CN109249652B - 全碳纤维复合材料蜂窝结构及其制备方法 - Google Patents
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Abstract
本发明提供一种全碳纤维复合材料蜂窝结构及其制备方法,包括上面板、波纹板蜂窝夹芯层和下面板,所述波纹板蜂窝夹芯层设置在上面板和下面板中间;所述波纹板蜂窝夹芯层由单片波纹板蜂窝芯子构成,所述单片波纹板蜂窝芯子有三个蜂窝单胞。本发明波纹板制备的蜂窝结构本身具有环向约束力,从而可以增加碳纤维的单向压缩强度,大大提高其平压强度和水压强度,并且比起同等强度的浮力材料玻璃微珠密度更加小,整体密度在0.25g/cm3,强度更高,可以提供更大的浮力,比起应用在水下几百米深的玻璃微珠浮力材料,全碳纤维复合材料蜂窝结构可以在水下3000米提供浮力应用。
Description
技术领域
本发明涉及一种蜂窝结构及其制备方法,尤其涉及一种全碳纤维复合材料蜂窝结构及其制备方法。
背景技术
蜂窝夹层结构是复合材料的一种特殊类型。由于这种轻型结构材料具有最优比强度、比刚度、最大抗疲劳性能、表面平整光滑等特点,已在中国航天领域得到较为广泛地应用。蜂窝夹层结构实质上是由3种基本材料组合而成的复合材料,这为结构人员提供了广泛改变参数以满足设计技术指标的可能性。
由于碳纤维复合材料蜂窝结构具有优异的力学性能,在航空航天领域拥有广阔的应用空间,但在水下的应用还很少,把复合材料蜂窝结构作为浮力材料应用到水下是具有前景的。
发明内容
本发明的目的是为了把复合材料蜂窝结构应用到水下而提供一种全碳纤维复合材料蜂窝结构及其制备方法。
本发明的目的是这样实现的:
一种全碳纤维复合材料蜂窝结构,包括上面板、波纹板蜂窝夹芯层和下面板,所述波纹板蜂窝夹芯层设置在上面板和下面板中间;所述波纹板蜂窝夹芯层由单片波纹板蜂窝芯子构成,所述单片波纹板蜂窝芯子有三个蜂窝单胞。
一种全碳纤维复合材料蜂窝结构的制备方法,包括如下步骤:
步骤一:制备复合材料面板,打开恒温加热台,调节温度至30℃,在加热台上面铺设8层单向增强碳纤维复合材料,然后用密封袋密封好,放入热压罐中升温加压固化,得到复合材料面板;
步骤二:制备上面板和下面板,使用大于200目的砂纸打磨步骤一得到的复合材料面板的单侧表面,然后使用丙酮去除打磨面的灰尘和油污,再用去离子水清洗干净,然后烘干,得到处理后的复合材料面板,然后使用雕刻机切割复合材料面板得到上面板和下面板;
步骤三:制备波纹板,打开恒温加热台,调节温度至30℃,在加热台上面铺设3层单向增强碳纤维复合材料,然后在6mm的波纹板阳模上面铺设压实成波纹板,最后合上阴模放入硫化机上面,调节温度至80℃,把硫化机合模保持10min,重复合模三次,之后再次合模并调节温度至130℃保持两小时,降温冷却得到波纹板;
步骤四:制备单片波纹板蜂窝芯子,把单块波纹板放在波纹板模具上,用打磨机把波纹板凸起的波纹打磨粗糙,用丙酮擦洗干净,把擦干净的波纹板放在一块阴模上面,在波纹板凸起的波纹上面贴上胶膜,然后把另一块波纹板粘上去,然后再合上另一块阴模,在硫化机上面升温至130℃加压固化两小时,得到波纹蜂窝板,使用雕刻机将得到的波纹蜂窝板切割出带有三个单胞的波纹板蜂窝,得到单片波纹板蜂窝芯子;
步骤五:制备波纹板蜂窝夹芯层,将步骤四得到的单片波纹板蜂窝芯子排列整齐的用胶膜粘接在一起,得到波纹板蜂窝夹芯层;
步骤六:制备全碳纤维复合材料蜂窝结构,将上面板组装在波纹板蜂窝夹芯层上表面,将下面板组装在波纹板蜂窝夹芯层下表面,波纹板蜂窝夹芯层与上面板和下面板之间采用胶膜粘接,然后采用模具热压工艺固化两个小时,温度为130℃,冷却得到全碳纤维复合材料蜂窝结构。
本发明还包括这样一些特征:
1.所述步骤一中单向增强碳纤维复合材料的铺层角度为[(0/90/90/0)]S;
2.所述步骤三中单向增强碳纤维复合材料的铺层角度为(0/90/0);
3.所述步骤一中热压罐工艺过程为用抽真空检测并确认真空袋密封良好之后,以2.0℃/min的升温速率线性升温至80℃,增加罐内环境压力至0.1MPa后保持30分钟;然后以2.0℃/min的升温速率线性升温至130℃,增加罐内环境压力至0.3MPa后保持90分钟;待90分钟之后停止加热并释放罐内压力,待罐内温度冷却之后,取出固化好的复合材料面板;
4.所述波纹板蜂窝夹芯层密度控制在0.17g/cm3。
本发明一种全碳纤维复合材料蜂窝结构,全碳纤维复合材料蜂窝结构由上面板(1)、波纹板蜂窝夹芯层和下面板组成;所述的波纹板蜂窝夹芯层由波纹蜂窝板切割出的单片波纹板蜂窝粘接固化而成;所述的由波纹板合成的波纹蜂窝板由上层复合材料波纹板和下层复合材料波纹板板通过胶膜粘接固化而成,所述的上层波纹板和下层波纹板为由单向碳纤维复合材料(0/90/0)铺设而成。所述的波纹板蜂窝夹芯层的上表面与上面板之间用J272胶膜粘接在一起,所述的波纹板蜂窝夹芯层的下表面与下面板之间用J272胶膜粘接在一起。
本发明一种全碳纤维复合材料蜂窝结构的制备方法,以下步骤进行:一、制备复合材料面板:打开恒温加热台,调节温度至30℃,在加热台上面铺设8层单向增强碳纤维复合材料得到复合材料面板,铺层角度为[(0/90/90/0)]S,然后在密封袋中用腻子密封好,放入热压罐中升温加压固化,得到制备上下面板的复合材料板;二、制备上下面板:使用200目以上的砂纸打磨步骤一得到的复合材料板的单侧表面,然后使用丙酮去除打磨面的灰尘和油污,再用去离子水清洗干净,然后烘干,得到处理后的复合材料板,然后使用雕刻机把处理后的复合材料板切割成比多级蜂窝结构夹芯层大一点的正方形面板,得到上面板和下面板;三、制备波纹板:打开恒温加热台,调节温度至30℃,在加热台上面铺设(0/90/0)的单向碳纤维板得到三层的碳纤维板,然后在6mm的波纹板阳模上面铺设压实成波纹板,最后合上阴模放入硫化机上面,调节温度至80,把硫化机合模保持10min,重复合模三次,之后再次合模并调节温度至130度保持两小时,降温冷却得到波纹板;四、制备单片波纹板蜂窝芯子:把单块波纹板放在波纹板模具上,用打磨机把波纹板凸起的波纹打磨粗糙,用丙酮擦洗干净,把擦干净的波纹板放在一块阴模上面,在波纹板凸起的波纹上面贴上胶膜,然后把另一块波纹板粘上去,然后再合上另一块阴模,在硫化机上面升温至130°加一定压力固化两小时,得到波纹蜂窝板,使用雕刻机将上面得到的波纹蜂窝板切割出带有三个单胞的波纹板蜂窝,得到单片波纹板蜂窝芯子;五、制备波纹板蜂窝夹芯层:将多个步骤四得到的单片波纹板蜂窝排列整齐的用胶膜粘接在一起,得到波纹板蜂窝夹芯层;六、制备全碳纤维复合材料蜂窝结构:将上面板组装在步骤五得到的波纹板蜂窝夹芯层上表面,将下面板组装在步骤五得到的波纹板蜂窝夹芯层下表面,波纹板蜂窝夹芯层与上面板和下面板之间采用胶膜粘接,然后采用模具热压工艺固化,得到全碳纤维复合材料蜂窝结构。
与现有技术相比,本发明的有益效果是:
本发明的一种全碳纤维复合材料蜂窝结构,本发明波纹板制备的蜂窝结构本身具有环向约束力,从而可以增加碳纤维的单向压缩强度,大大提高其平压强度和水压强度,并且比起同等强度的浮力材料玻璃微珠密度更加小,整体密度在0.25g/cm3,强度更高,可以提供更大的浮力,比起应用在水下几百米深的玻璃微珠浮力材料,全碳纤维复合材料蜂窝结构可以在水下3000米提供浮力应用。本发明比之玻璃微珠浮力材料,其强度有更高的提升,达到了53MPa,密度也更加小。本发明改善现有浮力材料玻璃微珠密度大强度低的状况,而提供了一种全碳纤维复合材料蜂窝结构;增加了其水压强度和密度,大大提高了其浮力和应用深度。
附图说明
图1是本发明的全碳纤维复合材料蜂窝结构示意图;
图2是本发明的波纹板蜂窝夹芯层示意图;
图3是本发明的波纹板主视图;
图4是本发明的单片波纹板蜂窝芯子俯视图。
具体实施方式
下面结合附图与具体实施方式对本发明作进一步详细描述。
本发明为了改善现有玻璃微珠浮力材料密度大强度低的状况,而提供了一种全碳纤维复合材料蜂窝结构;本发明的一种全碳纤维复合材料蜂窝结构由上面板1、波纹板蜂窝夹芯层2和下面板3组成;所述的波纹板蜂窝夹芯层2由多个带三个蜂窝单胞的单片波纹板蜂窝芯子4通过胶膜粘接在一起得到;所述的单片波纹板蜂窝芯子4由波纹蜂窝板用高精度雕刻机切割得到;所述的波纹蜂窝板由上层波纹板4-1和下层波纹板4-3用胶膜4-2粘接在一起固化得到;所述的上层波纹板4-1和下层波纹板4-3为单向碳纤维复合材料按(0/90/0)铺层得到。
本发明的一种全碳纤维复合材料蜂窝结构的制备方法按以下步骤进行:一、制备复合材料面板:打开恒温加热台,调节温度至30℃,在加热台上面铺设8层单向增强碳纤维复合材料得到复合材料面板,铺层角度为[(0/90/90/0)]S,然后在密封袋中用腻子密封好,放入热压罐中升温加压固化,得到制备上面板1和下面板3的复合材料板;二、制备上下面板:使用200目以上的砂纸打磨步骤一得到的复合材料板的单侧表面,然后使用丙酮去除打磨面的灰尘和油污,再用去离子水清洗干净,然后烘干,得到处理后的复合材料板,然后使用雕刻机把处理后的复合材料板切割成比多级蜂窝结构夹芯层大一点的正方形面板,得到上面板1和下面板3;三、制备波纹板:打开恒温加热台,调节温度至30℃,在加热台上面铺设(0/90/0)的单向碳纤维板得到三层的碳纤维板,然后在6mm的波纹板阳模上面铺设压实成波纹板,最后合上阴模放入硫化机上面,调节温度至80,把硫化机合模保持10min,重复合模三次,之后再次合模并调节温度至130度保持两小时,降温冷却得到波纹板;四、制备单片波纹板蜂窝芯子:把单块波纹板放在波纹板模具上,用打磨机把波纹板凸起的波纹打磨粗糙,用丙酮擦洗干净,把擦干净的波纹板放在一块阴模上面,在波纹板凸起的波纹上面贴上胶膜,然后把另一块波纹板粘上去,然后再合上另一块阴模,在硫化机上面升温至130°加一定压力固化两小时,得到波纹蜂窝板,使用雕刻机将上面得到的波纹蜂窝板切割出带有三个单胞的波纹板蜂窝,得到单片波纹板蜂窝芯子4;五、制备波纹板蜂窝夹芯层:将多个步骤四得到的单片波纹板蜂窝排列整齐的用胶膜粘接在一起,得到波纹板蜂窝夹芯层2;六、制备全碳纤维复合材料蜂窝结构:将上面板1组装在步骤五得到的波纹板蜂窝夹芯层上表面,将下面板组装在步骤五得到的波纹板蜂窝夹芯层下表面,波纹板蜂窝夹芯层与上面板1和下面板之间采用胶膜粘接,然后采用模具热压工艺固化,得到全碳纤维复合材料蜂窝结构。
通本实施方式的一种单向碳纤维复合材料多级蜂窝结构,为改善现有浮力材料玻璃微珠密度大强度低的状况,而提供了一种全碳纤维复合材料蜂窝结构;增加了其水压强度和密度,大大提高了其浮力和应用深度。
以上内容仅为本发明的较佳实施案例,对于本技术领域的普通技术人员,依据本发明的思想,在具体实施方式及应用范围上均可有改变之处,本说明书内容不应理解为对本发明的限制。
综上所述:本发明涉及一种全碳纤维复合材料蜂窝结构及其制备方法。碳纤维复合材料蜂窝结构具有优异的力学性能,在航空航天领域拥有广阔的应用空间,但在水下的应用还很少,为把复合材料蜂窝结构作为浮力材料应用到水下,作为一种比玻璃微珠浮力材料更好的浮力材料应用于深海,本发明提出了全碳纤维复合材料蜂窝结构及其制备方法。产品由上面板1、波纹板蜂窝夹芯层和下面板组成;所述的波纹板蜂窝夹芯层由多个由波纹板合成的波纹板蜂窝通过雕刻机切割再用胶膜粘接组装而成,所述的由波纹板合成的波纹板蜂窝由上层复合材料波纹板和下层复合材料波纹板板通过胶膜粘接固化而成,所述的复合材料波纹板为由单向碳纤维复合材料(0/90/0)铺设而成。制备方法如下:一、制备复合材料面板;二、制备上、下面板;三、制备波纹板;四、制备单片波纹板蜂窝芯子;五、制备波纹板蜂窝结构夹芯层;六、制备全碳纤维复合材料蜂窝结构。本发明制备的全碳纤维复合材料蜂窝结构的比平压强度大于300×103m2/s2。
Claims (9)
1.一种全碳纤维复合材料蜂窝结构的制备方法,其特征是,包括如下步骤:
步骤一:制备复合材料面板,打开恒温加热台,调节温度至30℃,在加热台上面铺设8层单向增强碳纤维复合材料,然后用密封袋密封好,放入热压罐中升温加压固化,得到复合材料面板;
步骤二:制备上面板和下面板,使用大于200目的砂纸打磨步骤一得到的复合材料面板的单侧表面,然后使用丙酮去除打磨面的灰尘和油污,再用去离子水清洗干净,然后烘干,得到处理后的复合材料面板,然后使用雕刻机切割复合材料面板得到上面板和下面板;
步骤三:制备波纹板,打开恒温加热台,调节温度至30℃,在加热台上面铺设3层单向增强碳纤维复合材料,然后在6mm的波纹板阳模上面铺设压实成波纹板,最后合上阴模放入硫化机上面,调节温度至80℃,把硫化机合模保持10min,重复合模三次,之后再次合模并调节温度至130℃保持两小时,降温冷却得到波纹板;
步骤四:制备单片波纹板蜂窝芯子,把单块波纹板放在波纹板模具上,用打磨机把波纹板凸起的波纹打磨粗糙,用丙酮擦洗干净,把擦干净的波纹板放在一块阴模上面,在波纹板凸起的波纹上面贴上胶膜,然后把另一块波纹板粘上去,然后再合上另一块阴模,在硫化机上面升温至130℃加压固化两小时,得到波纹蜂窝板,使用雕刻机将得到的波纹蜂窝板切割出带有三个单胞的波纹板蜂窝,得到单片波纹板蜂窝芯子;
步骤五:制备波纹板蜂窝夹芯层,将步骤四得到的单片波纹板蜂窝芯子排列整齐的用胶膜粘接在一起,得到波纹板蜂窝夹芯层;
步骤六:制备全碳纤维复合材料蜂窝结构,将上面板组装在波纹板蜂窝夹芯层上表面,将下面板组装在波纹板蜂窝夹芯层下表面,波纹板蜂窝夹芯层与上面板和下面板之间采用胶膜粘接,然后采用模具热压工艺固化两个小时,温度为130℃,冷却得到全碳纤维复合材料蜂窝结构;所述的全碳纤维复合材料蜂窝结构包括上面板、波纹板蜂窝夹芯层和下面板,所述波纹板蜂窝夹芯层设置在上面板和下面板中间;所述波纹板蜂窝夹芯层由单片波纹板蜂窝芯子构成,所述单片波纹板蜂窝芯子有三个蜂窝单胞。
2.根据权利要求1所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述步骤一中单向增强碳纤维复合材料的铺层角度为[(0/90/90/0)]S。
3.根据权利要求1或2所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述步骤三中单向增强碳纤维复合材料的铺层角度为(0/90/0)。
4.根据权利要求1或2所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述步骤一中热压罐工艺过程为用抽真空检测并确认真空袋密封良好之后,以2.0℃/min的升温速率线性升温至80℃,增加罐内环境压力至0.1MPa后保持30分钟;然后以2.0℃/min的升温速率线性升温至130℃,增加罐内环境压力至0.3MPa后保持90分钟;待90分钟之后停止加热并释放罐内压力,待罐内温度冷却之后,取出固化好的复合材料面板。
5.根据权利要求3所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述步骤一中热压罐工艺过程为用抽真空检测并确认真空袋密封良好之后,以2.0℃/min的升温速率线性升温至80℃,增加罐内环境压力至0.1MPa后保持30分钟;然后以2.0℃/min的升温速率线性升温至130℃,增加罐内环境压力至0.3MPa后保持90分钟;待90分钟之后停止加热并释放罐内压力,待罐内温度冷却之后,取出固化好的复合材料面板。
6.根据权利要求1或2所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述波纹板蜂窝夹芯层密度控制在0.17g/cm3。
7.根据权利要求3所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述波纹板蜂窝夹芯层密度控制在0.17g/cm3。
8.根据权利要求4所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述波纹板蜂窝夹芯层密度控制在0.17g/cm3。
9.根据权利要求5所述的全碳纤维复合材料蜂窝结构的制备方法,其特征是,所述波纹板蜂窝夹芯层密度控制在0.17g/cm3。
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