The Polycarboxylate Superplasticizer Based on EPEG
The mono-vinyl ether of polyethylene glycol, also known as ethylene glycol monovinylether polyethylene glycol ether, features an ether bond at the terminal hydroxyl group of its molecular chain. This structural characteristic not only reduces steric hindrance but also significantly enhances the activity of free radicals due to a higher electron cloud density, lowering the energy barrier for polymerization reactions. Consequently, this allows for a reduction in polymerization reaction temperatures and drastically shortens the entire reaction cycle to just 1 to 2 hours while increasing the conversion rate of the polymerization reaction. For these reasons, ethylene glycol monovinylether polyethylene glycol ether has become a preferred large monomer raw material for producing polycarboxylate superplasticizers.
The polycarboxylate superplasticizer (EPEG-PCE) synthesized based on ethylene glycol monovinylether polyethylene glycol ether is a new product in the industry that has recently emerged. This product exhibits superior performance in adaptability, especially in optimizing the viscosity control of concrete slurries, with market feedback confirming its remarkable effectiveness. The application of EPEG-PCE results in excellent flowability in concrete mixtures, making fresh concrete mixes more pliable and easier for pumping and construction operations, greatly enhancing work efficiency. When dealing with poor-quality aggregates with high clay content, EPEG-PCE effectively addresses sensitivity issues in such concretes. It also shows excellent compatibility with manufactured sand and limestone powder among other mineral admixtures, further broadening its application scope under complex working conditions. This demonstrates the significant potential of EPEG-PCE in improving the overall performance of concrete.
R&D head in Nishu chemtech pvt ltd, Bavala
2 个月Impressive