Nga rereketanga o te hydroxypropyl methylcellulose HPMC me te hydroxyethyl cellulose HEC

He monosodium glutamate ahumahi, carboxymethyl cellulose, hydroxypropyl methyl cellulose, mehydroxyethyl cellulose, ko nga mea e tino whakamahia ana. I roto i nga momo cellulose e toru, ko te tino uaua ki te wehewehe ko te hydroxypropyl methylcellulose me te hydroxyethyl cellulose. Me wehewehe enei momo cellulose e rua ma o raatau whakamahinga me o raatau mahi.

I te mea he surfactant kore-katote, kei a hydroxyethyl cellulose nga ahuatanga e whai ake nei hei taapiri mo te whakatārewa, te whakamaroke, te marara, te rere, te honohono, te hanga kiriata, te pupuri wai me te whakarato i nga colloids whakamarumaru:

1. Ko te HEC ake he katote-kore, ka taea te noho tahi me te tini o etahi atu polymers wairewa-wai, surfactants, me nga tai. He tino pai rawa atu ki te whakakao i te colloidal e mau ana nga otinga electrolyte kukū teitei.

2. Ka whakatauritea ki te methyl cellulose me te hydroxypropyl methyl cellulose, ko te kaha marara o HEC te mea tino kino, engari ko te colloid tiaki te kaha kaha.

3. Ko te kaha o te pupuri i te wai e rua ake te teitei o te methyl cellulose, a he pai ake te whakahaere o te rere.

4. He wairewa te HEC i roto i te wai wera, i te wai matao ranei, karekau e pupuhi i te wera nui, te koropuputanga ranei, na reira he whanuitanga o te whakarewatanga me nga ahuatanga pokey, tae atu ki te waiariki kore.

Te whakamahi HEC: te nuinga o te whakamahia hei maataki whakakaha, hei maataki whakamarumaru, hei whakapiri, hei whakapumau me te whakarite o te whakaehunga, te tiēre, te hinu, te hinu, te horoi kanohi.

Hydroxypropyl methylcellulose (HPMC) tono whakataki:

1. Ahumahi whakakikorua: hei whakapouri, whakamararatanga me te whakapumau i roto i te umanga whakakikorua, he pai te hototahi i roto i te wai, i nga whakarewa pararopi ranei. hei tango peita.

2. Te hanga uku: whakamahia nuitia hei here i roto i te hanga o nga hua uku.

3. Ētahi atu: Kei te whakamahia whānuitia tenei hua i roto i te hiako, ahumahi hua pepa, hua me te tiaki huawhenua me te ahumahi pueru, etc.

4. Ink tā: rite te thickener, dispersant me stabilizer i roto i te ahumahi mangumangu, he pai hototahi i roto i te wai whakarewa organic ranei.

5. Kirihou: whakamahia rite mold release agent, softener, lubricant, etc.

6. Polyvinyl chloride: Kei te whakamahia hei dispersant i roto i te hanga o te polyvinyl chloride, a ko ia te kaihoko awhina matua mo te whakarite i te PVC ma te whakakore i te polymerization.​​

7. Ahumahi hanga: Ka rite ki te kaihoko pupuri wai me te retarder mo te slurry kirikiri sima, hanga te reira i te slurry onepu pumpable. Ka whakamahia hei here mo te whakapiri raima, te gypsum, te paura putty me etahi atu mea hanga whare hei whakapai ake i te horahanga me te whakaroa i te waa mahi. Ka whakamahia hei whakapiri mo te tira karaima, te mapere, te whakapaipai kirihou, hei whakanui i te whakapiri, ka taea hoki te whakaiti i te nui o te ciment. Ko te pupuri wai o te HPMC ka taea te aukati i te slurry mai i te pakaru na te tere rawa o te whakamaroke i muri i te tono, me te whakarei ake i te kaha i muri i te whakapakeke.


Te wa tuku: Oketopa-20-2022