Thermal degradation and pyrolysis study of brominated butyl rubber‐based damping material

2019 ◽  
Vol 31 (2) ◽  
pp. 204-213 ◽  
Author(s):  
Hong‐Bing Chen ◽  
Qiu‐Si Peng ◽  
Yuan Jian ◽  
Pu‐Cheng Wang ◽  
Feng‐Shun Zhang
RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 37148-37157 ◽  
Author(s):  
Mengnan Ruan ◽  
Dan Yang ◽  
Wenli Guo ◽  
Shuo Huang ◽  
Yibo Wu ◽  
...  

Barium titanate (BT) particles, BT-KH570 particles, and polar plasticizer tri-n-butyl phosphate (TBP) were added into BIIR matrix to form a dielectric elastomer composite, which had a high dielectric constant, good mechanical properties, and large actuated strain.


2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Min Zhao ◽  
Xianhui Li ◽  
Di Zhang ◽  
Longshan Zhao

Objective. To establish a method for extraction and determination of antioxidant 264 (2,6-di-tert-butyl-4-methylphenol) in the brominated butyl rubber stopper for injection and migration study in recombinant potent antitumor and antivirus protein injection (Novaferon). Methods. Dichloromethane-ethanol was adopted as the extraction solvent during the process of reflux extraction of antioxidant 264 in the brominated butyl rubber stopper. High-performance liquid chromatography (HPLC) was used for the determination of the migration of antioxidant 264 to Novaferon. The mobile phase consisted of acetonitrile-water (80 : 20, v/v). The flow rate was 1.5 mL/min. The detection wavelength was 280 nm. Results. The linearity range was from 4.003 to 200.150 μg/mL (r2 = 0.99996), and the average recovery of antioxidant 264 was 97.8%. The applicability of the methodology was good, which can be used for the determination of antioxidant 264. The results indicated that antioxidant 264 was not detected in Novaferon after the accelerated test and three months of long-term test. Conclusion. The established validated method in this study can be used for the determination of antioxidant 264 in the rubber stopper, and the brominated butyl rubber stopper has good compatibility with Novaferon.


2018 ◽  
Vol 145 ◽  
pp. 202-206
Author(s):  
Hong-Bing Chen ◽  
Pu-Cheng Wang ◽  
Bo Liu ◽  
Feng-Shun Zhang ◽  
Yin-Yong Ao

RSC Advances ◽  
2017 ◽  
Vol 7 (88) ◽  
pp. 55966-55966
Author(s):  
Mengnan Ruan ◽  
Dan Yang ◽  
Wenli Guo ◽  
Shuo Huang ◽  
Yibo Wu ◽  
...  

Correction for ‘Improved electromechanical properties of brominated butyl rubber filled with modified barium titanate’ by Mengnan Ruan et al., RSC Adv., 2017, 7, 37148–37157.


Author(s):  
Wei Zhang ◽  
Jinping Xiong ◽  
Yang Zang ◽  
Yanli Lu ◽  
Weisheng Lin ◽  
...  

The thermal decomposition of brominated butyl rubber under air atmosphere was investigated by thermogravimetry (TG) and derivative thermogravimetry (DTG) at various heating rates. The kinetic parameters were evaluated by TG and the isoconversional method developed by Ozawa. One prominent decomposition stage was observed in the DTG curves at high heating rates while an additional small peak was observed at low heating rates. The apparent activation energy determined using the TG method ranged from 219.31–228.13 kJ·mol-1 at various heating rates. The non-isothermal degradation was found to be a first order reaction, and the activation energy, as determined by the isoconversional method, increased with an increase in mass loss. The kinetic data suggested that brominated butyl rubber had excellent thermal stability. This study will indirectly aid in improving rubber pyrolysis methods and in enhancing the heat resistance of materials.


2015 ◽  
Vol 133 (15) ◽  
pp. n/a-n/a ◽  
Author(s):  
Xia Yuan ◽  
Jinyuan Wang ◽  
Chunwei Wang ◽  
Steven Gao ◽  
Sharon Guo ◽  
...  

2017 ◽  
Vol 74 (12) ◽  
pp. 4959-4972 ◽  
Author(s):  
Xinya Yang ◽  
Yong Zhang ◽  
Yan Xu ◽  
Steven Gao ◽  
Sharon Guo

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