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原位阴离子开环聚合法制备连续玻璃纤维增强阴离子聚酰胺-6复合材料及其性能

, PP. 1134-1141

Keywords: 阴离子开环聚合,阴离子聚酰胺-6,玻璃纤维,复合材料,力学性能

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Abstract:

采用原位阴离子开环聚合法制备了连续玻璃纤维(GF)增强阴离子聚酰胺-6(APA6)复合材料,考察了催化剂配比和聚合温度对APA6树脂转化率和分子量的影响,采用DSC和TGA研究了聚合温度和时间对连续GF/APA6复合材料结晶度的影响,进一步探讨了聚合温度和时间对连续GF/APA6复合材料力学性能的影响,采用SEM观察了复合材料的拉伸断裂形貌。结果表明:当聚合温度为150℃,聚合时间为45min时,连续GF/APA6复合材料的力学性能达到最高,材料的拉伸强度为538.1MPa,弯曲强度为497.2MPa,层间剪切强度为52.5MPa;SEM分析表明,APA6树脂基体与玻璃纤维具有较好的结合性。

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