CN114311871B - 可折型frp板及其制作方法 - Google Patents

可折型frp板及其制作方法 Download PDF

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CN114311871B
CN114311871B CN202210055398.3A CN202210055398A CN114311871B CN 114311871 B CN114311871 B CN 114311871B CN 202210055398 A CN202210055398 A CN 202210055398A CN 114311871 B CN114311871 B CN 114311871B
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woven cloth
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王力晨
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Tianjin University
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    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29K2307/00—Use of elements other than metals as reinforcement
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    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
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Abstract

本发明公开了一种可折型FRP板，包括一体的第一区域和第二区域；所述第二区域设置在两个相邻的所述第一区域之间，从而所述第一区域能够以第二区域为转动轴从而折叠和展开；所述第一区域为纤维编织布经过树脂浸渍固化的板状制品，刚性不可折；所述第二区域为柔性的纤维编织布，所述第二区域的宽度等于FRP板设计厚度的两倍。还公开了一种可折型FRP板的制作方法，将纤维编织布按照设计厚度和铺层设计进行铺设；按照基于折纸的设计方法划分第一区域和第二区域，并按照设计需求设定多个第一区域和第二区域尺寸；将第一区域的纤维编织布浸渍树脂固化，第二区域的纤维编织布不浸渍树脂，待树脂固化成型后即完成可折型FRP板的制作。

Description

可折型FRP板及其制作方法
技术领域
本发明涉及土木工程领域，具体涉及一种可折型FRP板及其制作方法。
背景技术
基于折纸理论的可展结构广泛应用于航天结构、工程防护结构、软体机器人等领域，纤维增强复合材料板(Fiber Reinforced Polymer Plate，简称“复材板”或FRP板)具有轻质高强、耐腐蚀、低松弛、抗疲劳和线膨胀系数小等优异性能，但其无法焊接，铰链连接、粘结连接等方式会产生局部受力较差区域，因而阻碍了复材板在可展结构中的实际应用。
发明内容
本发明的目的在于克服现有技术的缺陷，提供一种可折型的FPR板，本发明的FRP板为一体式结构，结构简单，能够按照折纸设计方案进行折叠，应用于可展结构中。
本发明的目的是通过以下技术方案实现的：
一种可折型FRP板，包括一体的第一区域和第二区域；所述第二区域设置在相邻的两个所述第一区域之间，从而所述第一区域能够以第二区域为转动轴从而折叠和展开；
其中，所述第一区域为纤维编织布经过树脂浸渍固化的板状制品，所述第一区域为刚性不可折；
所述第二区域为柔性的纤维编织布，所述第二区域的宽度等于FRP板设计厚度的两倍。
进一步的，所述纤维编织布选自以下任一：碳纤维布、玻璃纤维布、芳纶纤维布和玄武岩纤维布。
进一步的，当设计的两个相邻第一区域折叠形成的折叠角度为150°＜α≤180°时，所述纤维编织布选用单向纤维编织布，当设计的折叠角度为90°＜α≤150°时，所述纤维编织布选用双向纤维编织布，当设计的折叠角度0°＜α≤90°时，所述纤维编织布选用多向纤维编织布。
进一步的，当设计的折叠结构承受单向设计荷载时使用双向纤维布，当折叠结构承受双向或三向设计荷载时使用多向纤维布。
进一步的，所述第一区域和第二区域为多边形，形状选自以下之一：正方形、长方形、平形四边形和三角形。
一种可折型FRP板的制作方法，包括如下步骤：
将纤维编织布按照设计厚度和铺层设计进行铺设；
按照基于折纸的设计方法进行第一区域和第二区域划分，并按照设计需求设定多个第一区域尺寸和第二区域尺寸；其中第二区域的宽度等于两倍的板设计厚度；
将第一区域的纤维编织布浸渍树脂固化，第二区域的纤维编织布不浸渍树脂；待树脂固化成型后即完成可折型FRP板的制作。制作后的FRP板的第一区域不可折，第二区域可折。
与现有技术相比，本发明的技术方案所带来的有益效果是：
本发明的可折型FRP板以刚性的第一区域为平面板和相邻的柔性的第二区域为转动轴，实现了能够折叠或展开的FRP板结构，从而降低了结构展开和折叠的复杂程度；
而且，所述可折型FRP板为一体结构，按照折纸设计方案折叠，应用于可展结构中，促进高性能纤维增强复合材料在可展结构中的应用，相比现有的结构更为可靠且可重复使用。
附图说明
图1是实施例1的可折型FRP板基本单元平铺的状态图；
图2是实施例1的可折型FRP板基本单元折后状态图；
图3是实施例2的可折型FRP板多单元平铺的状态图；
图4是实施例2的可折型FRP板多单元折后状态图。
图中：
1：第一区域2：第二区域
101,102,103,104,105,106：第一区域
201,202,203,204,205,206：第二区域
具体实施方式
为使本发明实施例的目的、技术方案、有益效果及显著进步更加清楚，下面，结合本发明实例中所提供的附图，对本发明实施例中的技术方案进行清楚、完整的描述，显然，所有描述的这些实施例仅是本发明的部分实施例，而不是全部的实施例；基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
如图1所示，一种可折型FRP板基本单元实例，包括一体的2个第一区域1和第二区域2。在平铺状态下，所述第二区域2设置在相邻的两个所述第一区域1之间，从而实现两个所述第一区域1能够以所述第二区域2为转动轴被折叠或展开，从而降低了结构展开和折叠的复杂程度。所述一种可折型FRP板基本单元可通过组合形成基于折纸的设计方法的复杂的FRP板折叠形式。
所述可折型FRP板基本单元的制作方法，包括如下步骤：
将柔软、可折的多向纤维布按照设计厚度和铺层设计进行铺设；当设计的折叠角度150°＜α≤180°时(其中折叠角度α为两个第一区域折叠形成的夹角)使用单向纤维布，当设计的折叠角度90°＜α≤150°时使用双向纤维布，当设计的折叠角度0°＜α≤90°时使用多向纤维布；按照基于折纸的设计方法进行第一区域1和第二区域2划分，划分2块大小相等的第一区域1，并按照设计需求设定第一区域尺寸和第二区域尺寸；其中所述第二区域2的宽度等于板设计厚度的两倍。
将第一区域的纤维编织布浸渍树脂固化，第二区域的纤维编织布不浸渍树脂；待树脂固化成型后即完成可折型FRP板的制作。
固化后，第一区域的厚度会比第二区域略厚不到1mm，因此忽略两个区域的板厚度差。文中所述的板设计厚度是指固化前第一区域和第二区域的设计厚度。
制作要求：
1、根据设计需求选择高性能纤维编织布的类型，可选碳纤维布、玻璃纤维布、芳纶纤维布和玄武岩纤维布；
2、树脂选择环氧树脂，环氧树脂的玻璃化转变温度不低于60℃，且应高于结构环境最高平均温度10℃以上。
实施例2
实施例2是在实施例1的基本单元基础上，将实施例1进行组合设计的FRP板多单元结构，因此与实施例1相同的内容不再赘述，以下只描述区别特征。如图3所示，一种可折型FRP板多单元实例，包括一体的6个第一区域101,102,103,104,105,106和6个第二区域201,202,203,204,205,206，其中第二区域用虚线表示。本实施例以每两个相邻的第一区域中间的第二区域作为一个第二区域进行表述，分为6个第二区域。也可以直线贯通的区域作为第二区域进行描述，则图3所示的结构中有三个第二区域，即第二区域201和第二区域204视为一个第二区域，第二区域203和第二区域206视为一个第二区域，第二区域202和第二区域205视为一个第二区域。所述可折型FRP板折后状态如图4所示，可用作建筑结构中的耗能构件，提高建筑结构抗震性能。
所述可折型FRP板多单元实例的制作方法，包括如下步骤：
将柔软、可折的纤维编织布按照设计厚度和铺层设计进行铺设；当折叠结构承受单向设计荷载时使用双向纤维布，当折叠结构承受双向或三向设计荷载时使用多向纤维布；按照基于折纸的设计方法进行第一区域1和第二区域2划分，并按照设计需求设定第一区域尺寸和第二区域尺寸；其中所述第二区域2的宽度等于板厚度的两倍。
将第一区域1的纤维编织布浸渍树脂固化，第二区域2的纤维编织布不浸渍树脂；待树脂固化成型后即完成可折型FRP板的制作。
以上实施例仅用以说明本发明的技术方案，而非是对其的限制，尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换，而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围，本领域技术人员根据本说明书内容所做出的非本质改进和调整或者替换，均属本发明所要求保护的范围。

Claims (4)

1.一种可折型FRP板，其特征在于所述FRP板基于折纸的设计方法将纤维编织布划分为第一区域和第二区域；所述第一区域的纤维编织布浸渍树脂固化，第二区域的纤维编织布不浸渍树脂；所述第二区域(2)设置在相邻的两个所述第一区域(1)之间，使所述第一区域(1)能够以第二区域(2)为转动轴从而折叠和展开；
其中，所述第一区域(1)为刚性不可折；
所述第二区域(2)为柔性的纤维编织布，所述第二区域的宽度等于FRP板设计厚度的两倍；
其中，当设计的两个相邻第一区域折叠形成的折叠角度为150°＜α≤180°时，所述纤维编织布选用单向纤维编织布，当设计的折叠角度为90°＜α≤150°时，所述纤维编织布选用双向纤维编织布，当设计的折叠角度0°＜α≤90°时，所述纤维编织布选用多向纤维编织布。
2.根据权利要求1所述的可折型FRP板，其特征在于，所述纤维编织布选自以下任一：碳纤维布、玻璃纤维布、芳纶纤维布和玄武岩纤维布。
3.根据权利要求1所述的可折型FRP板，其特征在于，所述第一区域(1)和第二区域(2)为多边形，所述第一区域形状选自以下之一：正方形、长方形、平形四边形和三角形；所述第二区域形状选自以下之一：正方形、长方形、平形四边形。
4.根据权利要求1所述的可折型FRP板的制作方法，其特征在于，包括如下步骤：
将纤维编织布按照设计厚度和铺层设计进行铺设；
按照折纸的设计方法对所述纤维编织布进行第一区域(1)和第二区域(2)划分，并按照设计需求设定多个第一区域(1)尺寸和第二区域(2)尺寸；其中第二区域(2)的宽度等于两倍的板设计厚度；
将第一区域(1)的纤维编织布浸渍树脂固化，第二区域(2)的纤维编织布不浸渍树脂；待树脂固化成型后即完成可折型FRP板的制作。
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