丙酮溶物对天然橡胶臭氧老化性能影响
|
摘要
天然橡胶中的非胶物质种类和含量影响橡胶的质量和应用性能。本文通过硫化性能、交联密度、耐臭氧老化性能测试和热重分析研究丙酮溶物含量对天然橡胶臭氧老化性能的影响。结果表明,丙酮溶物可以改善天然橡胶的硫化性能,提高其交联密度。随着丙酮溶物添加量的增加,天然橡胶的热稳定性、臭氧裂纹显现时间、拉伸强度保持率逐渐提高并达到最大值。采用衰减全反射傅里叶红外光谱分析仪(ATR-FTIR)分析了天然橡胶臭氧老化前后分子结构变化,可知橡胶在臭氧老化后出现了氧化官能团。
The types and content of non-rubber substance in natural rubber affect the quality and application properties. The aims of this study are to investigate the effect of acetone extract(AE) content on the ozone aging properties of natural rubber by tests of the vulcanization behaviour, crosslink density, ozone-resistance and thermal analysis. Results showed that both the improvement of vulcanization behaviour and the increases of crosslink density were attributed to AE. The thermal stability, the cracking time and the maintain rate of tensile strength of natural rubber gradually increased when the acetone extract increased. Furthermore, the structure of natural rubber molecular chains before and after ozone aging were characteristed by attenuated total reflectance Fourier transform infrared spectroscopy(ATR-FTIR). There was oxidation functional group after ozone aging natural rubber molecular chains in FTIR.
The types and content of non-rubber substance in natural rubber affect the quality and application properties. The aims of this study are to investigate the effect of acetone extract(AE) content on the ozone aging properties of natural rubber by tests of the vulcanization behaviour, crosslink density, ozone-resistance and thermal analysis. Results showed that both the improvement of vulcanization behaviour and the increases of crosslink density were attributed to AE. The thermal stability, the cracking time and the maintain rate of tensile strength of natural rubber gradually increased when the acetone extract increased. Furthermore, the structure of natural rubber molecular chains before and after ozone aging were characteristed by attenuated total reflectance Fourier transform infrared spectroscopy(ATR-FTIR). There was oxidation functional group after ozone aging natural rubber molecular chains in FTIR.
引文
[1]Razumovsky S D,Podmasteriyev V V,Zaikov G.Kinetics of the growth of cracks on polyisoprene vulcanizates in ozone[J].Polymer Degradation and Stability,1986,16(4):317-324.
[2]Magaraphan R,Pongpilaipruet A.Synthesis,characterization and degradation behavior of admicelled polyacrylate-natural rubber[J].Materials Chemistry and Physics,2015,160:194-204.
[3]Itoh Y,Gu H S.Prediction of aging characteristics in natural rubber bearings used in bridges[J].Journal of Bridge Engineering,2009,14(2):122-128.
[4]刘高君.橡胶阻尼材料的老化行为与寿命预测研究[D].青岛:青岛科技大学,2013.
[5]陈琅.品系和时间对天然橡胶臭氧老化性能影响[D].海口:海南大学,2016.
[6]蔡克平,李普旺,刘元,等.蛋白质含量对天然橡胶性能的影响[J].橡胶科技,2014,12(2):18-22.
[7]赵同建,陆应梅,陈莉,等.天然胶乳中的蛋白质对其热老化性能的影响研究[J].化学工程师,2008(9):1-3.
[8]范龙飞.天然橡胶水溶物的提取、分析及其对天然橡胶的影响[D].海口:海南大学,2013.
[9]布歇,卡尔利埃.非橡胶成份对生胶老化的影响[J].顾之翰,译.热带作物译丛,1966(1):32-39.
[10]袁天元,廖双泉,赵艳芳,等.锰离子对天然橡胶老化性能的影响[J].热带作物学报,2017,38(4):716-722.
[11]李志军.天然橡胶的分析与实验[M].北京:中国农业大学出版社,2007.
[12]王奎,廖建和,廖禄生,等.蛋白质对天然橡胶硫化动力学的影[J].弹性体,2012,22(6):15-18.
[13]Nor H M,Ebdon J R.Ozonolysis of natural rubber in chloro form solution Part 1.A study by GPC and FTIR spectroscopy[J].Polymer,2000,41(7):2 359-2 365.
[14]游长江.橡胶工业手册:试验与检验[M].北京:化学工业出版社,2011.
[15]吕飞杰,梅同现,黎沛森.用力学-红外光谱法研究非胶组分对天然橡胶硫化胶拉伸诱导结晶的影响[J].热带作物学报,1987(2):35-42.
[16]Hasma H,Othman A B.Role of some non-rubber constituents on oxidative ageing of natural rubber[J].Journal of Natural Rubber Research,1990(5):1.
[17]Adcox C,Boyd L,Oehrl L,et al.Comparative effects of phytosterol oxides and cholesterol oxides in cultured macrophage-derived cell lines[J].Journal of Agricultural and Food Chemistry,2001,49(4):2 090-2 095.
[18]Bortolomeazzi R,Cordano F,Pizzale L,et al.Presence of phytosterol oxides in crude vegetable oils and their fate during refining[J].Journal of Agricultural and Food Chemistry,2003,51(8):2 394-2 401.
[19]Grandgirard A,Martine L,Joffer C,et al.Gas chromatographic separation and mass spectrometric identification of mixtures of oxyphytosterol and oxycholesterol derivatives application to a phytosterol-enriched food[J].Journal of Chromatography A,2004,1 040(2):239-250.
[20]王兵兵,黄桂春,陈永平,等.不同生产工艺对天然橡胶臭氧老化性能与结构的影响[J].热带作物学报,2015,36(7):1 342-1 347.
[21]陈媛媛,赵同建,符新.非胶物质对天然橡胶硫化性能的影响[J].弹性体,2010,20(2):36-39.
[22]Xu T,Jia Z,Wu L,et al.Influence of acetone extract from natural rubber on the structure and interface interaction in NR/silica composites[J].Applied Surface Science,2017,423:43-52.
[2]Magaraphan R,Pongpilaipruet A.Synthesis,characterization and degradation behavior of admicelled polyacrylate-natural rubber[J].Materials Chemistry and Physics,2015,160:194-204.
[3]Itoh Y,Gu H S.Prediction of aging characteristics in natural rubber bearings used in bridges[J].Journal of Bridge Engineering,2009,14(2):122-128.
[4]刘高君.橡胶阻尼材料的老化行为与寿命预测研究[D].青岛:青岛科技大学,2013.
[5]陈琅.品系和时间对天然橡胶臭氧老化性能影响[D].海口:海南大学,2016.
[6]蔡克平,李普旺,刘元,等.蛋白质含量对天然橡胶性能的影响[J].橡胶科技,2014,12(2):18-22.
[7]赵同建,陆应梅,陈莉,等.天然胶乳中的蛋白质对其热老化性能的影响研究[J].化学工程师,2008(9):1-3.
[8]范龙飞.天然橡胶水溶物的提取、分析及其对天然橡胶的影响[D].海口:海南大学,2013.
[9]布歇,卡尔利埃.非橡胶成份对生胶老化的影响[J].顾之翰,译.热带作物译丛,1966(1):32-39.
[10]袁天元,廖双泉,赵艳芳,等.锰离子对天然橡胶老化性能的影响[J].热带作物学报,2017,38(4):716-722.
[11]李志军.天然橡胶的分析与实验[M].北京:中国农业大学出版社,2007.
[12]王奎,廖建和,廖禄生,等.蛋白质对天然橡胶硫化动力学的影[J].弹性体,2012,22(6):15-18.
[13]Nor H M,Ebdon J R.Ozonolysis of natural rubber in chloro form solution Part 1.A study by GPC and FTIR spectroscopy[J].Polymer,2000,41(7):2 359-2 365.
[14]游长江.橡胶工业手册:试验与检验[M].北京:化学工业出版社,2011.
[15]吕飞杰,梅同现,黎沛森.用力学-红外光谱法研究非胶组分对天然橡胶硫化胶拉伸诱导结晶的影响[J].热带作物学报,1987(2):35-42.
[16]Hasma H,Othman A B.Role of some non-rubber constituents on oxidative ageing of natural rubber[J].Journal of Natural Rubber Research,1990(5):1.
[17]Adcox C,Boyd L,Oehrl L,et al.Comparative effects of phytosterol oxides and cholesterol oxides in cultured macrophage-derived cell lines[J].Journal of Agricultural and Food Chemistry,2001,49(4):2 090-2 095.
[18]Bortolomeazzi R,Cordano F,Pizzale L,et al.Presence of phytosterol oxides in crude vegetable oils and their fate during refining[J].Journal of Agricultural and Food Chemistry,2003,51(8):2 394-2 401.
[19]Grandgirard A,Martine L,Joffer C,et al.Gas chromatographic separation and mass spectrometric identification of mixtures of oxyphytosterol and oxycholesterol derivatives application to a phytosterol-enriched food[J].Journal of Chromatography A,2004,1 040(2):239-250.
[20]王兵兵,黄桂春,陈永平,等.不同生产工艺对天然橡胶臭氧老化性能与结构的影响[J].热带作物学报,2015,36(7):1 342-1 347.
[21]陈媛媛,赵同建,符新.非胶物质对天然橡胶硫化性能的影响[J].弹性体,2010,20(2):36-39.
[22]Xu T,Jia Z,Wu L,et al.Influence of acetone extract from natural rubber on the structure and interface interaction in NR/silica composites[J].Applied Surface Science,2017,423:43-52.