There are five 5 major categories of compounding ingredients.
Rubber compounding ingredients pdf.
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Elastomer is the key ingredient and thus always at the top of the formulation list.
Even natural rubber can have its very good physical traits enhanced by putting in other ingredients in the mixture.
The list of ingredients in phr parts per hundred rubber called rubber compound recipe.
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.
Sudha p deputy director ridt rubber training institute department of training rubber board kottayam 686 009.
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.
Rubber compounding the concentrated latex is first blended with the various additives as required for different applications.
Butyl rubber iir is a specialty rubber that is used in inner tubes because of its low gas permeability.
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.
These are starting point rubber compounding formulations for providing guide lines only and should be confirmed by laboratory trials.
Ingredients tread carcass light truck tractor rear otr nr rss 70 100 peptizer 0 07 0 1 sbr 1502.
It is expected that modifications may be necessary to produce satisfactory commercial products.
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.
Dr jakub kadlcak manager material development automotive october 2nd 2016 rubber compoundingformulation of rubber compounds dr jakub kadlcak manager material development automotive.