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碳纳米管改性的蜡基复合粘结剂(3)

时间:2013-10-29 10:11 文章来源:http://www.lunwenbuluo.com 作者:陈小华 点击次数:


  通过熔融混炼成功制备了碳纳米管改性的复合粘结剂.扫描电镜显微照片显示,功能化的碳纳米管在粘结剂基体中能均匀分散,而未经处理的碳纳米管则有较严重的团聚.实验结果表明,功能化碳纳米管的加入能有效提高粘结剂的结晶度,从而将提高生坯的强度和保形性.此外,碳纳米管的加入对复合粘结剂的粘度影响不大,这样就可以既满足保形性要求的同时又不影响喂料的流动性.碳纳米管与粘结剂之间以非共价键连接,这样就可以既使粘结剂脱除干净又保留碳纳米管和金属粉末.综上所述,这种新型碳纳米管改性复合粘结剂适用于金属粉末的注射成形.
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