Macromolecular Research, Vol.26, No.11, 984-997, November, 2018
Preparation and Characterization of Ethylene Vinyl-Acetate Copolymer/Silicone Blends with Excellent Two-Way Shape Memory Properties
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This study investigated the preparation of ethylene-vinyl acetate copolymer (EVA) and silicone rubber blends using a melt-blending method. EVA/Silicone- D blends were prepared by using peroxide (Dicumyl peroxide, DCP) as a crosslinking agent. The microstructure, thermal properties, and shape memory behavior were investigated for the EVA/Silicone-D blends. DCP not only could assist the crosslinking of EVA and silicone, but also increase the compatibility of blends. Silicone tended to endow the prepared EVA/silicone shape memory blends with high thermal stability, hydrophobicity, and recovery magnitude. The crystal orientation and crosslinking effects of EVA/Silicone-D blends played key roles in the shape memory behavior. Two-dimensional X-ray diffraction analysis revealed the increased crystal orientation with increasing loads. The one-way shape memory results demonstrated that both Rf (shape fixing ratio) and Rr (shape recovery ratio) values were above 97% after three consecutive shape memory cycles. From two-way shape memory results, it was observed that Ract, actuation magnitudes, contributed from the cooling- induced elongation increased with increasing loads and EVA contents. In addition, owing to this increased molecular orientation with increasing loads, the entropy-driven contribution relative to the overall actuation magnitudes increased accordingly. However, the shape memory response was hindered, when the load exceeded a critical value. With increasing silicone contents, the entropy-driven contribution decreased due to the reduced orientation degree at the tighter networks or increased crystalline EVA contents in the blends.
- Ratna D, Karger-Kocsis J, J. Mater. Sci., 43(1), 254 (2008)
- Leng JS, Lan X, Liu YJ, Du SY, Prog. Mater. Sci., 56(7), 1077 (2011)
- Meng H, Li GQ, Polymer, 54(9), 2199 (2013)
- Lu H, Lei M, Yao Y, Yu K, Fu YQ, Nanosci. Nanotechnol. Lett., 6, 772 (2014)
- Lewis CL, Dell EM, J. Polym. Sci. B: Polym. Phys., 54(14), 1340 (2016)
- Gao Y, Wei M, Li X, Xu W, Ahiabu A, Perdiz J, Liu Z, Serpe M, Macromol. Res., 25(6), 513 (2017)
- Thomsen DL, Keller P, Naciri J, Pink R, Jeon H, Shenoy D, Ratna BR, Macromolecules, 34(17), 5868 (2001)
- Tajbakhsh AR, Terentjev EM, Eur. Phys. J. E, 6, 181 (2001)
- Chung T, Rorno-Uribe A, Mather PT, Macromolecules, 41(1), 184 (2008)
- Zotzmann J, Behl M, Hofmann D, Lendlein A, Adv. Mater., 22(31), 3424 (2010)
- Li JJ, Rodgers WR, Xie T, Polymer, 52(23), 5320 (2011)
- Behl M, Keatz K, Noechel U, Sauter T, Lendlein A, PNAS, 110, 12555 (2013)
- Pandini S, Passera S, Messori M, Paderni K, Toselli M, Gianoncelli A, Bontempi E, Ricco T, Polymer, 53(9), 1915 (2012)
- Pandini S, Baldi F, Paderni K, Messori M, Toselli M, Pilati F, Gianoncelli A, Brisotto M, Bontempi E, Ricco T, Polymer, 54(16), 4253 (2013)
- Huang M, Dong X, Wang L, Zhao J, Liu G, Wang D, RSC Adv., 4, 55483 (2014)
- Gao Y, Liu W, Zhu S, ACS Appl. Mater. Interfaces, 9, 4882 (2017)
- Fan LF, Rong MZ, Zhang MQ, Chen XD, Macromol. Rapid Commun., 38, 170012 (2017)
- Bothe M, Pretsch T, Macromol. Chem. Phys., 213, 2378 (2012)
- Bothe M, Pretsch T, J. Mater. Chem. A, 1, 14491 (2013)
- Behl M, Kratz K, Zotzmann J, Nochel U, Lendlein A, Adv. Mater., 25(32), 4466 (2013)
- Qian C, Dong Y, Zhu Y, Fu Y, Smart Mater. Struct., 25, 1 (2016)
- Westbrook KK, Mather PT, Parakh V, Dunn ML, Ge Q, Lee BM, Qi HJ, Smart Mater. Struct., 20, 065010 (2011)
- Chen S, Hu J, Zhuo H, Zhu Y, Mater. Lett., 62, 4088 (2008)
- Wu Y, Hu J, Han J, Zhu Y, Huang H, Li J, Tang B, J. Mater. Chem. A, 2, 18816 (2014)
- Fan LF, Rong MZ, Zhang MQ, Chen XD, Macromol. Rapid Commun., 38, 170012 (2017)
- Kolesov I, Dolynchuk O, Borreck S, Radusch HJ, Polym. Adv. Technol., 25, 1315 (2014)
- Kolesov I, Dolynchuk O, Radusch HJ, Express Polym. Lett., 9, 255 (2015)
- Marais S, Bureau E, Gouanve F, Ben Salem E, Hirata Y, Andrio A, Cabot C, Atmani H, Polym. Test, 23, 475 (2004)
- Katihabwa A, Wang W, Jiang Y, Zhao X, Lu Y, Zhang L, J. Reinf. Plast. Compos., 30, 1007 (2011)
- Luo XF, Mather PT, Macromolecules, 42(19), 7251 (2009)
- Bai Y, Zhang X, Wang Q, Wang T, J. Mater. Chem., 2, 4771 (2014)
- Dong H, Xiao K, Tang X, Zhang Z, Dai J, Long R, Liao W, Desalination Water Treat., 57, 3405 (2016)
- Dong H, Xiao KJ, Li XL, Ren Y, Guo SY, Desalination Water Treat., 51, 3685 (2013)
- Dong H, Xiao K, Li X, Wang Z, Guo S, Desalination Water Treat., 51, 3800 (2013)
- Ma P, Hristova-Bogaerds DG, Lemstra PJ, Zhang Y, Wang S, Macromol. Mater. Eng., 297, 402 (2012)
- Zhang ZX, Qi XD, Li ST, Yang JH, Zhang N, Huang T, Wang Y, Eur. Polym. J., 98, 237 (2018)
- Sarath P, Biswal M, Mohanty S, Nayak SK, J. Clean Prod., 171, 209 (2018)
- Su M, Zeng X, Lai X, Li H, Polym. Test, 65, 491 (2018)
- Matsuura K, Saito H, J. Appl. Polym. Sci., 135, 46192 (2018)
- Mishra JK, Chang YW, Kim DK, Mater. Lett., 61, 3551 (2007)
- Semba T, Kitagawa K, Ishiaku US, Kotaki M, Hamada H, J. Appl. Polym. Sci., 103(2), 1066 (2007)
- Peres AM, Pires RR, Orefice RL, Carbohydr. Polym., 136, 210 (2016)
- Ghanbari-Siahkali A, Mitra S, Kingshott P, Almdal K, Bloch C, Rehmeier HK, Polym. Degrad. Stabil., 90, 471 (2005)
- Cuevas JM, Rubio R, German L, Laza JM, Vilas JL, Rodriguez M, Leon LM, Soft Matter, 8, 4928 (2012)
- Janigova I, Chodak I, Chorvath I, Eur. Polym. J., 28, 1547 (1992)
- Akhlaghi S, Sharif A, Kalaee M, Elahi A, Pirzadeh M, Mazinani S, Afshari M, Mater. Des., 33, 273 (2012)
- Anthamatten M, Roddecha S, Li JH, Macromolecules, 46(10), 4230 (2013)
- Chen EC, Wu TM, Polym. Degrad. Stabil., 92, 1009 (2007)