Cellulose rau kev tsim kho yog ib qho khoom siv ntxiv uas siv rau hauv kev tsim kho. Cellulose rau kev tsim kho feem ntau yog siv rau hauv cov hmoov qhuav mortar. Kev ntxiv ntawm cellulose ether yog qis heev, tab sis nws tuaj yeem txhim kho kev ua tau zoo ntawm cov mortar ntub thiab cuam tshuam rau kev tsim kho ntawm mortar. Kev ua tau zoo yuav tsum tau them sai sai rau kev siv. Yog li cov khoom siv lub cev ntawm cellulose rau kev tsim kho yog dab tsi, thiab cov txheej txheem tsim kho ntawm cellulose rau kev tsim kho yog dab tsi? Yog tias koj tsis paub ntau txog cov khoom thiab cov txheej txheem tsim kho ntawm cellulose rau kev tsim kho, cia peb saib ua ke.
Cov khoom siv lub cev ntawm cellulose rau kev tsim kho yog dab tsi:
1. Tsos: hmoov dawb los yog dawb tawm.
2. Qhov loj ntawm cov khoom me me; tus nqi dhau ntawm 100 mesh yog ntau dua 98.5%; tus nqi dhau ntawm 80 mesh yog ntau dua 100%.
3. Kub kub: 280-300 ° C
4. Qhov ceev pom tseeb: 0.25-0.70/cm3 (feem ntau nyob ib ncig ntawm 0.5g/cm3), qhov hnyav tshwj xeeb 1.26-1.31.
5. Kub hloov xim: 190-200 ° C
6. Kev nruj ntawm qhov chaw: 2% cov kua dej yog 42-56dyn / cm.
7. Yaj hauv dej thiab qee cov kuab tshuaj, xws li qhov sib piv ntawm ethanol/dej, propanol/dej, trichloroethane, thiab lwm yam. Cov kua dej yog cov khoom siv rau saum npoo. Muaj pob tshab siab, ua haujlwm ruaj khov, cov lus qhia sib txawv ntawm cov khoom muaj qhov kub gel sib txawv, solubility hloov pauv nrog viscosity, qhov viscosity qis dua, qhov solubility ntau dua, cov lus qhia sib txawv ntawm HPMC muaj qee qhov sib txawv hauv kev ua haujlwm, thiab qhov yaj ntawm HPMC hauv dej tsis cuam tshuam los ntawm tus nqi pH.
8. Nrog rau kev txo qis ntawm cov ntsiab lus methoxyl, qhov taw tes gel nce ntxiv, qhov dej solubility ntawm HPMC txo qis, thiab qhov kev ua haujlwm ntawm qhov chaw kuj txo qis.
9. HPMC kuj muaj cov yam ntxwv ntawm kev ua kom tuab, tiv taus ntsev, hmoov tshauv tsawg, PH ruaj khov, khaws dej, ruaj khov qhov ntev, cov khoom ua yeeb yaj kiab zoo heev, thiab ntau yam kev tiv taus enzyme, kev sib kis thiab kev sib koom ua ke.
Cov txheej txheem tsim kho ntawm cellulose rau kev tsim kho yog dab tsi:
1. Cov kev cai ntawm theem hauv qab: Yog tias qhov kev nplaum ntawm phab ntsa theem hauv qab tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, qhov chaw sab nraud ntawm phab ntsa theem hauv qab yuav tsum tau ntxuav kom huv si, thiab yuav tsum siv tus neeg sawv cev sib txuas kom nce lub peev xwm khaws dej ntawm phab ntsa thiab yog li ua kom muaj zog sib txuas ntawm phab ntsa thiab polystyrene board.
2. Kab tswj kev ua si: nthuav cov kab tswj kab rov tav thiab ntsug ntawm cov qhov rooj thiab qhov rai sab nraud, cov pob qij txha nthuav dav, cov pob qij txha kho kom zoo nkauj, thiab lwm yam rau ntawm phab ntsa.
3. Dai cov kab siv: Dai cov hlau siv ntsug ntawm cov ces kaum loj (cov ces kaum sab nraud, cov ces kaum sab hauv) ntawm phab ntsa sab nraud ntawm lub tsev thiab lwm qhov chaw tsim nyog, thiab dai cov kab kab rov tav ntawm qhov chaw tsim nyog ntawm txhua pem teb kom tswj tau qhov ntsug thiab qhov tiaj tiaj ntawm cov polystyrene board.
4. Kev npaj cov tshuaj nplaum polymer: Cov khoom siv no yog cov tshuaj nplaum polymer uas tau npaj tseg, uas yuav tsum tau siv raws li qhov yuav tsum tau ua ntawm cov khoom no, tsis tas ntxiv lwm yam khoom siv, xws li cement, xuab zeb thiab lwm yam polymers.
5. Muab daim ntaub thaiv qhov ntxeev: Txhua qhov chaw uas raug muab tso rau ntawm sab ntawm daim ntawv polystyrene uas tau muab lo rau (xws li cov pob qij txha nthuav dav, cov pob qij txha hauv tsev, cov pob qij txha kub thiab lwm yam xov ntawm ob sab, qhov rooj thiab qhov rai) yuav tsum tau kho nrog daim ntaub thaiv.
6. Cov ntawv nplaum polystyrene: Nco ntsoov tias qhov txiav yog perpendicular rau qhov chaw ntawm lub rooj tsavxwm. Qhov sib txawv ntawm qhov loj me yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm cov cai, thiab cov pob qij txha ntawm cov ntawv nplaum polystyrene yuav tsum tsis txhob nyob ntawm plaub lub ces kaum ntawm lub qhov rooj thiab qhov rai.
7. Kev kho cov anchors: tus naj npawb ntawm cov anchors yog ntau dua 2 ib square meter (nce mus rau ntau dua 4 rau cov tsev siab).
8. Npaj cov tshuaj nplaum plastering: Npaj cov tshuaj nplaum plastering raws li qhov sib piv uas lub chaw tsim khoom muab, kom ua tiav qhov ntsuas tseeb, kev sib xyaw ua ke, thiab txawm tias sib tov.
Ntawm cov hom cellulose siv rau hauv kev tsim kho, cov cellulose ether siv los ntawm hydroxypropyl methylcellulose hauv cov hmoov qhuav mortar feem ntau yog hydroxypropyl methylcellulose ether. Hydroxypropyl methylcellulose feem ntau ua lub luag haujlwm ntawm kev khaws dej, ua kom tuab thiab txhim kho kev ua haujlwm ntawm kev tsim kho hauv cov hmoov qhuav mortar.
Lub sijhawm tshaj tawm: Tsib Hlis-10-2023