The project focuses on antibacterial functional materials and their application in high-sensitivity polyester fibers and products. The preparation of antibacterial functional materials, in-situ generation of antibacterial functional resins, formation of shaped/fine denier antibacterial fibers and structural design of knitwear, and dyeing Research and scale production of key technologies such as finishing. Load metal ion hybrid materials? Listening to such a professional term, it will make most people scratch their heads, but when it comes to antibacterial functional fiber, I believe that everyone will have a sudden feeling of openness - "It turned out to be antibacterial fiber." Yes, the design and preparation of supported metal ion hybrid materials is to better develop antibacterial functional fiber products. "Development and preparation of loaded metal ion hybrid materials and development of functional fibers and products" by Donghua University, Shanghai Defulong Chemical Fiber Co., Ltd., Taicang Rongwen Synthetic Fiber Co., Ltd. and Shanghai Kangbida Technology Industrial Co., Ltd. The basic research in fiber research and the field of finished product preparation have made outstanding contributions. “Hybrid technology is the support of high-tech fiber science and technology. The special functionality of inorganic materials and the easy processing characteristics of organic materials, regulating interface functions, and achieving 'cutting' and 'assembly' of material functions. Zhu Meifang, the first person in the project and dean of the School of Materials Science and Engineering at Donghua University, introduced. High-sensitivity fiber is a high-quality differential fiber, which is an important growth point for the development direction and economic benefits of the textile and chemical fiber industries. Antibacterial textiles are one of the most popular functional textiles for consumers. Especially in Japan, Europe and the United States, the market share is high, but the lack of product standards in China, the quality is uneven, affecting the healthy development of the market. However, the technical bottleneck of high-sensitivity + anti-bacteriality still needs to be broken. For example, the design and preparation of antibacterial materials are uncontrollable and non-adjustable; the antibacterial components in antibacterial resins are difficult to disperse and have poor stability; the fibers are poorly spinnable, engineering and market-oriented. The promotion is weak; the technology before and after is not matched, the technology innovation and integration are low. The innovation of the project provides strong technical support for the development of functional antibacterial products in the future. First of all, the project team developed a key technology for the preparation of hybrid materials with high dispersibility and high thermal stability loading metal ion antibacterial function with controllable morphology micro-nano structure. The antibacterial functional material has a controllable micro/nano structure with an average particle diameter of 200 nm to 300 nm, and does not change color or invariance during high temperature melt processing. Secondly, the key technology of in-situ polymerization and controlled in-situ oxidation-reduction of antibacterial nano-hybrid polyester resin was established. The nano-silver and silver chloride in the composite resin are uniformly dispersed, the particle diameter is about 400 nm, and the spinnability is good. Once again, the high-sensitivity antibacterial fiber was processed to achieve fine-denier and different-form processing, and the anti-bacterial polyester fiber with both functionality and comfort was realized. Through the breakthrough of key spinning technology such as profiled spinneret design and side blow cooling system structure optimization, we have successfully developed a series of high-sensitivity fine-denier multi-functional composite (including moisture-conducting, flame-retardant and UV-resistant) antibacterial polyester staple fiber. , filament and antibacterial polyester-cotton composite microfiber. Finally, the R&D staff also established an integrated technology chain for hybrid materials, moisture-inhibiting functional fibers, knitwear, functional finishing and dyeing, and product development. On this basis, we developed four series of 14 types of knitting products featuring super soft warm comfort in winter, super cool and comfortable in summer, and combined with antibacterial health and other composite functions. It has high-efficiency broad-spectrum antibacterial effect and washability. good. Shanghai Defulen, which specializes in the production of differentiated fibers, will naturally be able to work hard on such products. In the process of actually participating in R&D and production, especially after industrial application, from 2008 to now, the company's main business income and profits have achieved double growth. In 2008, the main business income increased by 193 million yuan. By 2012, it increased by 342 million yuan, corporate profits increased by 4.91 million yuan, and the annual growth rate reached 58.0%. Summarizing the success of the design and preparation of supported metal ion hybrid materials, in the words of the R&D team, they used four major technologies to overcome the four bottlenecks, namely: the development of hybrid material design and preparation technology to prepare two types of antibacterial materials AB- AC and AB-AS, the structure is controllable and the content is adjustable, which solves one of the bottlenecks. “The lack of antibacterial material design, the technology is uncontrollable and unadjustableâ€; invented hybrid resin in-situ polymerization and in situ redox technology, antibacterial particles 200nm ~300nm uniform and stable dispersion, resistant to high temperatures above 500 °C, solves the bottleneck of the "antibacterial resin in the antibacterial component dispersion, poor stability"; overcome the new antibacterial material + fiber composite profile processing technology, so that the amount of antibacterial material added 2~3 times, the production rate is 97%, the spinnability is good, the cost is reduced by 30%, and the bottleneck is solved. “The fiber can be spun poorly, the engineering and market promotion are weakâ€; the discipline cross and the industrial chain integration have been established. From raw material-resin-fiber-fabric-dyeing-product design through-train development and technology integration, expanding the application field and solving the bottleneck of the four "front and rear technology mismatch, technology innovation With a low degree of integration. " Injection Molding Screw,Single Screw And Barrel,Screw Barrel For Extruder,Extruder Screw And Barrel Zhoushan Jinmao Machinery Manufacturing Factory , https://www.jinmao-machinery.com