OALib Journal期刊
ISSN: 2333-9721
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新型纳米铜/石蜡/膨胀石墨温敏复合材料的制备及性能
Keywords: 复合材料,纳米铜/石蜡/膨胀石墨,热性能,高能球磨
Abstract:
?采用高能球磨法制备纳米铜/石蜡/膨胀石墨温敏复合材料,用扫描电镜(sem)、高分辨透射电镜(tem)对复合材料的微观形貌进行了表征,并测试了复合材料的膨胀性、温敏性和稳定性。结果表明,石蜡对铜粒的包覆效果良好,球磨98h的复合颗粒近似球形,粒径约为100nm。纳米铜/石蜡复合颗粒嵌入膨胀石墨的网络孔隙中。膨胀石墨使复合材料的膨胀性降低,改善其温敏性能,并使复合材料在高于相变温度下保持较高的稳定性。
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