Hydroxyethyl methyl cellulose (HEMC) is one of the most popular cellulose ethers.
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Hydroxypropyl methylcellulose (HPMC) and hydroxyethyl methylcellulose (HEMC) are widely used building materials, when applied to gypsum-based plastering, it has the following characteristics:Water Retention: Retains in the mortar, allowing the gypsum to fully set.
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HPMC is a non-inorganic cellulose ether synthesized by a series of organic chemical methods.Appearance is White to slightly off-white fibrous or granular powder.
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Cellulose ethers are often used as water-retaining agents in (desulfurized) gypsum mortar. Years of research have shown that,water-retaining agent has a very important influence on the gypsum quality and anti-plastering layer performance of plastering gypsum.
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The hydroxypropyl methyl cellulose ether hpmc is the essential condition for thin bed technology for tile adhesive.Can be used as retarder, water retention agent, thickener and binder.For example, the performance of mortar is very different between natural sand and machine-made sand. Cellulose ether for ordinary dry mixed mortar shall have the following characteristics:Structural formula (n~2)/2 OR=-OH、-OCH3、-[OCH2CH(CH3)]nOH or-[OCH2CH(CH3)]OCH3 Specification of non modified products Type ItemHPMCPD
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Self leveling mortar includes cement~based self leveling mortar, self leveling mortar, leveling mortar, etc. it is a dry mixed powder material composed of a variety of active ingredients, which can be used by mixing water on site. The high leveled base surface can be obtained after being slightly expanded by the scraper.
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As one of the most important raw materials in tile adhesive, cellulose ether plays a crucial role in the performance of tile adhesive. The role of cellulose ether in tile adhesive is mainly manifested in thickening, water retention, delaying cement hydration, improving workability, improving anti-slip performance and rheology, plasticity and lubricating properties, extending open time, enhancing bond strength, etc.
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HEMC are often used as water-retaining agents in (desulfurized) gypsum mortar. Years of research have shown that,water-retaining agent has a very important influence on the gypsum quality and anti-plastering layer performance of plastering gypsum.
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Hydroxyethyl methyl cellulose (HEMC) is widely used in water-based latex coatings, building construction and building materials, printing ink, oil drilling and other aspects, play the role of thickening water retention, improve the construction, used in wet and dry mortar series products. Its properties are similar to methyl cellulose, but because of the presence of hydroxyethyl makes hydroxyethyl cellulose more soluble in water, the solution is more compatible with salt, and has a higher condensation temperature.Structural formula (n~2)/2 OR=-OH、-OCH3、-[OCH2CH(CH3)]n
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Tile cement mortar is used to attach tiles on concrete or block walls. It comprises cement, sand, limestone, HPMC and various additives, ready to be mixed with water before use.Normal tile cement is usually economic mortar which has lower content of cement and RDP (Redispersible polymer powder) than standard tile cement.
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Hydroxypropyl methyl cellulose (HPMC) is a non-ionic cellulose ether polymer based on cellulose, a natural polymer derived from refine cotton linter,which are offered as free flowing powder.According to the degree of substitution and modification of substituent, they have different chemical properties and benefits after alkalization and etherification reactions with Sodium hydroxide,Cholromethane,and propylene epoxide.Structural formula (n~2)/2 OR=-OH、-OCH3、-[OCH2CH(CH3)]nOH or-[OCH2CH(CH3)]OCH3HEMC Main applicationHydroxyethyl methyl cellulose (HEMC) is a non-ionic ce
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Hydroxypropyl methyl cellulose (HPMC) is a kind of non-ionic cellulose ether which is made by a series of chemical processing. They have water solubility, water retention, non-ionic type, PH stability, surface activity, temperature reversible gelatinization, thickening, bonding, film forming, lubricity and mold resistance and other properties. Therefore, it is widely used in thickening, cementification, suspension, dispersion stability, water retention, improve workability and other occasions.Structural formula OR=-OH、-OCH3、-[OCH2CH(CH3)]nOH or-[OCH2CH(CH3)]OCH3
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Self leveling mortar includes cement~based self leveling mortar, self leveling mortar, leveling mortar, etc. it is a dry mixed powder material composed of a variety of active ingredients, which can be used by mixing water on site. The high leveled base surface can be obtained after being slightly expanded by the scraper.
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Cellulose ether, especially hydroxypropyl methyl cellulose ether (HPMC), is an important component in commercial mortar. The effects of cellulose ether on cement-based materials include water retention, thickening, air entrainment and retardation, which are excellent in giving commercial mortar. At the same time, it also affects the macro and micro structure of cement hydration products, thus affecting the mechanical properties of commercial mortar. Cellulose ethers are usually divided into two categories: surface modification and non-surface modification.
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Appearance is White to slightly off-white fibrous or granular powder.
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Hydroxyethyl methyl cellulose is a odorless, odorless, non-toxic white powder that can be dissolved in cold water to form a transparent viscous solution.It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gelation, surface activity, water retention and colloid protection. Widely used in water-based latex coating,building construction and building materials, printing ink, oil drilling and other aspects, play the role of thickening water retention, improve the construction, used for wet and dry mortar series products.
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Hydroxypropyl Methyl Cellulose (Mellutel YT-50) is beside Polyvinylalcohol (PVA) one of the most commonly used suspending agents. Mellutel YT-50 controls the particle size and their distribution, influences the porosity and defines the bulk weight of PVC. The porosity of the polymer particles is strongly linked to the property to adsorb additives like plasticizers or stabilizers. Thereby, the properties of the polymer during processing and of the final product can be controlled. Ultra low viscous Mellutel YT-50 is the most suitable product for PVC manufacturing processes.
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Application of low viscosity hydroxypropyl methylcellulose (HPMC) in ceramics: In the ceramic industry, it is used as an adhesive for molding surprise ceramic products, giving lubricity and water retention, and improving the original strength of raw materials.The concentrated solution is adsorbed on the surface of ceramic particles, so that the friction between particles is reduced and the lubricity is enhanced, and the manufactured molded products have the required surface smoothness and dimensional stability; The sintered ceramic products with excellent electrical properties can be obtained
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Tile cement mortar is used to attach tiles on concrete or block walls. It comprises cement, sand, limestone, HPMC and various additives, ready to be mixed with water before use.Normal tile cement is usually economic mortar which has lower content of cement and RDP (Redispersible polymer powder) than standard tile cement.
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Appearance is White to slightly off-white fibrous or granular powder.
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Swells in water and produces a clear to opalescent,viscous colloidal mixture, high transparency, stable performance, HPMC dissolved in water is not affected by pH value.
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Tile cement mortar is used to attach tiles on concrete or block walls.
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The hydroxypropyl methyl cellulose ether hpmc is supplied with a water-repellent and thickening-presenting cellulose ether.Redispersible polymer powder growing the tile ceramic adhesion .The hpmc can substantially growth the power of the tile adhesive and enhance the stress, and growth the power.Structural formula (n~2)/2 OR=-OH、-OCH3、-[OCH2CH(CH3)]nOH or-[OCH2CH(CH3)]OCH3 Specification of non modified products Type ItemHPMCPD/PDSHPMCPK/PKSHEMCEM/EMSEM40MNon surface&
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