열가소성 직물탄소복합소재 사출 성형품의 표면 함침 개선에 관한 연구
A study on the improvement of impregnation on the surface of injection-molded thermoplastic woven carbon fabric composite
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In molding of continuous fiber-reinforced thermoplastic composites, it is very difficult to impregnate between the reinforcements and the matrix since the matrix has a high melting temperature and high viscosity. Therefore, most of composite molding processes are divided in the manufacturing processes of intermediate materials called prepreg and the forming of products from intermediate materials. The divided process requires additional facilities and thermoforming, and they increase the cycle time and cost of composite products. These problems can be resolved by combining the continuous fiber-reinforced composite molding process with injection molding. However, when a composite material is manufactured by inserting woven fabric into the injection mold, poor impregnation occurs on the surface of the molded product. It affects the properties of the composites. In this paper, through an impregnation experiment using cores with different heat transfer rates and pore densities, the reason for the poor impregnation was confirmed, and molding experiments were conducted to produce composite with improved surface impregnation by inserting the mesh. And also, the surface impregnation and deformation of composites molded using different types of mesh were compared with each other.
Abstract
In molding of continuous fiber-reinforced thermoplastic composites, it is very difficult to impregnate between the reinforcements and the matrix since the matrix has a high melting temperature and high viscosity. Therefore, most of composite molding processes are divided in the manufacturing processes of intermediate materials called prepreg and the forming of products from intermediate materials. The divided process requires additional facilities and thermoforming, and they increase the cycle time and cost of composite products. These problems can be resolved by combining the continuous fiber-reinforced composite molding process with injection molding. However, when a composite material is manufactured by inserting woven fabric into the injection mold, poor impregnation occurs on the surface of the molded product. It affects the properties of the composites. In this paper, through an impregnation experiment using cores with different heat transfer rates and pore densities, the reason for the poor impregnation was confirmed, and molding experiments were conducted to produce composite with improved surface impregnation by inserting the mesh. And also, the surface impregnation and deformation of composites molded using different types of mesh were compared with each other.
참고문헌 (17)
- H. Adam, "Carbon Fibre Automotive Applications", Materials & Design, 18(4, pp.6) (1997), 349~355
- S. Y. Fu, "Tensile properties of short glass fiber and short carbon fiber reinforced polypropylene composites", Composites : Part A, 31, pp.1117~1125 (2000)
- F. Rezaei, "Development of Short Carbon Fiber Reinforced Polypropylene Composite for Car Bonnet", Polymer Plastics Technology and Engineering, 47, pp.351~357 (2008)
- D. K. Rajak, "Fiber Reinforced Polymer Composites : Manufacturing, Properties, and Applications", Polymers, 11(1667) (2019)
- S. Lim, "High Performance Thermoplastic Composites", Polymer science and technology, 6(5), pp.451~458 (1995)
- 김기석, "자동차 경량화를 위한 탄소섬유강화 복합재료의 동향", 엘라스토머 및 콤포지트, 47(1), pp.65~74 (2012), 한국고무학회
- S. Kim, "Development Trend for Thermoplastic Polymer Composite", Polymer Science and Technology, 24(1) (2013)
- 이병언, "고성능 열가소성 복합재료를 이용한 성형 공정 기술", 소성∙가공, 27(1), pp.60~65 (2018), 한국소성∙가공학회
- 이윤선, "탄소섬유를 이용한 열가소성 복합재료 시트 제조 및 특성", Composites Research, 28(4), pp.168~175 (2015), 한국복합재료학회
- S. T. Jespersen, "Film stacking impregnation model for a novel net shape thermoplastic composite preforming process", Composites Science and Technology, 68, pp.1822~1830 (2008)
- L. Long, "Mechanical properties of commingled yarn composites", Indian Journal of Fibre & Textile Research, 27, pp.287~289 (2002)
- S. Jo, "Simulation of Compression Molding with Extensional & Shear Viscosity for Fiber-Reinforced Polymeric Composites", Transactions of Materials Processing, 6(4), pp.311~318 (1997)
- S. H. Kim, "Direct impregnation of thermoplastic melt into flax textile reinforcement for semi-structural composite parts", Industrial Crops and Products, 95, pp.651~663 (2017)
- A. G. Gibson, "Impregnation technology for thermoplastic matrix composites", Composites Manufacturing, 3(4), pp.223~233 (1992)
- S. C. Mantell, "Manufacturing Process Models for Thermoplastic Composites", Composite Materials, 26(16), pp.2348~2377 (1992)
- I. Y. Chang, "Recent Development in Thermoplastic Composites : A Review of Matrix Systems and Processing Methods", Thermoplastic Composite Materials, 1, pp.277~296 (1988)
- 신익재, "Fabric 형태에 따른 열가소성수지 적층복합재료의 성형성", 대한기계학회논문집 A, 27(8), pp.1338~1346 (2003), 대한기계학회