He aha te Whakakōkī Whakarewa?
A whakakorikori whakarewahe matū kei roto ngā ngota whakarewa e whakahaere ana i ngā tauhohenga matū me te kore e pau i roto i te tukanga. I roto i te hanga polyurethane, ka tere ake ngā tauhohenga matua o ngā whakakorikori whakarewa pērā i te hanganga o te urethane (tauhohenga polyol-isocyanate) me te urea (tauhohenga wai-isocyanate). Ka whakapai ake ngā whakakorikori whakarewa i te whai huatanga, ka whakaiti i te wā whakaputa, ā, ka whakarite i ngā āhuatanga ā-tinana me te matū e hiahiatia ana o te pahuka polyurethane.
Te Whakarōpūtanga o ngā Whakakōkī Konganuku
Ka whakarōpūtia whānuitia ngā whakakōkī whakarewa i runga i te hanganga matū, te mahi, me te momo whakarewa motuhake. Kei raro nei ngā whakarōpūtanga matua:
1. Ngā Whakakōkī i te Tin
Tauira: MXC-T12(DBTDL)Dibutyltin dilaurate, Tin octoate.
Ngā tonoE whakamahia whānuitia ana i roto i ngā pahuka polyurethane, ngā paninga, ngā piripiri, me ngā hiri.
Ngā ĀhuatangaHe nui te kaha whakaterenga mō te tauhohenga polyol-isocyanate. He maha ngā wā e pā ana ki ngā āwangawanga taiao me te paitini.
2. Ngā Whakakōkī e Hangai ana ki te Bismuth
Tauira: MXC-B20 (Whakakōkī karboksilate Bismuth).
Ngā tonoHe huarahi kē atu ki ngā whakakorikori tine i roto i ngā pahuka mārō, ngāwari hoki.
Ngā ĀhuatangaKāore he paitini, he hoa hoki ki te taiao. He whai hua mō ngā tono e hiahia ana kia iti te haunga me te iti o ngā tukunga. Ka whakatairanga i te whakamaroke pai rawa atu me te whakaroa i te hanga matotoru.
3. Ngā Whakakōkī e Hangai ana ki te Konutea
TauiraKonutea neodecanoate.
Ngā tonoNgā pahuka ngāwari, ngā elastomers, me ngā paninga.
Ngā ĀhuatangaHe iti te utu, ā, he ngawari te ngohe whakakorikori. He mea whakamahi noa i roto i ngā whakatakotoranga e hiahiatia ana te whiriwhiringa teitei.
4. Ngā Whakakōkī e Hangai ana ki te Titanium
TauiraNgā waikura konukōhatu.
Ngā tonoNgā paninga, ngā hiri, me ngā piripiri.
Ngā ĀhuatangaHe kaha te mahi whakatere mō ngā tauhohenga motuhake. Kāore i te tino kitea i roto i te pahuka polyurethane nā te utu nui.
5. Ngā Whakakōkī Bismuth-Tin, ngā Whakakōkī Whakaranu-Metara rānei
TauiraNgā huinga o ngā whakakōkī bismuth me te tine.
Ngā tonoHei whakataurite i te mahi me te utu, me te whakaiti hoki i te paitini.
Ngā ĀhuatangaNgā pānga mahi tahi hei whakarei ake i ngā kōtaha tauhohenga motuhake.
6. Ētahi atu Whakakōkī Konganuku
Ngā tauiraNgā whakakorikori konumohe, kobalta, konupora, rino rānei.
Ngā tonoNgā tono motuhake mō ngā paninga, ngā elastomer rānei.
Ngā ĀhuatangaWhakaratohia ngā painga ahurei pēnei i te pumau o te pāmahana teitei, te whiriwhiringa tauhohenga motuhake rānei.
MXC-B20: Kaikōkiri Bismuth Carboxylate hei Whakakapinga i te Tin
Ko te MXC-B20 hewhakakorikori konukōre bismuthi hangaia hei huarahi pai mō te taiao hei whakakapi i ngā whakakorikori tine tuku iho. E whakamahia ana i roto i ngā pahuka polyurethane hei whakatairanga i:
- Te Whakatipuranga o te Matotoru
ka pai ake te whakahaere i te huka i ngā wāhanga tuatahi o te hanganga. - Te Whakaora i te Pito Whakamuri kua Whakapai akeKa whakarite i ngā āhuatanga whakamutunga pakari me te kore e whakararu i te pumau o te tukatuka.
- Te Aroha ki te TaiaoKore rawa he mercury, he mata, he tine rānei, e hangai ana ki ngā ture taiao pakari ake.
- Ngā momo mahi:Hototahi ki ngā polyol mārō me ngā polyol ngohengohe, e āhei ai te whakamahi i roto i ngā pahuka mārō, ngā pahuka kiato-nui, me ngā pūnaha moroiti.
Ngā Painga o ngā Whakakōkī Bismuth ki ngā Whakakōkī Tin
He iti ake te paitini me te pānga ki te taiao. He iti ake te kakara me ngā tukunga i roto i te hua whakamutunga. He tino pumau i roto i ngā hanganga wai.
Hei whakamutunga, he mea nui ngā whakakorikori whakarewa pēnei i te MXC-B20 ki te whakatairanga i te hanga polyurethane pumau me te mahi teitei mā te tuku huarahi kē atu i ngā pūnaha tine tuku iho.
Wā tuku: Whiringa-ā-rangi 26-2024