热带作物学报2011，Vol.32Issue(9)：1760-1764,5.DOI:10.3969/j.issn.1000-2561.2011.09.037
微波干燥对天然橡胶硫化胶热氧老化性能的影响
The Influence of Microwave Drying on Thermal-oxidation Ageing Properties of Nature Rubber Vulcanized
摘要
Abstract
The thermal -oxidation ageing properties of nature rubber vulcanized dried by three methods was studied. TC and DTG was used to determine the thermal-oxidation degradation temperature in air atmosphere and thermal degradation active energy in N2 atmosphere using Coats-Redfern equation; the frequency sweep was used to estimate the ageing resistance of nature rubber vulcanized at strain of 0.5, also, the mechanical properties of rubber vulcanized was tested before and after ageing. Showed from the results, the mechanical properties of NR dried by microwave was higher than the hot -air drying and nature drying; the increasing value of tanS in frequency sweep was larger than the other drying methods; the degradation active energy dried by microwave was 9 kj/mol bigger than hot-air drying, so, the thermal stability of nature rubber dried by microwave was remarkably improved compared with the other two drying methods.关键词
微波干燥/天然橡胶/热氧老化Key words
Microwave drying/ Nature rubber/ Thermal-oxidation ageing分类
化学化工引用本文复制引用
张福全,陈美,王永周,廖建和,黄茂芳..微波干燥对天然橡胶硫化胶热氧老化性能的影响[J].热带作物学报,2011,32(9):1760-1764,5.基金项目
国家自然科学基金资助项目(No.50663003) （No.50663003）
现代农业产业技术体系建设专项资金资助项目(No.CARS-34-GW9) （No.CARS-34-GW9）
海南省自然 科学基金资助项目(No.510213). （No.510213）
