In the realm of advanced construction materials, the performance of concrete is significantly enhanced by sophisticated chemical admixtures. Among these, polycarboxylate ether (PCE) superplasticizers stand out for their ability to dramatically improve concrete properties. A core component in the synthesis of these PCEs is the Polyethylene Glycol Monomethallyl Ether, commonly known as HPEG, with the CAS number 31497-33-3. For R&D scientists and product formulators, understanding this molecule is key to unlocking superior concrete performance.

What is HPEG (CAS 31497-33-3)?

HPEG is a type of polyoxyethylene ether with a methallyl group, making it an unsaturated monomer. Its chemical structure, often represented as CH2=C(CH3)CH2O(CH2CH2O)nH, allows it to polymerize with other acrylic monomers. This polymerization is the basis for creating the molecular architecture of PCE superplasticizers, which are designed to provide exceptional steric hindrance and electrostatic repulsion between cement particles.

Key Properties and Applications

HPEG is typically supplied as a white flake solid. Its primary application is as a raw material for synthesizing polycarboxylate-based cement water-reducing agents. The resulting superplasticizers offer:

  • High Water Reduction Rate: Essential for producing high-strength concrete with less water.
  • Excellent Dispersing Ability: Ensures cement particles are well-separated, leading to improved fluidity and workability.
  • Good Slump Retention: Maintains concrete's plasticity over extended periods, vital for transport and placement.
  • Enhanced Durability: Contributes to concrete's long-term resistance to cracking and environmental degradation.
  • Environmental Friendliness: Does not cause steel bar corrosion, a significant advantage in reinforced concrete structures.

These properties make HPEG-derived superplasticizers indispensable for modern construction, including high-performance concrete (C60 and above), civil engineering projects like bridges and highways, and precast concrete elements. If you are looking to buy this essential chemical, seeking a reputable supplier in China is advisable for competitive price and reliable quality.

Why Choose a Trusted Manufacturer?

The efficacy of your concrete admixtures hinges on the purity and consistency of the HPEG monomer. A well-established manufacturer ensures stringent quality control, offering specifications like low water content (≤0.5%) and appropriate hydroxyl values. When evaluating options, consider product availability, packaging (typically 25kg/drum or bag), and storage recommendations (cool, dry, well-ventilated). Don't hesitate to request samples and quotes from preferred suppliers to ensure you are getting the best value and performance.

HPEG (CAS 31497-33-3) is more than just a chemical; it's an enabler of stronger, more durable, and sustainable construction. Partner with a knowledgeable supplier to integrate this critical component into your formulations.