Ib tus admixture muaj ib qho kev txwv nyob rau hauv kev txhim kho kev ua tau zoo ntawm gypsum slurry. Yog tias kev ua yeeb yam ntawm Gypsum kev sib khib yog kom ua tiav cov txiaj ntsig tau txaus siab thiab ua tiav cov lus thov sib txawv, cov ntaub ntawv admixtures, fitrers, thiab ntau yam ntaub ntawv yuav tsum tau sib xyaw thiab ua tiav hauv kev tshawb fawb thiab tsim nyog.
01. Ruular Regulator
Coagulation regulators feem ntau muab faib ua cov neeg rov ua haujlwm thiab cov nrawm. Hauv Gypsum qhuav-mixed cug, retarders yog siv rau cov khoom tau npaj nrog cov khoom lag luam npaj nrog anhydrous gythdrate gypsum.
02. Retarder
Ntxiv Retarder rau Gypsum qhuav-sib xyaw ua ke cov ntaub ntawv hauv tsev inhibits cov txheej txheem hemihydrate thiab ntev lub sijhawm teem caij. Muaj ntau ntau yam rau cov hydration ntawm plaster, suav nrog theem sib xyaw ua ke ntawm cov khoom siv plaster, thiab lwm yam khoom muaj qee yam cuam tshuam ntawm cov nyhuv retarding , yog li muaj qhov sib txawv loj hauv tus nqi ntawm retarder hauv cov xwm txheej sib txawv. Tam sim no, qhov zoo dua retarder rau gypsum nyob rau hauv Suav teb yog cov txiaj ntsig zoo, muaj zog me me, muaj zog me me, tsim khoom siv tau zoo, thiab qhib sijhawm ntev. Tus nqi siv nyob rau hauv kev npaj ntawm qab-txheej stucco plan plaster yog feem ntau 0.06% mus rau 0.15%.
03. COAGULANT
Ua kom nrawm ntawm slurry stirring sij hawm thiab lub caij nyoog mus txog lub slurry stringing ceev yog ib qho ntawm cov hau kev sib cav ntawm lub cev nrawm nrawm. Feem ntau siv tshuaj lom neeg cov hmoov av rog hauv cov hmoov av ua kom muaj poov tshuaj Chloride, cov tshuaj potassium silicate, sulfate thiab lwm yam kua qaub. Qhov ntau npaum li cas yog feem ntau 0.2% rau 0.4%.
04. Dej tuav tus neeg sawv cev
Gypsum qhuav-sib tov cov ntaub ntawv hauv tsev yog tsis muaj kev sib cais los ntawm cov neeg sawv cev. Txhim kho cov dej tswj cov khoom lag luam ntawm gypsum cov khoom slurry yog kom ntseeg tau tias cov dej muaj peev xwm ua kom muaj cov dej ntev ntev, yog li kom tau txais cov dej num zoo. Txhawm rau txhim kho kev tsim kho ntawm gypsum cov ntaub ntawv tsev, txo cov teeb meem ntawm kev tawg, thiab cuam tshuam txog kev tawg thiab kev sib tsoo ntawm cov dej khov kho. Txawm hais tias cov dej tuav tus neeg sawv cev yog qhov zoo tshaj plaws yog nyob ntawm nws qhov kev tsis txaus ntseeg, cov khoom siv hluav taws xob kub, ntawm cov cim tseem ceeb tshaj plaws yog dej cia.
Muaj plaub hom dej los tuav cov neeg sawv cev:
①Cellulosic dej tuav tus neeg sawv cev
Tam sim no, cov feem ntau dav siv nyob rau hauv kev ua lag luam yog hydroxypropylulose, ua raws li methyl cellulose thiab carboxymethyl cellulose. Qhov kev ua tau zoo tshaj plaws ntawm hydroxypropylulose zoo dua li ntawm cov tshuaj me, tab sis cov nyhuv ua kom zoo dua li cov carboxymethylcelleculose. Hauv Gypsum qhuav cov ntaub ntawv hauv tsev, tus nqi ntawm hydroxyprropyl thiab methyl cellulose feem ntau 0.1%, thiab tus nqi ntawm cov carboxymethyl cellulose yog 0.5% rau 1.0%. Coob tus ntawm cov ntawv thov piv txwv uas ua pov thawj tias kev siv sib xyaw ntawm ob qho zoo dua.
② Cov Dej Warch Retaining Tus Neeg Sawv Cev
Cov dej STARCH khaws cia rau Gypsum putty thiab tuaj yeem hloov tshooj lossis tag nrho cov dej cellulose khaws cia tus neeg sawv cev. Ntxiv cov hmoov txhuv nplej siab-ua dej rau Gypsum qhuav cov khoom siv tsev ua kom tiav kev ua haujlwm, kev ua haujlwm, thiab xwm yeem ntawm slurry. Feem ntau siv cov hmoov txhuv nplej siab-ua kom cov neeg sawv cev muaj xws li Tapioca hmoov txhuv nplej siab, pupboxymethyl hmoov, thiab carboxypropyl starch. Tus nqi ntawm cov hmoov txhuv nplej siab-ua dej-cov dej ceev-khaws cia feem ntau yog 0.3% rau 1%. Yog tias tus nqi loj heev, nws yuav ua rau cov me me ntawm gypsum cov khoom hauv ib puag ncig huab cua, uas yuav cuam tshuam ncaj qha rau qhov zoo ntawm qhov project.
Dej Lo Lus Yas nplaum Tus Neeg Sawv Cev
Qee cov nplaum nplaum tam sim no tseem tuaj yeem ua lub luag haujlwm kom zoo dua. Piv txwv li, 17-88, 24-88 polyvinyl cawv hmoov, tianqing cov pos hniav ua kom zoo xws li gypsum, gypsum putty, thiab gypsum rwb thaiv tsev kua nplaum. Tuaj yeem txo cov dej ntawm cellulose khaws cia tus neeg sawv cev. Tshwj xeeb tshaj yog nyob rau hauv kev ceev nroo gypsum, nws tuaj yeem hloov lub cellulose ether dej-tuav cov neeg sawv cev hauv qee kis.
④ Inorganic dej khaws cov ntaub ntawv
Daim ntawv thov ntawm compounding lwm cov ntaub ntawv dej hauv gypsum qhuav cov khoom siv hauv tsev, thiab tseem ua lub luag haujlwm ntawm kev txhim kho cov khoom siv ua haujlwm thiab tsim nyog ntawm gypsum slurry. Feem ntau siv inorganic dej-khaws cov ntaub ntawv suav nrog Bentonite, Kaolin, lub ntiaj teb hmoov, zawv hmoov, fostrite hmoov, thiab lwm yam.
05.Kua nplaum
Daim ntawv thov ntawm cov nplaum nplaum hauv Gypsum qhuav cov ntaub ntawv hauv tsev yog thib ob tsuas yog dej-retaining cov neeg sawv cev thiab retarders. Gypsum tus kheej cug, byped gypsum, thiab thermal rwb thaiv tsev gypsum kua nplaum yog txhua qhov tsis muaj txiaj ntsig los ntawm cov nplaum.
▲ Recispersible looj hmoov looj
Redispersible looj cov hmoov tau dav hauv Gypsum tus kheej cug, nws tuaj yeem txhim kho cov kab viscosity, thiab cov khoom siv ntawm cov slurry, thiab tseem ua lub luag haujlwm zoo hauv kev txo qis Delamination, zam kev los ntshav, thiab txhim kho kev tawg tawm. Qhov ntau npaum li cas yog feem ntau 1.2% rau 2.5%.
▲ Instant polyvinyl cawv
Tam sim no, lub nrawm polyvinyl cawv siv nyob rau hauv ib tus nqi loj hauv kev ua lag luam yog 24-88 thiab 17-88. Nws feem ntau yog siv nyob rau hauv cov khoom xws li bypsum, gypsum putty, gypsum putty, gypsum compjite thermal compound, thiab plastering plaster. 0.4% rau 1.2%.
Cov pos hniav geeb, tianqing cov pos hniav, cov kab mob clokhopsyl, etces etherives nrog cov ntaub ntawv sib txawv hauv tsev.
06. Thickener
Thickening yog feem ntau yog txhim kho kev ua haujlwm thiab sagging ntawm gypsum slurry, uas yog zoo ib yam li cov nplaum thiab dej-cov neeg sawv cev, tab sis tsis tag. Qee cov khoom tuab tuab yog ua tau zoo hauv thickening, tab sis tsis zoo nyob rau hauv cov nqe lus ntawm cohesive quab yuam thiab dej khaws cia. Thaum tsim cov gypsum qhuav cov ntaub ntawv tsim cov khoom siv tsev, lub luag haujlwm tseem ceeb ntawm Insixtures yuav tsum yog kev txiav txim siab kom zoo kom ua tiav zoo siab thiab tsim nyog. Cov khoom siv tuab uas siv cov khoom siv tuab xws li polyacrylamide, tianyacrylamide, cov pos hniav guar, cellulose cellulose, thiab lwm yam.
07. Cua-Entraining Tus Neeg Sawv Cev
Huab cua-Entraining tus neeg sawv cev, tseem hu ua foaming tus neeg sawv cev, feem ntau yog siv nyob rau hauv gypsum qhuav-mixed cov tsev ua ke xws li gypsum rwb thaiv tsev thiab plaster plaster. Air-Entraining tus neeg sawv cev (ua npuas ncauj) yuav pab txhim kho kev tsim kho, txo cov ntshav tsis taus, thiab cov tshuaj feem ntau yog 0.01% rau 0.02%.
08. Defoamer
Defoamer feem ntau siv nyob rau hauv Gypsum tus kheej cug thiab gypsum caulking putty, uas tuaj yeem txhim kho cov slurry, thiab cov tshuaj feem ntau yog 0.02% rau 0.04%.
09. Dej Reducing Tus Neeg Sawv Cev
Dej txo tus neeg sawv cev tuaj yeem txhim kho cov kua txiv hmab ntawm Gypsum slurry thiab lub zog ntawm gypsum tus kheej colling cug thiab plaster plaster. Tam sim no cov dej reducers nyob hauv tsev yog qeb raws li lawv cov kua dej thiab cov tshuaj yej zoo li cov pa dej, Melamylate High-Efficiency retarded dej redarded, thiab lignosulfonate dej reducers. Thaum siv cov dej ntws tsawg hauv gypsum qhuav-sib xyaw ua ke cov khoom siv thiab muaj zog,
10. Tus neeg sawv cev Waterproofing
Qhov loj tshaj plaws tsis xws luag ntawm gypsum cov khoom yog cov dej tsis zoo. Cov cheeb tsam muaj cov huab cua siab muaj cov dej siab yuav tsum muaj rau cov dej tsis kam ntawm gypsum qhuav-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed-mixed. Feem ntau, cov dej tsis kam ntawm cov nyom happsum yog kev txhim kho los ntawm kev ntxiv hydraulic admixtures. Nyob rau hauv cov ntaub ntawv ntawm ntub dej los yog cov dej khov, qhov sib ntxiv ntawm cov khoom siv ua kom tau zoo tshaj 0.7, yog li kom tau raws li cov khoom muaj zog. Cov tshuaj ingixtures kuj tseem siv tau los txo cov solubility ntawm gypsum (uas yog, txo cov yaig ntawm gypsum hardened lub cev (uas yog , cov dej sib cais). Gypsum waterproof me nyuam suav suav nrog ammonium medate, soculium cob muaj quav ciab, thiab silicone emulsion waterproofing neeg sawv cev nrog cov nyhuv zoo.
11. Cov tswj hwm nquag
Kev ua kom muaj kev ua kom muaj ntuj thiab tshuaj anhydrites imesdrarts nplaum nplaum thiab lub zog rau kev tsim khoom ntawm gypsum qhuav-sib tov cov ntaub ntawv hauv tsev. Cov acid activator tuaj yeem ua kom nrawm dua thaum ntxov ntawm anhydrous gypsum, luv luv lub sijhawm teem sijhawm, thiab txhim kho lub zog thaum ntxov ntawm gypsum hardened lub cev. Qhov yooj yim Actionator muaj cov nyhuv me me ntawm cov khoom siv hydraulic, thiab tuaj yeem tsim cov khoom siv tawv dawb, thiab txhim kho lub cev tawv, txhim kho cov dej tsis kam ntawm Lub gypsum hardened lub cev pw ua ke. Kev siv cov nyhuv ntawm cov kua qaub-paus compound acavor yog qhov zoo dua li ntawm ib qho acidic lossis cov activator. Acid stimulants muaj cov poov tshuaj alum, sodium sulfate, potassium sulfate, Maas clinker, calmined dolomite, thiab lwm yam Dolomite, thiab lwm yam.
12. Thixotropic roj nplua nyeem
Thixotropic lubricals yog siv nyob rau hauv tus kheej-leveling gypsum lossis kev sib haum xeeb ntawm slurry, yog li ntawd cov slurry tuaj yeem tau txais lubricy thiab ua haujlwm zoo. Nyob rau tib lub sijhawm, cov qauv hauv lub cev yog khaub ncaws hnav, thiab nws lub zog nce ntxiv.
Lub Sijhawm Post: Apr-20-2023