使用地面轮胎 (GTR) 作为碳酸的功能替代品的EPDM化合物的老化行为
Philippe Rotgänger1, Vanessa Spanheimer1, Danka Katrakova-Krüger1
1Materials Laboratory, Faculty of Computer Science and Engineering Science, TH Köln, 51643 Gummersbach, Germany.
Polymers
|February 13, 2026
概括
在EPDM弹性体中用地面轮胎 (GTR) 取代碳酸是可行的可持续性. 部分GTR替代提供了性能和环保之间的平衡,尽管大量减少机械性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续工程 可持续工程
背景情况:
- 虽然EPDM弹性体被广泛使用,但它们依赖于不可再生的填充物,如碳酸 (CaCO3).
- 地面轮胎 (GTR) 是一种可持续的替代填充剂,来自回收轮胎.
- 研究GTR作为EPDM中直接填充剂的替代品,需要了解其对材料性能和老化的影响.
研究的目的:
- 探索在EPDM弹性体配方中用磨砂轮胎代替碳酸的可行性.
- 分析GTR整合对交叉连接密度,机械性能和老化行为的影响.
- 在使用GTR作为填料时,确定可持续性和材料性能之间的最佳平衡.
主要方法:
- 基于EPDM的弹性体的配方,含有不同比例的碳酸和地面轮胎.
- 温度扫描应激放松 (TSSR) 分析,以评估GTR参与火山化和交叉连接密度.
- 机械测试和老化研究 (热氧化应力) 以评估材料性能和长期耐用性.
主要成果:
- 证实地面轮胎 (GTR) 参与了火山化过程.
- 最初的GTR添加降低了交叉链密度和机械性能,但加速了固化.
- 热氧化老化增加了交叉链密度,度,并在断裂时减少延长.
结论:
- 在EPDM弹性体中用地面轮胎部分替代碳酸是一种可行的可持续策略.
- 可持续性和性能之间的妥协可以通过部分GTR更换来实现.
- 高度的GTR显著降低了基于EPDM的材料的机械性能.
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