The invention belongs to the field of composite material forming and processing, and discloses a preparation method of fiber composite sheet based on nano-ceramic material. In this method, nano-ceramic powder is sprayed on both sides of the fabricated fibre cloth and preprepreg is obtained by heating for a period of time; single-layer composite sheet is obtained by cutting the preprepreg, and then several single-layer composite sheets are put into the die to be heated and pressurized so that the composite sheet can be fully combined; finally, the heating and decompression are stopped and the composite sheet is prepared by opening the die after cooling to room temperature. The preprepreg obtained by heating below the melting point of nano-ceramic powder at temperatures ranging from 0 to 200 degrees C can ensure that nano-ceramic powder and fabricated fiber cloth are fully impregnated while avoiding excessive heating time and overheating; and by hot pressing forming technology, the prepreg is heated to temperatures higher than or lower than the melting point of nano-ceramic powder at temperatures ranging from 0 to 100 degrees C, ranging from 0 to 100 degrees C. The composite plate with ceramic and fiber properties was obtained.
【技术实现步骤摘要】
一种基于纳米陶瓷材料的编制纤维复合板材及其制备方法
本专利技术属于复合材料成形加工领域,更具体地,涉及一种基于纳米陶瓷材料的编制纤维复合板材及其制备方法。
技术介绍
编织碳纤维增强聚合物基复合材料以聚合物为基体,采用长径比超过1000的碳纤维作为其增强相,由于连续纤维的不间断增强效应,具有超高比强度和比刚度。该新型材料是航空航天、汽车等行业承载件“以塑代钢”,实现轻量化的理想材料,应用前景十分广阔,如波音787飞机采用复合材料的零部件占总机重量的50%。但是碳纤维增强聚合物基复合材料在高于聚合物Tg温度时,机械性能迅速降低至0.1%;同样无机金属材料在高温环境中,机械强度也会严重降低,例如:不锈钢的变形温度在300℃左右。因此,目前的碳纤维增强聚合物复合材料和无机金属材料无法满足航空航天和国防军事等高温领域的应用。而陶瓷具有高熔点、高硬度、高耐磨性和耐氧化等优点,以陶瓷为基体、纤维为增强相的复合材料可以结合二者的优良性能。但是陶瓷的熔点很高,在复合过程中需要加热的温度过高,这会破坏纤维增强相的结构,使两者难以成功复合。
技术实现思路
针对现有技术的上述缺点和/或改进需 ...
【技术保护点】
1.一种基于纳米陶瓷材料的编制纤维复合板材的制备方法,其特征在于,该方法包括如下步骤:(a)在编制纤维布的两侧均匀地喷涂纳米陶瓷粉末,然后加热一段时间后获得预浸料;(b)将冷却后的预浸料按指定的规格裁剪获得单层复合板材,然后将多个单层复合板材放入模具中加热加压使复合板材完全结合;(c)最后停止加热并缓慢卸压,待冷却至室温后开模得到所述编制纤维复合板材。
【技术特征摘要】
1.一种基于纳米陶瓷材料的编制纤维复合板材的制备方法,其特征在于,该方法包括如下步骤:(a)在编制纤维布的两侧均匀地喷涂纳米陶瓷粉末,然后加热一段时间后获得预浸料;(b)将冷却后的预浸料按指定的规格裁剪获得单层复合板材,然后将多个单层复合板材放入模具中加热加压使复合板材完全结合;(c)最后停止加热并缓慢卸压,待冷却至室温后开模得到所述编制纤维复合板材。2.如权利要求1所述的基于纳米陶瓷材料的编制纤维复合板材的制备方法,其特征在于,所述步骤(a)中纳米陶瓷粉末的粒径优选为1nm~1000nm。3.如权利要求1或2所述的基于纳米陶瓷材料的编制纤维复合板材的制备方法,其特征在于,所述步骤(a)中加热的时间优选为5min~10min。4.如权利要求1~3任一项所述的基于纳米陶瓷材料的编制纤维复合板材的制备方法,其特征在于,所述步骤(a)中加热的温度低于...
【专利技术属性】
技术研发人员:王云明,孙艳玲,周华民,黄志高,张云,郑嘉琦,
申请(专利权)人:华中科技大学,
类型:发明
国别省市:湖北,42
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