| Study on Formulation of Rubber Bladder Compounds for Air Spring |
| Received:March 22, 2022 Revised:March 22, 2022 |
| DOI：10.12136/j.issn.1000-890X.2023.10.0803 |
| Key Words: air spring；rubber bladder；CR；NR；fatigue resistance |
| Author Name | Affiliation | E-mail | | WANG Jing | Tsinghua University | wangjing9917@126. com | | KANG Zhenran | E-Rubber Technology（Beijing） Co.，Ltd | | | WANG Tao | E-Rubber Technology（Beijing） Co.，Ltd | | | WEI Yintao | Tsinghua University | |
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| Abstract: |
| The formulation of the rubber bladder compounds for automotive air springs was studied.The results showed that compared with the natural rubber（NR）/chloroprene rubber（CR） blend，the tensile stress at 300% and tensile strength of the CR compound increased，the heat aging resistance and fatigue resistance were improved. In the trial production of the rubber bladder for air spring，the NR/CR blend was prepared by the traditional calendering process，the expected wall thickness of the rubber bladder produced was about 2 mm，while CR compound utilized a layer core injection process，and the expected wall thickness of the rubber bladder produced was about 1.6 mm. |
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