Abstract When tendon injuries present a too large damage extension, the conventional treatment options do not result, so a new prosthetic device needs to be developed to partially replace a tendon. Therefore, in this study, different braided textile structures based on polypropylene (PP) and poly (ethylene terephthalate) (PET) multifilament yarns were developed, using a textile technology-based technique, in order to mimic the fibrous structure of tendons. Structures with different architectures were developed using different PP or PET yarns number and different braiding take-up rates, which consequently leads to different braid angles. The braids architecture influenced the porosity level, swelling profile, wicking ability and mostly their mechanical behavior. It was observed that the load at failure of the braids was mainly controlled by the number of yarns, but the strain level was mostly influenced by the take-up rate and consequently by the braid angle. Regarding the stiffness level, it results from a combination of the yarns number and braid angle. The structure based on 16 PET yarns, produced with the highest take-up rate, revealed a very promising creep and force-relaxation behavior for the final application, as well as a very interesting fatigue resistance.

中文翻译：

---

用于跟腱部分替代的聚丙烯 (PP) 和聚对苯二甲酸乙二醇酯 (PET) 复丝编织织物结构的表征

摘要 当肌腱损伤呈现出过大的损伤延伸时，传统的治疗方案不会产生，因此需要开发一种新的假肢装置来部分替代肌腱。因此，在本研究中，使用基于纺织技术的技术开发了基于聚丙烯 (PP) 和聚对苯二甲酸乙二醇酯 (PET) 复丝纱线的不同编织纺织结构，以模拟肌腱的纤维结构。使用不同的 PP 或 PET 纱线数量和不同的编织卷取率开发了具有不同结构的结构，从而导致不同的编织角度。辫子结构影响孔隙率水平、膨胀轮廓、芯吸能力，主要是它们的机械性能。据观察，编织物破坏时的载荷主要受纱线数量控制，但应变水平主要受卷取率的影响，因此受编织角度的影响。关于刚度水平，它是由纱线数量和编织角度的组合得出的。基于 16 条 PET 纱线的结构，以最高的卷取率生产，显示出非常有希望的最终应用的蠕变和力松弛行为，以及非常有趣的抗疲劳性。