Hydroxypropylmethylcellulose HPMC mune plastering madhaka

Hydroxypropyl methylcellulose (HPMC) chigadzirwa chekunze kwemadziro ekuisa plastering dhaka inogadzirwa kubva yakakwira-kuchena donje cellulose kuburikidza neakakosha etherification pasi pemamiriro ealkaline. Iyo yese maitiro inopedzwa pasi pekutariswa otomatiki uye haina chero mhuka yezvigadzirwa. Active zvinhu zvakaita senhengo nemafuta. Inoshandiswa zvakanyanya kuvandudza mashandiro e hydraulic zvivakwa zvekuvaka senge simende uye gypsum. Mune simende-yakavakirwa dhaka, inogona kuvandudza kuchengetwa kwemvura, kuwedzera nguva yekururamisa uye nguva yakavhurika, uye kuderedza kusagi.

Mudhaka rekupurasita, huwandu hwekuwedzera hwehydroxypropyl methylcellulose hwakaderera, asi hunogona kuvandudza zvakanyanya mashandiro edhaka rekupurasita, uye ndiyo inonyanya kusanganiswa inokanganisa kushanda kwekuvaka kwedhaka. Kusarudzwa kunonzwisisika kwehydroxypropyl methylcellulose ine viscosities yakasiyana uye mari yekuwedzera ine simba rakanaka pakuvandudza kushanda kwevhu rakaoma dhaka.

Mukupura dhaka, hydroxypropyl methylcellulose HPMC inoita basa mukuchengetedza mvura, kukora, kunonoka simende hydration, uye kunatsiridza kuita kwekuvaka.

Kugona kuchengetedza mvura kunoita kuti simende hydration iwedzere kuzara, inogona kuwedzera kunyorova viscosity yedhaka rakanyorova, kuvandudza simba rekubatanidza redhaka, uye inogona kugadzirisa nguva yekushanda. Pamusoro pezvo, kuita kwekupomba kwekupfapfaidza dhaka kunogona kuvandudzwa nekuda kwekuwedzerwa kwehydroxypropyl methylcellulose HPMC, saka hydroxypropyl methylcellulose HPMC ichasimudzirwa zvakanyanya sedhaka rekuwedzera.

1. Zvivako zvinochengetedza mvura - hydroxypropyl methylcellulose HPMC ndeyekudzivirira mvura kuti isapinda mumadziro.

Mvura yakakwana inosara mudhaka, zvichiita kuti simiti ive nenguva yakareba yemvura.

Kuchengetedzwa kwemvura kwakanyatso kuenzana neiyo viscosity ye cellulose ether mhinduro mudhaka.

Iyo yakakwirira viscosity, zviri nani kuchengetedza mvura. Kamwe mamorekuru emvura akawedzera, kuchengetwa kwemvura kunoderera.

Nekuti huwandu hwakafanana hwehydroxypropyl methylcellulose HPMC mhinduro yekuvaka, kuwedzera kwemvura kunoreva kudzikira kweviscosity.

Kuwedzera kuchengetwa kwemvura kuchaita kuti nguva yakareba yekurapa kwedhaka rinoshandiswa.

2. HPMC thickener inonyanya kushandiswa sechinhu chinokonzera mumiririri we interface.

Inogona kuvandudza kusimba kwesimba uye kushanduka kwesimba, kunatsiridza iyo pamusoro pekuvhara, kuwedzera kunamira, uye kuwedzera simba rekunamatira redhaka.

Yakanaka permeability inovandudza kufanana kweiyo interface. Wedzera lubricity uye fluidity yedhaka, ita kuti zvive nyore kuisa uye kugadzirisa kushanda zvakanaka.

3. Kushandiswa kwehydroxypropyl methylcellulose HPMC kunogona kuvandudza kuvakwa kwedhaka.

Tile glue inogona kushandiswa sechinhu chinochengetedza mvura uye chinonamira mukusungirirwa kwematiles, izvo zvinogona kuvandudza zvakanyanya mashandiro ekuvaka kweadhesive, kuita kuti ive nenguva yakareba yakavhurika uye yakasimba kunamatira, uye kudzivirira mataira kubva pakudonha nekukurumidza. .

Iyo yakavandudza processability, yakanaka kuchengetedza mvura, yakawedzera kunamatira uye yakakwirira sag kuramba.

Kuvandudza kushanda kwetiling, kunatsiridza mashandiro etiling, kunatsiridza simba rekubatanidza uye kugera simba.

4. Kugona kuzora mafuta.

Yese air-entraining agents anoshanda seanonyorova.

Sezvo vachideredza kushushikana kwepamusoro, vanobatsira mukuparadzirwa kwehupfu hwakatsetseka mumatope kana hwakasanganiswa nemvura.

5. Anti-sag mortar zvinoreva kuti hapana ngozi yekusaga kana kusaga panguva yekuvaka gobvu.

Iyo sag kuramba inogona kuvandudzwa nekushandisa hydroxypropyl methylcellulose HPMC plastering mortar.

Kunyanya iyo ichangobva kugadzirwa hydroxypropyl methylcellulose HPMC yekupurasita dhaka inogona kupa zvirinani anti-sag kuita kwedhaka.