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当前位置: 首页 > 文章 > 改性条件对凹凸棒石/魔芋葡甘聚糖复合材料力学性能的影响 食品科学 2015,36 (21) 85-89
Position: Home > Articles > Influence of Modification Conditions for Attapulgite on Properties of Modified Attapulgite-Konjac Glucomannan Composites FOOD SCIENCE 2015,36 (21) 85-89

改性条件对凹凸棒石/魔芋葡甘聚糖复合材料力学性能的影响

作  者：
胡盛;杨眉;周红艳;杨艳;田大听;张升晖
单  位：
湖北民族学院化学与环境工程学院;中国地质大学纳米矿物材料及应用教育部工程研究中心;武汉理工大学材料复合新技术国家重点实验室;湖北民族学院生物资源保护与利用湖北省重点实验室
关键词：
魔芋葡甘聚糖;凹凸棒石;改性;复合材料
摘  要：
以魔芋葡甘聚糖(konjac glucomannan,KGM)为基体,用硅烷偶联剂KH-570(γ-(甲基丙烯酰氧)丙基三甲氧基硅烷)对凹凸棒石改性后,采用溶液共混法制备改性凹凸棒石/魔芋葡甘聚糖复合材料。探讨改性凹凸棒石用量、KH-570用量、改性时间和改性温度对复合材料力学性能的影响。力学性能测试结果表明:魔芋葡甘聚糖和改性凹凸棒石共混明显改善了复合材料的力学性能。当改性凹凸棒石用量为魔芋葡甘聚糖用量的6%(质量分数,下同)、KH-570用量为凹凸棒石用量的2%、改性时间为35 min、改性温度为60℃时,改性凹凸棒石/魔芋葡甘聚糖复合材料的综合力学性能最好。傅里叶变换红外光谱(Fourier transform-infrared spectra,FT-IR)和扫描电子显微镜(scanning electron microscopy,SEM)测试分析结果表明:复合材料中魔芋葡甘聚糖和改性凹凸棒石之间存在强烈的相互作用和良好的相容性。
译  名：
Influence of Modification Conditions for Attapulgite on Properties of Modified Attapulgite-Konjac Glucomannan Composites
作  者：
HU Sheng;YANG Mei;ZHOU Hongyan;YANG Yan;TIAN Dating;ZHANG Shenghui;Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities;School of Chemical and Environment Engineering, Hubei University for Nationalities;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology;Engineering Research Center of Nano-Geomaterials of Ministry of Education,China University of Geosciences;
关键词：
konjac glucomannan;;attapulgite;;modification;;composites
摘  要：
Attapulgite(AT) modified with KH-570 was dispersed into konjac glucomannan(KGM) matrix to obtain modified AT-KGM composites through a blending method. Effects of modified attapulgite amount, modifying agent KH-570 amount, modification time and modification temperature on the properties of composites were investigated. The mechanical properties of the modified AT-KGM composites were noticeably improved by combining modified AT with KGM and optimized by incorporating 6%(by weight) of the attapulgite modified with 2%(by weight) KH-570 at 60 ℃ for 35 min to KGM. KGM composites with native or modified AT were characterized by Fourier transform infrared(FT-IR) spectroscopy and scanning electron microscopy(SEM). The results indicated that the FT-IR characteristic peaks of the modified AT-KGM composite was observed, and the mechanical performance of composites was improved due to the strong interaction between konjac glucomannan and modified attapulgite.

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