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Self-leveling mortar can rely on its own weight to form a flat, smooth and strong foundation on the substrate for laying or bonding other materials. At the same time, it can carry out large-scale and efficient construction. Therefore, high fluidity is a very significant aspect of self-leveling mo...Read more »
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1. cellulose ether – cellulose ether predecessor Cellulose ether is the most abundant polysaccharide in the world today. The main sources of natural cellulose are cotton, trees, aquatic plants, grass and so on. Cotton contains 92-95% cellulose; Flax contains about 80% cellulose; Wood contai...Read more »
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In ready-mixed mortar, the addition amount 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. Reasonable selection of cellulose ethers of different varieties, different visc...Read more »
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Hydroxypropyl methylcellulose is a kind of non-ionic cellulose mixed ether. Unlike ionic methyl carboxymethyl cellulose mixed ether, it does not react with heavy metals. Due to the different ratios of methoxyl content and hydroxypropyl content in hydroxypropyl methylcellulose and different viscos...Read more »
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Hydroxypropyl methylcellulose (INN name: Hypromellose), also simplified as hypromellose (hydroxypropyl methylcellulose, abbreviated as HPMC), is a variety of nonionic cellulose mixed ethers. It is a semi-synthetic, inactive, viscoelastic polymer commonly used as a lubricant in ophthalmology, or a...Read more »
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At present, the mature raw materials of plant capsules are mainly hydroxypropyl methylcellulose (HPMC) and pullulan, and hydroxypropyl starch is also used as raw materials. Since the beginning of the 2010s, HPMC has been applied in the Chinese plant capsule manufacturing industry, and based on it...Read more »
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test methods Method name: hypromellose—determination of hydroxypropoxy group—determination of hydroxypropoxy group Scope of application: This method uses the hydroxypropoxy determination method to determine the content of hydroxypropoxy in hypromellose. This method is applicable to hy...Read more »
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Due to the structural differences in market demand for cellulose ether, companies with different strengths and weaknesses can coexist. In view of the obvious structural differentiation of market demand, domestic cellulose ether manufacturers have adopted differentiated competition strategies base...Read more »
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Development status of HPMC production technology and process of hydroxypropyl methyl cellulose in China Hydroxypropyl methyl cellulose HPMC to the current domestic production is given priority to with liquid phase method technology, this technology is represented by wuxi chemical industry researc...Read more »
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There are many kinds of plant raw materials, but their basic composition has little difference, mainly composed of sugar and non-sugar. . Different plant raw materials have different contents of each component. The following briefly introduces the three main components of plant raw materials: Cel...Read more »
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Coating additives are used in a small amount in coatings, but they can significantly improve the performance of coatings, and have become an indispensable part of coatings. Thickener is a kind of rheological additive, which can not only thicken the coating and prevent sagging during construction,...Read more »
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01 Slow dry and stick back After the paint is brushed, the paint film does not dry for more than the specified time, which is called slow drying. If the paint film has been formed, but there is still a sticky finger phenomenon, it is called back sticking. Causes: 1. The paint film applied by brus...Read more »