English Abstract

Material and Product Development for Carbon Neutrality
| Rubber Product Weight Reduction Technology |

Toyoda Gosei Co., Ltd., Kitajimacho, Inazawa, Aichi
Nippon Gomu Kyokaishi,(2022),95(11),313-318 General Review in Japanese

In recent years, the promotion of carbon neutrality has been required all over the world. We are implementing various initiatives that will lead to the reduction of CO2 emissions. Weight reduction of automobile parts is also one of the efforts to reduce CO2. Not only improving fuel efficiency but also reducing the amount of materials used, weight reduction leads to reduction of CO2 emissions.
This paper introduces an example of weight reduction by developing a high-stiffness rubber material for an air cleaner hose. The important functions required for an air cleaner hose are negative pressure resistance, assembly performance, and sealing performance. In order to reduce the weight while maintaining these functions, it was necessary to develop a highly stiffness material with low temperature dependence of stiffness. In the development, we developed a new high-stiffness rubber material with low temperature dependence by using the rubber elasticity theory.

Keywords: Carbon Neutrality, Weight Reduction, High-stiffness, Low Temperature Dependency, Rubber Elasticity, Air Cleaner Hose