在亚麻增强热塑性塑料中性处理的技术环境评估
Suhail Hyder Vattathurvalappil1,2, Mian Mobeen Shaukat3,4, Rajesh Theravalappil5
1Department of Aerospace Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
Polymers
|March 13, 2024
概括
这项研究探讨了在高密度聚乙烯复合材料中使用氧化 (NaOH) 处理的亚麻纤维. 虽然NaOH处理改善了机械性能,但它也增加了环境影响,强调了技术环境评估的必要性.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续工程 可持续工程
- 聚合物复合材料 聚合物复合材料
背景情况:
- 天然纤维增强塑料提供环境效益和可回收性.
- 化学处理可以增强这些复合材料的热力学性能.
- 评估处理方法的技术经济和环境影响对于工业扩展至关重要.
研究的目的:
- 研究氧化 (NaOH) 处理对用作高密度聚乙烯 (HDPE) 增强剂的亚麻纤维的影响.
- 评估用经过处理和未经处理的亚麻纤维增强的HDPE复合材料的机械和环境性能.
- 对天然纤维复合材料的化学处理进行技术环境分析.
主要方法:
- 高密度聚乙烯 (HDPE) 复合材料是使用NaOH处理和未处理的亚麻纤维制造的.
- 对两种复合材料类型的机械性能,特别是拉力强度进行了测量.
- 用NaOH处理的样本进行了生命周期评估 (LCA),以量化环境影响.
主要成果:
- 与未经处理的样本相比,用NaOH处理的亚麻纤维增强的复合材料在拉伸强度上显著增加了37%.
- 液体气体评价显示了NaOH处理样本的环境负担,包括全球变暖潜力为5.8公斤的CO2,陆地酸化潜力为0.0269公斤的SO2,人类致癌毒性为0.031公斤的1,4-DCB.
- 在提高机械性能和增加环境影响之间存在一种权衡.
结论:
- NaOH处理有效地提高了亚麻纤维增强HDPE复合材料的机械性能.
- 与NaOH处理相关的环境成本需要对可持续的工业应用进行仔细考虑.
- 技术环境分析为根据技术性能和生态足迹选择合适的化学处理提供了一个框架.
更多相关视频
10:47Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder
Published on: May 22, 2014
27.5K
07:15A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli
Published on: December 11, 2014
13.8K
相关概念视频
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
