Mechanical and shape-memory properties of poly(mannitol sebacate)/cellulose nanocrystal nanocomposites

determination of some physical and mechanical properties red bean

چکیده: در این تحقیق، برخی خواص فیزیکی و مکانیکی لوبیا قرمز به-صورت تابعی از محتوی رطوبت بررسی شد. نتایج نشان داد که رطوبت بر خواص فیزیکی لوبیا قرمز شامل طول، عرض، ضخامت، قطر متوسط هندسی، قطر متوسط حسابی، سطح تصویر شده، حجم، چگالی توده، تخلخل، وزن هزار دانه و زاویه ی استقرار استاتیکی در سطح احتمال 1 درصد اثر معنی داری دارد. به طوری که با افزایش رطوبت از 54/7 به 12 درصد بر پایه خشک طول، عرض، ضخام...

Preparation and Mechanical Properties of Compositionally Graded Polyethylene/Clay Nanocomposites

This paper presents the preparation and mechanical properties of compatibilized compositionally graded Polyethylene/ low density polyethylene (LDPE)/ modified montmorillonite (MMT) nanocomposites prepared by solution and melt mixing techniques. Use of polyethylene glycol as compatibilizer improves compatibility of modified montmorillonite and low density polyethylene.  Comparisons between two t...

Effect of Alumina Nanoparticles on the Enhancement of Shape Memory, Mechanical and Impact Properties of TPU/ABS blend

In this paper, the shape memory, mechanical and Izod impact properties of a new shape memory nanocomposite based on thermoplastic polyurethane (TPU), acrylonitrile butadiene styrene (ABS) and alumina nanoparticles were investigated. The morphological results showed that the presence of 1% alumina nanoparticles made a reduction in diameter of ABS domains and caused a uniform distribution of the ...

Iron Based Shape Memory Alloys: Mechanical and Structural Properties

Studies of selected mechanical properties of nitinol – shape memory alloy

Because of their specific properties, shape memory alloys are applied in many domains. The investigations were conducted on nitinol alloy in the form of 3,1 mm diameter wire, whose Af temperature as stated by the manufacturer is Af =65C. The wire was stretched in a strain hardened state and after annealing at 500C. The influence of different heat treatments on the engineering stress – strain cu...