Shape recovery properties of 3D printed re-entrant strip using shape memory thermoplastic polyurethane filaments with various temperature conditions

IF 2.3 4区 管理学 Q1 MATERIALS SCIENCE, TEXTILES
Imjoo Jung, Sunhee Lee
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Abstract

In this research, to confirm the applicability as the actuator of the re-entrant (RE) structure strip using 3D printing with shape memory thermoplastic polyurethane material, two types of 3D printing infill conditions and five extension temperature conditions were applied. REstrip was analyzed through differential scanning calorimetry (DSC), tensile properties, Poisson’s ratio properties, and shape recovery properties according to temperature conditions. The DSC results showed that the glass transition temperature peaks of the SMTPU filament and the 3D printed REstrip were in the range of about 30–60 °C. In terms of tensile properties, the initial modulus, maximum stress, and yield stress of REstrip all decreased, while the elongation at break increased with increasing extension temperature. In terms of Poisson’s ratio, it was confirmed that as the extension temperature rises, Poisson’s ratio shows a positive value at a lower elongation, and the deformation is best at 50 °C. As a result of the shape memory property, the shape recovery ratio tended to decrease as the tensile deformation temperature increased.

形状记忆型热塑性聚氨酯长丝在不同温度条件下3D打印可入式长条的形状恢复性能
在本研究中,为了验证形状记忆热塑性聚氨酯材料3D打印作为再入式(RE)结构条执行器的适用性,采用了两种3D打印填充条件和五种延伸温度条件。通过差示扫描量热法(DSC)、拉伸性能、泊松比性能以及不同温度条件下的形状恢复性能对REstrip进行了分析。DSC结果表明,SMTPU长丝和3D打印REstrip的玻璃化转变温度峰值在30-60℃左右。拉伸性能方面,随着延伸温度的升高,REstrip的初始模量、最大应力和屈服应力均降低,断裂伸长率升高。在泊松比方面,证实了随着延伸温度的升高,在较低的延伸率下,泊松比为正值,在50℃时变形最佳。由于形状记忆的特性,随着拉伸变形温度的升高,形状回复率有降低的趋势。
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来源期刊
Fashion and Textiles
Fashion and Textiles Business, Management and Accounting-Marketing
CiteScore
4.40
自引率
4.20%
发文量
37
审稿时长
13 weeks
期刊介绍: Fashion and Textiles aims to advance knowledge and to seek new perspectives in the fashion and textiles industry worldwide. We welcome original research articles, reviews, case studies, book reviews and letters to the editor. The scope of the journal includes the following four technical research divisions: Textile Science and Technology: Textile Material Science and Technology; Dyeing and Finishing; Smart and Intelligent Textiles Clothing Science and Technology: Physiology of Clothing/Textile Products; Protective clothing ; Smart and Intelligent clothing; Sportswear; Mass customization ; Apparel manufacturing Economics of Clothing and Textiles/Fashion Business: Management of the Clothing and Textiles Industry; Merchandising; Retailing; Fashion Marketing; Consumer Behavior; Socio-psychology of Fashion Fashion Design and Cultural Study on Fashion: Aesthetic Aspects of Fashion Product or Design Process; Textiles/Clothing/Fashion Design; Fashion Trend; History of Fashion; Costume or Dress; Fashion Theory; Fashion journalism; Fashion exhibition.
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