"Annual Academic Feast" - Although the 2016 China Textile Academic Annual Conference has come to an end, the topic of its discussion continues to ignite the textile academic circle. With the theme of “Developing New Economy and Cultivating New Momentum”, this year's annual meeting combines industry development trends and research hotspots, especially setting up fiber materials, modern textile technology forums, technical textiles, “phase change thermostat technology” and “plant dye technology”. "National development and application of bio-based synthetic fibers, 5 sub-meeting venues, domestic and foreign experts and scholars around high-tech fiber materials, advanced textile technology and product development technology, high-performance industrial textiles , energy-saving emission reduction and resource recycling technology, intelligence In-depth exchanges on hot topics such as textiles, internet + textiles.

Development trend of knitting technology at home and abroad

The latest technology, typical products and cutting-edge applications of the knitting industry at home and abroad are mainly concentrated in the following areas: high-precision knitting machinery featuring efficient production, high-quality production and fine jacquard; traditional weaving and Internet of Things, cloud computing, Combining technologies such as big data and the Internet, the knitting production intelligent technology that integrates informatization and industrialization; the garment comfort technology that improves the comfort and functionality of the garment, effectively reduces the processing of garments, and realizes the customized and rapid production of knitted garments. Using high-performance or special-fiber materials, weaving three-dimensional knitting technology with three-dimensional knit structure and knitting smart wear technology represented by flexible sensing and knitting circuits by warp knitting , weft knitting or horizontal knitting. The knitting industry should seize the new opportunities for development, quickly integrate into the "Internet +" action plan, accelerate the promotion and application of intelligent technology research and industrialization of knitting equipment, promote the transformation and upgrading of the knitting production management model, and establish a sustainable development model of green and low carbon. .

Development of multifunctional graphene fiber

Graphene fiber is a new type of carbon-based fiber assembled from graphene alkenes. It has high flexibility, high electrical conductivity, high thermal conductivity and low density. It is used in high performance and multifunctional composite materials and flexible wearable devices. The application prospect is broad. The graphene oxide liquid crystal is used as a spinning raw material, and a continuous fiber is prepared by a conventional wet spinning process, and the graphene fiber is obtained by reduction. Through high temperature treatment, the defects of graphene can be repaired to obtain high-performance fibers with a strength of 2 GPa and a conductivity of 8×105 s/m. It can also be compounded with a polymer or the like to obtain a graphene-based shell-shell composite fiber.

It takes time for large-scale application of wearable technology

Wearable technology, also known as smart clothing or electronic textiles, is able to respond and adjust to changes in the external environment, and is receiving increasing attention among manufacturers and consumers. Some experts even predict that smart clothing will appeal to the public than the smart phone. Due to the long-term and close contact between the clothing and the human body, wearable technology seems to have an unimaginable huge market and unstoppable development potential. Through analysis and research, it is believed that wearable technology should (continue) select some areas that have special requirements for clothing performance, such as military, athletes, medical industry and other personnel working under extreme conditions such as fire fighting and polar exploration. It takes time for wearable technology to get a large-scale application or even become a new generation of clothing.

Macro-preparation of solution jet nanofiber and its application

The solution jet spinning technology is a novel nanofiber preparation method based on the high-speed air drafting principle, which has many advantages. Studies have shown that compared with electrospun nanofibers, solution spray-spun nanofibers have obvious three-dimensional crimping properties, exhibit good gas permeability, and exhibit high-efficiency and low-resistance properties as filter materials; The alkane is introduced into the PA6 nanofiber with a surface contact angle higher than 160°, which can be used as a protective material. The nanogel fiber is obtained by blending chitosan with PVA, which has good absorption and antibacterial properties, and is a good wound medical device. The dressing; the solution jet spinning nanofibers into the proton exchange membrane, by virtue of its three-dimensional crimp structure and ultra-high pore volume, is conducive to construct a transmembrane proton transport channel and break the proton "insulation layer" on the membrane surface, which can greatly improve the proton transport performance. It is expected to develop a high-performance proton exchange membrane; a solution spray-spun nanofiber affinity membrane prepared by grafting arginine onto chitosan and blended with PLA, has good containment and retention properties, and is a good adsorbent material.

Study on electrode materials of electrospun flexible dye-sensitized solar cells

In order to research and develop Flexible Dye-Sensitized Solar Cells (FDSSCs), TiO2 nanorods were first prepared based on electrospinning technology, which were obtained on flexible plastic substrates by means of electrostatic spraying and hot pressing. TiO2 nanorods photo-positive film. Optimize the photo-yang film by means of doping, compounding and coating to improve battery efficiency. Subsequently, the use of more advantageous dendritic TiO2 nanotubes as a scattering layer further improves cell efficiency, and the efficiency of the flexible dye-sensitized solar cell has been increased to 4.7%. At the same time, the metal oxide (TiO2, etc.)/C composite nanofiber membrane was prepared by electrospinning, which significantly improved the flexibility of the nanofiber membrane. Among them, especially the TiO2/C composite nanofiber membrane exhibits excellent flexibility and electrochemical performance, and it is used as a new type of FDSSCs without a counter electrode substrate. These FDSSCs can be combined with textiles to provide important support for the research and development of intelligent textiles based on FDSSCs.

From zero-dimensional to one-dimensional smart clothing

How to build intelligence is the core topic of current research on smart fiber materials. The development of micro-nano technology has created a variety of colorful particles, which can be used to solve the problem of combination of smart matter and fiber (such as temperature control or discoloration containing microcapsules). Fiber) or directly build smart features (such as self-cleaning fabric surfaces). As a microscopic unit, microscopic particles also have the ability to construct various structures and integrate various functions. The combination with fiber materials continuously creates new intelligent fiber materials, and cutting-edge smart materials such as invisible, wearable electronics and biotechnology. The field has unique application advantages, and the intelligence realized by the combination of micro-nano technology and fiber materials will continue to promote the development of smart fiber materials.

Performance and Research of Three-Dimensional Spacer Reinforced Foam Composites

The three-dimensional spacer fabric is a new type of sandwich structure, which is called a sandwich structure in foreign countries. The structure is made of high-performance fiber, and a special weaving technique is used to make a three-dimensional spacer fabric on a special three-dimensional weaving device; the fabric and thermosetting property are used. Resin composite molding can produce high-performance three-dimensional spacer fabric composite materials with excellent properties such as light weight, high strength, high modulus, sound insulation and heat preservation. The project team used Baodelun as the main raw material to prepare hollow spacer fabric, and composited with flame retardant epoxy resin to obtain three-dimensional spacer fabric skeleton, which was foamed and filled with melamine resin to prepare high strength, flame retardant, heat insulation and sound insulation. Sound absorbing maglev body for interior siding and flooring composites. The composite material can be widely used in aviation, aerospace, oil and gas transportation and other fields, and has been successfully used in high-speed rail car bodies (ceilings, luggage compartments, floors, wall panels, etc.), building materials, wind blades, ships and the like.

Vertical laying technology and its application

Compared with cross-lapping technology, the products produced by vertical laying technology have excellent elasticity and bulkiness, and are applied in automobiles, mattresses and furniture, underwear, filter materials, etc., and are a new environmental protection alternative to foamed polyurethane materials. material. Studies have shown that: using vertical laying technology, high-elastic body fibers and binder fibers can significantly improve the elasticity and durability of the product. The new vertical laying method is faster than the boring vertical laying, and the structure of the product is easier to control. , the performance is better. In view of the problems of delamination and poor elastic recovery of the fiber layer in the prior art, the researchers proposed a technical solution for the composite fiber web lamination and the temperature and humidity drying and finishing, and the effect is good.