二碳酸结构对其的塑化能力的影响
Irina N Vikhareva1, Polina Kruchinina1, Dragan Manojlović2,3
1Nanotechnology REC, South Ural State University, Lenin Prospect 76, 454080 Chelyabinsk, Russia.
Polymers
|December 17, 2024
概括
来自二碳酸的新型增塑剂为聚乙烯 (PVC) 提供了比DEHP更安全的替代品. 双乙烯酸盐 (DBES) 显示出优异的性能,增强了PVC塑料的灵活性并减少了迁移.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
背景情况:
- 聚乙烯 (PVC) 是一种广泛使用的热塑性塑料,可塑化成分主导市场.
- 与传统塑化剂,如二二乙基甲酸盐 (DEHP) 相关的毒性和环境问题,需要开发更安全的替代品.
- 双碳酸的被探索为潜在的替代品,因为它们的毒性降低和传递抗能力的能力.
研究的目的:
- 合成和研究基于二碳酸和乙氧化醇的新型塑化剂,用于PVC.
- 评估PVC组合中的这些新的兼容性,塑化效率和热力学性能.
- 为了比较开发的增塑剂的性能与行业标准,如DEHP和二乙基酸盐 (DOA).
主要方法:
- 用乙氧化酒精合成二碳酸乙的合成.
- 研究合成和PVC之间的兼容性.
- 评估PVC组合物的塑化效应和热力学特性 (例如,玻璃过渡温度).
- 确定关键溶液温度,以评估塑化剂的迁移.
主要成果:
- 二碳酸盐的化学结构显著影响PVC塑料的技术和操作特性.
- 双乙烯酸盐 (DBES) 在合成的基中表现出最有效的塑化性能.
- 与DEHP和DOA相比,用DBES塑化的PVC样本显示出高度弹性状态区域的扩张更大.
- 溶解指标的临界温度表明,PVC塑料中研究的的迁移率很低.
结论:
- 双碳酸和乙氧化醇的 Ester 是对PVC传统的甲酸可塑剂的可行的替代品.
- 双乙烯酸盐 (DBES) 为PVC提供了卓越的塑化效果和改进的性能特征.
- 开发的增塑剂具有较低的迁移潜力,有助于制造更安全,更耐用的PVC产品.
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