Cov anionic surfactant muaj nyob rau hauvkev tsim khoCov khoom sib ntxiv tuaj yeem ua rau cov ua kom cov dej khov kho kom zoo nkauj los ntawm kev sib xyaw ua ke thiab ua kom muaj kev sib xyaw ua kom muaj zog thiab ua kom muaj kev sib xyaw ua ke, txhim kho impermabeability, tawg tsis kam thiab durability.
Cov mortar tov nrog additives muaj kev ua haujlwm zoo, dej tuav tus nqi, muaj zog adhesion, tsis muaj tshuaj lom, tsis muaj mob, nyab xeeb thiab ib puag ncig zoo. Nws yog tsim rau zus tau tej cov masonry zoo tib yam, plastering, hauv av thiab waterproof mortar nyob rau hauv npaj-mixed mortar factories, thiab yog siv nyob rau hauv kev tsim kho ntawm cov av nplaum cib, ceramsite bricks, hollow cib, qhob blocks, thiab tsis hlawv cib nyob rau hauv ntau yam. industrial thiab civil vaj tse. Kev tsim kho ntawm sab hauv thiab sab nrauv phab ntsa plastering, pob zeb yooj yim phab ntsa plastering, hauv av, ru tsev leveling, waterproof mortar, thiab lwm yam.
1. Cellulose ether
Nyob rau hauv npaj-mixed mortar,cellulose etheryog ib qho tseem ceeb additive uas tau ntxiv nyob rau theem qis heev, tab sis tuaj yeem txhim kho cov khoom ntawm cov mortar ntub dej thiab cuam tshuam rau kev tsim kho ntawm mortar. Kev xaiv tsim nyog ntawm cellulose ethers ntawm ntau hom, sib txawv viscosities, sib txawv particle loj, txawv viscosity degrees thiab cov nyiaj ntxiv yuav muaj txiaj ntsig zoo rau kev txhim kho kev ua haujlwm ntawmqhuav mortar.
Hauv kev tsim cov khoom siv hauv tsev, tshwj xeeb tshaj yog mortar qhuav, cellulose ether plays lub luag haujlwm tsis tuaj yeem hloov tau, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov mortar tshwj xeeb (hloov mortar), nws yog ib qho tseem ceeb thiab tseem ceeb. Cellulose ether plays lub luag hauj lwm ntawm dej tuav, thickening, ncua cov cement hydration zog, thiab txhim kho kev tsim kho. Cov dej tuav tau zoo ua rau cov cement hydration ntau dua, uas tuaj yeem txhim kho cov viscosity ntawm cov khib nyiab ntub dej, txhim kho cov ntawv cog lus lub zog ntawm mortar, thiab tuaj yeem kho lub sijhawm ua haujlwm. Qhov sib ntxiv ntawm cellulose ethers rau cov neeg kho tshuab tshuaj mortars tuaj yeem txhim kho cov tshuaj tsuag lossis cov khoom siv ntawm cov tshuaj khib nyiab, nrog rau lub zog ntawm cov qauv. Yog li ntawd, cellulose ether tau dav siv los ua ib qho tseem ceeb additive nyob rau hauv npaj-mixed mortar.
2. Redispersible polymer hmoov
Redispersible latex hmoovyog cov hmoov thermoplastic cob tau los ntawm cov tshuaj tsuag kom qhuav thiab ua tiav tom qabpolymer emulsion. Nws yog tsuas yog siv nyob rau hauv kev tsim kho, tshwj xeeb tshaj yog qhuav hmoov mortar kom ncekev sib koom tes, cohesion thiab yooj.
Lub luag hauj lwm ntawm redispersible latex hmoov nyob rau hauv mortar: tom qab dispersion ntawmredispersible polymer hmoov, nws tsim ib zaj duab xis thiab ua raws li cov nplaum thib ob los txhim kho adhesion; kev tiv thaiv colloid yog absorbed los ntawm lub mortar system thiab yuav tsis raug puas los ntawm dej tom qab tsim zaj duab xis los yog dispersion thib ob; cov zaj duab xis-forming polymer resin yog muab faib thoob plaws hauv lub mortar system raws li ib tug reinforcing khoom, yog li ua kom lub cohesion ntawm lub mortar.
Nyob rau hauv ntub mortar, dispersible polymer hmoov tuaj yeem txhim kho kev tsim kho, txhim kho kev ua tau zoo, nce thixotropy thiab sag kuj, txhim kho cohesion, ncua sij hawm qhib, thiab txhim kho dej tuav. Tom qab mortar kho tau, nws tuaj yeem txhim kho lub zog tensile. Lub zog tensile, txhim kho cov modulity flexural, txo cov khoom lag luam loj, txo cov khoom uas txo qis khoom ntawm hydrophobic thiab lwm yam.
3.Cua kev nkag siab tus neeg sawv cev
Huab cua-entraining tus neeg saib xyuas, tseem hu ua aerating agent, yog hais txog kev qhia txog ntau tus neeg sib npaug ntawm cov pa npuas me me hauv cov txheej txheem ntawm cov tshuaj sib tov, uas tuaj yeem txo qhov nro ntawm cov dej hauv cov mortar, uas ua rau kom zoo dua dispersibility thiab txo cov mortar sib tov. Additives los ntshav thiab cais. Tsis tas li ntawd, qhov kev taw qhia ntawm cov pa zoo thiab ruaj khov ua npuas kuj txhim kho kev ua haujlwm. Tus nqi ntawm huab cua qhia nyob ntawm seb hom mortar thiab cov khoom siv sib xyaw siv.
Txawm hais tias tus nqi ntawm tus neeg saib xyuas huab cua tsawg heev, tus neeg saib xyuas huab cua muaj qhov cuam tshuam zoo rau kev ua haujlwm ntawm cov khoom sib xyaw ua ke. Nws tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom sib xyaw ua ke, txhim kho cov impermeability thiab Frost tsis kam ntawm mortar, thiab txo qhov ntom ntawm mortar. , txuag cov ntaub ntawv thiab ua kom thaj chaw tsim kho, tab sis qhov sib ntxiv ntawm cov khoom siv cua nkag yuav txo tau lub zog ntawm cov mortar, tshwj xeeb tshaj yog cov mortar-resistant. Yog li ntawd, tus nqi ntawm cov huab cua-entraining tus neeg saib xyuas yuav tsum tau nruj me ntsis tswj, thiab cov huab cua ntsiab lus ntawm lub mortar, kev tsim kho kev ua tau zoo thiab tus txheeb ze lub zog los txiav txim qhov zoo ntawm qhov sib ntxiv.
4. Tus neeg saib xyuas lub zog thaum ntxov
Tus neeg saib xyuas lub zog thaum ntxov yog ib qho khoom ntxiv uas tuaj yeem ua kom muaj zog ntawm cov tshuaj khib nyiab thaum ntxov. Feem ntau ntawm lawv yog inorganic electrolytes, thiab ob peb yog cov organic tebchaw.
Tus neeg sawv cev lub zog thaum ntxov rau kev npaj sib xyaw mortar yuav tsum yog hmoov thiab qhuav. Calcium formate yog qhov siv dav tshaj plaws hauv kev npaj sib xyaw mortar. Calcium formate tuaj yeem txhim kho lub zog thaum ntxov ntawm mortar thiab ua kom lub hydration ntawm tricalcium silicate, uas muaj qee yam dej-txo cov nyhuv, thiab lub cev lub cev ntawm calcium formate yog ruaj khov ntawm chav tsev kub. Nws tsis yooj yim rau agglomerate, thiab nws yog qhov tsim nyog rau daim ntawv thov nyob rau hauv qhuav hmoov mortar.
5. Dej txo tus neeg sawv cev
Dej txo tus neeg sawv cevhais txog ib qho tshuaj ntxiv uas tuaj yeem txo qhov sib xyaw dej hauv qhov xwm txheej uas qhov sib xws ntawm mortar yog qhov zoo ib yam.SuperplasticizersFeem ntau surfactants, uas tuaj yeem muab faib ua: zoo tib yam superplasticizers, superplasticizers, thaum ntxov-lub zog superplasticizers, retarding superplasticizers, retarding superplasticizers, thiab superplasticizers raws li lawv txoj haujlwm.
Cov dej txo tus neeg sawv cev siv rau cov khoom sib xyaw ua ke yuav tsum tau ua hmoov thiab qhuav. Xws li tus neeg saib xyuas dej-txo tuaj yeem sib xyaw ua ke hauv cov hmoov qhuav mortar yam tsis tau txo lub txee lub neej ntawm cov khoom sib xyaw npaj txhij. Tam sim no, daim ntawv thov ntawm cov dej txo tus neeg sawv cev hauv kev npaj sib xyaw mortar feem ntau yog hauv cov cement self-leveling, gypsum self-leveling, batch scraping mortar, waterproof mortar, putty, thiab lwm yam. txawv mortar zog. xaiv tau.
Npaj-mixed mortar additives kuj muaj xws li retarders, accelerators,fibers, thixotropic lubricants, defoaming agents, thiab lwm yam, uas yog ntxiv raws li ntau hom mortars. Cov additives no yog siv nyob rau hauv npaj sib tov mortar coj kev txhim kho nyob rau hauv kev ua tau zoo uas zoo li lub seasoning ntawm ua noj ua haus. Nws yog ntxiv rau cov tais diav kom ci xim ntawm cov tais diav, ua kom lub saj, thiab kaw cov khoom noj khoom haus, kom ntau homnpaj-mixed mortarstuaj yeem ua lub luag haujlwm zoo dua. Cov riam phom ua khawv koob rau kev siv zoo dua hauv cov phiaj xwm qhuav sib xyaw mortar.
Post lub sij hawm: Aug-11-2023