Modified carbon fiber and preparation of modified carbon fiber and nylon 6 composite materials
A technology for modifying carbon and carbon fiber, which is applied in the fields of carbon fiber, fiber processing, textiles and paper making, etc. It can solve difficult chemical bonding of PA6 matrix, poor wettability and bonding between CF surface and PA6 matrix, and restrict CF/PA6 composite materials. application and other issues to achieve the effect of increasing the degree of disorder, improving the interfacial compatibility and bonding, and improving the heat and humidity resistance and mechanical properties
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[0036] 1. CF surface pretreatment
[0037] (1) Cut 10 sections of CF yarns each with a length of 3 meters, dry, weigh, and number them. The heating device in the constant temperature oil bath experiment, open the oil bath in advance to adjust the temperature to a constant, wrap the CF on the steam outlet end of the extraction tube, take 150ml acetone solution into the extraction bottle, connect the condenser tube to tap water, assemble and extract The bottle, extraction tube and serpentine condenser tube are placed in a constant temperature oil bath. Table 1 shows the process of cleaning CF surface with acetone vapor, and explores the effect of system reaction time and reaction temperature (80°C is the critical temperature for acetone vapor to reach the steam outlet end) to clean the CF surface.
[0038] Table 1 Acetone steam cleaning treatment CF process
[0039] Serial number12345678910 Temperature(℃)80808080808095110125140 Time(h)1234522222
[0040] After the above experim...
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