Nyob rau xyoo tas los no, ntau cov hmoov roj hmab resin, cov hmoov roj hmab uas tiv taus dej muaj zog thiab lwm cov hmoov roj hmab pheej yig heev tau tshwm sim hauv khw los hloov cov VAE emulsion ib txwm muaj (vinyl acetate-ethylene copolymer), uas yog tshuaj tsuag-qhuav thiab ua los ntawm cov hmoov roj hmab rov ua dua tshiab. Cov hmoov roj hmab dispersed, yog li qhov txawv ntawm cov hmoov roj hmab thiab cov hmoov roj hmab redispersible yog dab tsi, cov hmoov roj hmab puas tuaj yeem hloov cov hmoov roj hmab redispersible?
Tshuaj xyuas qhov txawv ntawm ob qho no kom paub siv ua piv txwv:
01. Hmoov roj hmab uas yaj tau dua tshiab
Tam sim no, cov hmoov latex uas tau tawg ua dua tshiab uas siv dav hauv ntiaj teb yog: vinyl acetate thiab ethylene copolymer hmoov (VAC/E), ethylene, vinyl chloride thiab vinyl laurate ternary copolymer hmoov (E/VC/VL), acetic acid Vinyl ester, ethylene thiab cov roj fatty acid siab dua vinyl ester ternary copolymer hmoov (VAC/E/VeoVa), peb cov hmoov latex uas tau tawg ua dua tshiab no tswj hwm tag nrho kev ua lag luam, tshwj xeeb tshaj yog vinyl acetate thiab ethylene copolymer hmoov VAC/EE, nyob hauv txoj haujlwm ua tus thawj coj hauv ntiaj teb thiab sawv cev rau cov yam ntxwv ntawm cov hmoov polymer uas tau tawg ua dua tshiab. Tseem yog qhov kev daws teeb meem zoo tshaj plaws hauv kev paub txog kev siv polymers siv rau kev hloov kho mortar:
1. Nws yog ib qho ntawm cov polymers siv ntau tshaj plaws hauv ntiaj teb;
2. Daim ntawv thov kev paub hauv thaj chaw ntawm kev tsim kho yog qhov tshaj plaws;
3. Nws tuaj yeem ua tau raws li cov khoom rheological uas cov mortar xav tau (uas yog, qhov tsim nyog);
4. Cov polymer resin nrog lwm cov monomers muaj cov yam ntxwv ntawm cov organic volatile matter (VOC) tsawg thiab cov roj tsis khaus;
5. Nws muaj cov yam ntxwv ntawm kev tiv thaiv UV zoo heev, kev tiv thaiv cua sov zoo thiab kev ruaj khov mus sij hawm ntev;
6. Kev tiv thaiv siab rau saponification;
7. Nws muaj qhov kub hloov pauv iav dav tshaj plaws (Tg);
8. Nws muaj kev sib txuas zoo heev, kev yooj ywm thiab cov khoom siv kho tshuab;
9. Muaj kev paub ntev tshaj plaws hauv kev tsim tshuaj lom neeg txog kev tsim cov khoom lag luam zoo thiab muaj kev paub txog kev tswj hwm kev ruaj khov ntawm kev khaws cia;
10. Nws yooj yim heev rau kev sib xyaw nrog cov tshuaj tiv thaiv colloid (polyvinyl cawv) nrog kev ua tau zoo.
02. Hmoov av nplaum
Feem ntau ntawm cov hmoov roj hmab "resin" hauv khw muaj cov tshuaj DBP. Koj tuaj yeem tshawb xyuas qhov tsis zoo ntawm cov tshuaj no, uas cuam tshuam rau kev ua haujlwm ntawm txiv neej. Muaj ntau hom hmoov roj hmab no tau muab tso rau hauv lub tsev rau khoom thiab hauv chav kuaj, thiab nws muaj qee qhov kev hloov pauv. Kev ua lag luam hauv Beijing, uas nto moo rau nws cov "hmoov roj hmab" ntau heev, tam sim no muaj ntau lub npe ntawm "hmoov roj hmab" uas tau muab tso rau hauv cov kuab tshuaj: cov hmoov roj hmab uas tiv taus dej tau zoo, cov hmoov roj hmab resin, thiab lwm yam. Cov yam ntxwv ib txwm muaj:
1. Tsis yooj yim tawg, qee qhov xav tias ntub, qee qhov xav tias flocculent (nws yuav tsum yog cov khoom siv porous zoo li sepiolite) thiab qee qhov yog dawb thiab me ntsis qhuav tab sis tseem tsw phem;
2. Nws tsw ntxhiab heev;
3. Muaj qee cov xim tau ntxiv lawm, thiab cov xim uas tam sim no tshwm sim yog dawb, daj, grey, dub, liab, thiab lwm yam.;
4. Tus nqi ntxiv yog me heev, thiab tus nqi ntxiv rau ib tuj yog 5-12 kg;
5. Lub zog thaum ntxov zoo kawg li. Cov cement tsis muaj zog hauv peb hnub, thiab lub rooj tsavxwm rwb thaiv tsev tuaj yeem xeb thiab lo rau;
6. Lawv hais tias lub rooj tsavxwm XPS tsis xav tau tus neeg sawv cev interface;
Los ntawm cov qauv tau txais txog tam sim no, nws tuaj yeem xaus lus tias nws yog cov tshuaj solvent-based resin uas adsorbed los ntawm cov ntaub ntawv porous lub teeb, tab sis tus neeg muag khoom xav kom zam lo lus "solvent", yog li nws hu ua "roj hmab hmoov".
qhov tsis zoo:
1. Qhov kev tiv thaiv huab cua ntawm cov kuab tshuaj yog ib qho teeb meem loj. Hauv lub hnub, nws yuav ua pa sai sai. Txawm tias nws tsis nyob hauv lub hnub, qhov sib txuas ntawm cov khoom yuav lwj sai dua vim yog qhov kev tsim kho qhov;
2. Kev laus tsis kam, cov kuab tshuaj tsis tiv taus kub, txhua tus paub qhov no;
3. Vim tias lub tshuab sib txuas yog kom yaj qhov interface ntawm lub rooj tsavxwm rwb thaiv tsev, ntawm qhov tsis sib xws, nws kuj rhuav tshem qhov sib txuas. Yog tias muaj teeb meem nrog qhov teeb meem no hauv theem tom qab, qhov cuam tshuam yuav ua rau tuag taus;
4. Tsis muaj ib qho piv txwv ntawm kev siv hauv txawv teb chaws. Nrog rau kev paub txog tshuaj lom neeg hauv txawv teb chaws, nws tsis yooj yim sua kom tsis pom cov khoom siv no.
Cov hmoov latex uas yaj tau dua tshiab
1. Cov khoom hmoov latex uas yaj tau dua yog cov hmoov uas yaj tau dua hauv dej, uas yog cov copolymer ntawm ethylene thiab vinyl acetate, nrog polyvinyl cawv ua cov colloid tiv thaiv.
2. VAE redispersible latex hmoov muaj cov khoom tsim zaj duab xis, 50% aqueous kua tsim cov emulsion, thiab tsim cov yas zoo li zaj duab xis tom qab muab tso rau ntawm lub iav rau 24 teev.
3. Cov yeeb yaj kiab uas tsim tau muaj qee qhov kev ywj pheej thiab kev tiv thaiv dej. Nws tuaj yeem ncav cuag tus qauv hauv tebchaws.
4. Cov hmoov latex uas tawg tau dua tshiab muaj kev ua tau zoo: nws muaj peev xwm sib txuas tau zoo, ua tau zoo tshwj xeeb thiab ua tau zoo heev rau kev tiv thaiv dej, muaj zog sib txuas zoo, ua rau cov mortar tsis kam alkali zoo heev, thiab tuaj yeem txhim kho qhov sib txuas thiab lub zog khoov ntawm cov mortar Ntxiv rau qhov plasticity, kev tiv thaiv hnav thiab kev tsim kho, nws muaj kev ywj pheej ntau dua hauv cov mortar tiv thaiv kev tawg.
hmoov resin
1. Cov hmoov roj hmab resin yog ib hom tshiab ntawm kev hloov kho rau cov khoom xws li roj hmab, resin, polymer molecular siab, thiab cov hmoov roj hmab zoo;
2. Cov hmoov roj hmab resin muaj qhov ruaj khov dav dav, tsis yooj yim hnav, tsis yooj yim tawg, qee qhov xav tias flocculent (nws yuav tsum yog cov khoom siv porous zoo li sepiolite), thiab muaj cov hmoov dawb (tab sis muaj ntxhiab tsw zoo ib yam li kerosene);
3. Qee cov hmoov resin ua rau lub rooj tsavxwm xeb, thiab kev tiv thaiv dej tsis zoo.
4. Cov hmoov roj hmab resin tsis kam rau huab cua thiab dej tsawg dua li cov hmoov latex. Kev tiv thaiv huab cua yog qhov teeb meem loj. Thaum tshav ntuj, nws yuav yaj sai sai. Txawm tias nws tsis nyob hauv tshav ntuj los xij, qhov sib txuas yuav ua rau lub qhov av tawg.
5. Cov hmoov roj hmab resin tsis muaj peev xwm pwm tau, tsis hais txog kev ywj pheej. Raws li cov qauv xeem rau cov khoom siv rwb thaiv tsev phab ntsa sab nraud, tsuas yog qhov kev puas tsuaj ntawm cov polystyrene board ua tau raws li tus qauv. Lwm cov cim qhia tsis tau raws li tus qauv;
6. Cov hmoov roj hmab resin tsuas yog siv tau los txuas cov polystyrene boards, tsis yog cov hlaws vitrified thiab cov fireproof boards.
Lub sijhawm tshaj tawm: Lub Rau Hli-02-2023