Antistatic PEEK composite material and preparation method thereof
A composite material and antistatic technology, applied in the field of composite materials, can solve the problems of unimproved mechanical properties of PEEK resin, uneven distribution of carbon fibers, affecting the surface resistance of materials, etc., to achieve uniform surface resistance, improve surface activity, and reduce surface resistance. Effect
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Embodiment 1
[0015] The preparation method of the antistatic PEEK composite material comprises the following steps:
[0016] A. Dissolve 0.64 parts of PEEK with a degree of sulfonation of 80 in water, add 30 parts of chopped carbon fibers and 2 parts of carbon nanotubes, stir and heat to 90°C for 48 hours, filter, dry and pulverize;
[0017] B. 68 parts of PEEK powder and the powder obtained in step A are added to ethanol, and fully stirred to make all materials evenly blended;
[0018] C. Suction filtration, ethanol recovery, put the mixed material into the cavity of a hot-pressing mold at 395-400 ° C, and after melting, shape under a pressure of 10Mpa, and cool and demould;
[0019] D. The material after demoulding is kept at 250℃ for 60min, and the pressure of the whole heat preservation process is 4Mpa, and the finished product is obtained.
[0020] The properties of the prepared antistatic PEEK composite material were tested, and the test results are shown in Table 1.
Embodiment 2
[0022] The preparation method of the antistatic PEEK composite material comprises the following steps:
[0023] A. Dissolve 0.32 parts of PEEK with a degree of sulfonation of 70 in water, add 15 parts of chopped carbon fibers and 1 part of carbon nanotubes, stir and heat to 90°C for 48 hours, filter, dry and pulverize;
[0024] B, 84 parts of PEEK powder and the powder obtained in step A are added to ethanol, and fully stirred to make all materials evenly blended;
[0025] C, suction filtration, put the mixed material into the cavity of the hot-pressing mold at 395-400 ° C, after melting, shape under 10Mpa pressure, cool and demould;
[0026] D. The material after demoulding is kept at 250℃ for 60min, and the pressure of the whole heat preservation process is 4Mpa, and the finished product is obtained.
[0027] The properties of the prepared antistatic PEEK composite material were tested, and the test results are shown in Table 1.
Embodiment 3
[0029] The preparation method of the antistatic PEEK composite material comprises the following steps:
[0030] A. Dissolve 0.53 parts of PEEK with a sulfonation degree of 75 in water, add 25 parts of chopped carbon fibers and 1.5 parts of carbon nanotubes, stir and heat to 90°C for 48 hours, filter, dry and pulverize;
[0031] B. 73.5 parts of PEEK powder and the powder obtained in step A are added to ethanol, and fully stirred to make all materials evenly blended;
[0032] C, suction filtration, put the mixed material into the cavity of the hot-pressing mold at 395-400 ° C, after melting, shape under 10Mpa pressure, cool and demould;
[0033] D. The material after demoulding is kept at 250℃ for 60min, and the pressure of the whole heat preservation process is 4Mpa, and the finished product is obtained.
[0034] The properties of the prepared antistatic PEEK composite material were tested, and the test results are shown in Table 1.
[0035]
[0036] Remarks: Friction and...
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