Abstract:Glass fiber reinforced polyester composite materials are widely used in various areas due to their high specific strength, low weight, excellent elasticity, high corrosion resistance, and high thermal stability. This study aims to investigate the effects of resin materials and various fillers and wear parameters such as different loads and speeds on the tribological properties of glass fiber reinforced polyester composite materials. In this experimental study, various resins (tensile additive orthophthalic pol… Show more
“…Çekme katkıları CTP malzemelerin üretimi esnasında ilave edilerek parçanın hacminin ve boyutlarının değişmesine engel olmaktadır [24]. Bu çalışmada CTP numunelerin üretiminde polistiren ve plastifiyen olmak üzere iki farklı çekme katkısı kullanılmıştır.…”
Composite materials are used successfully in many fields today with the developing technology. Fiber reinforced polymer composites are the most preferred composite materials due to their low cost properties and high strength. Glass fiber reinforced polyester (GFRP) composites are a type of composite with polymer matrix and glass fiber reinforcement material that meet the desired mechanical and tribological properties according to their usage areas. GFRP composite materials can contain different types of polyester and shrinkage additives. Environmental conditions affect the wear resistance of glass fiber reinforced polyester composites. In this study, different environmental conditions (UV irradiation, acid environment, salt water environment, accelerated aging, hydrothermal aging and thermal cycling) of glass fiber reinforced polyester composite materials containing two varied types of polyester (orthophthalic and isophthalic) and low profile additive (polystyrene and plasticizer) were investigated and the effects of environmental conditions on the wear behavior of the materials were investigated in samples containing different types of polyester and low profile additives. Considering the effects of environmental conditions on the wear resistance of the GFRP composite samples, it was observed that the wear resistance of the samples exposed to UV irradiation and hydrothermal aging increased in both samples. The use of polystyrene low profile additive in GFRP composite materials increases the wear resistance of the material. GFRP composite samples containing orthophlalic polyester resin have better wear resistance than samples containing isophlalic resin.
“…Çekme katkıları CTP malzemelerin üretimi esnasında ilave edilerek parçanın hacminin ve boyutlarının değişmesine engel olmaktadır [24]. Bu çalışmada CTP numunelerin üretiminde polistiren ve plastifiyen olmak üzere iki farklı çekme katkısı kullanılmıştır.…”
Composite materials are used successfully in many fields today with the developing technology. Fiber reinforced polymer composites are the most preferred composite materials due to their low cost properties and high strength. Glass fiber reinforced polyester (GFRP) composites are a type of composite with polymer matrix and glass fiber reinforcement material that meet the desired mechanical and tribological properties according to their usage areas. GFRP composite materials can contain different types of polyester and shrinkage additives. Environmental conditions affect the wear resistance of glass fiber reinforced polyester composites. In this study, different environmental conditions (UV irradiation, acid environment, salt water environment, accelerated aging, hydrothermal aging and thermal cycling) of glass fiber reinforced polyester composite materials containing two varied types of polyester (orthophthalic and isophthalic) and low profile additive (polystyrene and plasticizer) were investigated and the effects of environmental conditions on the wear behavior of the materials were investigated in samples containing different types of polyester and low profile additives. Considering the effects of environmental conditions on the wear resistance of the GFRP composite samples, it was observed that the wear resistance of the samples exposed to UV irradiation and hydrothermal aging increased in both samples. The use of polystyrene low profile additive in GFRP composite materials increases the wear resistance of the material. GFRP composite samples containing orthophlalic polyester resin have better wear resistance than samples containing isophlalic resin.
“…Glass, out of all the engineered fibers, is highly appropriate for various industrial applications and possesses exceptional qualities such as lightweight, strong, and durable. 6 Additionally, this hybridization also permit to specifically design the composite in achieving a well-balanced combination of properties by incorporating the advantages of different reinforcements while mitigating their drawbacks. Furthermore, the use of glass helps to reduce the drawback due to hydrophilic nature that associated with natural fibers.…”
The concern for the environmental hazards due to rapid utilization of non-biodegradable resources has persuaded the researchers to develop eco-friendly materials with noble categories of plant-based fibers and fillers. In view of this content, an effort has been initiated in the present work to explore the retrospective effect of PSP (Pistachio shell particles) on both mechanical as well as erosive wear performances of KG (kenaf/glass/kenaf/glass) hybrid polyester laminated composite. The KG laminate with different filler concentration, that is, 0 wt%, 1 wt%, 3 wt%, and 5 wt% were fabricated by using hand-lay-up technique and the mechanical properties of these laminates were determined by performing tensile, flexural and impact tests as per ASTM standard. A higher tensile value of 127.35 MPa with modulus of 7.658 GPa and hardness of 21.35 HV was obtained at 5 wt% reinforcement of PSP filler whereas 3 wt% filler reinforcement responded an optimum flexural strength of 112.42 MPa with modulus of 5.214 GPa and impact strength of 75.59 KJ/m2. To evaluate the wear performance of this laminates against high-speed solid particle, erosion wear test was carried out at different striking velocity and impingement angles. A noticeable reduction of 12.63% in wear rate was found due to increase with concentration PSP filler from 0% to 5 wt%. Further, the η (erosion efficiency) was also found to be limited within the range of 5.94% to 32.98%. From micrographic analysis of the fracture surface, micro-ploughing and micro-cutting actions were found to be most predominant primary wear mechanisms.
“…On the other hand, the durability of a component is also an essential requirement that one should take care during the process design and development. In this regard, polyester is a good option for increasing the product's potential lifespan as such it was unaffected by the effects of moisture, or humidity [4]. Few attempts have been made with polyesters are commonly as matrix materials, and to increase the mechanical and tribological properties with various reinforcement like glass, aramid and carbon fibres [5,6].…”
Fibre-reinforced polymer composites have begun to replace the conventional monolithic materials in the recent years as a result of better specific strength and enhanced characteristics. The present work has put forward an attempt to study the dry-sliding wear behaviour of CFRP composites followed by implementation of Taguchi-GRA combinatorial approach for the two output responses namely, wear and frictional force. Load (L), sliding distance (D), sliding velocity (S), and percent of fibre reinforcement (R) are considered as input conditions and the experiments were planned using design of experiments. In addition, Principal Component Analysis (PCA) has taken into consideration for the weights calculation in GRA. An elaborate study on the implementation these methodologies on the combined behaviour of wear and frictional force has been presented. Furthermore, ANOVA data is analysed, it appears that both the load (L) and the percent reinforcement (R) has greater effect towards the wear behaviour. A detailed discussion on wear mechanism has also been presented with a support of SEM morphology.
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