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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and Characterization of High Char Yield Polybenzoxazine/Polyarylacetylene Blends for Resin-Transfer Molding
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Preparation and Characterization of High Char Yield Polybenzoxazine/Polyarylacetylene Blends for Resin-Transfer Molding

机译：树脂转移成型高炭收率聚苯并恶嗪/聚芳基乙炔共混物的制备与表征

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摘要

Benzoxazine precursors (BOZP), 6,6'-bis(2,3-dihydro-3-(3-ethynylphenyl)-4H-1,3- benzoxazinyl)ketone and 6,6'-bis(2,3-dihydro-3-(3-ethynylphenyl)-4H-1,3-benzoxazinyl)ether were synthesized and characterized by Proton nuclear magnetic resonace (H-1-NMR) and Fourier transform infrared spectroscopy (FTIR). The polyarylacetylene (PAA) was synthesized through thermal polymerization of diethynylbenzene, and characterized by H-1-NMR, FTIR, and Differential Scanning Calorimetry (DSC). The BOZP/PAA blends were prepared with different contents of PAA, and their viscosity was measured using NDJ-79 rotating visometer. The curing behavior of BOZP/PAA blends was characterized by DSC. The thermal stability of cured BOZP/PAA blends was studied using Thermogravimetric Analysis, the results show char yield at 800 degrees C was in the range of 78-84%.
机译：苯并恶嗪前体（BOZP），6,6'-双（2,3-二氢-3-（3-乙炔基苯基）-4H-1,3-苯并恶嗪基）酮和6,6'-双（2,3-二氢-合成了3-（3-乙炔基苯基）-4H-1,3-苯并恶嗪基）醚，并通过质子核磁共振（H-1-NMR）和傅里叶变换红外光谱（FTIR）对其进行了表征。通过二乙炔基苯的热聚合反应合成了聚芳基乙炔（PAA），并通过H-1-NMR，FTIR和差示扫描量热法（DSC）进行了表征。使用不同含量的PAA制备BOZP / PAA共混物，并使用NDJ-79旋转粘度计测量其粘度。用DSC表征BOZP / PAA共混物的固化行为。使用热重分析法研究了固化的BOZP / PAA共混物的热稳定性，结果表明，在800摄氏度下焦炭收率在78-84％的范围内。

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