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Hydrophobic material and preparation method thereof

A hydrophobic and hydrophobic surface technology, applied in the field of materials, can solve the problems of poor mechanical properties of products, expensive raw materials of hydrophobic materials, cumbersome and complicated processes, etc., and achieve the effect of simple method, low price and reduced production cost

Active Publication Date: 2017-06-13
BEIJING FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above traditional methods have problems such as expensive raw materials for the preparation of hydrophobic materials, cumbersome and complicated processes, and poor mechanical properties of the products. Therefore, it is still necessary to develop a more concise and effective synthetic method.

Method used

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  • Hydrophobic material and preparation method thereof
  • Hydrophobic material and preparation method thereof
  • Hydrophobic material and preparation method thereof

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preparation example Construction

[0048] In the preparation method according to the present invention, stearic acid and magnesium hydroxide are used as raw materials, dispersed in absolute ethanol, reacted for a period of time under stirring conditions, and then dried in an oven for solid powder obtained by suction filtration. The dried powder is evenly bonded to various cleaned substrates under the bonding action of phenolic resin, and a hydrophobic material with excellent hydrophobic properties and mechanical properties can be obtained. This preparation process does not require any complicated experimental equipment, does not add any cross-linking agent, organic solvent, initiator, and ultraviolet induction conditions. It is green and pollution-free, with simple process and convenient operation. It is an efficient, fast and environmentally friendly method for preparing hydrophobic materials.

[0049] The phenolic resin used in the hydrophobic material according to the present invention and its preparation met...

Embodiment 1

[0055] 1) Stearic acid modified Mg(OH) 2 preparation of

[0056] 1.995g Mg(OH) 2 The powder (average particle size is 20-30nm) and 0.285g stearic acid are evenly dispersed in 30ml absolute ethanol, stirred at 60°C for 30min, filtered, washed twice with absolute ethanol, and the synthesized solid powder is dried in an oven at 60°C 2h;

[0057] 2) 400-mesh stainless steel mesh is used as the base material, washed with acetone, absolute ethanol, and deionized water under ultrasonic conditions for 15 minutes, and dried in an oven at 60°C for use;

[0058] 3) 8g of thermosetting phenolic resin (BR P832682 (Shanghai Macklin Biochemical Technology Co., Ltd.)) is dispersed in 40ml of deionized water, and the substrate is soaked in the resin solution for 10min. , the amount of phenolic resin is about 8g;

[0059] 4) Preparation of phenolic resin-stearic acid-Mg(OH) 2 Hydrophobic coating

[0060] Use a 400-mesh sieve to evenly distribute the stearic acid-modified magnesium hydroxi...

Embodiment 2

[0065] 1) Prepare stearic acid modified Mg(OH) 2

[0066] 1.995g Mg(OH) 2 Powder (average particle size 20-30nm) and 0.2g stearic acid are evenly dispersed in 30ml of absolute ethanol, stirred at 60°C for 30min, filtered, washed twice with absolute ethanol, and the synthesized solid powder is dried in an oven at 60°C 2h.

[0067] 2) 400-mesh stainless steel mesh is used as the base material, washed with acetone, absolute ethanol, and deionized water under ultrasonic conditions for 15 minutes, and dried in an oven at 60°C for use;

[0068] 3) Disperse 8g of thermosetting phenolic resin in 40ml of deionized water, soak various substrates in the resin solution for 10min, and use as you go;

[0069] 4) Preparation of phenolic resin-stearic acid-Mg(OH) 2

[0070] Use a 400-mesh sieve to evenly distribute the magnesium hydroxide powder on the surface of the substrate coated with phenolic resin obtained in step 3), and heat at 150° C. for 20 minutes with microwave-assisted heati...

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Abstract

The invention discloses a hydrophobic material and a preparation method thereof. The hydrophobic material comprises a base material and a hydrophobic surface coating layer, wherein the surface coating layer contains magnesium hydroxide (Mg(OH)2) powder and phenolic resin. The preparation method of the hydrophobic material is simple, and the prepared hydrophobic material is wide in application range and can still preserve good self-cleaning property and relatively high oil-water separation efficiency under complex physical conditions.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a hydrophobic material and a preparation method thereof. The hydrophobic material prepared by the method not only has a wide range of applications, but also can maintain its good self-cleaning properties under complex physical conditions. High oil-water separation efficiency. Background technique [0002] Hydrophobic materials have attracted more and more attention due to their self-cleaning properties, strong oil-water separation ability and other excellent properties, such as super-hydrophobic films for greenhouse vegetables, micro-flow loss-free liquid transport, and surface coatings for warships and submarines. Many people have successfully prepared hydrophobic materials and applied these excellent properties of hydrophobic materials to practice. For example, many scientists have been reported to have successfully applied hydrophobic materials in the field of oil-water s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/06C09D7/12
CPCC08K3/22C08K9/04C08K2003/2224C09D7/62C09D7/67C09D161/06
Inventor 马明国曹文涛刘艳军孟玲燕王斌李亚瑜
Owner BEIJING FORESTRY UNIVERSITY
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