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Thermally Trigged Self-Healing Smart Shape Memory Polymer Composite

Krishan Kumar Patel, Harishchandra Patel, Pankaj Pandey, Jitendra Pandey, T. Rajasanthosh Kumar, Rakesh Singh


Temperature-responsive self-actuating PU/MWCNTs composites were prepared with micro-compounder through in-situ polymerization. For making of 1CNTPU composite sample 1 part per hundred multiwall Carbone nanotubes (MWCNTs) were reinforced into the neat polyurethane (PU) base matrix. Surface characterizations for pure and composite have studying by using Atomic Force Microscope (AFM), high resolutions Scanning Electron Microscopy (SEM). Properties like shape recovery, storage modulus, loss modulus, tensile stress, degree of hardness, and flexural stress were significantly enhanced for 1CNTPUdesignation composite sample. Temperature-responsive shape recoverable tests have exhibited by using excellent-quality Infrared (IR) Thermal Imager. Shape memorised polymer composite has using various self-actuating, sensor and actuators, and remote sensing smart devices nowadays. Shape memory and mechanical properties both were studied and it was found that, for composite sample the properties is superior as comparatively neat polyurethane sample. Shape memory properties like Storage modulus, loss modulus, and shape recovery also improved for composite sample. The 99% thermal shape recovery within 60 seconds was observed for 1 CNTPU sample whereas, only 70% shape recovery within 60 seconds for pure polyurethane sample. the glass transition temperature also influence by the crystallinity nature of reinforced particles in neat polyurethane matrix. Glass transition (Tg) temperature has improved due to the reinforcement of 1 phr multiwall CNTs in the pure PUs matrix which increase the crystallinity nature of composite sample and reduces the amorphous nature.


AFM; Thermal imager; Self-actuating polymer; Shape memory polymer; Glass transition temperature; composite

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Hager, M. D., Bode, S., Weber, C., memory polymers: past, present and future developments. Progress in Polymer Science. 2015; 49-50: 3-33.

Pilate, F., Toncheva, A., Dubois, P., polymers for multiple applications in the materials world. European Polymer Journal. 2016; 80: 268-294.

Liu, C., Qin, H., Mather, P. T. Review of progress in shape-memory polymers. Journal of materials chemistry. 2007; 17(16): 1543-1558.

Patel, K. K., Purohit, R. Future Prospects of shape memory polymer nano-composite and epoxy-based shape memory polymer-A review. Materials Today: Proceedings. 2018; 5(9):20193-20200.

Meng, H., Li, G. A review of stimuli-responsive shape memory polymer composites. Polymer. 2013; 54(9): 2199-2221.

Belmonte, A., Lama, G. C., Gentile, G., Thermally-triggered free-standing shape-memory actuators. European Polymer Journal. 2017; 97: 241-252.

Merline, J. D., Nair, C. R., Gouri, C., Polyether polyurethanes: Synthesis, characterization, and thermo responsive shape memory properties. Journal of applied polymer science. 2008; 107(6): 4082-4092.

Chen, H., Li, Y., Liu, Y., Highly pH-sensitive polyurethane exhibiting shape memory and drug release. Polymer Chemistry. 2014; 5(17): 5168-5174.

Cao, F., Jana, S. C. Nanoclay-tethered shape memory polyurethane nanocomposites. Polymer. 2007; 48(13): 3790-3800.

Huang, W. M., Yang, B., Zhao, Y., Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review. Journal of materials chemistry. 2010; 20(17): 3367-3381.

Park, J., Dao, T., Lee, H. I., Properties of graphene/shape memory thermoplastic polyurethane composites actuating by various methods. Materials. 2014; 7(3): 1520-1538.

Huang, W. M., Yang, B., An, L., Water-driven programmable polyurethane shape memory polymer: demonstration and mechanism. Applied Physics Letters. 2005; 86(11): 114105.

Liu, X., Li, H., Zeng, Q., Electro-active shape memory composites enhanced by flexible carbon nanotube/graphene aerogels. Journal of Materials Chemistry A. 2015; 3(21): 11641-11649.

Patel, K. K., Purohit, R. Improved shape memory and mechanical properties of microwave-induced thermoplastic polyurethane/graphenenanoplatelets composites. Sensors and Actuators A: Physical. 2019; 285: 17-24.

Gupta, G. K., Patel, K. K., Purohit, R., Effect Of Rolling On Ni-Ti-Fe Shape Memory Alloys Prepared Through Novel Powder Metallurgy Route. Materials Today: Proceedings. 2017; 4(4): 5385-5397.

Purohit, R., Patel, K. K., Gupta, G. K., Development of Ni-Ti Shape Memory Alloys through Novel Powder Metallurgy Route and Effect of Rolling on their properties. Materials Today: Proceedings. 2017; 4(4): 5330-5335.

Yang, B., Huang, W. M., Li, C., of moisture on the thermomechanical properties of a polyurethane shape memory polymer. Polymer. 2006; 47(4): 1348-1356.

Patel, K. K., Purohit, R. Dispersion of SiO2 Nano Particles on Epoxy Based Polymer Nano Composites and its Characterization. Oriental Journal of Chemistry. 2018; 34(6): 2998-3003.

Patel, K. K., Purohit, R., Hashmi, S. A. R., Development of Nano SiO2 Particles Dispersed Shape Memory Epoxy Composites. Applied Innovative Research. 2019; 1: 21-24.

Jin Yoo, H., Chae Jung, Y., Gopal Sahoo, N., Polyurethane‐Carbon nanotube nanocomposites prepared by in‐situ polymerization with electroactive shape memory. Journal of Macromolecular Science, Part B. 2006; 45(4): 441-451.

Gupta, R. K., Hashmi, S. A. R., Patel, K. K., Development of Graphene Nanoplatelets Reinforced Shape Memory Polyurethane and Their DMA Studies. AIR. 2019; 1(1): 78-82.

Gu, S., Yan, B., Liu, L., Carbon nanotube–polyurethane shape memory nanocomposites with low trigger temperature. European Polymer Journal. 2013; 49(12): 3867-3877.

KRISHAN KUMAR PATEL, RAJESH PUROHIT, S.A.R. HASHMIAND, Influence of Moisture on Shape Memory and Mechanical Properties of Microwave-induced Shape Memory Polyurethane (PU)/grapheneNanoplatelets (GNPs) Composite. J. Polym. Mater. 2018; 35(4): 449-462. DOI:


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