高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (11): 1924.

• 研究论文 • 上一篇    下一篇

新型复合环氧光学树脂的制备与性能研究

吕长利, 崔占臣, 赵冬雪, 杨柏   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:2000-11-08 出版日期:2001-11-24 发布日期:2001-11-24
  • 通讯作者: 杨柏(1962出生),男,教授,博士生导师,主要从事纳米微粒复合及聚合物光学材料研究.E-mail:yangbai@mai.ljlu.edu.cn E-mail:yangbai@mai.ljlu.edu.cn
  • 基金资助:

    国家自然科学杰出基金(批准号:29925412)资助

Preparation and Property Study of Novel Composite Epoxy-type Optical Resins

LV Chang-Li, CUI Zhan-Chen, ZHAO Dong-Xue, YANG Bai   

  1. Department of Chemistry, Jilin University, Changchun130023, China
  • Received:2000-11-08 Online:2001-11-24 Published:2001-11-24

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被引次数

48

摘要： 通过2,2-二巯基乙硫醚(MES)与环氧氯丙烷反应合成了2,2-二巯基二乙硫醚二缩水甘油醚型环氧树脂(DGEMES),通过FTIR和MS对其进行表征;用乙二胺作为固化剂,将DGEMES与双酚A型环氧树脂(DGEBA)复合固化,得到了新型高折射率和低色散的光学树脂.DGEMES是一种较好的共聚单体,可以同时提高共聚树脂的折射率和阿贝数;DGEBA/DGEMES/乙二胺共固化树脂的nd=1.59～1.62,νd=35～39;当DGEMES的质量分数为40%时,固化树脂的折射率达到1.60以上,冲击强度22.5kJ/m2,且其它性能较均衡.此外,以甲基六氢苯酐(B-650)为固化剂,还合成了具有中等折射率的DGEBA/DGEMES/B-650共固化树脂(nd=1.54～1.56,νd=38～40),并对其光学和机械性能进行了研究.

关键词: 环氧树脂, 固化剂, 光学树脂, 折射率

Abstract: Bis( β-epoxypropylthioethyl) sulfide(DGEMES) was synthesized from 2,2'-dimercaptoethyl sulfide(MES) and epichlorohydrin and it's structure was characterized by FTIRand MS. Ethylenediamine was used to cure the mixture of DGEMESand DGEBA, a novel optical resins with a high refractive index and low dispersion were obtained. The studies indicated that DGEMESis a good monomer for copolymerization. With increasing it's content, the refractive index and Abbe number of the copolymer can be increased at the same time. The cured resins of DGEMES/DGEBA/ethylenediamine have a higher refractive index 1.59-1.62 and a large Abbe's number 35-39; especially, when the content of DGEMESis 40% in weight, the cured copolymer has a high refractive index(nd>1.60) and a higher impact strength(22.5 kJ/m2), and other well balanced properties, which is also important for optical materials. In addition, B-650 was used as a curing agent, the cured resins of DGEMES/DGEBA/B-650 were prepared, which possess middle degree of refractive index. The nd and νd values of the resins, ranging between 154-156 and 38-40, were measured by refractometer, the optical and mechanical properties of them were discussed in this paper.

Key words: Epoxy resins, Curing agent, Optical resins, Refractive index

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