Ren Xinlin, Mei Yi, Lian Peichao, Xie Delong, Deng Weibin, Wen Yaling, Luo Yong
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China.
Polymers (Basel). 2019 Jan 22;11(2):193. doi: 10.3390/polym11020193.
A simple and novel route is developed for fabricating BP-based composite materials to improve the thermo-stability, flame retardant performances, and mechanical performances of polymers. Black phosphorene (BP) has outstanding flame retardant properties, however, it causes the mechanical degradation of waterborne polyurethane (WPU). In order to solve this problem, the graphene is introduced to fabricate the black phosphorene/graphene (BP/G) composite material by high-pressure nano-homogenizer machine (HNHM). The structure, thermo-stability, flame retardant properties, and mechanical performance of composites are analyzed by a series of tests. The structure characterization results show that the BP/G composite material can distribute uniformly into the WPU. The addition of BP/G significantly improves the residues of WPU in both of TG analysis (5.64%) and cone calorimeter (CC) test (12.50%), which indicate that the BP/G can effectively restrict the degradation of WPU under high temperature. The CC test indicates that BP/G/WPU has a lower peak release rate (PHRR) and total heat release (THR), which decrease by 48.18% and 38.63%, respectively, than that of the pure WPU, respectively. The mechanical analysis presents that the Young's modulus of the BP/G/WPU has an increase of seven times more than that of the BP/WPU, which indicates that the introduce of graphene can effectively improve the mechanical properties of BP/WPU.
开发了一种简单且新颖的路线来制备基于黑磷的复合材料，以提高聚合物的热稳定性、阻燃性能和机械性能。黑磷（BP）具有出色的阻燃性能，然而，它会导致水性聚氨酯（WPU）的机械降解。为了解决这个问题，通过高压纳米均质机（HNHM）引入石墨烯来制备黑磷/石墨烯（BP/G）复合材料。通过一系列测试分析了复合材料的结构、热稳定性、阻燃性能和机械性能。结构表征结果表明，BP/G复合材料能够均匀地分散在WPU中。在热重分析（TG）（5.64%）和锥形量热仪（CC）测试（12.50%）中，BP/G的添加显著提高了WPU的残炭率，这表明BP/G能够有效地抑制WPU在高温下的降解。CC测试表明，BP/G/WPU具有较低的热释放峰值速率（PHRR）和总热释放量（THR），分别比纯WPU降低了48.18%和3&63%。力学分析表明，BP/G/WPU的杨氏模量比BP/WPU提高了七倍多，这表明石墨烯的引入能够有效地改善BP/WPU的力学性能。
