He rauemi maha ngā mahi a ngā elastomer polyurethane, ā, he tino pai ngā āhuatanga miihini pērā i te ngāwari, te ātete ki te kakahu, me te roa. Nā ēnei āhuatanga ka pai mō ngā momo mahi ahumahi, tae atu ki ngā wāhanga motuka, ngā hu, ngā hiri me ngā paninga. Ko te hanga i ngā elastomer polyurethane me whakahaere tika i ngā tauhohenga matū e whai wāhi ana, inā koa i te wā e hanga ana i te here urethane i waenga i te polyol me te isocyanate. He mahi nui tā ngā whakakorikori polyurethane i konei.
Ngā whakakorikori polyurethaneka taea te whakahaere i te tere me te whai huatanga o te tauhohenga polyurethane. Ka awe rātou i te taurite i waenga i ngā tauhohenga gelation (polyol-isocyanate) me te huka (wai-isocyanate), e whakatau tika ana i ngā āhuatanga whakamutunga o te elastomer. Mā te whiriwhiri i te whakakorikori tika, ka taea e ngā kaihanga te arotau i ngā āhuatanga tukatuka me te whakarite i ngā āhuatanga ā-tinana o te elastomer kia tutuki ai ngā whakaritenga tono motuhake.
Ko tētahi o ngā matū whakakorikori matua e whakamahia ana i roto i te hanga o ngā elastomers polyurethane ko te MXC-37, e mōhiotia ana ko te dimethylethanolamine ether (DMAEE).MXC-37 He iti te tukunga o te matū amine, he iti hoki te kakara, e whakamahia whānuitia ana i roto i ngā tono e hiahia ana kia iti rawa ngā tukunga amine me te mahi teitei. Nā ngā āhuatanga ahurei o te MXC-37 e tino pai ai mō te pahuka ngohengohe whakaū e hangai ana ki te ester, te pahuka moroiti, ngā elastomers, te hanga werohanga tauhohenga (RIM) me ngā tono takai pahuka pakari.
MXC-37i roto i ngā Elastomers Polyurethane
MXC-37He maha ngā painga o tēnei matū i roto i te hanga i ngā elastomers polyurethane. He matū whakakorikori kaha e whakarei ake ana i te tukanga pahuka, ā, he tino pai mō ngā whakatakotoranga he nui te wai. Ko tōna kaha pahuka teitei e whakatairanga ana i te hanganga mirumiru whai hua me te hanganga pūtau ōrite, he mea nui tēnei mō ngā tono pēnei i ngā pahuka pūtau iti me ngā elastomers.
I roto i ngā tono elastomer, ka whakarite a MXC-37 i te tere me te ōrite o te whakamaroke, e whakapai ake ana i ngā āhuatanga ā-pūkaha o te elastomer, pērā i te kaha kume me te ngāwari ake. Nā tēnei ka waiho hei whiringa rongonui mō te hanga i ngā wāhanga elastomer pakari e hiahia ana ki te ngāwari teitei, pērā i ngā hiri, ngā gasket me ngā wāhanga motuka.
Hei tāpiritanga, ko te iti o te haunga me te kore tukunga o te MXC-37 he painga nui anō hoki, inā koa i roto i ngā tono e pāngia ana e te haunga. Ka whakaitihia te haunga amine e pā ana ki ngā whakakorikori polyurethane ina whakamahia te MXC-37, ā, he pai mō ngā hua e pā tika ana ki ngā kaihoko, pērā i ngā hu me ngā rauemi whakaruruhau.
Ngā Taupānga Maha
Kāore te MXC-37 e herea noa ki ngā elastomer, engari ka horapa atu ki ētahi atu pūnaha pahuka polyurethane. I roto i ngā whakamahinga pahuka pūtau-iti, ka āwhina i te whakaputa pahuka me ngā pūwero angiangi me te ōrite, e whakarei ake ana i te mimiti ru me ngā āhuatanga whakangāwari o te rauemi. I roto i te whakahāngai werohanga tauhohenga (RIM), ka āwhina a MXC-37 ki te whakahāngai tere i ngā wāhanga uaua, te whakanui ake i te hua, me te whakaputa wāhanga mama, mahi-teitei mō ngā whakamahinga motuka me ngā mahi ahumahi.
Hei tāpiritanga, ka taea te whakamahi i te MXC-37 i roto i ngā tono takai pahuka pakari, i reira ka whakarite tōna kaha pahuka teitei i te whakamarumaru me te tiaki pai. He pai hoki ēnei tono nā te iti o te haunga me ngā āhuatanga kore tukunga o te whakakorikori, ka whakaiti i te pānga ki te taiao me te whakapai ake i ngā āhuatanga o te wāhi mahi.
Whakamutunga
Hei whakamutunga, ko ngā whakakorikori polyurethane pēnei i teMXC-37 (DMAEE)he wāhanga nui ēnei i roto i te hanga o ngā elastomers polyurethane me ētahi atu pūnaha pahuka. Nā tō rātou kaha ki te whakahaere i ngā tere tauhohenga, te whakapai ake i te kounga o te pahuka, me te whakaiti i ngā tukunga haunga, he mea nui ēnei i roto i te whānuitanga o ngā tono ahumahi. Ko te MXC-37, me tōna kaha pahuka teitei me ōna āhuatanga tukunga iti, e tuku ana i tētahi otinga pono ki ngā kaihanga mō te hanga hua polyurethane mahi teitei, mai i ngā elastomers ki ngā pahuka moroiti me te takai pahuka pakari.
Wā tuku: Hakihea-24-2024