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

天然纤维由于其机械性能已成为复合材料开发中的重要组成部分。性能受环境条件和加工技术的影响很大。这种可变性使它们在增强中的可用性无法预测。有令人满意的尝试来量化性质随环境条件的变化。但是，对性质如何随加工方法变化的量化并不令人满意。因此，这项研究使用raspador来调查和量化加工变量对剑麻纤维特性的影响。raspador被设计，制造并用于处理剑麻纤维。研究了加工变量，例如间隙尺寸，提取和刷牙数量以及转鼓速度。机械性能是根据ASTM C1557标准确定的。在纤维性能和加工变量之间发现高相关系数。在许多情况下，通常被忽略的刷牙过程改善了剑麻纤维的性能。