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4D Printing of Smart Polymer Nanocomposites: Integrating Graphene and Acrylate Based Shape Memory Polymers
- Source :
- Polymers, Volume 13, Issue 21, Polymers, Vol 13, Iss 3660, p 3660 (2021)
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- The ever-increasing demand for materials to have superior properties and satisfy functions in the field of soft robotics and beyond has resulted in the advent of the new field of four-dimensional (4D) printing. The ability of these materials to respond to various stimuli inspires novel applications and opens several research possibilities. In this work, we report on the 4D printing of one such Shape Memory Polymer (SMP) tBA-co-DEGDA (tert-Butyl Acrylate with diethylene glycol diacrylate). The novelty lies in establishing the relationship between the various characteristic properties (tensile stress, surface roughness, recovery time, strain fixity, and glass transition temperature) concerning the fact that the print parameters of the laser pulse frequency and print speed are governed in the micro-stereolithography (Micro SLA) method. It is found that the sample printed with a speed of 90 mm/s and 110 pulses/s possessed the best batch of properties, with shape fixity percentages of about 86.3% and recovery times as low as 6.95 s. The samples built using the optimal parameters are further subjected to the addition of graphene nanoparticles, which further enhances all the mechanical and surface properties. It has been observed that the addition of 0.3 wt.% of graphene nanoparticles provides the best results.
- Subjects :
- Acrylate
Nanocomposite
Materials science
Polymers and Plastics
Graphene
graphene
Soft robotics
Organic chemistry
4D printing
General Chemistry
Smart polymer
Article
law.invention
Shape-memory polymer
chemistry.chemical_compound
shape memory polymer
QD241-441
chemistry
law
strain fixity
Surface roughness
Composite material
Glass transition
Subjects
Details
- Language :
- English
- ISSN :
- 20734360
- Database :
- OpenAIRE
- Journal :
- Polymers
- Accession number :
- edsair.doi.dedup.....e41d5627124286fe4f82428a769c55ef
- Full Text :
- https://doi.org/10.3390/polym13213660