Study on preparation of grafted lignosulfonate sulfonated acetone formaldehyde superplasticizer

Aiming at the price rising of the raw materials for sulfonated acetone formaldehyde superplasticizer and recycling utilization of paper pulp liquor,a modified sulfonated acetone formaldehyde superplasticizer HLC-RS(M) was prepared by the grafting compolymerization of sulfonated acetone formaldehyde polycondensate with lignosulfonate.The best factors of grafting compolymerization were studied by single factor means.The effects of HLC-RS(M),HLC-RS and mixing product of HLC-RS and lignosulfonate (RS-FZ) on concrete are compared experimentally.The results indicate that the properties of HLC-RS(M) are better than ordinary sulfonated acetone formaldehyde superplasticizer.