نتایج جستجو برای: plastic composite with desired mechanical properties

تعداد نتایج: 9700439  

Journal: :Acta pharmaceutica 2005
Oluwatoyin A Odeku

Albizia gum has been evaluated as a binding agent in tablet formulations in comparison with gelatin BP. Compressional properties were analyzed using density measurements and the compression equations of Heckel and Kawakita as assessment parameters, while the mechanical properties of the tablets were assessed using the crushing strength and friability of the tablets. Drug release properties of t...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
abdolhossien aghababaei reza kasaai

pollution arising from plastic waste materials caused a great worry for researchers who are interested in protection of environment. this problem shifts their subject to bio-polymers for applications in packaging industries. however, their low water barrier properties are a critical problem. the effects of citric acid and methyl cellulose on water vapor and oxygen permeabilities and mechanical ...

Journal: :international journal of nano dimension 0
b. pépin-donat laboratoire d’electronique moléculaire organique et hybride / umr 5819 spram (cea-cnrs-ujf) / drfmc / cea-grenoble, 38054 grenoble cedex 9 (france). c. campillo laboratoire d’electronique moléculaire organique et hybride / umr 5819 spram (cea-cnrs-ujf) / drfmc / cea-grenoble, 38054 grenoble cedex 9 (france). f. quemeneur laboratoire d’electronique moléculaire organique et hybride / umr 5819 spram (cea-cnrs-ujf) / drfmc / cea-grenoble, 38054 grenoble cedex 9 (france). m. rinaudo centre de recherches sur les macromolécules végétales (cermav-cnrs) affiliated with joseph fourier university, bp53, 38041 grenoble cedex 9 (france). c. marques institut charles sadron, up22 cnrs ulp, 67083 strasbourg cedex, france. a. schröder institut charles sadron, up22 cnrs ulp, 67083 strasbourg cedex, france. g. maret

giant unilamellar vesicles (guvs) consisting in self-closed lipid bilayers of 0.5-100 µm diameter are considered as oversimplified models of cells because of their biological membrane and micrometric size while large unilamellar vesicles (luvs) of 100-500 nm diameter have applications in drug delivery. to improve structural and mechanical properties of these vesicles, we have developed two cate...

Ali. A. Hosseini,, F. Ghaharpour, H. Rajaei ,

Abstract: In this paper‚ the physical and mechanical properties of Al nanocomposite reinforced with CNTs wereinvestigated. High purity Al powder and Carbon Nanotubes (CNTs) with different percentage were mixed by ballmilling method and the composite was fabricated by cold pressing followed by sintering technique. The variation ofdensity and hardness of composite with CNTcontent was investigated...

ژورنال: مواد پرانرژی 2014

GAP propellants has good performance due to high energy of this polymer. Unfortunately, due to poor flexibility of GAP polymer and presence of rigid and conjugated azide side groups in its structure, they have poor mechanical properties especially under low temperatures. This article deals with methods of improving mechanical properties of solid composite propellants based on GAP through changi...

ژورنال: مواد پرانرژی 2019
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Hydroxyl terminated polybutadiene (HTPB) is a low molecular weight  polymer which has used in various industries. The good mechanical  and thermal properties of  HTPB based polyurethane is caused to use it as a binder for the solid composite  propellants and plastic bonded explosives. Also, The presence of double bonds and hydroxyl end groups in the structure of HTPB can provide an opportunity ...

1979
R G Mints

The critical state stability in a composite superconductor under an external stress, causing plastic strain yield, is considered. The obtained criterion of the stability against thermomagnetic-mechanical perturbations allows the explanation of the training phenomenon as a process of consequent strain hardening of the superconductor. The training of superconducting materials is a well known phen...

2013
R Shobha K. R. Suresh H. B. Niranjan

High specific strength of the material is critical for many structural applications in automotive and aerospace design. Among many other approaches for strengthening the materials, development of superfine and nano grained microstructure is becoming popular. Different techniques for producing ultra-fine-grained (UFG) materials have been introduced especially in the last decade. The advantages o...

In this study, the composite material with composition of MgH2-10 wt% (25Ce-75Ni) has been prepared by co-milling of magnesium hydride powder with Ce-Ni alloy produced by vacuum arc remelting method. The effect of milling time and additive on magnesium hydride structure, i.e. crystallite size, lattice strain and particle size, and also hydrogen desorption properties of obtained composite were e...

Journal: :Journal of the mechanical behavior of biomedical materials 2011
Y Bala B Depalle T Douillard S Meille P Clément H Follet J Chevalier G Boivin

Bone is a multiscale composite material made of both a type I collagen matrix and a poorly crystalline apatite mineral phase. Due to remodeling activity, cortical bone is made of Bone Structural Units (BSUs) called osteons. Since osteon represents a fundamental level of structural hierarchy, it is important to investigate the relationship between mechanical behavior and tissue composition at th...

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