使用消耗的咖啡粉作为填充剂,以制备用于食品包装应用的聚烯复合材料
Wenmin Song1, Yuncong Yang1, Xiuwen Cheng1
1The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, National Engineering Lab for Textile Fiber Materials and Processing Technology, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China.
Microscopy research and technique
|July 17, 2023
概括
用过的咖啡粉 (SCG) 通过热处理回收成聚烯 (PP) 复合材料. 空气处理有效地去除咖啡油,增强可用于食品包装的SCG/PP特性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 废物管理 废物管理
背景情况:
- 越来越多的环境污染和能源需求需要可持续的替代品来代替不可降解的塑料.
- 来自生物质的废物为塑料添加剂开发和资源价值化提供了一个有希望的途径.
研究的目的:
- 调查使用过的咖啡粉 (SCG) 作为聚烯 (PP) 复合材料中的填充剂的回收.
- 评估热处理大气对SCG性能和SCG/PP复合材料性能的影响.
主要方法:
- 在不同的大气条件下 (空气和) 经过热处理.
- 使用经过处理的SCG作为填料制造的SCG/PP复合材料.
- 分析了经过处理的SCG和SCG/PP复合材料的性能,包括油含量,机械性能和吸水能力.
主要成果:
- 与处理相比,在空气中进行热处理更有效地从SCG中去除咖啡油残留物.
- 在SCG中较低的残留油含量提高了其可研磨性和与PP矩阵的兼容性.
- SCG/PP复合材料的吸水率降低,疏水性增加,机械性能提升.
结论:
- 在空气中进行热处理是一种高效和环保的方法,用于制备PP复合材料的SCG填充剂.
- SCG/PP复合材料的改进性能表明它们适用于食品包装等应用.
相关概念视频
Additives and Fillers in Concrete
115
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
115
Types of Step-Growth Polymers: Polyesters
2.3K
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...
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...
2.3K
Superplasticizers
105
Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...
105


