Iran Polymer Technology, Research and Development: 10 (2)

Open Access Article

1 - Flexible solar cells electrode based on carbonic structures and their nanocomposite
فرامرز افشار طارمی bahareh rezaei shima amiri rigi

Solar cells due to clean energy supplying and direct conversion of solar light to electricity attracted great attention. Silicon solar cells are brittle and they have high production cost. However polymer solar cells are flexible and they are cheaper in production proce More

Solar cells due to clean energy supplying and direct conversion of solar light to electricity attracted great attention. Silicon solar cells are brittle and they have high production cost. However polymer solar cells are flexible and they are cheaper in production procedure. The most applicable material for polymer solar cells electrode is Indium Tin oxide (ITO). This material is brittle and consumes a lot of electrical energy for fabrication. Therefore, there is a large demand for the fabrication of polymer solar cell electrode. A lot of materials have been used as electrode in polymer solar cells e. g. graphene, carbon nano tube, conductive polymers and their nanocomposite with metallic and metal oxide structures. In this research we try to study the carbonic structures like graphene, and their composite with other materials used in polymer solar cell electrodes. Manuscript profile

Open Access Article

2 - Nanocomposite Hydrogels Based on Ceramic Nanoparticles with Applications in Tissue Engineering
حامد سلیمی کناری Parisa Nikpour Sayed Mahmood Rabiee

Hydrogels, which consist of three-dimensional polymer networks from crosslinked homopolymers or copolymers, are able to absorb a large amount of water or biological fluids. Due to the remarkable characteristic of hydrogels, such as versatility in fabrication, high tunab More

Hydrogels, which consist of three-dimensional polymer networks from crosslinked homopolymers or copolymers, are able to absorb a large amount of water or biological fluids. Due to the remarkable characteristic of hydrogels, such as versatility in fabrication, high tunability in the physical, chemical, and biological properties, especially their excellent biocompatibility and similarity to native extracellular matrix (ECM), are an important class of biomaterials that can be utilized in biomedical and pharmaceutical applications. Hence; they have been most extensively studied in academic and industrial research. An emerging approach to reinforce polymeric hydrogels in order to overcome basic drawbacks of traditional the limitations of chemically crosslinked hydrogels such as low mechanical strength, focuses on incorporation of nanoparticles within the hydrogel network. A various types of ceramic nanoparticles such as nanoclays, bioglasses and hydroxy apatite can be integrated within the hydrogel networks to provide hydrogel nanocomposites with unique chemical, physical, and biological properties. In this review, the fundamentals of hydrogels and ceramic nanoparticles were briefly discussed, then we focused on the most recent accomplishments and developments in the design, synthesis and application of nanocomposite hydrogels containing ceramic nanoparticles especially bioactive glass, with emphasis on bone tissue engineering. Manuscript profile

Open Access Article

3 - Investigation and characterization of polymer blends miscibility for prepare of composite solid propellants
Ehsan Fathollahi

The need to high-energy materials with low sensitivity for used in composite solid propellants it has been expanded the use of high-energy polymers and plasticizers with explosives as binders in polymer. Explosive materials with a common polymeric binder include are ine More

The need to high-energy materials with low sensitivity for used in composite solid propellants it has been expanded the use of high-energy polymers and plasticizers with explosives as binders in polymer. Explosive materials with a common polymeric binder include are inert binder systems and have limited functionality. Various methods have been used to improve the efficiency of systems containing inert polymers. The most important of these is the use of polymers and plasticizers, which add up to the amount of energy the composite. This method is effective in making explosives efficient and advanced solid propellants. One of the problems of polymer-polymer and polymer- plasticizer composites is the possibility of immiscibility, which in turn reduces the Performance of the blends and the properties of the produced fuels. Therefore, the investigation and Characterization of miscibility polymer blends is an important issue. This has led to that this Investigation evaluate to study and use of difference methods, including: Visometric, thermal, electron microscopy, X-ray analysis, ultrasonic, Nuclear magnetic resonance spectra (NMR), Infrared spectra (IR) and mechanical tests and etc. , for Characterization and investigation of the compatibility of polymer blends. Manuscript profile

Open Access Article

4 - A review on plastic made from pea protein isolate
armaghan keshavarz mirzamohamadi ali abbasian

Abstract: Proteins in the role of plastic have great importance for environmental reasons. Recently, pea protein plant proteins have been considered. pea protein due to the low cost of genetic modification in commercial species and its relatively low sensitivities are c More

Abstract: Proteins in the role of plastic have great importance for environmental reasons. Recently, pea protein plant proteins have been considered. pea protein due to the low cost of genetic modification in commercial species and its relatively low sensitivities are considered. In this study, pea protein was introduced to investigate the interactions of pea isolates from pea protein isolates. Studies showed that the type of plasticizers and pH had no effect on the transparency of the films. In the study of the transparency of the bioplastics obtained from pea protein, the increased time for molding was reduced, while the increased molding pressure increased the transparency of the biopolymer. In the study of mechanical properties of pea protein films, thermal isolation was more potent, more elastic and more elastic than the films.pea protein films also showed higher tensile strength and elongation modulus and lower stamina values compared to pea extract films. The increase in time and molding pressure increased the failure strain, while the modulus did not change significantly. In the heat analysis, pea protein glass transition temperature was observed at about 100 ° C, which was increased by increasing the ratio of pea / glycerol chicken as a result of the plasticizer effect to lower values. Manuscript profile

Open Access Article

5 - Evaluation of the Epoxy Resins Improvement Using Carbon Nanomaterials
سید مرتضی نقیب Seyed Morteza Naghib

Epoxy, one of the most important thermosetting polymers, is used in a wide range of applications as adhesives, coatings, and materials for composite structures due to its outstanding performance, low processing capacity and low cost. Due to the superior properties of ca More

Epoxy, one of the most important thermosetting polymers, is used in a wide range of applications as adhesives, coatings, and materials for composite structures due to its outstanding performance, low processing capacity and low cost. Due to the superior properties of carbon nanomaterials in thermal conductivity, flame retardation, mechanical stability, electrical conductivity and environmental compatibility, these nanomaterials have attracted global attention. In the present article, a review of past literature on improving the performance of epoxy resin by adding carbon nanomaterials is presented. The correlation of structural performance for epoxy modified with various carbon nanomaterials has been closely analyzed. Improvement of mechanical, electrical, thermal conductivity and flame deterioration for epoxy resin has been investigated. Challenges and opportunities in the composite of functionalized nano-materials epoxy are also discussed. The purpose of this research is to provide a comprehensive understanding of the multi-purpose epoxy resins including carbon nanomaterials to date and assess its future prospects. Also, the relationship and comparison of the structure and performance of various carbon nanomaterials has been evaluated. The improvement of mechanical, electrical, thermal conductivity and carbon dioxide epoxy flame retardant properties has been thoroughly investigated. Finally, the conclusions and prospects for the future and the hope of facilitating progress are presented at the end of the paper. Manuscript profile

Open Access Article