Rubber 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.

Rubber compounding ingredients.

Depending on the. The list of ingredients in phr parts per hundred rubber called rubber compound recipe. Starting point rubber compounding formulations. Operating recommendations for mechanical rubber goods nov 9 2016 blog.

An antidegradant is a compounding ingredient added into a rubber compound to retard the deterioration caused by oxidation ozone light or combination of these. 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. Even natural rubber can have its very good physical traits enhanced by putting in other ingredients in the mixture. The most common compounding ingredients added into the rubber are vulcanizing agents vulcanization accelerators activators for the accelerators fillers processing aids softeners antidegradants and other miscellaneous ingredients for specific purposes.

Activators accelerators ingredients and fillers inorganic compounds mainly metal oxides zinc oxide hydrated lime organic acids normally in combination with metal oxides stearic oleic stearic oleic alkaline substances will increase ph of rubber usually increases cure. The list of ingredients in phr parts per hundred. Hence antioxidants are added to protect the rubber against oxygen attack while antiozonants are added to protect the rubber against ozone attack. Rubber compounding ingredients ingredients in rubber compound.

The objectives of rubber compounding may be essentially defined as providing optimised performance and processability generally at minimum cost by the incorporation of non rubber ingredients. These are starting point rubber compounding formulations for providing guide lines only and should be confirmed by laboratory trials.