Ionmer.I.The Effect of Woven Glass Mat Reinforcement on Tensile Properties

摘要

An investigation was conducted on ionomer polymer. The ionomer pellets were molded into a thin sheet before fabrication into composites. The reinforcing agent used was woven glass mat. Before fabrication, the woven glass mat was treated with the following: 1. silane coupling agent for 5 mm and dried at room temperature; 2. silane coupling agent for 5 mm and dried in the oven at 1100C for 15 mm; 3. Ultraviolet radiation for 5 mm; and 4. silane (oven dried + ultraviolet). The composites were fabricated at various pressure, time, and temperature. An ideal processing condition was established, i.e., pressure = 5 MPa, temperature = 1800C, and the impregnation time = 30 mm. The void contents of the composites were estimated using the ignition method and the tensile properties were measured. The results revealed that good impregnation of the matrix ionomer into the reinforcing agent can be achieved at 1800C. This was confirmed by low void content as compared with other test temperatures. Further clarification was through the tensile properties, which were higher than those at lower temperatures (120 and 1500C). The effect of fiber orientation was checked, and both 0 and 900 had identical strengths and moduli irrespective of the various fiber treatments. Apart from the void contents, the degree of impregnation was also checked based on the tensile strengths in 45, 25, and 600 fiber orientations.