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首页> 外文期刊>Journal of industrial and engineering chemistry >Effect of the n-butyl acrylate/2-ethylhexyl acrylate weight ratio on the performances of waterborne core-shell PSAs
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Effect of the n-butyl acrylate/2-ethylhexyl acrylate weight ratio on the performances of waterborne core-shell PSAs

机译：丙烯酸正丁酯/ 2-乙基己基丙烯酸酯重量比对水性核心壳PSA性能的影响

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摘要

A series of core-shell pressure-sensitive adhesives (PSAs) containing a poly(n-butyl-co-2-ethylhexyl acrylate) shell copolymer were synthesized via a multi-step emulsion process. The weight ratio of n-butyl acrylate (BA) to 2-ethylhexyl acrylate (2-EHA) was manipulated to vary the PSA properties. Measuring performance parameters of the resulting PSAs showed that increasing the relative amount of BA led to a decrease in the tack strength but an increase in the peel strength. In addition, the resistance of the PSAs to heat and humidity increased with increasing BA concentration. This result was correlated with the rheological and thermal properties of the PSA polymer. Finally, the dispersion stability levels of the PSAs were investigated by taking dynamic light scattering (DLS) measurements and applying the Turbiscan technique. Increasing the BA concentration in the PSA was found to lead to the formation of smaller particles and to faster fusion of the dispersed particles. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：通过多步乳液法合成含有聚（正丁基-CO-2-乙基己基丙烯酸酯）壳共聚物的一系列核 - 壳压敏粘合剂（PSA）。操纵丙烯酸正丁酯（Ba）至2-乙基己基丙烯酸酯（2-EHA）的重量比以改变PSA性质。测量所得PSA的性能参数显示，增加BA的相对量导致粘性强度的降低，但剥离强度的增加。另外，随着BA浓度的增加，PSA对热和湿度的电阻增加。该结果与PSA聚合物的流变和热性质相关。最后，通过采用动态光散射（DLS）测量并施加涡轮机技术来研究PSA的分散稳定性水平。发现PSA中的BA浓度增加，导致较小的颗粒形成并更快地融合分散的颗粒。 （c）2017年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

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