The relationship between the consistency of cement slurry and the content of hydroxypropyl methyl cellulose

There is also an excellent linear relationship between the consistency of cement slurry and the content of hydroxypropyl methylcellulose, and hydroxypropyl methylcellulose can significantly increase the viscosity of mortar. The more significant the range, the more pronounced the effect; the high density of hydroxypropyl methylcellulose aqueous solution has high thixotropy, which is also a substantial characteristic of hydroxypropyl methylcellulose. Aqueous solutions of MC polymers generally have

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Thickening and thixotropy of hydroxypropyl methyl cellulose

The second action of the hydroxypropyl methylcellulose-thickening effect depends on hydroxypropyl methylcellulose polymerization degree, solution concentration, shear rate, temperature and other conditions. The gelation properties of solutions are unique to alkyl cellulose and its modified derivatives. Gelation characteristics are related to the degree of substitution, solution concentration and additive. For hydroxyl-alkyl-modified products, gel properties are also associated with the degree of

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Water retention of hydroxypropyl methyl cellulose

In the production of building materials, especially dry mixed mortar, hydroxypropyl methylcellulose plays an irreplaceable role, especially in the production of special mortar (modified mortar), which is an indispensable and essential part. The critical role of water-soluble hydroxypropyl methyl cellulose in mortar is mainly in three aspects: excellent water retention ability, the influence of mortar consistency and thixotropy, and the third is interaction with cement. The water-retaining effect

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We're going to talk about hydroxypropyl methyl cellulose

Hydroxypropyl methylcellulose is a synthetic polymer made of natural cellulose by chemical modification. Hydroxypropyl methylcellulose is a natural cellulose derivative; hydroxypropyl methylcellulose production and synthetic polymer are different; its primary material is cellulose, a natural polymer compound. Because of the unique structure of natural cellulose, cellulose cannot react with an etherifying agent. But after the treatment of the swelling agent, the strong hydrogen bond between and w

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Hydroxypropyl methylcellulose (3cps)

PhEur 2002 defines hydroxypropyl methylcellulose as partially O-methylated and partially O- (2-hydroxypropyl) cellulose. Market products have different viscosity and different degrees of substitution of various levels of products. Grade with numerical representation is its 2% aqueous solution at 20℃ apparent density in mPas. USP 25 Models in which the generic name is followed by a four-digit number indicating the substituent content of hydroxypropyl methylcellulose. For example, hydroxypropyl me

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Natural polymer material hydroxypropyl methyl cellulose

What is hydroxypropyl methyl cellulose?Hydroxypropyl methyl cellulose is a natural polymer material, rich in resources, non-toxic, harmless, and low cost, which is the nature of abundant renewable resources. In medicine, hydroxypropyl methyl cellulose can be used as tablet film coating material; its film formation is good and can be used as drug positioning release excipients. In addition, the main component of hydroxypropyl methylcellulose eye drops commonly used in the clinic is hydroxypropyl

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Pharmacopoeia standard for hydroxypropyl methylcellulose

Source and content: This product is 2-hydroxypropyl ether methylcellulose. Hydroxypropyl methylcellulose is divided into four substitution types based on the range of methoxy and hydroxypropyl groups, namely 1828, 2208, 2906, and 2910. According to the calculation of dried products, the content of each substituted methoxy group (- OCH3) and hydroxypropyl group (- OCH2CHOHCH3) should comply with the regulations in the attached table. Character: This product is a white or almost white fibrous or g

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The daily use of hydroxypropyl methylcellulose

Cosmetics industry: Shampoos: Improve the viscosity and bubble stability of shampoos, detergents, and detergents. Toothpaste: Improves the fluidity of toothpaste. Canned citrus fruits in the food industry: To prevent whitening and deterioration caused by the decomposition of citrus glycosides during storage and achieve preservation effect. Cold food fruit products: added to fruit dew and ice to enhance the taste. Seasoning: An emulsifying stabilizer or thickener for seasoning and tomato sauce. H

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Specific Industry Applications of Hydroxypropyl Methylcellulose

Construction industry: Cement mortar: improves the dispersibility of cement sand, significantly improves the plasticity and water retention of mortar, has an effect on preventing cracks, and can enhance the strength of cement. Ceramic tile cement: Improve the plasticity and water retention of pressed ceramic tile mortar, enhance the bonding strength of ceramic tiles, and prevent powdering. Coating of refractory materials such as asbestos: used as a suspension stabilizer, flow improver, and enhan

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The Use of Hydroxypropyl Methylcellulose

In the textile industry, you were used as a thickener, dispersant, binder, excipient, oil-resistant coating, filler, emulsifier, and stabilizer. It is also widely used in synthetic resins, petrochemicals, ceramics, papermaking, leather, pharmaceuticals, food, and cosmetics. Construction industry: As a water-retaining agent and retarder for cement mortar, it makes the cannon pumpable. Applying mortar, gypsum, putty powder, or other building materials as adhesives improves the coating performance

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Physicochemical properties of hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose (HPMC) is an organic macromolecule compound commonly used as a water-soluble film-coating agent with good chemical stability. Appearance: White or almost white fibrous or granular powder Stability: Solid is flammable and incompatible with potent oxidizing agents. Particle size; 100 mesh pass rate greater than 98.5%; The pass rate of 80 mesh is 100%. Particular specifications with a particle size of 40-60 mesh. Carbonization temperature: 280-300 ℃. Apparent density:

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Organic polymer compound hydroxypropyl methylcellulose

What is hydroxypropyl methylcellulose?Hydroxypropyl methylcellulose, also known as hydroxypropylmethylcellulose, is nonionic cellulose mixed ether. It is a semi-synthetic, inert, viscoelastic polymer commonly used as a lubricant in ophthalmology or as an adjunct or excipient in oral drugs. PhEur 2002 defined hydroxypropyl methylcellulose as partially O-methylated and partially O-(2-hydroxypropylated) cellulose. Various grades of products with different viscosities and substitutions are available

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