FIELD: technological processes.
SUBSTANCE: method includes the following: viscose or polyacrylonitrile technical thread is soaked with the mixture of epoxy resin ED-20 and hardener polyethylene polyamine with mass ratio 9:1. Then bundle is formed out of separately soaked technical threads with the number of threads of 100-140 and is thermally treated at the temperature of 30-70°C. At the same time the shaped bundle is exposed to ultraviolet radiation with power of 0.70-0.80 Watt/m3 at the wave length of λ=253.7 for 8-12 minutes, and then hardened.
EFFECT: increases breaking stress during static bending of materials with polyacrylonitrile technical thread.
2 tbl
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| METHOD OF MANUFACTURING REINFORCED POLYMER COMPOSITE MATERIALS | 1994 |
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