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Epoxidation of Waste Rubber/Zeolite Powder as Potential Filler for Epoxy Resin
Abstract:
This study reports the epoxidation of waste rubber/zeolite (WR/Z) powder using performic acid solution and its use as potential filler for epoxy resin. WR/Z powder was produced by mechanical grinding using a bench grinder and was epoxidized in performic acid solution for 0 – 90 min of treatment time under ambient conditions. Degree of epoxidation determined by attenuated total reflectance – Fourier transform infrared (ATR-FTIR) spectroscopy was found to increase up to 40 min treatment time where the highest number of epoxide structures was formed. At longer treatment time (> 40 min), most of the epoxide structures were opened up through hydrolysis forming ether, carbonyl and hydroxyl groups. Flexural tests showed that the flexural modulus of epoxy resin was increased after incorporation of epoxidized WR/Z (EWR/Z) powder. Increased EWR/Z powder loading resulted to decreased maximum flexural stress and more brittle epoxy resin.
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Periodical:
Pages:
64-67
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Online since:
March 2017
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