Cellulose Ether for Paints
Your Professional Cellulose Ether For Paints Supplier
Founded in 1992 and Listed on the Shenzhen Stock Exchange in June 2016, stock code: 002810. Head Group is an international cellulose ether manufacturer, it is also an ecological compound group company that run through upstream and downstream industrial chain of cellulose ether and penetrates the fields of HPMC capsules and plant meat.Headquartered in Zhoucun, Zibo, China, with branches in Gaoqing, Zibo, Shanghai, etc.; In October 2020, Head upgraded Environment Protection System by investment of US 60 million.The project introduces leading technology: safe and stable process, energy saving equipment and technology. It avoids secondary pollution and additional gas or liquid waste.
Our Certificate
We are committed in user experience, adhere to innovation and R&D
● 137 patents, including 24 invention patents and 113 utility model patents.
● Provincial Cellulose Ether Scientific and Technological Research Center.
● ISO9001,ISO45001,ISO14001,FSSC22000,HALAL /KOSHER,REACH and other certifications.
Production Market
Head has provided high-quality products and solutions to customers in more than 100 countries and regions around the world, including the United States, Germany, the United Kingdom, Canada, Russia, Australia, and Japan.
Product Application
Our products are widely used in the fields of Building material grade cellulose, Pharmaceutical Grade cellulose, Daily chemical Grade cellulose ether, Food Grade cellulose ether.
24-Hour Service
Our dedicated 24-hour online support ensures prompt responses, providing you with an excellent shopping experience. Feel free to reach out with any questions at any time.
Types of Cellulose Ether For Paints
Hydroxyethylcellulose (HEC):
HEC is a water-soluble cellulose ether widely used as a thickener and rheology modifier in water-based coatings. It provides excellent thickening efficiency and shear thinning behavior, imparting pseudoplastic flow to coatings. HEC is compatible with a variety of binders and additives, making it versatile in coating formulations.
Hydroxypropylmethylcellulose (HPMC):
HPMC is another cellulose ether widely used in coatings due to its film-forming properties, water-holding capacity, and thickening capabilities. It can improve the application performance and application performance of coatings, enhance adhesion and reduce splashing during application. HPMC is compatible with water-based and solvent-based systems.
Methylcellulose (MC):
MC is a cellulose ether commonly used as a thickener and binder in water-based coatings. It has high water retention properties which extend the open time and improve the leveling properties of the paint film. MC also contributes to the stability and uniformity of coating formulations.
Carboxymethylcellulose (CMC):
CMC is a water-soluble cellulose ether primarily used as a rheology modifier and stabilizer in water-based coatings. It controls viscosity, improves flow properties, and enhances the stability of coating formulations. CMC is particularly effective at preventing pigment settling and ensuring uniform color distribution in paints.
Benefits of use Cellulose Ether For Paints
One of the key benefits of cellulose ether in paints is its thickening properties. Cellulose ether acts as a rheology modifier, which helps to control the viscosity of the coating. This is important because the viscosity of the paint or coating affects its flow and leveling properties.
In addition to its thickening properties, cellulose ether also acts as a stabilizer in paints and coatings. It helps to prevent settling and sagging of pigments and fillers, which can lead to uneven coverage and poor adhesion.
Another benefit of using cellulose ether in paints is its water retention properties. Cellulose ether has the ability to absorb and retain water, which helps to improve the open time of the paint. This means that the coating remains workable for a longer period, allowing for better application and smoother finishes.
Cellulose ether also offers benefits in terms of adhesion and durability. It helps to enhance the adhesion of the coating to the substrate, resulting in better long-term performance and resistance to peeling and flaking. Additionally, cellulose ether can improve the overall durability of the coating, making it more resistant to wear and tear, UV exposure, and harsh weather conditions.
Furthermore, cellulose ether is a cost-effective additive for paints and coatings. It is readily available and relatively inexpensive compared to other additives.
The Role Of Cellulose Ether For Paints
Rheology control:
One of the main functions of cellulose ethers in coatings is rheology modification. They act as thickeners, giving viscosity to paint formulations. This viscosity control is critical to achieving desired application properties such as brushability, sprayability and rollability. In addition, cellulose ethers contribute to the anti-sag and anti-settling properties of coatings, preventing pigment settling and ensuring uniform coating thickness.
Water retention:
Cellulose ethers have excellent water retention properties and help prevent premature drying of paint. By retaining moisture in the formulation, cellulose ethers extend the open time of the coating, allowing for adequate wetting, leveling and film formation. This property is particularly beneficial in humid environments or during prolonged applications.
Film formation:
Cellulose ethers play a role in the film-forming process of coatings. When coating is applied to a substrate, cellulose ethers help form a continuous film as the solvent evaporates. The film provides adhesion, durability and protection to the underlying surface. The film-forming properties of cellulose ethers help improve the overall performance and longevity of paint coatings.
Stabilization:
In addition to rheology control and film formation, cellulose ethers help stabilize coating formulations. They prevent phase separation, flocculation or coalescence of ingredients, thereby maintaining coating uniformity and stability during storage and use. This stabilizing effect ensures that the paint's performance and appearance remain consistent over time.
Specification
|
Items |
Technical data |
|
Appearance |
White or off-white powder |
|
Ash |
≤5.0% |
|
Etherification(MS/DS) |
0.8-1.2/1.8-2.0 |
|
Viscosity range (Brookfield-RV, 2% solution, 20ºC) |
300-70,000 mPa.S |
|
Viscosity range (NDJ-1, 2% solution, 20ºC) |
300-200,000 mPa.S |
|
Moisture |
≤6 % |
|
PH Value |
6-8 |
|
Gel temperature |
70-90 % |
|
Packing Density |
300 - 600g/l |
|
Particle size |
100% Pass 80 mesh |
|
Water retention |
≥95% |
Application of Cellulose Ether For Paints
Architectural coatings:
In architectural coatings, such as interior and exterior wall emulsions, cellulose ethers are used to control viscosity, improve workability and enhance the overall performance of the coating. They facilitate brushing, rolling and spraying for smooth and uniform application on different substrates.
Decorative coatings:
Cellulose ethers are important components of decorative coatings, including primers, enamels and textured coatings. They help achieve the desired paint texture, gloss and finish while providing durability, adhesion and weather resistance. Cellulose ethers also serve to reduce splashing and dripping during construction.
Industrial coatings:
In industrial coatings for metal, wood and plastic substrates, cellulose ethers act as thickeners, stabilizers and film formers. They improve the flow and leveling of coatings, enhance adhesion to the substrate, and provide corrosion and chemical resistance. Cellulose ethers help improve the overall performance and durability of industrial coatings in harsh environments.
Special coatings:
Cellulose ethers are also used in specialty coatings such as automotive coatings, marine coatings and high-performance coatings. In these applications, they help achieve specific performance requirements such as scratch resistance, UV resistance and chemical resistance. Cellulose ethers enhance the application performance and durability of specialty coatings, ensuring long-lasting protection and beauty.
Manufacturing Process of Cellulose Ether For Paints
The production of cellulose ethers involves several steps. That includes alkalization, etherification, neutralization, and purification.
Alkalization
The first step is to create cellulose with an alkaline solution. This step is to activate the hydroxyl groups. This makes them more reactive for the subsequent etherification process.
Etherification
The activated cellulose reacts with various etherifying agents (such as methyl chloride for MC or propylene oxide for HPMC) to substitute the hydroxyl groups with ether groups. This step determines the specific type of cellulose ether produced.
Neutralization
After etherification, the reaction mixture is neutralized to stop the reaction and stabilize the product.
Purification
The final step involves purifying the cellulose ether to remove any unreacted chemicals and by-products. This is typically done through washing and filtration processes.
FAQ
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