Water-based room temperature crosslinking acrylic acid emulsion and preparation method thereof
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An acrylic emulsion, room temperature cross-linking technology, used in coatings, applications, inks, etc., can solve problems such as poor comprehensive performance, and achieve the effect of improving comprehensive performance
Inactive Publication Date: 2009-12-09
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[0006] 1. Compared with solvents, the overall performance of the product is poor, especially in wear resistance, scratch resistance, water resistance and gloss.
[0007] 2. The hardness of the product can be improved by adding a crosslinking
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Embodiment 1
[0044] A water-based room-temperature cross-linking acrylic emulsion consists of the following components: calculated by weight percentage.
[0052] The preparation method of aqueous room temperature cross-linking acrylic acid emulsion comprises the following steps:
[0053] (1) Weigh 0-30% of the total emulsifier in the formula and water of 0-5% of the total water weight, place in a pre-emulsification kettle, stir; weigh 0-30% of the total monomer weight Add methyl methacrylate, styrene, methacrylic acid, acrylic acid, N-hydroxyacrylamide, hydroxyethyl methacrylate, and butyl methacrylate slowly into the pre-emulsification kettle for pre-emulsification, and the emulsificat...
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Abstract
The invention provides a water-based room temperature crosslinking acrylic acid emulsion and a preparation method thereof, wherein, the water-based room temperature crosslinking acrylic acid emulsion comprises the following components by weight percent: 10-40% of methylmethacrylate, 0-40% of styrene, 0-3% of methacrylic acid, 0.5-1.5% of acrylic acid, 0.5-2% of N-hydroxylacrylamide, 1-3% of ethylmethacrylate, 1-23% of butyl methacrylate, 1-3% of emulsifier, 0.3-1% of initiator, 0.1-0.5% of sodium bicarbonate, 3-9% of neutralizer, 30-60% of water, 0.1-1% of inhibition stabilizer and 0.05-2% of crosslinking agent. In the process of polymerization, the crosslinking monomers (modified monomers) like acrylic acid, methacrylic acid and N-hydroxylacrylamide are introduced to perform carboxyl crosslinking, hydroxyl crosslinking and amido crosslinking with copolymer so that the cohesive strength, heat resistance and ageing resistance of emulsion are obviously increased and the stability of emulsion is increased; the inhibition stabilizer is used so as to prolong the service life.
Description
technical field [0001] The invention relates to the technical field of polymer emulsion polymerization, in particular to a single-component water-based film-forming substance and a preparation method thereof. Background technique [0002] Present prior art, the film-forming material that uses on the market now mainly is divided into organic solvent type, powder type and water-based three major classes, and organic solvent type mainly uses pure benzene, toluene, xylene, solvent gasoline, ester, ketone as solvent. This kind of solvent-based film-forming material uses a large amount of organic solvents, consumes a large amount of non-renewable petroleum resources, is costly, is flammable and explosive, is extremely unsafe for production and transportation, and can also cause serious environmental pollution. However, it has fast drying speed and good comprehensive performance, and is still widely used at present. [0003] The powder-type film-forming material does not contain ...
Claims
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