The fracture surface of the sample was sputter-coated with gold layer before examination, and the morphologies of the composites were obtained by using TESCAN VEGA TS 5136MM SEM (Czech), and the accelerating voltage was 20 kV.
The fracture surface of the sample was sputter-coated with goldlayer before examination, and the morphologies of the compositeswere obtained by using TESCAN VEGA TS 5136MM SEM (Czech),and the accelerating voltage was 20 kV.