High interlaminar shear strength epoxy resin base composite material and preparation method thereof
A technology of epoxy resin and shear strength, which is applied in the field of preparation of epoxy resin-based composite materials with shear strength between high-rise buildings, can solve the problems of only 90.6MPa, many types of raw materials, fiber damage, etc., and achieve the improvement of mechanical properties, Easy to promote, combined with strong effects
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Embodiment 1
[0018] Embodiment 1: the epoxy resin (AG-80 of 95 mass parts, produced by Shanghai Resin Factory), the phenolic resin 2123 (produced by Wuxi Guangming Chemical Factory) of 5 mass parts, the DDS of 30 mass parts, the acetone mixing and dissolving of 80 mass parts A homogeneous matrix solution is then poured into the dipping tank. Let 60 parts by mass of PAN-based carbon fiber pass through the above-mentioned matrix solution for 8 seconds to make a unidirectional non-woven fabric, and then place it at room temperature for 12 hours to completely volatilize the acetone in the glue solution, stack it in the same direction to form a plate, and then place the sample Put it into a mold and place it in an autoclave for curing (the curing process conditions are as follows: pre-evacuate to -0.1MPa, then raise the temperature to 100°C at a heating rate of 1°C / min, and pass N 2 pressurize to 0.4MPa, and continue to heat up to 130°C for pre-curing for 40 minutes; continue to heat up and pos...
Embodiment 2
[0019] Embodiment 2: the epoxy resin (AG-80 of 90 mass parts, produced by Shanghai Resin Factory), the phenolic resin 2123 (produced by Wuxi Guangming Chemical Factory) of 10 mass parts, the DDS of 30 mass parts, the acetone mixed dissolving of 100 mass parts A homogeneous matrix solution is then poured into the dipping tank. Let 70 parts by mass of pitch-based carbon fiber pass through the above matrix solution to make a unidirectional non-woven fabric, and then place it at room temperature for 24 hours to completely volatilize the acetone in the glue solution, stack it in the same direction to form a plate, and then put the sample on Put it into a mold and place it in an autoclave for curing (the curing process conditions are as follows: pre-evacuate to -0.05MPa, then raise the temperature to 100°C at a heating rate of 4°C / min, and feed N 2 Pressurize to 0.8MPa, continue to heat up to 150°C for pre-curing, time 30min; continue to heat up, carry out post-curing at 220°C, time...
Embodiment 3
[0020] Embodiment 3: the epoxy resin (AG-80 of 75 mass parts, produced by Shanghai Resin Factory), the phenolic resin 2132 (produced by Wuxi Guangming Chemical Factory) of 25 mass parts, the DDS of 30 mass parts, the acetone mixed dissolving of 120 mass parts A homogeneous matrix solution is then poured into the dipping tank. Let 65 parts by mass of PAN-based carbon fiber pass through the above matrix solution to make a unidirectional non-woven fabric, and then place it at room temperature for 15 hours to completely volatilize the acetone in the glue solution, stack it in the same direction to form a plate, and then place the sample Put it into a mold and put it in an autoclave for curing (the curing process conditions are as follows: pre-evacuate to -0.08MPa, then raise the temperature to 95°C at a heating rate of 2°C / min, and feed N 2 Pressurize to 0.6MPa, continue to heat up to 140°C for pre-curing for 35 minutes; continue to heat up, and perform post-curing at 210°C for 2....
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