丙烯酸羟乙酯在丁苯橡胶中的反应性接枝：表征及其对白炭黑增强轮胎复合材料的影响,Journal of Applied Polymer Science

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丙烯酸羟乙酯在丁苯橡胶中的反应性接枝：表征及其对白炭黑增强轮胎复合材料的影响
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-02-28 , DOI: 10.1002/app.53798
Shengkai Li ₁ , Yudong Liu ₁ , Jing Hua ₁

Affiliation

采用熔融接枝法将丙烯酸羟乙酯(HEA)接枝到丁苯橡胶(SBR)大分子链上。接枝结构通过傅里叶变换红外光谱和核磁共振¹ H谱得到证实。此外，SBR- g- 已经研究了 HEA/二氧化硅复合材料通过 SBR/二氧化硅界面处的氢键相互作用改善填料分散。SBR 分子链和二氧化硅界面通过羟基改性 SBR/二氧化硅的偶联相互作用同时增强。不同 SBR/二氧化硅复合材料的低温断裂表面的扫描电子显微镜图像和橡胶化合物降低的 Payne 效应证实二氧化硅颗粒在整个 SBR 基体中均匀分散。动态曲线表明 SBR- g干湿牵引性能的最高功效-HEA/二氧化硅复合材料与未改性参考样品的比较。同时，该复合材料的制备不需要添加硅烷偶联剂来增加容量，不会有硅烷化反应产生的挥发性有机化合物。由于具有降低能量和提高燃油效率等良好性能，SBR- g -HEA 是用于生胎胎面的理想环保材料。

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Reactive grafting of hydroxyethyl acrylate in styrene butadiene rubber: Characterization and its effect on silica reinforced tire composites

Hydroxyethyl acrylate (HEA) was grafted onto styrene butadiene rubber (SBR) macromolecular chain by melt grafting method. Grafted structure was confirmed by Fourier transform infrared spectroscopy and ¹H spectra of nuclear magnetic resonance. In addition, the SBR-g-HEA/silica composites have been studied for their improved filler dispersion through hydrogen bonding interaction at the SBR/silica interface. SBR molecular chains and the silica interface was enhanced through coupling interaction at the hydroxyl modified SBR/silica, at the same time. scanning electron microscope image of the cryo fractured surface of different SBR/silica composites and reduced Payne effect of rubber compound confirmed the silica particles have an even dispersion throughout the SBR matrix. The dynamic curves indicated the highest efficacy for wet and dry traction performances of SBR-g-HEA/silica composites comparing to unmodified reference sample. Meanwhile, the preparation of the composite does not need to add silane coupling agent to increase the capacity, there will be no volatile organic compounds produced by silanization reaction. Owing to the good properties such reduced energy and increased fuel efficiency, the SBR-g-HEA is an ideal eco-friendly material for green tire tread.

更新日期：2023-02-28

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