| Effect of Molecular Structure of Functional Resin on Properties of Damping Rubber Materials |
| Received:June 29, 2021 Revised:June 29, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.02.0097 |
| Key Words: damping rubber material；NR；SBR；functional resin；molecular structure；damping property； loss factor |
| Author Name | Affiliation | E-mail | | CHEN Qiang* | Red Avenue New Materials Group Co.，Ltd | andy.chen@rachem.com | | WANG Guanghui | Red Avenue New Materials Group Co.，Ltd | | | LI Hongwei | Red Avenue New Materials Group Co.，Ltd | | | ZHANG Cheng | Red Avenue New Materials Group Co.，Ltd | |
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| Abstract: |
| The effects of functional resins with different molecular structures on the properties of
damping rubber materials based on natural rubber（NR） and its blend with styrene butadiene rubber（SBR）
were studied，and the methods to improve the damping properties of damping rubber materials were explored.
Adjusting the loss factor（tanδ） curves of damping rubber materials by functional resins was an effective
method to maintain their high elasticity and improve their damping properties. The difference in compatibility
between resins with different molecular structures and rubber had great significance for adjusting the tanδ
curves of damping rubber materials used in different temperature ranges. The test results showed that the
tanδ of damping rubber materials in a specific temperature range could be improved by adjusting the resin
molecular structures，so as to improve the damping properties of damping rubber products. |
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