LAPSE:2021.0121
Published Article
LAPSE:2021.0121
Synthesis of Silicon Hybrid Phenolic Resins with High Si-Content and Nanoscale Phase Separation Structure
March 14, 2021
In this paper, a set of silicon hybrid phenolic resins (SPF) with high Si-content were prepared by mixing phenolic resins with self-synthesized silicon resins. In order to obtain the nanoscale phase structure, condensation degree and the amount of Si-OH groups in silicon resins were controlled by the amount of inhibitor ethanol in the hydrolytic condensation polymerization of siloxane. Increasing the amount of ethanol resulted in more silanol groups and a lower degree of condensation for silicon resins, which then led to more formation of Si-O-Ph bonds in hybrid resin and improved compatibility between silicon resin and phenolic resin. When 400% ethanol by weight of siloxane was used in the sample SPF-4, nanoscale phase separation resulted. The residual weight of the cured SPF-4 at 1000 °C (R1000) significantly increased compared to pure phenolic resins. The result of the oxyacetylene flame ablation and the Cone Calorimeter test confirmed the improved ablative property and flammability after the modification. The performance improvement of the cured SPF-4 was attributed to the nanoscale phase structure and high silicon content, which promoted the formation of dense silica protective layers during pyrolysis.
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Keywords
ablative property, nanoscale phase separation, oxidation resistance, silicon hybrid phenolic resin
Subject
Suggested Citation
Yuan W, Chen F, Li S, Du Y, Luo Z, Sun Y, Li H, Zhao T. Synthesis of Silicon Hybrid Phenolic Resins with High Si-Content and Nanoscale Phase Separation Structure. (2021). LAPSE:2021.0121
Author Affiliations
Yuan W: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Chen F: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China [ORCID]
Li S: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Du Y: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Luo Z: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Sun Y: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Li H: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Zhao T: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Chen F: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China [ORCID]
Li S: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Du Y: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Luo Z: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Sun Y: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Li H: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Zhao T: Key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049,
Journal Name
Processes
Volume
8
Issue
9
Article Number
E1129
Year
2020
Publication Date
2020-09-10
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8091129, Publication Type: Journal Article
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LAPSE:2021.0121
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doi:10.3390/pr8091129
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[v1] (Original Submission)
Mar 14, 2021
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Mar 14, 2021
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https://psecommunity.org/LAPSE:2021.0121
Original Submitter
Calvin Tsay
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