导热硅胶片与导热硅脂二者在应用上的区别?

2025-04-06 21:50:58
推荐回答(1个)
回答1:

楼主您好,GLPOLY导热材料您身边的热管理解决方案专家为您解答:

导热硅胶片与导热硅脂二者在应用上有以下区别:

1. 导热系数:导热硅胶片的导热系数高于导热硅脂,分别是1.0-7.9w/m.k和1.0-5.0w/m.k。
2. 形态:导热硅胶片为片材,导热硅脂为膏状。
3. 绝缘:导热硅胶片绝缘性能好,1mm厚度电气绝缘指数在4000伏以上。导热硅脂因添加了金属粉绝缘差。
4. 厚度:作为填充缝隙的导热材料,导热硅脂受限制, 而导热硅胶片厚度从0.5-13mm不等,应用范围较广。
5. 使用:导热硅胶片可任意裁切,撕去保护膜直接贴用,公差很小,干净;导热硅脂需用心涂抹均匀,易脏污周围器件及引起短路。
6.价格:导热硅胶片价格稍高,导热硅脂因涂抹厚度薄,所以成本较低。

7.施工:导热硅胶片自带弱粘性,给安装过程中带来很大的方便性,不易脱落,便于流水线作业;导热硅脂不易涂抹均匀,易弄脏周围电子器件,施工麻烦。

8. 导热效果:导热硅胶片因柔软富有弹性,能大大增加发热体与散热片间的导热面积,加工工艺精细复杂,该产品稳定性能强;导热硅脂易挥发,通常一至二年就会固化为粉状,失去导热效果。希望能帮到您,谢谢!

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