Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness

Morteza Khalina; Mohammad Hosain Beheshty; Ali Salimi

doi:10.1007/s10118-018-2022-1

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Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness

Articles | Updated：2021-02-18

- Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness
- Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness
- Chinese Journal of Polymer Science 2018年36卷第5期页码：632-640
- Affiliations：
  
  a.Department of Composites, Iran Polymer and Petrochemical Institute, Tehran, Iran
  b.Department of Resin and Adhesives, Iran Polymer and Petrochemical Institute, Tehran, Iran
- Author bio：
  
  Mohammad Hosain Beheshty, E-mail M.Beheshty@ippi.ac.ir
- Funds：
- DOI：10.1007/s10118-018-2022-1
  中图分类号：
- 收稿：2017-06-02，
  
  录用：2017-8-21，
  
  网络首发：2018-01-26，
  
  纸质出版：2018-05-05
- Accepted：
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Morteza Khalina, Mohammad Hosain Beheshty, Ali Salimi. Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness[J]. Chinese Journal of Polymer Science, 2018,36(5):632-640.

Morteza Khalina, Mohammad Hosain Beheshty, Ali Salimi. Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness[J]. Chinese Journal of Polymer Science, 2018, 36(5): 632-640.
Morteza Khalina, Mohammad Hosain Beheshty, Ali Salimi. Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness[J]. Chinese Journal of Polymer Science, 2018,36(5):632-640. DOI： 10.1007/s10118-018-2022-1.

Morteza Khalina, Mohammad Hosain Beheshty, Ali Salimi. Preparation and Characterization of DGEBA/EPN Epoxy Blends with Improved Fracture Toughness[J]. Chinese Journal of Polymer Science, 2018, 36(5): 632-640. DOI： 10.1007/s10118-018-2022-1.

摘要

Abstract

The physical and mechanical properties of blends composed of two kinds of epoxy resins of different numbers of functional groups and chemical structure were studied. One of the resins was a bifunctional epoxy resin based on diglycidyl ether of bisphenol A and the other resin was a multifunctional epoxy novolac resin. Attempt was made to establish a correlation between the structure and the final properties of cured epoxy samples. The blend samples containing high fraction of multifunctional epoxy resin showed higher solvent resistance and lower flexural modulus compared with the blends containing high fraction of bifunctional epoxy resin. The epoxy blends showed significantly higher ductility under bending test than the neat epoxy samples. The compressive modulus and strength increased with increasing of multifunctional epoxy in the samples

probably due to enhanced cross-link density and molecular weight. Morphological analysis revealed the presence of inhomogeneous sub-micrometer structures in all samples. The epoxy blends exhibited significantly higher fracture toughness (by 23% at most) compared with the neat samples. The improvement of the fracture toughness was attributed to the stick-slip mechanism for crack growth and activation of shear yielding and plastic deformation around the crack growth trajectories for samples with higher content of bifunctional epoxy resin as evidenced by fractography study.

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Keywords

references

Lee, H. ; Neville. K. "Handbook of epoxy resins", McGraw Hill, New York, 1982, p. 5-1

May, C. A. "Epoxy resins chemistry and technology", 2nd edn. Marcel Dekker, New York, 1988, p. 551

Hamerton, I. "Recent developments in epoxy resins", Rapra Review Reports, Shawbury, 1996, 8(7), 58-63.

Pham, H. A. Q. ; Marks, M. J. Epoxy resins, in, "Encyclopedia of Polymer Science and Technology", Vol. 9, 3rd Edition, John Wiley & Sons. 2010, p. 678.

D. Ratna , A.K. Banthia . Rubber toughened epoxy . Macromol. Res. , 2004 . 12 ( 1 ): 11 - 21 . DOI: 10.1007/BF03218989 http://doi.org/10.1007/BF03218989 .

S. Ikram , A. Munir . Mechanical and thermal properties of chemically modified epoxy resin . Open J. Synth. Theory Appl. , 2012 . 1 ( 3 ): 36 - 43 . DOI: 10.4236/ojsta.2012.13007 http://doi.org/10.4236/ojsta.2012.13007 .

R. Akbari , M. H. Beheshty , M. Shervin . Toughening of dicy-andiamide-cured DGEBA-based epoxy resins by CTBN liquid . Iran. Polym. J. , 2013 . 22 ( 5 ): 313 - 324 . DOI: 10.1007/s13726-013-0130-x http://doi.org/10.1007/s13726-013-0130-x .

H. Jamshidi , R. Akbari , M. H. Beheshty . Toughening of dicyandiamide-cured DGEBA-based epoxy resins using flexible diamine rubber . Iran. Polym. J. , 2015 . 24 ( 5 ): 399 - 410 . DOI: 10.1007/s13726-015-0332-5 http://doi.org/10.1007/s13726-015-0332-5 .

J. F. Hwang , J. A. Manson , R. W. Hertzberg , G. A. Miller , L. H. Sperling . Structure-property relationship in rubber-toughened epoxies . Polym. Eng. Sci. , 1989 . 29 ( 20 ): 1466 - 1476 . DOI: 10.1002/(ISSN)1548-2634 http://doi.org/10.1002/(ISSN)1548-2634 .

P. Saadati , H. Baharvand , A. Rahimi , J. Morshedian . Effect of modified liquid rubber on increasing toughness of epoxy resins . Iran. Polym. J. , 2005 . 14 ( 7 ): 637 - 646 . http://www.researchgate.net/publication/242723899_Effect_of_Modified_Liquid_Rubber_on_Increasing_Toughness_of_Epoxy_Resins http://www.researchgate.net/publication/242723899_Effect_of_Modified_Liquid_Rubber_on_Increasing_Toughness_of_Epoxy_Resins , .

I. Martinez , M. D. Martin , A. Eceiza , P. Oyanguren , I. Mondragon . Phase separation in polysulfone-modified epoxy mixtures:relationships between curing conditions, morphology and ultimate behavior . Polymer , 2000 . 41 ( 3 ): 1027 - 1035 . DOI: 10.1016/S0032-3861(99)00238-4 http://doi.org/10.1016/S0032-3861(99)00238-4 .

M. I. Giannotti , C. R. Bernal , P. A. Oyanguren , M. J. Galante . Morphology and fracture properties relationship of epoxy-diamine systems simultaneously modified with polysulfone and poly(ether imide) . Polym. Eng. Sci. , 2005 . 45 ( 9 ): 1312 - 1318 . DOI: 10.1002/(ISSN)1548-2634 http://doi.org/10.1002/(ISSN)1548-2634 .

H. Li , W. Gan , L. Zhao , S. Li . Studies on the phase separation of apolyetherimide modified epoxy resin.Ⅵ. Effect of surface energy on reaction-induced phase separation of epoxy resinmodified with polyetherimide . J. Macromol. Sci., Part A Pure Appl. Chem. A , 2003 . 40 ( 8 ): 833 - 846 . DOI: 10.1081/MA-120022274 http://doi.org/10.1081/MA-120022274 .

M. A. Andrés , J. Garmendia , A. Valea , A. Eceiza , I. Mondragon . Fracture toughness of epoxy resins modified with poly-ethersulfone:influence of stoichiometry on themorphology ofthe mixtures . J. Appl. Polym. Sci. , 1998 . 69 ( 1 ): 183 - 191 . DOI: 10.1002/(ISSN)1097-4628 http://doi.org/10.1002/(ISSN)1097-4628 .

S. Grishchuk , O. Gryshchuk , M. Weber , J. Karger-Kocsis . Structure and toughness of polyethersulfone (PESU)-modifiedanhydride-cured tetrafunctional epoxy resin:effect of PESU molecular mass . J. Appl. Polym. Sci. , 2012 . 123 ( 2 ): 1193 - 1200 . DOI: 10.1002/app.34610 http://doi.org/10.1002/app.34610 .

S. Q. Ma , W. Q. Liu , C. H. Hu , Z. F. Wang . Modification of epoxy resins with polyether-g-polysiloxanes . Iran. Polym. J. , 2010 . 19 ( 3 ): 185 - 196 . http://www.researchgate.net/publication/267378894_Modification_of_Epoxy_Resins_with_Polyether-g-polysiloxanes http://www.researchgate.net/publication/267378894_Modification_of_Epoxy_Resins_with_Polyether-g-polysiloxanes , .

J. D. Tong , R. K. Bai , Y. F. Zou , C. Y. Pan , S. Ichimura . Flexibility improvement of epoxy-resin by using polysiloxanes and theirderivatives . J. Appl. Polym. Sci. , 1994 . 52 ( 10 ): 1373 - 1381 . DOI: 10.1002/app.1994.070521003 http://doi.org/10.1002/app.1994.070521003 .

F. Zhao , Q. C. Sun , D. P. Fang , K. D. Yao . Preparation and properties of polydimethylsiloxane-modified epoxy resins . J. Appl. Polym. Sci. , 2000 . 76 ( 11 ): 1683 - 1690 . DOI: 10.1002/(ISSN)1097-4628 http://doi.org/10.1002/(ISSN)1097-4628 .

N. Mahnam , M. H. Beheshty , M. Barmar , M. Shervin . Modification of dicyandiamide-cured epoxy resin with different molecular weight of polyethylene glycol and its effect on epoxy/glass prepreg characteristic . High Perform. Polym. , 2013 . 25 ( 6 ): 705 - 713 . DOI: 10.1177/0954008313483151 http://doi.org/10.1177/0954008313483151 .

S. Sprenger . Epoxy resins modified with elastomers and surface-modified silica nanoparticles . Polymer , 2013 . 54 ( 18 ): 4790 - 4797 . DOI: 10.1016/j.polymer.2013.06.011 http://doi.org/10.1016/j.polymer.2013.06.011 .

J. Lee , A. F. Yee . Fracture of glass bead/epoxy composites:on micro-mechanical deformations . Polymer , 2000 . 41 ( 23 ): 8363 - 8373 . DOI: 10.1016/S0032-3861(00)00187-7 http://doi.org/10.1016/S0032-3861(00)00187-7 .

N. G. Sahoo , S. Rana , J. W. Cho , S. H. Chan , L. Li . Polymer nanocomposites based on functionalized carbon nanotubes . Prog. Polym. Sci. , 2010 . 35 ( 7 ): 837 - 867 . DOI: 10.1016/j.progpolymsci.2010.03.002 http://doi.org/10.1016/j.progpolymsci.2010.03.002 .

M. M. Rahman , M. Hosur , S. Zainuddin , K. C. Jajam , H. V. Tippur , S. Jee-lani. . Mechanical characterization of epoxy compositesmodified with reactive polyol diluents and randomly-oriented amino-functionalized MWCNTs . Polym. Test. , 2012 . 31 ( 8 ): 1083 - 1093 . DOI: 10.1016/j.polymertesting.2012.08.010 http://doi.org/10.1016/j.polymertesting.2012.08.010 .

R. A. Pearson , A. F. Yee . Toughening mechanisms in elastomer-modified epoxies:Part 3:The effect of crosslink density . J. Mater. Sci. , 1989 . 24 ( 7 ): 2571 - 2580 . DOI: 10.1007/BF01174528 http://doi.org/10.1007/BF01174528 .

S. J. Shaw , D. A. Tod . The effects of cure conditions on a rubber-modified epoxy adhesive . J. Adhesion. , 1989 . 28 ( 4 ): 231 - 246 . DOI: 10.1080/00218468908030172 http://doi.org/10.1080/00218468908030172 .

G. Levita , S. D. Petris , A. Marchetti , A. Lazzeri . Crosslink density and fracture toughness of epoxy resisn, J . Mater. Sci. , 1991 . 26 ( 9 ): 2348 - 2352 . DOI: 10.1007/BF01130180 http://doi.org/10.1007/BF01130180 .

S. H. Liu , E. B. Nauman . Effects of crosslinking density on the toughening mechanisms of rubber-modified thermosets . J. Mater. Sci. , 1991 . 26 ( 24 ): 6581 - 6590 . DOI: 10.1007/BF02402649 http://doi.org/10.1007/BF02402649 .

Bradley, W. L. ; Schultz, W. ; Corelto, C. ; Komatsu, S. "The synergistic effect of crosslink density and rubber additions on the fracture toughness of polymers, In Toughened Plastics", ed. by Riew C. K. ; Kinloch, A. J., ACS, Washington, 1993, p. 317.

H. H. Wang , J. C. Chen . Modification and compatibility of epoxy resin with hydroxyl terminated or amine terminated polyuretanes . Polym. Eng. Sci. , 1995 . 35 ( 18 ): 1468 - 1475 . DOI: 10.1002/(ISSN)1548-2634 http://doi.org/10.1002/(ISSN)1548-2634 .

H. Kishi , Y. B. Shi , J. Huang , A. F. Yee . Shear ductility and toughenability study of highly cross-linked epoxy/polyethersulphone, J . Mater. Sci. , 1998 . 32 ( 3 ): 3479 - 3488 . https://link.springer.com/article/10.1023/A:1018512507960 https://link.springer.com/article/10.1023/A:1018512507960 , .

M. Franco , I. Mondragon , C. B. Bucknall . Blends of epoxy resin with amine-terminated polyoxypropylene elastomer:Morphology and properties . J. Appl. Polym. Sci. , 1999 . 72 ( 3 ): 427 - 434 . DOI: 10.1002/(ISSN)1097-4628 http://doi.org/10.1002/(ISSN)1097-4628 .

B. Aizpurua , M. Franco , M. A. Corcuer , C. C. Riccardi , I. Mondragon . Chemorheology and ultimate behavior of epoxy-amine mixtures modified with a liquid oligomer . J. Appl. Polym. Sci. , 2000 . 76 ( 8 ): 1269 - 1279 . DOI: 10.1002/(ISSN)1097-4628 http://doi.org/10.1002/(ISSN)1097-4628 .

M. L. Arias , P. M. Frontini , R. J. J. Williams . Analysis of the damage zone around the crack tip for two rubber-modified epoxy matrices exhibiting different toughenability . Polymer , 2003 . 44 ( 5 ): 1537 - 1546 . DOI: 10.1016/S0032-3861(02)00829-7 http://doi.org/10.1016/S0032-3861(02)00829-7 .

B. U. Kang , J. Y. Jho , J. Kim , S. S. Lee , Park , C. R. Choe . Effect of molecular weight between crosslinks on the fracture behavior of rubber-toughened epoxy adhesives . J. Appl. Polym. Sci. , 2001 . 79 ( 1 ): 38 - 48 . DOI: 10.1002/(ISSN)1097-4628 http://doi.org/10.1002/(ISSN)1097-4628 .

H. Kishi , T. Naitou , S. Matsuda , A. Murakami , Y. Muraji , Y. Nakagawa . Mechanical oroperties and inhomogeneous nanostructures of dicyandiamide-cured epoxy resins . J. Polym. Sci., Part B:Polym. Phys. , 2007 . 45 ( 12 ): 1425 - 1434 . DOI: 10.1002/(ISSN)1099-0488 http://doi.org/10.1002/(ISSN)1099-0488 .

D. H. Zhang , D. M. Jia , X. B. Huang . Bisphenol-A epoxy resin reinforced and toughened by hyperbranched epoxy resin . Front. Chem. Eng. China , 2007 . 1 ( 4 ): 349 - 354 . DOI: 10.1007/s11705-007-0063-z http://doi.org/10.1007/s11705-007-0063-z .

I. M. Mc Aninch , G. R. Palmese , J.L. Len hart , J. J. L. Scala . Epoxy-amine networks with varying epoxy polydispersity . J. Appl. Polym. Sci. , 2015 . 132 ( 8 ): 41503 - 41512 . https://www.researchgate.net/publication/266748614_Epoxy-Amine_Networks_with_Varying_Epoxy_Polydispersity https://www.researchgate.net/publication/266748614_Epoxy-Amine_Networks_with_Varying_Epoxy_Polydispersity , .

H. Kishi , Y. Kunimitsu , Y. Nakashima , T. Abe , J. Imade , S. Oshita , Y. Morishita , M. Asada . Control of nanostructures generated in epoxy matrices blended with PMMA-b-PnBA-b-PMMA triblock copolymers . Express Polym. Lett. , 2015 . 9 ( 1 ): 23 - 35 . DOI: 10.3144/expresspolymlett.2015.4 http://doi.org/10.3144/expresspolymlett.2015.4 .

C. Acebo , M. Alorda , F. Ferrando , X. Fernández-Francos , A. Serra , J. M. Morancho , J. M. Salla , X. Ramis . Epoxy/anhydride thermosets modified with end-capped star polymers with poly(ethyleneimine) cores of different molecular weight and poly( ε -caprolactone) arms . Express Polym. Lett. , 2015 . 9 ( 9 ): 809 - 823 . DOI: 10.3144/expresspolymlett.2015.76 http://doi.org/10.3144/expresspolymlett.2015.76 .

R. Thomas , J. Abraham , S. Thomas , S. Thomas . Influence of carboxyl-terminated (butadiene- co -acrylonitrile) loading on the mechanical and thermal properties of cured epoxy blends . J. Polym. Sci., Part B:Polym. Phys. , 2004 . 42 ( 13 ): 2531 - 2544 . DOI: 10.1002/(ISSN)1099-0488 http://doi.org/10.1002/(ISSN)1099-0488 .

G. Yang , S. Fu , J. P. Yang . Preparation and mechanical properties of modified epoxy resins with flexible diamines . Polymer , 2007 . 48 ( 1 ): 302 - 310 . DOI: 10.1016/j.polymer.2006.11.031 http://doi.org/10.1016/j.polymer.2006.11.031 .

G. Yang , B. Zheng , J. P. Yang , G. S. Xu , S. Y. Fu . Preparation and cryogenic mechanical properties of epoxy resins modified by poly(ethersulfone) . J. Polym. Sci., Part A:Polym. Chem. , 2008 . 46 ( 2 ): 612 - 624 . DOI: 10.1002/(ISSN)1099-0518 http://doi.org/10.1002/(ISSN)1099-0518 .

J. P. Yang , Z. K. Chen , G. Yang , S. Y. Fu , L. Ye . Simultaneous improvements in the cryogenic tensile strength, ductility and impact strength of epoxy resins by a hyperbranched polymer . Polymer , 2008 . 49 ( 13 ): 3168 - 3175 . https://www.sciencedirect.com/science/article/pii/S0032386108004230 https://www.sciencedirect.com/science/article/pii/S0032386108004230 , .

Z. K. Chen , G. Yang , J. P. Yang , S. Y. Fu , L. Ye , Y. G. Huang . Simultaneously increasing cryogenic strength, ductility and impact resistance of epoxy resins modified by n-butyl glycidyl ether . Polymer , 2009 . 50 ( 19 ): 4753 - 4759 . DOI: 10.1016/j.polymer.2009.08.001 http://doi.org/10.1016/j.polymer.2009.08.001 .

Y. Zhao , Z. K. Chen , Y. Liu , H. M. Xiao , Q. P. Feng , S. Y. Fu . Simultaneously enhanced cryogenic tensile strength and fracture toughness of epoxy resins by carboxylic nitrile-butadiene nano-rubber . Compos:Part A. , 2013 . 55 178 - 187 . DOI: 10.1016/j.compositesa.2013.09.005 http://doi.org/10.1016/j.compositesa.2013.09.005 .

Liu. , G. Yang , H. M. Xiao , Q. P. Feng , S. Y. Fu . Mechanical properties of cryogenic epoxy adhesives:effects of mixed curing agent content . Int. J. Adhes. Adhes. , 2013 . 41 113 - 118 . DOI: 10.1016/j.ijadhadh.2012.10.006 http://doi.org/10.1016/j.ijadhadh.2012.10.006 .

Q. P. Feng , J. P. Yang , Y. I. Liu , H. Xiao , S. Fu . Simultaneously enhanced cryogenic tensile strength, ductility and impact resistance of epoxy resins by polyethylene glycol . J. Mater. Sci. Technol. , 2014 . 30 ( 1 ): 90 - 96 . DOI: 10.1016/j.jmst.2013.08.016 http://doi.org/10.1016/j.jmst.2013.08.016 .

N. Halawani , J. L. Augé , H. Morel , O. Gain , S. Pruvost . Electrical, thermal and mechanical properties of poly-etherimide epoxy-diamine blend . Compos. Part B , 2017 . 110 530 - 541 . DOI: 10.1016/j.compositesb.2016.11.022 http://doi.org/10.1016/j.compositesb.2016.11.022 .

X. Cheng , Q. Wu , S. E. Morgan , J. S. Wiggins . Morphologies and mechanical properties of polyethersulfone modified epoxy blends through multifunctional epoxy composition . J. Appl. Polym. Sci. , 2017 . 134 ( 18 ): 44775 - 44785 . http://onlinelibrary.wiley.com/doi/10.1002/app.44775/abstract http://onlinelibrary.wiley.com/doi/10.1002/app.44775/abstract , .

J. Karger-Kocsis , K. Friedrich . Fatigue crack propagation and related failure in modified, anhydride-cured epoxy resins . Colloid. Polym. Sci. , 1992 . 270 ( 6 ): 549 - 562 . DOI: 10.1007/BF00658286 http://doi.org/10.1007/BF00658286 .

J. Karger-Kocsis , K. Friedrich . Microstructure-related fracture toughness and fatigue crack growth behavior in toughened, anhydride-cured epoxy resins . Compos. Sci. Technol. , 1993 . 48 ( 1 ): 263 - 272 . https://www.sciencedirect.com/science/article/pii/0266353893901435 https://www.sciencedirect.com/science/article/pii/0266353893901435 , .

M. J. Marks , R. V. Snelgrove . Effect of conversion on the structure-property relationships of amine-cured epoxy thermosets . ACS Appl. Mater. Interfaces , 2009 . 1 ( 4 ): 921 - 926 . DOI: 10.1021/am900030u http://doi.org/10.1021/am900030u .

M. Pramanik , E. W. Fowler , J. W. Rawlins . Another look at epoxy thermosets correlating structure with mechanical properties . Polym. Eng. Sci. , 2014 . 54 ( 9 ): 1990 - 2004 . DOI: 10.1002/pen.v54.9 http://doi.org/10.1002/pen.v54.9 .

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