Plastic stabilizer and preparation method thereof

Abstract

The invention discloses a plastic stabilizer and a preparation method thereof. to obtain The plastic stabilizer is prepared by carrying out polymerization onto four component monomers in the presence of an initiator for 4-8 hours at 60-95 DEG C, wherein the component A is alkenyl polyether acrylate, the component B is alkenyl polyether, the component C is one or a mixture of two of methacrylic acid, acrylic acid, maleic acid, maleic anhydride and corresponding salts thereof; the component D is one of acrylamide, methyl acrylamide and N-hydroxymethyl acrylamide; the mass of component A accounts for 1%-10% of mass of the monomers; an oxidization-reduction system is adopted for initiation, wherein the total mass of an initiator accounts for 0.1%-8% of the total mass of the monomers; after the copolymerization reaction is completed, sodium hydroxide is added into a copolymerization product to neutralize, so that a pH value is regulated to 7-8. The plastic stabilizer prepared by the preparation method has good dispersion and water-retaining property, good plasticity-retaining property, plasticization time up to 24-48 hours while being applied to mortar, and is an environment-friendly type product.

Description

technical field [0001] The invention relates to a cement mortar additive, in particular to a plastic stabilizer for controlling the hardening speed of cement, and a preparation method of the plastic stabilizer. Background technique [0002] With the rapid development of national infrastructure and urbanization, more and more people pay more and more attention to the environmental protection technology and products of energy saving and consumption reduction. Previously, there would be a lot of dust pollution in the on-site mixing of mortar, and the prepared mortar was very random due to the measurement, so the quality of the mortar was difficult to guarantee. The production of dry powder mortar needs to dry the sand, which consumes a lot of resources, so the cost is high, and the on-site mixing also produces dust pollution. [0003] In 2007, the National Bureau of the Sixth Ministry issued the "Notice on the Prohibition of On-Site Mixing Mortar Work in Some Cities within a T...

AI Technical Summary

Problems solved by technology

However, many characteristics of dry-mixed mortar cannot meet the requirements of large-scale promotion of ordinary mortar. At the same time, the investment and cost of its production equipment are too high