【摘要】 以硅烷偶联剂KH560作为改性剂,采用化学合成方法合成了KH560改性酚醛树脂。通过傅里叶变换红外光谱、热重分析以及力学性能测试研究了硅烷偶联剂KH560对酚醛树脂热性能和力学性能的影响。结果表明:当w(KH560)为2.5%时,改性酚醛树脂在318℃时开始分解,树脂质量损失约为17.0%,耐热性能较好;与改性前相比,改性酚醛树脂的拉伸强度提高了32.9 MPa,冲击强度提高了4.03 kJ/m~2,力学性能得到了改善。更多还原

【Abstract】 The phenolic resin was modified by silane coupling agent KH560 to prepare KH560 modified phenolic resin. The effect of KH560 on the thermal and mechanical properties of phenolic resin were investigated by Fourier transform infrared spectroscope, thermogravimetry analyzer, and mechanical property tests. The results show that the phenolic resin decomposes at 318 ℃ when the mass fraction of KH560 modifier is 2.5%, and the mass loss is approximately 17.0%, which represents better thermal resistance. The mechanical properties of the resin modified such as the tensile strength and the impact strength are improved by 32.9 MPa and 4.03 kJ/m~2 respectively.更多还原