含联苯结构环氧树脂/蒙脱土纳米复合材料的制备及其固化反应动力学

J4 ›› 2011, Vol. 49 ›› Issue (05): 939-943.

含联苯结构环氧树脂/蒙脱土纳米复合材料的制备及其固化反应动力学

崔继文^1,2, 王书红¹, 张瑞仁¹, 那辉^2, 孟令锴³

1. 佳木斯大学药学院, 黑龙江佳木斯 154000； 2. 吉林大学化学学院, 长春 130012；3. 牡丹江医学院药学系, 黑龙江牡丹江 153000

收稿日期:2010-12-30 出版日期:2011-09-26 发布日期:2011-09-27
通讯作者: 崔继文 E-mail:cjwhljjms@sina.com

Preparation and Curing Reaction Kinetics of Epoxy Resin Containing Biphenyl Structure/Montmorillonite Nanocomposites

CUI Jiwen^1,2, WANG Shuhong¹, ZHANG Ruiren¹, NA Hui², MENG Lingkai³

1. College of Pharmacy, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China;2. College of Chemistry, Jilin University, Changchun 130012, China;3. Department of Pharmacy, Mudanjiang Medical University, Mudanjiang 153000, Heilongjiang Province, China

Received:2010-12-30 Online:2011-09-26 Published:2011-09-27
Contact: CUI Jiwen E-mail:cjwhljjms@sina.com

摘要/Abstract

摘要：

采用含联苯结构环氧树脂3,3′,5,5′四甲基联苯二酚二缩水甘油醚 (TMBP)与层间距为2.33 nm的有机蒙脱土(OMMT)进行插层复合, 并选用芳香型固化剂4,4′二氨基二苯甲烷(DDM), 制备了TMBP/DDM/MMT纳米复合材料. 采用非等温差示扫描量热法（DSC）研究该体系的固化反应动力学, 求得其表观活化能Δ E=51.25 kJ/mol, 反应级数为0.88. 采用X射线衍射（XRD）研究蒙脱土的质量分数对其在环氧树脂中的插层及剥离行为的影响. 结果表明: 只有在蒙脱土的质量分数较低时才能得到剥离型纳米复合材料; 性能测试数据表明, 该复合材料具有较高的拉伸强度、弯曲模量、冲击强度和较高的玻璃化转变温度.

关键词: 有机蒙脱土(OMMT)； 4,4′二氨基二苯甲烷 (DDM)；含联苯结构环氧树脂 (TMBP)；固化反应动力学；纳米复合材料； X射线衍射

Abstract:

A new type of epoxy resin containing biphenyl structure/organomontmorillonite nanocomposites was reported, which was based on 3,3′,5,5′tetramethyldiphenoldiglycidyl ether and OMMT. The interlayer spacing of the OMMT, corresponding to the d(001) plane peak was 2.33 nm. The curing reaction kinetics of the TMBP/MMT system was studied by means of nonisothermal DSC. Based on the Kissinger method, the apparent activation energy (Δ E) was calculated to be 51.25 kJ/mol. The reaction order (n=0.88) was calculated according to Crane theory. The influences of the content of OMMT on the intercalation and exfoliation structures of TMBP/DDM/MMT composites were investigated by wide Xray diffraction (WXRD). The Xray patterns reveal that only at the lower content of OMMT, could the exfoliation nanocomposites be formed. The mechanical and thermal properties of the composites were measured. The results indicate that the composites have better mechanical properties and higher T_g than the pristine epoxy resin.

Key words: organomontmorillonite (OMMT), 4,4′diaminodiphenylmethane (DDM), epoxy resin containing biphenyl structure (TMBP), curing reaction kinetic, nanocomposite, X-ray diffraction

中图分类号:

O633.13

崔继文, 王书红, 张瑞仁, 那辉, 孟令锴. 含联苯结构环氧树脂/蒙脱土纳米复合材料的制备及其固化反应动力学[J]. J4, 2011, 49(05): 939-943.

CUI Ji-Wen, WANG Shu-Gong, ZHANG Rui-Ren, NA Hui, MENG Lian-Jie. Preparation and Curing Reaction Kinetics of Epoxy Resin Containing Biphenyl Structure/Montmorillonite Nanocomposites[J]. J4, 2011, 49(05): 939-943.