Composite materials containing aluminum foil are widely used, but most of the aluminum foil glass fiber cloth on the market are bonded together by flame retardant adhesive. However, due to the limitation of adhesive strength, the glass fiber layer should not be too thick, otherwise it is easy to peel off. Therefore, the existing aluminum foil glass fiber cloth has the following problems: (1) delamination; ② The strength is poor; ③ The stiffness is not enough.

     The flame retardant aluminum foil glass fiber cloth is mainly composed of aluminum foil, the upper layer of the aluminum foil is provided with glass fiber cotton, and the lower layer of glass fiber cotton is provided with alkali free fine cloth, and the three-layer structure is combined by chain weave composed of high silicon oxygen glass fiber line. The aluminum foil is an aluminum foil with a thickness of 0.1mm and 270g/m2; The glass fiber cotton is a glass fiber cotton with a thickness of 10 mm and 1400g/m2; Alkali free fine cloth is 0.lmm thick, 200g/m2 alkali free fine cloth; The high silicon oxygen glass fiber line is three strands twisted and high temperature resistant 580 ° C. Melting point 1200 ° C high silicon oxygen glass fiber line.

      Flame retardant aluminum foil glass fiber cloth is made of aluminum foil paper, loose structure glass fiber cotton and alkali free fine cloth by using high silicon oxygen glass fiber line. The product with one layer multilayer structure is realized, which ensures the close connection between layers. The selected high silicon oxygen glass fiber line will not be cut through by the hard cutting of aluminum foil metal during the sewing process, and can withstand the baking of up to 1000 degrees of high temperature. Moreover, the three twisted high silicon oxygen glass fiber line can not only ensure the effect of continuous needle and needle skipping during sewing process, but also make the whole product not to be delaminating under high temperature. Secondly, the problem of the small strength difference in diameter and length of glass fiber cotton is solved; Thirdly, because glass fiber cotton is loose and porous, it is easy to cause glass fiber flying wire after simple suture with aluminum foil, and the operator respiratory tract infection will be caused when entering the air. At the same time, the product also lacks certain rigidity. Adding alkali free fine cloth can not only solve the problem of glass fiber flying wire, but also enhance the overall rigidity of the product. In conclusion, the flame retardant aluminum foil glass fiber cloth obtained by the utility model has the advantages of uniform thickness, loose structure and even distribution, high tensile strength in longitude and latitude, not easy to curl, good mechanical properties, good heat preservation, noise elimination, fire prevention and moisture-proof, light overall weight, simple processing and installation, small space occupied and beautiful appearance, The product can be widely used in equipment pipeline, building wall and other fields.