Pressure-sensitive adhesives (PSAs), which achieve instantaneous adhesion with the application of light pressure, are used in a large range of commodity applications. In this work, PSAs enriched with cellulose nanocrystals (CNCs) and stabilized with a reactive surfactant (Hitenol AR-1025, AR) were synthesized via in situ emulsion polymerization. Incorporation of CNCs into AR-stabilized PSAs lead to improvements of peel strength, shear strength, and loop tack with significant increases observed at a CNC concentration of 0.75 parts per hundred monomer (phm). A comparative investigation of PSAs stabilized with reactive (AR) and non-reactive (sodium dodecyl sulfate) surfactant revealed that the enhanced performance can be attributed to the synergistic combination of CNCs and reactive surfactant, as only modest improvements can be attributed to surfactant type. In contrast to previous studies that report a trade-off in adhesive properties, we present a well-rounded PSA with exceptional peel strength, shear strength, and loop tack.

中文翻译：

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掺入纤维素纳米晶体和反应性表面活性剂以改善压敏粘合剂性能

压敏粘合剂 (PSA) 可通过施加轻微压力实现瞬时粘合，用于各种商品应用。在这项工作中，通过原位合成了富含纤维素纳米晶体 (CNC) 并用反应性表面活性剂 (Hitenol AR-1025, AR) 稳定的 PSA乳液聚合。将 CNC 加入 AR 稳定的 PSA 可提高剥离强度、剪切强度和环粘性，在 CNC 浓度为 0.75 份/百单体 (phm) 时观察到显着增加。对用反应性 (AR) 和非反应性 (十二烷基硫酸钠) 表面活性剂稳定的 PSA 进行的比较研究表明，增强的性能可归因于 CNCs 和反应性表面活性剂的协同组合，因为只有适度的改进可归因于表面活性剂类型。与之前报告粘合剂性能权衡的研究相比，我们提出了一种全面的 PSA，具有出色的剥离强度、剪切强度和环粘性。