HDB-6801

Product Details

CasNo： 9003-04-7

MF： (C3H3NaO2)n

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Core Basic Information

1. Product Name: HDB-6801 Dispersant
2. Chemical Category: High-molecular polycarboxylate polymer dispersant with a large molecular weight (number-average molecular weight typically 8,000-15,000). Its molecular chain contains numerous carboxylate groups and hydrophilic side chains, achieving dispersion through the dual effects of "electrostatic repulsion + steric hindrance".
3. Appearance and Properties: At room temperature, it is a pale yellow to yellow transparent viscous liquid with no visible impurities, precipitation, or stratification, consistent with the typical appearance of high-molecular polycarboxylate dispersants.
4. Core Functions: Significant viscosity reduction (for high-concentration suspension systems), long-term dispersion stability, and inhibition of particle agglomeration, suitable for the dispersion needs of high-solid-content and fine-particle suspension systems.

2. Key Technical Parameters (Based on enterprise test data; the following are typical reference ranges)

3. Core Performance Advantages

1. Outstanding Viscosity Reduction Effect: For high-concentration (≥50% AI) pesticide SC or high-solid-content pigment slurries, it can reduce the system viscosity by 35%-50% (compared to conventional polycarboxylate dispersants), significantly improving the fluidity of the suspension and solving the industry pain point of "difficult stirring and easy nozzle clogging in high-concentration systems".
2. Strong Dispersion Stability: The large-molecular-weight chains can tightly adsorb on the particle surface, forming an adsorption layer of 5-10nm thick, inhibiting particle agglomeration. After 14 days of thermal storage at 54℃±2℃ for 20% AI pesticide SC, the suspension rate remains ≥93%, and the stratification height is ≤3% (volume ratio), far exceeding the industry average.
3. Wide Adaptability: Compatible with various pesticide active ingredients such as fungicides (e.g., tebuconazole), insecticides (e.g., abamectin), and herbicides (e.g., glufosinate-ammonium). It is also suitable for the dispersion of inorganic pigments such as titanium dioxide and iron oxide, as well as nano-scale powders (e.g., nano-silica), without the need to adjust the formula for a single system.
4. Good Process Compatibility: Excellent shear resistance, with molecular chains not easily broken during sand milling dispersion (rotating speed 1500-3000r/min), ensuring stable dispersion effects. It can be compounded with non-ionic surfactants (e.g., Nongru 600#) and thickeners (e.g., xanthan gum) without compatibility conflicts.

4. Application Scenarios

1. Agricultural Field: Preparation of high-concentration pesticide suspensions (SC), especially suitable for SC products with AI content above 50% (e.g., 50% pyraclostrobin SC, 60% glufosinate-ammonium SC), improving the storage stability of the suspension and the fluidity of field application, reducing the risk of nozzle clogging.
2. Coating and Ink Field: Dispersion of high-solid-content water-based industrial paints and ink pastes, such as slurries with more than 60% titanium dioxide, reducing system viscosity while improving pigment color development and coating gloss.
3. New Material Field: Aqueous dispersion systems of nano-powders (e.g., nano-ceramic powder, graphene slurry), preventing nano-particle agglomeration through the steric hindrance effect of large molecular weight, ensuring the uniformity of the dispersion system.
4. Other Fields: Dispersion of lithium battery cathode material slurries (e.g., lithium iron phosphate slurry), improving slurry fluidity and coating uniformity, suitable for new energy material production needs.

5. Usage and Storage Instructions

1. Recommended Dosage:
   • Pesticide SC systems: 2.5%-6.0% (based on the total mass of the system), with 3.5%-6.0% recommended for high-concentration systems (≥50% AI);
   • Pigment/powder slurries: 3.0%-7.0%, with 5.0%-7.0% recommended for nano-scale powders.
2. Usage Method:
   • Pre-treatment stage: Pre-dilute with a solvent (e.g., ethylene glycol) at a ratio of 1:2, add to the mixed system of active ingredient/pigment and water, and then perform sand milling;
   • Post-adjustment stage: If the system viscosity is too high after sand milling, add 0.5%-1.0% of HDB-6801 and stir for 15-30 minutes.
3. Storage Conditions:
   • Store in a sealed, cool, and dry place, with the temperature controlled at -5℃-40℃, avoiding direct sunlight and high-temperature exposure;
   • Slight viscosity may occur in low-temperature environments in winter. After heating to 20℃-25℃ and stirring evenly, the performance is not affected.
4. Shelf Life: Under specified storage conditions, the shelf life is 12 months (from the production date).

6. Precautions

1. A small-scale test (formula total amount of 200g is recommended) is required before first use to determine the optimal dosage, avoiding unstable dispersion due to insufficient dosage or increased costs due to excessive dosage;
2. Wear nitrile gloves during operation to avoid direct skin contact. In case of accidental eye contact, rinse immediately with plenty of water and seek medical attention;
3. Do not store with strongly acidic substances (pH < 4.0) or strong oxidants (e.g., potassium permanganate) to prevent molecular chain degradation or chemical reactions;
4. Tightly seal the lid immediately after opening unused products to prevent moisture evaporation from causing abnormal viscosity. It is recommended to use the opened product within 1 month.