September 2025
In the September issue of Rubber World we cover the following topics.
Basics of short fiber reinforcement in elastomer and thermoplastic compounds
Short fiber reinforcement has been used in elastomeric and thermoplastic compounds to enhance properties, yet the underlying science is often misunderstood; the authors provide an overview of the science behind fibers in various compounds, comparing the individual fiber material types.
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Lignin-soy based flexible polyurethane foam for automotive applications
This study focuses on partially replacing petroleum-based polyol with a novel synthesized lignin-based polyol and soy-polyol in the formulation of flexible polyurethane foams, with the goal being to enhance soy-polyol utilization, ultimately increasing the bio-based carbon content of the foams without compromising thermomechanical properties.
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Tertiary amine-free and tin-free catalysts for lower density polyurethanes
Ways in which various polyurethane products can be produced without using tertiary amine or tin-based catalysts are demonstrated by the authors; the catalysts provide foam amines and resulting product density similar to that currently available using combinations of tertiary amines and tin-based catalysts.
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How recycled rubber opens the door to safe, accessible all-season play
Recycled rubber is used in everything from community parks, playgrounds and playing fields to infrastructure and flooring. It is cost-effective, diverts millions of tires a year from ending up in landfills, and supports thousands of jobs nationwide. In this interview, Rubber World spoke with Scott Gerber, program director of The Better Play Initiative, about recycled rubber, its use in areas such as community parks and playing fields, and the science behind its safety.
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