Hepc inobatsira sei kuvandudza mashandiro emota uye plaster

HydroxyPropyl methylcellose (HPMC) is non-ionic cellulose inoshandiswa zvakanyanya mune zvekuvaka, kunyanya dhaka uye plaster. Sezvinowedzera, HPMC inogona kuvandudza zvakanyanya zvinhu zvakasiyana nezvinhu izvi, kusanganisira kushanda, kudzokorora kwemvura, kupwanya kupokana, nezvimwe.

1. Makemikari zvivakwa uye chimiro cheHPMC

HPMC ndeye Synthetic Polymer inowanikwa nekugadzirisa iyo hydroxyl mapoka e cellulose kuburikidza nesimbi uye hydroxypruslation. Yayo yekutanga mamiriro eyuniti ndeye glucose, iyo yakabatana ne β-1,4-glycosic zvisungo. Iyo tambo refu yemasero inopa iyo yakanaka firimu-inoumba zvivakwa uye zvinonamatira zvivakwa, nepo sumo yemamita uye hydroxyprupropyl mapoka anovandudza solubility uye kugadzikana.

Chemical chimiro cheHPMC inopa iyo inotevera maitiro:

Solubil Solubility: Inogona kunyungudika nekukurumidza mumvura inotonhora kuti iite iyo inojekesa viscous mvura.

Kugadziriswa kweViscossity: Mhinduro yeHPMC ine iyo inogadziriswa viscoss, iyo inoenderana neyakaomarara uremu uye kusungirirwa.

Kugadzikana: Iyo yakagadzikana kune acids uye zvigadziko uye zvinogona kuchengetedza mashandiro aro pamusoro pakawanda ph range.

2. Mechanish yeHPMC yekuvandudza mashandiro emota uye plaster

(2.1). Kuvandudza Kuchengetwa Kwemvura
Kuchengetwa kwemvura kunoreva kugona kwemutumbi kana plaster kuchengetedza mvura, iyo yakakosha kune iyo simende hydration uye maitiro akaomarara. HPMC inovandudza kudzokorora kwemvura kuburikidza neyekutevera michina:

Firimu-kuumba maitiro: HPMC inoumba firimu rakatetepa mune dhiri kana plaster, kudzikisira huwandu hwemvura.
Molecular Mvura Inobata: HPMC mamorekuru inogona kutora huwandu hukuru hwemvura, kuderedza kurasikirwa kwemvura panguva yekuvaka.
Kuchengetwa kwemvura kwakakwirira kunobatsira kunyatso nyatso siment, nekudaro uchivandudza simba uye kusungira zvivakwa zve moter uye plaster. Mukuwedzera, zvinodzorawo kuumbwa kwemarara kunokonzerwa nekurasikirwa kwakanyanya kwemvura.

(2.2). Kuvandudza Kubata
Kurovedza kunoreva kuita kwekushanda kwekuita kwemutumbi uye plaster panguva yekuvaka, yakadai sekunyepedzera uye kushanda. Maitiro eiyo HPMC inovandudza basa rinosanganisira:

Kuvandudza Plasticity: HPMC inopa yakanaka lubricity, ichipa musanganiswa uri nani kupurasitiki uye fluidity.
Kudzivirira Delalastation uye Scompreation: Iyo inokakavara yeHPMC inobatsira kuchengetedza kugoverwa kwezvinhu zvimedu, kudzivirira kusarudzika kana kusarudzika muropi kana plaster.
Izvi zvinoita kuti dhaka kana plaster ive nyore kushanda panguva yekuvaka, kubvumira zvakanyanya kunyatsoita basa uye kuumba, kuderedza mukana wekutambisa uye kugadzirisa.

(2.3). Kuwedzera kupaza kupokana
Moturu uye Plaster inogona kupaza nekuda kwehuwandu kuderera panguva yekuomesa, uye HPMC inobatsira kuderedza chiitiko ichi:

Kuchinjika: Iyo network dhizaini yakaumbwa neHPMC mune izvo zvinyorwa zvinowedzera kuchinjika kwemutema uye plaster, nekudaro inomutsa uye kusunungura kushushikana.
Yunifomu kuoma:
Izvi zvivakwa zvinoderedza mukana wekupaza kugadzirwa uye kugadzirisa kusimba kwezvinhu.

3. Mienzaniso yeHPMC application muMortar uye Plaster

(3.1). Tiles inonamira
MuTile Adhesive, HPMC inopa kuchengetedza kwemvura uye anti-inotsvedza zvivakwa, kubvumira matairi kuti ayanere zvakasimba kune substrate uye kuchengetedza yakanaka yekuvaka yekuvaka.

(3.2). Kuzvimanikidza mucheche
Kuzvimirira mongwe kunoda yakakwirira fluidity uye kuzvidzora zvinhu zvinokonzeresa. HpMC's yakakwira mvura yekuchengetwa uye viscosity yekugadzirisa kugona kunobatsira kubatsirwa kuwana izvi zvinodiwa, zvichikonzerwa nenzvimbo yakatsiga.

(3.3). Plaster
HPMC inowedzera kushamwaridzana uye kupaza kudzikisira kweplaster, kunyanya mune yekudziya madziro ekushandisa application, uye inogona kuramba kupaza uye kudonha kunokonzerwa nezvakaringana nezvinhu zvakasiyana.

4. Zvinotangira kushandiswa kweHPMC

(4.1). Kushandiswa
Iyo huwandu hweHPMC inoshandiswa mudhaka uye plaster inowanzo kuve zvishoma zvishoma maererano nehuremu hwekuratidzira, senge 0.1% kusvika 0,1%. Yakawandisa HPMC ichaguma nekunyanyisa viscosity uye kukanganisa kugona; Zvishoma zvishoma zvichaita kuti zviome zvakanyanya kugadzirisa maitiro.

(4.2). Kuwirirana nevamwe vanowedzera
Paunenge uchishandisa HPMC, zvakafanira kufunga nezve zvimwe zvemakemikari zvinowedzera (senge mvura inoderedza, mhepo yekushambadzira yekusagadzikana kwemakemikari zvinoitika kana kuita kwekupedzisira kwezvinhu zvinokanganiswa.

Semakemikari akakosha emakemikari anowedzera, kushandiswa kweHPMC muMolmc uye Plaster zvakanyatsovandudza kuchengetedza kwemvura kwayo, kushanda uye kupenga kuramba. Uku kuvandudzika hakusi kungowedzera mhedzisiro yekuvaka uye hunhu, asi zvakare kunatsiridza kusimba uye kuvimbika kwepurojekiti. Mune zvakanyatso kugadziriswa, nekugadzirisa zvine musoro iyo dosage uye chiyero cheHPMC, kuita kwekutya uye plaster inogona kunyatso kugadzirwa.