Fabrication and Testing of Soy-Based Polyurethane Foam with Flame Retardant Properties
Fabrication and Testing of Soy-Based Polyurethane Foam with Flame Retardant Properties
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DOI：
10.1007/s10924-020-01930-5
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发表时间：
2020-11-01
影响因子：
5.3
通讯作者：
Bajwa, Sreekala
中科院分区：
文献类型：
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作者：
Dhaliwal, Gurjot S.;Bajwa, Dilpreet S.;Bajwa, Sreekala
生物基泡沫，特别是大豆基聚氨酯，在住宅和商业应用中获得了很大的吸引力。由于大豆基泡沫广泛用作建筑工业中的绝缘材料，因此它必须表现出上级机械、绝缘和阻燃性能。在这项研究中，大豆基聚氨酯泡沫的制备与纳米粘土（CloCloCloNa+）在五个不同的浓度从2%到10%不等。使用100%大豆基多元醇制造泡沫。研究了添加纳米粘土对泡沫材料的热性能、力学性能和阻燃性能的影响。使用扫描电子显微镜测试制造的泡沫样品由于添加纳米粘土而导致的它们的形态差异。观察到随着纳米粘土的加入，泡沫的泡孔尺寸减小并且变得更加均匀。因此，发现泡沫样品的机械强度显著提高。此外，观察到添加纳米粘土导致在燃烧期间形成炭层。炭层有效地将泡沫的燃烧速率降低了38%。总体而言，可以得出结论，纳米粘土的添加使大豆基PU泡沫具有优异的机械和阻燃性能。上级性能。
Bio-based foams, particularly soy-based polyurethane, have gained a lot of traction for residential and commercial applications. Since the soy-based foam is widely used as insulation material in the construction industry, it must exhibit superior mechanical, insulation, and fire-retardant properties. In this study, soy-based PU foams were prepared with the addition of nanoclay (Cloisite Na +) in five different concentrations varying from 2 to 10%. The foam was fabricated using 100% soy-based polyol. The effects of adding nanoclay were investigated on the thermal, mechanical, and flame retardant properties of the foam. The fabricated foam samples were tested for differences in their morphology due to the addition of nanoclays using a scanning electron microscope. It was observed that with the addition of the nanoclays, the cell size of the foams was reduced and became more uniform. So, significant improvement was found in the mechanical strength of the foam samples. Also, it was observed that adding of nanoclays lead to the formation of a char layer during combustion. The char layer was effective in reducing the rate of burning of the foam by 38%. Overall, it was concluded that the addition of nanoclays resulted in the soy-based PU foam with superior mechanical and flame retardant properties.