Application of Warp Knitted Composites in Different Fields

Release time:

2022-11-21

Warp-knitted reinforced composites, as a class of key materials with excellent performance, have been applied more and more significantly in the field of industrial textiles, and have been widely used in aerospace, sports and leisure, energy and environmental protection, biomedical and other fields.

Aerospace

With the development of human spacecraft to be larger, stronger and farther, there is an urgent need for new high-performance materials. Warp-knitted grid structure is widely used in the field of aerospace, and it is the key material for the development of semi-rigid solar panels and large-scale spaceborne expandable space antennas. In order to make the space station larger and stay longer, the space station needs glass fiber warp knitted grid material as the key support material for solar cells. Warp knitted metal grid reflector material, as a key material for large deployable antennas, helps satellites fly farther. This kind of grid material products have been used in "Tiangong-1", "Tiangong-2" and "Tianzhou-1" spacecraft. Metal mesh products have been successfully applied on many high-performance satellites such as Beidou navigation, Tiantong-1, Chang'e -4 and "Magpie Bridge" in China, which has greatly improved the technology of China's space station and satellite communication capabilities.

Wind turbine blade material

With the in-depth development of the wind power industry, the requirements for blades are getting longer and longer, and the market demand for lightweight, low-cost and high-efficiency preparation of application materials is proposed. Composite materials are the best choice to meet this demand. Multi-axial warp knitted reinforced fabrics have the advantages of high strength modulus, quasi-isotropy, good shear resistance, good delamination resistance, high efficiency and low cost, and have been widely used in wind power blades. At present, the domestic has realized the glass fiber, carbon fiber/glass fiber, carbon fiber high-speed multi-axial warp knitting processing technology, and broke through the carbon fiber multi-axial warp knitting equipment technology and industrialization, to meet the large tow carbon fiber fiber expansion, multi-axial layer full-specification weaving technology, to achieve the carbon fiber multi-axial fabric full-specification, low-cost weaving and composite material application.

Flexible inflatable and deployable material

Large and wide spacing three-dimensional fabric reinforced flexible composite material is a new type of inflatable structural material, which is different from traditional inflatable materials. After inflation, the internal interval drawing can realize various shapes of plasticity, and endows the material with excellent structural rigidity and modulus, which expands the application scenarios of inflatable materials and plays a great role in military, aerospace, construction, agriculture, forestry, biological medicine and other aspects, it can be applied to high-grade sports equipment, inflatable car seat cushion, shelter hospital isolation cabin, fire rescue cushion, light high suspension pontoon, aircraft rescue slide, aircraft parking garage, military hovercraft, aircraft, inflatable structure space capsule and other products.

Biomedical

Biomedical textile is a new field formed by the combination of textile technology and medical science. With the development of life medicine technology, there is a large demand for new textile structural materials. Knitted structure artificial blood vessels are mostly prepared by warp knitting method, using medical-grade polyester knitting, and then using medical polytetrafluoroethylene film, the composite artificial blood vessel structure is stable, good compliance, is the main product of the current market. The tissue structure of hernia repair patch is mainly based on warp knitted mesh structure, which has the characteristics of large aperture and light weight. Artificial ligament has excellent repair effect on the treatment of tendon ligament rupture. At present, the medical artificial ligament adopts full-width weft lining and chain warp velvet to change the warp knitting tissue structure, which has low vertical and horizontal extension, high tensile strength and satisfactory fatigue strength.

For more information, please pay attention to the article "Research Progress of Warp Knitted Reinforced Composites" in the 5th issue of 2022.

(source: textile guide official micro)

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