Additives nyob rau hauv Mortar - Cellulose Ether
Cov khoom tseem ceeb ntawm lub tsev mortar
| gel qhov system | Ua ke |
| cement | Ordinary aggregate |
| Portland cement | Quartz xuab zeb |
| Slag Portland Cement | limestone |
| blast furnace slag cement | dolomite |
| txiv qaub | hniav sib sau ua ke |
| slaked txiv qaub | Calcite |
| hydraulic txiv qaub | marble |
| Mica | |
| plaster | lub teeb aggregate |
| β-, α- | Perlite |
| Hemihydrate gypsum | Vermiculite |
| Anhydrite | ua npuas ncauj iav |
| Ceramsite | |
| puv |
Kev sib xyaw
Cellulose ether,Redispersible latex hmoov, huab cua-entraining tus neeg saib xyuas, pigment, coagulant, retarder, plasticizer, thickener, dej repellent ...
natural resource cellulose
| qhov chaw | Cov ntsiab lus fiber ntau | |
| (bagasse) | 35-45 ib | |
| (straw) | 40-50 | |
| (ntoo) | 40-50 | |
| (xyoob) | 40 x55 | |
| (jute) | 60 x65 | |
| (flax) | 70 x75 | |
| (ramie) | 70 x75 | |
| (kapok) | 70 x75 | |
| (hemp) | 70 x80 | |
| (paj rwb) | 90x95 ua | |
Cellulose ether
Cellulose ethers xa mus rau cellulose derivatives nyob rau hauv uas ib co los yog tag nrho cov hydroxyl pawg ntawm cellulose yog hloov los ntawm ether pawg.
Hom cellulose ethers hauv kev tsim cov khoom siv
HEC: Hydroxyethyl Cellulose Ether; Hydroxyethyl Cellulose
MC: methyl cellulose ether; Methyl Cellulose
CMC: Sodium Carboxymethyl Cellulose; Carboxyl Methyl Cellulose
MHEC: Methyl Hydroxyethyl Cellulose Ether; Methyl Hydroxyethyl Cellulose
MHPC: Methyl Hydroxypropyl Cellulose Ether; Methyl Hydroxypropyl Cellulose
Yuav ntsuas qhov zoo ntawm cellulose ether li cas
|
qhov project | kev xav tau | ||||||
| MC | HPMC | HEMC | HEC | ||||
| E | F | G | K | ||||
| Sab nrauv | Dawb los yog lub teeb daj hmoov, tsis pom tseeb coarse hais thiab impurities | ||||||
| Kev ua tau zoo% | 8.0 ib | ||||||
| Poob ntawm ziab% | 6.0 | ||||||
| Sulfated tshauv% | 2.5 | ||||||
| viscosity | Nominal viscosity tus nqi (-10%, + 20%) | ||||||
| Tus nqi PH | 5.0-9.0 Nws | ||||||
| Kev xa tawm% | 80 | ||||||
| gel kub | 50 ~ 55 | 58-64 : kuv | 62-68 : kuv | 68-75 : kuv | 70-90 ib | ≥75 | —— |
| Methoxy cov ntsiab lus% | 27-32 : kuv | 28-30 Nws | 27-30 Nws | 16.5-20.5 Nws | 19-24 : kuv | 24.5-28.5 Nws | —— |
| Hydroxypropoxy cov ntsiab lus% | — | 7.0-12.0 Nws | 4.0 ~ 7.5 hli | 23.0-32.0 Nws | 4.0-12.0 Nws | — | |
| Hydroxyethoxy cov ntsiab lus% | — | — | — | — | — | 1.5-9.5 Nws | |
Cov yam ntxwv ntawm cellulose ether nyob rau hauv mortar
| tuav dej | ||
| cuam tshuam lub sijhawm sib txuas | MC | tuab |
| txhim khu adhesion |
Lub ntsiab cuam tshuam ntawm MC dej tuav
Kev tuav dej
| viscosity | Tus nqi ntxiv | qhov loj ntawm granule |
| siab viscosity Qhov siab dua tus nqi tuav dej | Qhov siab dua tus nqi ntxiv Qhov siab dua tus nqi tuav dej | Qhov zoo tshaj qhov hais Qhov nrawm nrawm dua, qhov ceev cov dej khaws cia |
Cov nyhuv ntawm MC ntawm Mortar Consistency
Tswj kev sib raug zoo
| degree ntawm kev hloov kho | qhov loj ntawm granule | viscosity |
| kev ua haujlwm zoo tshaj plaws Qhov siab dua qhov kev hloov kho Qhov zoo dua cov nyhuv anti-slip siv tau ntau dua | Qhov zoo tshaj qhov hais Tau qhov sib xws sai dua | Rau cov khoom tsis hloov pauv: Qhov siab dua qhov viscosity, qhov ntau dua qhov ntxiv Qhov tuab zoo dua |
Post lub sij hawm: Feb-06-2023