Zhaohui Lu, Mei Liang, Shuang Xia, Zhengguang Heng, Zhuo Shi, Shengtai Zhou and Huawei Zou
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引用次数: 0
Abstract
Epoxy resin exhibits poor thermal stability, which significantly restricts their application in thermal protection sectors. To solve this problem, siloxane was used to modify epoxy resin by constructing an epoxy–siloxane hybrid network to improve char residue and ablative performance. The results show that the 800 °C char residue of siloxane-modified epoxy resin reached 36.4% in a nitrogen atmosphere and 12.4% in an air atmosphere, representing increases of 98.9% and 726.7% compared with the unmodified counterpart, respectively. The mass ablative rate of the modified epoxy resin was 0.0515 g s−1, which was 55.9% lower than that of pure epoxy resin. This work provides a strategy to improve the thermal stability and ablative performance of epoxy resin, which exhibits a promising application in industrial sectors for thermal protection purposes.
环氧树脂热稳定性差，严重制约了其在热防护领域的应用。为了解决这一问题，采用硅氧烷对环氧树脂进行改性，通过构建环氧-硅氧烷杂化网络来改善炭渣和烧蚀性能。结果表明，硅氧烷改性环氧树脂800℃炭渣在氮气气氛下达到36.4%，在空气气氛下达到12.4%，分别比未改性环氧树脂提高了98.9%和726.7%。改性环氧树脂的质量烧蚀率为0.0515 g s−1，比纯环氧树脂降低55.9%。本研究为提高环氧树脂的热稳定性和烧蚀性能提供了一种策略，环氧树脂在工业热防护领域具有广阔的应用前景。
期刊介绍：
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors
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