APPLICATION OF JUTE FIBER WASTE RECYCLE AND CNT FOR BULLETPROOF VEST CLOTHDEWI SULIYANTHINI AND RIZA WIRAWAN*Abstract Jute is a fibrous plant containing 13% more lignin than any other cellulosed plants. The lignin is mainly composed of coniferyl phenylpropane units served as inner layer cover of the plant. Besides its fruit which useful as traditional herb medicine (Rosella), jute plant has also been used as bullet shield by Indonesian freedom fighters during the war in 1940s. Clothing manufacture by adding jute with carbon nano tubes CNT 1% and 2% became novel discovery for making bulletproof vest cloth appropriate to Indonesian National Armed Forces (TNI) SII standard. Different bullet penetrations were resulted from vest bulletproofing test with pistol FN22 of 7mm caliber. Bullets were able to penetrate into layer 11 of the cloth in 5 m distance by 24 sec/min velocity, layer 11-12 in 10 m distance by 26 min/sec velocity, and layer 17 in 25 m distance by 27 sec/m velocity. The fabric produced from jute experiment and 36 layers of CNT processed through CNT coating and reduction weighted only 3 to 3.8 kg. The result pinpointed that bulletproof vest cloth composed by jute and CNT had similar quality with imported bulletproof vest cloth of Kevlar type currently used by TNI which consisted of 3 kg of kevlar and 10kg of layers with bullet penetration varied from layer 11 to 17. This discovery is an application of green ecology applied biology science.
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