超细硫酸钡(BaSO_4)具有优异的物理和力学性能,在复合材料中应用广泛。主要综述了近十年来有关超细BaSO_4在聚合物基复合材料中的研究进展,着重叙述了超细BaSO_4的表面改性方法,及其对聚合物基复合材料的强度、韧性、热稳定性及流变行为等性能的影响规律,并分析了相关作用机理。 Ultra-fine barium sulfate (BaSO_4) has excellent physical and mechanical properties, widely used in composite materials. The research progress of ultrafine BaSO_4 in polymer-based composites has been reviewed in the recent ten years. The surface modification method of ultrafine BaSO_4 and its effects on the strength, toughness, thermal stability, Rheological behavior and other properties of the law, and analysis of the relevant mechanism.