粗甘油生物基聚氨酯泡沫的改性研究Modification of crude glycerol bio-based polyurethane foams
刘利威,常春,戚小各,白净,李攀,陈俊英
摘要(Abstract):
为了制备增强型粗甘油基聚氨酯泡沫(CGPU),将粉煤灰、硅藻土2种填料引入聚氨酯泡沫对其进行改性,得到了粗甘油基聚氨酯复合材料。通过试验表征,考察了2种填料填充量对聚氨酯复合材料发泡参数、微观结构以及聚氨酯材料性能的影响。结果表明:粉煤灰、硅藻土的加入均能够改善聚氨酯泡沫的压缩强度和热稳定性。当粉煤灰和硅藻土的填充量分别为3%和5%时,压缩强度分别增大为317和297 kPa。与粉煤灰相比,硅藻土的填充提高了泡沫的热稳定性。粉煤灰和硅藻土2种填料可用于制备具有高压缩强度和良好热稳定性的聚氨酯复合材料。
关键词(KeyWords): 粗甘油;多元醇;聚氨酯泡沫塑料;粉煤灰;硅藻土
基金项目(Foundation): 河南省自然科学基金(162300410247);; 河南省杰出外籍科学家工作室生物质资源加工与高效利用(GZS2018004)
作者(Author): 刘利威,常春,戚小各,白净,李攀,陈俊英
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