Composite material of silicon polymer and graphene oxide, high-strength impact-resistant epoxy resin material and preparation method thereof
A technology of composite materials and epoxy resin matrix, which is applied in the field of high-strength impact-resistant epoxy resin materials and its preparation, can solve the problems of high brittleness, high cross-linking density, and small molecular chain activity, so as to enhance toughness and improve The effect of tensile strength
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Embodiment 1
[0024] The preparation method of the composite material of silicon polymer and graphene oxide comprises the following steps: reacting the silicon polymer and the graphene oxide dispersion liquid of tetrahydrofuran at a temperature of 60° C. for 5 hours to obtain the product. The mass ratio of graphene oxide in the graphene oxide dispersion liquid is 0.3:0.05, wherein the mass percentage of graphene oxide in the tetrahydrofuran graphene oxide dispersion liquid is 0.1%.
[0025] The diameter of graphene oxide in the graphene oxide dispersion in tetrahydrofuran is 100 nm.
[0026] The silicon polymer is prepared by the following method:
[0027] SiO was added to aqueous sodium hydroxide solution at room temperature 2 , then stirred and reacted for 3h, then added HCl, THF and NaCl to react for 30min, then stood still for 10min to obtain the upper layer organic solution, then dehydrated, suction filtered, and distilled to obtain the silicon polymer;
[0028] The concentration of ...
Embodiment 2
[0036] A method for preparing a composite material of a silicon polymer and graphene oxide, comprising the following steps: reacting a silicon polymer and a graphene oxide dispersion liquid of tetrahydrofuran at a temperature of 75°C for 4 hours, and the silicon polymer and tetrahydrofuran The mass ratio of graphene oxide in the graphene oxide dispersion liquid is 0.3:0.5, wherein the mass percentage of graphene oxide in the tetrahydrofuran graphene oxide dispersion liquid is 0.5%.
[0037] The diameter of graphene oxide in the graphene oxide dispersion in tetrahydrofuran was 5 μm.
[0038] The silicon polymer is prepared by the following method:
[0039] SiO was added to aqueous sodium hydroxide solution at room temperature 2 , then stirred and reacted for 4h, then added HCl, THF and NaCl to react for 30min, then stood still for more than 10min to obtain the upper layer organic solution, then dehydrated, suction filtered, and distilled to obtain the silicon polymer;
[0040...
Embodiment 3
[0049] A method for preparing a composite material of a silicon polymer and graphene oxide, comprising the following steps: reacting a silicon polymer and a graphene oxide dispersion liquid of tetrahydrofuran at a temperature of 70° C. for 4.5 hours, and the silicon polymer and tetrahydrofuran The mass ratio of graphene oxide in the graphene oxide dispersion liquid is 0.3:0.1, wherein the mass percentage of graphene oxide in the graphene oxide dispersion liquid in tetrahydrofuran is 0.2%.
[0050]The diameter of graphene oxide in the graphene oxide dispersion liquid in tetrahydrofuran was 1 μm.
[0051] The silicon polymer is prepared by the following method:
[0052] SiO was added to aqueous sodium hydroxide solution at room temperature 2 , then stirred and reacted for 3.5h, then added HCl, tetrahydrofuran and NaCl to react for 30min, then stood still for more than 10min to obtain the upper layer organic solution, then dehydrated, suction filtered, and distilled to obtain th...
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