Putty yog ib hom khoom siv kho kom zoo nkauj hauv tsev. Ib txheej ntawm cov putty dawb rau ntawm qhov chaw ntawm chav dawb uas nyuam qhuav yuav feem ntau yog ntau dua 90 hauv qhov dawb thiab ntau dua 330 hauv qhov zoo. Putty muab faib ua phab ntsa sab hauv thiab phab ntsa sab nraud. Putty phab ntsa sab nraud yuav tsum tiv taus cua thiab hnub, yog li nws muaj cov kua nplaum siab, lub zog siab thiab qis me ntsis qhov ntsuas kev tiv thaiv ib puag ncig. Cov ntsuas kev ntsuas ntawm phab ntsa sab hauv yog qhov zoo, noj qab haus huv thiab kev tiv thaiv ib puag ncig, yog li phab ntsa sab hauv tsis siv sab nraud thiab phab ntsa sab nraud tsis siv sab hauv. Feem ntau cov putty yog gypsum lossis cement-based, yog li qhov chaw yog ntxhib thiab yooj yim rau kev sib txuas ruaj khov. Txawm li cas los xij, thaum lub sijhawm tsim kho, nws tseem tsim nyog los siv ib txheej ntawm tus neeg sawv cev interface rau ntawm txoj kev hauv paus kom kaw txoj kev hauv paus, thiab txhim kho kev sib txuas ntawm phab ntsa, yog li putty tuaj yeem sib txuas zoo dua rau qhov chaw hauv paus.
Tus nqi ntawm HPMC siv tiag tiag nyob ntawm qhov chaw huab cua, qhov sib txawv ntawm qhov kub thiab txias, qhov zoo ntawm cov hmoov calcium tshauv hauv zos, daim ntawv qhia zais cia ntawm cov hmoov putty thiab "qhov zoo uas tus neeg teb xov tooj xav tau". Feem ntau hais lus, ntawm 4kg thiab 5kg.
HPMC muaj lub luag haujlwm ntawm lubrication, uas tuaj yeem ua rau cov hmoov putty muaj kev ua haujlwm zoo. Hydroxypropyl methylcellulose tsis koom nrog hauv kev sib xyaw ua ke, tab sis tsuas yog muaj cov txiaj ntsig ntawm kev pab. Hmoov putty yog ib hom kev sib xyaw ua ke ntawm qhov dej thiab ntawm phab ntsa,
Qee qhov teeb meem:
1. Tshem tawm cov hmoov av ntawm cov putty
A: Qhov no muaj feem cuam tshuam nrog qhov ntau npaum li cas ntawm cov kua qaub calcium, thiab kuj muaj feem cuam tshuam nrog qhov ntau npaum li cas thiab qhov zoo ntawm cellulose, uas pom tau hauv qhov ceev ntawm cov khoom. Qhov ceev ntawm cov dej khaws cia yog qis thiab lub sijhawm hydration ntawm cov kua qaub calcium tsis txaus.
2. Tev thiab dov cov hmoov putty
A: Qhov no muaj feem cuam tshuam rau qhov ceev ntawm kev khaws dej. Qhov viscosity ntawm cellulose qis, uas yooj yim tshwm sim lossis cov tshuaj me me.
3. Koob txhaj tshuaj ntawm cov hmoov putty
Qhov no muaj feem cuam tshuam nrog cellulose, uas muaj cov khoom tsis zoo uas tsim cov zaj duab xis. Tib lub sijhawm, cov khoom tsis huv hauv cellulose muaj qhov sib xyaw me ntsis nrog cov tshauv calcium. Yog tias qhov kev sib xyaw hnyav, cov hmoov putty yuav qhia txog lub xeev ntawm cov seem tofu. Nws tsis tuaj yeem mus rau ntawm phab ntsa thiab tsis muaj lub zog sib txuas. Tsis tas li ntawd, nws kuj tshwm sim hauv cov khoom xws li carboxy pawg sib xyaw hauv cellulose.
Lub sijhawm tshaj tawm: Lub Peb Hlis-17-2022