التفاصيل البيبلوغرافية
| العنوان: |
Preparation of phthalonitrile resins containing siloxane linkages with improved processability. |
| المؤلفون: |
Yin, Weihao, Sang, Xiaoming, Dong, Jinghui, Chen, Zhen, Chen, Xinggang |
| المصدر: |
High Performance Polymers; Aug2023, Vol. 35 Issue 6, p618-626, 9p |
| مصطلحات موضوعية: |
BENZENEDICARBONITRILE, BENDING strength, MELTING points, FLEXIBLE structures, POINT processes, HIGH temperatures |
| مستخلص: |
To improve the processability of biphenyl phthalonitrile resin, a flexible siloxane structure was introduced into the phthalonitrile monomer through molecular design, which was then blended with a biphenyl monomer to prepare phthalonitrile alloy resins. When the ratio of phthalonitrile monomer containing flexible siloxane to biphenyl phthalonitrile monomer was 1:1, the processing window widened from 58 to 110°C, as compared to that of biphenyl phthalonitrile. Due to the introduction of the biphenyl structure into the phthalonitrile alloy resins, the initial decomposition temperature of the silicon-containing phthalonitrile resin increased from 385 to 516°C. More importantly, the phthalonitrile alloy resin exhibited a high bending strength (66 MPa) and bending modulus (3762 MPa), indicating that it could be potentially applied as high temperature structural composite matrices. Furthermore, it provides a new strategy for processing phthalonitrile resins with a high melting point and narrow processing window. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
