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Preparation method of superhydrophobic nano thermal-insulation paint

A technology of nano heat insulation and heat insulation coating, applied in the direction of coating, can solve the problems of coating peeling, fluorine compound toxicity, expensive silane compound, etc., and achieve the effect of low thermal conductivity

Inactive Publication Date: 2014-06-25
佛山市莱威化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fluorine compounds are toxic and silane compounds are expensive; the use of nanoparticles can easily cause coating peeling off

Method used

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  • Preparation method of superhydrophobic nano thermal-insulation paint
  • Preparation method of superhydrophobic nano thermal-insulation paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of superhydrophobic nano heat-insulating coating, comprising the following steps:

[0028] a). Prepare the base material:

[0029] Use 2-hydroxypropyl acrylate (HPA) as monomer, ethylene glycol dimethacrylate (EGD) as crosslinking agent, dibenzoyl peroxide (BPO) as initiator, and ethanol as solvent , configured as a monomer solution;

[0030] In the monomer solution, the concentration of 2-hydroxypropyl acrylate (HPA) is 0.32 mol / L; the concentration of ethylene glycol dimethacrylate (EGD) is 4.5 mmol / L; the diphenyl peroxide The concentration of formyl (BPO) was 5.2 mmol / L.

[0031] Add sodium dodecylbenzenesulfonate active agent and OP-10 emulsifier into ethanol, stir until the emulsifier is well dispersed to form an auxiliary agent solution. The concentration of the sodium dodecylbenzenesulfonate is 5.2 mmol / L, and the concentration of the OP-10 emulsifier is 6.2 mmol / L.

[0032] Gradually drop the monomer solution into the additive solution,...

Embodiment 2

[0045] 1. a preparation method of superhydrophobic nano heat-insulating coating, is characterized in that, may further comprise the steps:

[0046] a). Prepare the base material:

[0047] Use 2-hydroxypropyl acrylate (HPA) as monomer, ethylene glycol dimethacrylate (EGD) as crosslinking agent, dibenzoyl peroxide (BPO) as initiator, and ethanol as solvent , configured as a monomer solution;

[0048] In the monomer solution, the concentration of 2-hydroxypropyl acrylate (HPA) is 0.56mol / L; the concentration of ethylene glycol dimethacrylate (EGD) is 6.2mmol / L; the diphenyl peroxide The concentration of formyl (BPO) was 4.7 mmol / L.

[0049] Add sodium dodecylbenzenesulfonate active agent and OP-10 emulsifier into ethanol, stir until the emulsifier is well dispersed to form an auxiliary agent solution. The concentration of the sodium dodecylbenzenesulfonate is 7.5mmol / L, and the concentration of the OP-10 emulsifier is 9.7mmol / L.

[0050] Gradually drop the monomer solution in...

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Abstract

The invention relates to a preparation method of a superhydrophobic nano thermal-insulation paint, belonging to the technical field of a preparation method of a paint. The preparation method comprises the following steps: a) preparation of base material: preparing a monomer solution by using 2-hydroxyethyl acrylate (HPA) as a monomer, ethylene glycol dimethyl acrylate (EGD) as a crosslinking agent, dibenzoyl peroxide (BPO) as an initiator and ethanol as a solvent; adding a sodium dodecyl benzene sulfonate activating agent and an OP-10 emulsifier into ethanol to form an assistant solution; gradually and dropwisely adding the monomer solution into the assistant solution; b) preparation of nano ATO (antimony tin oxide) powder with the particle size of 40-70nm; and c) mixing to prepare the paint. The paint does not use any toxic compound containing fluorine, silicon or the like, and thus, is healthy and environment-friendly. The paint has superhydrophobicity, the surface contact angle can reach 151 degrees, and thus, the paint has certain actions in the aspects of water-oil separation, bacterial growth inhibition and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of coatings. Background technique [0002] Researching a kind of coating that can be applied to the heat insulation of metal and cement surfaces to enhance the heat insulation effect in cars or houses has been the goal pursued by the coating industry at home and abroad. [0003] However, traditional heat-insulating coatings have the disadvantages of poor stain resistance and difficult cleaning. [0004] When a drop of water is placed on a solid horizontal surface, the drop will naturally spread to a certain angle to achieve equilibrium. When this equilibrium contact angle is greater than 150°, we call it a superhydrophobic surface. Superhydrophobic surfaces are widely used for self-cleaning of objects. [0005] Generally speaking, superhydrophobic coatings increase the equilibrium contact angle on the surface of objects in two ways: one is to construct a rough surface structure; the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C09D7/12C08F220/28C08F222/14C08F2/26C08F2/30
Inventor 钱永兴
Owner 佛山市莱威化工科技有限公司
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