【摘要】 柔性木塑复合材料作为一种柔软的、可弯曲的、可卷曲的新型木塑复合材料，在铺地材料、室内装饰等领域有广泛的发展和应用前景。以纳米CaCO₃和丁苯胶乳采用共沉积法制备纳米级复合粒子，对柔性木塑复合材料增韧改性。通过傅里叶红外光谱、扫描电镜等对其化学结构、断面形貌和力学性能等进行表征。结果表明，纳米级复合粒子成功制备，且当纳米CaCO₃与丁苯胶乳质量比为5∶3时，综合力学性能达到最佳。冲击强度、拉伸强度、断裂伸长率对比未经改性的柔性木塑复合材料分别提升了160.5%、56.8%、156.5%,复合材料韧性得到了大幅度提升。更多还原

【Abstract】 As a soft, bendable and curable new type of wood-plastic composite material, flexible wood-plastic composites had a wide range of development and application prospects in the fields of flooring materials and interior decoration.Nano-scale composite particles were prepared by co-deposition of nano-CaCO₃ and styrene butadiene latex to toughen flexible wood-plastic composites.The chemical structure, cross-sectional morphology and mechanical properties were characterised by Fourier infrared spectroscopy and scanning electron microscopy.The results show that the nanoscale composite particles are successfully prepared and that the best overall mechanical properties are achieved when the mass ration of nano-CaCO₃ and styrene butadiene latex is 5∶3.Impact strength, tensile strength and elongation at break of the toughened composite increase 160.5%,56.8%and 156.5%,respectively, comparing with the unmodified flexible wood-plastic composite, and the toughness of the composite is substantially improved.更多还原