He rauemi auaha te rauemi whakamahana pahuka rehu, he pai ōna āhuatanga wera, ā, he pai hoki ōna painga ki te penapena pūngao, nō reira he whānuitia te whakamahinga i roto i ngā whare noho, ngā whare arumoni me ngā whare ahumahi. Kei muri i te mahi pai o ngā rauemi whakamahana pahuka rehu ko te mahi matua a ngā whakakorikori polyurethane, e taea ai te whakahaere tika i ngā tauhohenga matū i te wā e hangaia ana te pahuka.
He aha te whakamahana pahuka rehu?
He rauemi ārai maha ngā mahi a te whakamahana pahuka rehu, i hangaia mā te whakakotahi i ngā wāhanga wai e rua: ngā isocyanate me ngā polyol. Ka tauhohe ēnei wāhanga i te whakaranu, ka horapa hei pahuka e whakakī ana i ngā āputa, e hiri ana i ngā kapiti, ā, e piri ana ki ngā mata rerekē. E rua ngā momo whakamahana pahuka rehu:pūtau tuwheramepūtau-katipahuka
- Pahuka pūtau-tuwherahe māmā, he ngāwari hoki, e whakarato ana i te ārai oro me te whakamahana i te kiato iti ake.
- Pahuka pūtau-katihe kikī ake, e whakarato ana i te ārai hau me te makuku pakari me te ātete wera nui ake (uara-R).
Ko te hanganga o te pahuka kounga teitei e whakawhirinaki ana ki ngā whakakorikori polyurethane, e akiaki ana, e arotau ana hoki i ngā tauhohenga i waenga i ngā wāhanga.
Te Tūranga o ngā Whakakōkī Polyurethane i roto i te Pahuka Rehu
Mā ngā whakakorikori polyurethane ka āwhina i ngā tauhohenga matua i roto i te whakamahana pahuka rehu:
- Tauhohenga PupuhiKei roto i tēnei tauhohenga te wai me ngā isocyanate hei whakaputa i te hauhā waro, e hanga ana i te hanganga pūtau o te pahuka.
- Tauhohenga WhakapūpūKo te tauhohenga i waenga i ngā isocyanates me ngā polyols ka hanga i te matrix pahuka, ka whakarato i te kaha ā-ringa.
Mā ngā kaiwhakakōkī ka puta ēnei tauhohenga i ngā tere e hiahiatia ana, ka whakataurite i te whakawhanuitanga, te whakamaroketanga, me te piri. Mā te arotau i ēnei tukanga, ka whakarei ake ngā kaiwhakakōkī i te kounga o te pahuka, te pumau hanganga, me te whai huatanga o te tono.
Ngā Momo Whakakōkī Polyurethane e Whakamahia ana i roto i te Pahu Rehu
Ngā Whakakōkī Amine:
He whakakorikori amine, pērā iMXC-TMā te MXC-A33 rānei, ka whakahaere i ngā tauhohenga pahuka me te whakapūpū. Nā tōna maha o ngā āhuatanga ka taea te whakamahi i roto i ngā pūnaha pahuka pūtau-tuwhera me ngā pūnaha pahuka pūtau-kati, ka taea ai e rātou te whakaiti i ngā wā tauhohenga me te whakapai ake i te whānui o te pahuka.
Ngā Whakakōkī Hanga-Metara:
Ngā matū pēnei iMXC-T120(DBTDL)(dibutyltin dilaurate) me teMXC-B20(whakakōkī karboksilate bismuth) e arotahi ana ki ngā tauhohenga whakamaroke me te whakapūpū. Ka whakapai ake ēnei whakakōkī i te hanganga o te pahuka me te piri ki ngā papa, inā koa i roto i ngā tono pūtau-kati.
Ngā Whakakōkī Kakara Iti:
Ngā whakakorikori iti-tukunga me te iti-kakara, pērā iMXC-37rāneiMXC-R70, kei te piki haere te whakamahinga i roto i te pahuka rehu hei whakatutuki i ngā ture taiao, hei whakapai ake hoki i te kounga o te hau o roto. He tino pai ēnei mō ngā pūnaha pupuhi wai, ā, he pai te taurite o te pahuka me te whakamaroke.
Ngā Whakakōkī Motuhake mō ngā Ākena Pupuhi HFO:
Ko ngā pahuka rehu HFO e hiahia ana ki ngā whakakorikori pumau pērā iDMDEErāneiMXC-T, e hototahi ana ki ngā kaihoko hydrofluoroolefin. Ka āwhina ēnei pūnaha ki te whakatutuki i ngā paerewa kaha o te pūmanawa whakamahana ā-ao (GWP) me te kore e whakararu i te mahi pahuka.
Ngā Painga o te Whakamahi i ngā Whakakōkī Polyurethane i roto i te Whakamarumarutanga Pahuka Rehu
- Mana Tauhohenga TikaMā ngā whakakorikori ka taea e ngā kaiwhakatakoto whakaaro te whakarite i te tere tauhohenga, kia tika ai te horapa me te whakamaroke o te pahuka.
- Te Piringa Whakarei: Ka whakapai ake ngā kaiwhakaohote piri o te pahuka ki ngā papa rerekē, he mea nui tēnei i roto i ngā mahi whakamahana.
- Te pakariKa whai wāhi ngā whakakorikori kounga teitei ki te roa o te ora me te pumau o te pahuka rehu, ka mau tonu te mahi wera i roto i te wā.
- Te Whakatutukitanga TaiaoKua hangaia ngā whakakorikori hou kia tutuki i ngā paerewa ture, kia whakaitihia ai ngā tukunga me te haunga me te pupuri tonu i te kounga o te pahuka.
Ngā Whakamahinga o te Pahuka Rehu me ngā Whakakōkī Polyurethane
Ka kitea ngā tono mō te whakamahana pahuka rehu i roto i ngā tautuhinga maha:
- Ngā Whare Noho me ngā Whare PakihiTe whakamahana i ngā pakitara, i ngā tuanui, me ngā rūma o raro hei whakaiti i te whakapaunga pūngao.
- Te Whakamarumaru AhumahiTe whakarato i ngā ārai wera me te makuku mō ngā tāke rokiroki me ngā paipa.
- AunoaTe whakamahana i ngā roto o te waka hei ārai i te haruru me te whakahaere i te pāmahana.
- Ngā Paewhiri Pouaka WhakamataoTe whakarei ake i te whai huatanga o te pūngao o ngā waeine rokiroki makariri.
Whakamutunga
He mea nui te mahi a ngā whakakorikori polyurethane i roto i te whanaketanga me te mahi a ngā rauemi whakamahana pahuka rehu. Mā te akiaki i ngā tauhohenga matū e tika ana, ka āwhina ēnei whakakorikori ki te waihanga i te whakamahana he pai te whakamahi i te pūngao, he roa te mau, he pai hoki mō te taiao. I te mea kei te tipu haere tonu te hiahia o te umanga mō te whakamahana mahi-teitei, ka noho tonu ngā whanaketanga o te hangarau whakakorikori hei mea nui ki te hanga i te heke mai o ngā tono pahuka rehu.
Wā tuku: Whiringa-ā-rangi 28-2024