这项研究旨在评估香蕉车前草茎纤维(BPSF)作为复合材料和土工布中使用的绳索和织物的原料的潜力。通过生物缓凝获得纤维,通过三股捻获得用于土工布编织的绳索,以优化地柄的机械性能。热,物理,为了评估提取工艺对纤维性能的影响,对纤维的化学和力学特性进行了研究。此外,使用扫描电子显微镜(SEM)分析了纤维和绳索的微观结构,结果强调了平行于纤维轴的纤维素微纤维和通过木质素基质连接的半纤维素的存在。这些成分被组织成围绕管腔的三个同心层。使用X射线能量色散(EDS)进行元素化学分析,使用Jayme-Wise协议进行傅里叶变换红外(FTIR)和化学解构以确定BPSF的化学成分,由51.5%的碳组成,47.07%的氧气和矿物盐可以在退化后高度促进土壤施肥。这些化学成分代表40%的纤维素,21.5%半纤维素,24%木质素,0.34%果胶,在BPSF中存在7.2%的唇溶性可萃取物和7.36%的水溶性糖。已经研究了BPSF的热性能,显示在200°C左右的初始降解。进行了物理分析和单轴拉伸测试,以确定地柄的多尺度物理和力学性能。使用Weibull分布的统计评估确定了物理和机械性能从最细尺度到宏观尺度的增长率。因此,从BPSF到绳索,纤度从42.5±4.5g/km增加到7983.4±132g/km,断裂伸长率从纤维的0.75±0.29mm增加到地球茎的52.42±18.91mm。单位面积质量1869g/m2,拉应力1281.05±273MPa,最大强度15.4±1.74kN/m,geostalk是一种可持续的机织织物,替代土工合成材料,用于土壤加固,作为其他有限寿命的土工布(geojute,土木和土木)。此外,纤维和绳索的热稳定性和高机械性能表明它们在复合材料中作为增强相的潜在应用。
This study aimed to assess the potential of banana-plantain stalk fibers (BPSF) as a raw material for ropes and fabrics used in composites and geotextiles. Fibers were obtained by Biological retting and ropes used for geotextile weaving were obtained by three-strand twisting in order to optimize the mechanical properties of geostalk. The thermal, physical, chemical and mechanical characteristics of the fibers were studied in order to assess the impact of the extraction process on fiber performance. In addition, the microstructure of fibers and ropes was analyzed using Scanning Electron Microscopy (SEM) and the results highlighted the presence of cellulose microfibrils parallel to fiber axis and hemicellulose linked by lignin matrix. These constituents are organized in three concentric layers around the lumen. Elementary chemical analyses using X-ray energy dispersion (EDS), Fourier Transform Infrared (FTIR) and chemical deconstruction using Jayme-Wise protocol were carried out to determine the chemical composition of BPSF, which consists of 51.5 % Carbon, 47.07 % Oxygen and mineral salts that can be highly contribute to soil fertilization after degradation. These chemical constituents represent 40 % cellulose, 21.5 % hemicellulose, 24 % lignin, 0.34 % pectin, 7.2 % lip soluble extractable and 7.36 % water-soluble sugars present in BPSF. Thermal properties of BPSF have been investigated showing the initial degradation around 200 °C. Physical analysis and uniaxial tensile testing were performed to determine the multi-scale physical and mechanical properties of geostalk. Statistical evaluation using Weibull distribution established an increasing rate of physical and mechanical properties from the finest scale to the macroscopic scale. Thus, from the BPSF to the ropes, titer increases from 42.5 ± 4.5 g/km to 7983.4 ± 132 g/km and elongation at break increases from 0.75 ± 0.29 mm for the fibers to 52.42 ± 18.91 mm for geostalk. With mass per unit area of 1869 g/m2, the tensile stress of 1281.05 ± 273 MPa and maximum strength of 15.4 ± 1.74 kN/m, geostalk is a sustainable woven fabric alternative to geosynthetics for soil reinforcement as other limited lifespan geotextiles (geojute, geocoir and geosisal). In addition, the thermal stability and high mechanical properties of fibers and ropes suggest their potential application as reinforced phases in composite materials.