Abstract
In this study, we prepared modified potassium titanate whiskers (MPTW) and aluminium oxide (Al2O3) nanoparticles-modified potassium titanate whiskers (AlNPs-MPTW), which were used as reinforcements to produce MPTW MC nylon and AlNPs-MPTW MC nylon, respectively, through in-situ polymerization. Then the thermodynamic stability and mechanical properties of these two kinds of nylon prepared and unmodified MC nylon were studied, proving that AlNPs-MPTW MC nylon possesses better performance. It was found that the prepared AlNPs-MPTW MC nylon with 0.1 wt% AlNP content and 1 wt% MPTW content delivered the optimal properties, specifically tensile strength 97±6 MPa, tensile modulus 3140±45 MPa, flexural strength 116±8 MPa, flexural modulus 3640±53 MPa, and notched impact strength 11.61 kJ/m2. The results showed that multiscale synergistic modified MC nylon possesses remarkable reinforcing and toughening effects, thereby enjoying very broad application prospects.
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