Different Polycarboxylate

According to the structure of the main chain, the polycarboxylate superplasticizer products can be divided into two categories: one type of polyether with acrylic or methacrylic acid as the main chain and different side chain lengths. The other type is a polyether having a length of different side chains of maleic anhydride. Based on this, a series of high performance water reducer products with different characteristics were derived.
Before the appearance of the polycarboxylic acid admixture, there are a lignosulfonate admixture, a naphthalene sulfonate formaldehyde condensate, a melamine formaldehyde polycondensate, an acetone sulfonate formaldehyde condensate, a sulfamate formaldehyde condensate, and the like. In the early 1980s, Japan took the lead in the successful development of polycarboxylate superplasticizers. A new generation of polycarboxylate superplasticizer overcomes some of the drawbacks of traditional water reducers, with low mixing capacity, good moisture retention, low concrete shrinkage, strong molecular structure, high performance, and high production potential. The process does not use the outstanding advantages of formaldehyde.