CN111041845A - 一种有机硅导热绝缘片及其制备方法 - Google Patents

一种有机硅导热绝缘片及其制备方法 Download PDF

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CN111041845A
CN111041845A CN201911364760.XA CN201911364760A CN111041845A CN 111041845 A CN111041845 A CN 111041845A CN 201911364760 A CN201911364760 A CN 201911364760A CN 111041845 A CN111041845 A CN 111041845A
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卜斌
万炜涛
陈田安
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Shenzhen Darbond Interface Materials Co ltd
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Abstract

本发明公开了一种有机硅导热绝缘片，包括基材和涂覆在基材上的混合物料，混合物料由以下重量份的组分组成：基础树脂8‑10份、稀释剂10‑15份、交联剂0.1‑1.0份、补强剂0‑5份、阻燃剂5‑10份、催化剂0.1‑0.5份和抑制剂0.01‑0.1份。本发明的有益效果是：本发明的有机硅导热绝缘片材料是一种高导热，高抗穿刺、高撕裂强度的材料；具有优异的耐高低温性能、出色的电气绝缘性能，使得有机硅导热绝缘片材料可以在‑40～200℃的温度下连续工作，广泛应用于电源、新能源汽车电池包、电池组、路由器、通讯机柜、电焊机等常用家电，还可以应用于航空航天领域、智能传感器领域和工业电子领域等。

Description

一种有机硅导热绝缘片及其制备方法
技术领域
本发明涉及导热材料技术领域，尤其涉及一种有机硅导热绝缘片及其制备方法。
背景技术
有机硅导热绝缘片材料是一种高导热，高抗穿刺、高撕裂强度的材料，具有优异的耐高低温性能、出色的电气绝缘性能，有机硅导热绝缘片材料可以在-40～200℃的温度下连续工作，优良的电气绝缘性能保证原器件的安全使用材料，由于有机硅结构的特殊性，使之具有许多其他材料所不能同时具备的优异性能，与其他高分子材料相比，其具有卓越的耐高低温性、优良的电绝缘性和化学稳定性、良好的耐老化性、突出的憎水防潮性和生理惰性等。
发明内容
本发明提供一种有机硅导热绝缘片及其制备方法，具体技术方案如下：一种有机硅导热绝缘片，包括基材和涂覆在基材上的混合物料，所述混合物料由以下重量份的组分组成：基础树脂8-10份、稀释剂10-15份、交联剂0.1-1.0份、补强剂0-5份、阻燃剂5-10份、催化剂0.1-0.5份和抑制剂0.01-0.1份。
进一步，所述基材为经纬网玻璃纤维布，厚度为0.05mm，网眼为3*3mm。
更进一步，所述基础树脂为粘度150000-200000cps的乙烯基MQ树脂，MQ比值0.8；所述稀释剂为乙酸乙酯；所述交联剂为粘度200-2000cps的含氢硅油，氢含量为0.18％-1.6％；所述补强剂为气相白炭黑或沉淀白炭黑中的一种或两种；所述阻燃剂粒径为0.1-30μm，为三聚氰胺磷酸盐、聚多磷酸盐、三氧化二锑或氢氧化铝粉中的一种或多种的混合；所述催化剂为铂金含量为1000-10000ppm的铂金络合物；所述抑制剂为炔基环己醇。
本发明还涉及上述有机硅导热绝缘片的制备方法，步骤为：将基础树脂、稀释剂、交联剂、补强剂、阻燃剂、抑制剂、依次加入到高速搅拌釜中搅拌100-150min，转速为1500-2000rpm，加入催化剂，搅拌10-30min，转速为1000-1500rpm，将混合物料用震动过滤筛过滤，将物料灌入涂布机中，使用双线棒涂布工艺，将液体浆料涂覆在玻璃纤维布表面，135℃下固化30min，即得。
本发明的有益效果是：本发明的有机硅导热绝缘片材料是一种高导热，高抗穿刺、高撕裂强度的材料；具有优异的耐高低温性能、出色的电气绝缘性能，使得有机硅导热绝缘片材料可以在-40～200℃的温度下连续工作，优良的电气绝缘性能保证原器件的安全使用材料，由于有机硅结构的特殊性，使之具有许多其他材料所不能同时具备的优异性能，与其他高分子材料相比，其具有卓越的耐高低温性、优良的电绝缘性和化学稳定性、良好的耐老化性、突出的憎水防潮性和生理惰性等。该有机硅导热绝缘片材料，广泛应用于电源，新能源汽车电池包、电池组、路由器、通讯机柜、电焊机等常用家电，还可以应用于航空航天领域、智能传感器领域和工业电子领域等。
具体实施方式
以下结合实例对本发明进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
实施例1
一种有机硅导热绝缘片，包括基材和涂覆在基材上的混合物料，基材为经纬网玻璃纤维布，厚度为0.05mm，网眼为3*3mm，混合物料由以下重量份的组分组成：粘度150000cps、MQ比值为0.8的乙烯基MQ树脂10份，乙酸乙酯13份，粘度2000cps、氢含量为1.6％的含氢硅油0.1份，气相白炭黑5份，粒径为0.1μm的三聚氰胺磷酸盐5份，铂金含量为10000ppm的铂金络合物0.1份和炔基环己醇0.01份。
实施例2
一种有机硅导热绝缘片，包括基材和涂覆在基材上的混合物料，基材为经纬网玻璃纤维布，厚度为0.05mm，网眼为3*3mm，混合物料由以下重量份的组分组成：粘度170000cps、MQ比值为0.8的乙烯基MQ树脂9份，乙酸乙酯10份，粘度1000cps、氢含量为0.9％的含氢硅油0.6份，沉淀白炭黑3份，粒径为30μm的聚多磷酸盐8份，铂金含量为5000ppm的铂金络合物0.3份和炔基环己醇0.1份。
实施例3
一种有机硅导热绝缘片，包括基材和涂覆在基材上的混合物料，基材为经纬网玻璃纤维布，厚度为0.05mm，网眼为3*3mm，混合物料由以下重量份的组分组成：粘度200000cps、MQ比值为0.8的乙烯基MQ树脂8份，乙酸乙酯15份，粘度200cps、氢含量为0.18％的含氢硅油1.0份，粒径为30μm的三氧化二锑或氢氧化铝粉10份，铂金含量为1000ppm的铂金络合物0.5份和炔基环己醇0.05份。
实施例1-3有机硅导热绝缘片的制备方法为：将基础树脂、稀释剂、交联剂、补强剂、阻燃剂、抑制剂、依次加入到高速搅拌釜中搅拌100-150min，转速为1500-2000rpm，加入催化剂，搅拌10-30min，转速为1000-1500rpm，将混合物料用震动过滤筛过滤，将物料灌入涂布机中，使用双线棒涂布工艺，将液体浆料涂覆在玻璃纤维布表面，135℃下固化30min，即得。
将实施例1-3所得有机硅导热绝缘片进行相关指标检测，如表1所示。从表中数据可以看出，实施例1-3有机硅导热绝缘片具有较好的热稳定性和机械性能。
表1.实施例1-3有机硅导热绝缘片性能测试数据
Figure BDA0002338112660000041
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (4)

1.一种有机硅导热绝缘片，包括基材和涂覆在基材上的混合物料，其特征在于，所述混合物料由以下重量份的组分组成：基础树脂8-10份、稀释剂10-15份、交联剂0.1-1.0份、补强剂0-5份、阻燃剂5-10份、催化剂0.1-0.5份和抑制剂0.01-0.1份。
2.根据权利要求1所述的有机硅导热绝缘片，其特征在于，所述基材为经纬网玻璃纤维布，厚度为0.05mm，网眼为3*3mm。
3.根据权利要求1所述的有机硅导热绝缘片，其特征在于，所述基础树脂为粘度150000-200000cps的乙烯基MQ树脂，MQ比值0.8；所述稀释剂为乙酸乙酯；所述交联剂为粘度200-2000cps的含氢硅油，氢含量为0.18％-1.6％；所述补强剂为气相白炭黑或沉淀白炭黑中的一种或两种；所述阻燃剂粒径为0.1-30μm，为三聚氰胺磷酸盐、聚多磷酸盐、三氧化二锑或氢氧化铝粉中的一种或多种的混合；所述催化剂为铂金含量为1000-10000ppm的铂金络合物；所述抑制剂为炔基环己醇。
4.一种如权利要求1-3任一项所述的有机硅导热绝缘片的制备方法，其特征在于，步骤为：将基础树脂、稀释剂、交联剂、补强剂、阻燃剂、抑制剂、依次加入到高速搅拌釜中搅拌100-150min，转速为1500-2000rpm，加入催化剂，搅拌10-30min，转速为1000-1500rpm，将混合物料用震动过滤筛过滤，将物料灌入涂布机中，使用双线棒涂布工艺，将液体浆料涂覆在玻璃纤维布表面，135℃下固化30min，即得。
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