Cov viscosity qis: 400 feem ntau yog siv rau cov tshuaj mortar uas nws tus kheej leveling, tab sis feem ntau nws yog imported.
Vim li cas: Cov viscosity qis, tsis khaws dej zoo, tab sis cov khoom zoo leveling, cov mortar ceev ceev.
Nruab nrab thiab qis viscosity: 20000-40000 feem ntau yog siv rau cov nplais nplaum, tus neeg sawv cev caulking, cov tshuaj khib tiv thaiv kab nrib pleb, cov tshuaj khib rwb thaiv tsev thermal, thiab lwm yam.
Vim li cas: Ua haujlwm tau zoo, ntxiv dej tsawg dua, thiab cov av nplaum ceev ceev.
1. Cov kev siv tseem ceeb ntawm hydroxypropyl methylcellulose (HPMC) yog dab tsi?
——A: HPMC siv dav hauv cov ntaub ntawv tsim kho, tshuaj pleev xim, cov khoom siv ua los ntawm cov khoom siv av nplaum, tshuaj, khoom noj, ntaub, kev ua liaj ua teb, tshuaj pleev ib ce, luam yeeb thiab lwm yam lag luam. HPMC tuaj yeem muab faib ua: qib kev tsim kho, qib zaub mov thiab qib tshuaj raws li kev siv. Tam sim no, feem ntau cov khoom hauv tsev yog qib kev tsim kho. Hauv qib kev tsim kho, hmoov putty siv ntau heev, kwv yees li 90% yog siv rau hmoov putty, thiab qhov seem yog siv rau cov cement mortar thiab kua nplaum.
2. Muaj pes tsawg hom hydroxypropyl methylcellulose (HPMC)? Lawv siv li cas?
——A: HPMC muaj peev xwm muab faib ua hom tam sim ntawd thiab hom kub yaj. Cov khoom tam sim ntawd tawg sai sai hauv dej txias thiab ploj mus rau hauv dej. Cov kua tsis muaj viscosity lub sijhawm no vim tias HPMC tsuas yog tawg hauv dej thiab tsis yaj tiag tiag. Tom qab li 2 feeb, qhov viscosity ntawm cov kua maj mam nce thiab cov pob tshab viscous colloid tau tsim. Cov khoom kub-soluble tuaj yeem tawg sai sai hauv dej kub thiab ploj mus rau hauv dej kub thaum ntsib dej txias. Thaum qhov kub poob rau qee qhov kub (peb lub tuam txhab cov khoom yog 65 degrees Celsius), qhov viscosity maj mam tshwm sim kom txog thaum cov pob tshab viscous colloid tau tsim. Hom kub yaj tsuas yog siv tau rau hmoov putty thiab mortar. Hauv kua nplaum thiab xim, clumping yuav tshwm sim thiab tsis tuaj yeem siv. Hom tam sim ntawd muaj ntau yam kev siv. Nws tuaj yeem siv rau hmoov putty, mortar, kua nplaum, thiab xim tsis muaj kev tsis sib haum xeeb.
3. Cov txheej txheem yaj ntawm hydroxypropyl methylcellulose (HPMC) yog dab tsi?
——Teb: Txoj kev yaj dej kub: Vim tias HPMC tsis yaj hauv dej kub, HPMC tuaj yeem yaj sib npaug hauv dej kub thaum pib thiab yaj sai tom qab txias. Ob txoj kev ib txwm muaj piav qhia hauv qab no:
1) Muab cov dej kub uas xav tau rau hauv lub thawv thiab ua kom sov txog li 70 ℃. Maj mam ntxiv hydroxypropyl methylcellulose nrog kev sib xyaw qeeb qeeb. Thaum xub thawj HPMC ntab rau ntawm qhov dej, tom qab ntawd maj mam ua cov slurry, thiab txias nrog kev sib xyaw.
2). Ntxiv 1/3 lossis 2/3 ntawm cov dej uas xav tau rau hauv lub thawv, ua kom sov rau 70 ° C, faib HPMC raws li txoj kev hauv 1), thiab npaj cov dej kub slurry; tom qab ntawd ntxiv cov dej txias seem rau hauv cov dej kub slurry. slurry hauv dej, do thiab txias cov sib tov.
Txoj kev sib tov hmoov: Sib tov HPMC hmoov nrog ntau yam khoom hmoov, sib tov kom huv si nrog lub tshuab sib tov, thiab tom qab ntawd ntxiv dej kom yaj. Lub sijhawm no, HPMC tuaj yeem yaj thiab yuav tsis sib sau ua ke, vim tias tsuas muaj me ntsis ntawm HPMC hauv txhua feem. Ces kaum me me. Cov hmoov yaj tam sim ntawd thaum kov dej. —— Cov chaw tsim khoom hmoov thiab mortar putty txais yuav txoj kev no. Hydroxypropyl methylcellulose (HPMC) yog siv los ua cov khoom tuab thiab khaws dej hauv putty hmoov mortar.
4. Yuav ua li cas txiav txim siab qhov zoo ntawm hydroxypropyl methylcellulose (HPMC) yooj yim thiab intuitively?
——Teb: (1) Dawb: Txawm hais tias dawb tsis txiav txim siab seb HPMC puas yooj yim siv, yog tias ntxiv cov tshuaj ci ntsa iab thaum lub sijhawm tsim khoom, nws yuav cuam tshuam rau nws qhov zoo. Txawm li cas los xij, feem ntau cov khoom zoo muaj qhov dawb zoo. (2) Qhov zoo: Qhov zoo ntawm HPMC feem ntau yog 80 mesh thiab 100 mesh, nrog 120 mesh tsawg dua. Feem ntau ntawm HPMC tsim tawm hauv Hebei yog 80 mesh. Qhov zoo dua qhov zoo dua. (3) Kev xa hluav taws xob: Muab hydroxypropyl methylcellulose (HPMC) rau hauv dej kom tsim cov colloid pob tshab, thiab xyuas nws qhov kev xa hluav taws xob. Qhov siab dua qhov kev xa hluav taws xob, qhov zoo dua, qhia tias muaj cov tshuaj tsis yaj tsawg dua sab hauv. Qhov permeability ntawm huab cua ntawm cov reactors ntsug feem ntau zoo dua li ntawm cov reactors kab rov tav, tab sis nws tsis tuaj yeem hais tias qhov zoo ntawm cov reactors ntsug zoo dua li ntawm cov reactors kab rov tav. Muaj ntau yam uas txiav txim siab qhov zoo ntawm cov khoom. (4) Qhov hnyav tshwj xeeb: Qhov loj dua qhov hnyav tshwj xeeb thiab qhov hnyav dua, qhov zoo dua. Qhov hnyav tshwj xeeb feem ntau yog vim muaj cov ntsiab lus hydroxypropyl siab hauv nws. Qhov siab dua cov hydroxypropyl cov ntsiab lus, qhov zoo dua qhov kev khaws cia dej.
5. Cov tshuaj hydroxypropyl methylcellulose (HPMC) hauv cov hmoov putty yog dab tsi?
——Teb: Qhov ntau npaum li cas ntawm HPMC hauv kev siv tiag tiag sib txawv raws li huab cua, kub, qhov zoo ntawm cov tshauv calcium hauv zos, thiab cov mis tshuaj. ty hmoov thiab "qhov zoo uas cov neeg siv khoom xav tau". Feem ntau hais lus, nws yog ntawm 4kg thiab 5kg. Piv txwv li, feem ntau cov hmoov putty hauv Beijing yog 5 kg; feem ntau cov hmoov putty hauv Guizhou yog 5 kg thaum lub caij ntuj sov thiab 4.5 kg thaum lub caij ntuj no;
6. Qhov viscosity tsim nyog ntawm hydroxypropyl methylcellulose (HPMC) yog dab tsi?
——Lus Teb: Cov hmoov putty feem ntau raug nqi 100,000 yuan, thiab cov mortar xav tau ntau dua, yog li 150,000 yuan txaus. Thiab lub luag haujlwm tseem ceeb tshaj plaws ntawm HPMC yog kev khaws dej, ua raws li kev ua kom tuab. Hauv cov hmoov putty, tsuav yog nws muaj kev khaws dej zoo thiab viscosity qis dua (70,000-80,000), nws zoo. Tau kawg, qhov siab dua qhov viscosity, qhov zoo dua qhov kev khaws dej zoo. Thaum viscosity tshaj 100,000, qhov viscosity tsis muaj feem cuam tshuam rau kev khaws dej.
7. Cov cim qhia tseem ceeb ntawm hydroxypropyl methylcellulose (HPMC) yog dab tsi?
——A: Cov ntsiab lus Hydroxypropyl thiab viscosity, feem ntau cov neeg siv txhawj xeeb txog ob qho cim no. Cov ntsiab lus hydroxypropyl siab dua, qhov zoo dua qhov khaws cia dej. Nrog viscosity siab, kev khaws cia dej yog qhov zoo dua (tsis yog kiag li), thiab nrog viscosity siab, nws zoo dua siv hauv cov cement mortar.
8. Cov khoom siv tseem ceeb ntawm hydroxypropyl methylcellulose (HPMC) yog dab tsi?
—— A: Cov khoom siv tseem ceeb ntawm hydroxypropyl methylcellulose (HPMC): paj rwb ua kom zoo, methyl chloride, propylene oxide, lwm yam khoom siv raw suav nrog caustic soda, acid, toluene, isopropyl cawv, thiab lwm yam.
9. Lub luag haujlwm tseem ceeb ntawm HPMC hauv kev siv cov hmoov putty yog dab tsi? Puas muaj cov teebmeem tshuaj lom neeg?
——Teb: HPMC muaj peb lub luag haujlwm tseem ceeb ntawm kev ua kom tuab, khaws dej thiab tsim kho hauv cov hmoov putty. Kev ua kom tuab: Cellulose tuaj yeem ua rau cov tshuaj ncua ntev tuab, ua kom cov tshuaj sib xws thiab tiv taus kev poob qis. Kev khaws dej: Ua kom cov hmoov putty qhuav qeeb qeeb thiab pab cov tshuaj tiv thaiv ntawm cov calcium grey nyob rau hauv qhov kev ua ntawm dej. Kev tsim kho: Cellulose muaj cov nyhuv lubricating thiab tuaj yeem ua rau cov hmoov putty muaj kev ua haujlwm zoo. HPMC tsis koom nrog hauv kev tshuaj lom neeg thiab tsuas yog ua lub luag haujlwm pabcuam. Thaum cov hmoov putty ntxiv rau hauv dej thiab siv rau ntawm phab ntsa, kev tshuaj tiv thaiv yuav tshwm sim. Thaum cov tshuaj tshiab tsim, cov hmoov putty ntawm phab ntsa raug tshem tawm ntawm phab ntsa thiab zom ua hmoov ua ntej siv. Qhov no tsis ua haujlwm vim tias cov tshuaj tshiab (calcium carbonate) tau tsim. ) nce. Cov khoom tseem ceeb ntawm cov hmoov calcium grey yog: sib xyaw ntawm Ca (OH) 2, CaO thiab me me ntawm CaCO3, CaO + H2O = Ca (OH) 2 -Ca (OH) 2 + CO2 = CaCO3↓ + H2O Cov calcium grey yaj hauv dej thiab huab cua CO2 Nyob rau hauv qhov kev ua ntawm calcium carbonate, HPMC tsuas yog khaws dej thiab pab cov calcium grey kom teb zoo dua, thiab tsis koom nrog hauv kev teb nws tus kheej.
10. HPMC yog ib qho non-ionic cellulose ether, yog li ntawd ib qho non-ionic yog dab tsi?
A: Hauv cov lus yooj yim, cov non-ions yog cov tshuaj uas tsis ionize hauv dej. Ionization yog cov txheej txheem uas electrolytes dissociate rau hauv cov ions them nqi txav mus los hauv qee cov kuab tshuaj (piv txwv li, dej, cawv). Piv txwv li, sodium chloride (NaCl), ntsev noj txhua hnub, yaj hauv dej thiab ionizes, tsim cov sodium ions them nqi zoo (Na +) thiab cov chloride ions them nqi tsis zoo (Cl). Ntawd yog, thaum HPMC raug muab tso rau hauv dej, nws tsis dissociate rau hauv cov ions them, tab sis muaj nyob rau hauv daim ntawv molecular.
Lub sijhawm tshaj tawm: Lub Ob Hlis-06-2024