25 - Green flame retardant material from cashew nut shell liquid

Abstract

Fire inhibition is difficult yet necessary task. Various techniques have been used to enhance fire retardancy of materials. Researchers are focusing on flame-retardant additives that can impart these properties to the starting materials. However, the incorporation of several atoms in the polymer backbone proved to be the better option for the enhancement of flame retardancy. Halogenated flame retardants are known to be toxic in nature but over the time due to many modifications their toxicity has been minimized. The nonhalogenated flame retardants have took over the market due to their lower release rate into environment and lower toxicity. Development of new flame retardants from renewable resources has gained great attention among the researchers due to numerous health problems associated with the on-going use of petro-based products. Thus there is an urgent requirement to substitute petro-based flame-retardant materials with those derived from renewable resources because they are environmentally affable and biodegradable. These bio-based materials include polysaccharides, phytic acid, seed oils, and cashew nut shell liquid. Since these resources are obtained from abundant biotic means and are easy to get; hence, they never exhaust. They are biodegradable, nontoxic, and environment friendly. The use of these green flame-retardant coatings is significant to obtain various outcomes with considerable opportunities in polymer and chemical industries.