余小斌, 孟江燕, 顾国环. LED灯灌封用无色透明环氧胶的研究[J]. 南昌航空大学学报(自然科学版), 2018, 32(3): 57-62. DOI: 10.3969/j.issn.1001-4926.2018.03.009
引用本文: 余小斌, 孟江燕, 顾国环. LED灯灌封用无色透明环氧胶的研究[J]. 南昌航空大学学报(自然科学版), 2018, 32(3): 57-62. DOI: 10.3969/j.issn.1001-4926.2018.03.009
YU Xiao-bin, MENG Jiang-yan, GU Guo-huan. Colorless and Transparent Epoxy Adhesive for LED Lights Embedding[J]. Journal of nanchang hangkong university(Natural science edition), 2018, 32(3): 57-62. DOI: 10.3969/j.issn.1001-4926.2018.03.009
Citation: YU Xiao-bin, MENG Jiang-yan, GU Guo-huan. Colorless and Transparent Epoxy Adhesive for LED Lights Embedding[J]. Journal of nanchang hangkong university(Natural science edition), 2018, 32(3): 57-62. DOI: 10.3969/j.issn.1001-4926.2018.03.009

LED灯灌封用无色透明环氧胶的研究

Colorless and Transparent Epoxy Adhesive for LED Lights Embedding

  • 摘要: 以无色透明双酚A环氧树脂为基体树脂,以甲基六氢苯二甲酸酐和甲基四氢苯二甲酸酐为固化剂,通过调整固化剂和环氧树脂的比例制备了8组环氧胶,并采用135℃/1 h+150℃/4 h的固化工艺对其进行固化,对所得试样的吸水率、弯曲强度和模量、透光率和玻璃化转变温度进行测试表征,通过对比分析得到该固化体系性能较佳的配比。研究结果证实:环氧树脂体系随着固化剂用量的增多,黏度随之降低;当m(MeHHPA):m(EP)=1:1时,黏度为570 mPa·s,硬度为25.50 HBa,弯曲强度为93.3 MPa,弯曲模量为2.4 GPa,吸水率为0.20%,透光率86.68%,其综合性能均优于市场产品。

     

    Abstract: The colorless andtransparent bisphenol A epoxy resin was used as matrix resin, methyl hexahydrophthalic anhydride and methyl tetrahydrophthalic anhydride were used as curing agents. 8 component epoxy adhesives were prepared by adjusting the ratio of curing agent and epoxy resin. Using 135℃/1 h +150℃/4 h of curing on the curing process, the water absorption, bending strength and modulus, light transmittance and glass transition temperature of the cured product were investigated. Through comparative analysis, a better performance ratio of the curing system was obtained. The results showed that the viscosity of the epoxy resin system decreased with the increase in the amount of curing agent, when m(MeHHPA):m(EP)=1:1, the viscosity was 570 mPa·s, and the hardness was 25.50 HBa, the bending strength was 93.3 MPa, the flexural modulus was 2.4 GPa, the water absorption was 0.20%, and the light transmittance was 86.68%. Its overall performance is better than that of the market products.

     

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