Method for modifying epoxy resin through amino-terminated hyperbranched polymer-grafted graphene oxide
A hyperbranched polymer and amino-terminated hyperbranched technology, applied in the field of material chemistry, can solve problems such as pollution, high cost, and complicated operation process, and achieve the effects of simple process, easy operation, and simple preparation process
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Embodiment 1
[0021] (1) Add 0.5g of graphite oxide and 200ml of distilled water into a 250ml beaker, and disperse for 30min in an ultrasonic environment to form a uniformly dispersed graphene oxide mixture.
[0022] (2) Weigh 10ml of triethylenetetramine, place it in a 250ml three-necked flask equipped with a stirrer, thermometer, condenser and dropping funnel, add N,N-dimethylformamide and stir to make triethylenetetramine just Until it is completely dissolved, heat up to 60°C and slowly add a mixture of 2.3mL methyl methacrylate and 5.0mL methanol dropwise for 2 hours, continue to heat up to 100°C, and react for 8 hours to obtain a light yellow viscous Transparent amino-terminated hyperbranched polymer HBP-NH 2 ; Then add 5mL of the graphene oxide mixture prepared in step (1) and 8g of NaOH, and adjust the pH value to 7, continue ultrasonic dispersion at 100°C for 6 hours, distill out the methanol and cool to room temperature, add a large amount of water to make The product was precipit...
Embodiment 2
[0026] (1) Add 0.5g of graphite oxide and 200ml of distilled water into a 250ml beaker, and disperse for 30min in an ultrasonic environment to form a uniformly dispersed graphene oxide mixture.
[0027] (2) Weigh 10ml of triethylenetetramine, place it in a 250ml three-necked flask equipped with a stirrer, thermometer, condenser and dropping funnel, add N,N-dimethylformamide and stir to make triethylenetetramine just Until it is completely dissolved, heat up to 60°C and slowly add a mixture of 2.3mL methyl methacrylate and 5.0mL methanol dropwise for 2 hours, continue to heat up to 100°C, and react for 8 hours to obtain a light yellow viscous Transparent amino-terminated hyperbranched polymer HBP-NH 2 ; Then add 5mL of the graphene oxide mixture prepared in step (1) and 8g of NaOH, and adjust the pH value to 7, continue ultrasonic dispersion at 100°C for 6 hours, distill out the methanol and cool to room temperature, add a large amount of water to make The product was precipit...
Embodiment 3
[0031] (1) Add 0.5g of graphite oxide and 200ml of distilled water into a 250ml beaker, and disperse for 30min in an ultrasonic environment to form a uniformly dispersed graphene oxide mixture.
[0032] (2) Weigh 10ml of triethylenetetramine, place it in a 250ml three-necked flask equipped with a stirrer, thermometer, condenser and dropping funnel, add N,N-dimethylformamide and stir to make triethylenetetramine just Until it is completely dissolved, heat up to 60°C and slowly add a mixture of 2.3mL methyl methacrylate and 5.0mL methanol dropwise for 2 hours, continue to heat up to 100°C, and react for 8 hours to obtain a light yellow viscous Transparent amino-terminated hyperbranched polymer HBP-NH 2; Then add 5mL of the graphene oxide mixture prepared in step (1) and 8g of NaOH, and adjust the pH value to 7, continue ultrasonic dispersion at 100°C for 6 hours, distill out the methanol and cool to room temperature, add a large amount of water to make The product was precipita...
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