【作者】 矫卫红；

【导师】 陈南梁；

【作者基本信息】 东华大学 ， 针织工程， 2004， 硕士

【摘要】 产业用纺织品作为纺织品的三大应用领域之一，正在蓬勃地向前发展。目前，世界上产业用纺织品的生产技术绝大多数采用传统的机织工艺，机织物约占产业用纺织品总量的50％，非织造织物约占总量的40％，而经编产业用纺织品所占的比例非常小。但是由于经编织物的组织结构具备的许多特点更适合应用于复合材料，而且其生产效率高，因而得到了广泛的重视，发展势头迅猛，正不断替代其他产品。 本课题主要研究以机织物和经编双轴向织物为基布，经过贴合、压延和涂层后整理得到的两种篷盖类柔性复合材料的一些机械性能，并通过分析试验数据对两种材料作了全面的比较，最后总结了影响柔性复合材料机械性能的因素。另外，本文还对各种测试方法做了较为全面的对比，提出了一些有效的建议。这对于完善我国在同类产品的测试方法方面是一个很好的促进和借鉴，同时对同类产品的实际生产也具有很好的技术指导意义。 本课题在研究过程中，采集了大量的试验试样，有不同的纱线细度，不同的织物密度，不同的织物结构，不同的织物后整理方式即：涂层、压延和贴合。本文除了测试各个试样的单位面积质量、密度、厚度等参数指标外，主要对它们的物理机械性能进行测试并对试验数据进行必要的比较和分析。 首先，本文对两种柔性复合材料进行拉伸试验，对试验数据进行分析与比较，并总结了影响材料拉伸断裂性能的多个因素，最后得出结论。经编双轴向织物由于衬入了直接取向的平直纱线层而使其拉伸强力得到显著提高，而且纱线的物理机械特性利用率非常高，因此织物密度可以减少，这使得织物在具有很高的总体强力下可减少重量。从经济的眼光来看，可以节约原材料，从而降低生产费用。 其次，本文又对比研究了两种柔性复合材料的撕裂性能，总结了影响材料撕裂性能的多个因素。进一步证实了经编双轴向织物用作篷摘要盖类柔性复合材料的基布具有机织物无法比拟的优越性。本文还研究得出柔性复合材料撕裂强力和拉伸断裂强力之间具有一致性关系。此外，本文还考察了国内外进行撕裂试验的不同的测试标准，并进行比较，寻求各个测试标准之间的一种内在的参数联系，以方便业内人士对不同测试标准下得到的数据进行简单的转换和比较。最后，本文还对如何更加有效、更加符合实际情况的进行柔性复合材料的撕裂试验提出了一些建议。 再次，本文测试了两种柔性复合材料的剥离性能。剥离性能是除了撕裂性能外篷盖类柔性复合材料的另一个非常重要的参数指标。本文主要研究了不同的后整理工艺对织物剥离性能的影响。但由于试验条件所限，经过涂层整理的织物其剥离试验很难进行，所以本文关于这方面的试验数据参考了有关公司的生产技术资料。 最后，本文指出了本课题中的一些不足之处，为今后的进一步研究提出了一些建议，还预测了篷盖类柔性复合材料的广阔的发展前景和发展领域。更多还原

【Abstract】 As one of the three biggest applied fields of the textile fabrics, industrial textile fabrics are advancing very quickly. In the present world, most production technologies of industrial textile fabrics are traditional weaving technique. In all the industrial textile fabrics, woven fabrics roughly account for 50%, non-woven fabrics account for 40% while warp-knitted fabrics only account for a very small rate. However, warp-knitted fabrics have many advantages which act as composites better and can be produced efficiently, so they have been catching more and more attention, their developing momentum is very strong, and they are taking the places of other products step by step.In this thesis we mainly studied some mechanical performances of the tenting flexible composites, in which there are mainly two substrates: woven fabrics and warp-knitted bi-axial fabrics. We compared the two composites by analyzing the testing data and then summarized the factors affecting the mechanical performances of the tenting flexible composites. Additionally, we made more comparisons between different testing standards and gave forward some effective suggestion. This is a good promotion and reference for establishing our national testing standards of the mechanical performances of the homogeneous products, and meanwhile it has good technical instructive significance for the practical production of the homogeneous products.During the course of the research, we collected a quantity of testing samples, including: different yarn counts, different fabric density, different fabric structures, different ways of fabric finishing: coating, calendering and laminating. In this thesis we mainly studied theirmechanical properties, compared and analyzed the testing data, as well as the determination of the parameters such as the mass per unit area, density, thickness of the fabrics.First, we did the tensile experiments on the two types of flexible composites, compared and analyzed the testing data, summarized several factors affecting the tensile strength, and finally drew the conclusions. That is, the tensile strength of warp-knitted bi-axial fabrics is improved a lot because directly oriented parallel and noncrimped yarns are inserted into the structures. Furthermore, the availability of the mechanical properties of yarns is quite high, which makes it possible to reduce the density of the fabric and therefore reduce the mass of fabric when the whole high strength of fabric is still ensured. Economically, with this excellent tensile performance, we can dramatically save raw materials and reduce the production cost.Second, we further studied and compared the tear performances of the two types of flexible composites and summarized several factors affecting the tear performance. We confirmed that warp-knitted bi-axial fabrics are superior to woven fabrics in tearing when used as the substrates of tenting flexible composites. We also studied the linear relationship between the tensile and tear performance of the flexible composites. At the same time, we researched and compared the domestic and foreign tear testing standards, trying to find out the internal parametric relationship among them, in order that the researchers can simply and conveniently transfer and compare the data which are obtained under the different testing standards. Besides, we put forward some suggestion on how to do the tear experiment on flexible composites more effectively and practically.Third, we tested the peeling performances of the two types of flexible composites. The peeling performance is another importantparameter index as well as the tear performance. Here we studied the effects which the different ways of finishing cause. However, the peeling test is very difficult to carry out because of the limited testing conditions, so here we referred the technical data of the concerned companies.In this thesis, however, there are still some shortages that should be improved in the future. At the end of this thesis we foresaw the developing prosp更多还原