Yu Seonghun, Lee Junhee, Kim Jongkyu, Chang Hojong, Kang Chansol, Sim Jeehyun
DYETEC (Dyeing & Finishing Technology Institute), Computer Aided Engineering (CAE) Center, Daegu 41706, Republic of Korea.
Department of Energy Engineering, Shinhan University, 95, Hoam-ro, Uijeongbu-si 11644, Republic of Korea.
Polymers (Basel). 2023 Oct 11;15(20):4055. doi: 10.3390/polym15204055.
In this research, a self-reinforced composite material was manufactured using a single polyethylene material, and this self-reinforced composite material has excellent recyclability and is environmentally friendly compared to composite materials composed of other types of material, such as glass fiber reinforced composites (GFRP) and carbon fiber reinforced composites (CFRP). In this research, the manufactured self-reinforced composite material consists of an outer layer and an inner layer. To manufacture the outer layer, low density polyethylene (LDPE) films were laminated on high density polyethylene (HDPE) fabrics and knitted fabrics, and composite materials were prepared at various temperatures using hot stamping. A 3D printing process was utilized to manufacture the inner layer. After designing a structure with a cross-sectional shape of a triangle, circle, or hexagon, the inner layer structure was manufactured by 3D printing high-density polyethylene material. As an adhesive film for bonding the outer layer and the inner layer, a polyethylene-based self-reinforced composite material was prepared using a low-density polyethylene material. Input data for simulation of self-reinforced composite materials were obtained through tensile property analysis using a universal testing machine (UTM, Shimadzu, Kyoto, Japan), and the physical property values derived as output data and actual experimental values were obtained. As a result of the comparison, the error rate between simulation data and experimental data was 5.4% when the shape of the inner layer of self-reinforced composite material was a hexagon, 3.6% when it was a circle, and 7.8% when a triangular shape showed the highest value. Simulation in a virtual space can reduce the time and cost required for actual research and can be important data for producing high-quality products.
在本研究中，使用单一聚乙烯材料制造了一种自增强复合材料，与由其他类型材料组成的复合材料（如玻璃纤维增强复合材料（GFRP）和碳纤维增强复合材料（CFRP））相比，这种自增强复合材料具有出色的可回收性且环保。在本研究中，制造的自增强复合材料由外层和内层组成。为制造外层，将低密度聚乙烯（LDPE）薄膜层压在高密度聚乙烯（HDPE）织物和针织物上，并使用热冲压在不同温度下制备复合材料。利用3D打印工艺制造内层。在设计出横截面形状为三角形、圆形或六边形的结构后，通过3D打印高密度聚乙烯材料来制造内层结构。作为用于粘结外层和内层的粘结膜，使用低密度聚乙烯材料制备了一种聚乙烯基自增强复合材料。通过使用万能材料试验机（UTM，日本岛津公司，京都）进行拉伸性能分析，获得了自增强复合材料模拟的输入数据，并得到了作为输出数据导出的物理性能值和实际实验值。比较结果表明，当自增强复合材料内层形状为六边形时，模拟数据与实验数据之间的误差率为5.4%，为圆形时为3.6%，三角形时误差率最高，为7.8%。在虚拟空间中的模拟可以减少实际研究所需的时间和成本，并且对于生产高质量产品可能是重要的数据。
