Muaj kev txwv nyob rau hauv kev txhim kho cov kev ua tau zoo ntawm Gypsum muab tshuaj txhuam los ntawm ib tus admixture. Yog tias kev ua yeeb yam ntawm Gypsum tshuaj khib yog kom ua tiav cov txiaj ntsig tau txaus siab thiab ua tiav cov ntaub ntawv thov sib txawv, cov ntaub ntawv admixtures, cov ntaub ntawv admixtures, cov ntaub ntawv admixtures, yog muaj ntau yam ntaub ntawv sau tau los sib xyaw thiab tsim nyog.
1. Cov coagulant
Kev tswj hwm kev tswj hwm feem ntau yog muab faib ua cov retarder thiab sib koom tes. Hauv gesso qhuav mix cug, cov khoom lag luam uas siv subso los ua kom tiav kev siv dej hiav txwv coagumined
2. Retarder
Los ntawm kev ntxiv retarder rau gypsum qhuav sib xyaw ua ke vaj tsev, cov txheej txheem cov txheej txheem ntawm ib nrab ntawm gypsum yog inhibited thiab lub sijhawm solidification yog lub caij nyoog ntev lawm. Cov kev ua haujlwm ntawm cov pa hluav taws xob ntawm gypsum plaster yog ntau yam, suav nrog theem muaj pes tsawg leeg ntawm gypsum plaster, ntsuas kub, teeb sijhawm ntawm cov khoom tiav. Txhua yam muaj qee yam cuam tshuam ntawm kev ua kom tiav, yog li muaj qhov sib txawv ntawm cov neeg sawv cev ntawm cov neeg sawv cev txawv. Nyob rau tam sim no, zoo dua qub kev ua haujlwm Gypsum tshwj xeeb retarder Hauv qab hom Hom Stucco Gypsum npaj nyiaj feem ntau nyob rau hauv 0.06% ~ 0.15%.
3. Cov coagulant
Ua kom nrawm lub sijhawm ntawm slurry thiab prolonging lub stirring ceev ntawm slurry yog ib qho ntawm cov kev siv lub cev los txhawb kev sib cav. Tshuaj lom neeg co keulants feem ntau siv nyob rau hauv anhydre gypsum hmoov tsev cov ntaub ntawv yog poov tshuaj tshuaj yog cov khoom siv poov xab yog poov tshuaj chloride, cov poov tshuaj silicate, sulfate thiab lwm cov kua qaub. Qhov ntau npaum li cas yog feem ntau 0.2% ~ 0.4%.
4. Dej Tuav Reture Tus Neeg Sawv Cev
Gesso qhuav sib tov cov ntaub ntawv hauv tsev tsis tuaj yeem tiv thaiv tus neeg sawv cev dej. Txhawm rau txhim kho cov dej khaws cia ntawm tus nqi tuav ntawm gypsum cov khoom slurry yog kom ntseeg tau tias cov dej muaj peev xwm ua tau tias cov dej muaj peev xwm tau txais cov dej ua haujlwm zoo thiab ua rau muaj cov nyhuv tawv. Txhim kho cov khoom siv hauv tsev, txo tus kab mob slegrine, txhim kho lub sijhawm qhib kev ua kom zoo nkauj, txhim kho lub nruas kev tawg thiab khoob tsis muaj dej los ntawm dej tuav. Seb tus neeg sawv cev rau cov dej yog qhov zoo tshaj plaws yog nyob ntawm nws qhov kev tsis txaus ntseeg, molding, thickal, thickening, ntawm cov dej twg tseem ceeb tshaj plaws yog qhov tseem ceeb tshaj plaws.
Cellulose ether dej-tuav tus neeg sawv cev
Ntawm tam sim no, HydroxyPropy cellulose yog qhov dav tshaj plaws hauv kev ua lag luam, ua raws li methyl cellulose, thiab cellulethyl cellulose. Cov kev nkag siab ntawm Hydroxypropyl methylropy cellulose tau zoo dua li methyl cellulose. Cov dej tuav tseg ntawm hydroxypropyl cellulose muaj ntau dua li ntawm carboxymethyl cellulose, tab sis cov nyhuv thicking yog qhov phem tshaj li ntawm carboxymethyl cellulose. Hauv Gypsum qhuav cov ntaub ntawv tsim tsev ua kom qhuav, tus nqi ntawm cov hydroxypropyl thiab methyl cellulose yog nyob rau hauv ntau tus corboxymethyl cellulose yog nyob rau hauv ntau ntawm 0.5% ~ 1.0%.
Cov hmoov txhuv nplej siab-khaws cia
Cov hmoov txhuv nplej siab tiv thaiv cov dej hauv dej feem ntau ntawm gesso tau muab tus qauv xim stucco, tuaj yeem hloov kho ib nrab lossis tag nrho cov xov tooj ntawm cov dej. Kev ua haujlwm, ua kom muaj kev ua haujlwm thiab muaj txiaj ntsig ntawm slurry tuaj yeem txhim kho los ntawm kev ntxiv cov hmoov txhuv nplej siab rau gypsum qhuav cov ntaub ntawv lub tsev. Feem ntau siv cov hmoov txhuv nplej siab cov tsiaj muaj cov qoob loo yog cov qoob loo rau cov qoob loo Cov hmoov txhuv nplej siab tiv thaiv dej tshuaj tiv thaiv dej hauv 0.3% ~ 1% ua rau gesso cov khoom lag luam hauv qab no noo ib puag ncig, cuam tshuam rau cov phiaj xwm zoo ncaj qha.
Yas nplaum Hom Dej Tuav Tus Neeg Sawv Cev
Qee cov nplaum nplaum tam sim no tseem tuaj yeem ua lub luag haujlwm zoo dua hauv cov dej khaws cia. Xws li 14-88, 24-88 polyvinyl cawv hmoov, gypsum cov kua nplaum tsim tsev, hauv qee qhov xwm txheej, tuaj yeem txo tus nqi ntawm Cellulose dej tswj hwm tus neeg saib xyuas. Tshwj xeeb tshaj yog nyob rau hauv Fast Sticking Gypsum, nws tuaj yeem hloov cov neeg hauv cellulose hauv qee kis.
(4) Cov Dej Inorganic Retaining Cov Ntaub Ntawv
Daim ntawv thov ntawm composite lwm cov ntaub ntawv dej hauv gypsum qhuav cov khoom siv hauv tsev tuaj yeem txo cov khoom siv dej, thiab txhim kho kev ua haujlwm thiab tsim cov gypsum slurry. Cov dej feem ntau siv inorganic dej khaws cia yog bentonite, kaolin, diatomite, zeolite hmoov, perlite hmoov av, thiab lwm yam.
5. Cov nplaum
Daim ntawv thov ntawm Adhesive nyob rau hauv Gypsum Qhuav Sib xyaw Lub Tsev Ua Haujlwm hauv tsev yog qhov qis dua rau dej tuav cov neeg sawv cev thiab so haujlwm. Gesso tus kheej lug-cug, adhesive gesso, caulking gesso, cua sov txuag gesso kua nplaum tsis tuaj yeem tawm ntawm cov tshuaj tsw qab.
Redispersible Luv LasTeX Hmoov:
Redispersible looj cov hmoov tau dav hauv Gypsum tus kheej cug, gypsum rwb thaiv tsev kua nplaum, gypsum caulking putty thiab lwm yam. Tshwj xeeb tshaj yog nyob rau hauv Gypsum tus kheej cug, nws tuaj yeem ua rau cov slurry viscidity, kom txo qis kev tawm tsam, txhim kho cov kab nrib pleb thiab yog li ntawd kuj tau ua lub luag haujlwm zoo. Kev siv feem ntau 1.2% ~ 2.5%.
Lub Ca Instant Polyvinyl:
Tam sim no, lub instant yaj polyvinyl cawv nrog ntau npaum li cas ntawm kev ua lag luam yog 24-88, gesso compound kua nplaum, thiab lwm yam khoom, ntau npaum li cas nyob rau hauv 0.4% ~ 1.2% feem ntau.
Guar pos hniav, teb gelatin, carboxymethyl cellulose, cov hmoov txhuv nplej siab ether thiab li ntawm cov khoom sib xyaw ua ke hauv tsev.
6. Thickener
Thickening yog feem ntau yog txhim kho kev ua haujlwm thiab fluentum slurry, uas yog zoo ib yam li cov nplaum thiab dej tuav tus neeg sawv cev, tab sis tsis tag. Qee cov neeg sawv cev ua kom zoo yog qhov zoo hauv cov nyhuv tuab rau cov nyhuv tuab Thaum ua tau Gypsum qhuav cov ntaub ntawv tsev, lub ntsiab nyhuv ntawm admixture yuav tsum tau thov qhuas kom zoo dua thiab muaj peev xwm siv tau. Feem ntau siv cov khoom thickener yog polyacrylamide, cov pos hniav ntsuab, cov pos hniav guar, carboxymethyl cellulose.
7. Huab cua-Entraining Tus Neeg Sawv Cev
Huab cua Entrains tseem hu ua Foaming Tus Neeg Sawv Cev, feem ntau yog siv nyob rau hauv Gypsum rwb thaiv tsev kua nplaum, plaster plaster thiab lwm yam Gypsum qhuav cov khoom siv hauv tsev qhuav. Huab cua Entraining (ua npuas ncauj) yuav pab txhim kho kev tsim kho thiab kev los ntshav, cov tshuaj tua kab mob siab, cov tshuaj ntau feem ntau nyob hauv 0.02%.
8. Defoaming Tus Neeg Sawv Cev
Defoaming tus neeg sawv cev feem ntau yog siv ntawm gesso tus kheej txoj kev sib xyaw ua ke, dej hiav txwv, dej tsis kam, noj kev sib deev, noj mov yog nyob rau hauv 0.02% feem ntau.
9. Dej txo tus neeg sawv cev
Txo cov dej dej haus dej tuaj yeem txhim kho gesso slurry fluidity thiab gesso tawv lub zog muaj zog, feem ntau ntawm kev collabing selreving cug, stucco gesso. Tam sim no cov neeg saib xyuas dej hauv tsev yog polycarboxylic dej reducing dej, Fantosulfonate dej txo tus neeg sawv cev thiab muaj zog. Ntxiv nrog rau kev noj dej thiab lub zog, nws yog ib qho tsim nyog kom them sai sai rau lub sijhawm ua haujlwm thiab kev siv dej haus dej hauv Gypsum qhuav cov khoom siv hauv tsev.
10. Tus neeg sawv cev Waterproofing
Qhov loj tshaj plaws tsis xws luag ntawm gypsum cov khoom yog cov dej tsis zoo. Thaj chaw uas muaj cov cua loj dua cov dej ntws tau rau cov dej tsis kam rau Gypsum qhuav cov tshuaj khib. Feem ntau, cov dej tsis kam ntawm gypsum hardened lub cev tau txhim kho los ntawm kev ntxiv hydraulic admixture. Nyob rau hauv cov xwm txheej ntawm ntub dej los yog cov dej khov, cov coeffened lub cev muaj peev xwm ncav cuag 0.7, yog li kom tau raws li cov kev xav tau ntawm 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, dej Kev rho tawm) Cov dej tsis kam. Gypsum waterproof agent has ammonium borate, methyl sodium silicate, silicone resin, milk fossil wax, the effect is better and silicone emulsion waterproof agent.
11. Lub Active activator
Natural thiab tshuaj anhydrous gypsum tuaj yeem ua kom nws nplaum thiab muaj zog, thiaj li yuav tsum tau tsim rau kev tsim cov gypsum qhuav cov khoom siv hauv tsev. Cov acid activator tuaj yeem ua kom muaj kev tswj hwm kev kub thaum ntxov ntawm lub teeb tsa thaum ntxov, luv luv lub sijhawm teeb tsa thiab txhim kho lub zog thaum ntxov ntawm gypsum hardened lub cev. Alkaline Actionator muaj cov nyhuv me me ntawm cov khoom siv tsis zoo ntawm lub cev, thiab muaj peev xwm txhim kho cov dej khov kho ntawm cov dej tsis kam ntawm gypsum hardened lub cev Cov. Daim ntawv thov kev cuam tshuam ntawm cov kua qaub-paus compound activip yog qhov zoo dua li ntawm ib qho kua qaub lossis cov activator. Acid activators xws li cov poov tshuaj alum, sodium sulfate, poov tshuaj sulfate thiab li ntawd. Alkaline cov kev ua ub no suav nrog QuickTlime, cement, cement clinker, calmined dolomite thiab li ntawd.
Thixotropic roj nplua nyeem
Thillovariable cov roj nplua nyeem yog siv hauv kev tshuaj khib nyiab lossis kev sib tsoo, kom txo cov slurry, thiaj li ua kom slurry tau txais lubricy tau zoo thiab tsim kho, thaum ua tus Hardened lub cev qauv hnav khaub ncaws, nce nws lub zog saum npoo.
Lub Sijhawm Post: Tsib Hlis-25-2022