Afzali Naniz Moqaddaseh, Bodaghi Mahdi, Safar Johari Majid, Zolfagharian Ali
Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK.
Department of Textile Engineering, School of Material Engineering & Advanced Processes, Amirkabir University of Technology, Tehran 158754413, Iran.
Polymers (Basel). 2020 Mar 19;12(3):682. doi: 10.3390/polym12030682.
This paper aims to investigate the effects of fiber hybridization technique on the mechanical behaviors of non-absorbable braided composite sutures. Fifteen types of hybrid braided sutures (HBSs) made of polyester (PET), polypropylene (PP), and polyamide 6 (PA6) are produced and tested to measure ultimate tensile strength (UTS), maximum strain, elastic modulus, and breaking toughness. Based on the results, it is observed that the suture material plays a significant role in the tensile and mechanical performance of HBSs, and they can be tailored through the different combinations of yarns according to the required mechanical properties. Experiments exhibit occurrence positive hybrid effect in both maximum strain and elastic modulus, and negative hybrid effect in UTS. The optimal tensile performance is associated with the hybrid structure comprising 75% PA6-12.5% PET-12.5% PP. This means the ternary structure with higher PA6 content along with PP and PET, demonstrates a synergistic effect. Thus, such a ternary composite structure is very promising for the design of novel non-absorbable sutures. Due to the absence of similar results in the specialized literature, this paper is likely to advance the state-of-the-art composite non-absorbable sutures and contribute to a better understanding of the hybridization concept for optimizing composite material systems.
本文旨在研究纤维混杂技术对不可吸收编织复合缝线力学性能的影响。制备并测试了由聚酯（PET）、聚丙烯（PP）和聚酰胺6（PA6）制成的15种混杂编织缝线（HBS），以测量其极限拉伸强度（UTS）、最大应变、弹性模量和断裂韧性。基于实验结果发现，缝线材料在HBS的拉伸和力学性能中起着重要作用，并且可以根据所需的力学性能通过不同的纱线组合进行定制。实验表明，在最大应变和弹性模量方面均出现了正混杂效应，而在UTS方面出现了负混杂效应。最佳拉伸性能与包含75% PA6 - 12.5% PET - 12.5% PP的混杂结构相关。这意味着PA6含量较高且含有PP和PET的三元结构表现出协同效应。因此，这种三元复合结构在新型不可吸收缝线的设计方面非常有前景。由于专业文献中缺乏类似结果，本文可能会推动复合不可吸收缝线技术的发展，并有助于更好地理解用于优化复合材料系统的混杂概念。
