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1. Selection of mud material (1) Clay: Use high-quality bentonite, and its technical requirements are as follows: 1. Particle size: above 200 mesh. 2. Moisture content: not more than 10% 3. Pulping rate: not less than 10m3/ton. 4. Water loss: no more than 20ml/min. (2) Water selection: The water...Read more »
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1. What are the dissolution methods of hydroxypropyl methylcellulose HPMC? Answer: Hot water dissolution method: Since HPMC does not dissolve in hot water, HPMC can be evenly dispersed in hot water at the initial stage, and then quickly dissolves when cooled. Two typical methods are described as ...Read more »
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Hydroxypropyl methylcellulose (HPMC) is a non-ionic cellulose ether made from natural polymer material cellulose through a series of chemical processes. They are an odorless, tasteless and nontoxic white powder that swells into a clear or slightly cloudy colloidal solution in cold water. It has t...Read more »
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1. The main function of cellulose ether In ready-mixed mortar, cellulose ether is a main additive that is added in a very low amount but can significantly improve the performance of wet mortar and affect the construction performance of mortar. 2. Types of cellulose ethers The production of cellul...Read more »
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1. Methylcellulose (MC) After the refined cotton is treated with alkali, cellulose ether is produced through a series of reactions with methane chloride as etherification agent. Generally, the degree of substitution is 1.6~2.0, and the solubility is also different with different degrees of substi...Read more »
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Hydroxypropyl methylcellulose in dry powder mortar, the addition of cellulose ether is very low, but it can significantly improve the performance of wet mortar, and it is a main additive that affects the construction performance of mortar. Hydroxypropyl methylcellulose The cellulose ether used in...Read more »
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1 Introduction Cement-based tile adhesive is currently the largest application of special dry-mixed mortar, which is composed of cement as the main cementitious material and supplemented by graded aggregates, water-retaining agents, early strength agents, latex powder and other organic or inorgan...Read more »
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1. The main application of cellulose ether HPMC? HPMC is widely used in construction mortar, water-based paint, synthetic resin, ceramics, medicine, food, textile, cosmetics, tobacco, and other industries. It is divided into construction grade, food grade, pharmaceutical grade, PVC industrial gra...Read more »
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During drilling, drilling and workover of oil and natural gas, the well wall is prone to water loss, causing changes in the well diameter and collapse, so that the project cannot be carried out normally, or even abandoned halfway. Therefore, it is necessary to adjust the physical parameters of th...Read more »
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01 Hydroxypropyl Methyl Cellulose 1. Cement mortar: Improve the dispersion of cement-sand, greatly improve the plasticity and water retention of mortar, have an effect on preventing cracks, and enhance the strength of cement. 2. Tile cement: improve the plasticity and water retention of pressed t...Read more »
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01. Properties of sodium carboxymethylcellulose Sodium carboxymethyl cellulose is an anionic polymer electrolyte. The degree of substitution of commercial CMC ranges from 0.4 to 1.2. Depending on the purity, the appearance is white or off-white powder. 1. The viscosity of the solution The viscosi...Read more »
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1. Brief Introduction of Carboxymethyl Cellulose English name: Carboxyl methyl Cellulose Abbreviation: CMC The molecular formula is variable: [C6H7O2(OH)2CH2COONa]n Appearance: white or light yellow fibrous granular powder. Water solubility: easily soluble in water, forming a transparent viscous ...Read more »