The inverse engineering method is more appropriate for thermoplastic polymers since it considers the practical volume change of the material during biaxial tension deformation. The strategy of data processing was established to obtain biaxial tension true stress-strain curves of different thermoplastic ...
What is the final creep strain at 10,000 min for a polymer if the stress was doubled at 100 min? The starting stress was 5 MPa. The compliance of this polymer as a function of time is shown below. Sign in to download full-size image Solution: After assuming that the Boltzmann superpo...
of the platform temperature up to 100 °C have led to increase the degree of crystallinity of PLA polymer, as presented in Figure11and Table8, due to a decrease of its crystallization kinetics (speed for instance). The PLA crystallinity degree was calculated with a melting enthalpy of 100%...
Vinay Panwar, Kaushik Pal, in Clay-Polymer Nanocomposites, 2017 1.5.5 Tensile Measurements of Thin Films and Fibers DMA also provides a facility for stress–strain measurements in thin films and fibers using film/fiber tension clamps. It has been found very effective in evaluating the mechanical ...
The molecular weight of the present precursor polymer is much above the expected entanglement molecular weight [≤12,000 g/mol for poly(ethyl acrylate)29] and the dispersity of chain length is broad due to the free radical polymerization. Therefore, some portions of the network strand are ...
The aim of this study was to examine the feasibility of using a new low-modulus biodegradable thermoplastic elastomer for in vivo application as a stent co... B Asplund,J Sperens,Torbjrn Mathisen,... - 《Journal of Biomaterials Science Polymer Edition》 被引量: 79发表: 2006年 Mechanical ...
- 《Polymer Testing》 被引量: 62发表: 2007年 Structural integrity evaluation based on an innovative field indentation microprobe Excellent agreement was obtained between yield strength and flow properties (true-stress/true-plastic-strain curve) measured by the ABI tests and those of ... FM Haggag...
In the case of thermoset coatings the diffusion of solvent becomes progressively more difficult as the polymer network develops and release of solvent may proceed for an extended period of time. When AB was overcoated on top of a dry AA coating, solvent release from AB was not only into the...
For composites of high F, the steady-state modulus decreases with increasing λamp. This behaviour suggests that particles form a percolated network and that large stretches induce changes in the microstructure, such as partial debonding between particles and polymers, breaking polymer chains, or ...
4. An article according to claim 1, wherein the at least one void-filling layer comprises 30% to 80% by weight of an elastomeric polymer selected from EPDM, polybutadiene, nitrile rubbers, butyl rubbers, polyisobutylene, amorphous polypropylene, thermoplastic elastomers, and blends thereof, and ...