نتایج جستجو برای: physical and mechanical properties

تعداد نتایج: 17004998  

Journal: :علوم و تکنولوژی پلیمر 0
سید مجتبی میرعابدینی مهرداد شریفی مینا حقایق شاهین شعبانی پیمان بختیاری

in this study, the effect of hydrocarbon and rosin ester resins combination on the physical and mechanical properties of thermoplastic road markings were evaluated. at first, two basic thermoplastic road marking formulations based on hydrocarbon and rosin ester resins were prepared. several samples of the blends of two basic formulations for thermoplastic road marking were characterized and com...

The application of nanoparticles in order to enhance the composites properties has been recently attracted many researchers' attentions. To increase the mechanical and physical properties of the composites, the nanoparticles have no significant effect on the weight and nanostructure of composites. One of the well-known nanoparticles is the Nanoclay (NC) that have been widely used in industries ...

ژورنال: مسکن و محیط روستا 2020
Dormohamadi, Mansoure, Fotuhi Ardakani, Mohsen, Rahimnia, Reza,

Iran is one of the oldest countries in the world benefiting from adobe-based architecture; a method which has long been forgotten in the contemporary architecture of country. Considering the important role of Earth Blocks such as adobe in the world’s contemporary architecture and the wealth of Iranian adobe-based monuments, it is necessary to continue contemplating on ways to optimize adobe to ...

Zinc oxide nanoparticles have been synthesized by chemical reaction method.  Polyvinyl alcohol (PVA) composite film filled with nanometric, monodispersed zinc oxide nano particles prepared by PVA solution and nanozinc oxide. Polymer blend with ZnO nanoparticle composite film has prepared by casting technique.  The property of nano composites depends greatly on the chemistry of polymer matrices....

Zinc oxide nanoparticles have been synthesized by chemical reaction method.  Polyvinyl alcohol (PVA) composite film filled with nanometric, monodispersed zinc oxide nano particles prepared by PVA solution and nanozinc oxide. Polymer blend with ZnO nanoparticle composite film has prepared by casting technique.  The property of nano composites depends greatly on the chemistry of polymer matrices....

Journal: :journal of food quality and hazards control 0
m.r. koushki department of food technology research, national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran m.h. azizi [email protected] m. azizkhani department of food technology research, national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran p. koohy-kamaly department of food technology research, national nutrition and food technology research institute, faculty of nutrition sciences and food technology, shahid beheshti university of medical sciences, tehran, iran

background: environmental problems of the plastic materials used in food packaging and the demand for food quality improvements lead to the development of packaging in natural materials. edible films such as calcium alginate extend the shelf life by acting as a selective barrier against moisture and oxygen. the main objective of this study was to explore a calcium alginate based edible film to ...

Journal: :علوم و فنون بسته بندی 0
مهدیس شفاعی الیاس افرا علی قاسمیان محمدرضا دهقانی فیروزآبادی پونه ابراهیمی

improvement of the physical and mechanical properties of paper in the discussion of the application is very important. in order to fulfill this purpose, conventional processing techniques such as filtering and addition of long fibers and other chemicals such as additive resistors for dry and wet the pulp have been used. one of the methods to improve the physical and mechanical properties of pap...

Ghader Faraji, Hooman Abdolvand Javad Shahbazi Karami

Parallel Tubular Channel Angular Pressing (PTCAP) process is a novel recently developed severe plastic deformation (SPD) method for producing ultrafine grained (UFG) and nanograined (NG) tubular specimens with excellent mechanical and physical properties. This process has several advantageous compared to its TCAP counterparts. In this paper, a fine grained AZ91 tube was fabricated via multi pas...

Journal: :مهندسی بیوسیستم ایران 0
سیدمهدی غائبی کارشناسی ارشد، دانشگاه تهران سیدرضا حسن بیگی بیدگلی دانشیار، دانشگاه تهران محمدحسین کیانمهر دانشیار، دانشگاه تهران

iran is believed to occupy the second place, following turkey, among the apricot producing countries in the world. iran is faced with problems in export of apricot due to little or non-observance of drying principals and inattention to world market requirements. the physical and mechanical properties of agricultural products are the most needed and important parameters for design and developmen...

A. Monshi M. Bakhtiari R. Emadi,

Nowadays, SiC is one of the refractory materials which is used widespread because of its unique properties like structural stability in high temperatures. SiC nano whiskers are important in reinforcement of different kinds of composites like ceramic base materials, thanks to their outstanding mechanical, thermal, and chemical properties like low expansion coefficient, high thermal resistant, hi...

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