摘要
采用涤纶长丝为原料,以成型针织技术与有机材料浸渍法成功制备了具有高孔隙率(>80%)、开孔结构的泡沫铜。根据有机材料浸渍法的工艺特点讨论了金属浆料性能和烧结工艺的影响因素。同时分析检测了泡沫铜孔隙形貌和压缩性能,并对一次浸渍和二次浸渍两种工艺流程制备得到的泡沫铜结构性能进行了对比。结果表明:金属浆料的pH值对浆料的流变特性有很大的影响;通过二次浸渍工艺可以改变泡沫铜的微观组织结构,二次浸渍后泡沫铜材料孔隙率变化不大,这对改善材料的能量吸收性能具有重要意义。
The open-pore structure copper foam with high porosity （〉80%） was prepared successfully which based on PET by the method of forming-knitting technology and organic materials. The metal paste performance and influence factors of sinter process were discussed according to the technical characteristics of organic material dipping. In the meantime, the pore morphology and compressive properties of copper foam were analyzed to contrast processes of once impregnation and twice impregnation on preparations of copper foam structure performance. The results showed that： The pH value of metal paste had a large influence on rheological properties of slurry; The secondary in- filtration process could alter the microstructure of foamed copper and porosity had little change, which had great significance to improving the energy absorption capacity of the material.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2016年第8期80-83,共4页
Materials Reports
基金
陕西省自然科学基金面上项目(2015JM5210)
陕西省产业用纺织品协同创新中心科研资助项目(2015ZX-06)
陕西省教育厅重点实验室专项(15JS030)
中国纺织工业联合会指导项目(2014006)
陕西省重点学科专项(陕[2008]169)
关键词
涤纶长丝
成型针织
泡沫铜
烧结
浸渍
孔隙率
PET, forming-knitting, copper foam, sintering, infiltration, porosity
