化学改性发泡剂对泡沫铝材料性能的影响

doi:10.12068/j.issn.1005-3026.2018.05.011

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (5): 658-662.DOI: 10.12068/j.issn.1005-3026.2018.05.011

化学改性发泡剂对泡沫铝材料性能的影响

郭蕾，肖来荣，赵小军，宋宇峰

(中南大学材料科学与工程学院，湖南长沙410083)

收稿日期:2016-12-06 修回日期:2016-12-06 出版日期:2018-05-15 发布日期:2018-05-25
通讯作者: 郭蕾
作者简介:郭蕾(1991-)，女，山东淄博人，中南大学博士研究生；肖来荣(1968-)，男，湖南邵阳人，中南大学教授，博士生导师.
基金资助:
广东省科技重大专项(2012A090300008)；中南大学中央高校基本科研业务费专项资金资助项目(2014zzts174，2017zzts110)；中南大学“创新驱动”项目(51271203).

Effects of Chemical Modified Gas-Generating Agent on the Properties of Aluminum foam

GUO Lei， XIAO Lai-rong， ZHAO Xiao-jun， SONG Yu-feng

School of Materials Science and Engineering， Central South University， Changsha 410083， China.

Received:2016-12-06 Revised:2016-12-06 Online:2018-05-15 Published:2018-05-25
Contact: XIAO Lai-rong
About author:-
Supported by:
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摘要/Abstract

摘要： 采用熔体发泡法，利用化学镀镍改性的TiH₂作为发泡剂制备了泡沫铝，分析了改性TiH₂发泡剂的热分解行为，研究了改性TiH₂发泡剂加入量对泡沫铝材料孔隙率、压缩性能和阻尼性能的影响.结果表明，改性TiH₂发泡剂有效提高了释氢反应的开始温度，将释氢反应开始温度从480℃提升至550℃，并降低了释氢速率;随着改性发泡剂添加量的增加，泡沫铝的孔隙率增大，压缩强度变小，阻尼性能呈现先增大后减小的变化趋势;当加入质量分数1.5%的改性发泡剂时，泡沫铝的孔隙率达88%，孔洞分布及尺寸相对均匀，压缩强度、阻尼性能等综合性能良好.

关键词: 化学改性, 发泡剂, 泡沫铝, 压缩性能, 阻尼性能

Abstract: The aluminum foam was prepared by melt foaming method using chemical modified TiH₂ as gas-generating agent and the effect of the TiH₂ addition on the porosity， compressive and damping properties of aluminum foam was studied. The results show that using chemical modified TiH₂ as gas-generating agent can increase the starting temperature of releasing H₂ from 480℃ to 550℃ and decrease the rate of releasing H₂.With increasing the TiH₂ addition， the porosity of aluminum foam increases， the compressive stress decreases and the damping property firstly increases and then decreases. When the mass percentage of the TiH₂ addition is 1.5%， the porosity of aluminum foam is up to 88%， the size and distribution of pores are uniform， and the compressive and damping properties of the foam are well improved.

Key words: chemical modification, gas-generating agent, aluminum foam, compressive property, damping property

中图分类号:

TGl46.2

郭蕾，肖来荣，赵小军，宋宇峰. 化学改性发泡剂对泡沫铝材料性能的影响[J]. 东北大学学报:自然科学版, 2018, 39(5): 658-662.

GUO Lei， XIAO Lai-rong， ZHAO Xiao-jun， SONG Yu-feng. Effects of Chemical Modified Gas-Generating Agent on the Properties of Aluminum foam[J]. Journal of Northeastern University Natural Science, 2018, 39(5): 658-662.

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化学改性发泡剂对泡沫铝材料性能的影响

Effects of Chemical Modified Gas-Generating Agent on the Properties of Aluminum foam

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