| 引用本文: | 宁鑫,陈漫,陈晓浪,徐阳,阳乐,秦军.有机硅/可膨胀石墨复合阻燃PP/TPU共混物的研究[J].材料科学与工艺,2015,23(1):57-62.DOI:10.11951/j.issn.1005-0299.20150110. |
| NING Xin,CHEN Man,CHEN Xiaolang,XU Yang,YANG Le,QIN Jun.Study of PP/TPU composites with Si/EG[J].Materials Science and Technology,2015,23(1):57-62.DOI:10.11951/j.issn.1005-0299.20150110. |
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| 有机硅/可膨胀石墨复合阻燃PP/TPU共混物的研究 |
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宁鑫1,2,陈漫1,2,陈晓浪1,2,徐阳1,2,阳乐1,2,秦军3
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(1.材料先进技术教育部重点实验室(西南交通大学),成都 610031;2.西南交通大学 材料科学与工程学院, 成都 610031;3.贵州省喀斯特环境与地质灾害防治教育部重点实验室(贵州大学),贵阳 550003)
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| 摘要: |
| 为分析有机硅(Si)/可膨胀石墨(EG)对聚丙烯/热塑性聚氨酯/(PP/TPU)共混物性能的影响,通过差示扫描量热(DSC)、扫描电镜(SEM)、热重分析(TGA)、锥形量热仪(CONE)等表征方法对复合材料体系的结晶行为、热稳定性能、燃烧行为及残炭形貌特征进行了研究.结果表明:EG是一种有效的阻燃剂,能显著提高材料的阻燃性能；Si的存在对PP/TPU/EG复合材料有促进结晶作用,熔点增加,耐热性能得以提高,但Si的添加对复合材料体系的阻燃性能有一定的抑制作用,表明Si与EG复配在阻燃PP/TPU共混物时在阻燃效果上具有反协同效应. |
| 关键词: 聚丙烯 热塑性聚氨酯 可膨胀石墨 有机硅 阻燃 |
| DOI：10.11951/j.issn.1005-0299.20150110 |
| 分类号:TQ322.2 |
| 基金项目:国家自然科学基金资助项目(8,5)；全国大学生创新训练项目(201210613002)；中央高校基本科研业务费专项资金资助项目(SWJTU12CX009)；西南交通大学高层次人才项目"竢实之星"(2011)资助项目. |
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| Study of PP/TPU composites with Si/EG |
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NING Xin1,2, CHEN Man1,2, CHEN Xiaolang1,2,XU Yang1,2, YANG Le1,2, QIN Jun3
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(1.Key Laboratory of Advanced Technologies of Materials(Southwest Jiaotong University),Ministry of Education,Chengdu 610031,China; 2.School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; 3. Key Laboratory of Karst Environment and Geohazard Prevention(Guizhou University), Ministry of Education, Guiyang 550003, China)
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| Abstract: |
| To analyze the effect of organic silicone (Si) and expandable graphite (EG) on the properties of polypropylene/thermoplastic polyurethane (PP/TPU) ,the crystallization behavior, thermal stability, flammability and char morphology of the flame retardant composites were investigated by differential scanning calorimeter (DSC), scanning electron microscope (SEM), thermogravimetric analysis (TGA) and cone calorimeter test (CCT). The results indicated that EG was an efficient additive in improving the flammability of the polymer matrix. The crystallization temperature and thermal stability of PP/TPU/EG composites from DSC and TGA were improved due to the addition of Si with EG. However, the Si powder restrained the flame retardancy of the PP/TPU/EG composites, which indicated that there was an anti-synergistic effect on the flammability between the powdered Si resin modifiers and EG in the flame retardant PP/TPU composites. |
| Key words: polypropylene thermoplastic polyurethane expansible graphite organic silicone Flame retardancy |
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