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摘要
采用有机粘土(OC)填充溴化丁基橡胶(BIIR)制备OC/BIIR纳米复合材料(BIIRCNs),研究了OC用量对BIIRCNs的动态加工性能、气体阻隔性能、微观相态和力学性能的影响。结果表明:振幅扫描测试时,OC含量越高,OC/BIIR混炼胶的Payne效应越明显,剪切变稀的行为越明显,但损耗因子的值越低;频率扫描测试时,OC含量越高,OC/BIIR混炼胶的储能模量越大,剪切变稀的行为越明显,损耗因子的值越低;OC均匀分布在BIIR基体中,使复合材料的气体阻隔性能和力学性能提高,当OC为10份时,BIIRCNs气体透过系数较纯BIIR下降76.5%,当OC为5份时,BIIRCNs的拉伸强度较纯BIIR提高142%。
Abstract
Preparation of OC/BIIR nanocomposites(BIIRCNs) by filling brominated butyl rubber (BIIR) with organic clay(OC).The dynamic machining performance,gas barrier properties,dispersed phase and mechanical properties of BIIRCNs with different copies of OC were studied.Results shown that:during the amplitude scanning test,the higher the OC content,the more obvious the Payne effect of the OC/BIIR mixture,the more obvious the shear thinning behavior,but the lower the value of the loss factor.During frequency scanning test,the higher the OC content,the greater the energy storage modulus of the OC/BIIR mixture,the more obvious the behavior of shearing thinning,and the lower the value of the loss factor.OC was evenly distributed in the BIIR Matrix,which improved the gas barrier properties and mechanical properties of the composites.When OC was 10phr,the BIIRCNs gas transmission coefficient decreased by 76.5% compared to pure BIIR.When OC was 5phr,the tensile strength of BIIRCNs was 142% higher than that of pure BIIR.
关键词
有机粘土
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溴化丁基橡胶
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动态加工性能
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气体阻隔性
Key words
organic clay
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brominated butyl rubber
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dynamic machining performance
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gas barrier property
有机粘土/溴化丁基橡胶纳米复合材料的动态加工性能与气体阻隔性能研究[J].
化工新型材料, 2020, 48(6): 130-133 DOI:
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基金资助
国家自然科学基金(51573124);山西省“1331工程”重点学科建设计划经费资助项目(2015)
