VPEG2400 Sulfate-Resistant Monomer
Molecular Weight: ~2400
Unsaturation: 0.3783 mol/kg
Hydroxyl Value: 22–25 mg KOH/g
Double Bond Retention: ≥92%
CAS: 31497-33-3 (VPEG 2400 Polyether Monomer)
VPEG2400 Sulfate-Resistant Monomer: High-Performance PCE Monomer for Sulfate-Rich Concrete Applications
EverStar Group, with over 14 years of integrated chemical manufacturing expertise, produces VPEG2400 Sulfate-Resistant Monomer directly from our advanced production facility. This specialized vinyl polyoxyethylene ether monomer solves a critical industry challenge: maintaining concrete workability when using high-sulfate cements (SO₃ >3.5%) common in coastal regions and ready-mix operations. Our Factory-direct supply ensures you receive pharmaceutical-grade purity with consistent molecular weight control (~2400 via GPC), backed by EU REACH compliance and 5,000+ tons of on-site inventory. Unlike standard HPEG monomers that lose 30-50% dispersing power in sulfate environments, the product maintains over 90% adsorption efficiency through its unique vinyl ether backbone structure.
What Is VPEG2400 Sulfate-Resistant Monomer?
This monomer represents a breakthrough in polycarboxylate superplasticizer (PCE) synthesis technology. When you use conventional polyether monomers in sulfate-rich conditions, sulfate ions (SO₄²⁻) compete with PCE molecules for adsorption sites on cement particles—causing sudden slump loss and unpredictable setting times.
The product features specialized side-chain architecture that resists this competitive adsorption. You get predictable fluidity retention even when cement quality varies or when marine sand introduces additional salts. This makes your concrete production more reliable across different raw material batches.
The monomer's molecular weight of 2400 provides optimal balance: long enough for steric hindrance effects, yet manageable for cold-process synthesis at 35-45°C. This reduces your energy costs compared to high-temperature polymerization routes.
Technical Specifications
| Parameter | Specification | Significance |
|---|---|---|
| Appearance | White or Light Yellow Flakes | Easy handling and storage |
| Molecular Weight | ~2400 | Optimal for PCE synthesis |
| Unsaturation | 0.3783 mol/kg | High grafting efficiency |
| Hydroxyl Value | 22–25 mg KOH/g | Ensures reactivity balance |
| Double Bond Retention | ≥92% | Simple PCE Production Process |
| CAS Number | 31497-33-3 | Industry-standard identification |
The double bond retention ≥92% is particularly important for your PCE synthesis. This ensures maximum grafting efficiency when you copolymerize with acrylic acid at a 1:3.0-4.5 molar ratio.
Note: Product specifications may be adjusted during product iteration and optimization. Please submit your inquiry to us for the latest data and official COA documents.
Why Choose VPEG2400 Over Standard HPEG?Sulfate Tolerance Performance
Standard HPEG fails when cement SO₃ content exceeds 3.5%—a common situation in many regions. The product maintains 90%+ dispersion efficiency even at these elevated sulfate levels. Our laboratory testing demonstrates this advantage across dozens of cement types from Middle Eastern, Southeast Asian, and coastal suppliers.
Multi-Source Cement Compatibility
If you operate a ready-mix plant using multiple cement suppliers, you know the pain of batch-to-batch performance variation. This monomer's robust chemistry tolerates these fluctuations, giving you consistent concrete quality without constant formula adjustments.
Clay Contamination Resistance
Aggregates containing clay minerals can disrupt conventional PCE performance. The specialized structure of this monomer shows lower sensitivity to these contaminants, reducing your quality control headaches when sand sources vary.
Core Applications
Marine & Coastal Infrastructure
When constructing bridges, ports, or offshore platforms, you face exposure to high concentrations of magnesium and sodium sulfates. VPEG2400 Sulfate-Resistant Monomer enables production of admixtures that maintain workability for 90-120 minutes even in these harsh environments. Your pumping operations remain predictable, and your concrete achieves target strengths on schedule.
Underground Construction
Tunnel shotcrete and cast-in-place concrete in sulfate-rich soil require reliable performance. This monomer prevents the "slump kill" effect that causes costly delays and rework. You maintain long-distance pumpability and achieve proper consolidation in challenging placement conditions.
High-Volume Supplementary Cementitious Materials (SCM)
When formulating sustainable concrete with fly ash or slag, you introduce additional soluble salts that disrupt standard PCE performance. This monomer ensures your rheological properties remain stable, supporting your sustainability goals without compromising workability.
Ready-Mix Operations
For commercial ready-mix production using variable cement sources, you need formulation robustness. This monomer delivers consistent performance whether your cement supplier ships from Plant A or Plant B, reducing your technical service calls and customer complaints.
Synthesis Advantages
Cold-Process Compatibility
You can copolymerize this monomer at 35-45°C—significantly lower than conventional courses requiring 60-80°C. This decreases your vitality utilization by roughly 40% and streamlines your reactor cooling requirements.
Predictable Response Control
The firmly controlled atomic weight conveyance guarantees reliable bunch yields. Your handle improvement time diminishes, and you accomplish quicker scale-up from lab to generation quantities.
Low-Foaming Characteristics
The optimized atomic structure minimizes discuss entrainment in your last concrete blend. Whereas you may still utilize defoamers for particular Applications, the standard execution streamlines your detailing work.
Quality Assurance From EverStar Group
Manufacturing Excellence
Our devoted generation lines highlight mechanized control frameworks that screen hydroxyl esteem, unsaturation, and dampness substance in real-time. Each bunch experiences GPC examination to confirm atomic weight conveyance some time recently release.
Inventory & Logistics
With over 5,000 tons of on-site capacity capacity, we keep up prepared stock for quick shipment. Our 99.5% on-time conveyance execution implies you get fabric when your generation plan requires it, whether you arrange 1 ton or 20 tons.
Technical Support
Our chemical engineers give application bolster all through your item advancement cycle. We offer free cement compatibility testing—send us your nearby cement test, and we'll give comparative execution information appearing VPEG versus standard HPEG execution at no charge.
Regulatory Compliance
All items dispatch with EU REACH documentation, ISO certification, and total specialized information sheets. You get the compliance printed material required for worldwide ventures without extra demands.
FAQ
Q: How should I store VPEG2400 to maintain quality?
A: Store in a cool, dry location below 35°C, away from direct sunlight and moisture sources. Keep containers sealed when not in use. Under these conditions, the monomer maintains full chemical activity for 12 months from production date.
Q: What molar ratio should I use for PCE synthesis?
A: Start with 1:3.5-4.0 (VPEG2400:Acrylic Acid) for general-purpose applications. Adjust toward 1:3.0 for higher water reduction or 1:4.5 for extended slump retention based on your performance targets.
Q: Does this monomer require special handling equipment?
A: No special equipment is needed beyond standard chemical handling practices. The flake form minimizes dust generation compared to powder products. Use standard stainless steel or lined vessels for storage and processing.
Q: How quickly will I see performance differences versus standard HPEG?
A: A: In high-sulfate cements (SO₃ >3.0%), you'll observe immediate improvements in slump retention and reduced sensitivity to cement batch variation. In normal cements (SO₃ <2.5%), performance will be comparable to quality HPEG, providing formulation flexibility.
Q: Can I blend this with other polyether monomers?
A: Yes, many formulators use 30-50% VPEG2400 blended with standard HPEG to optimize cost while maintaining sulfate resistance. Our technical team can recommend blend ratios based on your specific cement conditions and performance requirements.
Q: What Certifications do you provide with shipments?
A: Each shipment includes Certificate of Analysis (COA), EU REACH compliance documentation, MSDS/SDS in multiple languages, and technical data sheet. For export orders, we provide all required customs documentation.
Get Started With VPEG2400 Sulfate-Resistant Monomer
Whether developing new PCE formulations or solving sulfate issues in existing products using VPEG2400 Sulfate-Resistant Monomer, EverStar Group offers the technical partnership and reliable supply you need.
