Figure 6. Variation trend of small molecular fragment products of epoxy resin under the action of positive and negative Figure 6. Variation trend of small molecular fragment products of epoxy resin under the action of positive and negative high-energy particles. ( a ) Variation trend of small molecular fragment products of epoxy resin under the action of positive high-energy particles. ( a ) Variation trend of small molecular fragment products of epoxy resin under the action of positive high-energy particles; ( b ) Variation trend of small molecular fragment products of epoxy resin under the action of negative high-energy particles; ( b ) Variation trend of small molecular fragment products of epoxy resin under the action of negative high-energy particles. high-energy particles.