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1. What is the appropriate viscosity of HPMC? ——Answer: Generally, 100,000 yuan is enough for putty powder. The requirements for mortar are higher, and 150,000 yuan is required for easy use. Moreover, the most important function of HPMC is water retention, followed by thickening. In the putty pow...Read more »
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Abstract: The application of domestic hydroxypropyl methylcellulose instead of imported one to the production of PVC with high polymerization degree was introduced． The effects of two kinds of hydroxypropyl methylcellulose on the properties of PVC with high polymerization degree were investigate...Read more »
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When it comes to Redispersible polymer powder, I believe that all my friends are very concerned about this issue. Because in the process of specific project construction, the product has a very wide range of applications, and practice has proved that its performance is reliable. Under the guidanc...Read more »
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Cellulose ether derivatives have been widely used in food industry for a long time. Physical modification of cellulose can regulate the rheological properties, hydration and microstructure properties of the system. The five important functions of chemically modified cellulose in food are rheology...Read more »
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Introduction to Cotton and Cellulose Cotton, a natural fiber derived from the cotton plant, is primarily composed of cellulose. Cellulose, a complex carbohydrate, is the main constituent of the cell walls in plants, providing structural support. Extracting pure cellulose from cotton involves sepa...Read more »
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Processing cellulose involves various methods to extract and refine it from its natural sources, primarily plants. Cellulose, a polysaccharide, forms the structural component of cell walls in plants and is the most abundant organic polymer on Earth. Its processing is crucial in industries ranging...Read more »
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In the composition of dry powder mortar, cellulose ether is an important additive with a relatively low addition amount, but it can significantly improve the mixing and construction performance of mortar. To put it simply, almost all the wet mixing properties of mortar that can be seen with the n...Read more »
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This article mainly chooses MMA, BA, AA as monomers, and discusses the factors of graft polymerization with them, such as the addition sequence, addition amount and reaction temperature of the initiator and each monomer, and finds out the best graft polymerization process conditions. The rubber i...Read more »
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Hydroxypropyl cellulose, a pharmaceutical excipient, is divided into low-substituted hydroxypropyl cellulose (L-HPC) and high-substituted hydroxypropyl cellulose (H-HPC) according to the content of its substituent hydroxypropoxy. L-HPC swells into a colloidal solution in water, has the properties...Read more »
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1. Theoretical basis It can be seen from the structural formula that the hydrogen (Na+) on CMC is very easy to dissociate in aqueous solution (generally exists in the form of sodium salt), so CMC exists in the form of anion in aqueous solution, that is, it has a negative charge and is amphoteric....Read more »
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Hydroxyethyl methyl cellulose HEMC can be used as colloid protective agent, emulsifier and dispersant due to its surface active function in aqueous solution. An example of its application is as follows: The effect of hydroxyethyl methyl cellulose on the properties of cement. Hydroxyethyl methylce...Read more »
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anti-crack mortar Anti-crack mortar (anti-crack mortar), which is made of anti-crack agent made of polymer emulsion and admixture, cement and sand mixed with water in a certain proportion, can satisfy a certain deformation without cracking, and cooperate with the grid Cloth works better. Construc...Read more »