低热膨胀玻璃纤维布用中空纤维检测液的制备研究

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Research and preparation of hollow fiber detection liquid for low thermal expansion glass fabric

REN Qianmu* （Grace Fabric Technology Co.，Ltd.，Shanghai 201315）

Abstract：Inthisstudy，atesting methodforhollowfibers inglassfabricwasintroduced，andadetectionliquidfordentify inghollow fibersinlowthermalexpansionglassfabricwasdevelopedbyblendingbenzylbenzoateandsunfloweroil ina specific ratio.It was found that when the mass fraction of benzyl benzoate in the detection liquid reached 48% ，the refractive index ofthe liquid matched thatof thelowthermal expansionglassUndertheseconditions，thedetection performance for hollw fiberswasoptimal.Thepreparedliquddemonstratedalow melting point，awideapplicable temperaturerange，low viscosity，andlow surface tension.Furthermore，it exhibited excellentstability，safety，and cost-effctiveness.

Keywords：lowthermal expansionglassfiber;holow fiberdetection; refractiveindex;benzylbenzoate;sunfloweroil

1引言

低热膨胀玻璃纤维布（Low-CTEGlassFabric，以下简称“LCTE玻璃纤维布”）作为印刷电路板（PCB）的核心增强材料，因其具有极低的热膨胀系数（CTE），能有效匹配半导体芯片的CTE，显著降低使用过程中的热应力，从而极大提升电子封装器件的可靠性和使用寿命，已成为高端通信设备、高性能计算、航空航天电子以及先进封装等领域的首选基材之一[1，2]

在LCTE玻璃纤维布的品质指标中，中空纤维是最受关注的项目之一。（剩余5907字）