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Mechanical Properties of Polymers and Composites

TL;DR: In this article, the authors discuss various mechanical properties of fiber-filled composites, such as elastic moduli, creep and stress relaxation, and other mechanical properties such as stress-strain behavior and strength.
Abstract: Mechanical Tests and Polymer Transitions * Elastic Moduli * Creep and Stress Relaxation * Dynamical Mechanical Properties * Stress-Strain Behaviour and Strength * Other mechanical Properties * Particulate-Filled Polymers * Fiber- Filled Composites and Other Composites.
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Journal ArticleDOI
TL;DR: In this paper, a new energetic plasticizer, 2,2-dinitro-1,3-bis-nitrooxy-propane (NPN), has been characterized.
Abstract: Summary A new energetic plasticizer, 2,2-dinitro-1,3-bis-nitrooxy-propane (NPN), has been characterized. Its high oxygen balance, 12.5%, andlow glass transition temperature, 81.5C (midpoint), makes it very attractive as an energetic plasticizer in solid propellants. The ability of NPN to lower the glass transition temperature andviscosity of uncuredPolyNIMMO has been studied and compared to other energetic plasticizers, such as BDNPA/F andbutyl-NENA. NPN has a similar plasticizing effect as butyl-NENA, both on depressing the glass transition temperature andlowering the viscosity. To increase the poor thermal stability of NPN, several conventional nitrocellulose/nitroglycerine stabilizers were evaluated. Further work is however needed to finda more effective stabilizer.

42 citations

Journal ArticleDOI
TL;DR: Dental researchers analyzing shrinkage stress problems by mathematical modeling can obtain a good quantitative estimate of theshrinkage stress development of Z100 before the restoration is actually made.

42 citations

Journal ArticleDOI
TL;DR: In this paper, the viscosity of ferrite-filled polymers at high levels of loading has been investigated and the differences in relative viscosities between the filled and unfilled systems for various matrices have been explained on the basis of polymer filler affinity and filler-filler interaction.
Abstract: This paper presents new experimental data on the viscosity of ferrite-filled polymers at high levels of loading. The choice of matrix and the choice of filler and filler loading has direct relevance to commercially important systems of magnetic plastics and rubbers. The effect of shear rate, concentration, and temperature on the rheological behavior of such highly loaded systems has been discussed in detail. The differences in the relative viscosities between the filled and unfilled systems for various matrices have been explained on the basis of polymer filler affinity and filler-filler interaction.

42 citations

Journal ArticleDOI
TL;DR: In this article, a 1:1 molar mixture of difunctional acrylate-oxetane mixture was prepared starting from 2,2-Bis(4-(3-acryloxy-2-hydroxypropoxy)phenyl)propane (BPADA) and 3-ethyl-3-{[(3-ethyloxetan-3yl)methoxy]methyl}oxetANE (OXT-221, DOX).

42 citations

Journal ArticleDOI
01 Jun 1996-Polymer
TL;DR: In this paper, a series of poly(tetramethylene ether) glycol α,ω-diacrylates have been prepared from the corresponding hydroxy-terminated oligomers.

42 citations