Basa rakakosha reHPMC mudhaka rakanyorova rinonyanya kuve neanotevera maficha matatu:
1. HPMC ine yakanakisa kuchengetedza mvura.
2. Kufurira kweHPMC pakuenderana uye thixotropy yedhaka rakanyorova rakasanganiswa.
3. Kudyidzana pakati peHPMC nesimende.
Kuchengetedzwa kwemvura kuita kwakakosha kweHPMC, uye iko zvakare kuita kunoteyerwa nevazhinji wet-mix dhaka vanogadzira.
Kuchengeta kwemvura kweHPMC kunoenderana nehuwandu hwekunyudzwa kwemvura kweiyo base layer, kuumbwa kwedhaka, kukora kwedhaka, kudiwa kwemvura kwedhaka, uye nguva yekumisikidza yezvigadziriso.
HPMC - kuchengetedza mvura
Iyo yakakwirira tembiricha yegel yeHPMC, zviri nani kuchengetedza mvura.
Izvo zvinhu zvinokanganisa kuchengetwa kwemvura yedhaka-yakavhenganiswa dhaka iHPMC viscosity, kuwedzera huwandu, particle fineness uye tembiricha yekushandisa.
Viscosity chinhu chakakosha parameter yeHPMC kuita.Pachigadzirwa chimwe chete, mhedzisiro yeviscosity yakayerwa nenzira dzakasiyana inosiyana zvakanyanya, uye vamwe vanotopeta mutsauko.Naizvozvo, kana tichienzanisa viscosity, inofanirwa kuitwa pakati pedzimwe nzira dzekuyedza, kusanganisira tembiricha, spindle, nezvimwe. Kazhinji kutaura, kukwirisa viscosity, kunowedzera kunaka kwekuchengetedza mvura.
Nekudaro, iyo yakakwira viscosity uye yakakura kurema kwemamorekuru eHPMC, kuderera kunoenderana mukunyungudika kwayo kuchava nemhedzisiro yakaipa pakusimba uye kuita kwekuvaka kwedhaka.Iyo yakakwirira iyo viscosity, iyo inonyanya kuoneka iyo thickening mhedzisiro yedhaka, asi kwete yakaenzana.Iyo yakakwirira iyo viscosity, iyo inowedzera viscous dhaka rakanyorova, rinoratidza kunamatira kune scraper panguva yekuvaka uye yakakwirira kunamatira kune substrate.Nekudaro, HPMC haina mhedzisiro pakuvandudza kusimba kwesimba remvura yakanyorova pachayo, zvichiratidza kuti iyo anti-sagging performance haisi pachena.Pane zvinopesana, imwe yakagadziridzwa HPMC ine yepakati uye yakaderera viscosity yakanakisa mukuvandudza simba rechimiro chedhaka rakanyorova.
Iko kunaka kweHPMC kunewo imwe pesvedzero pakuchengetedza kwayo mvura.Kazhinji kutaura, kune HPMC ine viscosity yakafanana asi kunaka kwakasiyana, iyo HPMC yakatsetseka, zviri nani kuchengetedza mvura pasi pehuwandu hwekuwedzera.
Nguva yekutumira: Jun-15-2023