| 组成及MPEG用量对PPC/PBS共混物性能的影响 |
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| 引用本文： | 黄志洪,全志龙.组成及MPEG用量对PPC/PBS共混物性能的影响[J].广州化工,2012,40(8):82-84. |
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| 作者姓名： | 黄志洪 全志龙 |
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| 作者单位： | 华侨大学材料科学与工程学院,福建厦门,361021 |
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| 基金项目： | 泉州市科技项目，中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 考察了组成和MPEG-2000的质量分数对PBS/PPC力学性能及热性能的影响。结果显示,PPC的引入使得共混物的冲击/拉伸强度明显降低;MPEG质量分数为5%时(PBS/PPC=80/20),拉伸强度和冲击强度分别达到18.9 MPa和20.3 kJ/m2。SEM对断裂面的观察表明:MPEG的引入能引发基体材料的塑性形变,冲击断面具有明显的脆韧转变特征。示差扫描量热分析(DSC)的结果表明:PPC的质量分数从0增加到30%,共混物结晶峰温度从79.3℃降低到61.3℃,结晶焓减小且过冷度增大。
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| 关 键 词： | 聚丁二酸丁二醇酯(PBS) 聚碳酸丙撑酯(PPC) 脆韧转变 结晶焓变 |
Influence of the Composition and MPEG Content on the Properties of PBS/PPC |
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| HUANG Zhi-hong,QUAN Zhi-long.Influence of the Composition and MPEG Content on the Properties of PBS/PPC[J].GuangZhou Chemical Industry and Technology,2012,40(8):82-84. |
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| Authors: | HUANG Zhi-hong QUAN Zhi-long |
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| Affiliation: | HUANG Zhi - hong , QUAN Zhi - long ( College of Materials Science and Engineering, Huaqiao University, Fujian Xiamen 361021, China) |
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| Abstract: | Influences of the composition and fraction of MPEG -2000 on the properties of PBS/PPC were investiga- ted. It was found that the tensile strength and impact strength of the blends significantly were reduced by the introduction of PPC. With 5% MPEG, the strength of tensile and impact of PBS/PPC（80/20） reached 18.9 MPa and 20.3 KJ/m2, respectively. SEM observation demonstrated that the MPEG could facilitate the brittle -ductile transition arise from stress concentration. DSC shows that the melting temperatures of blends reduced from 79.3 ℃ to 61.3 ℃ and the crystallization enthalpy （ △AHc） was decreased. |
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| Keywords: | poly ( butylene succinate) (PBS) poly ( propylene carbonate) ( PPC ) brittle - ductile transition crys-tallization enthalpy ( △Hc ) |
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