Browse Publications Technical Papers 2009-01-2869
2009-10-06

Development of Flax oil-based Biopolymer for Biocomposites 2009-01-2869

Flax oil is the main goal of growing flaxseed. Flax oil has been used for nutrition, food, paint binder, putty, and wood finish. However, synthetic resin from flax oil has not been developed. In this paper we will develop a biopolymer derived from flax oil and the goal is to use it as a resin to produce a viable, biodegradable composite using natural fiber as reinforcement. First, the functionalization of the triglyceride group of the flax oil fatty acids with polymerizable chemical groups was studied. The triglyceride molecule of flax oil was epoxidized by the reaction of double bonds in the fatty acid with a peroxy acid (formic acid) to get epoxidized oil; the epoxidized oil was then reacted with ethylenically substituted carboxylic acid (acrylic acid) to form acrylated epoxidized flax oil. Polymer resins were prepared from flax oil by blending acrylated epoxidized flax oil with styrene and a free radical initiator. The characterization of developed polymer and the intermediates during processing were investigated. This technology will add value to flax oil by converting it to a bio-based resin for industrial use, which will offer significant opportunities for new, improved materials from renewable resources.

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