玻纤增强液晶高分子聚合物热力学特性研究  

Research on Thermodynamic Characteristics of Glass Fiber Reinforced Liquid Crystal Polymers

作　　者：王旭 WANG Xu(Guizhou Space Appliance Co.,Ltd.,Guiyang 550000,China)

机构地区：[1]贵州航天电器股份有限公司,贵州贵阳550000

出　　处：《新技术新工艺》2024年第12期7-10,共4页New Technology & New Process

摘　　要：液晶高分子聚合物(LCP)是一种在一定条件下呈现液晶态的聚合物,常用于电连接器底座,其热力学性能直接影响电信号传输的稳定性。以LCP为研究对象,对其玻璃化转变温度、不同玻纤方向热膨胀系数和导热系数展开研究。研究结果表明,玻纤增强LCP的玻璃化转变温度(Tg)值约为120℃。随着温度的升高,玻纤增强LCP的热膨胀系数先增大后减小,导热系数增大,其中热膨胀系数在不同玻纤方向的差异更为明显。通过对玻纤增强LCP热力学特性的研究,有助于掌握电连接器底座的可靠性,为电连接器底座的设计提供指导。The liquid crystal polymer(LCP)was a kind of polymer that exhibited a liquid crystal state under certain conditions.It was commonly used in the bases of electrical connectors,and its thermodynamic properties directly affected the stability of electrical signal transmission.Taking LCP as the research object,it was studied that the glass transition temperature,the coefficient of thermal expansion in different glass fiber directions and the heat conductivity coefficient.The research results showed that the glass transition temperature(Tg)value of glass fiber reinforced LCP was about 120℃.With the increase of temperature,the coefficient of thermal expansion of glass fiber reinforced LCP first increased and then decreased,and the heat conductivity coefficient increased,among of them,the difference in the coefficient of thermal expansion in different glass fiber directions was more obvious.Through the research on the thermodynamic characteristics of glass fiber reinforced LCP,it was helpful to master the reliability of the bases of electrical connectors and provide guidance for the design of the bases of electrical connectors.

关 键 词：液晶高分子聚合物 电连接器底座 玻璃化转变温度 热膨胀系数 导热系数 复合材料 

分 类 号：O631.3[理学—高分子化学]