CN113478861A - 一种可用于化学植筋的树脂基复合材料螺栓及其制备方法 - Google Patents
一种可用于化学植筋的树脂基复合材料螺栓及其制备方法 Download PDFInfo
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
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- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
本发明公开了一种可用于化学植筋的树脂基复合材料螺栓的制备方法，其过程包括将纤维增强预浸料卷至预定形状，放入模腔整体热压成型；预浸料固化后脱模，去除毛边后即可使用。本发明公开了上述可用于化学植筋的树脂基复合材料螺栓的制备方法，所得产品整体一次成型，同时兼顾了螺栓轴向强度、挂载强度、扭转强度及螺牙强度；产品耐疲劳性能及可靠性皆比金属化学植筋螺栓优越，适合批量化生产，应用前景广泛。
Description
技术领域
本发明涉及复合材料制备技术领域，尤其涉及一种可用于化学植筋的树脂基复合材料螺栓及其制备方法。
背景技术
化学植筋螺栓作为建筑上挂载荷载最常用的工具，受到广泛的使用。在沿海地区、高湿度或者有腐蚀性气氛环境中，普通的金属化学植筋螺栓的可靠性及耐久性就会大大降低。树脂基复合材料螺栓由于其具有绝佳的绝缘性、耐腐蚀性及抗疲劳性，同时兼具高强度，低密度等优越性能。在绝缘性要求较高、防腐性能要求较高的场合，或可靠性要求较高的场合，树脂基复合材料螺栓的优势性能会更加凸显。
本发明所提供产品解决了以上恶劣环境下高可靠性及耐久性的问题，对此类应用场景产品的使用性能起到了极大的提升作用。
发明内容
本发明的目的是为了解决现有技术中存在的缺点，而提出的一种可用于化学植筋的树脂基复合材料螺栓及其制备方法。本发明创造性地使用轴向卷制铺层，纤维径向及纬向分别平行和垂直于产品轴向，提高该化学植筋螺栓的轴向强度、挂载强度、扭转强度、螺牙强度；同时由于一次性整体成型的原因，制造周期短，工序简单，适合大批量生产，成本经济。
一种可用于化学植筋的树脂基复合材料螺栓，采用纤维增强环氧树脂预浸料一次模压成型而得。
优选地，纤维增强环氧树脂预浸料的原料包括：纤维织物、环氧树脂。
优选地，纤维织物采用无碱玻璃纤维、高强玻璃纤维、碳纤维、芳纶纤维、超高分子量聚乙烯纤维、玄武岩纤维中任一种纯编得到，或，采用无碱玻璃纤维、高强玻璃纤维、碳纤维、芳纶纤维、超高分子量聚乙烯纤维、玄武岩纤维中两种以上混编得到。
优选地，纤维织物形式包括：平纹布、斜纹布、单向布、连续毡、短切毡。
优选地，纤维织物的面密度为50-2000g/m2。
优选地，环氧树脂在纤维增强环氧树脂预浸料中所占质量百分比为35-45%。
上述可用于化学植筋的树脂基复合材料螺栓的制备方法，将纤维增强环氧树脂预浸料以卷制方式完成铺层后，120-180℃固化2-30min。
优选地，纤维增强环氧树脂预浸料以卷制方式进行铺层得到半成品，半成品的轴向为卷制轴向，纤维增强环氧树脂预浸料中纤维径向与半成品轴向平行，纤维增强环氧树脂预浸料中纤维纬向与半成品轴向垂直。
优选地，固化后修边。
本发明所得产品整体一次成型，同时兼顾了螺栓轴向强度、挂载强度、扭转强度及螺牙强度；产品耐疲劳性能及可靠性皆比金属化学植筋螺栓优越，适合批量生产，应用前景广泛。
附图说明
图1为本发明所得可用于化学植筋的树脂基复合材料螺栓的正视图。
图2为本发明所得可用于化学植筋的树脂基复合材料螺栓的正视剖视图。
其中，1、植筋部，2、螺牙部。
具体实施方式
下面结合具体实施例对本发明作进一步解说。
实施例1
将织物面密度为400g/m2的无碱玻纤方格布预浸料沿着径向卷成同心卷，直径为16mm，长度为180mm；放入模具模腔中150℃热压10min固化，取出后去除毛边后即可。
制品如图1和图2所示，总长度为180mm，植筋部分与螺牙部分分别为90mm，螺牙部分为M10。
按国家标准GB/T2570-1995测得制品的拉伸强度为627MPa，锚固力为20KN。
实施例2
将织物面密度为200g/m2的T300方格布预浸料沿着径向卷成同心卷，直径为14mm，长度为120mm；放入模具模腔中150℃热压10min后固化取出，取出后去除毛边后即可。
制品如图1和图2所示，总长度为120mm，植筋部分与螺牙部分分别为60mm，螺牙部分为M8。
按国家标准GB/T2570-1995测得制品的拉伸强度为1000MPa，锚固力为21KN。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。
Claims (8)
1.一种可用于化学植筋的树脂基复合材料螺栓，其特征在于，采用纤维增强环氧树脂预浸料一体模压成型而得。
2.根据权利要求1所述可用于化学植筋的树脂基复合材料螺栓，其特征在于，纤维增强环氧树脂预浸料的原料包括：纤维织物、环氧树脂。
3.根据权利要求2所述可用于化学植筋的树脂基复合材料螺栓，其特征在于，纤维织物采用无碱玻璃纤维、高强玻璃纤维、碳纤维、芳纶纤维、超高分子量聚乙烯纤维、玄武岩纤维中任一种纯编得到，或，采用无碱玻璃纤维、高强玻璃纤维、碳纤维、芳纶纤维、超高分子量聚乙烯纤维、玄武岩纤维中两种以上混编得到。
4.根据权利要求2所述可用于化学植筋的树脂基复合材料螺栓，其特征在于，纤维织物形式包括：平纹布、斜纹布、单向布、连续毡、短切毡。
5.根据权利要求2所述可用于化学植筋的树脂基复合材料螺栓，其特征在于，纤维织物的面密度为50-2000g/m2。
6.根据权利要求2所述可用于化学植筋的树脂基复合材料螺栓，其特征在于，环氧树脂在纤维增强环氧树脂预浸料中所占质量百分比为35-45%。
7.一种如权利要求1-6任一项所述可用于化学植筋的树脂基复合材料螺栓的制备方法，其特征在于，将纤维增强环氧树脂预浸料以卷制方式完成铺层后，120-180℃固化2-30min。
8.一种如权利要求1-6任一项所述可用于化学植筋的树脂基复合材料螺栓的制备方法，其特征在于，纤维增强环氧树脂预浸料以卷制方式进行铺层得到半成品，半成品的轴向为卷制轴向，纤维增强环氧树脂预浸料中纤维径向与半成品轴向平行，纤维增强环氧树脂预浸料中纤维纬向与半成品轴向垂直。
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| CN116572555A (zh) * | 2023-05-30 | 2023-08-11 | 东莞市麦星匠碳纤维科技有限公司 | 热固性碳纤维增强型复合材料螺丝的制备方法 |
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Application publication date: 20211008 |