聚氨酯涂层对复合材料层合板抗反复低速冲击性能的影响*

doi:10.11901/1005.3093.2015.570

材料研究学报

2016, Vol. 30

Issue (5): 379-387 DOI: 10.11901/1005.3093.2015.570

本期目录 | 过刊浏览

聚氨酯涂层对复合材料层合板抗反复低速冲击性能的影响*

岳海亮¹, 张国利¹(

), 王壮志², 郭瑞彦¹

1. 天津工业大学复合材料研究所教育部先进纺织复合材料共建重点实验室天津 300387
2. 威海光威复合材料股份有限公司威海 264200

Evaluation of Ressistance to Repeated Low-Velocity Impact of Composite Laminates with Polyurethane Coating

YUE Hailiang¹, ZHANG Guoli^1,^**(

), WANG Zhuangzhi², GUO Ruiyan¹

1. Key Laboratory of Advanced Textile Composites, Tianjin and Ministry of Education, Tianjin Polytechnic University, Tianjin, 300387, China
2. Weihai Guangwei Composites Material Co., Ltd, Weihai, 264200, China

引用本文:

岳海亮, 张国利, 王壮志, 郭瑞彦. 聚氨酯涂层对复合材料层合板抗反复低速冲击性能的影响*[J]. 材料研究学报, 2016, 30(5): 379-387.
Hailiang YUE, Guoli ZHANG, Zhuangzhi WANG, Ruiyan GUO. Evaluation of Ressistance to Repeated Low-Velocity Impact of Composite Laminates with Polyurethane Coating[J]. Chinese Journal of Materials Research, 2016, 30(5): 379-387.

全文: PDF(3378 KB) HTML

摘要:

本文采用模压成型工艺制备出三种不同厚度的复合材料层合板, 对其表面进行喷砂粗糙处理后喷涂相同厚度聚氨酯, 制备聚氨酯喷涂复合材料层合板。使用落锤冲击试验机反复冲击复合材料裸板与喷涂过聚氨酯的复合材料层合板, 直到其完全穿透, 通过超声波C扫描检测对冲击后试样的分层面积进行分析。结果表明: 随着冲击能量增大, 聚氨酯对复合材料层合板抗反复冲击性能的影响逐渐减弱, 冲击后试样的损伤面积逐渐增大; 随着层合板厚度的增加, 聚氨酯对复合材料层合板抗反复冲击性能的影响增强, 致使试样冲击后损伤面积减小。

关键词 ：复合材料, 聚氨酯涂层, 吸收能量, 冲击损伤面积, 最大冲击载荷, 抗反复冲击性能

Abstract：

The resistance to repeated low-velocity impact of PU coated composite laminates of different thickness was evaluated. The composite laminates were fabricated by compression molding method, and then were sand-blasted in order to increase their surface roughness, and finally were coated with PU of the same thickness. The composite laminates with and without PU coating were impacted repeatedly using a pressure-assisted Instron-Dynatup 9250 instrumented drop-weight impact tester until all the specimens were perforated, and then ultrasonic C-scan was used to detect the delimitation area after testing. It is observed that the influence of PU on the resistance to repeated impact of composite laminates is gradually decreasing after repeated impacting with the increasing of impacted energy, so the damage area of specimens are increasing after repeated impact. In addition, with the increasing thickness of composite laminates, the influence of PU acting on the resistance to repeated impact for all laminates is enhanced so that the damage area of specimens is gradually decreasing.

Key words： composite polyurethane coating absorbed energy impact damage area maximum impact force repeated impact performance

收稿日期: 2015-10-12

ZTFLH:

B332

基金资助:* 天津市科技计划项目13TXSYJC40500和天津市高等学校科技发展基金计划项目2012ZD02资助

作者简介: 本文联系人: 张国利, 研究员

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https://www.cjmr.org/CN/10.11901/1005.3093.2015.570 或 https://www.cjmr.org/CN/Y2016/V30/I5/379

表1 试样的结构

图1 [0/90]6-PU在不同冲击能量下的冲击力-时间曲线和冲击力-位移曲线

图2 5 J反复冲击时的冲击力-冲击时间曲线

图3 6.5 J反复冲击时的冲击力-冲击时间曲线

图4 7.5 J反复冲击时的冲击力-冲击时间曲线

图5 不同冲击能量反复冲击过程中最大冲击载荷随冲击次数的变化

表2 不同冲击能量反复冲击穿透[0/90]6 和[0/90]-PU6时的次数

图6 7.5 J反复冲击[0/90]6-PU (a) and [0/90]6 (b) 的冲击力-冲击时间曲线

图7 7.5 J反复冲击[0/90]7-PU (a) and [0/90]7 (b)的冲击力-冲击时间曲线

图8 7.5 J反复冲击[0/90]8 -PU (a) and [0/90]8 (b) 的冲击力-冲击时间曲线

图9 不同层合板厚度试样在7.5 J反复冲击过程中冲击背面损伤图

图10 不同厚度聚氨酯层合板的冲击载荷-冲击次数-冲击能量曲线

图11 [0/90]8和[0/90]8-PU反复冲击后的C扫描图像

图12 不同层合板厚度试样的损伤面积随冲击次数的变化

表3 不同厚度的试样完全穿透需要的冲击次数

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