He rerekē ngā matū e rua te hydroxyethyl cellulose me te ethyl cellulose. Ko ēnei ō rāua āhuatanga.
Te pūhui hauwaioraitiri
Hei matū horoi kore-ionic, hei tāpiri atu ki te whakamātotoru, te whakatārewatanga, te here, te whakamānu, te hanga kiriata, te marara, te pupuri wai me te whakarato i ngā colloid tiaki, kei a ia anō ēnei āhuatanga e whai ake nei:
1. Ka wairewa te HEC i roto i te wai wera, i te wai matao rānei, ā, kāore e pupū ake i te pāmahana tiketike, i te wai kohua rānei, nō reira he whānuitia ngā āhuatanga wairewa me te matotoru, ā, kāore e wera te wai;
2. Ka taea e te mea kore-ionic te noho tahi me te whānuitanga o ngā polymer wairewa-wai, ngā surfactants me ngā tote, ā, he mea whakamātotoru colloidal pai rawa atu kei roto ngā otinga electrolyte kukū-teitei;
3. E rua ngā teitei ake o te kaha pupuri wai i tō te methyl cellulose, ā, he pai ake te whakahaere rere;
4. Ki te whakaritea ki te methyl cellulose me te hydroxypropyl methyl cellulose kua mōhiotia, ko te kaha marara o HEC te mea kino rawa atu, engari ko te colloid tiaki te mea tino kaha.
Ethyl cellulose
He etere cellulose kore-ionic tēnei, kāore e wairewa i roto i te wai engari ka wairewa i roto i ngā whakarewa waro. Ko ēnei ōna āhuatanga:
1. Kāore i te ngāwari ki te tahu.
2. He pai te pumau o te wera me te tino pai o te kirihou.
3. Kāore e rerekē te tae i te hihi o te rā.
4. He ngāwari pai.
5. Ngā āhuatanga hiko-kore pai.
6. He tino pai te ātete ki te kawakore, he ngoikore hoki te ātete ki te waikawa.
7. He pai te mahi ārai-pakeketanga.
8. He ātete pai ki te tote, te makariri me te mimiti makuku.
9. Pūmau ki ngā matū, ka taea te penapena mō te wā roa, kāore e pirau.
10. Hototahi ki te maha o ngā kapia, ā, he pai te hototahitanga ki ngā mea hanga kirihou katoa.
11. He ngāwari te huri tae i raro i te taiao kawakore kaha me ngā āhuatanga wera.
Wā tuku: Whiringa-ā-rangi-01-2022