Preparation method and application of high-strength superhydrophobic composite material taking block-like organosilicone/epoxy hybrid resin as matrix

A technology of composite materials and epoxy resin, applied in the direction of coating, etc., can solve the problems of low mechanical strength and adhesion, and achieve the effects of short preparation cycle, stable super-hydrophobic performance, high mechanical strength and adhesion

Pending Publication Date: 2020-01-24
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at the same time high flexibility also gives it low mechanical strength and adhesion

Method used

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  • Preparation method and application of high-strength superhydrophobic composite material taking block-like organosilicone/epoxy hybrid resin as matrix
  • Preparation method and application of high-strength superhydrophobic composite material taking block-like organosilicone/epoxy hybrid resin as matrix
  • Preparation method and application of high-strength superhydrophobic composite material taking block-like organosilicone/epoxy hybrid resin as matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040](1) Add 20g of allyl epoxy resin, 35g of double-terminal hydrogen silicone and 160g of dry toluene into a 500ml four-necked bottle, and add 0.28g of 1,3-divinyl- 1,1,3,3-Tetramethyldisiloxane platinum (0) catalyst, heat up to 65°C for 4 hours, and remove the solvent toluene by rotary evaporation to obtain Si-EP 1 . The infrared spectra of the reaction products and 1 H-NMR spectrum see respectively figure 1 and figure 2 . Add 35g of allyl epoxy resin, 8.7g of double-terminal hydrogen silicone and 140g of dry toluene into a 250ml four-necked flask, and add 0.15g of 1,3-divinyl-1 under 40°C and stir for 30min with nitrogen , 1,3,3-Tetramethyldisiloxane platinum (0) catalyst, heated up to 110 ° C for 4 hours, and the solvent toluene was removed by rotary evaporation to obtain Si-EP 2 . The infrared spectra of the reaction products and 1 H-NMR spectrum see respectively image 3 and Figure 4 .

[0041] (2) Disperse 6g of silica powder with a particle size of 50nm a...

Embodiment 2

[0053] (1) Add 10g of allyl epoxy resin, 17.3g of double-ended hydrogen silicone and 120g of dry toluene into a 250ml four-necked flask, fill with nitrogen at room temperature and stir for 30min, then add 0.18g of chloroplatinic acid-xylene catalyst , heated up to 60°C for 4 hours, and the solvent toluene was removed by rotary evaporation to obtain Si-EP 1 . Add 35g of allyl epoxy resin, 8.7g of double-ended hydrogen silicone and 140g of dry toluene into a 250ml four-neck flask, fill with nitrogen and stir for 30min at 40°C, then add 0.21g of chloroplatinic acid-xylene catalyst, and heat up Reaction at 100°C for 4h, and the solvent toluene was removed by rotary evaporation to obtain Si-EP 2 .

[0054] (2) Disperse 4g of silica powder with a particle size of 50nm and a particle size of 2g with a particle size of 500nm after KH560 treatment into 30g of ethanol and sonicate for 10min, and then continue to add 5g of Si-EP 1 , 1.25g Si-EP 2 Add to the above ethanol suspension, ...

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Abstract

The invention provides a preparation method of a superhydrophobic composite material taking two chemically-bonded silanized epoxy resin and block-like organosilicone/epoxy hybrid resin as a matrix. The silanized epoxy resin is prepared by utilizing a reaction of trimethoxysilane and high-purity allyl epoxy resin, the block-like organosilicone/epoxy hybrid resin is prepared by utilizing a reactionof double-hydrogen-terminated organosilicone and the high-purity allyl epoxy resin; and the two organosilicone/epoxy resin hybrid systems and micro-nano particles are blended and compounded to form asuspension, then an epoxy resin curing agent is added for matching, and the generated suspension can be sprayed, brushed or dip-coated on the surfaces of various base materials to obtain a superhydrophobic surface with high adhesive force and high mechanical strength. The preparation method has the advantages of simplicity, easiness in operation and extremely high process stability, and the formedsuperhydrophobic composite material is firm and reliable, still has the superhydrophobic characteristic after being abraded, and has very high practical values.

Description

technical field [0001] The invention relates to the field of synthesis and preparation of polymer materials, and furthermore, relates to a preparation method and application of a superhydrophobic composite material with a quasi-block organosilicon / epoxy hybrid resin as a matrix. Background technique [0002] Superhydrophobic surfaces are widely used in waterproof, self-cleaning, oil-water separation, anti-corrosion and anti-fouling, anti-icing and fluid drag reduction. Among the many methods for designing superhydrophobic surfaces, generally, the preparation of superhydrophobic surfaces is divided into two ways: one is to construct a surface rough structure on a low surface energy solid surface to achieve superhydrophobicity; the other is to graft low surface energy chemical substances onto Rough solid surface. Among them, the use of superhydrophobic coatings is the simplest and most versatile approach. Based on this idea, the commonly used methods for constructing superhy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/42C09D183/10C09D7/62
CPCC08G77/42C09D183/10C09D7/62C08K2201/011C08K2201/003C08L2205/025C08L83/10C08K9/06C08K3/36
Inventor 李言张博窦鹏
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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