基托桑基生物塑料薄膜中的绿色添加剂:物理,机械和化学特性
Kordula B Schnabl1, Laurens D B Mandemaker1, Klaas G J Nierop2
1Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials Science and Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands.
ChemSusChem
|August 7, 2023
概括
研究人员从可再生资源开发了可调整的基托基聚合物材料. 通过结合各种添加剂,他们创造了具有从硬和脆到软和灵活的属性的自支膜,为可持续的消费品铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续材料 可持续材料
背景情况:
- 对基于化石燃料的聚合物的替代品的需求推动了对可再生原材料的研究.
- 来自基的奇托是一种有前途的生物聚合物,但需要对各种应用进行性能修改.
- 定制机械性能,如灵活性,硬度和透明度,对于基托桑的更广泛使用至关重要.
研究的目的:
- 探索绿色添加剂的使用,以改变酸盐的特性.
- 为了创建具有一系列机械特性的基托桑基复合膜.
- 为了研究不同类型的添加剂对素膜特性的影响.
主要方法:
- 酸盐被加工成自支的薄膜,使用来自绿色资源的各种添加剂.
- 添加剂被归类为线性,非线性或交叉连接,基于它们与酸盐的相互作用.
- 在酸中干燥素溶液以形成薄膜,并分析了再乙化效应.
主要成果:
- 酸盐复合材料表现出一系列的特性,从硬而易碎到软而灵活,这取决于添加剂.
- 非线性添加剂的吸收是有限的,而线性添加剂在实验中没有吸收限制.
- 多功能添加剂在酸性条件下在室温下诱导了基托桑交联.
- 通过酸溶解和干燥形成膜,导致重新乙化,增加材料硬度.
结论:
- 这项研究成功地证明了通过添加剂选择调整基托基聚合物特性的能力.
- 这种可调性是应用可再生酸盐聚合物在消费品中的重大进步.
- 了解添加相互作用 (线性,非线性,交联) 是控制最终材料特性的关键.
相关概念视频
Plasticizers
90
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
90
Polymer Classification: Stereospecificity
2.5K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.5K
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


