Electromagnetic wave absorbing thermoconductive silicone gel molded sheet and method for producing the same
    1.
    发明授权

    公开(公告)号:US06284363B1

    公开(公告)日:2001-09-04

    申请号:US09267049

    申请日:1999-03-12

    IPC分类号: B32B516

    摘要: A silicone gel sheet is heat-molded from a silicone gel composition comprising metal oxide magnetic particles and a thermoconductive filler. The sheet has a high electromagnetic wave absorbing property at a frequency ranging from 500 to 800 MHz. The hardness of the composition after hardening treatment is set in the range of 10-95 when measured with an ASKER F-type hardness meter. The metal oxide magnetic particles used here can be either Mn—Zn ferrite or Ni—Zn ferrite whose average particle diameter is 1-50 &mgr;m. For the thermoconductive filler, a metal oxide, aluminum nitride, boron nitride, silicon nitride, or silicon carbide can be used. In the silicone gel molded sheet, an electroconductive mesh is embedded in one surface layer of the silicone gel layers while the other surface is provided with adhesiveness. As a result, an electromagnetic wave absorbing thermoconductive silicone gel molded sheet is provided at a low cost, and the sheet is superior both in electromagnetic wave absorbing property and thermoconductivity.

    摘要翻译: 硅胶凝胶片由包含金属氧化物磁性颗粒和导热填料的硅凝胶组合物热成型。 该片材在500至800MHz的频率范围内具有高电磁波吸收特性。 用ASKER F型硬度计测量时,硬化处理后的组合物的硬度设定在10-95的范围内。 这里使用的金属氧化物磁性粒子可以是平均粒径为1-50μm的Mn-Zn铁氧体或Ni-Zn铁氧体。 对于导热填料,可以使用金属氧化物,氮化铝,氮化硼,氮化硅或碳化硅。 在硅胶凝胶成型片中,在硅凝胶层的一个表面层中嵌入导电性网,而另一面具有粘接性。 结果,以低成本提供了电磁波吸收导热硅凝胶模制片,并且该片在电磁波吸收特性和导热性方面均优异。

    Method for producing an electromagnetic wave absorbing thermoconductive silicone gel molded sheet
    4.
    发明授权
    Method for producing an electromagnetic wave absorbing thermoconductive silicone gel molded sheet 有权
    电磁波吸收型导热硅凝胶成型片的制造方法

    公开(公告)号:US06521150B1

    公开(公告)日:2003-02-18

    申请号:US09616316

    申请日:2000-06-09

    IPC分类号: B29C4318

    摘要: A silicone gel sheet is heat-molded from a silicone gel composition comprising metal oxide magnetic particles and a thermoconductive filler. The sheet has a high electromagnetic wave absorbing property at a frequency ranging from 500 to 800 MHz. The hardness of the composition after hardening treatment is set in the range of 10-95 when measured with an ASKER F-type hardness meter. The metal oxide magnetic particles used here can be either Mn—Zn ferrite or Ni—Zn ferrite whose average particle diameter is 1-50 &mgr;m. For the thermoconductive filler, a metal oxide, aluminum nitride, boron nitride, silicon nitride, or silicon carbide can be used. In the silicone gel molded sheet, an electroconductive mesh is embedded in one surface layer of the silicone gel layers while the other surface is provided with adhesiveness. As a result, an electromagnetic wave absorbing thermoconductive silicone gel molded sheet is provided at a low cost, and the sheet is superior both in electromagnetic wave absorbing property and thermoconductivity.

    摘要翻译: 硅胶凝胶片由包含金属氧化物磁性颗粒和导热填料的硅凝胶组合物热成型。 该片材在500至800MHz的频率范围内具有高电磁波吸收特性。 用ASKER F型硬度计测量时,硬化处理后的组合物的硬度设定在10-95的范围内。 这里使用的金属氧化物磁性粒子可以是平均粒径为1-50μm的Mn-Zn铁氧体或Ni-Zn铁氧体。 对于导热填料,可以使用金属氧化物,氮化铝,氮化硼,氮化硅或碳化硅。 在硅胶凝胶成型片中,在硅凝胶层的一个表面层中嵌入导电性网,而另一面具有粘接性。 结果,以低成本提供了电磁波吸收导热硅凝胶模制片,并且该片在电磁波吸收特性和导热性方面均优异。