The water reducing agent is environmentally friendly, non-flammable, explosive and safe to transport on trains and cars.
According to the differences in backbone structures, polycarboxylic acid superplasticizer products can be divided into two categories: using acrylic acid or methacrylic acid as backbone types and grafting polyethers with different side chain lengths.
Others are polyethers whose primary bond is maleic anhydride and which have different side chain lengths. Based on this, several powerful water-reducing products with different properties were derived.
Prior to the formation of the polycarboxylate dehydrating agent, it was necessary to reconstitute the supernatants from the polycarboxylate supernatants.
It has the advantage of low dosage, good droplet stability, low concrete shrinkage, high molecular structure controllability and high potential for high performance. Significant advantages such as the absence of formaldehyde in the process.
For the synthesis of a polycarboxylate water reducing agent, the design of the molecular structure is crucial, including the head group, side chain density, and side chain length in the molecule. . . The synthesis methods mainly include a grafting method with in situ polymerization, first a polymerization method, then a functionalization method, and a direct copolymerization method of the monomers.