反应型纳米碳酸钙补强NR的研究 |
Reinforcement of reactive nano-calcium carbonate to NR |
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DOI: |
中文关键词: 纳米碳酸钙 NR 改性 复合材料 耐热分解性能 |
英文关键词: nano-calcium carbonate NR modification composite thermolysis resistance |
基金项目:国家自然科学基金资助项目(50573021);广东省自然科学基金团队项目(39172) |
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中文摘要: |
采用具有反应性的改性剂,在纳米碳酸钙水悬浮液中进行改性,制备一种新型改性纳米碳酸钙(简称M-Ca)及其与NR的复合材料,对改性前后纳米碳酸钙的结构和形态进行分析,并对NR/纳米碳酸钙复合材料的结构和性能进行研究。结果表明,与未改性纳米碳酸钙相比,改性纳米碳酸钙的透过率下降,在正己烷中的分散性明显提高;NR/M-CaCO3复合材料具有良好的界面相容性和耐热分解性能、较高的交联密度以及优良的综合物理性能和耐老化性能,M-CaCO3的最佳用量为8份。 |
英文摘要: |
A new reactive nano-calcium carbonate (hereafter referred to M-CaCO3)was prepared by modifying nano-calcium carbonate in its water suspension with a reactive modifier and a NR/M-CaCO 3composite was made.The structures and morphologies of modified and unmodified nano-calciumcarbonates were analyzed,and the structure and properties of NR/M-CaCO3were investigated.The results showed that the permeability of M-CaCO3decreased by modification and its dispersion in n-hexaneimproved significantly and NR/MCaCO 3composite possessed good interfacial compatibility and thermolysis resistance,higher cross-link density,excellent comprehensive physical properties and aging properties,and the optimum addition level of M-CaCO3was 8 phr. |
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