Hydroxypropyl methylcelluloseme te 100,000 te pokey he mea rawaka ki te paura putty, i te mea he nui ake te whakaritenga mo te moata mo te pokey, no reira me whiriwhiri te 150,000 kia pai ake te whakamahi. Ko te mahi tino nui ohydroxypropyl methylcelluloseko te pupuri i te wai, ka whai i te whakamatotoru. Na reira, i roto i te paura putty, i te mea ka tutuki te pupuri wai, ka whakaaetia hoki te iti o te pokey. I te nuinga o te korero, ko te teitei ake o te paheketanga, ko te pai ake o te pupuri i te wai, engari ka nui ake te viscosity ki te 100,000, kaore he mea nui te painga o te pokey ki te pupuri wai.
Hydroxypropyl methylcelluloseKo te tikanga ka wehewehea ki nga waahanga e whai ake nei i runga i te viscosity:
1. Iti pokey: 400 pokey cellulose, te nuinga whakamahia mō te kumete whakaōrite-whaiaro.
He iti te pokey, he pai te rere, i muri i te taapiri ka whakahaere i te pupuri i te wai mata, kaore e kitea te maru o te wai, he iti te whakaheke, ka heke te pakaru, ka taea hoki te aukati i te parataiao, te whakarei ake i te wai me te papu.
2. Waenga-iti pokey: 20,000-50,000 viscosity cellulose, te nuinga whakamahia mō hua gypsum me āpiha caulking.
Te pokey iti, te pupuri wai, te mahi hanga pai, te iti o te taapiri wai.
3. Pokey Waenga: 75,000-100,000 viscosity cellulose, te nuinga whakamahia mo te putty taiepa o roto me waho.
Pokey āhua, pai pupuri wai, pai hanga me te iri āhuatanga
4. Pokey teitei: 150,000-200,000, te nuinga whakamahia mō te matūriki polystyrene matūriki matūriki moata kāpia kāpia paura me vitrified moroiti-pirepire kumete mātao. Te pokey teitei, te pupuri i te wai nui, kaore i te ngawari te takahanga o te kumete, te rere, te whakapai ake i te hanga.
Ko te tikanga, ko te teitei ake o te pokey, ko te pai ake o te pupuri wai. Na reira, he maha nga kaihoko ka whiriwhiri ki te whakamahi i te cellulose reo-viscosity (75,000-100,000) hei utu mo te cellulose viscosity medium-iti (20,000-50,000) hei whakaiti i te moni taapiri me te whakahaere i nga utu.
Hydroxypropyl methylcellulose (HPMC)he polymer semisynthetic e whakamahia nuitia ana i roto i nga momo ahumahi, tae atu ki te hangahanga, te rongoa, me te mahi kai. Ko te pokey o te HPMC he taonga nui e whakatau ana i tana mahi i roto i nga tono rereke.
Ko te pokey o te HPMC ka awehia e nga mea penei i te tohu whakakapinga (DS), te taumaha ngota, me te kukū o te otinga HPMC. Ko te tikanga, i te mea ka piki te tohu whakakapinga me te taumaha ngota o te HPMC, ka nui haere ano tona pokey.
Kei te waatea te HPMC i roto i te whānuitanga o nga tohu pokey, te tikanga ine i runga i te "taimaha rāpoi", "methoxyl content" ranei. Ka taea te whakarereke i te pokey o te HPMC ma te whiriwhiri i te karaehe e tika ana, ma te whakatika ranei i te kukū o te otinga HPMC.
I roto i nga tono hanga, he maha nga wa e whakamahia ana te HPMC me te viscosity teitei ake ki te whakapai ake i te kaha mahi me te pupuri wai o nga rawa-sima. I roto i nga rongoako, he mea nui te viscosity ki te whakahaere i te reiti tukunga o nga kai kaha i roto i nga waihanga tarukino.
Na reira, he mea nui te maarama ki te viscosity o te hydroxypropyl methylcellulose mo te whiriwhiri i te karaehe tika mo nga tono motuhake me te whakarite i nga ahuatanga mahi e hiahiatia ana.
Te wa tuku: Mei-30-2024