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International Journal of Advanced Science and Technology Vol.87 (2016) 2.5. Resin Infusion Tube and Tacky Tape One resin infusion tube of 10mm diameter with appropriate length is taken to connect between flange and catch pot. Tacky tape is a sealant tape used to provide continuous seal between bagging film and mould around the perimeter of the mould. They are very pliable and similar to the structure of chewing gum and these have sealing properties on both sides. Most sealant tapes are generally butyl-based materials. 2.7. Flange Flange is placed on the top side of the fabrication setup. The top side of the flange is made with brass and the bottom side is made up of Aluminium. It consists of an infusion tube is connected to flange top on one side and to catch pot of vacuum pump on the other side. It is used to flow the excess resin towards the catch pot. Figure 1. Flange and Flange Clamp 3. Method 3.1. Mould Surface Cleaning Two flat scratch less glass moulds of area 65 X 65 cm2 and thickness 4 cms are taken as the base of fabrication. They were cleaned neatly with a cotton ball, because even existence of single hair on it will cause air leakage. Paste the Tacky tape on four sides of the mould such that the laminate should have sufficient space to fabricate. Now a Mylar sheet of 100 microns is placed on the mould such that it acts as a mould release agent and also obtains mirror finish of specimen (in the absence of Mylar sheet we can just apply any mould release agent like Marbocote 220) for taking out the laminate easily from the mould after drying of laminate completes. 3.2. Cut and Position the Reinforcement From the Table 1 it is clear that specimens of Tensile test (0 deg and 90 deg) and compression test (0 deg or 90 deg) require only linear Glass fiber fabric and shear test specimens need +450 and -450 oriented fabrics. The 0 deg tensile test specimens are fabricated on one mould because it needs only 3 layers of fabric. As we need three specimens we cut three layers of fabric having area of 270 X 70 mm2. Another mould is used to fabricate 90 deg tensile specimens and 0 deg specimens because they need 6 layers of fabric, as we need three specimens we cut three layers of fabric having an area of 300 X 250 mm2 using special fabric scissors. The next day a bevel protractor is used to find 45 deg inclination and cutting was followed maintaining the area of 300 X 100 mm2. Sequence of ± 45 deg orientation is preferred in laminate preparation. 3.3. Resin Preparation EPOFINE 230 and FINE HARD 951 [22] are mixed in the ratio 10: 1 by weight. For example if we take three 270 X 70 mm2 fabric sheets it weighed exactly 136.82 gms i.e. Copyright c 2016 SERSC 41PDF Image | Fabrication of Continuous GFRP Composites using Vacuum Bag
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