Preparation and Properties of VPCS/PMPS Composites

Article Preview

Abstract:

VPCS with [Si-CH2-CH2-Si] structure were synthesized through hydrosilylation reaction of divinyldimethylsilane and diphenylsilane. VPCS were mixed with additive liquid PMPS silicone rubber and VPCS/PMPS based ablative composites were also prepared. VPCS play an important role in improving the thermal stability of PMPS. The 10% weight loss of VPCS/PMPS is 530.6°C, and Tmax is at 601.3°C, 43°C and 48°C higher than PMPS. Anti-ablation fillers have great important on composites. VPCS/PMPS/ZrB2 showed higher mechanical properties and ablative resistance, which is accordance with the results of SEM morphology observation.

You might also be interested in these eBooks

Info:

Periodical:

Solid State Phenomena (Volume 329)

Pages:

3-8

Citation:

Online since:

March 2022

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2022 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Q. Mu, D. Peng, F. Wang, et al, Preparation and Properties of Additive Polysiloxane/POSS Hybrid Composites, Key Engineering Materials, 753 (2017) 50-59.

DOI: 10.4028/www.scientific.net/kem.753.50

Google Scholar

[2] T. Hu, L. Dai, X. Y. Gao, et al., Synthesis, characterization, and properties of hydroxyl-terminated copolysiloxanes containing-cyanopropyl groups, J. Polym. Sci. Part A: Polym. Chem. 52 (2014) 1408-1421.

DOI: 10.1002/pola.27126

Google Scholar

[3] Q. Mu, D. Peng, W. Ju, et al, Synthesis and Effects of MDT Silicone Resin on PMPS Based Ablative Composites, J. Appl. Polym. Sci., 132 (2015) 41571.

DOI: 10.1002/app.41571

Google Scholar

[4] S. Yajima, J. Hayashi, M. Omori, et al. Development of a silicon carbide fibre with high tensile strength, Nature, 261 (1976) 638-685.

DOI: 10.1038/261683a0

Google Scholar

[5] W. Xing, L. Zhang, Z. Li, Y. Zhang, J. Du, Patent CN201280074976.2 (2012).

Google Scholar