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2.5.1  Glass Fibre



                           Glass fibre is a material that has been in a great demand in today’s world. It

                   can  be  classified  as  general  purposes  (low  cost)  and  special  purpose  (high  grade)

                   reinforcements. Nowadays, glass fibre is widely used due to its competitive price,
                   acceptable strength, good handle ability and easy to produce. In this regard, almost all

                   composite products use general-purpose fibres such as E-glass in the fabrication of

                   table top, dorm, boat deck and hull, canoe, bookshelf, cupboards, garden table and
                   many more of nonstructural applications. For high performance application, E-glass

                   was utilized in the fabrication of pressure vessels and rocket motor cases [16]. The
                   classification and general property of glass fibres can be identified with the designation

                   as shown in Table 2.1.  The detailed properties of A-glass, C-glass, E-glass and S-glass
                   are summarised in Table 2.2.




                   Table 2.1       Letter designation and property of glass fibre [30]

                     Letter designation             Property / Characteristics

                     E, electrical                  Low electrical conductivity


                     S, strength                    High strength

                     C, chemical                    High chemical durability

                     M, modulus                     High stiffness


                     A, alkali                      High alkali or soda lime glass

                     D, dielectric                  Low dielectric constant























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