相关实验视频
Updated: Jun 22, 2025

07:59
Molecular Entanglement and Electrospinnability of Biopolymers
Published on: September 3, 2014
14.7K
制备具有不同粉含量的化粉,并将其与聚乙烯酸盐混合
Shuning Liu1, Shi Tang1, Yuanhao Lu1
1School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China.
International journal of molecular sciences
|June 27, 2024
概括
与聚乙烯酸盐 (PBS) 混合的化粉改善了材料性能. 低粉含量的复合材料,特别是化玉米粉/PBS (EWS/PBS),表现出增强的相互作用,性,疏水性和降解性.
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
- 生物复合材料是一种生物复合材料.
背景情况:
- 聚乙烯酸盐 (PBS) 是一种可生物降解的聚,在可持续材料中具有潜在的应用.
- 粉是一种天然聚合物,可以进行修改,以提高其与PBS等合成聚合物的兼容性.
- 了解粉结构 (粉含量) 和复合材料特性之间的关系对于材料设计至关重要.
研究的目的:
- 为了研究不同粉含量的粉对聚乙烯酸盐 (PBS) 复合物的性能的影响.
- 为了合成和表征化菜粉/PBS (EMS/PBS),化玉米粉/PBS (ECS/PBS) 和化玉米粉/PBS (EWS/PBS) 复合物.
- 评估开发的复合材料的界面兼容性,热稳定性,机械性能和降解行为.
主要方法:
- 三种不同粉含量 (高,中,低) 的三种粉类型的化.
- 化粉与聚乙烯酸盐 (PBS) 的混合,以形成复合材料.
- 使用X射线衍射 (XRD) 进行晶体结构的表征,热分析 (热解温度),机械测试 (破裂时的延长),质测量 (存储模量G',复杂粘度η*),降解研究.
主要成果:
- 含有高粉素的复合材料 (EMS/PBS,ECS/PBS) 呈现出V型晶体结构.
- 低粉含量的化玉米粉/PBS (EWS/PBS) 显示出受损的晶体以及与PBS的优异相互作用和接口兼容性.
- EWS/PBS表现出最全面的化和塑化,导致更低的存储模量和复杂粘度,表明性增加.
- 所有混合物都显示了与纯PBS相比,在断裂时延长的改善.
- EWS/PBS表现出最好的疏水性和降解性能.
结论:
- 乙化粉中的粉含量显著影响PBS复合材料的性能.
- 低粉含量 (高粉素含量) 在化粉中增强了界面结合,减少了分子间力量,并破坏了晶体结构,从而提高了性和可加工性.
- EWS/PBS复合材料为开发高性能,具有增强水性和降解特性的可生物降解材料提供了有前途的方向.
相关概念视频
Types of Step-Growth Polymers: Polyesters
2.2K
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...
2.2K
Alkylation of β-Diester Enolates: Malonic Ester Synthesis
3.4K
Malonic ester synthesis is a method to obtain α substituted carboxylic acids from ꞵ-diesters such as diethyl malonate and alkyl halides.
3.4K

