Enhanced thermal stabilities and char yields of carbon fibers reinforced boron containing novolac phenolic resins composites
| Autor: | Junwei Gu, Junjun Feng, Yaosong Qin, Sruthi Tadakamalla, Jian Li, Zhanhu Guo, Xiaofei Zhang, Lixin Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Yield (engineering) Polymers and Plastics Organic Chemistry Thermal decomposition Composite number Formaldehyde 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Thermal Materials Chemistry Phenol Char Phenylboronic acid Composite material 0210 nano-technology |
| Zdroj: | Journal of Polymer Research. 24 |
| ISSN: | 1572-8935 1022-9760 |
| DOI: | 10.1007/s10965-017-1338-9 |
| Popis: | 4-hydroxymethyl phenylboronic acid (4-HMPBA), phenol and formaldehyde were for the first time to synthesize boron containing novolac phenolic resins (Novolac-4-HMPBA). Its corresponding carbon fibers (CF) composites were also fabricated via the lamination followed by hot-compression. Results revealed that Novolac-4-HMPBA was successfully synthesized. Compared to common novolac phenolic resin (NPR), the corresponding decomposition temperature of 5% weight loss (T 5 ) and char yield at 800 °C (C 800 ) of cured Novolac-4-HMPBA-30 were increased to 369.1 °C and 69.7%, increased by 41.3% and 26.3%, respectively. The CF/Novolac-4-HMPBA-20 composites presented relatively higher interlaminar shear strength (ILSS) of 35.9 MPa, increased by 50.2% compared to that of CF/NPR composites. After the treatment at 800 °C for one hour under Ar atmosphere, the corresponding ILSS value of CF/Novolac-4-HMPBA-20 composite was decreased to 7.8 MPa, but still higher than that of CF/NPR composites (3.0 MPa). |
| Databáze: | OpenAIRE |
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