He rauemi mata nui te Hydrotalc mō ngā whakapūmau konupūmā konutea. He hanganga me ngā āhuatanga motuhake tō Hydrotalc, ā, ko ōna āhuatanga matua ko te kawakore me te maha o ngā porosity, me te mahi me te whai huatanga ahurei me te tino pai. Ka taea e ia te mimiti i te hauwai pūhaumāota i tukuna i te wā o te pakaru o te PVC, te whakaroa i te pānga whakakorikori-ā-whaiaro o te hauwai pūhaumāota ki te kapia PVC, ā, hei mimiti waikawa, e mōhiotia ana ko te pumau wera. He mea whakamahi noa hei whakapūmau wera.
He pai anō hoki ngā painga o Hydrotalc, arā, he mārama, he pai te ārai i te hau, he ātete ki te huarere, ā, he ngāwari hoki te tukatuka. Kāore e poke i ngā sulfide, kāore e paitini, ā, ka taea te mahi tahi me ngā mea whakaū wera pērā i te hopi konutea me te tine waro. He momo whakaū wera āwhina tino whai hua, kāore e paitini.
He paparanga nui te hanganga o te hydrotalcite, he 0.76-0.79nm te tawhiti i waenga i ngā paparanga, ā, he nui te horahanga mata motuhake, e āhei ai ōna rōpū hydroxyl mata ki te tauhohe katoa ki te hauwai pūhaumāota, ā, he pai hoki tōna pānga ki ngā mea whakau.
Ko ngā ngoikoretanga o te hydrotalcite ko:
1. Mō te mā o te tīmatanga, kāore he pānga o te hydrotalcite ki te whakapai ake i te tae tīmatanga o te PVC, ahakoa ko ia anake, ko te mahi tahi rānei me te pūnaha konutea konutea. I muri i te pakeketanga i roto i te oumu wera 180 ℃, ka huri te tae o te tauira ki te whero.
2. Mō te pumau o te wera whero o Congo, mā te mahi kotahi o te hydrotalcite ka taea te whakapai ake i te wā pumau wera o te PVC, ā, i te pikinga ake o te nui o te tāpiri, ka piki haere te wā pumau wera o te PVC, engari kāore i te tino hira te pikinga.
3. Ina whakamahia te hydrotalcite me te pūnaha konutea konutea hei whakaū wera, ka tino pai ake te wā pumau wera o te PVC, ā, ka tutuki hoki te ia o te pikinga o te wā pumau wera me te pikinga o te nui o te tāpiri. Nō reira, me whakarōpū ngā hauwaiwai konganuku dihydroxy hei whakaū wera āwhina mō te wā roa, ka taea ai te whakaroa ake i te wā pumau wera mō te wā roa o te PVC. Nō reira, i te wā e whakaranua ana ngā whakaū konutea konutea konutea, ko te hydrotalcite tētahi o ngā rauemi mata nui.
Wā tuku: Mei-24-2024
