Abstract
To identify the influence of the content and surface treatment of nano-CaCO3 on the mechanical properties of nanometer calcium carbonate (nano-CaCO3)-filled glass fiber (GF)-reinforced polyphenylene sulfide ternary composites, the impact strength, flexural modulus, and strength were measured at room temperature. It was found that the notched impact strength and flexural strength of these composites increased with an increase of the nano-CaCO3 weight fraction (φ f ) when φ f was less than 2% and then they decreased, and the unnotched impact strength of these composites roughly nonlinearly increased with an addition of φ f , whereas the effect of φ f on the flexural modulus was insignificant. The impact strength and flexural strength for these filled systems with the particle surface pretreated with titanate coupler were greater than those of the filled systems with the particle surface pretreated with sttaric aicd.
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