Page 207 - 《精细化工》2023年第2期

第 2 期 丁李钰，等: 长烷基链对水性聚氨酯在非极性基材上附着力的影响 ·429·

2.7 WPU 乳液在 BOPP 膜上的 T-剥离强度分析 modified carbon black on the conductivity of waterborne polyurethane
coated films[J]. Fine Chemicals (精细化工), 2018, 35(6): 1049-1054.
图 7 为 WPU 乳液在 BOPP 薄膜上的 T-剥离强度。
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图 7 WPU 乳液在 BOPP 薄膜上的 T-剥离强度 Organic Coatings, 2016, 92: 85-94.
Fig. 7 T-Peel strength of WPU emulsions on BOPP film [8] ZHANG M, LIAN X, CUI J, et al. Synthesis of waterborne
polyurethane ink binder with high T-peel strength and its application
由图 7 所示，聚氨酯乳液在 BOPP 薄膜上的剥离 in biaxially oriented polypropylene film printing[J]. Journal of
Applied Polymer Science, 2021, 138(17): 50273.
强度随着 BY3026 添加量的增加先增大后趋于稳定。加
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入 BY3026 后的 WPU 乳液在 BOPP 薄膜上的剥离强度 Synthesis and characterization of PAE-based cationic waterborne
大幅度提高，其中 BWPU3 样品可达到 2.98 N/25 mm， polyurethane[J]. Chemical Industry and Engineering Progress (化工
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满足相关标准要求 [17] 。由于 BY3026 中具有非极性 [10] HAN X X (韩曦曦), TAO C (陶灿), HAN F L (韩飞龙), et al.
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China Leather (中国皮革), 2016, (6): 70-74.
液与 BOPP 薄膜的相容性，而随着 BY3026 含量的
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不断增加，长烷基侧链不断向表面迁移，当 BY3026 polyurethanes with natural dimer fatty acids based polyester polyol
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力逐渐趋于稳定。 polydimethylsiloxane and perfluorinated polyether in modified
与类似研究 [8,18-20] 对比，本实验制备的 WPU 乳液 waterborne polyurethane[J]. Polymer Bulletin, 2019, 76(11): 5517-
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在 BOPP 薄膜上的 T-剥离强度最高可达 2.98 N/25 mm，
[13] TAO C (陶灿), WANG J Y (王继印), HUANG Y P (黄毅萍). Effect
稳定在 2.5 N/25 mm 左右，在 BOPP 膜上具有优异 of side groups and ester groups contents of in polyester diols on
的附着力，有利于在水性油墨领域推广应用。 adhesive properties of waterborne polyurethane[J]. Adhesion (粘接),
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soft segments on properties of waterborne polyurethane[J]. Journal of
系列 WPU 乳液。测试结果表明，BY3026 中的长烷
Polymer Research, 2019, 26(6): 1-11.
基 链会在 成膜 过程中 向胶 膜表面 迁移 。随 着 [16] ZHANG R Z (张瑞珠), TIAN W J (田伟杰), WANG C Y (王重洋),
m(BY3026)∶m(PNA)从 0 增加到 3∶5，聚氨酯链上 et al. Strong hydrophobic anticorrosive surface properties of polyurethane
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的疏水性增加，WPU 乳液的平均粒径增大，胶膜的 Control (全面腐蚀控制), 2020, 34(2): 9-15.
吸水率降低，力学性能下降，提高了 WPU 与 BOPP [17] JIANG L, LIU Z, HU K, et al. Preparation and properties of
薄膜之间的附着力，当m(BY3026)∶m(PNA)=2∶5时， environment-friendly acrylic latex laminating adhesives applied in
plastic/plastic composite films[J]. Journal of Adhesion Science and
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N/25 mm，在水性油墨中具有潜在的应用价值。 [18] ZHANG M G (张明光), ZHANG M L (张明亮), LI X Y (李效玉),
et al. Effect of mass ratios of hydrophilic monomers on the properties
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