Hydroxypropyl Methyl Cellulose (HPMC)chinhu chakakosha cellulose ether. Inoshandiswa zvakanyanya musimende-based mortar masisitimu nekuda kwekusiyana kwayo kwemuviri uye makemikari zvimiro uye yakakosha kuvandudza mukuita kwezvivakwa zvekuvaka. Kunyanya, KimaCell®HPMC yakaratidza mhedzisiro yakanaka mukuvandudza anti-kupararira kwesamende dhaka.
Kukosha kwekurwisa-kupararira
Anti-dispersion chiratidzo chakakosha chekuita chesimende dhaka, iyo inonyanya kuratidza kugona kwedhaka kuchengetedza kufanana kwezvinhu zvemukati pasi pekuita kwemasimba ekunze (sekuzunguza, kukanganisa kana kukweshwa kwemvura). Mukuvaka chaiko, yakanaka anti-kupararira inogona kudzivirira aggregates, cementitious zvinhu uye zvinowedzera mudhaka revhu kubva pakuparadzanisa uye kukanganisa yekupedzisira yekuvaka mhando, nekudaro kuve nechokwadi chekufanana, kusimba kwekubatanidza uye kusimba kwechimiro.
Hunhu hweHydroxypropyl Methyl Cellulose
HPMC i polymer inonyungudika nemvura ine zvinotevera zvakakosha hunhu:
Kukora: HPMC inogona kuwedzera zvakanyanya viscosity ye system mune aqueous solution, ichiita kuti dhaka rive nepamusoro anti-kupararira uye rheological kugadzikana.
Kuchengetedzwa kwemvura: Kuita kwayo kwakanakisa kwekuchengetedza mvura kunogona kuderedza nekukasira kurasikirwa kwemvura mudhaka uye kuderedza njodzi yekupararira kunokonzerwa nekubuda kwemvura.
Firimu-yekugadzira chivakwa: HPMC ichagadzira firimu rinochinjika mushure mekunge dhaka raoma, iro rinowedzera kunamatira kwayo kwepamusoro uye nekuwedzera kunatsiridza midziyo yayo yekurwisa-kupararira.
Lubricity: Inovandudza maitiro ekutsvedza pakati pezvimedu mudhaka, inoita iyo yekusanganisa yunifomu uye inodzivirira kupararira.
Mechanism yeHPMC yekuvandudza anti-kupararira pfuma yesamende dhaka
Inovandudza viscosity uye rheological properties
Mushure mekuwedzera KimaCell®HPMC kune simende dhaka, iyo hydroxypropyl uye methyl mapoka mune ayo mamorekuru chimiro anozogadzira hydrogen zvisungo nemamorekuru emvura, nekudaro kuwedzera viscosity yedhaka system. Yakakwirira-viscosity dhaka inogona kudzikamisa kufamba kwakabatana kwemukati mezvimedu kana zvichiiswa kunze kwemasimba, kuwedzera kugadzikana kwese kwedhaka, uye kuderedza tsika yekuparadzanisa.
Wedzera kuchengetwa kwemvura uye kunonoka hydration rate
HPMC inogona kuumba yunifomu yekuchengetedza mvura muduri kudzivirira mvura kuti ibude nekukasira. Iyo mvura-yekuchengetedza maitiro haingobatsiri iyo hydration reaction mudhaka kuti ienderere mberi zvizere, asi zvakare inoderedza yenzvimbo dilution phenomenon inokonzerwa nekusaenzana kugovera kwemvura, nekudaro inovandudza anti-kupararira pfuma.
Uniform dispersion ye simentitious zvinhu uye aggregates
Iko kukora nekuzora mhedzisiro yeHPMC inoita kuti zvimedu zvakanaka zviri mudhaka zvive zvakapararira zvakaenzana, nokudaro kudzivirira kupatsanurwa kunokonzerwa nekusiyana kwenzvimbo.
Kuvandudza shear resistance yedhaka
HPMC inosimudzira kuramba kwedhaka kugera uye kudedera, uye inoderedza zvinoparadza mhedzisiro yemasimba ekunze pane iyo dhaka chimiro. Zvingave mukusanganisa, kutakura kana kuvaka, zvikamu zviri mukati medhaka zvinogona kuramba zvakabatana.
Mienzaniso yekushandisa uye mhedzisiro yechokwadi
Zvidzidzo zvakaratidza kuti viscosity yesamende dhaka inogona kuwedzera zvakanyanya nekuwedzera 0.2% -0.5% (inoenderana nehuremu hwesimende) yeHPMC, uye hupfumi hwayo hwekudzivirira kupararira hwakavandudzwa zvakanyanya. Munguva yekuvaka, dhaka rine KimaCell®HPMC rinoratidza yakakwira anti-dispersion chivakwa pasi pemvura yakakwira mamiriro, ichidzikisa kugadzikana uye kurasikirwa nesamende kunokonzerwa nekuzunguzika.
Nekuda kwekukora kwayo kwakanakisa, kuchengetedza mvura uye lubrication zvivakwa, hydroxypropyl methylcellulose inogona kuvandudza zvakanyanya anti-kupararira pfuma yesamende dhaka, nekudaro ichivandudza kunaka kwekuvaka uye kusimba kwechimiro. Mukutsvaga kweramangwana, chimiro che molecular uye nzira yekuwedzera yeHPMCinogona kuvandudzwa kuti iwedzere kuwedzera mhedzisiro yayo pakuita kwesimende-yakavakirwa zvinhu. Panguva imwecheteyo, kusanganiswa kweHPMC nezvimwe zvekuwedzera zvinotarisirwawo kugadzira yakakwira-inoshanda zvekuvaka sisitimu ine kuita kuri nani.
Nguva yekutumira: Jan-27-2025