TPEG 2400（VPEG 2400）
- EASTCHEM
- China
- 15~20 days
TPEG is a premium macromonomer for polycarboxylate superplasticizer. Featured with high double bond retention rate, 30%+ water reduction rate, and high compressive strength improvement, TPEG effectively optimizes concrete rheology, minimizes slump loss, and ensures low shrinkage. ISO14001 certified green raw material for high-performance concrete in railway, nuclear power, hydraulic engineering.
Description
TPEG is an important raw material for polycarboxylate superplasticizer (PCE). It is produced by macro-monomer copolymerization with acrylic acid, and its hydrophilic groups enhance the water dispersion of the polymer. With high double bond retention, efficient particle dispersion, excellent slump retention, and strong strength development, TPEG helps manufacturers produce high-performance PCE water reducers for precast and cast-in-place concrete, including self-compacting concrete and high-strength concrete. TPEG is also environmentally friendly and complies with quality and environmental management requirements.
Specification
| Inspection Item | Unit | Specification | Result | Test Method |
|---|---|---|---|---|
| Appearance (25°C) | / | White to pale yellow solid/flakes | Qualified | Visual |
| Hydroxyl Value | mg(KOH)/g | 22.0 ± 2 | 22.6 | GB/T 7383 |
| Double Bonds Retention Rate | % | ≥ 95 | 97.6 | HG/T 4803 |
| Iodine Value | g I₂/100 g | 9.0 – 11.0 | 10.0 | GB/T 13892 |
| Moisture Content | wt% | ≤ 0.5 | 0.1 | GB/T 11275 |
| pH (1% Aqueous Solution) | / | 6.5 – 8.5 | 7.6 | GB/T 63 |
Core Product Technical Advantages
High Double Bond Retention & Cost-Efficiency
High double bond retention rate: Boosts polymerization activity significantly, improves raw material utilization, and reduces comprehensive production costs of polycarboxylate superplasticizer.
Adopts high-activity catalyst and optimized synthesis process to ensure stable molecular structure and low impurity content.
Outstanding Water Reduction Performance
Ultra-low dosage: For PCE mother liquor with 20% solid content, the recommended dosage is only 1.0% of cementitious material mass.
High water reduction rate: Stably reaches 26%-30% water reduction rate; customized formula achieves over 30% water reduction with 0.2%-0.5% cement dosage.
Effectively reduces water-binder (W/B) ratio to enhance concrete compactness.
Remarkable Compressive Strength Improvement
Compared with benchmark concrete, TPEG-modified concrete achieves significant strength growth at all ages with stable early and late strength.
Suitable for C60+ high-strength commercial concrete with strength improvement exceeding 20%.
Excellent Slump Retention & Low Slump Loss
Slump retention rate: Concrete slump retention exceeds 80% after 1 hour.
Slump retention index: ≥190mm, effectively solving concrete slump loss during long-distance transportation.
Low Shrinkage & Superior Durability
Minimizes concrete shrinkage and creep, optimizes volume stability, and avoids structural cracking.
Reduces capillary pores inside concrete to form a dense network structure, improving corrosion resistance and permeability resistance.
Wide Cement Adaptability & Construction Optimization
Compatible with various cement powders and mineral admixtures, no abnormal coagulation or bleeding.
Greatly improves concrete rheology and plasticity; realizes self-flowing, pumping, and vibration-free construction to save labor costs.
Green & Environmentally Friendly
Zero environmentally harmful substances during production.
Chloride ion content ≤0.1%, no corrosion to steel bars.
Compliant with ISO14001 international environmental management system standard.
Application Range
Applicable Concrete Types
Retarding concrete, precast concrete, cast-in-place concrete
High-flow concrete, self-compacting concrete, mass concrete
High-performance concrete, fair-faced concrete
Engineering Application Scenarios
Transportation infrastructure: High-speed railway, highway, large bridge, harbor & dock, subway
Key national projects: Nuclear power engineering, water conservancy & hydropower projects
Civil & industrial construction: All types of commercial and residential building projects
Product Performance in PCE System
TPEG is a core raw material for synthesizing high-performance polycarboxylate superplasticizers (PCE). In PCE molecular structure, hydrophilic side chains significantly enhance:
Cement particle dispersion efficiency
Water reduction performance
Slump retention stability
Rheology and workability of concrete
The formed PCE molecules create an adsorption layer on cement particles, which slows hydration, promotes uniform crystal growth, and builds a denser microstructure, resulting in improved concrete strength and durability.
Packaging & Storage Specifications
Standard Packaging: 25kg moisture-proof woven bag
Customization Service: Support customized packaging according to customer requirements
Storage Conditions: Sealed storage in dry, ventilated, cool warehouse; avoid direct sunlight and high-temperature humid environment; shelf life: 12 months
FAQ
Q1. What is TPEG used for?
A: TPEG is a key raw material in the production of polycarboxylate superplasticizers (PCE), primarily used in the formulation of PCE systems for concrete.
Q2. What is the water reduction rate?
A: A 20% solids content superplasticizer stock solution, with a cementitious material admixture of 1.0%, can achieve a water reduction rate of 26%–30%.
Q3. What is its slump retention capacity?
A: The slump retention value after 1 hour can reach over 80%; slump retention index ≥190mm.
Q4. Is it suitable for projects with high chloride ion sensitivity?
A: With a chloride ion content ≤0.1%, it is suitable for projects with high requirements for durability/chloride ion control.