He maha ngā wā ka kitea e tātou ngā rauemi e rua, te nairona me te polyurethane, i roto i ngā momo hua, inā koa i roto i te ao o ngā wira hurihuri. Engari he aha rawa te rerekētanga i waenganui i a rāua, ko tēhea te mea he pai ake te mahi? Kia tūhuratia ngātahitia e tātou.
Tuatahi, me mārama tātou ki te rerekētanga matua i waenga i ēnei rauemi e rua. He ngāwari ake te kī, he rauemi pīwariwari te polyurethane, nō reira he iti ake te haruru, he nui ake hoki te waku. Ko te tikanga he mārire ake te mahi a ngā wīra polyurethane, engari kāore pea i te ātete ki te kakahu pērā i ngā wīra nairona.
He rauemi mārō ake te nairona, ā, he tino pai te ātete ki te pakū. Nō reira, ki te hiahia koe i tētahi mīhini hurihuri he kaha te kawenga me te ātete ki te kakahu, he pai ake pea ngā mīhini hurihuri nairona māu!
Nā te aha rā i rerekē ai ēnei rauemi e rua? Ina hoki, i ahu mai i ō rāua ake hanganga matū me ngā āhuatanga. Ka hangaia te polyurethane mā te whakakotahi i te isocyanate ki ngā matū hydroxyl, ā, he pai tōna ātete ki te hinu, te pakari, te ātete ki te pakū, te ātete ki te koroheketanga me te piri. Ko te nairona, i tētahi atu taha, he nui tōna ātete ki te wera, te ātete ki te ngenge me te pakū, me te kaha miihini me te pumau o ngā āhuatanga.
Wā tuku: 12 o Ākuhata 2024