An example of bio-based epoxy resins:

http://real.mtak.hu/27010/1/EPL_0005550_article1_u.pdf

http://reak.hu/27010/1/EPL_0005550_article1_u.pdf

Soy based resins are also well known:

http://www.sciencedirect.com/science/article/pii/S0014305713001122

Lignin is also intensively studied for such purposes:

http://pubs.acs.org/doi/abs/10.1021/bm0500345

even for carbon fiber production:

https://www.diva-portal.org/smash/get/diva2:513032/FULLTEXT01.pdf

Glycerol based thermosets are also beind developed:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3972072/

the use of natural fibers as reinforcements in composites is too broad to cover.

I hope it helps to sart your own research

There are many examples. More common are epoxy-sisal mat SMCs they give very high stiffness when bonding is right. Use stiffer bio-fibres from local sources.

The potential bio-polymers that you can use vary from Bio-polyester and bio-epoxies to furan resin (100% bio based resin made out of bagasse, see web site of TransFurans Chemicals) , the cashew nut shell based resin. Here are some green thermoset resins you can look at:

Epoxy (bio) : Sicomin GREENPOXY http://www.sicomin.com/products/epoxy-systems/green

Polyester (bio et non-bio) : DSM http://www.dsm.com/corporate/media/informationcenter-news/2013/03/2013-03-14-dsm-presents-beyone-1-styrene-free-cobalt-free-structural-infusion-resin-with-40-percent-bio-content.html

Ashland https://msds.ashland.com/ (Bio = Envirez product line)

Thermoset resin bio :  Furan ( résine bio liquide à base de bagasse) : TransFurans Chemicals http://www.transfurans.be/

Thermoset resin bio :  CSNL ( résine bio liquide  à base de coquilles de noix de cajou) : Cardolite http://www.cardolite.com/?q=composites_nr

Good luck!

Hello.

Thermosetting polymers exhibit higher strength and compatibility with natural fibers compared to thermoplastic polymers. nevertheless, thermoplastic polymers are superior in terms of recycling.

Petro-based thermosetting polymers such as epoxy and unsaturated polyester resins as well as blends of bio-based thermosetting polymers including those synthesized from plant oils such as AESO may be options for thermosetting resins.

However, one point to consider is that: even though bio-based thermosetting polymers are selected they may be nonbiodegradable as biodegradability is an issue of chemical structure rather than the origin.

Best Regards...

 Hi Pramod,

here are couple of more articles.

Regards,

Ali Amiri

Conference Paper Advanced Biocomposites Made from Methacrylated Epoxidized Su...

Article Effect of Chemical Treatment of Flax Fiber and Resin Manipul...