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Preparation of high-damping soft elastomer based on Eucommia ulmoides gum

  • Feng YangEmail author
  • Li Dai
  • Tong Liu
  • Jinlin Zhou
  • Qinghong FangEmail author
Original Paper
  • 12 Downloads

Abstract

This paper focus on the nature of a high-damping soft elastic material based on Eucommia ulmoides gum (EUG) obtained by epoxidation of EUG first and then in situ reaction between epoxy group and sodium bisulfite. The influence of degree of modification (M mol%) and degree of sulfonation (S mol%) of the product sulfonated E. ulmoides gum (SEUG) on the melting–crystallization behavior, tensile properties and dynamic mechanical properties is analyzed mainly. The results show that M mol% is the key factor in controlling the aggregation structure and static or dynamic mechanical behavior of SEUG, while the introduced sodium bisulfite groups show strengthening and toughening effect to some extent. Besides, the SEUG with high M mol% shows dramatically high tanδ value. With M mol% increasing, the tensile strength and Shore A hardness of SEUG decrease sequentially, while the elongation at break increases visibly. SEUGs with M mol% above 20.3 display soft and elastic stress–strain behavior. At similar M mol% level, SEUG with higher S mol% shows higher tensile strength and lower elongation at break than the one with lower S mol% value. These are attributed to the transformation of the aggregate structure and the introduction of ion interaction. The maximum tanδ value of SEUG reaches up to 2.19. The removal of the restriction effect of crystal region on the molecular motion of amorphous and the increased intermolecular interaction are thought to be main causes.

Keywords

Sulfonation Epoxidation Eucommia ulmoides gum Degree of modification Degree of sulfonation Damping 

Notes

Acknowledgements

The authors gratefully appreciate financial support supplied by the National Key Research and Development Program of China (No. 2017YFB0306902) and the Opening subject of Key Laboratory of Synthetic Rubber of Chinese Academy of Sciences (No. KLSR201702).

References

  1. 1.
    Zhang J, Xue Z (2011) Study on under-water sound absorption properties of Eucommia ulmoides gum and its blends. Polym Bull 67(3):511–525.  https://doi.org/10.1007/s00289-011-0489-9 CrossRefGoogle Scholar
  2. 2.
    Zhang J, Xue Z (2011) A comparative study on the properties of Eucommia ulmoides gum and synthetic trans-1,4-polyisoprene. Polym Test 30(7):753–759.  https://doi.org/10.1016/j.polymertesting.2011.06.010 CrossRefGoogle Scholar
  3. 3.
    Xuejun Z, Chuan C, Mengmeng Z, Xiaoyan L, Qinghui W, Sanfa H (2008) Effect of alkali and enzymatic pretreatments of Eucommia ulmoides leaves and barks on the extraction of gutta percha. J Agric Food Chem 56(19):8936.  https://doi.org/10.1021/jf800642y CrossRefGoogle Scholar
  4. 4.
    Yan R (2007) Insight into materials engineering of Eucommia ulmoides gum. In: International Symposium on Eucommia ulmoides, vol 1, pp 34–37.  https://doi.org/10.3387/iseu.1.34
  5. 5.
    Sarina Zhang J (2012) Dynamic mechanical properties of Eucommia ulmoides gum with different degree of cross-linking. Polym Bull 68(7):2021–2032.  https://doi.org/10.1007/s00289-012-0712-3 CrossRefGoogle Scholar
  6. 6.
    Zhang J, Li X, Xue Z, Yan R (2007) Modification of three general rubbers by Eucommia ulmoides resin. In: International symposium on Eucommia ulmoides, vol 1, pp 123–125.  https://doi.org/10.3387/iseu.1.123
  7. 7.
    Yang F, Liu Q, Li X, Yao L, Fang Q (2017) Epoxidation of eucommia ulmoides gum by emulsion process and the performance of its vulcanizates. Polym Bull 74(9):3657–3672.  https://doi.org/10.1007/s00289-017-1912-7 CrossRefGoogle Scholar
  8. 8.
    Yang F, Meng X, Yu H (2017) Synthesis and characterization of butyl methacrylate grafted on Eucommia ulmoides gum. Polym Mater Sci Eng 33(4):19–24.  https://doi.org/10.16865/j.cnki.1000-7555.2017.04.004 Google Scholar
  9. 9.
    Slc M, Deraet X, Van AG, Geerlings P, De PF (2016) Aromatic sulfonation with sulfur trioxide: mechanism and kinetic model. Chem Sci 8(1):680–688.  https://doi.org/10.1039/c6sc03500k Google Scholar
  10. 10.
    Misichronis K, Zhang W, Cheng S, Wang Y, Shrestha U, Dadmun M, Mays JW, Saito T (2018) Design, synthesis, and characterization of lightly sulfonated multigraft acrylate-based copolymer superelastomers. RSC Adv 8(10):5090–5098.  https://doi.org/10.1039/C7RA08641E CrossRefGoogle Scholar
  11. 11.
    Liao Y, Strong V, Wei C, Wang X, Li XG, Kaner RB (2012) Sulfonated polyaniline nanostructures synthesized via rapid initiated copolymerization with controllable morphology, size, and electrical properties. Macromolecules 45(3):1570–1579.  https://doi.org/10.1021/ma2024446 CrossRefGoogle Scholar
  12. 12.
    Li H, Zeng X (2010) Epoxidation of styrene–isoprene–styrene block copolymer and research on its reaction mechanism. J Wuhan Univ Technol 25(3):403–407.  https://doi.org/10.1007/s11595-010-0011-5 CrossRefGoogle Scholar
  13. 13.
    Taniguchi T, Kurihara S, Tateishi H, Hatakeyama K, Koinuma M, Yokoi H, Hara M, Ishikawa H, Matsumoto Y (2015) pH-driven, reversible epoxy ring opening/closing in graphene oxide. Carbon 84(1):560–566.  https://doi.org/10.1016/j.carbon.2014.12.054 CrossRefGoogle Scholar
  14. 14.
    Zhang X, Zhang C, Wang Y, Li Y (2010) Synthesis and characterization of symmetrical triblock copolymers containing crystallizable high- trans -1,4-polybutadiene. Polym Bull 65(3):201–213.  https://doi.org/10.1007/s00289-009-0192-2 CrossRefGoogle Scholar
  15. 15.
    Wang Z, Zhang Y, Jiang F, Fang H, Wang Z (2014) Synthesis and characterization of designed cellulose-graft-polyisoprene copolymers. Polym Chem 5(10):3379–3388.  https://doi.org/10.1039/C3PY01574B CrossRefGoogle Scholar
  16. 16.
    Jiang S, Ladewig BP (2017) High ion-exchange capacity semihomogeneous cation exchange membranes prepared via a novel polymerization and sulfonation approach in porous polypropylene. ACS Appl Mater Interfaces 9(44):38612–38620.  https://doi.org/10.1021/acsami.7b13076 CrossRefGoogle Scholar
  17. 17.
    Xia L, Wang Y, Ma Z, Du A, Qiu G, Xin Z (2017) Preparation of epoxidized Eucommia ulmoides gum and its application in styrene-butadiene rubber (SBR)/silica composites. Polym Adv Technol 28(1):94–101.  https://doi.org/10.1002/pat.3863 CrossRefGoogle Scholar
  18. 18.
    Bijarimi M, Ahmad S, Alam AKMM (2016) Toughening effect of liquid natural rubber on the morphology and thermo-mechanical properties of the poly(lactic acid) ternary blend. Polym Bull 74(8):3301–3317.  https://doi.org/10.1007/s00289-016-1889-7 CrossRefGoogle Scholar
  19. 19.
    Alam AKMM, Beg MDH, Yunus RM (2017) Microstructure and fractography of multiwalled carbon nanotube reinforced unsaturated polyester nanocomposites. Polym Compos 38:E462–E471.  https://doi.org/10.1002/pc.23911 CrossRefGoogle Scholar
  20. 20.
    Tang Z, Huang J, Guo B, Zhang L, Liu F (2016) Bioinspired engineering of sacrificial metal-ligand bonds into elastomers with supramechanical performance and adaptive recovery. Macromolecules 49(5):1781–1789.  https://doi.org/10.1021/acs.macromol.5b02756 CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringShen Yang University of Chemical TechnologyShenyangPeople’s Republic of China

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