A Self Sealing Fiber Reinforced Composite

plastics engineering

ABSTRACT A Self-Sealing Fiber-Reinforced Composite are artificial or synthetically created substance that have constructed in capability to robotically restore harm to themselves without any exterior analysis of the bassle or human intervention. The requirement of self-healing polymers are balance and shelf life, deliverability, reactivity, shrinkage, physical and mechanical, thermal balance and dispersion. A self-sealing fiber reinforced composite is made by hand lay up technique. In this work carbon fiber is used as a reinforcement, epoxy is used as a healing agent, thermoset phenol formaldehyde is used as a curing agent agent and thermoplastic polyurethane is used as a self-curing agent. Five composite sheet are preapared in this technique. A single specimemen is made with the help of A4 size paper. These sheet are compressed with the help of compression moulding machine at a temperature 180oc, pressure 300 kg/cm2. Breathing time also be given in compression moulding machine so that the proper curing is to be done. Five second is the breathing time and this breathing is done three to four times for a single sheet. The time required for compression is four hours. The sheet are cut by the axe saw and the finishing is done with the help of contour cutter. The specimen obtained from composite material having different ratio of thermoplastic and thermoset resin content were tested to determine tensile strength, flexural strength, impact strength, differential scanning calorimeter.

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