Hydroxyl‐terminated polybutadiene based waterborne polyurethane acrylate emulsions: Synthesis, characterization, and damping property,Journal of Applied Polymer Science

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Hydroxyl‐terminated polybutadiene based waterborne polyurethane acrylate emulsions: Synthesis, characterization, and damping property
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-11-23 , DOI: 10.1002/app.50300
Songsong Li ₁ , Yunjiao Deng ₁ , Zhongyu Fu ₁ , Huixuan Zhang ₁ , Chao Zhou ₁ , Yuhang Jiao ₁

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A new kinds of waterborne polyurethane acrylate (WPUA) dispersions were synthesized based on isophorone diisocyanate (IPDI), hydroxyl‐terminated polybutadiene (HTPB), 1, 4‐butanediol (1, 4‐BDO), polytetramethylene ether glycol (PTMG), dimethylolpropionic acid (DMPA), 2‐ethylhexyl acrylate (EHA), and methyl methacrylate (MMA) as main raw materials. The influence of the HTPB content on the particle size, storage stability of the WPUA dispersions and the damping property of cured films were studied by using dynamic light scattering (DLS), dynamic mechanical analysis (DMA), respectively. It can be found the WPUA dispersions have a good stability and the damping temperature range of loss tangent (tan δ) >0.3 reaches a maximum (−26.6–79.14°C) when the content of HTPB is 20%. The HTPB based WPUA could be applied to damping material.

中文翻译：

端羟基聚丁二烯的水性聚氨酯丙烯酸酯乳液：合成，表征和阻尼性能

以异佛尔酮二异氰酸酯（IPDI），端羟基聚丁二烯（HTPB），1，4-丁二醇（1，4-BDO），聚四亚甲基醚二醇（PTMG），二羟甲基丙酸为基础合成了新型的水性聚氨酯丙烯酸酯（WPUA）分散体酸（DMPA），丙烯酸2-乙基己酯（EHA）和甲基丙烯酸甲酯（MMA）作为主要原料。分别通过动态光散射（DLS），动态力学分析（DMA）研究了HTPB含量对粒径，WPUA分散体的储存稳定性和固化膜阻尼性能的影响。可以发现，当HTPB含量为20％时，WPUA分散体具有良好的稳定性，损耗角正切（tanδ）> 0.3的阻尼温度范围达到最大值（-26.6–79.14°C）。基于HTPB的WPUA可以应用于阻尼材料。

更新日期：2021-02-01

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