Fe_2O_3/PA6复合材料的制备及性能研究

Study of Preparation and Property of Fe_2O_3/PA6 Composite

将通过液压-热晶法合成的纳米Fe2O3粒子加入到聚合反应体系中进行原位聚合,制得纳米Fe2O3/PA6复合材料。通过扫描电镜研究了纳米Fe2O3在PA6基体中的分散情况,将复合材料挤压成直径为1mm的细线,测试了其力学性能和热学性能。结果表明,纳米Fe2O3在基体中分散均匀,当纳米Fe2O3质量分数为16.7%时,复合材料的最大失重速率温度比纯PA6提高了16.0℃,热稳定性得到提高,拉伸强度和拉伸模量比纯PA6分别提高了27.78%和109%。

A novel nano-meter Fe2O3/PA6 composite was prepared by in-situ polymerization, in which nanometer Fe2O3 particles were prepared by means of hydraulic-thermal crystasllizing. The dispersion of Fe2O3 in PA6 matrix was studied by means of SEM. The composite was made into 1 mm diameter threads by compression moulding, and the mechanical properties and thermal degradation of the threads were measured, The results showed nano-meter Fe203 dispersed well in the matrix, and when the mass percentage of nano-meter Fe2O3 was 16.7 %, the temperature of maximum weight loss rate of the composite was 16℃ higher than that of PA6, and the tensile strength and modulus of the composite were increased by 27.78% and 109%, respectively, compared with pure PA6.