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Cov hmoov latex uas tawg tau dua yog cov hmoov dawb khov uas tau los ntawm kev tsuag kom qhuav cov latex tshwj xeeb. Nws feem ntau yog siv ua cov khoom ntxiv tseem ceeb rau "cov mortar sib xyaw qhuav" thiab lwm cov mortars sib xyaw qhuav rau cov ntaub ntawv tsim kho vaj tse sab nraud. Ua tib zoo saib peb cov hauv qab no...Nyeem ntxiv»
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Hydroxypropyl methylcellulose feem ntau yog siv los ua cov khoom tawg hauv kev tsim cov polyvinyl chloride, thiab yog tus neeg sawv cev tseem ceeb rau kev npaj PVC los ntawm kev ncua polymerization. Hauv cov txheej txheem kev tsim kho ntawm kev lag luam kev tsim kho, nws feem ntau yog siv rau hauv kev tsim kho tshuab xws li phab ntsa ...Nyeem ntxiv»
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Cov khoom ntxiv uas tau hloov kho xws li cov khoom ntxiv rau cov mortar uas tau sib xyaw ua ke, cellulose ethers, cov tshuaj tswj kev coagulation, cov hmoov latex uas tau tawg ua tej daim me me, cov neeg sawv cev uas nkag tau rau hauv huab cua, cov neeg sawv cev uas muaj zog thaum ntxov, cov tshuaj txo dej, thiab lwm yam, uas tau ntxiv raws li qhov xav tau ntawm qhov project, ua rau kev ua haujlwm ntawm cov khoom sib xyaw ua ke zoo dua qub ...Nyeem ntxiv»
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Daim ntawv thov ntawm hydroxypropyl methylcellulose (HPMC) hauv kev tsim kho mortar plastering mortar: Kev khaws cia dej siab tuaj yeem ua rau cov cement puv hydrated, ua rau lub zog sib txuas ntau ntxiv, thiab tib lub sijhawm, nws tuaj yeem ua rau lub zog tensile thiab shear zog, zoo heev imp ...Nyeem ntxiv»
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(1) Kev txiav txim siab ntawm viscosity: Cov khoom qhuav tau npaj rau hauv cov kua dej nrog qhov hnyav concentration ntawm 2 ° C, thiab ntsuas los ntawm NDJ-1 rotational viscometer; (2) Cov tsos ntawm cov khoom yog hmoov, thiab cov khoom tam sim ntawd yog suffixed nrog "s". Yuav siv hydroxyp...Nyeem ntxiv»
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Qhov viscosity index ntawm hydroxypropyl methylcellulose yog ib qho tseem ceeb heev. Qhov viscosity tsis sawv cev rau qhov purity. Qhov viscosity ntawm cellulose HPMC nyob ntawm cov txheej txheem ntau lawm. Cov chaw siv sib txawv yuav tsum xaiv cellulose HPMC nrog cov viscosities sib txawv, tsis yog qhov siab dua qhov vi ...Nyeem ntxiv»
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Cov av nplaum sib xyaw ua ke yog hais txog cov khoom siv cementitious, cov pob zeb zoo, cov khoom sib xyaw, dej thiab ntau yam khoom sib xyaw txiav txim siab raws li kev ua tau zoo. Raws li qee qhov sib piv, tom qab ntsuas thiab sib xyaw hauv qhov chaw sib tov, nws raug thauj mus rau qhov chaw siv los ntawm lub tsheb thauj khoom sib tov. Khaws cov...Nyeem ntxiv»
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Cov hom admixtures feem ntau siv rau hauv kev tsim cov mortar qhuav-mixed, lawv cov yam ntxwv kev ua tau zoo, mechanism ntawm kev ua haujlwm, thiab lawv cov kev cuam tshuam rau kev ua tau zoo ntawm cov khoom mortar qhuav-mixed. Cov txiaj ntsig zoo dua ntawm cov neeg sawv cev khaws dej xws li cellulose ether thiab starch ether, redispersible ...Nyeem ntxiv»
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Nrog rau kev nce qib tas mus li ntawm kev lag luam thiab kev txhim kho thev naus laus zis, los ntawm kev qhia thiab kev txhim kho ntawm cov tshuab txau tshuaj khib txawv teb chaws, kev txau tshuaj thiab kev siv tshuab plastering tau tsim kho zoo heev hauv kuv lub teb chaws hauv xyoo tas los no. Kev txau tshuaj khib yog d ...Nyeem ntxiv»
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1. Cov tshuaj hydroxypropyl methylcellulose uas yog hom tshuaj lom neeg txhua hnub yog cov hmoov dawb lossis daj me ntsis, thiab nws tsis muaj ntxhiab, tsis qab thiab tsis muaj tshuaj lom. Nws tuaj yeem yaj rau hauv dej txias thiab sib xyaw cov kuab tshuaj ntawm cov organic kom tsim cov kua nplaum pob tshab. Cov kua dej muaj qhov chaw...Nyeem ntxiv»
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Hydroxyethyl cellulose (HEC) yog ib qho dawb lossis daj daj, tsis muaj ntxhiab, tsis muaj tshuaj lom fibrous lossis hmoov khoom. Nws yog ua los ntawm cov paj rwb nyoos lossis cov pulp refined soaked hauv 30% kua caustic soda. Tom qab ib nrab teev, nws raug coj tawm thiab nias. Nyem kom txog thaum qhov piv ntawm alkaline dej ncav cuag 1: 2.8, tom qab ntawd ...Nyeem ntxiv»
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1. Cov haujlwm ntawm cov hmoov latex uas tawg tau dua hauv cov mortar yog dab tsi? Lus teb: Cov hmoov latex uas tawg tau dua yog pwm tom qab tawg thiab ua haujlwm ua cov nplaum thib ob los txhim kho kev sib txuas; cov colloid tiv thaiv raug nqus los ntawm lub kaw lus mortar (nws yuav tsis raug hais tias raug rhuav tshem tom qab pwm. Lossis tawg...Nyeem ntxiv»