The kinetics study and reaction mechanism of acrylate grouting materials
نویسندگان
چکیده
Acrylate grouting material has been widely used in dams, tunnels and other underground buildings. This paper introduces the basic components of acrylate grouting material, then the reaction mechanism and dynamics of gelation process are discussed based on the theory of free radical polymerization. By measuring the relationship between gelation time and the concentration of initiator ammonium persulfate, the chain termination of free radical is confirmed to be single-base termination reaction. The gelation time is inversely proportional with the concentration of initiator and is directly proportional to the natural logarithm of the ratio of the initial concentration [M]0 and a time component concentration [M] of the acrylate monomer. The quantitative relation between them was derived. The result has a guiding significance on the material design and the gelation control of acrylate grouting material.
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