BULLET-PROOF MATERIAL AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: SIM, JAE HYUNG, LEE, CHANG BAE, KIM, JUNG HA, RHO, KYEONG HWAN
• Format: Patent
• Language: English; Korean
• Published: 08.07.2015
• Subjects: ARMOUR; ARMOURED OR ARMED VEHICLES; ARMOURED TURRETS; BLASTING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; HEATING; LAUNDERING; LIGHTING; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL; MECHANICAL ENGINEERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WEAPONS

The present invention relates to a bulletproof material that a polyimide resin is impregnated in a high intensity fiber fabric. The bulletproof material comprises: (i) a process of impregnating a polyamic acid in the high intensity fiber fabric; and (ii) a process of curing the high intensity fiber fabric where the polyamic acid is impregnated, and polymerizing the polyamic acid into polyimide. According to the present invention, the bulletproof material has an improved impact dispersion performance when impacted due to an amorphous property of the polyimide resin which is impregnated in the high intensity fiber fabric, and is lightened rather than a bulletproof material laminating a resin film to an existing high intensity fiber fabric as a gap of the high intensity fiber fabric is filled by the polyimide. The bulletproof material enables to prevent a risk which may bring secondary damage to a wearer as the existing laminated resin film is destroyed when impacted, and to improve a bulletproof ability. 본 발명은 고강도 섬유 직물에 폴리이미드 수지가 함침된 방탄소재에 관한 것이다. 상기 방탄소재는 (ⅰ) 고강도 섬유 직물 내에 폴리아믹산을 함침하는 공정; 및 (ⅱ) 폴리아믹산이 함침된 고강도 섬유 직물을 큐어링 처리하여 상기 폴리아믹산을 폴리이미드로 중합하는 공정;을 거쳐 제조된다. 본 발명에 따른 방탄소재는 고강도 섬유 직물 내에 함침된 폴리이미드 수지의 무정형(Amorphous)한 성질로 인해 착탄시 충격 분산 성능이 크게 향상되고, 고강도 섬유 직물의 공극을 폴리이미드가 충진함으로서 종래 고강도 섬유 직물에 수지 필름을 라미네미팅한 방탄소재보다 경량화됨과 동시에 종래 라미네이팅된 수지 필름이 착탄시 파괴되어 착용자에게 2차적인 피해를 입힐 수 있는 위험성을 방지하게 되고 방탄성도 향상된다.