制备方案 热固聚氨改性青的优化
Min Sun1, Shuo Jing1, Haibo Wu2
1School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, China.
Polymers
|May 27, 2023
概括
耐热聚氨 (PU) 青提供了更好的温度稳定性. 使用预制方法,以56.64%的PU和3.58%的固化剂 (CA) 达到最佳性能,提高了青混合物的性能.
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.
- 聚合物化学 聚合物化学
背景情况:
- 传统的改性青具有较差的温度稳定性,限制了其在苛刻应用中的性能.
- 聚氨 (PU) 被探索为一种修饰剂,以增强青的性能,特别是耐热性.
研究的目的:
- 开发一种耐热PU改性青,具有更好的温度稳定性和机械性能.
- 为了优化PU青混合物的制备技术,PU剂量和固化剂 (CA) 剂量.
主要方法:
- 评估不同的PU修饰器类型,以选择最佳的.
- 一个L9 (3^3) 直角实验的设计,以研究制备技术,PU剂量和CA剂量.
- 机械测试包括分裂拉伸强度,结解裂强度和拉伸强度比 (TSR).
主要成果:
- 聚乙烯的含量显著影响了聚乙烯青混合物的分裂抗拉强度.
- 使用预制方法制备的56.64%PU和3.58%CA观察到最佳性能.
- 用PU改性青和混合物表现出高强度,塑料变形能力,以及优异的低温和水稳定性.
结论:
- 热固性PU修改有效地提高了青的温度稳定性和机械性能.
- 优化的制备参数为生产高性能PU青提供了一种可行的方法.
- 修改后的青符合严格的标准,适用于苛刻的基础设施项目.
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