Hydroxypropyl methylcellulose isiri-ionic cellulose ether yakagadziriswa kubva mukotoni yakanatswa kuburikidza nehurongwa hwekuita kwemakemikari.Chinhu chisina kunhuwa, chisina chepfu chichena chehupfu chinonyungudika mumvura uye chinopa Mushonga wakajeka kana kuti wakaita makore zvishoma.Iine maitiro ekukora, kuchengetedza mvura uye nyore kuvaka.Iyo aqueous solution ye hydroxypropyl methylcellulose HPMC inenge yakagadzikana muhuwandu hweHP3.0-10.0, uye kana iri pasi pe3 kana kupfuura 10, viscosity ichaderedzwa zvikuru.
Basa guru rehydroxypropyl methylcellulose mune simenti dhaka uye putty poda kuchengetedza mvura uye kukora, izvo zvinogona kunyatso kuvandudza kubatana uye sag kuramba kwezvinhu.
Zvinhu zvakadai setembiricha uye kumhanya kwemhepo zvinokanganisa chiyero chekupisa kwehunyoro mudhaka, putty uye zvimwe zvigadzirwa, saka mumwaka wakasiyana, kuchengetedza kwemvura kwezvigadzirwa zvine huwandu hwakafanana hweselulosi yakawedzerwa ichavawo nemisiyano.Mukuvaka chaiko, iyo yekuchengeta mvura mhedzisiro yeslurry inogona kugadziriswa nekuwedzera kana kudzikisa huwandu hweHPMC hwakawedzerwa.Kuchengetwa kwemvura kwehydroxypropyl methylcellulose HPMC pakupisa kwepamusoro chiratidzo chakakosha chekusiyanisa kunaka kweHPMC.Yakanakisa HPMC inogona kugadzirisa zvinobudirira dambudziko rekuchengetedza mvura pasi pemamiriro ekushisa.Mumwaka wakaoma uye nzvimbo dzine tembiricha yakakwira uye kumhanya kwemhepo, zvinodikanwa kushandisa yepamusoro-mhando HPMC kuvandudza mashandiro ekuchengetedza mvura kweslurry.
Naizvozvo, mukupisa kwekushisa kwezhizha kuvaka, kuti uwane iyo yekuchengeta mvura, zvinodikanwa kuti uwedzere huwandu hwakakwana hwemhando yepamusoro HPMC zvinoenderana neformula, zvikasadaro pachave nematambudziko emhando sekusakwana hydration, kuderedzwa simba, kuputika. , kuchera uye kudurura kunokonzerwa nekunyanya kukurumidza kuomesa, uye panguva imwechete Uyezve yakawedzera kuoma kwekuvakwa kwevashandi.Sezvo tembiricha inodonha, huwandu hweHPMC hwakawedzerwa hunogona kudzikiswa zvishoma nezvishoma, uye iyo yakafanana yekuchengetedza mvura inogona kuwanikwa.
Mukugadzirwa kwezvinhu zvekuvaka, hydroxypropyl methylcellulose chinhu chinodiwa chekuwedzera.Mushure mekuwedzera HPMC, zvinotevera zvivakwa zvinogona kuvandudzwa:
1. Kuchengetedzwa kwemvura: Kuvandudza kuchengetedza kwemvura, kunatsiridza simende dhaka, yakaoma poda putty inokurumidza kuomesa uye kusakwana kwemvura kunokonzera kuoma kuoma, kuputika uye zvimwe zviitiko.
2. Kunamatira: Pamusana pepurasitiki yakagadziridzwa yedhaka, inogona kusungira zviri nani substrate uye adherend.
3. Anti-sagging: Nekuda kwekukora kwayo, inogona kudzivirira kutsvedza kwedhaka uye zvinhu zvakanamatira panguva yekuvaka.
4. Kushanda kwekushanda: Wedzerai plastiki yevhu, kuvandudza maindasitiri ekuvaka uye kuvandudza kushanda kwekushanda.
Nguva yekutumira: Kubvumbi-12-2023