不同层状玻璃板的环境键降解
Alaa El-Sisi1, Mohamed Elsawi Mahmoud2, Hesham El-Emam2
1Department of Civil Engineering, Southern Illinois University, Edwardsville, IL 62026, USA.
Polymers
|July 27, 2024
概括
加速湿度测试显示,乙烯-乙酸乙烯 (EVA) 保持了机械性能. 然而,离子体 (SG5000) 的结合强度在浸水后显著下降,影响了层状玻璃的耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 聚合物科学 聚合物科学
背景情况:
- 建筑材料需要长期的耐用性评估.
- 了解聚合物间层对气候变化的反应对于层状玻璃 (LG) 的性能至关重要.
- 聚合物中间层对LG窗户的结构完整性和寿命有重大影响.
研究的目的:
- 研究加速湿度对工业聚合物介层的机械性能的影响.
- 在模拟的气候条件下评估聚乙烯 (PVB),乙烯-乙酸乙烯 (EVA) 和离子体 (SG) 的性能.
- 为了确定湿度对LG段的粘合强度和机械完整性的影响.
主要方法:
- 将PVB,EVA和SG的单轴张力券和LG盘置于水浴中,以模拟湿度.
- 设计和制造一个专门的测试装置,用于潜水LG盘.
- 在老化和未老化样本上进行机械性能测试 (强度,应变,性,粘合强度).
主要成果:
- 乙烯-乙酸乙烯 (EVA) 在暴露于湿度后没有显著降解强度,最大应变或性.
- 离子体 (SG5000) 经过浸泡在水中后显示出结合强度显著下降.
- 聚乙烯 (PVB) 的特性没有在提供的摘要中详细说明,但它被纳入了研究中.
结论:
- 乙烯酸乙烯 (EVA) 是一个有希望的层间材料,用于需要抵抗潮湿环境的层状玻璃应用.
- 在湿度下SG5000的债券强度显著降低,需要进一步调查其在持久LG中的使用.
- 在LG中,用于聚合物中间层的材料选择对于确保长期性能和对环境退化的耐受性至关重要.
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