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Hydroxypropyl methyl cellulose is an additive to the production of high quality building materials. In order to meet the needs of green environmental protection, our factory specially developed and produced products for the building materials industry, with high water retaining performance, good dispersion, good fineness, good workability, convenient dissolution and other characteristics: suitable for dry mortar building materials, inner and outer wall water resistant putty powder (paste), binder, caulk, interface agent, water-based paint, self-leveling agent and other new building materials. Cellulose is an indispensable additive in the production of building materials.

Tile Adhesive
Wall Putty
Gypsum/Plaster
Paints & Coating
Daily Chemicals

Tile Adhesive

Tile adhesive is a material used to fix and bond tiles. Adding an appropriate amount of cellulose to tile adhesive can improve the adhesion and tensile strength of the tiles, preventing problems such as hollowing and falling off during use.

Thickening effect

Tile adhesive needs to have a certain viscosity to ensure smooth application and bonding during construction. Hydroxypropyl methyl cellulose plays a thickening role in tile adhesive, increasing its viscosity, making it less likely to flow, and facilitating construction. At the same time, the thickened tile adhesive is less likely to penetrate into the gaps between tiles, reducing the amount of grout needed.

Adhesive action

The main function of tile adhesive is to bond tiles, making them firmly adhere to walls or floors. Hydroxypropyl methylcellulose plays a bonding role in tile adhesive, which can enhance the adhesive force of the tile adhesive and make the tiles adhere more firmly to the wall. At the same time, due to the presence of active hydroxyl groups and ether bonds in the molecular structure of hydroxypropyl methylcellulose, these groups can react with the silicate on the surface of the tiles, further improving the bonding strength.

Water retention function

Hydroxypropyl methy lcellulose in tile adhesive also serves a water-retaining function. In a dry environment, tile adhesive is prone to losing water and hardening, which leads to a decline in its adhesive strength. However, hydroxypropyl methyl cellulose can effectively retain the moisture in the tile adhesive, slow down the water loss process, and ensure that the tile adhesive has good working performance during application. Additionally, the water-retaining effect can also extend the service life of the tile adhesive and enhance the bonding effect.

Emulsification

In some special tile adhesive formulations, hydroxypropyl methyl cellulose also serves an emulsifying function. It can act as an emulsifier to evenly disperse substances that are difficult to dissolve, such as silicone and paraffin, in the tile adhesive, enhancing the stability of the system. Additionally, the emulsifying effect can also improve the water resistance, weather resistance, and durability of the tile adhesive.

Wall Putty

The most commonly used putty powder is hydroxypropyl methylcellulose (HPMC), Advantages of HPMC: strong water retention, stable thickening effect, good alkali resistance (suitable for cement-based putty), moderate film-forming properties, balancing workability and curing performance, making it the mainstream choice.

Water Retention and Thickening to Prevent Rapid Drying

After application, putty needs to adhere tightly to the substrate (wall), and the cementitious materials (such as cement and gypsum) require water to complete the hydration reaction. The hydrophilic groups (hydroxyl groups, ether bonds) in the cellulose molecular chain can adsorb a large amount of water, forming a "moisture protective film," slowing down the penetration of water into the substrate (such as dry walls) and the rate of evaporation into the air, preventing the putty from cracking, blistering, and powdering due to rapid drying.

Simultaneously, cellulose forms a three-dimensional network structure in water, increasing the viscosity (consistency) of the putty slurry, preventing "sagging" during construction (especially on vertical surfaces) due to excessive thinness.

Improved Workability (Workability, Plasticity)

Cellulose imparts good "thixotropic properties" to the putty: when standing, the slurry has a high consistency (not easily sedimenting or separating); during construction, mixing, or application (under shear force), the consistency decreases (easy to spread); after application, the shear force disappears, and the slurry quickly recovers its consistency, ensuring a uniform putty layer thickness and reducing "stickiness" or "collapse." For putty applied by hand scraping or machine spraying, suitable cellulose can make the putty easier to apply and smooth on the wall, reducing scraper resistance and improving construction efficiency.

Backflow prevention

Valves can prevent the backflow of fluids, safeguarding the safety and stability of equipment operation.

Energy conservation

Valves can adjust flow and pressure, leading to energy savings and improved utilization efficiency.

Gypsum/Plaster

In the proportioning of building mortar, gypsum, as one of the commonly used cementitious materials, is widely applied in various construction scenarios such as leveling, plastering, self-leveling and interior wall plastering. However, gypsum materials themselves have problems such as short setting time, easy cracking, poor fluidity and easy delamination. Therefore, adding an appropriate amount of functional admixtures becomes particularly crucial.
Cellulose, especially hydroxypropyl methyl cellulose (HPMC) and hydroxyethyl methyl cellulose (HEMC), is widely used in gypsum-based products and is one of the most mature gypsum admixtures on the current market.

Improved Water Retention

Gypsum slurry itself has poor water retention and is prone to rapid water loss under high temperatures or in well-ventilated environments, leading to cracking and decreased strength. Cellulose ethers form a moist protective film within the slurry, effectively delaying water evaporation and ensuring full hydration of the gypsum, thereby reducing the risk of cracking and peeling, and improving final strength.

Improved Workability (Thickening and Anti-Sagging)

Cellulose ethers significantly increase the consistency and viscosity of gypsum slurry, giving it good thixotropic properties. This makes it easier to apply and less prone to sagging or peeling, making it particularly suitable for thin-layer plastering and puttying.

Enhanced Adhesion

Cellulose ethers improve the adhesion strength between gypsum slurry and the substrate (such as walls and gypsum board), allowing the material to adhere more firmly to the base and reducing hollow areas and peeling.

Improved Homogeneity and Flowability

In gypsum self-leveling mortar, cellulose ethers help maintain a homogeneous slurry, preventing segregation, while providing suitable flowability for smoother application and a smoother surface.

Retarding Effect

Cellulose ethers can appropriately extend the setting time of gypsum, providing a longer working window, especially important in high-temperature environments or for large-area applications.

Air Entraining and Foam Stabilizing Effect

Some cellulose ethers have a slight air-entraining effect, introducing micro-bubbles into the slurry, increasing bulk density, improving thermal insulation performance and workability. However, the dosage must be controlled to avoid excessive strength reduction.

Paints & Coating

Cellulose is widely used in coatings. It can be used as an emulsifying stabilizer, thickener and adhesive, etc. In water-based coatings, cellulose can play a good role in increasing viscosity, and at the same time, it can also enhance the adhesion and fluidity of the coating. In addition, cellulose can also be used to improve the emulsification performance of coatings and increase their stability.

Increased Coating Adhesion

Adding cellulose to coatings increases their adhesion and bonding strength, allowing them to better adhere to the surface of the substrate, thus improving durability and resistance to delamination.

Improved Flowability

Cellulose has excellent thickening properties, effectively controlling the flowability of coatings, making them easier to apply and brush. Furthermore, cellulose accelerates the drying time of coatings, thereby improving production efficiency.

Enhanced Fire Resistance

Due to its high-temperature resistance and fire-retardant properties, cellulose can be added to coatings to improve their fire resistance.

4. Improved Water Resistance

Cellulose can absorb and fix water molecules in coatings, thereby improving their water resistance and humidity stability. In addition, cellulose also enhances the coating's resistance to stiffness and aging.

Daily Chemicals

The addition of detergent grade cellulose, such as hydroxypropyl methylcellulose (HPMC), to detergent products plays several key roles.

Thickening and Stabilization

Cellulose increases the viscosity of detergent products, making them easier to adhere to the objects being cleaned, thus enhancing their cleaning effectiveness. It also helps to evenly distribute the detergent ingredients, preventing stratification and ensuring the overall stability of the product.

Suspension and Antifreeze

Cellulose allows water-insoluble ingredients, such as fragrances and preservatives, to remain evenly suspended in the liquid, preventing sedimentation that could compromise product quality. In low-temperature environments, cellulose prevents detergent products from freezing, ensuring normal use in cold conditions.

Other Properties

detergent grade cellulose also exhibits good water retention and film-forming properties for skin and hair, further optimizing the user experience. Furthermore, its low irritation, high-temperature stability, and broad pH stability make it suitable for various detergent products, such as shampoos, shower gels, and facial cleansers.

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Paints & Coating

Daily Chemicals

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