Miscibility, morphology, thermal, and mechanical properties of a DGEBA based epoxy resin toughened with a liquid rubber

Thomas, Raju; Ding, Yong; Yuelong, He; Yang, Le; Moldenaers, Paula; Yang, Weimin; Czigány, Tibor; Thomas, Sabu

doi:10.1016/j.polymer.2007.11.030

Cited by 434 publications

(281 citation statements)

References 49 publications

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“…Rubber nanoparticles achieved significantly toughening effect at 5 wt% in comparison with conventional epoxy/rubber composites where 15e20 wt% microparticles are indispensible for effective toughening [1,35]. It must be the particle size that makes such a great difference.…”

Section: Calculation and Comparison Of Interparticle Distance And Parmentioning

confidence: 99%

Structure–property relations of 55nm particle-toughened epoxy

Kuan

Dai

et al. 2010

Polymer

108

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Section: Calculation and Comparison Of Interparticle Distance And Parmentioning

confidence: 99%

Structure–property relations of 55nm particle-toughened epoxy

Kuan

Dai

et al. 2010

Polymer

108

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“…Notably, one benefit of the BTCP used here is that it does not seriously deteriorate the physical performance of the epoxy polymers. Flexural strength data in Figure 9 show that the addition of flexural BTCP does not result in a loss of flexural strength, as compared to that in a neat epoxy composition, unlike other toughening agents, which decrease the flexural strength [13,33]. (Figure 3b) after curing the epoxy polymer [31].…”

Section: Thermal and Mechanical Properties Of Epoxy/prepared Amine Cumentioning

confidence: 99%

“…Akbari et al [32] and Saleh et al [13] mentioned a decrease in the tensile strength of CTBN-modified epoxy resin. Moreover, Thomas et al [33] reported a decrease in the tensile strength of epoxy resin modified with hydroxyl-terminated polybutadiene (HTPB) liquid rubber. Notably, one benefit of the BTCP used here is that it does not seriously deteriorate the physical performance of the epoxy polymers.…”

Section: Thermal and Mechanical Properties Of Epoxy/prepared Amine Cumentioning

confidence: 99%

Synthesis of Benzene Tetracarboxamide Polyamine and Its Effect on Epoxy Resin Properties

Lee

Seo

et al. 2018

Polymers

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Epoxy resins have found various industrial applications in high-performance thermosetting resins, high-performance composites, electronic-packaging materials, adhesives, protective coatings, etc., due to their outstanding performance, including high toughness, high-temperature performance, chemical and environmental resistance, versatile processability and adhesive properties. However, cured epoxy resins are very brittle, which limits their applications. In this work, we attempted to enhance the toughness of cured epoxy resins by introducing benzene tetracarboxamide polyamine (BTCP), synthesized from pyromellitic dianhydride (PMDA) and diamines in N-methyl-2-pyrrolidone (NMP) solvent. During this reaction, increased viscosity and formation of amic acid could be confirmed. The chemical reactions were monitored and evidenced using 1 H-NMR spectroscopy, FT-IR spectroscopy, water gel-phase chromatography (GPC) analysis, amine value determination and acid value determination. We also studied the effect of additives on thermomechanical properties using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamical mechanical analysis (DMA), thermomechanical analysis (TMA) and by measuring mechanical properties. The BTCP-containing epoxy resin exhibited high mechanical strength and adhesion strength proportional to the amount of BTCP. Furthermore, field-emission scanning electron microscopy images were obtained for examining the cross-sectional morphology changes of the epoxy resin specimens with varying amounts of BTCP.

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“…Epoxy resin exhibit inherent brittle nature and poor crack resistance somehow similar to cementitious materials. Incorporation of microsized rubber particles used as a method to improve the toughness of epoxy composites, but also they lead to significant loss of tensile strength (Thomas et al, 2008). Compared to the microrubber, the nanorubber particles produce an impressive toughening effect, while preserve the tensile properties of epoxy (Tang et al, 2013).…”

Section: Nanoparticlesmentioning

confidence: 99%

Cement sheath modification using nanomaterials for long-term zonal isolation of oil wells: Review

Jafariesfad

Geiker

Gong

et al. 2017

Journal of Petroleum Science and Engineering

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Well cementing is an important operation during drilling and completion of oil wells. The cement sheath must maintain well integrity behind the casing and provide long-term zonal isolation to ensure safety and prevent environmental problems. Despite recent technological advancement in smart polymeric materials, fibers and self-healing materials, it is still a big challenge to provide adequate long-term zonal isolation in severe oil well conditions. This review provides an overview of challenges faced in oil wells compromising the long-term ability of the cement sheath to provide zonal isolation. Factors controlling the long-term performance of cement sheath are discussed, in terms of shrinkage, tensile strength and flexibility. The use of nanomaterials as cement additive to fabricate flexible, high-tensile strength, and low-shrinkage cement system are reviewed.Introduction of nanomaterials into the cement system is a promising approach to design a sealant for the entire life of the well, thereby avoiding potential remedial costs and environmental impacts.

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Miscibility, morphology, thermal, and mechanical properties of a DGEBA based epoxy resin toughened with a liquid rubber

Cited by 434 publications

References 49 publications

Structure–property relations of 55nm particle-toughened epoxy

Structure–property relations of 55nm particle-toughened epoxy

Synthesis of Benzene Tetracarboxamide Polyamine and Its Effect on Epoxy Resin Properties

Cement sheath modification using nanomaterials for long-term zonal isolation of oil wells: Review

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