Effects of Nano-Aluminum Nitride on the Performance of an Ultrahigh-Temperature Inorganic Phosphate Adhesive Cured at Room Temperature
Smart Structures and Advanced Composite Materials Lab, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
Science and Technology Research Institute, Harbin Engineering University, Harbin 150001, China
Institute of Petrochemistry, Heilongjiang Academy of Science, Harbin 150001, China
Department of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong 999077, China
Author to whom correspondence should be addressed.
Received: 19 September 2017 / Revised: 31 October 2017 / Accepted: 1 November 2017 / Published: 3 November 2017
Based on the optimal proportion of resin and curing agent, an ultrahigh-temperature inorganic phosphate adhesive was prepared with aluminum dihydric phosphate, aluminium oxide (
), etc. and cured at room temperature (RT). Then, nano-aluminum nitride (nano-AlN), nano-Cupric oxide (nano-CuO), and nano-titanium oxide (nano-TiO2
) were added into the adhesive. Differential scanning calorimetry was conducted using the inorganic phosphate adhesive to analyze the phosphate reactions during heat treatment, and it was found that 15 wt % nano-AlN could clearly decrease the curing temperature. Scanning electron microscopy was used to observe the microphenomenon of the modified adhesive at ultrahigh-temperature. The differential thermal analysis of the inorganic phosphate adhesive showed that the weight loss was approximately 6.5 wt % when the mass ratio of resin to curing agent was 1:1.5. An X-ray diffraction analysis of the adhesive with 10% nano-AlN showed that the phase structure changed from AlPO4
(11-0500) to the more stable AlPO4
(10-0423) structure after heat treatment. The shear strength of the adhesive containing 10% nano-AlN reached 7.3 MPa at RT due to the addition of nano-AlN, which promoted the formation of phosphate and increased the Al3+
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Ma, C.; Chen, H.; Wang, C.; Zhang, J.; Qi, H.; Zhou, L. Effects of Nano-Aluminum Nitride on the Performance of an Ultrahigh-Temperature Inorganic Phosphate Adhesive Cured at Room Temperature. Materials 2017, 10, 1266.
Ma C, Chen H, Wang C, Zhang J, Qi H, Zhou L. Effects of Nano-Aluminum Nitride on the Performance of an Ultrahigh-Temperature Inorganic Phosphate Adhesive Cured at Room Temperature. Materials. 2017; 10(11):1266.
Ma, Chengkun; Chen, Hailong; Wang, Chao; Zhang, Jifeng; Qi, Hui; Zhou, Limin. 2017. "Effects of Nano-Aluminum Nitride on the Performance of an Ultrahigh-Temperature Inorganic Phosphate Adhesive Cured at Room Temperature." Materials 10, no. 11: 1266.
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