Preparation method of carbon nanostructure reinforced explosion-proof surface material
A carbon nanostructure and surface material technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of impossibility of process implementation, coating conductivity decline, accumulation, etc., to improve basic performance and barrier Explosion-proof performance, high elasticity and structural stability, enhanced interaction effect
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Embodiment 1
[0031] (1) Graphene coupling modification. Take 100 mg of graphene and 50 mg of carbon nanotubes in 60 mL of absolute ethanol, ultrasonically disperse for 1 hour to form a uniform dispersion; then add a certain amount of HCl to adjust the pH of the dispersion to 3~4; then 10 mL containing 0.3g 95% ethanol of KH-570 (γ-methacryloxypropyltrimethoxysilane) was slowly added under stirring, continued to react at 60°C for 24 h, centrifuged, and then washed with absolute ethanol and deionized water Second, completely remove the unreacted KH-570, and make the washing solution neutral, and the product obtained is functionalized graphene to obtain a modified carbon material, which is fully dispersed and sealed and stored in an acetone solution with a solubility of 1mg / ml for later use .
[0032] (2) Add silane leveling agent. The acetone solution of the modified carbon material was added to 12 g of polydimethylsiloxane leveling agent, mechanically stirred for 10 min, and ultrasonicall...
Embodiment 2
[0040] (1) Graphene coupling modification. 100 mg of graphene, 50 mg of carbon nanotubes and 100 mg of polydimethylsiloxane (PDMS) were placed in a weighing bottle, and vapor deposition was carried out at 250° C. for 1 h to obtain PDMS-modified graphene. Take the polydimethylsiloxane-modified graphene and wash it with absolute ethanol and deionized water several times to completely remove the unreacted polydimethylsiloxane, and make the washing solution neutral, and the product obtained is the function Graphene is modified to obtain a modified carbon material, which is fully dispersed and sealed and stored in an acetone solution with a solubility of 3 mg / ml for later use.
[0041] (2) Add silane leveling agent. The acetone solution of the modified carbon material was added to 7.2 g of polyether polyester modified organosiloxane leveling agent, mechanically stirred for 15 minutes, and ultrasonically dispersed by a probe ultrasonic instrument for 35 minutes.
[0042] (3) The s...
Embodiment 3
[0049] (1) Graphene coupling modification. Take 100 mg of graphene and 25 mg of carbon nanotubes in 60 mL of absolute ethanol to form a suspension, ultrasonically disperse for 4–6 h; add a certain amount of amino-terminated polydivinylsiloxane (AP) into the flask, and The system was ultrasonically dispersed for 60 min; finally, the beaker was taken out and dried in a vacuum oven. The modified AP after drying was taken out and placed in a Soxhlet extractor, extracted with acetone for 48 h at 80°C, fully dispersed, and sealed and stored in acetone solution at 5 mg / ml for later use.
[0050] (2) Add silane leveling agent. The acetone solution of the modified carbon material was added to 9.4 g of polymethylphenylsiloxane leveling agent, mechanically stirred for 20 minutes, and ultrasonically dispersed by a probe ultrasonic instrument for 40 minutes.
[0051] (3) The surface of the resin is softened. Add 15.6g of 601 (E-20) epoxy resin to be processed and 14.3g of mixed polyeste...
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