不同固化剂对筘胶粘剂性能的影响
2018-06-28 10:14:26   来源:   评论:0 点击:

为了提高筘胶粘剂的性能和质量,通过调整固化剂中活泼氢和环氧树脂中环氧基的摩尔比,对比固化后胶粘剂的拉伸剪切强度、冲击强度、胶化时间和硬度,探讨固化剂结构和用量对筘胶粘剂性
李  冰,孙思薇
(陕西纺织器材研究所,陕西 咸阳  712000)
 
摘要:为了提高筘胶粘剂的性能和质量,通过调整固化剂中活泼氢和环氧树脂中环氧基的摩尔比,对比固化后胶粘剂的拉伸剪切强度、冲击强度、胶化时间和硬度,探讨固化剂结构和用量对筘胶粘剂性能的影响。结果表明:随着固化剂中活泼氢与环氧树脂中环氧基摩尔比增大,胶粘剂拉伸剪切强度和冲击强度先增长后降低,胶化时间逐步缩短;使用固化剂T-31的胶粘剂粘接强度最高,使用固化剂D-400和1618的胶粘剂韧性及粘接强度较好,使用固化剂5773的胶粘剂固化反应速度快、韧性较差,而使用固化剂651的胶粘剂韧性适中,拉伸剪切强度较低,固化反应时间较长;固化剂含量和结构对固化环氧树脂体系的硬度影响不大,邵尔D硬度均约为80度。
关键词:筘;胶粘剂;固化剂;拉伸剪切强度;冲击强度;胶化时间;硬度
中图分类号:TS103.84      文献标志码:A      文章编号:1001-9634(2018)03-0004-04
 
收稿日期:2018-01-15
基金项目:陕西省重点研发计划(2017ZDXM-GY-074);咸阳市重大科技专项计划(2017k01-07);咸阳市重大科技专项计划(2016K01-20)
作者简介:李  冰(1983—),女,甘肃天水人,高级工程师,主要从事高分子材料、胶粘剂等方面的研究工作。
 
Effect of Different Curing Agents on the Performance of the Reed Adhesive
LI Bing,SUN Siwei
(Shaanxi Research Institute of Textile Accessories,Xianyang 712000,China)
 
Abstract:To improve the performance and quality of reed adhesive,through adjustment of the molar ratio of active hydrogen in the curing agent and epoxy group in epoxy resin,and analysis of the tensile shear strength,impact strength,gelling time and hardness of the cured adhesive,probing is done into the effect of the structure and dosage of the curing agent on the performance of the reed adhesive.The results show that with the increase of the ratio of active hydrogen in the curing agent and epoxy group in epoxy resin,the tensile shear strength and the impact strength of the adhesive decreases before increases,and more,gelling are increased first and the gelling time shortens gradually,and the adhesive strength of the adhesive with the curing agent T-31 is the highest,the adhesive strength and bonding strength of the adhesive with the curing agent D-400 and 1618 are preferably accepted.The curing agent 5773 has fast curing rate but poor toughness, while the toughness of the adhesive with the curing agent 651 is moderate,lower in the tensile shear strength and longer in the curing time.The content and structure of curing agent have little effect on the hardness of cured epoxy resin system,and the hardness of Shore D is about 80 degrees.
Key Words:reed;adhesive;curing agent;tensile shear strength;impact strength;geling time; hardness
 
参考文献:
[1] 周长春.铝筘梁钢筘注胶装配工艺探讨[J].纺织器材,2001,28(1):42-44.
[2] 岳丹,贾鲲鹏,文茂,等.端羧基丁腈橡胶改性环氧树脂的结构与性能[J].中国胶粘剂,2014(12):9-12.
[3] 冯伟.低成本常温固化、高温使用环氧树脂胶粘剂的研制[J].应用化工,2010,39(4):616-617.
[4] 成煦,程文,王海波,等.聚醚与环氧树脂相容性对韧性影响及机理研究[J].功能材料,2017,48(1):1177-1182.
[5] GB/T 7124—2008,胶粘剂  拉伸剪切强度的测定(刚性材料对刚性材料)[S].
[6] GB/T 2567—2008,树脂浇铸体性能试验方法[S].
[7] GB/T 2411—2008,塑料和硬橡胶  使用硬度计测定压痕硬度(邵氏硬度)[S].
 
 

相关热词搜索:固化剂 胶粘剂 性能

上一篇:基于FLUENT的三维多层喷气织机引纬系统设计
下一篇:特种纤维气流成网机尘笼结构优化设计分析

分享到: 收藏
评论排行