无溶剂法制备环氧玻纤布覆铜板的研究

发布时间：2018-03-18 12:14

  本文选题：无溶剂　切入点：环氧树脂　出处：《西安科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：传统环氧玻纤布半固化片主要是由环氧树脂、固化剂、促进剂、稀释剂、填料以及溶剂组成,制备是依靠加热过程中溶剂的挥发,这种制备方法不仅会污染环境,而且残留的溶剂会影响半固化片品质和覆铜板的性能。所以探索无溶剂FR-4环氧半固化片的制备技术是覆铜板行业目前最重要的任务和难点。本课题主要是以环氧树脂和酚醛环氧树脂为主体树脂,将双氰胺作为固化剂,加入不同含量的固化促进剂2-乙基-4-甲基咪唑(2E4MZ)和取代脲促进剂(UR300),采用无溶剂的方法,制备环氧玻纤布覆铜板。通过对不同方案不同固化促进剂所制备胶液的凝胶化时间(GT)、红外光谱(FT-IR)、差示扫描量热法(DSC)、以及热重分析(TGA)等测试,确定了无溶剂法制备环氧玻纤布半固化片的浸胶工艺和半固化工艺,实验得出无溶剂法制备半固化片的浸胶工艺为在双辊筒压延机上,辊筒温度为90℃的条件下进行浸胶;半固化工艺为130℃×15min。并将所得的半固化片制备成覆铜板,其制备工艺为130℃×15min+180℃×60min。将无溶剂法制备的覆铜板与传统方法进行对比可以得出,无溶剂法制备覆铜板的耐浸焊性、剥离强度、介电常数以及击穿电压均高于传统溶剂法制备的覆铜板,采用无溶剂法制备的环氧玻纤布半固化片具有较高的分解温度(310℃)和玻璃化转变温度(176℃),优良的耐热性能,同时得出该方法制备的覆铜板耐浸焊性为128s,介电常数为5.19,剥离强度为1.4N/mm,击穿电压能达到48kV/mm,各项性能均优于传统的溶剂法制备的覆铜板。
[Abstract]:The traditional epoxy glass fiber cloth is mainly composed of epoxy resin, curing agent, accelerator, diluent, filler and solvent. The preparation depends on the volatilization of the solvent in the heating process. This preparation method not only pollutes the environment, And the residual solvent will affect the quality of the semi-cured sheet and the properties of copper clad laminate. Therefore, it is the most important task and difficult point to explore the preparation technology of solvent-free FR-4 epoxy semi-solidified sheet. Resin and phenolic epoxy resin as main resin, Using dicyandiamide as curing agent, the curing accelerator 2-ethyl-4-methylimidazolium (2E4MZ) and the substituted urea accelerator (UR300) were added, and the solvent free method was used. Epoxy glass fiber cloth copper clad sheet was prepared. The gelation time of gelling liquid prepared by different curing accelerators was measured by GTU, FTIR, DSCG, TGA and so on, and TGA, TGA, TGA, TGA, TG, TGA, TGA, TGA, TGA, TGA, TGA, TGA, TGA, TGA, TGA, TGA, TGA, TGA etc. The soaking process and the semi-curing process of preparing epoxy glass fabric semi-solidified pieces by solvent-free method were determined. The results show that the solvent-free preparation process of semi-cured sheets is that the soaking process is carried out on the double-roller calender and the roller temperature is 90 鈩，

本文编号：1629527