A microcapsule-based self-healing water-based superhydrophobic coating and preparation method thereof

A super-hydrophobic coating and microcapsule technology, which is applied in the direction of microcapsule preparation, microsphere preparation, coating, etc., can solve environmental pollution and other problems, and achieve the effect of no VOC emission, simple preparation process and low cost
CN105885679BActive Publication Date: 2017-12-26绍兴江绵纺织品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
绍兴江绵纺织品有限公司
Publication Date
2017-12-26

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Abstract

The invention relates to a self-repairing water-based super-hydrophobic coating. The durability aim of the surface performance of an existing super-hydrophobic coating is achieved, and the environment-friendly aim in the preparing process of a traditional super-hydrophobic coating is further achieved. The coating is prepared from, by weight, 10%-50% of aqueous film-forming resin, 5%-40% of microcapsule, 0.1%-10% of photocatalytic activity nanometer particles, 5%-40% of hydrophobicity nanometer particles and 10%-60% of deionized water. After the surface of the coating is subjected to physical abrasion or organic pollution, the microcapsule in the coating is fractured under the effect of photocatalytic degradation and releases fluoroalkyl silane, and the damaged surface is self-repaired, the super-hydrophobic performance of the coating is recovered, and therefore the durability when the coating is used outdoors is guaranteed. According to the self-repairing water-based super-hydrophobic coating, the method is simple, the preparing technology is environmentally friendly, and large-area construction is easy to achieve.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of self-repairing super-hydrophobic coating materials, in particular to a microcapsule-based self-repairing water-based super-hydrophobic coating material and a preparation method thereof. Background technique

[0002] The superhydrophobic surface (contact angle greater than 150° and rolling angle less than 10°) has very unique properties, so it has potential application value in many fields, such as self-cleaning, waterproof fabric, anti-icing, anti-corrosion and drag reduction. . However, the existing superhydrophobic surface rapidly fails due to factors such as sunlight, mechanical wear and organic pollution, which seriously affects its actual service life. In addition, the existing superhydrophobic coatings almost always use organic solvents to dissolve hydrophobic substances during the preparation process, which will cause environmental pollution and environmental protection problems dur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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