringa pai rawa atu mō ngā tono whakamahana wera penapena hiko.
Ko tētahi o ngā painga matua o te pahuka polyurethane pūtau-katia ko tōna matotoru nui, e tino ātete ana ki te wai. Nā tēnei matotoru ka waiho hei ārai makuku whai hua, he mea nui mō ngā wāhi mākū pērā i ngā rūma tuanui, ngā wāhi ngokingoki, me ngā rūma raro. Nā te mea ka hanga e te pahuka pūtau-katia he hiri ā-hau, ka whakaitihia te tūponotanga o te urunga makuku, ā, ka whakaitihia te tipu o te harore, ka whakapai ake i te kounga o te hau o roto, ā, ka whai wāhi ki te taiao noho hauora.
Ngā Wāhi Whakamahinga mō ngā Whakakōkī Polyurethane i roto i te Pahuka Pūtau-Katia
He mea nui te mahi a ngā whakakorikori polyurethane i roto i te hanga pahuka pūtau-katia mā te whakahaere i ngā tauhohenga matū e whakaputa ana i ngā āhuatanga ahurei o ngā pahuka. Ka āwhina ngā whakakorikori pēnei i te MXC-C15 me te MXC-37 ki te whakatutuki i ngā āhuatanga mahi motuhake e āhei ai te whakamahi i ngā pahuka pūtau-katia i roto i te hanganga me te whakamahana.
MXC-C15Ko te (3,3′ -iminobis (N, n-dimethylpropylamine), nama CAS 6711-48-4, he matūriki amine iti te kakara, kāore he tukunga, ā, ka taea te whiriwhiri paku mō ngā tauhohenga urea (isocyanate-wai). Ka tautoko te matūriki i te whakamaroke maeneene i roto i ngā pūnaha polyurethane pakari, ā, he whiringa whānui mō ngā tono e hiahia ana ki ngā āhuatanga whakamaroke pumau me te ahunga whakamua. He pai ōna āhuatanga mō te whakamahi i roto i ngā pahuka pūtau kati mō te whakamarumaru tuanui, ngā pūnaha pakitara me ētahi atu wāhi e tino nui ana te pakari me te ātete ki te makuku.
MXC-37Ko te (2-(2-(dimethylamino)ethoxy)ethanol, CAS Nama 1704-62-7), e mōhiotia ana ko DMAEE, he matū whakakorikori amine maha-whakamahinga, he iti te tukunga me te kaha whakakorikori teitei. Nā tōna whai huatanga i roto i ngā whakatakotoranga he nui te ihirangi wai, he tino pai te MXC-37 mō te hanga i ngā pahuka rehu iti-kiato, pupuhi-wai. Ka whakaitihia e tēnei matū whakakorikori te kakara amine noa e kitea ana i roto i ngā pahuka, ā, ka whakarei ake i te hanganga o te pahuka, ka whai hua ai i roto i ngā tono haunga iti. Ko tōna whakamahinga whānui ko ngā pahuka ngohengohe, ngā elastomers, me te pahuka pakari mō te takai, e āwhina ana ki te whakatutuki i te ōritetanga me te kaha i roto i ngā hua e hiahia ana ki te whakawhānui me te pumau tika.
Ngā Painga o te Huka Pūtau-Katia me ngā Whakakōkī Polyurethane
He pai te ātete o te pahuka polyurethane pūtau-kati ki te wera me te makuku, ā, ko ngā whakakorikori pēnei i te MXC-C15 me te MXC-37 e tautoko ana i tana whakaputanga whai hua me te mahi pumau. Mā ēnei āhuatanga katoa ka waiho te pahuka pūtau-kati hei whiringa i roto i ngā taiao e hiahiatia ana te mahi wera pono me te roa o te mau.
Wā tuku: Whiringa-ā-rangi-05-2024