植物纤维纸蜂窝芯材的制备及性能

发布时间：2018-01-13 03:37

本文关键词：植物纤维纸蜂窝芯材的制备及性能　出处：《工程塑料应用》2017年08期 　论文类型：期刊论文

【摘要】：分别采用"两步法"和"三步法"两种不同工艺方法制备植物纤维纸蜂窝芯材,通过测试压缩性能、剪切性能研究两种工艺方法所制得芯材的力学性能;测试水迁移和垂直燃烧研究芯材的物理阻燃性能;比较芯材的力学性能和物理性能,选出两种方法中效果较好的工艺方法。结果表明,三步法工艺中芯材的压缩强度比两步法增加了52%;L向剪切强度增加了47.6%,W向剪切强度增加了72%。水迁移测试中两步法水迁移孔格数平均值为5,三步法平均值为0,垂直燃烧测试中两步法平均烧焦长度为41.8 mm,比"三步法"烧焦长度长12.8 mm。通过扫描电子显微镜测试分析了三步法力学性能较好的原因。综合比较芯材的力学性能和物理性能,三步法工艺好。
[Abstract]:The honeycomb core of vegetable fiber paper was prepared by "two-step method" and "three-step method", respectively. The mechanical properties of the core were studied by testing the compression properties and shear properties. The physical flame retardancy of the core material was studied by water migration and vertical combustion. By comparing the mechanical and physical properties of the core material, the results show that the compression strength of the core material in the three-step process is 52% higher than that of the two-step method. The L-direction shear strength increases by 47.6W and the shear strength increases by 72.The average number of water migration holes in the two-step method is 5, and the three-step method is zero. In the vertical combustion test, the average charring length of the two-step method is 41.8 mm. The reason for the better mechanical properties of the three-step method is analyzed by scanning electron microscope (SEM). Compared with the mechanical and physical properties of the core material, the three-step process is good.
【作者单位】：中航复合材料有限责任公司;
【分类号】：TB33
【正文快照】： 夹层结构复合材料是一种典型的高比强度、高比刚度的结构复合材料,它将面板的高强度和高模量与夹芯材料的轻质和高刚度有机结合起来,在航空航天、轨道交通等领域得到了广泛的应用。蜂窝夹芯材料作为夹层复合材料芯材的一种,因形同天然蜂窝而得名,它是从增强材料成型,再经过浸

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