Two‐way multi‐shape memory properties of peroxide crosslinked ethylene vinyl‐acetate copolymer (EVA)/polycaprolactone (PCL) blends

Two‐way multi‐shape memory properties of peroxide crosslinked ethylene vinyl‐acetate... Rare studies have investigated on the 2‐way shape memory crosslinked blends with multiple shape memory behavior up to date. To consider the merit of commercial cost‐competitive crystalline polymers, ethylene vinyl‐acetate copolymer (EVA)/polycaprolactone (PCL) blends (60/40 and 30/70) were peroxide‐cured to form the 2‐way multi‐shape memory crosslinked blends using a melt‐blending method. Both resins were selected to have a similar controlled crosslinking degree, which allowed us to distinctly evaluate their actuation contributions from the cooling‐induced elongation (crystallization) and from the entropy‐driven elongation during cooling process, respectively. In the 2‐way process for the 60/40 system, 2 respective peaks contributed from the cooling‐induced crystallization of EVA and PCL in the cooling curves based on the strain derivate rates at various temperatures were observed. After the cooling process under the loading stress of 150 kPa, the 2‐step heating‐induced contraction process with increasing temperature started at 54.1°C above the melting temperature of PCL at 52.3°C and EVA at 78.3°C, demonstrating 2‐way multi‐shape memory behavior. The multi‐step behavior was more prominent at higher PCL composition and higher load for the 30/70 system. It was found that the entropy‐driven contribution to the overall actuation magnitude increased with increasing nominal loads due to the increased orientation of molecular networks in the blends. The current approach offers numerous possibilities in preparing 2‐way multi‐shape memory crosslinked blends. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymers for Advanced Technologies Wiley

Two‐way multi‐shape memory properties of peroxide crosslinked ethylene vinyl‐acetate copolymer (EVA)/polycaprolactone (PCL) blends

15 pages
Read Article

Loading next page...
 
/lp/wiley/two-way-multi-shape-memory-properties-of-peroxide-crosslinked-ethylene-v8gH0aOYJh
Publisher site
See Article on Publisher Site

Abstract

Rare studies have investigated on the 2‐way shape memory crosslinked blends with multiple shape memory behavior up to date. To consider the merit of commercial cost‐competitive crystalline polymers, ethylene vinyl‐acetate copolymer (EVA)/polycaprolactone (PCL) blends (60/40 and 30/70) were peroxide‐cured to form the 2‐way multi‐shape memory crosslinked blends using a melt‐blending method. Both resins were selected to have a similar controlled crosslinking degree, which allowed us to distinctly evaluate their actuation contributions from the cooling‐induced elongation (crystallization) and from the entropy‐driven elongation during cooling process, respectively. In the 2‐way process for the 60/40 system, 2 respective peaks contributed from the cooling‐induced crystallization of EVA and PCL in the cooling curves based on the strain derivate rates at various temperatures were observed. After the cooling process under the loading stress of 150 kPa, the 2‐step heating‐induced contraction process with increasing temperature started at 54.1°C above the melting temperature of PCL at 52.3°C and EVA at 78.3°C, demonstrating 2‐way multi‐shape memory behavior. The multi‐step behavior was more prominent at higher PCL composition and higher load for the 30/70 system. It was found that the entropy‐driven contribution to the overall actuation magnitude increased with increasing nominal loads due to the increased orientation of molecular networks in the blends. The current approach offers numerous possibilities in preparing 2‐way multi‐shape memory crosslinked blends.

Journal

Polymers for Advanced Technologies – Wiley

Published: Jan 1, 2018

Keywords: ; ; ; ;

References

  • Recent advances in shape memory polymers and composites: a review
    Ratna, D; Karger‐Kocsis, J
  • Shape‐memory polymers and their composites: stimulus methods and applications
    Leng, J; Lan, X; Liu, Y; Du, S
  • A review of stimuli‐responsive shape memory polymer composites
    Meng, H; Li, G
  • Shape memory polymer nanocomposites: nano‐reinforcement and multifunctionalization
    Lu, H; Lei, M; Yao, Y; Yu, K; Fu, YQ
  • Shape‐memory polymers for multiple applications in the materials world
    Pilate, F; Toncheva, A; Dubois, P; Raquez, J‐M
  • Thermomechanical properties in a thin film of shape memory polymer of polyurethane series
    Tobushi, H; Hara, H; Yamada, E; Hayashi, S
  • Thermomechanical properties of polyurethane‐shape memory polymer foam
    Tobushi, H; Okumura, K; Endo, M; Hayashi, S
  • Hydrolytic degradation and functional stability of a segmented shape memory poly(ester urethane)
    Pretsch, T; Jakob, I; Müller, W
  • Poly(ester urethane) with varying polyester chain length: polymorphism and shape‐memory behavior
    Bothe, M; Emmerling, F; Pretsch, T
  • Liquid crystal elastomers with mechanical properties of a muscle
    Thomsen, D; Keller, P; Naciri, J
  • Spontaneous thermal expansion of nematic elastomers
    Tajbakhsh, AR; Terentjev, EM
  • Two‐way reversible shape memory in a semicrystalline network
    Chung, T; Rorno‐Uribe, A; Mather, P
  • Reversible triple‐shape effect of polymer networks containing polypentadecalactone‐and poly(ε‐caprolactone)‐segments
    Zotzmann, J; Behl, M; Hofmann, D; Lendlein, A
  • Two‐way shape changes of a shape‐memory poly(ester urethane)
    Bothe, M; Pretsch, T
  • Bidirectional actuation of a thermoplastic polyurethane elastomer
    Bothe, M; Pretsch, T
  • Reversible bidirectional shape‐memory polymers
    Behl, M; Kratz, K; Zotzmann, J; Nöchel, U; Lendlein, A
  • Two‐way shape memory behavior of semi‐crystalline elastomer under stress‐free condition
    Qian, C; Dong, Y; Zhu, Y; Fu, Y
  • Polyolefin thermoplastics for multiple shape and reversible shape memory
    Gao, Y; Liu, W; Zhu, S
  • A facile approach toward scalable fabrication of reversible shape‐memory polymers with bonded elastomer microphases as internal stress provider
    Fan, LF; Rong, MZ; Zhang, MQ; Chen, XD
  • Two‐way reversible shape memory effects in a free‐standing polymer composite
    Westbrook, KK; Mather, PT; Parakh, V
  • Two‐way shape memory effect in polymer laminates
    Chen, S; Hu, J; Zhuo, H; Zhu, Y
  • Two‐way shape memory polymer with “switch‐spring” composition by interpenetrating polymer network
    Wu, Y; Hu, J; Han, J
  • Semi‐crystalline two‐way shape memory elastomer
    Li, J; Rodgers, WR; Xie, T
  • Temperature‐memory polymer actuators
    Behl, M; Kratz, K; Noechel, U; Sauter, T; Lendlein, A
  • Two‐way reversible shape memory behaviour of crosslinked poly(ε‐caprolactone)
    Pandini, S; Passera, S; Messori, M
  • One‐way and two‐way shape memory behaviour of semi‐crystalline networks based on sol‐gel cross‐linked poly(ε‐caprolactone)
    Pandini, S; Baldi, F; Paderni, K
  • Excellent electroactive shape memory performance of EVA/PCL/CNT blend composites with selectively localized CNTs
    Zhang, Z‐X; Wang, W‐Y; Yang, J‐H; Zhang, N; Huang, T; Wang, Y
  • The co‐continuous morphology of biocompatible ethylene‐vinyl acetate copolymers/poly(Ε‐caprolactone) blend: effect of viscosity ratio and vinyl acetate content
    Wu, D; Zhang, J; Zhang, M; Zhou, W; Lin, D
  • Ethylene vinyl acetate and polycaprolactone‐organoclay nanocomposite: thermal mechanical and morphological properties
    Dlamini, DS; Mishra, SB; Mishra, AK; Mamba, BB
  • Effect of PCL and EVA molar mass on the development of sustainable polymers
    Moura, I; Nogueira, R; Bounor‐Legare, V; Machado, AV
  • Synergistic effect of EG and cloisite 15A on the thermomechanical properties and thermal conductivity of EVA/PCL blend
    Tsotetsi, TA; Mochane, MJ; Motaung, TE; Gumede, TP; Linganiso, ZL
  • Morphology‐controlled multiple one‐ and two‐way shape‐memory behavior of cross‐linked polyethylene/poly(ε‐caprolactone) blends
    Kolesov, I; Dolynchuk, O; Borreck, S; Radusch, H‐J
  • Shape‐memory behavior of cross‐linked semi‐crystalline polymers and their blends
    Kolesov, I; Dolynchuk, O; Radusch, H‐J
  • Triple‐shape memory properties of thermoplastic polyurethane/olefin block copolymer/polycaprolactone blends
    Lai, S‐M; You, P‐Y; Chiu, YT; Kuo, CW
  • Transport of water and gases through EVA/PVC blend films–permeation and DSC investigations
    Marais, S; Bureau, E; Gouanve´, F
  • Preparation and characterization of shape memory elastomeric composites
    Luo, X; Mather, PT
  • A tough shape memory polymer with triple‐shape memory and two‐way shape memory properties
    Bai, Y; Zhang, X; Wang, Q; Wang, T
  • Shape memory composites based on glass‐fibre‐reinforced poly(ethylene)‐like polymers
    Cuevas, JM; Rubio, R; Germán, L
  • Energy storage capacity of shape‐memory polymers
    Anthamatten, M; Roddecha, S; Li, J
  • Isothermal crystallization kinetics and thermal behavior of poly(ε‐caprolactone)/multi‐walled carbon nanotube composites
    Chen, E‐C; Wu, T‐M

You’re reading a free preview. Subscribe to read the entire article.

Try 2 weeks free now

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

or browse the journals available

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off

Sign up
for free
Start 14 day
Free Trial