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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and properties of bisphenol A-based bis-phthalonitrile composite laminates
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Preparation and properties of bisphenol A-based bis-phthalonitrile composite laminates

机译：双酚A基双邻苯二甲腈复合层压板的制备与性能

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摘要

A series of bisphenol A (BPA)-based 2,2-bis-[4-(3,4-dicyanophenoxy)phenyl] propane (BAPh) prepolymers and polymers were prepared using BPA as a novel curing agent. Ultraviolet-visible and Fourier transform infrared spectroscopy spectrum were used to study the polymerization reaction mechanism of the BAPh/BPA polymers. The curing behaviors were studied by differential scanning calorimetry and dynamic rheological analysis, the results indicated that the BAPh/BPA prepolymers exhibit large processing windows (109.5-148.5°C) and low complex viscosity (0.1-1 Pa·s) at moderate temperature, respectively. Additionally, the BAPh/BPA/glass fiber (GF) composite laminates were manufactured and investigated. The flexural strength and modulus of the composite laminates are 548.7-632.8 MPa and 25.7-33.2 GPa, respectively. The thermal stabilities of BAPh/BPA/GF composite laminates were studied by thermogravimetry analysis. The temperatures at 5% weight loss (T_5%) of the composite laminates are 508.5-528.7°C in nitrogen and 508.1-543.2°C in air. In conclusion, the BAPh/BPA systems can be used as superior matrix materials for numerous advanced composite applications.
机译：使用双酚A作为新型固化剂，制备了一系列基于双酚A（BPA）的2,2-双-[4-（3,4-二氰基苯氧基）苯基]丙烷（BAPh）预聚物。利用紫外可见和傅里叶变换红外光谱研究了BAPh / BPA聚合物的聚合反应机理。通过差示扫描量热法和动态流变分析研究了固化行为，结果表明，BAPh / BPA预聚物在中等温度下具有较大的加工窗口（109.5-148.5°C）和较低的复数粘度（0.1-1 Pa·s），分别。另外，制造并研究了BAPh / BPA /玻璃纤维（GF）复合层压板。复合层压板的抗弯强度和模量分别为548.7-632.8 MPa和25.7-33.2 GPa。通过热重分析法研究了BAPh / BPA / GF复合材料层压板的热稳定性。复合材料层压板在5％失重（T_5％）下的温度在氮气中为508.5-528.7°C，在空气中为508.1-543.2°C。总之，BAPh / BPA系统可以用作众多高级复合材料应用中的优质基体材料。

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