In this paper, two types of reinforcement agents of fibrous palygorskite (PAL) and rhombohedral dolomite (DOL) have been used together by simply mixing in order to improve the mechanical and thermal properties of waterborne polyurethane (WPU). A great synergistic effect between 1D PAL and 3D DOL on reinforcing WPU matrix has been observed. In comparison to neat WPU, the tensile strength of such three components WPU-based composite has been significantly improved by 178% with an addition of 4 wt% PAL and 6 wt% DOL. Furthermore, its initial decomposition temperature also has been increased 55 °C. The formation of 3D conjugated filler network with 1D PAL inserted into the 3D DOL network could be attributed to such synergistic reinforcement of WPU. This work provides a good example and eco-friendly pathway for the preparation of high performance polymer composites by simply using micro/nano-fillers with different dimension together.

本文通过简单地混合在一起使用了两种类型的纤维坡缕石（PAL）和菱形白云石（DOL）增强剂，以改善水性聚氨酯（WPU）的机械性能和热性能。已经观察到1D PAL和3D DOL在增强WPU矩阵方面有很大的协同作用。与纯净的WPU相比，添加了4 wt％的PAL和6 wt％的DOL，基于WPU的这三种成分的复合材料的抗张强度已显着提高了178％。此外，其初始分解温度也提高了55°C。具有插入到3D DOL网络中的1D PAL的3D共轭填充物网络的形成可以归因于WPU的这种协同增强。