一种用于测定碳纤维/聚苯硫醚复合材料界面剪切强度的装置的改进与评估

Improvement and Evaluation of a Device That Determines the Interfacial Shear Strength of Carbon Fiber/Polyphenylene Sulfide Composites.

作者信息

Dong Yuan, Yang Jia-Cao, Wang Xiao-Jun, Zhang Gang, Zhang Mei-Lin, Wei Zhi-Mei, Long Sheng-Ru, Yang Jie

机构信息

College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China.

Analytical and Testing Center, Sichuan University, Chengdu 610064, China.

出版信息

Polymers (Basel). 2023 Sep 13;15(18):3749. doi: 10.3390/polym15183749.

DOI:10.3390/polym15183749

PMID:37765604

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10537476/

Abstract

This study improved homemade apparatus for characterizing the interfacial shear strength (IFSS) of carbon-fiber-reinforced polyphenylene sulfide (PPS/CF) composites. The upgraded generation II experimental device includes a newly developed experimental clamp for samples, as well as testing systems. Compared with the initial generation I apparatus and the commercial Toei instrument, the generation II device is easier and more efficient to operate. The average interfacial adhesion values obtained using these devices were consistently approximately 40 MPa, with relatively low data scatter, showing excellent repeatability and applicability during microbond tests. Notably, the generation II experimental device was equipped with an additional high-frequency data-capturing tool to identify the debonding peak force more precisely, which demonstrated a higher interfacial shear strength of 42.81 MPa during testing. Therefore, the new instrument was able to reflect the change in the interfacial stress state during the interface debonding process more accurately and reliably.

摘要

本研究改进了用于表征碳纤维增强聚苯硫醚（PPS/CF）复合材料界面剪切强度（IFSS）的自制装置。升级版的第二代实验装置包括新开发的样品实验夹具以及测试系统。与初代装置和商用东荣仪器相比，第二代装置操作起来更简便、高效。使用这些装置获得的平均界面粘附值始终约为40MPa，数据离散度相对较低，在微粘结测试中显示出优异的重复性和适用性。值得注意的是，第二代实验装置配备了额外的高频数据采集工具，以更精确地识别脱粘峰值力，在测试过程中其界面剪切强度更高，为42.81MPa。因此，新仪器能够更准确、可靠地反映界面脱粘过程中界面应力状态的变化。