Liquid carboxyl-terminated poly(butadiene-co-acrylonitrile)(CTBN)-epoxy resin(EP)prepolymers were prepared with different contents of CTBN.The chemical reactions between EP and CTBN were characterized by Fourier ransform infrared (FTIR) spectroscopy and gel permeation chromatography (GPC).The scanning electron micrograph (SEM) and dynamic mechanical analysis (DMA) of curing films showed phase separation,and the rubber particles were finely dispersed in the epoxy matrix.Mechanical properties analysis of curing films showed that impact strength and elongation at break increased significantly upon the addition of CTBN,indicating good toughness of the modified epoxy resins.Thermogravimetric analysis (TGA) showed that the incorporation of CTBN had little effect on the thermal stability of EP.Fusion-bondedepoxy (FBE) powder coatings modified with CTBN-EP prepolymers were prepared.The experimental results demonstrate the ability of CTBN-EP prepolymers,toughening technology to dramatically enhance the flexibility and impact resistance of FBE coatings without compromising other key properties such as corrosion protection.
参考文献
| [1] | Xu YJ;Liao GX;Gu TS;Zheng L;Jian XG .Mechanical and Morphological Properties of Epoxy Resins Modified by Poly(phthalazinone ether sulfone ketone)[J].Journal of Applied Polymer Science,2008(4):2253-2260. |
| [2] | Raju Thomas;Ding Yumei;He Yuelong .Miscibility,morphology,thermal,and mechanical properties of a DGEBA based epoxy resin toughened with a liquid rubber[J].Polymer: The International Journal for the Science and Technology of Polymers,2008(1):278-294. |
| [3] | Thomas, R;Boudenne, A;Ibos, L;Candau, Y;Thomas, S .Thermophysical Properties of CTBN and HTPB Liquid Rubber Modified Epoxy Blends[J].Journal of Applied Polymer Science,2010(6):3232-3241. |
| [4] | Ranjana Yadav;Deepak Srivastava .Blends of cardanol-based epoxidized novolac resin and CTBN for application in surface coating: a study on thermal, mechanical, chemical, and morphological characteristics[J].Journal of coatings technology and research,2010(5):557-568. |
| [5] | Lipic PM.;Hillmyer MA.;Bates FS. .Nanostructured thermosets from self-assembled amphiphilic block copolymer/epoxy resin mixtures[J].Journal of the American Chemical Society,1998(35):8963-8970. |
| [6] | Hongkyeong Kim;Kookheon Char .Effect of Phase Separation on Rheological Properties during the Isothermal Curing of Epoxy Toughened with Thermoplastic Polymer[J].Industrial & Engineering Chemistry Research,2000(4):955-959. |
| [7] | G.Cicala;A.Recca;C.Restuccia .Influence of Hydroxyl Functionalized Hyperbranched Polymers on the Thermomechanical and Morphological Properties of Epoxy Resins[J].Polymer engineering and science,2005(2):225-237. |
| [8] | Blanco, M;Lopez, M;De Arcaya, PA;Ramos, JA;Kortaberria, G;Riccardi, CC;Mondragon, I .Thermoplastic-Modified Epoxy Resins Cured with Different Functionalities Amine Mixtures: Morphology, Thermal Behavior, and Mechanical Properties[J].Journal of Applied Polymer Science,2009(3):1753-1760. |
| [9] | Yang, XT;Yi, FP;Xin, ZR;Zheng, SX .Morphology and mechanical properties of nanostructured blends of epoxy resin with poly(epsilon-caprolactone)-block-poly(butadiene-co-acrylonitrile)-block- poly(epsilon-caprolactone) triblock copolymer[J].Polymer: The International Journal for the Science and Technology of Polymers,2009(16):4089-4100. |
| [10] | Ramos VD;da Costa HM;Soares VLP;Nascimento RSV .Modification of epoxy resin: a comparison of different types of elastomer[J].Polymer Testing,2005(3):387-394. |
| [11] | Yingfeng Yu;Minghai Wang;David Foix .Rheological Study of Epoxy Systems Blended with Poly(ether sulfone)of Different Molecular Weights[J].Industrial & Engineering Chemistry Research,2008(23):9361-9369. |
| [12] | G.Vanden Poel;S.Goossens;B.Goderis;G.Groeninckx .Reaction induced phase separation in semicrystalline thermoplastic/epoxy resin blends[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(24):10758-10771. |
| [13] | Ni Y;Zheng SX .Nanostructured thermosets from epoxy resin and an organic-inorganic amphiphile[J].Macromolecules,2007(19):7009-7018. |
| [14] | Ma J;Mo MS;Du XS;Rosso P;Friedrich K;Kuan HC .Effect of inorganic nanoparticles on mechanical property, fracture toughness and toughening mechanism of two epoxy systems[J].Polymer: The International Journal for the Science and Technology of Polymers,2008(16):3510-3523. |
| [15] | Bobby Russell;Richard Chartoff .The influence of cure conditions on the morphology and phase distribution in a rubber-modified epoxy resin using scanning electron microscopy and atomic force microscopy[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(3):785-798. |
| [16] | J.Lopez;I.Lopez-Bueno;P.Nogueira;C.Ramirez;M.J.Abad;L.Barral;J.Cano .Effect of poly(styrene-co-acrylonitrile) on the curing of an epoxy/amine resin[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(4):1669-1677. |
| [17] | Garima Tripathi;Deepak Srivastava .Effect of carboxyl-terminated poly(butadiene-co-acrylonitrile) (CTBN) concentration on thermal and mechanical properties of binary blends of diglycidyl ether of bisphenol-A (DGEBA) epoxy resin[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1/2):262-269. |
| [18] | Wise C.W. .CTBN rubber phase precipitation in model epoxy resins[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(12):4625-4633. |
| [19] | Harani H.;Fellahi S.;Bakar M. .Toughening of Epoxy Resin Using Hydroxyl-Terminated Polyesters[J].Journal of Applied Polymer Science,1999(1):29-38. |
| [20] | Chikhi N.;Fellahi S.;Bakar M. .Modification of epoxy resin using reactive liquid (ATBN) rubber[J].European Polymer Journal,2002(2):251-264. |
| [21] | Eklind H.;Steeman PAM.;Maurer FHJ. .MICROMECHANICAL AND MICRODIELECTRIC TRANSITIONS IN P(S-G-EO) MODIFIED PPO/PMMA BLENDS[J].Polymer: The International Journal for the Science and Technology of Polymers,1997(5):1047-1055. |
| [22] | Radhakrishnan, S;Sonawane, N;Siju, CR .Epoxy powder coatings containing polyaniline for enhanced corrosion protection[J].Progress in Organic Coatings,2009(4):383-386. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%