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Tensile properties of PEEK/ZnO and modified PEEK/ZnO nanocomposites: (a) elastic modulus, (b) tensile strength, (c) strain at break, and (d) toughness. The values in parentheses of (a) indicate the weight percentage of ZnO. PCOZnO: PEEK−CO−O−CH2−ZnO. Reproduced from [179] with permission of American Chemical Society.
