纤维基材料的仿生学研究动向

纤维基技术的应用对仿生学的成功发展呈现出巨大的潜力,因为宇宙成物在生长过程、多毛结构和增强纤维方面具有许多相似性.约七年前,邓肯道夫纺织技术与工艺研究所协同众位生物学家一起开创了仿生学的研发,至今方兴未艾.     

用于化学纤维加工的气圈控制系统的发展

在AiF研究项目的(AiF编号:14315)的范围内,通过在邓肯道夫纺织工艺研究所(ITV)对锭子的开发,即应用旋转纱线制动装置和经过优化的钢领钢丝圈系统,研究了改善加工化学纤维的环锭纺设备的性能的可能性.     

新颖的atmofil花式室内装饰织物

介绍了用DSE异收缩纱制织atmofil花色织物时的工艺条件,后整理对织物外观和性能的影响,以及该类织物的应用范围.     

精细粗梳工艺生产高档纱

AIF-Nr.14827N是德国联邦工业合作研究会(AIF)的一项研究课题,旨在研发出一种既能提高短纤维排除率又能减少棉结的粗梳工艺,可在生产线密度20tex以上的纱线时省去精梳工艺。     

紧密纺纱线的预湿对织造性能的影响

描述了德国邓肯道夫纺织工艺研究所(ITV)将目前有关预湿的研究结果转移、拓展并试用于紧密纺和喷气纺纱线的研究过程.比较了紧密纺和环锭纺纱线的试验结果.紧密纺和涡流纺的经济优势和节约成本来自浆料消耗的减少和织造中与磨损相关的问题的减少.     

Abstracts

Journal of the American Oil Chemists' Society -     

Development,preclinical evaluation and validation of a novel quick vascular closure device for transluminal,cardiac and radiological arterial catheterization

Following percutaneous coronary intervention, vascular closure devices (VCDs) are increasingly used to reduce time to ambulation, enhance patient comfort, and reduce potential complications compared with traditional manual compression. Newer techniques include complicated, more or less automated suture devices, local application of pads or the use of metal clips and staples. These techniques often have the disadvantage of being time consuming, expensive or not efficient enough. The VCD failure rate in association with vascular complications of 2.0–9.5%, depending on the type of VCD, is still not acceptable. Therefore, the aim of this study is to develop a self-expanding quick vascular closure device (QVCD) made from a bioabsorbable elastic polymer that can be easily applied through the placed introducer sheath. Bioabsorbable block-co-polymers were synthesized and the chemical and mechanical degradation were determined by in vitro tests. The best fitting polymer was selected for further investigation and for microinjection moulding. After comprehensive haemocompatibility analyses in vitro, QVCDs were implanted in arterial vessels following arteriotomy for different time points in sheep to investigate the healing process. The in vivo tests proved that the new QVCD can be safely placed in the arteriotomy hole through the existing sheath instantly sealing the vessel. The degradation time of 14 days found in vitro was sufficient for vessel healing. After 4 weeks, the remaining QVCD material was covered by neointima. Overall, our experiments showed the safety and feasibility of applying this novel QVCD through an existing arterial sheath and hence encourage future work with larger calibers.