高温测试条件下一体成型的碳纤维复合材料拉伸试件制作及优化分析  

Manufacturing and Optimization Analysis of Carbon Fiber Composite Tensile Specimens Formed as a Whole under High Temperature Testing Conditions

作　　者：刘佳 遇家运 王维 王宝瑞 王清民 刘甲秋 LIU Jia;YU Jiayun;WANG Wei;WANG Baorui;WANG Qingmin;LIU Jiaqiu(Harbin FRP Institude Co.,Ltd.,Harbin 150028)

机构地区：[1]哈尔滨玻璃钢研究院有限公司,哈尔滨150028

出　　处：《纤维复合材料》2023年第1期56-59,共4页Fiber Composites

摘　　要：本文突破常规成型过程及试件制作过程,对碳纤维树脂基复合材料单向板0°拉伸试件进行制作,用于测量其在高温条件下的力学性能。首先通过结合生产和实际测试需求,化繁为简,对高温测试试件所需的0°拉伸一体化成型模具进行设计,将复合材料加强片通过试件的本体树脂粘接,固化后一体成型,通过切割即可得到所需尺寸的试件,此方法避免了常规粘贴加强片操作及对胶粘剂进行涂抹和固化的过程。通过前期的模具设计,进行工艺摸索和试件制备,材料选用T800碳纤维和双马来酰亚胺树脂体系构成的预浸料,进行了180℃和240℃条件下的力学性能测试。同等条件下进行传统后粘贴加强片的试件测试,控制测试条件一致的情况下,将数据结果进行对比分析发现,一体成型高温0°拉伸试件的力学性能有更好的表征,充分发挥高温状态下单向纤维的性能,降低了传统试件加强片及胶粘剂对本体材料的损伤,缩减了时间和人工成本,碳纤维一体化高温试件的制作工艺有可行性。This paper breaks through the conventional forming process and test specimen making process,and makes 0-degree tensile specimen of carbon fiber resin matrix composite unidirectional plate,which is used to measure its mechanical properties at high temperature.First of all,through combining production and actual testing requirements,the high temperature test required by the 0-degree tensile integrated molding design.Through the design of mold,the composite strengthening sheet is bonded by the bulk resin of the specimen,and the specimen of required size can be obtained by cutting.This method avoids the process of pasting and curing the adhesive.Through the early mold design,the process was explored and the test piece was prepared.The material was prepreg composed of T800 carbon fiber and bismaleimide resin system,and the performance was tested under the conditions of 180℃ and 240℃.Under the same conditions,the test piece of traditional post-pasted reinforcing was tested,and the data results were compared under the same control test conditions.The results show that the mechanical properties of the unidirectional fiber are better characterized by the unidirectional fiber under the condition of high temperature,which reduces the damage of the traditional specimen strengthening pieces and adhesives on the bulk material,and reduces the time and labor cost.The production process of carbon fiber integrated high temperature specimen is feasible.

关 键 词：复合材料 高温测试 单向试件 一体成型 

分 类 号：TB33[一般工业技术—材料科学与工程] TQ342.742[化学工程—化纤工业]