应用化学 ›› 2023, Vol. 40 ›› Issue (6): 871-878.DOI: 10.19894/j.issn.1000-0518.220413

• 研究论文 • 上一篇    下一篇

基于聚二氧化碳树脂压敏胶的流变及粘结性能

周嘉成1,2, 王冬冬1,2, 高云宝1, 金晶1(), 姜伟1,2()   

  1. 1.中国科学院长春应用化学研究所,高分子物理与化学国家重点实验室,长春 130022
    2.中国科学技术大学,合肥 230000
  • 收稿日期:2022-12-28 接受日期:2023-04-08 出版日期:2023-06-01 发布日期:2023-06-27
  • 通讯作者: 金晶,姜伟
  • 基金资助:
    吉林省科技发展计划项目(20200501005GX);长春市科技发展计划项目(21ZY07)

Rheological Properties and Bonding Properties of Modified Poly(Propylene Carbonate) Pressure-sensitive Adhesive

Jia-Cheng ZHOU1,2, Dong-Dong WANG1,2, Yun-Bao GAO1, Jing JIN1(), Wei JIANG1,2()   

  1. 1.State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    2.University of Science and Technology of China,Hefei 230000,China
  • Received:2022-12-28 Accepted:2023-04-08 Published:2023-06-01 Online:2023-06-27
  • Contact: Jing JIN,Wei JIANG
  • About author:wjiang@ciac.ac.cn
    jjin@ciac.ac.cn
  • Supported by:
    the Science and Technology Development Program of Jilin Province(20200501005GX);Changchun Science and Technology Development Program(21ZY07)

摘要:

基于绿色制造和节能环保的需求,目前国内外压敏胶的技术挑战在于无溶剂生物可降解压敏胶的研发,本文基于氯磺化改性聚二氧化碳树脂(MPPC),研究了其作为压敏胶的流变和粘结性能。结果表明,MPPC的粘结性能和剥离力数据与其数均相对分子质量有强烈的依赖关系。MPPC的数均相对分子质量越高,其拉伸剪切强度就越高; 当MPPC的数均相对分子质量在7600~17500的范围内时,随着其数均相对分子质量的提高,其拉伸剪切强度可以从(0.35±0.11) MPa提高到(3.78±0.33) MPa。同时,MPPC剥离力的数据也表现出相同的趋势,即MPPC的数均相对分子质量越高,其180(°)剥离强度越高,表明其可应用于高性能压敏胶材料。流变数据结果也进一步证明,MPPC的数均相对分子质量较高时,其储能模量(G')和损耗模量(G")相对较高,使得其性能相对于数均分子质量较低的MPPC更加优异。这为基于PPC制备可生物降解压敏胶材料提供了理论依据。

关键词: 聚二氧化碳树脂, 压敏胶, 粘结性能, 流变性能

Abstract:

Based on the demands for green manufacturing, energy conservation and environmental protection, the developing tendency of pressure-sensitive adhesive is focused on high performance, solvent-free, and biodegradability at home and abroad. The rheological and bonding properties of chlorosulfonation modified poly(propylene carbonate) (MPPC) are studied in this paper. The results show that the bonding properties and peeling strength of MPPC are strongly dependent on the number of average molecular mass. When the number average molecular mass of MPPC ranges from 7600 to 17500, the tensile lap-shear strength increases from (0.35±0.11) MPa to (3.78±0.33) MPa with the increase of the number average molecular mass of MPPC. The higher the number average molecular mass of MPPC, the higher the tensile lap-shear strength. At the same time, MPPC peel strength data also show the same trend, namely a high number of average molecular mass MPPC with high 180(°) peel strength, which can be applied to high-performance pressure-sensitive adhesive materials. The results of rheological data further prove that the energy storage modulus (G') and loss modulus (G") of a high number average molecular mass MPPC are higher than those of MPPC with a low number average molecular mass. This provides a theoretical basis for preparing biodegradable pressure-sensitive adhesives based on PPC.

Key words: Poly(propylene carbonate), Pressure-sensitive adhesive, Rheological properties, Bonding properties

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