无PFAS (和多基物质) 的成型纤维:未来已经在这里了
1School of Forest Resources, University of Maine, 5755 Nutting Hall, Orono, Maine 04469-5755.
Biointerphases
|July 20, 2023
概括
由于环境问题,成型纤维包装的需求正在增加. 一种新方法使用纤维素纳米纤维来取代PFAS化学品,解决制造可持续食品包装的行业挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 越来越多的人对可持续食品包装的需求,包括可回收和可堆肥的选择.
- 关于生态系统中塑料污染的环境问题.
- 在食品包装中使用的per-和多基物质 (PFAS) 的逐步淘汰,给行业带来了挑战.
研究的目的:
- 为应对在成型纤维食品包装中取代PFAS的挑战.
- 引入一种新的解决方案,以实现与食品接触材料的防水和防脂性能.
主要方法:
- 在成型纤维物体表面应用纤维素纳米纤维层.
- 在食品包装中开发无PFAS表面处理方法.
主要成果:
- 在成型纤维食品包装中成功开发了一种替代PFAS的方法.
- 纤维素纳米纤维为防水/防脂提供了一个可行的替代方案.
结论:
- 纤维素纳米纤维表面处理为 PFAS 在成型纤维食品包装中的替代提供了一个可持续的解决方案.
- 这一创新支持该行业向环保食品接触材料的转型.
更多相关视频
09:04Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow
Published on: April 18, 2019
12.5K
07:06Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique
Published on: September 28, 2022
1.6K
相关概念视频
01:20Types of Step-Growth Polymers: Polyesters
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
01:27Bioplastics
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...
01:28Microbial 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...