摘要
以台农1号芒果为原料提取制备芒果种子纤维,对芒果种子茎须和芒果种子纤维表面形貌及表面元素能谱、热学性能等进行表征分析及测试研究,为芒果种子纤维增强复合材料的制备做准备。结果表明:芒果种子纤维的处理去除了纤维表面大部分的残留果肉、木质素,蜡质和果胶等,纤维外观粗糙,呈现明显的竖纹沟槽状。芒果种子茎须和芒果种子纤维的表面主要元素为C和O,原子百分比分别达到了56.63%、40.29%和75.15%、24.02%,此外还包含一定的Cl和Fe等元素。热分析表明二者热解均可分为游离水及物理吸附水的损失阶段、热解的初始阶段、热解的主要阶段以及缩聚阶段等4个阶段,芒果种子纤维中自由水、结晶水均变少,低温部分质量损失很少,热解主要阶段损失质量占的比例极大且集中在相对较小的温度范围,缩聚阶段质量损失较少且时间短。
The mango seed＇s fibers were made from the Tainong no.1mango.The surface topography SEM,surface elements spectrum and thermal performance were investigated and characterized which was prepared for the preparation of the mango seed＇s fiber reinforced composites.The results showed that,the fiber surface was rough with obvious vertical grooves,and most of the residual pulp,lignin,wax and pectin were removed.The main surface elements contents of mango seed＇s stem tassels and fibers were C and O elements,with the atom percentage of 56.63%,40.29% and 75.15%,24.02%,respectively.The surface of stem tassels and fibers also had some Cl and Fe elements.The pyrogenic decomposition process of the two above included the free water and physical adsorption water lost stage,the primary stage of the pyrogenic decomposition,the main pyrogenic decomposition stage and the polycondensation stage.The content of the free water and crystal water was reduced,the weight lost was little in the fibers under low temperature.The weight lost percentage was large,which was focused on a relatively small temperature range during the main pyrogenic decomposition stage.Meamwhile,The weight lost was little with very short time during the polycondensation stage.
出处
《化工新型材料》
CAS
CSCD
北大核心
2016年第4期211-213,共3页
New Chemical Materials
基金
安徽省高校自然基金重点项目(KJ2016A797)
地方高校国家级大学生创新创业训练计划项目(201310363063)
关键词
芒果种子纤维
表面元素
热性能
表征
分析研究
mango seed＇s fiber
surface element
thermal performance
characterization
research
