Rubber Compounding Ingredients Pdf

Butadiene acrylonitrile rubber nbr distinguishes itself from nr and sbr in its good resistance against non polar substances like gasoline diesel fuel oils and fats good ageing resistance and good resistance to chemicals.

Rubber compounding ingredients pdf.

Elastomer is the key ingredient and thus always at the top of the formulation list. These are starting point rubber compounding formulations for providing guide lines only and should be confirmed by laboratory trials. Sudha p deputy director ridt rubber training institute department of training rubber board kottayam 686 009. Dr jakub kadlcak manager material development automotive october 2nd 2016 rubber compoundingformulation of rubber compounds dr jakub kadlcak manager material development automotive.

Compound it is a homogenous mixture of ingredients used in a particular product manufacture such that the properties of most of the ingredients are unchanged in the final product whereby. Butyl rubber iir is a specialty rubber that is used in inner tubes because of its low gas permeability. Even natural rubber can have its very good physical traits enhanced by putting in other ingredients in the mixture. There are five 5 major categories of compounding ingredients.

Not only can we improve an elastomer s physical strengths by compounding other ingredients into the mixture of elastomer and sulfur but also we can improve other characteristics and even create some that do not naturally occur. It is expected that modifications may be necessary to produce satisfactory commercial products. Rubber compounding the concentrated latex is first blended with the various additives as required for different applications. Compounding it is the science of selecting and combining polymers and additives to obtain physical and chemical properties for a finished products.

The list of ingredients in phr parts per hundred rubber called rubber compound recipe. They are elastomer as a major component curatives for crosslink formation antidegradants for protection fillers for reinforcement and cost dilution and processing additives for ease of processing. Most of the rubber products can also contain reinforcing materials fibers filaments.