Thermal uye mechanical properties: chidzidzo
Zvinoratidza kuti HPMC inogona kuvandudza iyo inopisa uye yemagetsi zvimiro zvekupurasa dhaka. Nekuwedzera zvakasiyana-siyana zveHPMC (0.015%, 0.030%, 0.045%, uye 0.060%), vatsvakurudzi vakawana kuti zvinhu zvakareruka zvinogona kugadzirwa nekuderedza uremu hwe11.76% nekuda kwepamusoro porosity inokonzerwa neHPMC. Iyi yakakwirira porosity inobatsira mukupisa kwekushisa, ichidzikisa kufambiswa kwemagetsi echinhu kusvika pa30% uku ichichengetedza kupisa kwakamisikidzwa kweanenge 49 W kana ichiiswa kune imwechete kupisa flux. Kupokana nekutamisa kupisa kuburikidza nepaneru kwakasiyana nehuwandu hweHPMC yakawedzerwa, neiyo yakanyanya kuisirwa yekuwedzera inokonzeresa kuwedzera 32.6% mukupikisa kupisa kana ichienzaniswa nemusanganiswa wereferensi.
Kuchengetwa kwemvura, kushanda nesimba uye simba: chimwe chidzidzo
Zvakaonekwa kuti HPMC inogona kuvandudza zvakanyanya kuchengetedza kwemvura, kubatana uye sag kuramba kwedhaka, uye zvakanyanya kunatsiridza kusimba kwesimba uye kusungirira kusimba kwedhaka. Panguva imwecheteyo, HPMC inogona kunyatso kurambidza kuumbwa kwepurasitiki kutsemuka mudhaka uye kuderedza indekisi yepurasitiki. Kuchengetwa kwemvura kwedhaka kunowedzera sezvo viscosity yeHPMC inowedzera. Kana viscosity yeHPMC ichipfuura 40000 mPa · s, kuchengetwa kwemvura hakuchawedzera zvakanyanya.
Viscosity test nzira: Paunenge uchidzidza iyo viscosity bvunzo nzira yeyakakwira-viscosity hydroxypropyl methylcellulose.
, yakawana kuti HPMC ine zvakanaka kupararira, emulsification, thickening, bonding, kuchengetedza mvura uye glue retention properties. Izvi zvivakwa zvinoita kuti HPMC ishandiswe zvakanyanya muindasitiri yekuvaka.
Kugadzikana kwevhoriyamu: Chidzidzo pamhedzisiro yeHPMC dosage pane yekutanga vhoriyamu kugadzikana kwePortland simende-aluminate simende-gypsum ternary composite self-leveling mortar.
Zvinotaridza kuti HPMC ine simba rakakosha pakushanda kwedhaka rekuzvimisa-leveling. Mushure mekubatanidza HPMC, kushanda kwedhaka rekuzvimisa senge kubuda ropa uye kugadzika kwekuparadzaniswa kunovandudzwa zvakanyanya. Nekudaro, yakawandisa dosage haikonzere kuyerera kwedhaka rekuzvimisa. Iyo yakakwana dosage ndeye 0.025% ~ 0.05%. Panguva imwecheteyo, sezvo iyo HPMC yemukati inowedzera, iyo yekumanikidza simba uye flexural simba rekuzvimisa-leveling dhaka rinodzikira kune akasiyana madhigirii.
Mhedzisiro pakusimba kweplastically yakagadzirwa ceramic green miviri: kuyedza
Mhedzisiro yezvakasiyana HPMC zviri mukati meiyo flexural simba receramic miviri yakasvibirira yakadzidzwa, uye zvakaonekwa kuti flexural simba rakatanga kuwedzera ndokuzodzikira nekuwedzera kweHPMC yemukati. Kana iyo HPMC yekuwedzera huwandu hwaive makumi maviri neshanu muzana, iyo girinhi yemuviri simba yaive yepamusoro pa7.5 MPa.
Dry mix mortar performance: chidzidzo
Zvakaonekwa kuti huwandu hwakasiyana uye viscosities yeHPMC ine mhedzisiro yakakura pakushanda kwekushanda uye mechanical zvimiro zvevhu rakaoma-rakasanganiswa. HPMC ine kugona kuchengetedza mvura uye kukobvu. Kana iyo dosage yakakwira kupfuura 0.6%, iyo fluidity yedhaka inoderera; apo chiyero chiri 0.4%, chiyero chekuchengetedza mvura yedhaka chinogona kusvika 100%. Nekudaro, HPMC inoderedza zvakanyanya simba, nekusvika 75%.
Mhedzisiro pasimende-yakagadzikana yakazara-yakadzika inotonhora yakadzokororwa misanganiswa: chidzidzo
Zvakaonekwa kuti HPMC ichaderedza flexural uye compressive simba resimende mortar mienzaniso mushure me simenti hydration nekuda kwemhepo-entraining effect. Nekudaro, simende yakanyoroveswa mukuparadzirwa kweHPMC yakanyungudika mumvura. Kuenzaniswa nesamende iyo inonatswa mvura kutanga uye yozosanganiswa neHPMC, iyo inochinjika uye inodzvinyirira masimba emasimende edhaka emuenzaniso anowedzerwa.
Iyi data yekuyedza uye mhedzisiro yekutsvagisa inoratidza kuti HPMC ine mhedzisiro yakanaka mukuvandudza kuchengetwa kwemvura yedhaka, kuvandudza kushanda, uye kuvandudza mashandiro emafuta, asi inogona zvakare kuve nemhedzisiro pakusimba uye kugadzikana kwevhoriyamu. Naizvozvo, mumashandisirwo anoshanda, iwo dosage uye zvakatemwa zveHPMC zvinoda kusarudzwa zvine mutsindo zvichienderana nezvinodiwa zveinjiniya uye mamiriro ezvakatipoteredza kuti uwane kuita kwakanakisa kwedhaka.
Nguva yekutumira: Oct-29-2024