| β-羟基丁酸与β-羟基戊酸共聚物 (PHBV)/蒙脱土纳米复合材料的结构与性能 |
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| 引用本文： | 陈广新,郝广杰,郭天瑛,宋谋道,张邦华. β-羟基丁酸与β-羟基戊酸共聚物 (PHBV)/蒙脱土纳米复合材料的结构与性能[J]. 离子交换与吸附, 2002, 18(6): 481-486 |
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| 作者姓名： | 陈广新 郝广杰 郭天瑛 宋谋道 张邦华 |
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| 作者单位： | 南开大学高分子化学研究所,吸附分离功能高分子材料国家重点实验室,天津,300071 |
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| 摘 要： | 用溶液复合法成功地制备了插层型PHBV／蒙脱土纳米复合材料。采用X射线衍射（XRD）和透射电子显微镜（TEM）研究了复合材料的结构，硅酸盐片层间距从1.8nm升至2.4nm左右。同时研究了复合材料的结晶，熔融，动态力学行为和力学性能，发现有机蒙脱土的加入，可以加快PHBV的结晶,降低熔融温度，使基体的玻璃化转变温度升高，提高了材料的力学性能，有机蒙脱土含量在3％时，其综合性能最佳。
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| 关 键 词： | β－羟基丁酸 β－羟基戊酸 共聚物 结构 纳米复合材料 蒙脱土 PHBV 溶液复合法 性能 |
| 文章编号： | 1001-5493(2002)06-0481-06 |
| 修稿时间： | 2002-09-03 |
STRUCTURE AND PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE) (PHBV)/OMMT NANOCOMPOSITES |
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| CHEN Guangxin HAO Guangjie GUO Tianying SONG Moudao ZHANG Banghua State Key Lab of Functional Polymer Materials for Adsorption and separation. STRUCTURE AND PROPERTIES OF POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE) (PHBV)/OMMT NANOCOMPOSITES[J]. Ion Exchange and Adsorption, 2002, 18(6): 481-486 |
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| Authors: | CHEN Guangxin HAO Guangjie GUO Tianying SONG Moudao ZHANG Banghua State Key Lab of Functional Polymer Materials for Adsorption and separation |
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| Affiliation: | CHEN Guangxin HAO Guangjie GUO Tianying SONG Moudao ZHANG Banghua State Key Lab of Functional Polymer Materials for Adsorption and separation,Institute of Polymer Chemistry,Nankai University,Tianjin 300071,China |
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| Abstract: | Poly(3-hydroxybutyrate-co-3hydroxyvalerate) (PHBV)/OMMT nanocomposites were prepared by mixing of PHBV and organically modified montmorillonite (OMMT) as a type of layered OMMTs with chloroform. OMMT was prepared by surface treatment of montmorillonite (MMT) with hexadecyl-trimethylamine bromide. XRD and TEM results indicated that the PHBV chains intercalated OMMT layers and the intercalated nanocomposites were obtained. The thermal and dynamic viscoelastic properties of nanocomposites were investigated using a differential DSC and DMA. It is found that the OMMT in the nanocomposites accelerate the crystallization of PHBV as the effect of nuclei and decrease its melting temperature. The glass transition temperatures of the PHBV/OMMT are higher than that of the original PHBV. Tensile properties measurements of PHBV/OMMT hybrids indicate that the addition of 3wt% of OMMT increases the tensile strength of 35.6MPa, which is 32% higher than that of the original PHBV. |
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| Keywords: | Nanocomposite Montmorillonite PHBV. |
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