Tensile Properties of Flax Fibre Bundles with Graphene Oxide Coating

In the current datasheet, authors report the effect of graphene oxide treatment on tensile behaviour of single flax fibre bundles. As graphene oxide is hydrophilic with many hydroxyl functional groups, it is expected to bond with technical fibres and increase the stress transfer in a flax yarn. Graphene oxide (GO) aqueous dispersion with 1.2 wt % is prepared based on the modified Hummer’s method. GO is physically adsorbed on fibres by immersion of flax yarns into the aqueous dispersion for 24 hr. Fibres are dried at 80 C for 2 hr followed by 48 hr at 60 C. To differentiate between the effect of GO treatment and the potential loss in the tensile strength and tensile stiffness of fibres, authors report the data in 4 subclasses: As received flax yarns (dried at 60 C for 48 hr): labelled ‘as received’ Kept in deionised water for 30 min: tagged ’30 min’ Placed in deionised water for 24 hr: marked ’24 hr’ Flax fibres immersed in 1.2 wt % GO aqueous dispersion for 24 hr: labelled ‘GO’ Tensile test of single natural fibres is a challenging measurement. This is mainly due to the hierarchical and nonhomogenous structure of single fibres and difficulty in their extraction. The test methods are not standard, and the final data is very scattered. As an alternative method, we report the tensile properties of flax fibre bundles based on the impregnated fibre bundle test (IFBT) [1]. Materials and brief description of the methodology can be found in the datasheet under ‘method’ tab. Flax fibre bundles were extracted from AmpliTex 5009 flax fabrics kindly provided by Bcomp. The matrix was Epikote 828 LVEL epoxy resin with Dytek DCH-99 hardener. Impregnated fibre bundle tests were performed with Instron 5567 and 30 kN loadcell, with 120 mm gauge length and 4% min -1 strain rate. The strain was measured by a 50 mm clip-on extensometer. The abrasive paper was placed without glue in between the testing clamps and the samples. All samples were stored one week before test in a controlled environment of RH 50 % and 25 C. In the current datasheet, authors report the effect of graphene oxide treatment on tensile behaviour of single flax fibre bundles. As graphene oxide is hydrophilic with many hydroxyl functional groups, it is expected to bond with technical fibres and increase the stress transfer in a flax yarn. Graphene oxide (GO) aqueous dispersion with 1.2 wt % is prepared based on the modified Hummer’s method. GO is physically adsorbed on fibres by immersion of flax yarns into the aqueous dispersion for 24 hr. Fibres are dried at 80 C for 2 hr followed by 48 hr at 60 C. To differentiate between the effect of GO treatment and the potential loss in the tensile strength and tensile stiffness of fibres, authors report the data in 4 subclasses: As received flax yarns (dried at 60 C for 48 hr): labelled ‘as received’ Kept in deionised water for 30 min: tagged ’30 min’ Placed in deionised water for 24 hr: marked ’24 hr’ Flax fibres immersed in 1.2 wt % GO aqueous dispersion for 24 hr: labelled ‘GO’ Tensile test of single natural fibres is a challenging measurement. This is mainly due to the hierarchical and nonhomogenous structure of single fibres and difficulty in their extraction. The test methods are not standard, and the final data is very scattered. As an alternative method, we report the tensile properties of flax fibre bundles based on the impregnated fibre bundle test (IFBT) [1]. Materials and brief description of the methodology can be found in the datasheet under ‘method’ tab. Flax fibre bundles were extracted from AmpliTex 5009 flax fabrics kindly provided by Bcomp. The matrix was Epikote 828 LVEL epoxy resin with Dytek DCH-99 hardener. Impregnated fibre bundle tests were performed with Instron 5567 and 30 kN loadcell, with 120 mm gauge length and 4% min -1 strain rate. The strain was measured by a 50 mm clip-on extensometer. The abrasive paper was placed without glue in between the testing clamps and the samples. All samples were stored one week before test in a controlled environment of RH 50 % and 25 C.本数据集报告了氧化石墨烯（graphene oxide，GO）处理对单根亚麻纤维束拉伸性能的影响。由于氧化石墨烯具有亲水性且含有大量羟基官能团，其可与工业用纤维结合，提升亚麻纱线内的应力传递效率。 采用改良Hummers法制备质量分数为1.2 wt%的氧化石墨烯水分散液。将亚麻纱线浸入该水分散液中24小时，使GO通过物理吸附作用附着于纤维表面。随后将纤维于80℃干燥2小时，再于60℃干燥48小时。 为区分GO处理的效果与纤维拉伸强度、拉伸刚度的潜在损失，研究人员将数据分为4组： - 原始状态亚麻纱线（于60℃干燥48小时）：标记为「as received」（原始试样） - 置于去离子水中浸泡30分钟：标记为「30 min」（30分钟组） - 置于去离子水中浸泡24小时：标记为「24 hr」（24小时组） - 浸入1.2 wt% GO水分散液24小时的亚麻纤维：标记为「GO」（GO处理组） 单根天然纤维的拉伸测试极具挑战性，这主要源于单纤维的多级非均匀结构以及纤维提取难度较高。当前测试方法尚未标准化，最终实验数据离散性较强。作为替代方案，本研究采用浸渍纤维束测试（impregnated fibre bundle test，IFBT）[1]来表征亚麻纤维束的拉伸性能。实验材料与方法的简要说明可在数据集的「method」（方法）标签页中查看。 亚麻纤维束提取自Bcomp公司惠赠的AmpliTex 5009亚麻织物。基体采用添加Dytek DCH-99固化剂的Epikote 828 LVEL环氧树脂。 浸渍纤维束测试使用Instron 5567万能试验机与30 kN测力传感器进行，标距设置为120 mm，应变速率为4% min⁻¹。采用50 mm夹式引伸计测量应变。在测试夹具与试样之间放置无胶砂纸以防止滑移。所有试样于测试前在RH 50%、温度25℃的可控环境中存放一周。 本数据集再次报告了氧化石墨烯（graphene oxide，GO）处理对单根亚麻纤维束拉伸性能的影响。由于氧化石墨烯具有亲水性且含有大量羟基官能团，其可与工业用纤维结合，提升亚麻纱线内的应力传递效率。 采用改良Hummers法制备质量分数为1.2 wt%的氧化石墨烯水分散液。将亚麻纱线浸入该水分散液中24小时，使GO通过物理吸附作用附着于纤维表面。随后将纤维于80℃干燥2小时，再于60℃干燥48小时。 为区分GO处理的效果与纤维拉伸强度、拉伸刚度的潜在损失，研究人员将数据分为4组： - 原始状态亚麻纱线（于60℃干燥48小时）：标记为「as received」（原始试样） - 置于去离子水中浸泡30分钟：标记为「30 min」（30分钟组） - 置于去离子水中浸泡24小时：标记为「24 hr」（24小时组） - 浸入1.2 wt% GO水分散液24小时的亚麻纤维：标记为「GO」（GO处理组） 单根天然纤维的拉伸测试极具挑战性，这主要源于单纤维的多级非均匀结构以及纤维提取难度较高。当前测试方法尚未标准化，最终实验数据离散性较强。作为替代方案，本研究采用浸渍纤维束测试（impregnated fibre bundle test，IFBT）[1]来表征亚麻纤维束的拉伸性能。实验材料与方法的简要说明可在数据集的「method」（方法）标签页中查看。 亚麻纤维束提取自Bcomp公司惠赠的AmpliTex 5009亚麻织物。基体采用添加Dytek DCH-99固化剂的Epikote 828 LVEL环氧树脂。 浸渍纤维束测试使用Instron 5567万能试验机与30 kN测力传感器进行，标距设置为120 mm，应变速率为4% min⁻¹。采用50 mm夹式引伸计测量应变。在测试夹具与试样之间放置无胶砂纸以防止滑移。所有试样于测试前在RH 50%、温度25℃的可控环境中存放一周。