Introduction of HEC40000 thickening and water-retaining agent
The main component of HEC40000 is cellulose ether. Application scenario: waterproof coating (main component is acrylic emulsion), effectively solve the technical problem of emulsion stratification, and reduce costs at the same time. Recommended addition amount: 0.8%~1% of water.
Features of HEC40000 thickening and water-retaining agent
Good dispersibility: The product is surface treated and can be quickly dispersed in water without agglomeration, and releases viscosity after adding alkali.
Good mildew resistance: can effectively solve the technical problem of emulsion stratification
High gel temperature: suitable for hot weather.
TRUNNANO HEC40000 thickening and water-retaining agent
Parameters of HEC40000 thickening and water-retaining agent
|
Chemical properties |
Non-ionic |
|
Appearance |
White or light yellow powder |
|
Water content |
≤10.0 |
|
Fineness (60 mesh) |
≥97% |
|
Viscosity (mPa.s) |
2800~40000 |
|
(25℃, 2% concentration., Brookfield, 6#, 20rpm) |
5.0～7.0 |
|
pH value |
≥75 |
Applications of HEC40000 thickening and water-retaining agent
Cellulose: such as hydroxyethyl cellulose (HEC), methylcellulose (MC), etc., this type of thickener and the water-retaining agent has good water solubility and stability and is suitable for water-based coatings.
Polyurethane: provides a good thickening effect while having little effect on the gloss of the coating, suitable for occasions requiring higher gloss.
Acrylate: has good water resistance and weather resistance, suitable for waterproof coatings in outdoor environments.
Inorganic salts, such as bentonite, etc., are suitable for occasions that require rapid thickening but may have a certain impact on the transparency of the coating.
Precautions for use
When selecting a thickener and water-retaining agent, the specific application environment and requirements of the coating should be considered, such as whether it is used indoors or outdoors and whether special weather resistance or chemical resistance is required.
Attention should be paid to the compatibility between the thickener and water-retaining agent and other components of the coating to avoid adverse phenomena such as stratification and precipitation.
The amount of addition needs to be properly controlled; too much or too little will affect the final performance of the coating.
Before construction, the product instructions should be carefully read, and mixing and construction should be carried out according to the recommended proportions and methods.
Packing and Storage
Packaging: 25kg/bag
Shelf life: 1 year
Company profile
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality HEC40000 thickening and water-retaining agent please feel free to contact us or click on the needed products to send an inquiry.
Payment Term
T/T, Western Union, Paypal, Credit Card etc.
Shipment Term
By air, by sea, by express, as customers request.
Packaging
FAQs of HEC40000 thickening and water-retaining agent
1. What is HEC40000 and how does it work in coatings?
Answer: HEC40000 is a high molecular weight hydroxyethyl cellulose (HEC) that acts as both a thickening and water-retaining agent in various coatings and formulations. It works by increasing the viscosity of the liquid, which helps to prevent sagging and dripping during application. Additionally, its water-retaining properties help maintain moisture in the coating, preventing premature drying and ensuring better adhesion and performance.
2. How do I determine the appropriate amount of HEC40000 to add to my coating formulation?
Answer: The amount of HEC40000 needed depends on the desired viscosity and specific application requirements. Generally, a starting point is to use 0.5% to 2% by weight of the total formulation. It's important to conduct small-scale trials to find the optimal concentration that provides the desired thickness and stability without affecting other properties like gloss or drying time.
3. Can HEC40000 be used in both water-based and solvent-based coatings?
Answer: HEC40000 is primarily designed for use in water-based coatings due to its excellent water solubility. It is not typically used in solvent-based systems because it has limited solubility in organic solvents. For solvent-based applications, alternative thickeners such as associative thickeners or modified cellulose ethers might be more suitable.
4. How do I ensure proper dispersion of HEC40000 in my coating formulation?
Answer: Proper dispersion of HEC40000 is crucial to achieve the desired thickening and water-retaining effects. To ensure good dispersion:
Preparation of Solution: Dissolve HEC40000 in cold water under continuous mixing to avoid lump formation. Once fully dissolved, the solution can be added to the coating formulation.
Mixing: Use high-speed mixing or a disperser to ensure thorough and uniform distribution of HEC40000 throughout the formulation.
Temperature Control: Avoid using hot water, as it can cause gel formation and make dispersion difficult.
5. Are there any compatibility issues with other additives or ingredients when using HEC40000?
Answer: While HEC40000 is generally compatible with most common additives and ingredients used in water-based coatings, some potential issues can arise:
Electrolytes: High concentrations of electrolytes can reduce the effectiveness of HEC40000.
Surfactants: Some surfactants can interact with HEC40000, potentially affecting the viscosity and stability of the formulation.
Biocides and Preservatives: Ensure that any biocides or preservatives used are compatible with HEC40000 to avoid adverse reactions.
