关于碳纤维织物增强聚的制备和工艺参数-机械性质关系的研究 (乙乙) 热塑性复合材料
Yan Wang1, Yanchao Yang1, Hongbo Zhang1
1Key Laboratory of High Performance Plastics, Ministry of Education, National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymers, College of Chemistry, Jilin University, Changchun 130012, China.
Polymers
|April 13, 2024
概括
一种新的薄膜堆叠方法改善了碳纤维织物增强聚乙 (CFF-PEEK) 复合材料的制造. 优化的热压参数显著提高了机械性能,如间层剪切强度和曲强度.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物工程 聚合物工程
- 复合材料制造业 复合材料制造业
背景情况:
- 碳纤维织物增强聚乙乙 (CFF-PEEK) 复合材料提供卓越的机械性能和灵活性.
- 在CFF-PEEK复合材料形成的挑战包括高聚乙烯 (PEEK) 粘度和纤维捆结构,阻碍树脂流动.
- 传统的预制材料面临着先进的热塑性复合材料旨在克服的局限性.
研究的目的:
- 开发一种优化的热压加工工艺,用于使用薄膜堆叠方法,用于平面织成的CFF-PEEK热塑性复合材料.
- 研究关键工艺参数对CFF-PEEK复合材料质量和机械性能的影响.
- 确定最佳的加工条件,以形成无缺陷的复合材料和增强材料性能.
主要方法:
- 采用薄膜堆叠方法,用于热压平面织成的CFF-PEEK热塑性复合材料.
- 过程参数包括成型温度,压力,时间和压缩前进行系统变化和分析.
- 为了评估机械性质,评估了层间剪切强度 (ILSS),拉力强度和屈曲强度.
- 超声波扫描显微镜和扫描电子显微镜被用于质量评估和故障模式分析.
主要成果:
- 最佳的工艺参数被确定为410°C的成型温度,10MPa的成型压力,60分钟的成型时间,并包含一个预压缩步骤.
- 在优化条件下,CFF-PEEK复合材料实现了62.5 MPa的ILSS,754.4 MPa的屈曲强度和796.1 MPa的抗拉强度.
- 薄膜堆叠方法有效解决了树脂流量问题,导致树脂分布均,防止复合材料缺陷.
结论:
- 开发的薄膜堆叠热压方法对于生产高质量的CFF-PEEK热塑性复合材料是有效的.
- 优化的工艺参数显著提高了CFF-PEEK复合材料的机械性能.
- 这项研究为优化纤维织物增强热塑性复合材料的加工参数及其对机械性能的影响提供了关键的见解.
更多相关视频
06:26Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
Published on: October 6, 2017
8.3K
06:02Disentangling High Strength Copolymer Aramid Fibers to Enable the Determination of Their Mechanical Properties
Published on: September 1, 2018
7.1K
相关概念视频
01:20Types 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
01:22Fiber Reinforced Concrete
75
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
75