PU/有机蒙脱土纳米复合材料的制备和性能研究 |
Preparation and characterization of PU/organomontmorillonite nano-composite |
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DOI: |
中文关键词: PU 有机蒙脱土 纳米复合材料 原位插层聚合法 |
英文关键词: PU organomontmorillonite nano-composite in-situ intercalative polymerization |
基金项目:河南省杰出人才创新基金资助项目(0121002000) |
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中文摘要: |
采用原位插层聚合法制备PU/有机蒙脱土(OMMT)纳米复合材料。通过X射线衍射和透射电镜分析发现,当OMMT质量分数为0.01和0.03时,OMMT完全剥离并较均匀地分散于PU基体中;当OMMT质量分数为0.05时,OMMT在PU基体中发生部分剥离。热重分析表明,加入OMMT可提高复合材料的耐热性。动态力学分析表明,OMMT对PU模量的影响不大。PU/OMMT复合材料的硬度、弹性模量、拉伸强度和拉断伸长率均比纯PU有所提高。 |
英文摘要: |
A PU/organomontmorillonite nano-composite(OMMT) was prepared by in-situ intercalative polymerization.It was found by XRD and TEM analysis that OMMT was completely exfoliated and uniformly dispersed in PU matrix in case of 1% OMMT/PU and 3% OMMT/PU composites.The analysis showed that the heat resistance of the nano-composite improved by adding OMMT.It was indicated by dynamic mechanical analysis that OMMT had little effect on the modulus of PU.All the hardness,elastic modulus,tensile strength and elongation at break of the PU/OMMT nano-composite were higher than those of PU compound. |
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