8 2018年8月
材料工程
过程工程学报
The Chinese Jourmal of Process Engineering
VoL.18 No.4 Aug.2018
DOI: 10.12034/j.issn.1009-606X.217341
Thermal conductivity property ofmetal based silicone resin coating composite GanqiangWANG2，JingfuWANG12"，Xinxin ZHANG2，Tao ZHANG3
1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, Beijing University of Technology Beijing 100124, China
2. Key Laboratory of Heat Transfer and Energy Conversion, Bejing MunicipalityBejing University fTechnoogy, Bejing 100124 China
3. Shengli Oilfield Victory Power Machinery Group Co., Ltd., Dongying, Shandong 257032, China
Abstract: The epoxy silicone resin was modified using zinc powder as heat conducting fller. Effect of zinc powder mass fraction on the thermal conductivity ofmodified epoxy organosilicon dry film coating was researched and the effect of coating thickness on the thermal conductivity of carbon steel was analyzed. The results showed that The thermal conductivity of silicone coating is around 0.19 W/(m-K), and heat-resistant temperature is above 20o C Thus, the coating can ensure the long-term coating work in the low temperature flue gas waste heat recovery heat exchanger surface without any thermal reaction. Addition of zinc powder can improve the thermal conductivity of modified epoxy organosilicon coating. As the zinc powder content is 25wt%, the thermal conductivity of the coating material can increase 84% to 0.35 W/(m-K). Generally,with the increase of coating thickness, the thermal conductivity of metal matrix composite silicone coating decreases.The thermal conductivity ofuncoated carbon steel was 47.59 W/(m-K), and the thermal conductivity of the coated carbon steel decreased to 34.33 W/(m-K) when the coatingthicknesswas200μm.
Key words: organosilicon resin;heatconduction; composites; coating thickness 金属基有机硅树脂涂层复合材料的导热性能
王赶强12，王景肃12，张新欣12，张涛” 1.北京工业大学传热强化与过程节能教育部重点实验室，北京100124 2.北京工业大学传热与能源利用北京市重点实验室，北京100124 3.胜利油田胜利动力机械集团有限公司，山东东营257032
影响，分析了涂层厚度对碳钢基材导热性能的影响.结果表明，环氧有机硅树脂涂层的导热系数约为0.19W/(m-K)，其耐温能力在200℃以上，可保证涂层在中低温烟气余热回收换热器表层长期工作而不发生任何热反应：添加锌粉可改善环氧改性有机硅涂层的导热性能，涂层干膜锌粉25wt%时，涂层材料导热系数达0.35W/(m-K)，较末添加锌粉时增大了84%.复合材料的导热系数随涂层厚度增加面下降，无涂层的碳钢导热系数为47.59W/(mK)，涂层厚度为200μm时，导热系数降至34.33W/(m·K) 关键调：有机硅树脂：热传导：复合材料；涂层厚度
文章编号：1009-606X(2018)04-0785-07
中图分类号：TK224.9*3
文献标识码：A
9(000）（6)(1009001）图
作者篇介：王赶强(1991-)，男，河北省任丘市人，硕士研究生，动力工程及工程热物理专业，Tel:18811016732,E-mail:18232592356@163.com；王景市，
通i讯联系人，Tel: 13521900056,E-mail: jfwang@bjut.edu.cn
：王赶强，王景南，张新欣，等，金属基有机硅树脂涂层复合材料的导热性能.过程工程学报，2018,18(4):785-791.
引用格式：
Wung G Q, Wang,Zhang XX, t al. Thmalconductivity ofmetal based silicone resin coting composite (in Chinese),. Chin.J.Process E 2018, 18(4): 785791, DOI: 10.12034/j-issn.1009-606X.217341
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