Record Details

<strong>Influence of soft segments on thermo-mechanical behaviour of novel epoxy based shape memory polymers</strong>

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement <strong>Influence of soft segments on thermo-mechanical behaviour of novel epoxy based shape memory polymers</strong>
 
Added Entry - Uncontrolled Name Rao, Kavitha Vallish; National Aerospace Laboratories,
Rao, Sandhya ; NAL, Bangalore
A, Revathi ; NAL, Bangalore
G N, Dayananda ; NAL , Bangalore
 
Uncontrolled Index Term Epoxy; Shape memory polymer; Soft segment; Glass transition temperature; Thermo-mechanical; Tg tailoring
 
Summary, etc. Epoxy based Shape Memory Polymers (SMEPs) have been formulated by reacting an aerospace grade aromatic epoxy resin with aliphatic amines. TETA (triethylenetetramine) series and TTD (trioxatridecanediamine) series SMEPs with varying soft segment contents and with glass transition temperatures (T<sub>g</sub>s) rangingfrom 103-51°C have been obtained. The viscoelastic behaviour of SMEPs has been investigated using an Advanced Rheometric Expansion System (ARES). For the thermomechanical tests, the respective T<sub>g</sub> of each SMEP has been fixed as the deformation as well as recovery temperature (shape switching temperature).Further, the effect of soft segments on thermo-mechanical shape memory behaviour of the SMEPs has been evaluated. The results reveal that TTD series SMEP with maximum soft-segment content exhibit a narrow viscoelastic region, complete shape recovery and very good shape memory behaviour. Thus based on specific applications the soft segment content may be varied suitably.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2018-07-05 13:43:53
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJCT/article/view/14770
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 25, ##issue.no## 1 (2018): Indian Journal of Chemical Technology
 
Language Note en