Effects of Different Modification Methods on the Properties of Sisal Fibers

ABSTRACT

In this paper, sisal fibers were modified by different methods such as alkali treatment, γ-aminopropyltriethoxysilane treatment, tetraethylorthosilicate (TEOS) sol-gel treatment, TEOS, and silane combination treatment. The effects of different modification methods on the properties of sisal fibers were studied by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and universal material testing machine. The results show that the combination treatment fiber has the best heat resistance and the most obvious improvement in tensile properties, the tensile strength and modulus increase by 31.58% and 15.82%, respectively.

摘要

本文采用碱处理、γ-氨基丙基三乙氧基硅烷处理、四乙基硅酸盐(TEOS)溶胶-凝胶处理、四乙基硅酸盐和硅烷复合处理等方法对剑麻纤维进行改性，研究了不同改性方法对剑麻纤维性能的影响。采用热重分析(TGA)、扫描电镜(SEM)、傅里叶变换红外光谱(FTIR)和万能材料试验机对剑麻纤维进行了表征,结果表明,复合处理纤维具有最好的耐热性,改善效果最明显。在拉伸性能方面，抗拉强度和模量分别提高31.58%和15.82%。

KEYWORDS:

• Tetraethylorthosilicate
• γ-aminopropyltriethoxysilane
• sisal fiber
• heat resistance
• tensile properties
• alkali treatment

关键词:

• 正硅酸四乙酯
• γ-氨基丙基三乙氧基硅烷
• 剑麻纤维
• 耐热性
• 拉伸性能
• 碱处理

Additional information

Funding

This research was supported by the National Natural Science Foundation of China [grant number 31300475]; and the Natural Science Foundation of Hebei Province [grant number E2016208083].