|
| Damping Mechanical Properties of Mixed Damping Rubber of 201 Phenolic Resin/AO-80 Hindered Phenol/BIIR |
| Received:June 25, 2018 Revised:September 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.09.021 |
| KeyWord:BIIR phenolic resin AO-80 hindered phenol loss factor high frequency and low temperature |
| Author | Institution |
| ZHAO Miao-miao |
AVIC Aircraft Strength Research Institute, Xi'an , China |
| DUAN Yu-xing |
AVIC Aircraft Strength Research Institute, Xi'an , China |
| WANG Jian-qiang |
AVIC Aircraft Strength Research Institute, Xi'an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To improve the damping property of BIIR rubber. Methods 201 phenolic resin and AO-80 hindered phenol were added to BIIR to prepare AO-80/phenolic resin/BIIR mixed rubber. Damping properties of mixed rubber were studied by damping mechanical analysis (DMA). Results The dosage increase of 201 phenolic vulcanizing agent made the optimum operating temperature of material increase. When 201 resin was added to 10 parts, the largest loss factor of mixed rubber was 0.81. In AO-80/201/BIIR mixed rubber, adding of AO-80 made the optimum operating temperature of material increase and AO-80/201/BIIR show a double peak characteristics. When 30 parts of AO-80 were added to the mixed rubber, the temperature range of loss factor (tanδ>0.3) was 40 ℃ to 60 ℃. The damping property at different temperature and different frequencies were also studied. The results showed that the increase of using frequency made the optimum operating temperature of material increase. The effect of the increase of temperature was the same as that of the decrease of frequencies. The newly developed materials were evaluated by the method of the constrained layer. The newly developed materials were better than foreign advanced material in term of residual peak number, damping coefficient and benefit peak height. Conclusion AO-80/phenolic resin/BIIR blend damping rubber material has better vibration and noise reduction effect. |
| Close |