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核桃壳粉液化产物大孔泡沫炭的制备研究 预览 被引量:1

The Preparation of Carbon Foam with Macropores Structure from the Phenolated Walnut Shell Powder
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摘要 以核桃壳粉为原料,通过液化、树脂化等工艺制备可发泡液化产物树脂,并借助发泡法制备大孔泡沫炭.分析了发泡条件对泡沫炭的微观结构、表观密度、机械强度的影响。结果表明:液化产物与甲醛作用可以制备具有发泡性能的树脂,该树脂可用于制备泡沫炭;借助表观密度、抗压强度及微观构造图片分析发现,制备大孔泡沫炭的较佳条件为:固化剂用量5%~6%,发泡剂用量2%~3%.表面活性剂用量8%;选取发泡剂用量2%、固化剂用量5%、表面活性剂用量8%的制备条件进行验证试验发现,所制的泡沫炭的表观密度为0.34g/cm3,抗压强度为6.7MPa,孔径为40~70μm,是一种泡孔均匀、开孔率较高的大孔泡沫炭材料。 Foamable phenol resin of liquefied products of walnut (Juglans regia) shell powder was prepared, and then macroporous carbon foam was obtained by foaming method. In this study, effect of foaming condition on the microstructure, bulk density and compressive strength of the carbon foam were mainly investigated. Results showed that the liquefied product resin had the foaming performance with formaldehyde and it could be used to pre- pare the carbon foam. The optimum conditions were obtained through image analysis of the bulk density, compressive strength and microstructure. The dosage of curing agent, foaming agent and surfactant were 5%-6%, 2%-3% and 8% respectively. The experiment was conducted which the dosage of curing agent, foaming agent and surfaetant were 5%, 2% and 8% respectively, and macropore carbon foam was obtained which it had high opening porosity, uniform pore distribution, bulk density of 0. 34 g/cm3, compressive strength of 6.7 MPa and average pore size of 40-70 μm.
作者 万永坤 刘守庆 赵建蓉 黄元波 郑志锋 李雪梅 Wan Yongkun1, Liu Shouqing1 , Zhao Jianrong1 , Huang Yuanbo2,3, Zheng Zhifeng2,3, Li Xuemei1,3 (1. College of Science, Southwest Forestry University, Kunming Yunnan 650224, China; 2. College of Materials Engineering, Southwest Forestry University, Kunming Yunnan 650224, China ; 3. Key Laboratory of Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education Southwest Forestry University, Kunming Yunnan 650224, China)
出处 《西南林业大学学报》 北大核心 2017年第3期192-198,共7页 Journal of Southwest Forestry College
基金 西南林业大学大学生科技创新项目(15104)资助 国家自然科学基金项目(31160147)资助 云南省应用基础研究重点项目(2014FA034)资助.
关键词 核桃壳 泡沫炭 液化 树脂化 发泡材料 walnut shell, carbon foam, liquefaction, resinification, foaming material
作者简介 万永坤(1993-),男,本科生。研究方向:生物质材料制备。Email:1579580752@qq.com 通信作者:李雪梅(1978-),女,博士生,讲师。研究方向:炭材料的制备及开发。Email:xmli2012@163.com。
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