Zhang Qinqin, Lin Xiaoqi, Chen Weisheng, Zhang Heng, Han Dezhi
Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
Polymers (Basel). 2020 Jan 5;12(1):107. doi: 10.3390/polym12010107.
Many achievements have been made on the research of composite polyurethane foams to improve their structure and mechanical properties, and the composite foams have been widely utilized in building insulation and furniture. In this work, rigid polyurethane foams (RPUFs) with the addition of different fillers (nano-SiO, peanut shell, pine bark) were prepared through the one-step method. The effects of inorganic nano-SiO and organic biomass on foam properties were evaluated by means of physical and chemical characterization. The characterization results indicate that the compressive strength values of prepared foams could fully meet the specification requirement for the building insulation materials. The inorganic and organic fillers have no effect on the hydrogen bonding states in composite RPUFs. Furthermore, compared to the biomass fillers, the addition of nano-SiO greatly influenced the final residual content of the fabricated foam. All composite foams exhibit closed-cell structure with smaller cell size in comparison with the parent foam. The prepared composite foams have the potential for utilization in building insulation.
在复合聚氨酯泡沫材料的研究方面已经取得了许多成果，以改善其结构和力学性能，并且这种复合泡沫材料已广泛应用于建筑保温和家具领域。在这项工作中，通过一步法制备了添加不同填料（纳米二氧化硅、花生壳、松树皮）的硬质聚氨酯泡沫（RPUF）。通过物理和化学表征手段评估了无机纳米二氧化硅和有机生物质对泡沫性能的影响。表征结果表明，所制备泡沫的抗压强度值完全能够满足建筑保温材料的规格要求。无机和有机填料对复合RPUF中的氢键状态没有影响。此外，与生物质填料相比，纳米二氧化硅的添加对所制备泡沫的最终残余含量有很大影响。与母体泡沫相比，所有复合泡沫均呈现闭孔结构且泡孔尺寸更小。所制备的复合泡沫具有用于建筑保温的潜力。
