Anti-alkali primer
A technology of anti-alkali primer and mass content, applied in the field of coatings, can solve the problems of primer anti-alkali, anti-salting-out performance, permeability influence, large emulsion particles, etc., and achieve the goal of enhancing alkali-resistant sealing and increasing density Effect
Active Publication Date: 2017-01-18
ASIA PAINT SHANGHAI
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Problems solved by technology
Most of the existing primers use anionic emulsion or styrene-acrylic copolymer emulsion, and the emulsion particles are relatively large, which greatly affects the alkali resistance, salting-out resistance and permeability of the primer.
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[0034] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0035] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.
[0036] An anti-alkali primer provided according to some embodiments of the present invention, the components contained and the mass content of each component are:
[0037] Water: 20-25 parts,
[0038] Dispersant: 0.5-0.8 parts,
[0039...
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The invention provides alkali-resistant primer. The alkali-resistant primer comprises the following components in parts by mass: 20-25 parts of water, 0.5-0.8 part of a dispersant, 0.3-0.5 part of a wetting agent, 0.1-0.3 part of a defoaming agent, 15-20 parts of titanium dioxide, 8-10 parts of talcum powder, 5-8 parts of ground calcium carbonate, 0.8-1 part of propylene glycol, 1-2 parts of a coalescing agent, 0.2-0.4 part of environmentally friendly auxiliaries, 3-5 parts of cellulose, 38-45 parts of modified epoxy acrylic emulsion and 0.8-1 part of a thickener. The alkali-resistant primer provided by the invention can be used for increasing film-forming density and strengthening the permeability and alkali-resistant closure of the primer by adopting an interpenetrating network copolymerization process route and technical treatment; according to the epoxy acrylic emulsion modified by virtue of a special bridging technology, the adhesion of a putty layer and the flatness and smoothness of a film are improved by virtue of nano-scale emulsion particles, so that the alkali-resistant primer is water-resistant, has good permeability for vapor, and is greatly strengthened in closed alkali resistance; and a polyacrylic acid copolymer potassium salt is used as a dispersant, so that the film has good water resistance and stability.
Description
technical field [0001] The invention relates to the field of coatings, more specifically, to an alkali-resistant primer. Background technique [0002] In the construction process of architectural coatings, in order to obtain ideal coating effects, high-quality primer is a key factor. Unsatisfactory primers will directly lead to a series of adverse reactions such as blistering, efflorescence, and salting-out in the topcoat. Most of the existing primers use anionic emulsion or styrene acrylic copolymer emulsion, and the emulsion particles are relatively large, which greatly affects the alkali resistance, salting-out resistance and permeability of the primer. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. [0004] For this reason, the object of the present invention is to provide an alkali-resistant, salt-out resistant primer with good permeability. [0005] In order to achieve the abo...
Claims
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IPC IPC(8): C09D163/10C09D7/12
CPCC08K2003/2241
Inventor 徐志新余先明王永桑莹莹李金钟
Owner ASIA PAINT SHANGHAI