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      2. 常州市恒大化工有限公司

        Changzhou Hengda Chemical Co., Ltd.

        Products are mainly suitable for chemical and pharmaceutical

        Specializing in the production and sales of chemical products such as piperazine hexahydrate, piperazine anhydrous, hexapentapiperazine, etc.

        PRODUCTS

        Hengda Chemical

        Hydroxy Propyl Methyl Cellulose

        Hydroxy Propyl Methyl Cellulose (HPMC) is a non-ionic, water-soluble cellulose ether with a variety of functional properties when dissolved in water. It can be used as thickener, adhesive, surfactant, protective colloid, suspending agent and water retaining agent in many building materials.

        Appearance: White or off-white powder.

        Particle size: 100 mesh pass rate is greater than 98.5%; 80 mesh pass rate is greater than 100%.

        Carbonization temperature: 280-300°C

        Apparent density: 0.25-0.70/cm3 (usually around 0.5g/cm3), specific gravity 1.26-1.31

        Discoloration temperature: 190-200°C

        Surface tension: 2% aqueous solution is 42-56dyn/cm

        Weight: 25kg/bag

        Soluble in water and some solvents, such as proper proportion of ethanol/water, propanol/water, trichloroethane, etc. Aqueous solutions are surface active.

        High transparency, stable performance, different specifications of products have different gel temperatures, solubility changes with viscosity, the lower the viscosity, the greater the solubility, different specifications of HPMC have certain differences in performance, and the dissolution of HPMC in water is not affected by the pH value.

        With the decrease of methoxyl content, the increase of gel point, the decrease of water solubility and the decrease of surface activity of HPMC.

        HPMC also has the characteristics of thickening ability, salt resistance, low ash powder, pH stability, water retention, dimensional stability, excellent film forming, and wide range of enzyme resistance, dispersibility and cohesiveness.

        Uses:

        This product is industrial grade HPMC, mainly used as a dispersant in the production of polyvinyl chloride, and it is the main auxiliary agent for preparing PVC by suspension polymerization. In addition, it can be used as a thickener, stabilizer, emulsifier, excipient, and water-retaining agent in the production of other petrochemicals, coatings, building materials, paint removers, agricultural chemicals, inks, textile printing and dyeing, ceramics, papermaking, cosmetics, etc. , film forming agent, etc. The application in synthetic resin can make the obtained product have the characteristics of regular particle size, looseness, appropriate specific gravity, and excellent processing performance, thus basically replacing gelatin and polyvinyl alcohol as dispersants. In addition, in the construction process of the construction industry, it is mainly used in mechanized construction such as wall building, stucco decoration, and caulking; especially in decorative construction, it is used for pasting ceramic tiles, marble, and plastic decorations. Cement consumption. It is used as a thickener in the paint industry, which can make the layer bright and delicate, prevent powder removal, improve leveling performance, etc.

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