期刊文献+

不同预处理酶解木质素对丁腈橡胶的补强性能研究 被引量:5

Effects of Different Pretreated Enzymatic Hydrolysis Lignins on Reinforcement of Acrylonitrile Butadiene Rubber
在线阅读 下载PDF
导出
摘要 采用球磨、喷雾干燥、气流粉碎三种方法分别对酶解木质素(EHL)进行预处理,考察其对丁腈橡胶(NBR)的补强性能影响。结果表明,EHL经气流粉碎预处理后的堆积密度最小(0.3329 g·cm-3),其在NBR基质中的分散粒径最细(约为2.5μm)且最均匀,对NBR的补强效果也最好。硫化胶的综合力学性能方面,气流粉碎预处理方法明显优于球磨法和喷雾干燥法。当EHL的用量为40质量份(phr)时,气流粉碎的NBR/EHL硫化胶的拉伸强度比球磨法、喷雾干燥法分别高出24.44%、61.29%;比空白NBR的拉伸强度提高257%。热重及热氧老化力学性能分析表明,酶解木质素在NBR/EHL共混体系中起到一定的热稳定及抗老化作用。扫描电镜图像显示,气流粉碎的酶解木质素与NBR的相容性比球磨、喷雾干燥法的有较大提高,木质素颗粒与橡胶相间的相互作用力较强。 The influence of three pretreatment methods (Ball Milling (BM), Spray Drying (SD) and Jet Milling (JM)) of Enzymatic Hydrolysis Lignin (EHL) on their acrylonitrile butadiene rubber (NBR) reinforcement abilities was investigated. The results show that the Jet Milled Lignin (EHL-JM) has the smallest bulk density (0.3329 g.cm^-3), the finest particle size (about 2.5 μm) and the best dispersion in NBR matrices, which results in the best strengthening effect. When 40 phr (parts per hundred rubber) lignin was added, the tensile strength of NBR reinforced by EHL-JM is 24.44% and 61.29% higher than that of EHL-BM and EHL-SD, respectively, and the tensile strength is 257% times higher than that of pure NBR. Thermogravimetry results and the analysis of thermal-oxidative aging mechanical properties reveal that EHL can enhance thermal-stabilizing and anti-aging properties of the NBR/EHL blends. Scanning electron microscope images show that, comparing with EHL-BM and EHL-SD, EHL-JM has better compatibility with NBR and the interphase adhesion between lignin particles and rubber is stronger.
出处 《高校化学工程学报》 EI CAS CSCD 北大核心 2014年第4期830-836,共7页 Journal of Chemical Engineering of Chinese Universities
基金 国家杰出青年科学基金(20925622) 国家自然科学基金(21006036) 973计划(2010CB732205) 国家国际科技合作专项(2013DFA41670)
关键词 酶解木质素 丁腈橡胶 补强性能 气流粉碎 球磨 喷雾干燥 enzymatic hydrolysis lignin (EHL) acrylonitrile butadiene rubber (NBR) reinforcingproperties jet milling (JM) ball milling (BM) spray drying (SD)
  • 相关文献

参考文献27

  • 1Lora J H, Glasser W G. Recent industrial applications of lignin: a sustainable alternative to nonrenewable materials [J]. Journal ofPolymers and the Environment, 2002, 10(1-2): 39-48.
  • 2Zhu J Y, Pan X J. Woody biomass pretreatment for cellulosic ethanol production: technology and energy consumption evaluation [J].Bioresource Technology, 2009, 101(13): 4992-5002.
  • 3Stewart D. Lignin as a base material for materials applications: chemistry, application and economics[J]. Industrial Crops andProducts, 2008, 27(2): 202-207.
  • 4周明松,杨东杰,邱学青.不同来源木质素磺酸钠对水煤浆流变特性的影响[J].高校化学工程学报,2007,21(3):386-391. 被引量:31
  • 5刘纲勇,邱学青,邢德松.麦草碱木素酚化改性及其制备LPF胶粘剂工艺研究[J].高校化学工程学报,2007,21(4):678-684. 被引量:34
  • 6吕晓静,杨军,王迪珍,罗东山.木质素的高附加值应用新进展[J].化工进展,2001,20(5):10-14. 被引量:63
  • 7Zheng M F, Liu X X, Cheng X S. Graft copolymerization of enzymatic hydrolysis lignin and maleic anhydride[C]//AIP ConferenceProceedings, 2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy. Sanya, Hainan, China:American Institute of Physics, 2010, 1251(1): 328-331.
  • 8Jin Y Q, Cheng X S, Zheng Z B. Preparation and characterization of phenol-formaldehyde adhesives modified with enzymatichydrolysis lignin [J]. Bioresource Technology, 2010, 101(6): 2046-2048.
  • 9Doherty W O S, Mousavioun P, Fellows C M. Value-adding to cellulosic ethanol: lignin polymers [J]. Industrial Crops andProducts, 2011, 33(2): 259-276.
  • 10Zhou X Y, Tang L J, Zheng F. Oxygen plasma-treated enzymatic hydrolysis lignin as a natural binder for manufacturingbiocomposites [J]. Holzforschung: International Journal of the Biology, Chemistry, Physics and Technology of Wood, 2011,65(6): 829-833.

二级参考文献100

共引文献197

同被引文献73

引证文献5

二级引证文献20

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部