An investigation of the effects of extraction and brushing variables on the properties of hedge sisal fibers using a raspador

ABSTRACT

Natural fibers have emerged as an important component in the development of composite materials because of their mechanical properties. The properties are highly influenced by environmental conditions and processing techniques. This variability makes their usability in reinforcement unpredictable. There are satisfactory attempts to quantify the variation of the properties with environmental conditions. However, the quantification of how the properties vary with processing methods is unsatisfactory. This study, therefore, investigated and quantified the effects of processing variables on the properties of sisal fibers using a raspador. The raspador was designed, fabricated, and utilized in processing sisal fibers. Processing variables such as gap size, number of extraction and brushing elements, and drum speed were investigated. The mechanical properties were determined based on ASTM C1557 standard. High correlation coefficients were found between fiber properties and the processing variables. The brushing process, mostly ignored in many cases, improved the properties of the sisal fibers.

摘要

天然纤维因其优异的力学性能而成为复合材料发展的重要组成部分. 其性能受环境条件和加工工艺的影响很大. 这种可变性使得它们在加固中的可用性无法预测. 有令人满意的尝试，以量化的变化与环境条件的性质. 然而，量化的性质如何随加工方法的变化是不令人满意的. 因此，本研究以剑麻纤维为研究对象，利用拉斯帕刀，探讨并量化了不同加工参数对剑麻纤维特性的影响. 设计、制造并应用于剑麻纤维加工. 研究了间隙大小、萃取和刷洗元件的数量以及滚筒转速等工艺参数. 力学性能按ASTM C1557标准测定. 纤维性能与加工变量之间有很高的相关系数. 在许多情况下，刷毛工艺往往被忽略，从而改善了剑麻纤维的性能.

KEYWORDS:

• Brushing
• extraction
• fiber properties
• raspador
• sisal
• variation

关键词:

• 疾驰的
• 提取
• 纤维性能
• 拉斯帕多
• 剑麻
• 变异

Acknowledgments

There are no acknowledgments at this point.

Declaration of interest statement

The authors declare that there are no conflicts of interest that could have influenced the work reported in this paper.

Data availability statement

The primary data for the analysis and presentation of the findings in this study are available from the corresponding author upon reasonable request.

Notes

1. Arid and Semi-Arid Lands.

2. The angle microfibrils make with the axis of the fiber.

3. A small-scale machine for scraping the fiber of henequen or sisal.

4. Sisal grown along the hedges of farms for demarcation.

5. Brushing element consisted of a steel blade with 25 steel comping pins, 2 mm diameter and evenly spot welded.

6. The ratio of average fiber length to the original leaf length.

7. Unwashed hand decorticated sisal.

8. Under grade.