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This article discusses the process of projectile impact resistance on polyester fiberglass composite panel with ash rice husk as filler. The composite panel consists of polyester resin (unsaturated polyester BQTN 157) and reinforced woven roving S-glass with 3, 5, 7, and 9 wt% rice husk ash variations. Then it was observed the decrease of panel performance into projectile ballistic impact. The structure characterizations of materials were carried out by Fourier transform infrared (FTIR) spectroscopy and X-ray diffractometer (XRD). The impact tests were carried out with calibre ammunition of 9 mm bullet FN gun. The result showed rice husk additions decreased the panel density. There is a chemical interaction influence between the filler and polyester, the composite becomes more crystalline. Then it also showed significant influence of rice husk ash on the strength of composite panels against the high impact of a bullet.
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Koto et al. (2019) studied this question.
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