Rubber Compounding Ingredients Pdf

Compounding it is the science of selecting and combining polymers and additives to obtain physical and chemical properties for a finished products.

Rubber compounding ingredients pdf.

Rubber compounding the concentrated latex is first blended with the various additives as required for different applications. The list of ingredients in phr parts per hundred rubber called rubber compound recipe. Most of the rubber products can also contain reinforcing materials fibers filaments. 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.

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. 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. Butyl rubber iir is a specialty rubber that is used in inner tubes because of its low gas permeability. Sudha p deputy director ridt rubber training institute department of training rubber board kottayam 686 009.

Even natural rubber can have its very good physical traits enhanced by putting in other ingredients in the mixture. Academia edu is a platform for academics to share research papers. It is expected that modifications may be necessary to produce satisfactory commercial products. Dr jakub kadlcak manager material development automotive october 2nd 2016 rubber compoundingformulation of rubber compounds dr jakub kadlcak manager material development automotive.

Ingredients in rubber compound is a large group of components including curing agents accelerators and vulcanization activators antioxidants plasticizers fillers and special additives blowing agents dyes etc. Elastomer is the key ingredient and thus always at the top of the formulation list. There are five 5 major categories of compounding ingredients.