林业工程学报2018，Vol.3Issue(2)：77-81,5.DOI:10.13360/j.issn.2096-1359.2018.02.013
聚磷酸铵对竹/聚丙烯纤维复合毡增强酚醛树脂基复合材料性能的影响
Effects of ammonium polyphosphat on properties of bamboo/polypropylene mats reinforced phenolic resin composites
摘要
Abstract
Structural insulated panels are used in a broad range of building materials due to the extremely low density, high strength,fast construction and satisfactory mechanical performance. In this study,the bamboo/polypropylene fi?ber mat reinforced phenolic resin based composite(FFM?PR),which was flame?retarded with ammonium polyphos?phat(APP),was developed. However,the flame resistances of such materials are not good due to the large offset of the flammable fiber component. Therefore, interest has been raised on the development of technologies that can im?prove the flame retardancy of such composites. The effects of the APP content on mechanical, flame retardant and thermal insulation properties of the composites were investigated. Compared with the unmodified composite,the mod?ulus of rupture and internal bonding strength of the composite with 25% APP loading decreased by 18.49% and 62.86%,respectively. The microstructures of the composites were examined by the scanning electron microscope (SEM). The results showed that the curing ability of phenolic resin was destroyed by the APP,resulting in the degra?dation of mechanical properties. The flame retardancy property of the composite was tested according to cone calorim?eter and limiting oxygen index(LOI). The results showed that the heat release rate and total heat release reduced by 50.62% and 50.82%,respectively. Furthermore, the LOI of the composite was 29.7. All results indicated that the APP imparted good flame retardancy property to the composite. The thermal insulation properties of the composite with or without the APP were also examined by the thermal conductivity instrument, and the results showed that the addition of APP had no effect on the insulation of the composite.关键词
竹/聚丙烯纤维/酚醛树脂/阻燃性能/隔热性能Key words
bamboo/polypropylene fiber/phenolic resin/flame retardancy property/thermal insulation property分类
化学化工引用本文复制引用
唐启恒,方露,郭文静..聚磷酸铵对竹/聚丙烯纤维复合毡增强酚醛树脂基复合材料性能的影响[J].林业工程学报,2018,3(2):77-81,5.基金项目
浙江省与中国林业科学研究院省院合作林业科技项目(2017SY14). （2017SY14）
