提高轮胎废弃物/氧化天然混合物的机械和抗菌性能,使用改性氧化-
Napasorn Kingkohyao1, Tanit Boonsiri2, Jobish Johns3
1Sustainable Polymer & Innovative Composite Materials Research Group, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.
Polymers
|January 11, 2025
概括
改性氧化- (ZnO-SiO2) 增强了轮胎废弃物 (TW) 和环氧化天然 (ENR) 混合物,提高了机械强度,并提供了持久的抗菌活性. 在 10 phr 达到最佳性能,平衡增强和防止填料聚合.
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
- 纳米技术 纳米技术
背景情况:
- 轮胎废弃物 (TW) 是一个重大的环境挑战.
- 环氧化天然 (ENR) 为材料开发提供了独特的特性.
- 开发用于复合材料的功能填充剂对于先进的应用至关重要.
研究的目的:
- 在TW/ENR混合物中研究改性氧化- (ZnO-SiO2) 的协同效应.
- 评估ZnO-SiO2对交叉连接,机械增强和抗菌活性的影响.
- 为了确定ZnO-SiO2的最佳度,以提高复合材料的性能.
主要方法:
- 将修改后的 ZnO-SiO2 加入到 TW/ENR 混合物中.
- 使用风湿学 (扭矩和治愈率) 分析交叉连接动态.
- 机械性质的评估 (拉力强度,扬模量,应变诱导结晶).
- 通过细菌减少试验和热老化来评估抗菌活性和耐久性.
主要成果:
- ZnO-SiO2显著提高了交叉链密度和加速治愈率.
- 在10phr ZnO-SiO2下观察到最佳性能,包括优越的拉伸性能和应变诱导的结晶.
- 取得了惊人的99.9%的细菌减少,归因于Zn2+离子释放和ROS生成.
- 过度的填充剂度导致聚合,对性能产生负面影响.
结论:
- ZnO-SiO2充当双重功能填充剂,优化TW/ENR混合物的交叉连接和机械性能.
- 复合材料具有持久的抗菌效率,适合长期应用.
- 控制填充剂聚合是最大限度地利用这些复合材料中ZnO-SiO2的好处的关键.
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