Polymer Water Resistant Coating Dispersant - High Performance for Water-Based Coatings
Product Overview
HT-5027 is a high-efficiency, water-soluble polymeric dispersant engineered to revolutionize pigment and filler stabilization in waterborne coatings. With its narrow molecular weight distribution (PDI <1.2) and tailored hydrophobicity, this dispersant delivers unparalleled dispersion efficiency across inorganic/organic pigment systems while enhancing coating aesthetics and functional performance. Designed for architectural paints, industrial coatings, and colorant pastes, HT-5027 enables formulators to achieve >95% pigment grinding efficiency (Hegman grind ≤5μm) while suppressing viscosity rebound and phase separation during storage. Certified non-hazardous (GHS classification exempt), it aligns with global sustainability initiatives through solvent-free operations and low-VOC compliance.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Light yellow transparent liquid | Visual inspection (ASTM D2090) |
| Solid Content | 25–40% (adjustable per formulation needs) | ISO 3251 |
| pH Value | 7.0–9.0 | DIN 53200 |
| Molecular Weight (Mw) | 15,000–25,000 g/mol | GPC (PS standard) |
| Solubility | Fully miscible in water | ASTM D1763 |
| Primary Solvent | Propylene glycol | — |
| Density (25°C) | 1.10–1.15 g/cm³ | ISO 2811 |
| Viscosity (25°C) | 200–800 mPa·s | Brookfield LV, spindle 2 |
Core Innovations
1. Precision Molecular Architecture
- Controlled polymerization:
- Narrow PDI ensures uniform adsorption on pigment surfaces.
- Anchoring groups (-COOH, -PO₃H₂) provide multi-point binding to TiO₂, CaCO₃, etc.
- Steric/electrostatic stabilization:
- Polyether chains create 5–10nm hydration barriers (DLS analysis).
- Zeta potential <-35mV prevents pigment agglomeration.
2. Multi-Functional Performance
- Grinding acceleration:
- Reduces milling time by 30% vs. conventional dispersants.
- Achieves Hegman 7+ fineness in 45min (vs. 90min baseline).
- Storage stability:
- 6-month viscosity drift <10% (ISO 3219).
- Zero hard sediment in iron oxide pastes (ASTM D869).
Performance Advantages
1. Enhanced Coating Properties
- Optical quality:
- 15% higher contrast ratio vs. PAA-based dispersants (PVC 45%).
- 60° gloss >85 for semi-gloss paints (ASTM D523).
- Water resistance:
- 168h immersion blistering resistance (ISO 4628-2).
- Wet scrub resistance >20,000 cycles (ASTM D2486).
2. Pigment-Specific Benefits
| Pigment Type | Performance Metrics |
|---|---|
| Titanium Dioxide | 30% higher opacity at equal PVC |
| Iron Oxide (Red/Yellow) | 50% faster wetting, zero flocculation |
| Phthalocyanine Blue | ΔE<1.0 after QUV 1,000h |
| Calcium Carbonate | 60% reduced viscosity rebound @40°C |
Industrial Applications
I. Architectural Coatings
- Interior/Exterior Emulsions
- High-PVC flat paints (up to 85% PVC).
- Moisture-resistant bathroom/kitchen coatings.
- Colorant Pastes
- Iron oxide pre-dispersions (40–50% solids).
- Universal tinting bases compatible with SiO₂ matting agents.
II. Industrial Systems
- Anticorrosive Primers
- Zinc phosphate/iron oxide stabilization.
- Salt spray resistance >1,500h (ASTM B117).
- Wood Coatings
- Transparent stains with UV-stable pigment dispersion.
Formulation Guidelines
1. Universal Dispersant Blend
| Component | Ratio | Function |
|---|---|---|
| HT-5027 | 70–80% | Primary dispersant |
| HT-5040 | 20–30% | Co-dispersant/synergist |
| Propylene glycol | 0–5% | Freeze-thaw stabilizer |
2. Recommended Dosage
- Inorganic pigments (TiO₂, CaCO₃):
- 0.2–0.8% on pigment weight (solid/solid).
- Organic pigments (phthalocyanines):
- 0.5–1.0% on pigment weight (solid/solid).
3. Dispersion Protocol
- Premix HT-5027 with water/propylene glycol.
- Add pigments under 800–1,200 rpm agitation.
- Mill to Hegman 6.5–7.0 (3–4 passes).
Packaging & Storage
1. Packaging Options
- Standard: 20kg epoxy-coated iron drums.
- Bulk: 250kg UN-certified HDPE containers.
2. Storage Conditions
- Temperature: 5–35°C (avoid repeated freeze-thaw cycles).
- Shelf Life: 12 months in original sealed packaging.
- Post-opening: Reseal tightly; use within 60 days.
Quality Assurance
- Certifications: ISO 9001:2015, REACH Annex XVII compliant.
- Batch Consistency:
- Molecular weight tolerance ±5%.
- pH variation ±0.5 units.
- Safety Profile: Non-flammable (Flash point >100°C), skin irritation rating 0 (OECD 439).
Economic & Environmental Benefits
- Cost Efficiency: 15–25% dosage reduction vs. competitive products.
- Waste Reduction: Eliminates pigment sludge in grinding equipment.
- Energy Savings: 30% shorter milling time reduces power consumption.
Technical Support Services
- Lab Optimization: Custom dosage curves for novel pigments.
- Troubleshooting: Solving flooding/floating in complex systems.
Conclusion
HT-5027 redefines pigment dispersion technology through its precision-engineered molecular structure, delivering unmatched grinding efficiency and long-term coating stability. By combining steric stabilization with electrostatic repulsion, it addresses critical challenges in high-PVC formulations while enhancing water resistance and optical properties. Whether formulating cost-sensitive architectural paints or performance-driven industrial coatings, HT-5027 provides formulators with a versatile tool to optimize production efficiency and product quality. Backed by rigorous quality control and global regulatory compliance, this dispersant empowers manufacturers to meet evolving market demands for durable, sustainable coatings.
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| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
|
Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
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