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Preparation of Azidated Polybutadiene(Az-PBD)/Ethylene-Vinyl Acetate Copolymer(EVA) Blends for the Application of Energetic Thermoplastic Elastomer
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  • Journal title : Korean Chemical Engineering Research
  • Volume 53, Issue 3,  2015, pp.282-288
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2015.53.3.282
 Title & Authors
Preparation of Azidated Polybutadiene(Az-PBD)/Ethylene-Vinyl Acetate Copolymer(EVA) Blends for the Application of Energetic Thermoplastic Elastomer
Yoon, Sang Won; Choi, Myung Chan; Chang, Young-Wook; Noh, Si-Tae; Kwon, Soon Kil;
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 Abstract
A new energetic thermoplastic elastomer based on the azidated polybutadiene(Az-PBD)/ethylene vinyl acetate copolymer (EVA) blends was prepared, and structure and properties of the blends were invetigated by SEM, DSC, DMA, tensile testing and combustion test. The Az-PBD was synthesized via a two-step process involving the addition reaction of commercially available 1,2-PBD with and subsequent nucleophilic substitution reaction of the brominated PBD with . EVA/Az-PBD with 90/10, 80/20, 70/30 (wt/wt) was prepared by a solution blending. SEM, DSC, and DMA results revealed that the blends are partially compatible and Az-PBD is dispersed in continuous EVA matrix. Tensile test showed that modulus and tension set increased while elongation-at-break of the blends decreased with increasing Az-PBD content in the blends, but all the blends showed a elongation at break as high as 700% and a tension set of less than 5%, indicating that the blends are typically elastomeric. Combustion test showed that, with increasing Az-PBD content in the blend, higher energy can be released.
 Keywords
Energetic Thermoplastic Elastomer (ETPE);Azidated Polybutadiene (Az-PBD);Ethylene-vinyl Acetate (EVA);Blend;
 Language
Korean
 Cited by
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