The invention relates to the field of fabric, in particular to
aerospace and national-defense special fabric and a preparing method thereof. The
aerospace and national-defense special fabric comprises a cloth layer. Waterproof
layers are arranged on the two faces of the cloth layer, and a glue layer is arranged on the waterproof layer on one face. The preparing method of the
aerospace and national-defense special fabric includes the steps that the waterproof
layers are formed on the two faces of cloth to enable the fabric to have the good waterproof function; the cloth face is smooth in a press polish mode, and glue leakage is prevented during
coating; then the cloth is coated with glue formed by mixing PU glue and
flame retardants to enable the glue in the cloth to achieve the certain
flame retardant effect. The finally prepared aerospace and national-defense special fabric can bear the high
water pressure, is soft in hand feeling and excellent in fireproof performance and further has the advantages of being ultrahigh in strength, high in modulus, resistant to the high temperature, acid and base and the like; in addition, due to double-layer sealing of the cloth layer, the aerospace and national-defense special fabric can bear the ultrahigh
water pressure which can reach 5,000 MM to 8,000 MM, and waterproof performance is improved.