Design And Preparation Of 3D Honeycomb Fabrics By Jacquard Technology

The three-dimensional honeycomb fabric is the fabric that simulates the honeycomb structure in the natural world.By using the structure of the honeycomb,the honeycomb structure can meet the requirements of the light quality and the impact resistance in the modern fields.Ordinary honeycomb sandwich composite is made by compounding honeycomb core and soft or hard surface material through resin and then hot rolling.The phenomenon of interlayer cracking is easy to occur,and its integrity is poor.The 3D honeycomb fabric with good overall performance is directly woven into textile technology,which overcomes the disadvantage of interlayer cracking of honeycomb sandwich materials.Therefore,this topic is mainly about the design and weaving technology of 3D honeycomb fabric woven by jacquard looms.In order to successfully produce the desired three-dimensional honeycomb fabric,the following works were done.? According to the basis of plain weave,choose suitable for stitching structure,organization structure design;(2)to determine the loom used in weaving,in order to reduce the influence of the number of fully mechanized frames on the weaving,the complex multi-layer fabric can be weaved by the continuous transformation structure,and the electronic jacquard machine which can be controlled by an independent electronic stitch for each warp is selected.? The warping.The electronic jacquard warp beam used in weaving,before the yarn warping;? The use of corrugated plate figure View 60 CAD system aided design of 3D honeycomb fabric;? According to three-dimensional honeycomb fabric composite curing by VARTM forming process,in order to observe the structure of the final fabric.Through the above work,the three-dimensional honeycomb fabric woven fabric was woven successfully by electronic jacquard technology.According to the actual situation,the concrete design and weaving process of the three-dimensional honeycomb fabric woven fabric were put forward,which provided technical support for the preparation of the three-dimensional honeycomb structure woven fabric.The E-51 resin adhesive system is able to compacted three dimensional honeycomb fabric under room greenhouses.After testing,the final indexes of three-dimensional honeycomb fabric reinforced composites are: flat weave tissue + flat junction three-dimension honeycomb composite honeycomb composite material honeycomb cell element with edge aperture and thickness of 12 mm,4.5cm,cell cell element of flat texture + orthogonal junction honeycomb cell and thickness of 12 mm,5.3cm,orthogonal and orthogonal junction three-dimensional honeycomb composite The cell diameter and thickness of material honeycomb cell are 18 mm and 3.5cm,respectively.