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A multi-element constitutive model for a lactide-based shape memory polymer has been developed that represents loading to large tensile deformations, stress relaxation and stress recovery at 60, 65 and 70°C. The model consists of parallel M
A multi-element constitutive model for a lactide-based shape memory polymer has been developed that represents loading to large tensile deformations, stress relaxation and stress recovery at 60, 65 and 70°C. The model consists of parallel M
Externí odkaz:
http://hdl.handle.net/10454/9904
Solid phase orientation of polymers is one of the most successful routes to enhancement of polymer properties. It unlocks the potential of molecular orientation for the achievement of a range of enhanced physical properties. We provide here an overvi
Externí odkaz:
http://hdl.handle.net/10454/9638
Hydrolytic degradation studies have been undertaken on Maxon B, a bioresorbable block copolymer of polyglycolic acid (PGA) and polytrimethylene carbonate (TMC). Isotropic and oriented samples were studied by dynamic mechanical measurements over a wid
Externí odkaz:
http://hdl.handle.net/10454/3171
Biaxially oriented polypropylene pipes: implications for impact and hydrostatic pressure resistance.
The Leeds die drawing process has been used to produce biaxially oriented polypropylene pipes with significant enhancement of hoop mechanical properties in terms of tensile modulus and tensile strength owing to a unique orientation of the ¿ crystall
Externí odkaz:
http://hdl.handle.net/10454/3447
Autor:
Ward, Ian M., Kaschmitter J,J., Thompson, Glen P., Wellings, Simon C., Hubbard, H.V.St.A., Wang, H.P.
Polymer gel electrolytes (PGE) based on polyvinylidene fluoride (PVDF), lithium salts and appropriate solvent systems, developed at Leeds University, have been shown to form tough rigid films with conductivities approaching 10¿2 S cm¿1. A continuou
Externí odkaz:
http://hdl.handle.net/10454/3332
The deformation behavior of a particular grade of high-density polyethylene prepared in a number of different ways has been examined. The samples all have an initially isotropic crystalline texture but differ in the levels of network preorientation s
Externí odkaz:
http://hdl.handle.net/10454/3884
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