Data set on Effect of Alkaline Treatment of Sisal Fiber on Mechanical property Reinforced Polyester Composite

The fibers reinforced polymer composites (FRPCs) are developed primarily using synthetic fibers. Currently synthetic fibers have serious drawbacks such as high cost, high density, poor recycling and non-biodegradable properties as compared to polymers composites. For these reasons, it needs to the extraction of natural fiber as replacement of synthetic fibers and as for reinforcement polymer composites from plants which is availability from renewable natural resources and the biodegradability of the natural plant fibers present a healthy ecosystem and low costs. The operational parameter (effect of NaOH concentration, soaking time and fiber to polyester ratio) for evaluating of mechanical properties (tensile strength bending strengths and water absorption on to raw and composite fiber were investigated. Preferred result for the desired purpose which have higher mechanical properties has been found as 44.003 MPa tensile strength and 50.81Mpa bending strength at optimum 30:70 fiber to polyester matrix ratio within 6 %NaOH at 48 hour, and the water absorption was lowered at 72 hour with 6% NaOH concentration and 20:80 fiber to polyester ratio which is 3.194%. Treated sisal fibers reinforced polyester composites were better mechanical properties and poor water absorption than untreated fiber.

纤维增强聚合物基复合材料（fibers reinforced polymer composites, FRPCs）主要以合成纤维为原料制备。当前，相较于聚合物基复合材料，合成纤维存在成本高昂、密度较大、回收性能不佳且不可生物降解等显著缺陷。基于上述原因，亟需从可再生自然资源来源的植物中提取天然纤维，以替代合成纤维用作聚合物基复合材料的增强体；天然植物纤维具备可生物降解特性，有助于构建健康生态系统且成本低廉。本研究探究了工艺参数（氢氧化钠（NaOH）浓度、浸泡时长、纤维与聚酯基体配比）及其对原纤维与复合纤维的力学性能（拉伸强度、弯曲强度）及吸水性能的影响。研究发现，适配目标需求的最优力学性能结果为：在6%氢氧化钠浓度、浸泡48小时、纤维与聚酯基体配比30:70的条件下，拉伸强度可达44.003 MPa，弯曲强度可达50.81 MPa；而当采用6%氢氧化钠浓度、浸泡72小时、纤维与聚酯基体配比20:80时，吸水率最低，为3.194%。经碱处理的剑麻纤维增强聚酯复合材料，其力学性能优于未处理的剑麻纤维复合材料，但吸水性能则更差。