Carboxylate acrylonitril styrene butadiene copolymer of synthesis rubber latex for reforming semi-rigid pavement and polymer cement and method thereof and modified concrete composition comprising the same

摘要

Provided are: a carboxylate acrylonitrile styrene butadiene copolymer of synthesis rubber latex for reforming semi-rigid pavement and polymer cement, which is produced by integrally adding 10 to 20 parts by weight of seed latex, 30 to 40 parts by weight of polybutadiene latex, 20 to 50 parts by weight of acrylonitrile monomer, 10 to 30 parts by weight of styrene monomer, 2 to 8 parts by weight of unsaturated carboxylic acid monomer, 2 to 8 parts by weight of an acrylate monomer, 3 to 8 parts by weight of an emulsifier, 2 to 5 parts by weight of a reaction initiator, and 1 to 15 parts by weight of an additive to a reactor, and subjecting the mixture to emulsion polymerization and grafting reactions at the pressure of 0.2 to 0.5 atm and at the temperature of 35 to 55°C for 4 to 8 hours; a manufacturing method thereof; and a modified concrete composition comprising the same. In the carboxylate acrylonitrile styrene butadiene copolymer of synthesis rubber latex for reforming semi-rigid pavement and polymer cement, formaldehyde is not detected, the content of volatile organic compounds is low, and heavy metals (lead, chromium, cadmium, mercury) are not detected to be environmentally friendly.