Introduction of roving fabric (checkerboard) with short cut glass fiber

Checkerboard is a plain fabric of roving, which is an important base material of FRP. The strength of the checkerboard is mainly in the warp and weft direction of the fabric. For occasions requiring high strength in the warp or weft direction, it can also be woven into one-way checkerboard, which can arrange more roving in the warp or weft direction.

The quality requirements of the square grid cloth are as follows: the fabric is uniform, the cloth edge is straight, the cloth surface is flat and mat like, without stains, fluffing, creases, wrinkles, etc.; the warp and weft density, area weight, cloth width and roll length meet the standards; the fabric is wound on a solid paper core, and the winding is neat; the fast and good resin permeability; the dry and wet mechanical strength of the laminated material made of the fabric shall be Meet the requirements.

The characteristics of the composite materials are low interlaminar shear strength, low compressive strength and poor fatigue strength.