Product Type: Polycarboxylate amine salt-based SC (Suspension Concentrate) dispersant, with the core component being a modified polycarboxylate amine salt copolymer. Its molecular structure is designed (with different functional groups introduced) to meet the dispersion requirements of multiple systems.
Core Features: It has both broad-spectrum universality and high-efficiency dispersion stability. It can rapidly reduce the surface tension of the suspension system, prevent particle agglomeration, and there is no need to adjust the formula for specific dispersion objects, making it suitable for multiple types of SC products.
Appearance and Physical Properties: It is a light yellow to yellow transparent viscous liquid; solid content ≥40% (30%-50% specifications can be customized according to requirements); pH value (1% aqueous solution) 6.5-8.5; viscosity (25℃, rotational viscometer) 500-1500mPa·s; it has excellent compatibility with most pesticide active ingredients (such as fungicides, insecticides), solvents (such as ethylene glycol, propylene glycol) and additives (such as thickeners, preservatives), without stratification or precipitation.
2. Key Performance Parameters
Recommended Dosage: The addition ratio in the SC formula is 2.0%-5.0%. For high-concentration SC (active ingredient content ≥50%) or easily agglomerated particles (such as nano-scale active ingredients), it can be adjusted to 4.0%-6.0%. The specific dosage needs to be verified by small-scale tests (it is recommended to start testing from 3.0%).
Dispersion and Stability Efficiency Indicators:
Suspension Rate: Prepare a 20% active ingredient SC sample. After standing at 25℃ for 30 days, the suspension rate is ≥95% (the industry average for similar products is 85%-90%), far exceeding the national standard (≥90%);
Particle Size Control: For active ingredient particles with an initial particle size of 10μm, after dispersion, the particle size distribution is uniform (D50=2-5μm, Span≤1.5), and there is no agglomeration of large particles (D90≤10μm);
Thermal Storage Stability: After thermal storage at 54℃±2℃ for 14 days, the suspension rate is still ≥92%, the stratification height is ≤5% (volume ratio), and no crystallization precipitates after refrigeration at 0℃±2℃ for 7 days.
Compatibility and Environmental Adaptability:
Compatibility: It is compatible with non-ionic surfactants (such as Nongru 600#), anionic surfactants (such as sodium dodecylbenzene sulfonate) and inorganic salts (such as potassium chloride) without compatibility conflicts;
Environmental Adaptability: Within the temperature range of -5℃-50℃ and pH range of 5.5-9.5, the fluctuation of dispersion performance is ≤4%, suitable for storage and use environments in different regions.
3. Application Scenarios
Core Application Fields:
Agricultural Pesticide SC Preparation: Suitable for multiple pesticide formulations, such as fungicide SC (such as tebuconazole SC), insecticide SC (such as abamectin SC), herbicide SC (such as glufosinate-ammonium SC). It is especially suitable for high-concentration and multi-component compound SC, solving the problem of "single-system adaptation" of traditional dispersants; it can also be used for biological pesticide SC (such as Bacillus thuringiensis SC) to avoid damage to active ingredients.
Chemical Suspension System Dispersion: Used in coating SC (such as water-based industrial coatings), ceramic slurry SC (such as alumina ceramic slurry) and nano-material suspensions (such as nano-titanium dioxide suspension) to improve the uniformity and stability of the system and avoid the impact of particle agglomeration on product performance (such as coating hiding power, ceramic green body density).
Suitable Processes: Compatible with mainstream SC production processes such as sand milling dispersion and high-speed shear dispersion. It can be added directly to the premix before grinding or added after grinding to adjust stability. There is no need to adjust existing equipment parameters (such as sand mill speed, shear time), reducing production transformation costs.
4. Core Advantages
Wide Universality Coverage: Suitable for more than 90% of SC formula types, including pesticide active ingredients with different chemical structures, different concentration specifications and different particle size systems. There is no need to develop exclusive dispersion schemes for a single product, reducing customers' formula research and development costs and time (research and development cycle shortened by 30%-50%).
Strong Dispersion Stability: Compared with traditional polycarboxylate dispersants, by introducing amine salt groups, the adsorption force with the particle surface is enhanced, the suspension rate is increased by 5%-10%, and the thermal storage stability is better, solving the industry pain points of SC products such as "storage stratification" and "suspension rate decline".
Outstanding Cost-Effectiveness: Efficient dispersion can be achieved with a low addition amount (2.0%-5.0%). Compared with the combination scheme of "single dispersant + co-dispersant", the comprehensive cost is reduced by 15%-20%; and the number of formula components is reduced, simplifying the production process.
Safety, Environmental Protection and Compliance: The acute oral toxicity LD50 > 2000mg/kg (low-toxicity level), and the biodegradation rate (BOD5/CODcr) ≥0.45. It complies with EU REACH regulations, US EPA standards and China's GB/T 23377-2020 "General Environmental Safety Requirements for Pesticide Additives", and can meet the market access requirements of major global markets.
5. Precautions for Use
When mixing the formula, it is recommended to pre-dilute HDB-SC1011T with a solvent (such as ethylene glycol) at a mass ratio of 1:1-1:3, and then add it to the mixed system of active ingredients and water to avoid abnormal viscosity caused by excessive local concentration;
It should be stored in a sealed, cool and dry place (temperature ≤35℃), avoiding direct sunlight and high-temperature exposure; if there is a slight viscosity change (±20%) during long-term storage, it can be used normally after stirring evenly, without affecting performance;
For strongly acidic active ingredients (pH < 4.0) or strongly alkaline active ingredients (pH > 10.0), a small-scale test (total formula amount within 200g) should be carried out before the first use to verify the dispersion effect and stability. If necessary, optimize the adaptability by adjusting the pH (adding a buffer).
6. Quality Standards
Execution Standard: Enterprise Standard Q/HD 020-2025 (subject to the official standard issued by the manufacturer);
Key Index Control: Solid content ≥40%, pH value (1% aqueous solution) 6.5-8.5, viscosity (25℃) 500-1500mPa·s, suspension rate (20% SC, 30 days) ≥95%, total content of heavy metals (lead, cadmium, mercury, arsenic) ≤10mg/kg, formaldehyde content ≤0.1%, ethylene glycol residue ≤5%.