• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Miscibility and Pressure-Sensitive Adhesive Performances of Acrylic Copolymer and Hydrogenated Rosin Systems
【24h】

Miscibility and Pressure-Sensitive Adhesive Performances of Acrylic Copolymer and Hydrogenated Rosin Systems

机译：丙烯酸共聚物和氢化松香体系的互溶性和压敏胶粘剂性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Relationship between the miscibility of pressure-sensitive adhesives (PSAs) acrylic copolymer/hydrogenated rosin systems and their performance (180deg peel strength,probe tack,and holding power),which was measured over a wide range of time and temperature,were investigated.The miscible range of the blend system tended to become smaller as the molecular weight of the tackifier increased.In the case of miscible blend systems,the viscoelastic properties (such as the storage modulus and the loss modulus)shifted toward higher temperature or toward lower frequency and ,at the same time,the pressure-sensitive adhesive performance shifted toward the lower rate side as the T_g of the blend increased.In the case of acrylic copolymer/hydrogenated rosin acid systems,a somewhat unusual trend was observed in the relationship among the phase diagram,T_g,and the pressure-sensitive adhesive performance.T_g of the blend was higher than that expected from T_gs of the pure components.This trend can be due to the presence of free carboxyl group in the tackifier resin.However,the phase diagram depended on the molec-ular weight of the tackifier.The pressure-sensitive adhesive performance depended on the viscoelastic properties of the bulk phase.A few systems where a single T_g could be measured,despite the fact that two phases observed microscopically,were found.The curve of the probe tack of this system shifted toward a lower rate side as the T_g increases.However,both the curve of the peel strength and the holding power of such system did not shift along the rate axis.
机译：研究了在广泛的时间和温度范围内测量的压敏胶粘剂（PSA）丙烯酸共聚物/氢化松香体系的相容性与它们的性能（180度剥离强度，探针粘性和保持力）之间的关系。随着增粘剂分子量的增加，共混体系的可混溶范围趋于变小。对于可混溶的共混体系，粘弹性（例如储能模量和损耗模量）向较高温度或向较低频率移动。同时，随着共混物T_g的增加，压敏胶的性能朝着较低的速率侧移动。在丙烯酸共聚物/氢化松香酸体系的情况下，在相之间的关系中观察到一些不寻常的趋势。图，T_g和压敏胶粘剂性能。共混物的T_g高于纯组分的T_gs预期。该趋势可能是由于相图取决于增粘剂的分子量。压敏胶的性能取决于本体相的粘弹性。尽管发现在显微镜下观察到两个相，但可以测量T_g。随着T_g的增加，该系统的探针粘性曲线向较低的速率侧移动。但是，剥离强度和保持力的曲线这样的系统没有沿速率轴移动。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号