Free sharing of the latest nanotechnology applications in nonwoven materials in 2017

Abstract: With the advent of the technological economy era and the internationalization of the market, the competition for technological innovation among enterprises has become increasingly fierce. The application of nanofiber materials has moved from concept research and development, laboratory to application market, and gradually from high-end core material application to medical and health, high-efficiency Protection, fine filtration, automobile industry, agriculture and other popular and generalized fields have shifted, and gradually replaced traditional applied product materials. This article describes the application of my country’s nanofiber technology to non-woven materials, which is an important upgrade in the structural adjustment of the textile industry: a detailed introduction of nanofiber as an ancestral grave, composite non-manufacturing technology, as well as the transformation and upgrading of the textile industry, increasing the technological content and products Added value. 1. Introduction After more than 10 years of development, nanofiber materials and technologies have moved from concept research and development, laboratories to application markets, from the application of high-end core materials to the popularization and generalization of medical and health, high-efficiency protection, fine filtration, automobile industry, agriculture, etc. The field has shifted and gradually replaced traditional application product materials. The application of my country's nanofiber technology to non-woven materials is an important upgrade in the structural adjustment of the textile industry. The birth of nanofiber multi-component and composite non-woven technology provides an important opportunity for the transformation and upgrading of my country's textile industry, the improvement of technological content and the added value of products. 2. The development status of nanofiber nonwoven materials The development of nanotechnology has accelerated the research of nanofiber technology. In 2004, the Czech company Elmarco started the research and development of electrospinning nanofiber experimental equipment. Two years later, it completed the industrial operation of the world's first electrospinning nanofiber production line, NanospideTM, and put it on the market. At the same time, a variety of nanofiber forming technologies have also achieved commercial operation. Teijin Corporation of Japan adopts sea-island type (INS) melt-blown composite spinning and uses 300 islands of components to produce polyester nanofilaments with a diameter of 300-500nm, which can be used for sportswear, jackets, rainwear and windbreaker fabrics. American Hills (Hill) company adopts meltblown process, equipped with 100 holes/inch module, worthy of nanofiber network with an average diameter of only 250nm: the diameter of nanofibers spun by fibrillation process is in the range of 50-100nm. 3. The development of nanofiber nonwoven materials. The functional modification technology of integrated fiber polymer materials, fiber super technology, multi-component melt blown composite technology, and finishing technology will have rapid hydrophilicity, antibacterial deodorization, and super softness. Multi-layer composite assembly of meltblown nonwoven layers with different functions such as, antistatic, flame retardant, etc., to obtain multifunctional and multicomponent meltblown nonwoven composites that meet different requirements for use, and make their fiber polymer materials mechanical properties and functionality raised dramatically. Suzhou Baolijie Nano Material Technology Co., Ltd., Suzhou Nano Research Institute of Chinese Academy of Sciences and Suzhou University jointly developed functional nano-multicomponent melt-blown nonwoven composite materials, which changed the status quo of my country's textile industry and laid the foundation for my country's nonwoven materials to move towards high-end . 4. Application of nanofiber nonwoven materials In order to adapt to the different uses of nano nonwoven materials, the nonwoven materials are given different functions such as hydrophilic, antibacterial, flame retardant, super soft, etc., and improve the protection performance and comfort of use. The main research direction of woven material preparation technology. Functional technology mainly includes the modification of non-woven raw materials and the finishing technology of non-woven materials, and composite technology is an advanced technology that gives nano non-woven materials multi-functionality. Technical materials are at the middle end of the medical and health and protective equipment industry chain. The upstream products are fiber polymer raw materials, and the downstream products are medical and sanitary products (bandages, tourniquets, diapers, women’s sanitary napkins, etc.), protective products (masks, protective clothing, etc.) , Fine filtration products (filtration membranes for water, air, and oil). In the development and actual use of downstream products, it is often hoped that a nonwoven material has multiple functions at the same time, so as to adapt to complex and changeable use requirements.