Preparation method of high-tensile amide benzene ring emulsion polymer with core-shell structure

Abstract

The invention provides a preparation method of a high-tensile amide benzene ring emulsion polymer with a core-shell structure. According to the invention, an amide-based hydrophilic monomer and a benzene ring-based hydrophobic monomer are used as raw materials, and are subjected to pre-emulsification, constant-temperature polymerization, pH adjustment and a series of processes in an emulsion reaction system to prepare a macromolecular flame-retardant polymer waterproof coating material with high density, good heat resistance and strong tensile strength, wherein the amide intramolecular hydrogen bond can enhance the internal binding force of the polymer, the strong hydrophilic effect enhances the adhesion with the matrix, and the reticular connection effect of the cross-linking agent promotes the interpenetration and the biphase continuity of the polymer interface, so that the polymer generates the special synergistic effect in performance and function so as to achieve good heat-resistant and tensile effects; and the prepared emulsion waterproof coating material with the hard-core soft-shell structure has high glass transition temperature and low film-forming temperature so as to ensure the good film-forming property, wherein a smooth film with no fisheye or pinhole is prepared.

Description

technical field [0001] The invention belongs to the technical field of emulsion polymer films, relates to the field of films and coatings, and in particular relates to a preparation method of a core-shell structure high tensile amide benzene ring emulsion polymer. Background technique [0002] As the advantages of emulsion polymerization technology are gradually discovered and the process is continuously optimized, the film structure characteristics of various synthetic polymer emulsions have also been extensively studied, and it is known that the film structure of polymer emulsions will be carried out according to the following process. At temperatures above the glass transition temperature, the polymer particles change shape and become bonded to each other through the water evaporated in the emulsion; With temperature and short drying times like in mass production, the film structure will be partially developed but good properties will not be obtained. The difficulty with ...

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Problems solved by technology

[0006] However, the technology disclosed in the above patent still does not solve the problems of generally poor waterproof performance and aging resistance, general adhesion, etc., so it is necessary to develop a new process to solve the above technical problems

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