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    • 4. 发明授权
    • Polymer-ceramic composites with excellent TCC
    • 聚合物陶瓷复合材料具有优良的TCC
    • US07672113B2
    • 2010-03-02
    • US11855428
    • 2007-09-14
    • Pranabes K. PramanikJaclyn RadewitzKazuhiro Yamazaki
    • Pranabes K. PramanikJaclyn RadewitzKazuhiro Yamazaki
    • H01G4/06
    • H01L21/31691H01G4/206H01L28/55H05K1/162H05K2201/0209H05K2201/068
    • Polymer-ceramic composite materials for use in the formation of capacitors, which materials exhibit very low changes in temperature coefficient of capacitance (TCC) in response to changes in temperature within the range of from about −55° C. to about 125° C. Specifically, these capacitor materials have a change in TCC ranging from about −5% to about +5%, in response to changes in temperature within the desired temperature range. The inventive composite materials comprise a blend of a polymer component and ferroelectric ceramic particles, wherein the polymer component includes at least one epoxy-containing polymer, and at least one polymer having epoxy-reactive groups. The inventive polymer-ceramic composite materials have excellent mechanical properties such as improved peel strength and lack of brittleness, electrical properties such as high dielectric constant, and improved processing characteristics.
    • 用于形成电容器的聚合物 - 陶瓷复合材料,该材料响应于约-55℃至约125℃范围内的温度变化,显示出电容温度系数(TCC)的非常低的变化。 具体地,这些电容器材料响应于期望温度范围内的温度变化,具有约-5%至约+ 5%的TCC变化。 本发明的复合材料包括聚合物组分和铁电陶瓷颗粒的共混物,其中聚合物组分包括至少一种含环氧基的聚合物和至少一种具有环氧基反应性基团的聚合物。 本发明的聚合物 - 陶瓷复合材料具有优异的机械性能,例如改善的剥离强度和缺乏脆性,电性能如高介电常数和改进的加工特性。