Putty hmoov feem ntau yog 100,000 yuan, thiab cov cai rau tshuaj khib tau ntau dua, thiab Yuan yuav tsum tau siv yooj yim. Ntxiv mus, cov haujlwm tseem ceeb tshaj plaws ntawm HPMC yog dej tuav, ua raws li thickening. Nyob rau hauv cov hmoov putty, tsuav li lub taub dej ceev yog qhov zoo thiab lub viscosity yog tsawg (70,000-80,000), nws tseem ua tau. Ntawm chav kawm, qib siab dua viscosity, zoo dua cov txheeb ze cov dej rov qab khaws cia. Thaum lub viscosity tshaj 100,000, lub viscosity yuav cuam tshuam rau cov dej tuav tseg. Tsis ntau ntxiv lawm.
Dab tsi yog qhov haujlwm tseem ceeb ntawm daim ntawv thov ntawm HPMC hauv cov hmoov putty, thiab nws puas tshwm sim chemically?
Hauv cov hmoov putty, HPMC ua si peb lub luag haujlwm ntawm thickening, dej tuav thiab tsim kho. Thickening: cellulose tuaj yeem ua tuab rau ncua thiab ua kom cov tshuaj daws teeb meem nce thiab nqis, thiab tiv taus sagging. Dej khaws cia: Ua cov hmoov ua kom qhuav maj mam, thiab pab cov ntug dej tshauv kom muaj kev cuam tshuam hauv kev ua dej. Kev tsim kho: Cellulose muaj cov nyhuv muaj lubricating nyhuv, uas tuaj yeem ua rau cov hmoov puty muaj kev tsim kho zoo. HPMC tsis koom nrog kev siv tshuaj lom neeg, tab sis tsuas yog ua lub luag haujlwm pab pawg. Ntxiv cov dej rau cov hmoov putty thiab muab tso rau ntawm phab ntsa yog tshuaj lom neeg cov tshuaj tiv thaiv, vim tias cov tshuaj tshiab tau tsim. Yog tias koj tshem tawm cov hmoov putty ntawm phab ntsa los ntawm phab ntsa, thiab siv nws dua, nws yuav tsis ua haujlwm vim tias cov khoom siv hluav taws xob (calcium carbonate) tau tsim. ) ib yam nkaus. Lub ntsiab ntawm cov hmoov av calcium hmoov yog: sib xyaw ntawm Ca (OHO (OH) 2) ↓ (OH)
Qhov kev sib raug zoo ntawm viscosity thiab qhov kub ntawm HPMC, dab tsi yuav tsum tau them nyiaj mloog rau hauv kev thov siv?
Lub viscos ntawm HPMC yog inversely proportional kom kub, uas yog, viscosity nce li qhov ntsuas kub. Lub viscosity ntawm cov khoom peb feem ntau yog xa mus hais txog qhov kev xeem ua rau nws 2% kev daws teeb meem ntawm qhov kub ntawm 20 degrees Celsius.
Hauv kev siv cov kev siv, nws yuav tsum tau sau tseg tias hauv cov cheeb tsam uas muaj qhov sib txawv loj ntawm lub caij ntuj sov thiab lub caij ntuj no, nws raug nquahu kom siv cov viscosity tsis tshua muaj zog nyob rau lub caij ntuj no, uas yog ntau dua rau kev tsim kho kom tsim kho. Txwv tsis pub, thaum ntsuas kub yog tsawg, viscosity ntawm cellulose yuav nce, thiab txhais tes xav tias yuav hnyav thaum scraping.
Nruab nrab viscosity: 75000-100000 tsuas yog siv rau putty
Vim li cas: Cov Dej Zoo
Lub sij hawm Post: Feb-22-2025