Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Đặc trưng của sự phục hồi hình dạng thông qua hiện tượng trượt và hiệu ứng nhớ hình ở copolymer ether-vinyl acetate (EVA)
Tóm tắt
Việc phục hồi hình dạng trong copolymer ether-vinyl acetate (EVA) thương mại đã được phân tích một cách có hệ thống thông qua việc nghiên cứu hiện tượng trượt và hiệu ứng nhớ hình nhiệt (SME). Ảnh hưởng của nhiệt độ lập trình và biến dạng kéo đơn trục tối đa lên tỷ lệ cố định hình dạng và tỷ lệ phục hồi hình dạng đã được nghiên cứu một cách định lượng. Ngoài SME xuất sắc, độ đàn hồi cao và hiện tượng trượt lớn đã được quan sát thấy ở nhiệt độ gần với nhiệt độ phòng (với EVA ở trạng thái thủy tinh). Các cơ chế cơ bản cho các hiện tượng phục hồi hình dạng khác nhau (tức là trượt và SME) được thảo luận. Hai ứng dụng tiềm năng sử dụng tính chất phục hồi hình dạng và độ đàn hồi cao của EVA này được trình bày.
Từ khóa
#EVA #hiệu ứng nhớ hình #phục hồi hình dạng #độ đàn hồi #trượtTài liệu tham khảo
Otsuka K, Wayman CM (eds) (1998) Shape memory materials. Cambridge University Press, Cambridge
Huang WM, Ding Z, Wang CC, Wei J, Zhao Y, Purnawali H (2010) Shape memory materials. Mater Today 13:54–61
Sun L, Huang WM, Ding Z, Zhao Y, Wang CC, Purnawali H, Tang C (2012) Stimulus-responsive shape memory materials: a review. Mater Des 33:577–640
Huang WM, Zhao Y, Wang CC, Ding Z, Purnawali H, Tang C, Zhang JL (2012) Thermo/chemo-responsive shape memory effect in polymers: a sketch of working mechanisms, fundamentals and optimization. J Polym Res 19:9952
Huang W (2002) On the selection of shape memory alloys for actuators. Mater Des 23:11–19
Lendlein A (2010) Shape-memory polymers. Springer, Berlin
Ge YL, Heczko O, Soderberg O, Hannula SP (2006) Magnetic domain evolution with applied field in a Ni-Mn-Ga magnetic shape memory alloy. Scripta Mater 54:2155–2160
Funakubo H (ed) (1987) Shape memory alloys. Gordon and Breach, New York
Miyazaki S, Fu YQ, Huang WM (2009) Thin film shape memory alloys: fundamentals and device applications. Cambridge University Press, New York
Wang CC, Huang WM, Ding Z, Zhao Y, Purnawali H (2012) Cooling-/water-responsive shape memory hybrids. Compos Sci Technol 72:1178–1182
Huang WM, Yang B, An L, Li C, Chan YS (2005) Water-driven programmable polyurethane shape memory polymer: demonstration and mechanism. Appl Phys Lett 86:114105
Jung YC, So HH, Cho JW (2006) Water-responsive shape memory polyurethane block copolymer modified with polyhedral oligometric silsesquioxane. J Macromol Sci B 45:1189–1189
Zhao Y, Wang CC, Huang WM, Purnawali H (2011) Buckling of poly(methyl methacrylate) in stimulus-responsive shape recovery. Appl Phys Lett 99:131911
Zhao CS, Nie SQ, Tang M, Sun SD (2011) Polymeric pH-sensitive membranes—a review. Prog Polym Sci 36:1499–1520
Wang CC, Zhao Y, Purnawali H, Huang WM, Sun L (2012) Chemically induced morphing in polyurethane shape memory polymer micro fibers/springs. React Funct Polym 72:757–764
Willett JL (2008) Humidity-responsive starch-poly(methyl acrylate) films. Macromol Chem Physic 209:764–772
Lendlein A, Jiang HY, Junger O, Langer R (2005) Light-induced shape-memory polymers. Nature 434:879–882
Kumpfer JR, Rowan SJ (2011) Thermo-, photo-, and chemo-responsive shape-memory properties from photo-cross-linked metallo-supramolecular polymers. J Am Chem Soc 133:12866–12874
Hussein H, Harrison D (2008) New technologies for active disassembly: using the shape memory effect in engineering polymers. Int J Prod Dev 6:431–439
Purnawali H, Xu WW, Zhao Y, Ding Z, Wang CC, Huang WM, Fan H (2012) Poly(methyl methacrylate) for active disassembly. Smart Mater Struct 21:075006
Yang FQ, Zhang SL, Li JCM (1997) Impression recovery of amorphous polymers. J Electron Mater 26:859–862
Bianchi O, Oliveira RVB, Fiorio R, Martins JDN, Zattera AJ, Canto LB (2008) Assessment of Avrami, Ozawa and Avrami–Ozawa equations for determination of EVA crosslinking kinetics from DSC measurements. Polym Test 27:722–729
Stelescu MD, Manaila E, Craciun G, Zuga N (2012) Crosslinking and grafting ethylene vinyl acetate copolymer with accelerated electrons in the presence of polyfunctional monomers. Polym Bull 68:263–285
Matsumura K, Hyon SH, Nakajima N, Peng C, Tsutsumi S (2000) Surface modification of poly(ethylene-co-vinyl alcohol) (EVA). Part I. Introduction of carboxyl groups and immobilization of collagen. J Biomed Mater Res 50:512–517
Arun M, Silja PK, Mohanan PV (2011) Evaluation of hydroxyapatite-bioglass and hydroxyapatite-ethyl vinyl acetate composite extracts on antioxidant defense mechanism and genotoxicity: an in vitro study. Toxicol Mech Methods 21:561–566
Tanrattanakul V, Kaewprakob T (2011) Effect of different curing systems on heat shrinkability and mechanical properties of ethylene vinyl acetate/epoxidized natural rubber blends. J Appl Polym Sci 119:38–46
Li FK, Zhu W, Zhang X, Zhao CT, Xu M (1999) Shape memory effect of ethylene-vinyl acetate copolymers. J Appl Polym Sci 71:1063–1070
Tanrattanakul V, Kaewprakob T (2009) Effect of rubber content on mechanical properties and heat shrinkage of ethylene vinyl acetate copolymer blended with epoxidized natural rubber. J Appl Polym Sci 112:1817–1825
Mishra JK, Das CK (2001) Effect of interchain crosslinking on the shrinkability of the blends consisting of grafted poly (ethylene vinyl acetate) and polyurethane elastomer. J Mater Sci Lett 20:1877–1879
Huang WM, Yang B, Zhao Y, Ding Z (2010) Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review. J Mater Chem 20:3367–3381
Huang W, Toh W (2000) Training two-way shape memory alloy by reheat treatment. J Mater Sci Lett 19:1549–1550
Liu N, Huang WM, Phee SJ (2007) A secret garden of micro butterflies: phenomenon and mechanism. Surf Rev Lett 14:1187–1190
Sun L, Huang WM, Wang CC, Zhao Y, Ding Z, Purnawali H (2011) Optimization of the shape memory effect in shape memory polymers. J Polym Sci A Polym Chem 49:3574–3581
Wang CC, Huang WM, Ding Z, Zhao Y, Purnawali H, Zheng LX, Fan H, He CB (2012) Rubber-like shape memory polymeric materials with repeatable thermal-assisted healing function. Smart Mater Struct 21:115010
Xie T, Xiao XC, Li JJ, Wang RM (2010) Encoding localized strain history through wrinkle based structural colors. Adv Mater 22:4390–4394
Li J, Shim JM, Deng J, Overvelde JTB, Zhu XL, Bertoldi K, Yang S (2012) Switching periodic membranes via pattern transformation and shape memory effect. Soft Matter 8:10322–10328
Li JJ, An YH, Huang R, Jiang HQ, Xie T (2012) Unique aspects of a shape memory polymer as the substrate for surface wrinkling. ACS Appl Mater Interfaces 4:598–603
Zhao Y, Huang WM, Wang CC (2012) Thermo/chemo-responsive shape memory effect for micro/nano surface patterning atop polymers. Nanosci Nanotechnol Lett 4:862–878
Liu N, Xie Q, Huang WM, Phee SJ, Guo NQ (2008) Formation of micro protrusion arrays atop shape memory polymer. J Micromech Microeng 18:027001
Sun L, Huang WM (2010) Mechanisms of the multi-shape memory effect and temperature memory effect in shape memory polymers. Soft Matter 6:4403–4406
Xie T (2010) Tunable polymer multi-shape memory effect. Nature 464:267–270
PR China patent application No. 201210480325.5
PR China patent application No. 201210206952.X
Sun L, Huang WM (2010) Thermo/moisture responsive shape-memory polymer for possible surgery/operation inside living cells in future. Mater Des 31:2684–2689
