Laser-Induced Shape Memory Polymer Actuator Used in a Deployable Display

2013 ◽  
Vol 333-335 ◽  
pp. 1926-1929 ◽  
Author(s):  
Da Wei Zhang ◽  
Jia Jia Zhang ◽  
Rui Wei ◽  
Jing Wen Xia ◽  
Dan Ni Jiao ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Shape Memory ◽  
Shape Memory Polymer ◽  
Electronic Equipment ◽  
New Method ◽  
Infrared Light ◽  
Back Side ◽  
Flexible Display ◽  
Flexible Displays ◽  
Polymer Actuator

Deployable flexible displays attract a great attention recently. The flexible display used on electronic equipment have been developed, which can deploy to reveal a much larger screen or rolled up. However, one of major problems is its actuation of deployment and fixture. In this paper, a deployable display actuated by the SMP actuator is proposed. The shape memory polymer (SMP) actuator, which is considered to be attached to the back side of a flexible display, is used to deploy and fix the flexible display. A new method of laser-induced actuation of SMP actuator is investigated. By this method, the SMP can be induced by infrared light transmitted through a treated optical fiber embedded in the actuator.

Infrared light-active shape memory polymer filled with nanocarbon particles

2009 ◽  
Vol 114 (4) ◽  
pp. 2455-2460 ◽  
Author(s):  
Jinsong Leng ◽  
Xuelian Wu ◽  
Yanju Liu
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Infrared Light ◽  
Active Shape

RECENT PROGRESSES IN POLYMERIC SMART MATERIALS

2010 ◽  
Vol 24 (15n16) ◽  
pp. 2351-2356 ◽  
Author(s):  
YAN-JU LIU ◽  
XIN LAN ◽  
HAI-BAO LU ◽  
JIN-SONG LENG
Keyword(s):  
Shape Memory ◽  
Smart Materials ◽  
Shape Recovery ◽  
Shape Memory Polymer ◽  
Strain Energy Function ◽  
Electroactive Polymer ◽  
Electrically Conductive ◽  
Wide Range ◽  
Polymer Actuator ◽  
Analysis Of Stability

Smart materials can be defined as materials that sense and react to environmental conditions or stimuli. In recent years, a wide range of novel smart materials have been developed in biomaterials, sensors, actuators, etc. Their applications cover aerospace, automobile, telecommunications, etc. This paper presents some recent progresses in polymeric smart materials. Special emphasis is laid upon electroactive polymer (EAP), shape memory polymer (SMP) and their composites. For the electroactive polymer, an analysis of stability of dielectric elastomer using strain energy function is derived, and one type of electroactive polymer actuator is presented. For the shape memory polymer, a new method is developed to use infrared laser to actuate the SMP through the optical fiber embedded within the SMP. Electrically conductive nanocarbon powders are utilized as the fillers to improve the electrical conductivity of polymer. A series of fundamental investigations of electroactive SMP are performed and the shape recovery is demonstrated.

A reconfigurable, self-healing and near infrared light responsive thermoset shape memory polymer

2020 ◽  
Vol 187 ◽  
pp. 107940 ◽  
Author(s):  
Yongkang Bai ◽  
Jiwen Zhang ◽  
Didi Wen ◽  
Peiwei Gong ◽  
Jiamei Liu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
Infrared Light ◽  
Self Healing ◽  
Near Infrared Light

Near-Infrared Light Triggered Soft Actuators in Aqueous Media Prepared from Shape-Memory Polymer Composites

2016 ◽  
Vol 301 (9) ◽  
pp. 1111-1120 ◽  
Author(s):  
Liang Fang ◽  
Tianyu Fang ◽  
Xiaoxia Liu ◽  
Shunping Chen ◽  
Chunhua Lu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Polymer Composites ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
Aqueous Media ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Soft Actuators

Manufacturing of a Shape Memory Polymer Actuator

2015 ◽  
Author(s):  
Loredana Santo ◽  
Giovanni Matteo Tedde ◽  
Fabrizio Quadrini
Keyword(s):  
Shape Memory ◽  
Shape Recovery ◽  
Active Element ◽  
Shape Memory Polymer ◽  
Applied Pressure ◽  
Maximum Load ◽  
Medium Size ◽  
Cylindrical Shape ◽  
Polymer Actuator ◽  
Recovery Temperature

Shape memory polymer (SMP) foams can be used to manufacture actuators with tailored actuation rate. Being related to foam shape recovery by heating, SMP actuator operates by conversion of heat into motion. In the current study, a SMP linear actuator has been manufactured which is able to apply a maximum load of 50 N (depending on the recovery temperature) and a maximum stroke up to 30 mm. The actuator had a cylindrical shape and its piston had a diameter of 16 mm, therefore a maximum applied pressure about 2.5 bar. The active element (i.e. SMP foam) was produced by solid state foaming of an epoxy resin, and its shaping was performed in the same metallic frame of the actuator. Results show that small and medium-size actuators can be easily produced and operated.

scholarly journals Near-Infrared Light-Responsive Shape Memory Polymer Fabricated from Reactive Melt Blending of Semicrystalline Maleated Polyolefin Elastomer and Polyaniline

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3984
Author(s):  
Min-Su Heo ◽  
Tae-Hoon Kim ◽  
Young-Wook Chang ◽  
Keon Soo Jang
Keyword(s):  
Shape Memory ◽  
Near Infrared ◽  
Shape Memory Polymer ◽  
Structural Features ◽  
Infrared Light ◽  
Melt Mixing ◽  
Transmission Electron ◽  
Polyolefin Elastomer ◽  
Physically Crosslinked ◽  
Internal Mixer

A shape memory polymer was prepared by melt mixing a semicrystalline maleated polyolefin elastomer (mPOE) with a small amount of polyaniline (PANI) (up to 15 wt.%) in an internal mixer. Transmission electron microscopy (TEM), FTIR analysis, DMA, DSC, melt rheological analysis, and a tensile test were performed to characterize the structure and properties of the mPOE/PANI blends. The results revealed that the blends form a physically crosslinked network via the grafting of PANI onto the mPOE chains, and the PANI dispersed at the nanometer scale in the POE matrix served as a photo-thermal agent and provided increased crosslinking points. These structural features enabled the blends to exhibit a shape memory effect upon near-infrared (NIR) light irradiation. With increasing PANI content, the shape recovery rate of the blend under NIR stimulation was improved and reached 96% at 15 wt.% of PANI.

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