A kind of graphene/polyester thermoplastic elastomer composite material and preparation method thereof
A technology of thermoplastic elastomers and composite materials, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of environmental pollution, limited practical application range of materials, poor thermal stability, etc., and achieve improved electrical and thermal conductivity and mechanical properties Performance, excellent mechanical properties and biodegradability, the effect of improving mechanical properties and thermal stability
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Embodiment 1
[0033] A graphene / polyester thermoplastic elastomer composite material, which is prepared by the following method:
[0034](1) Preparation of rGO / hydroxyl-terminated crystalline prepolymer A
[0035] Put 0.6787g GO into a reactor containing 54.08g (0.6mol) 1,4-butanediol, magnetically stir for 30min, and ultrasonically disperse for 60min to obtain a GO / 1,4-butanediol mixture. Add 59.05g (0.5mol) of succinic acid into the reactor, under the protection of nitrogen, stir and raise the temperature to 140°C until the material is completely melted, then raise the temperature to 180°C step by step, and perform the esterification reaction for 2 hours. When the water output reaches 90% of the theoretical value, add 0.2263g p-toluenesulfonic acid, 0.2263g antioxidant 168 / 1010 compound and 2.0361g hydroquinone, and raise the temperature to 220°C in stages. The reaction was continued for 3.5 hours under the conditions to obtain rGO / hydroxyl-terminated crystalline prepolymer A with an aci...
Embodiment 2
[0041] A graphene / polyester thermoplastic elastomer composite material, which is prepared by the following method:
[0042] (1) Preparation of rGO / hydroxyl-terminated crystalline prepolymer A
[0043] Put 0.6382g GO into a reactor containing 47.32g (0.525mol) 1,4-butanediol, magnetically stir for 30min, and ultrasonically disperse for 60min to obtain a GO / 1,4-butanediol mixture. Add 59.05g (0.5mol) of succinic acid into the reactor, under the protection of nitrogen, stir and raise the temperature to 140°C until the material is completely melted, then raise the temperature to 180°C step by step, and perform the esterification reaction for 2 hours. When the water output reaches 90% of the theoretical value, add 0.3191g p-toluenesulfonic acid, 0.3191g antioxidant 168 / 1010 compound and 1.9145g hydroquinone, and raise the temperature to 220°C in stages. The reaction was continued for 3.5 hours under the conditions to obtain rGO / hydroxyl-terminated crystalline prepolymer A with an ...
Embodiment 3
[0049] A graphene / polyester thermoplastic elastomer composite material, which is prepared by the following method:
[0050] (1) Preparation of rGO / hydroxyl-terminated crystalline prepolymer A
[0051] Put 0.7058g GO into a reactor containing 58.58g (0.65mol) 1,4-butanediol, magnetically stir for 30min, and ultrasonically disperse for 60min to obtain a GO / 1,4-butanediol mixture. Add 59.05g (0.5mol) of succinic acid into the reactor, under the protection of nitrogen, stir and raise the temperature to 140°C until the material is completely melted, then raise the temperature to 180°C step by step, and perform the esterification reaction for 2 hours. When the water output reaches 90% of the theoretical value, add 0.2353g of p-toluenesulfonic acid, 0.2353g of antioxidant 168 / 1010 compound and 2.1173g of hydroquinone, and raise the temperature to 220°C in stages. The reaction was continued for 3.5 hours under the conditions to obtain rGO / hydroxyl-terminated crystalline prepolymer A ...
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