交联性溶性树脂和自交联聚烯酸乳的合成
Min Li1, Yansen Wang2, Jun Ye2
1State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
Molecules (Basel, Switzerland)
|June 27, 2025
概括
这项研究开发了可交联性溶性树脂 (ASR) 用于自交联聚烯酸盐乳. 优化的ASR增强了水性油墨粘附和薄膜特性,提高了耐水性和抗拉强度.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
背景情况:
- 溶性树脂 (ASR) 是聚烯酸乳合成中的关键聚合物表面活性剂.
- 开发具有增强性能的自交联乳对于水性油墨应用至关重要.
研究的目的:
- 使用二乙烯胺 (DAAM) 设计和合成可交叉链接的ASR.
- 调查这些ASR对自我交叉连接的多烯酸盐乳性能的影响.
- 优化核心-外交联策略,以提高电影的性能.
主要方法:
- 乳液聚合制备与DAAM交叉链接的ASR.
- 在现场用ASR作为表面活性剂合成聚烯酸盐乳.
- 乳颗粒大小,稳定性 (ζ-潜力),薄膜特性 (Tg,拉伸强度,耐水性) 和交联度的表征.
主要成果:
- 聚烯酸乳呈现出核心外结构,随着DAAM含量的增加,粒子大小增加和分布缩小.
- 乳膜显示了玻璃过渡温度和拉伸强度的提高 (高达7.96 MPa).
- 双核心-外交叉连接是最有效的,但过度的外交叉连接阻碍了核心交叉连接;优化的DAAM含量改善了油墨对PE和BOPP的粘附性 (在BOPP上高达100%).
结论:
- 可交叉连接的ASR有效地产生具有可调节性质的自我交叉连接的多烯酸盐乳.
- 在ASR中的DAAM含量和交叉连接策略显著影响乳和薄膜特性.
- 基于ASR的优化乳为水性油墨提供了更好的耐水性,机械强度和粘附性.
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