Begum Most Setara, Kader Abdul, Milašius Rimvydas
Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu Str. 56, LT-51424 Kaunas, Lithuania.
Department of Textile Engineering, BGMEA University of Fashion and Technology, Dhaka 1230, Bangladesh.
Polymers (Basel). 2023 Jun 2;15(11):2563. doi: 10.3390/polym15112563.
Jute is a ligno-cellulosic natural fiber that ranks second in terms of the volume of cellulosic fibers and is extensively utilized for technical textile applications. The goal of this study is to determine the flame-retardance (FR) properties of pure Jute and Jute-Cotton fabrics treated with Pyrovatex CP New at concentrations of 90% (owf), M:L: 1:7. Both fabrics exhibited a substantial improvement in flame-retardancy. After the ignition period, the recorded flame spread time in both FR treated fabrics was zero seconds; whereas for untreated Jute and Jute-Cotton fabrics, the flame spread time was measured 21 s and 28 s, respectively, to burn their entire length (15 cm). Within these flame-spread times, the length of the char was 2.1 cm and 2.57 cm in the Jute and Jute-Cotton fabrics, respectively. After FR finishing, on both fabrics in the warp and weft directions, the physico-mechanical properties significantly decreased. The deposition of flame-retardant finishes on the fabric surface was determined by Scanning Electron Microscope (SEM) images. According to Fourier Transform Infra-Red Spectroscopy (FTIR) analysis, the flame-retardant chemical had no effect on the inherent properties of the fibers. Thermogravimetric analysis (TGA) analysis revealed that FR treated fabrics had early degradation, resulting in the formation of more char than in the untreated samples. After FR treatment, both fabrics showed a significant improvement in residual mass (more than 50%). Although the formaldehyde content observed in the FR treated samples was significantly greater, it was still within the permitted limit formaldehyde content in textiles intended for outerwear and not worn next to the skin. The results of this investigation demonstrate the potential use of Pyrovatex CP New in jute-based materials.
黄麻是一种木质纤维素天然纤维，就纤维素纤维的产量而言排名第二，被广泛用于工业纺织应用。本研究的目的是确定用浓度为90%（owf）、浴比为1:7的新型Pyrovatex CP处理的纯黄麻和黄麻-棉织物的阻燃性能。两种织物的阻燃性都有显著提高。点火后，两种经阻燃处理的织物记录的火焰蔓延时间均为零秒；而对于未处理的黄麻和黄麻-棉织物，测量其燃烧全长（15厘米）的火焰蔓延时间分别为21秒和28秒。在这些火焰蔓延时间内，黄麻和黄麻-棉织物的炭化长度分别为2.1厘米和2.57厘米。阻燃整理后，两种织物的经纬向物理机械性能均显著下降。通过扫描电子显微镜（SEM）图像确定了织物表面阻燃整理剂的沉积情况。根据傅里叶变换红外光谱（FTIR）分析，阻燃化学品对纤维的固有性能没有影响。热重分析（TGA）表明，经阻燃处理的织物降解较早，导致形成的炭比未处理样品更多。阻燃处理后，两种织物的残余质量均有显著提高（超过50%）。尽管在经阻燃处理的样品中观察到的甲醛含量显著更高，但仍在用于外套且不贴身穿着的纺织品允许的甲醛含量范围内。本研究结果表明新型Pyrovatex CP在黄麻基材料中具有潜在用途。
