Optimization of Accelerator Mixing Ratio for EPDM Rubber Grommet to Improve Mountability Using Mixture Design

Applied Sciences

YongTae Kim¹  EuySik Jeon²  YoungShin Kim³ 

[1] Company-affiliated R&D center/New Business Manager, DAESUNG HI-TECH Co., Ltd., Cheonan 31025, Korea;Industrial Technology Research Institute, Kongju National University, Kongju 31080, Korea;

关键词: EPDM;    accelerator mixing ratio;    mixture design;    grommet;    mountability;   

DOI  :  10.3390/app9132640

来源: DOAJ

【 摘 要 】

A grommet, made of ethylene propylene diene methylene (EPDM) rubber, is an integral part used for fixing and protecting the wire inserted from the outside to the inside of vehicles. Rubber compounds exhibit various mechanical properties and vulcanization characteristics depending on the accelerator mixing ratio. These mechanical properties affect the insertion and detachment forces when the grommet is manufactured and fixed to the vehicle body. In this study, we experimentally analyzed the changes in the properties of EPDM rubber depending on the vulcanization accelerator to improve the mounting performance of the grommet, and subsequently derived the optimum accelerator mixing ratio. We implemented a mixture design strategy to derive the optimum mixing ratio for obtaining the desired mechanical properties and vulcanization characteristics. The insertion and separation forces of the existing grommet were compared with those of the grommet fabricated using the derived mixing ratio and we found that the mounting performance was improved compared to the existing grommet.

【 授权许可】

Unknown