- Contact Person : Ms. Wang Jane
- Company Name : Dezhou Jinyue Chemical Co., Ltd.
- Tel : 86-0534-5819206
- Fax : 86-0534-5819206
- Address : Shandong,DeZhou,Ningjin Economic Development Zone,Ningjin,ShanDong Province.China
- Country/Region : China
- Zip : 253400
Related Product Searches:HPMC,High Quality,HPMC, cellulose
building grade biochemical HPMC
Water retention
building grade biochemical HPMC avoids the water infiltrating the wall. A certain amount of water remaining in the mortar, spare cement a longer time for hydration, water retention is proportional to the viscosity of cellulose ether in the mortar, the higher of viscosity, the better of water retention. Once the moisture factor increase, the water retention will decrease. Because of the same amount of methyl cellulose solution, the increased water cause the viscosity decline. Increasing water retention would lead to extend the curing time of constructed mortar.Reducing viscosity and improving the construction For cement mortar, we have developed a special grade of methyl cellulose .They can improve the construction of mortar, and reduce the viscosity. The lower viscosity grades used, the lower viscosity of mortar, so obtained better construction. However, because of the low water retentivity, more low viscosity grade
products are needed.
Wetting ability
All air entraining agent has the role of wetting ability to reduce its surface tension and help the powder in mortar disperse when mixed with water.
Sag Resistance
Good sag resistance mortar to the thick layer construction means the construction of mortar without sagging or the danger of down flow. Cellulose can improve sag resistance, especially the newly developed methyl cellulose can provide a better sag resistance of mortar.
Bubble contentHigh bubble content results a better rate of output and construction of mortar and reduce cracking. It also cuts down the intensity value, causes a "liquid" phenomenon. Bubble content usually depends on the mixing time.
All the product viscosity define cellulose ether solution concentration, low viscosity products are available that make up the 10-15% concentration, the concentration standard limit of high viscosity products is 2-3%.
Delayed dissolving type (surface treatment) Standard type (non-surface treatment) | surface treated products can be added directly in the water system, as a general stir well dispersed, and dissolved when in alkaline(composition viscosity).The surface treated cellulose ether products can be prepared up to 10% density aqueous solution of slurry. The surface treatment of cellulose ether products directly into the lye will lead to a failure of surface treatment and coagulation. |
Dispersed in hot water Non-surface treated products are hot water insoluble and cold water soluble, can be well dispersed in hot water more than 80°C. Usually take the following measures: taking 1/5-1/3 of the required water and heated to 80 ° c or more, stirring slowly and adding products, so that all particles of products are fully soaked, and then add the residual amount of cold water or ice water, keep stirring to the appropriate temperature, cooling can be completely dissolved. | |
dispersion in organic solvent Using organic solvents, such as ethanol, ethylene glycol prior disperse or moist products (Note HPMC granules completely wet) and products of organic solvent after wetting joined in cold water or add cold water to wet products, is well dissolved. | |
Dry blunging dispersion products prior to the addition of water, effectively distributed through dry worse, is used to contain other component powder formula, so other powder products should keep methyl cellulose ether particles dispersed. Then add water to dissolve rather than cohesion. |
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