US-Egypt Cooperative Research: Synthesis, Characterization and Application of Reactive Sizes to Cotton Warps

说明：该奖项是为了支持北卡罗来纳州罗利市北卡罗莱纳州立大学纺织学院Abdelfattah Seyam博士和埃及开罗国家研究中心纺织研究部Nabil abu - zeid博士的合作项目。这项联合研究的目的是寻求纺织品制造中使用的上浆材料的改进。一个目标是减少或消除删除尺寸的需要。目前的尺寸被设计为在处理后被洗掉，因此在用于洗涤的水中释放出相当数量的化学废物。第二个目标是证明永久性施胶可以提高最终产品的质量。为了实现这一目标，研究人员计划寻找浆料与棉织物的纤维素分子之间的化学键。为此，将使用聚乙烯醇（PVA）。这项工作将涉及通过引入：n -甲基基将不同分子大小的PVA转化为反应产物；氯;环氧树脂组;和悬垂双键。这些反应将在各种条件下进行，以控制反应，从而控制产物的反应性及其其他性质。然后将选定的反应性PVA产品应用于棉经纱，并对所得纱线进行机织物所需性能的测试。范围：本研究项目涉及来自两家知名纺织化学和制造研究中心的具有丰富经验的科学家。这项研究的目的是开发一种可以作为永久尺寸的产品，这种产品可以赋予纱线某些特性，如质地、耐磨性和重量。开罗的NRC已经在将反应性化合物应用于典型淀粉上浆材料方面做了大量的探索性工作。这位北卡州立大学的研究人员是树脂处理棉纱领域的专家。这两位科学家的合作将受益于他们互补的专业知识，以及两所机构广泛的化学和制造设施。项目目标对埃及和美国都有利，因为他们都对改善纺织业对环境的影响以及产品质量有浓厚的兴趣。这一提议符合INT在互利领域支持美国与外国合作的目标。该项目得到了美国-埃及联合基金项目的支持，该项目向两国的科学家和工程师提供赠款，以开展这些合作活动。

Description: This award is for support of a cooperative project by Dr. Abdelfattah Seyam, College of Textiles, at North Carolina State University, Raleigh, NC, and Dr. Nabil Abou-Zeid, of the Textile Research Division, the National Research Center in Cairo, Egypt. The goal of this joint research is to seek improvement in the sizing materials used in manufacturing of textiles. One objective is to reduce or eliminate the need for removing the sizing. Current sizes are designed to be washed off after treatments, thus releasing considerable amounts of chemical waste in the water used for washing. A second objective is to demonstrate that it is possible to improve the quality of the final product with the permanent sizing. To accomplish this the researchers plan to seek chemical bonding between the sizing with the cellulose molecules of the cotton fabric. For this purpose, polyvinyl alcohol (PVA) will be used. The work will involve converting PVA with different molecular sizes to reactive products through introduction of: N-methylol groups; chlorine; epoxy groups; and pendent double bonds. These reactions will be carried out under various conditions to control the reaction and hence the reactivity of the products and their other properties. Selected reactive PVA products would then be applied to cotton warps, and the resultant yarn will be tested for the desirable properties of the woven fabrics. Scope: This research project involves scientists with significant experience from two well known research centers in the area of textile chemistry and manufacturing. The objectives of the research is to develop products that can be used as permanent sizes which can then impart to the yarns certain properties such as texture, wear, and weight. The NRC in Cairo has already done a significant amount of exploratory work in the area of applying reactive compounds to typical starch sizing materials. The NCSU researcher is an expert in the area of resin-treated cotton yarns. The collaboration by these two scientists will benefit from their complementary expertise as well as from the wide range of chemical and manufacturing facilities at the two institutions. The project objectives are of benefit to Egypt and to the US, since they both have strong interest in improving the environmental impact of the textile industry as well as the quality of the products. This proposal meets INT objective of supporting U.S.-foreign collaboration in areas of mutual benefit. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.