Why Mortar with Hydroxypropyl Methylcellulose ?(2)

By |2022-05-18T02:14:39+00:00May 18th, 2022|Industry News|

II. Traditional water retention methods The traditional solution is to pour water onto the base, but this is unlikely to ensure that the base is evenly moistened in the right amount. The ideal hydration target for cement mortar on the substrate is that the hydration products of the cement accompany the process of water absorption

Why mortar should have hydroxypropyl methylcellulose added?(1)

By |2022-05-18T02:11:23+00:00May 18th, 2022|Industry News|

Hydroxypropyl methylcellulose has an important role in mortars, and that is water retention. Mortars with poor water retention are prone to segregation and water loss during transport. When laid on the surface of porous materials, most of the water is easily absorbed and the properties of the mortar are altered. This affects the normal hardening

Types of cellulose ethers and mechanism of action (III)

By |2022-05-17T01:41:13+00:00May 17th, 2022|Industry News|

Following the previous article, we continue to introduce HEC and CMC in the classification of cellulose ethers. 1.1.3 Hydroxyethyl cellulose (HEC) It is made from refined cotton treated with alkali and reacted with ethylene oxide as etherizing agent in the presence of acetone. Its substitution degree is generally 1.5~2.0. It has strong hydrophilicity and is

Types of cellulose ethers and mechanism of action (II)

By |2022-05-17T01:29:54+00:00May 17th, 2022|Industry News|

The previous article introduced the mechanism of action of cellulose ethers, and the next article will introduce some basic cellulose ether classifications. 1.1.1 Methyl cellulose (MC) molecular formula \[C6H7O2(OH)3-h(OCH3)n\]x Refined cotton is treated with alkali and made into cellulose ether after a series of reactions with methane chloride as the etherizing agent. The general degree

Types of cellulose ethers and mechanism of action (I)

By |2022-05-17T01:07:28+00:00May 17th, 2022|Industry News|

Water retention agent is the key admixture to improve the water retention performance of dry-mixed mortar, and is also one of the key admixtures to determine the cost of dry-mixed mortar materials, and its main source is cellulose ether. Hydroxypropyl methyl cellulose ether, hydroxypropyl methyl cellulose is a general term for the reaction of alkali

Thickening and thixotropy of cellulose ether

By |2022-05-10T06:22:28+00:00May 10th, 2022|Industry News|

The second effect of cellulose ether - thickening depends on: cellulose ether polymerization degree, solution concentration, shear rate, temperature and other conditions. The gelation property of solution is unique to alkyl cellulose and its modified derivatives. Gelation characteristics are related to degree of substitution, solution concentration and additives. For hydroxyl alkyl modified derivatives, gel properties

Ash content and quality of hydroxypropyl methylcellulose

By |2022-05-06T07:44:39+00:00May 6th, 2022|Industry News|

What is the ash content of hydroxypropyl methylcellulose? Ash, also known as scorch residue, is simply understood to be the impurities contained in the product. It occurs naturally during the production process. After the product has come out of the etherification reactor, it enters the neutralisation kettle, where the pH value is first adjusted to

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