一种自黏性预浸料蜂窝夹层结构制备工艺研究
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许虎,男,硕士。主要研究方向:树脂基复合材料。E-mail:xh15011132@163.com

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许虎,E-mail:xh15011132@163.com

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TB332

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Preparation of a self-adhesive prepreg-honeycomb sandwich
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    摘要:

    将ACTECH?1210/SW220D自粘性透波环氧预浸料与Nomex蜂窝粘接,制备蜂窝夹层结构,采用滚筒剥离强度表征其粘接强度,研究不同固化工艺参数对粘接强度的影响规律。制备蜂窝夹层结构过程中,对加压时机、组装方式、施加压力大小等关键工艺参数进行了研究。实验结果表明,ACTECH?1210/SW220D预浸料与Nomex蜂窝粘接质量良好,滚筒剥离强度可达57 (N·mm)/mm。使用上下盖板组装对于粘接强度的提高有积极作用,相比于仅用下盖板的组装方式,上下盖板组装的夹层结构滚筒剥离强度提高了98.3%。热压罐成型工艺与模压成型工艺均适用于蜂窝粘接,对于热压罐成型工艺,在起始温度至65℃范围内加压较为适宜,对于模压成型工艺,在起始~100℃范围内加压较为适宜,施加压力范围可选择0.3 MPa~0.4 MPa。综合结果表明,采用ACTECH?1210/SW220D自粘性预浸料与蜂窝粘接,可以制备粘接强度良好的蜂窝夹层结构。

    Abstract:

    The ACTECH?1210/SW220D self-adhesive wave-transparent epoxy prepreg was bonded with Nomex honeycomb to prepare honeycomb sandwich structure. The adhesive strength was characterized by roller peel strength, and the influences of different curing process parameters on adhesive strength were studied. During the preparation of the honeycomb sandwich structure, the key process parameters such as the timing of pressurization, the method of assembly, and the magnitude of the applied pressure were studied. The experimental results show that the adhesive quality between ACTECH?1210/SW220D prepreg and Nomex honeycomb is good, and the peel strength of roller can reach 57(N·mm)/mm. The assembly of upper and lower cover plates has a positive effect on the bonding strength. Compared with the assembly method using only the lower cover plate, the peel strength of the sandwich structure roller assembled with the upper and lower cover plates is increased by 98.3%. Both the autoclave forming process and the compression molding process are suitable for honeycomb bonding. For autoclave molding process, it is more suitable to press in the initial range of~65℃, and for compression molding process, it is more suitable to press in the initial range of ~100℃, and the applied pressure range can be selected from 0.3 MPa to 0.4 MPa. The comprehensive results show that the use of ACTECH?1210/SW220D self-adhesive prepreg and honeycomb bonding can prepare a honeycomb sandwich structure with good bonding strength.

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许虎,王婷婷,张宝艳,等.一种自黏性预浸料蜂窝夹层结构制备工艺研究[J].民用飞机设计与研 究,2022(1):162-166XU Hu, WANG Tingting, ZHANG Baoyan, et al. Preparation of a self-adhesive prepreg-honeycomb sandwich[J]. Civil Aircraft Design and Research,2022,(1):162-166. ( in Chinese)

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  • 在线发布日期: 2022-04-17
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