Scratch-resisting polyurethane acrylic coating and preparation method thereof
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A technology of urethane acrylic acid and urethane acrylate, which is applied in the field of scratch-resistant urethane acrylic paint and its preparation, can solve the problems of limiting the scope of application of the paint, poor ductility of the coating film, etc. Scratch ductility, the effect of reducing production costs
Inactive Publication Date: 2018-05-04
无锡特丽斯新材料科技有限公司
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Abstract
Description
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Problems solved by technology
[0003] At present, the scratch resistance of the coating film is mainly improved by increasing the hardness of the polymer coating film, but such one-sided improvement of the scratch resistance of the coating film by increasing the hardness of the polymer coating film will lead to poor ductility of the coating film due to too high hardness. , which greatly limits the scope of application of the coating
Method used
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Examples
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Embodiment 1
[0014] (1) Take 1,6-ethylene glycol diacrylate with a mass ratio of 15%, 35% soft polyurethane acrylic resin, and 40% hard polyurethane acrylic resin and mix evenly. Photoinitiator, 0.2% reactive siloxane;
[0015] (2) filter the coating obtained in step (1) with 200 mesh filter paper, and coat the coating on the product surface;
[0016] (3) The product of step (2) is sent to a UV curing light source under nitrogen protection for curing.
Embodiment 2
[0018] (1) Take 1,6-ethylene glycol diacrylate with a mass ratio of 15%, 35% soft polyurethane acrylic resin, and 40% hard polyurethane acrylic resin and mix evenly. Photoinitiator, 0.2% reactive siloxane;
[0019] (2) filter the coating obtained in step (1) with 200 mesh filter paper, and coat the coating on the product surface;
[0020] (3) The product of step (2) is sent to a UV curing light source under nitrogen protection for curing.
[0021] Compared with the coating of Example 1, the coating of this embodiment has better weather resistance.
Embodiment 3
[0023] (1) Take 1,6-ethylene glycol diacrylate with a mass ratio of 15%, 45% soft polyurethane acrylic resin, and 35% hard polyurethane acrylic resin and mix evenly, and add 3% of the mass ratio in turn while stirring. Photoinitiator, 0.2% reactive siloxane;
[0024] (2) filter the coating obtained in step (1) with 200 mesh filter paper, and coat the coating on the product surface;
[0025] (3) The product of step (2) is sent to a UV curing light source under nitrogen protection for curing.
[0026] The toughness of the coating is particularly outstanding.
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Abstract
The invention discloses scratch-resisting polyurethane acrylic coating and a preparation method thereof and belongs to the technical field of chemical industry. The prepared coating can give consideration to rigidity and toughness. The coating disclosed by the invention is prepared from the following components in percentage by mass: 10 percent to 15 percent of an active diluting agent, 30 percentto 50 percent of a soft component, 30 percent to 50 percent of a hard component, 2 percent to 3 percent of a photoinitiator and 0.1 percent to 0.5 percent of a flatting agent. Correspondingly, the invention further discloses the preparation method of the scratch-resisting polyurethane acrylic coating; the preparation method comprises the following steps: uniformly mixing all the components and filtering a mixture with 200-mesh filter paper and coating the surface of a product; finally, curing in a UV (Ultraviolet) light source under the protection of nitrogen gas. According to the scratch-resisting polyurethane acrylic coating, a coating film formed on the surface of a base material has good scratch resistance and good ductility after the coating is cured, and the coating has a smooth surface; meanwhile, the rigidity and toughness ratio of the coating can be blended according to different purposes of the coating; the coating is wide in application range and low in cost.
Description
technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a scratch-resistant polyurethane acrylic paint and a preparation method thereof. Background technique [0002] The coating film on the surface of automobiles, furniture and other objects is easily damaged by sand, stones, washing or artificial scratches during use, resulting in weakened gloss and obvious scratches, which seriously affect the quality and appearance of the coating film. Therefore, scratch resistance has become a measure of coating quality. An important indicator of membrane performance. High scratch resistance means that the coating film can keep the surface of the material shiny and beautiful for a long time, so that the service life of the decorative material is longer. [0003] At present, the scratch resistance of the coating film is mainly improved by increasing the hardness of the polymer coating film, but such one-sided improvement of ...
Claims
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Application Information
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