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Xu X, Peng J, Yang J, Hu D, Qian D, Chang Z, Tan Q, Li Y. Effects of high polyamic acid content and curing process on properties of epoxy resins. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Epoxy/polyamic acid (EP/PAA) adhesives with high polyimide precursor-PAA content have been synthesized and then cured. The structure, thermal, and adhesive properties were investigated by Fourier transform infrared spectroscopy, thermogravimetric analysis, and tensile shear test. The effects of PAA content and curing process on the tensile shear strength were also studied. The results showed that the addition of PAA improved the heat resistance and reduced the water absorption. EP/PAA adhesive kept good adhesion. A kind of EP/PAA composite adhesive with excellent comprehensive properties was prepared in this study.
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Affiliation(s)
- Xiaoyan Xu
- School of Materials Science and Engineering, Tongji University , Shanghai 201804 , China
| | - Jinchan Peng
- School of Materials Science and Engineering, Tongji University , Shanghai 201804 , China
| | - Jianjiang Yang
- Research and Development Department, Shaoxing Jucheng New Material Technology Co., Ltd , Shaoxing 312500 , China
| | - Dedong Hu
- College of Electromechanical Engineering, Qingdao University of Science and Technology , Qingdao 266061 , China
| | - Duoduo Qian
- School of Materials Science and Engineering, Tongji University , Shanghai 201804 , China
| | - Zhihong Chang
- School of Materials Science and Engineering, Tongji University , Shanghai 201804 , China
| | - Qinggang Tan
- School of Materials Science and Engineering, Tongji University , Shanghai 201804 , China
| | - Yan Li
- School of Materials Science and Engineering, Tongji University , Shanghai 201804 , China
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