Yield and Tensile Strength of Vinyl Ester Composites Cured by Microwaves

Abstract

In the previous investigation, it was found that the difference in Young's modulus, ultimate tensile strength and yield strength between microwave cured vinyl ester particulate composites and those cured under ambient conditions is minimal provided low power microwaves are combined with short duration of exposure. The results also show that microwave cured composite samples will result in smaller shrinkage with the similar values of mechanical properties mentioned above than those samples cured under ambient conditions [1]. The reduction in the shrinkage of the resins by microwaves will enable the manufacture of large vinyl ester composite items possible. This research with more data collected is to confirm the earlier results. The values of mechanical properties considered in the two studies are very near and reliable.

Processing of Composites Using Variable and Fixed Frequency Microwave Facilities

“…A Shimadzu tensile testing machine was used for the lap shear test. A load range of 2000 N and a load rate of 600 N per minute were selected for the test [13][14][15][16]. Figure 7 shows the lap shear strength of PS/GF (33%) joined by a fixed frequency microwave facility in a slotted rectangular waveguide.…”

Contrasts on Fracture Toughness and Flexural Strength of Varying Percentages of SLG-reinforced Phenolic Composites

“…SLG is cheap and commonly used in a variety of manufacturing applications because of their unique properties, which include extreme heat resistance and high compressive strength. Many previous studies had reported the improvement in the mechanical properties of vinyl ester resin reinforced with SLG [4,[5][6][7][8][9][10].…”