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Polymer Process Aid for Butyl Rubber with Recycled Content
Polymer Process Aid for Butyl Rubber with Recycled Content
Authors
Hari Chandra and Chandrasekaran R. Pillai.
Quantum Polymer Composites, LLC. Cleveland,
Further development work on Rubber Process Aid with Recycled Content on which a paper was presented at the 176th ACS Technical Meeting in Pittsburg, PA in 2009 produced material with some unexpected and desirable properties. The new product we have developed is low viscosity, low molecular weight blends of virgin polymers and recycled buytl rubber compositions. When added in small doses of between 5 and 20 percent replacing part polymer base in the formulations, they help to reduce shrinkage of sheets and enhances some of the physical properties, in particular resistance to crack growth on flexing. The product is found to be useful in products requiring high resistance flexing such as curing bladders, inner liners. Being a polymer, they cure with the rest of the matrix. Additional attributes are that they confer dimensional stability to mixes, and reduce shrinkage in calendering and molding processes.
They are also useful as impact modifiers in nylon and base for preparation of Thermoplastic Rubbers. This paper would illustrate these attributes.