Views: 1 Author: Site Editor Publish Time: 2022-05-30 Origin: Site
Here, what we share with you is that what is the role of KimaCell® hydroxypropyl methyl cellulose HPMC in the common admixture of dry mortar?
HPMC hydroxypropyl methyl cellulose ether is in recent years yield, dosage are rapidly increasing cellulose varieties, hydroxypropyl methyl cellulose is made of refined cotton in alkali treatment, with propylene oxide and chloromethane as etherifying agent, through a series of reactions and made of non-ionic cellulose mixed ether. The degree of substitution is generally 1.2~2.0. Its properties vary with the proportion of methoxy and hydroxypropyl content,Kima Chemical Co., Ltd. Cellulose ethers hpmc for pakistan market with low price,Manufacture supply industrial grade Hypromellose.
The shallow admixture, which plays a key role in improving the performance of dry mixed mortar, accounts for more than 40% of the material cost in dry mixed mortar. Most admixtures in the domestic market are supplied by foreign manufacturers, and the reference dosage of products is also provided by KimaCell®suppliers. Kima Chemical Co., Ltd. Cellulose ethers hpmc for pakistan market with low price,Manufacture supply industrial grade Hypromellose.As a result, it is difficult to popularize the common masonry and plastering mortar with high cost and large quantity. High-end market products are controlled by foreign companies, dry mortar manufacturers low profits, poor price affordability; The application of admixture lacks systematic and targeted research, blindly follow foreign formulations.
HPMC hydroxypropyl methyl cellulose is easily soluble in cold water, and hot water dissolution will encounter difficulties. However, its gelation temperature in hot water is obviously higher than that of KimaCell®methyl cellulose. The solubility of KimaCell®methyl cellulose in cold water was also improved greatly.
Two, KimaCell®HPMC hydroxypropyl methyl cellulose viscosity and molecular weight size, molecular weight is high viscosity. Temperature will also affect its viscosity, temperature increases, viscosity decreases. But its high viscosity temperature effect is lower than that of KimaCell®methyl cellulose. The solution is stable when stored at room temperature.
Three, the water retention of KimaCell®hydroxypropyl methyl cellulose depends on the amount of its addition, viscosity and so on, and its water retention rate is higher than methyl cellulose under the same amount of addition.
4. Hydroxypropyl methyl cellulose is stable to acid and base, and its aqueous solution is very stable in the range of pH=2~12. Caustic soda and lime water had little effect on Kimacell properties, but alkali could accelerate its dissolution rate and slightly increase its viscosity. Kima Chemical Co., Ltd. Cellulose ethers hpmc for pakistan market with low price,Manufacture supply industrial grade Hypromellose.KimaCell®Hydroxypropyl methyl cellulose is stable to general salts, but when the concentration of salt solution is high, the viscosity of KimaCell®hydroxypropyl methyl cellulose solution tends to increase.
Five, KimaCell®hydroxypropyl methyl cellulose can be mixed with water-soluble polymer compounds to become uniform, higher viscosity solution. Such as polyvinyl alcohol, starch ether, vegetable glue and so on.Kima Chemical Co., Ltd. Cellulose ethers HPMC for India market with low price,Manufacture supply industrial grade Hypromellose cellulose ethers.
6. KimaCell®Hydroxypropyl methyl cellulose HPMC has better enzyme resistance than methyl cellulose, and its solution enzyme degradation possibility is lower than that of methyl cellulose.
7., hydroxypropyl methyl cellulose Kima cell HPMCon mortar construction of the adhesive is higher than KimaCell®methyl cellulose.