scholarly journals Optical and Mechanical Properties of Highly Transparent Glass-Flake Composites

2019 ◽  
Vol 3 (4) ◽  
pp. 101
Author(s):  
Benedikt Scharfe ◽  
Sebastian Lehmann ◽  
Thorsten Gerdes ◽  
Dieter Brüggemann
Keyword(s):  
Mechanical Properties ◽  
Glass Fibers ◽  
Polyvinyl Butyral ◽  
Refractive Indices ◽  
Transparent Glass ◽  
Optical And Mechanical Properties ◽  
Glass Flake ◽  
Blade Casting ◽  
High Degree ◽  
Properties Of Composites

In this paper, the dynamic mechanic and optical properties of composites made of Polyvinyl Butyral (PVB) and Micro Glass Flakes (MGF) with matching refractive indices (RIs) are investigated. The composite is produced by a slurry-based process using additional blade casting and lamination. It can be shown that a high degree of ordering of the MGF in the polymer matrix can be achieved with this method. This ordering, combined with the platelet-like structure of the MGF, leads to very efficient strengthening of the PVB with increasing content of the MGF. By carefully adjusting the RIs of the polymer, it is shown that haze is reduced to below 2%, which has not been achieved with irregular fillers or glass fibers.

scholarly journals Effect of Formation Route on the Mechanical Properties of the Polyethersulfone Composites Reinforced with Glass Fibers

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1364 ◽  
Author(s):  
Galal Sherif ◽  
Dilyus Chukov ◽  
Victor Tcherdyntsev ◽  
Valerii Torokhov
Keyword(s):  
Mechanical Properties ◽  
Thermal Treatment ◽  
Mechanical Characteristics ◽  
Glass Fibers ◽  
Interfacial Interaction ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Shear Tests ◽  
Matrix Interaction ◽  
Properties Of Composites

Interfacial interaction is one of the most important factors that affect the mechanical properties of the fiber reinforced composites. The effect of fabrics′ sizing removal from glass fibers’ surface by thermal treatment on the mechanical characteristics of polyethersulfone based composites at different fiber to polymer weight ratios was investigated. Three fiber to polymer weight ratios of 50/50, 60/40, and 70/30 were studied. Flexural and shear tests were carried out to illustrate the mechanical properties of the composites; the structure was studied using Fourier-transform infrared spectroscopy and scanning electron microscopy. It was shown that solution impregnation of glass fabrics with polyethersulfone before compression molding allows to achieve good mechanical properties of composites. The thermal treatment of glass fabrics before impregnation results in an increase in flexural and shear strength for all the composites due to the improvement of fiber–matrix interaction.

scholarly journals The Influence of Features of Aluminium Alloys 2024, 6061 and 7075 on the Properties of Glare-Type Composites / Wpływ Właściwości Stopów Aluminium 2024, 6061, 7075 Na Cechy Kompozytu Typu Glare

2015 ◽  
Vol 60 (4) ◽  
pp. 3101-3108 ◽  
Author(s):  
M.S. Wilk ◽  
R.E. Śliwa
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Glass Fibers ◽  
Mixing Rule ◽  
Test Results ◽  
Unidirectional Glass ◽  
7075 Alloy ◽  
Type Composite ◽  
Properties Of Composites

The above paper presents the assumptions and results of the research whose aim was to determine the influence of 2024, 6061 and 7075 aluminum alloys on the final properties of GLARE-type composites. GLARE 3 2/1 type composites, made of two layers of the epoxy prepreg, reinforced with unidirectional glass fibers, arranged in the direction of 0°/90°, and two sheets of aluminum with a thickness of 0.4 mm, were investigated. Composites of various stacking configurations of alloy layers, made of one type of aluminum alloy (so-called ‘homogeneous composites’), and two different alloys (mixed composites), were analyzed. The properties of the composites were evaluated with the use of the mixing rule and compared with the test results. The influence of the used aluminum alloys on mechanical properties of GLARE-type composites has been determined. GLARE-type composite made of 7075 alloy sheets had the most favorable mechanical properties in comparison to properties of composites with 2024 and 6061 sheets. It has been shown how the properties of GLARE-type composites depend on the type of the aluminum alloy. It has been also proved that the properties of GLARE-type composites can be evaluated with the use of the mixing rule.

scholarly journals Effect of Glass Fibers Thermal Treatment on the Mechanical and Thermal Behavior of Polysulfone Based Composites

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 902 ◽  
Author(s):  
Galal Sherif ◽  
Dilyus I. Chukov ◽  
Victor V. Tcherdyntsev ◽  
Valerii G. Torokhov ◽  
Dmitry D. Zherebtsov
Keyword(s):  
Mechanical Properties ◽  
Thermal Treatment ◽  
Interfacial Adhesion ◽  
Chemical Structure ◽  
Glass Fibers ◽  
Mechanical Analysis ◽  
Shear Tests ◽  
Sem Images ◽  
Polymer Ratio ◽  
Properties Of Composites

The effect of thermal treatment of glass fibers (GF) on the mechanical and thermo-mechanical properties of polysulfone (PSU) based composites reinforced with GF was investigated. Flexural and shear tests were used to study the composites’ mechanical properties. A dynamic mechanical analysis (DMA) and a heat deflection temperature (HDT) test were used to study the thermo-mechanical properties of composites. The chemical structure of the composites was studied using IR-spectroscopy, and scanning electron microscopy (SEM) was used to illustrate the microstructure of the fracture surface. Three fiber to polymer ratios of initial and preheated GF composites (50/50, 60/40, 70/30 (wt.%)) were studied. The results showed that the mechanical and thermo-mechanical properties improved with an increase in the fiber to polymer ratio. The interfacial adhesion in the preheated composites enhanced as a result of removing the sizing coating during the thermal treatment of GF, which improved the properties of the preheated composites compared with the composites reinforced with initial untreated fibers. The SEM images showed a good distribution of the polymer on the GF surface in the preheated GF composites.

scholarly journals Mechanical Properties of Composites Reinforced with Textile

2020 ◽  
Vol 57 (1) ◽  
pp. 21-27
Author(s):  
Oana Dodun ◽  
Laurentiu Slatineanu ◽  
Gheorghe Nagit ◽  
Marian Mares ◽  
Adelina Hrituc ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mathematical Model ◽  
Tensile Strength ◽  
Glass Fiber ◽  
Glass Fibers ◽  
Biodegradable Materials ◽  
The Matrix ◽  
Fiber Reinforcements ◽  
Polymer Type ◽  
Properties Of Composites

The needs of environmental protection led to the introduction of composites based on the use of plastics reinforced with biodegradable materials or other easily accessible materials. The overall purpose of the research was to experimentally investigate the possibilities of using some accessible reinforcement materials. Textile based on plants fibers and glass fibers were used as reinforcement materials, while the matrix was a polymer type material. An empirical mathematical model was proposed to highlight the effect of the number of glass fiber reinforcements on the tensile strength. The determined mathematical empirical model and graphical representations highlight how the number of glass fiber reinforcements affects the modulus of elasticity of the composite materials.

Sign in / Sign up

Export Citation Format

Share Document