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The development of composite has spread in every industrial line. Composite is a solution to the demand for material with superior characteristics. One of the most needed characteristics is burning resistance. Extensive composite application encourages continuous innovation, including in terms of the use of natural fibers as a reinforcement. Research related to natural fibers is needed as an alternative to giving birth to environmentally friendly and economical composite. One of the natural fibers that can be utilized is bamboo fiber. Plants with very high growth rates are expected to be a sustainable alternative. The purpose of this study is to manufacture and test the burn resistance and mechanical property of the glass plate/bamboo fiber reinforced composite. There are 3 types of plates that will be manufactured, namely epoxy plates, glass fiber reinforced composite, and glass/bamboo fiber reinforced composite. glass fiber reinforced composite is manufactured with 4 glass fiber layers. Hybrid composites are manufactured with layers in the form of 2 glass fiber layers, bamboo layers, and 2 glass fiber layers in sequence. The GFRP and hybrid composites manufacturing method is by vacuum assisted resin transfer molding. The treatment of the 3 types of plates is burning with a duration of 15, 30, 45, and 60 seconds. The burnt results will be cut and tested according to ASTM D790. The results of the burn and bending tests show that the glass plate/bamboo fiber reinforced composite shows the highest burn resistance and the smallest decrease in bending power due to burnt treatment compared to the other 2 types of plates. [ABSTRACT FROM AUTHOR]

This research is based on the testing and comparison of tensile behaviors of novel hybrid composite reinforced with chromium alloy composite and epoxy polymer composite reinforced with chromium alloy. The materials involved in this study were Three groups of hybrid composites and one control group which are compared in this study for comparing their tensile properties in this particular composite, synthetic fibres such as carbon fibre, kevlar fibre, and glass fibre forms outer surface. The middle layer comprises chromium alloy metal of grade CrNi60WTi. The carbon fibre reinforced chromium alloy composite is denoted as CpCr. Glass fibre reinforced chromium alloy composite is denoted as GfCr and control group consists of epoxy- chromium alloy laminate which is denoted as EpCr. The sample size per group was taken as 20 and total sample size was 80, And they were machined according to the ASTM standards of composite machining using an abrasive jet machining process. The values of tables and respective analysis were collected and compared with each other and it was found that the tensile strength of Cpcr was found to be 113.8100 MPa, tensile strength of KfCr was found to be 74.0210 MPa, tensile strength of GfCr was found to be 51.9230 MPa and tensile strength of control group EpCr was 48.9515 MPa in which four composite groups' significance value of 0.001(P<0.05) was observed. Within the limits of this study, it was found that the tensile strength of CfCr was greater than that of EpCr. [ABSTRACT FROM AUTHOR]

Glass fiber polymeric composites (GFRP) are employed in airplanes and other structures due to several advantages over traditional materials. Conventional drilling of polymeric composites causes various types of damage, such as fiber pull-out, matrix cracking, fuzzing, delamination, spalling, and poor surface quality of the drilled surfaces, mainly owing to the anisotropic and inhomogeneous nature of composites. To mitigate these damages, Nanoclay with 1.25 wt% and 2.5 wt% were incorporated into the GFRP composite to explore their effect on the performance of drilling in terms of surface roughness (SR), entry and exit delamination factor (Fd). The influence of machining parameters, such as feed rate (FR) and spindle speed (SS), on these machining performances was also investigated. Comparing the 2.5 wt% woven GFRP to the neat and 1.25 wt% woven GFRP, the 2.5 wt% woven GFRP has shown less delamination and surface damage. The outcomes for all varieties of composites demonstrate that the SS and FR significantly influence SR and Fd. The main factors that optimize the intended machining performances are a decrease in the FR and a rise in the SS and nanoclay wt%. [ABSTRACT FROM AUTHOR]

Glass fibers are frequently utilized as reinforcing polymers. Glass fiber reinforced composites (GFRP) are unique due to their outstanding mechanical and physical characteristics that are useful in industrial applications. In order to mill these composites with good results, minimal fiber delamination and surface quality must be achieved. The current study aimed to improve the two critical milling parameters, feed rate and spindle speed, on performance attributes such as surface roughness (SR) and delamination factor (DF). The experimental design was planned using a Taguchi L9 orthogonal array. ANOVA was utilized to determine the impact of each parameter taken into consideration on performance characteristics. To achieve the lowest DF and SR values, the combination of the ideal parameters was determined to be higher spindle speed (SS) and lower feed rate (FR). Utilizing FESEM, the surface morphology was studied. [ABSTRACT FROM AUTHOR]

In this research, coffee beans powder was used as a natural material and their effect was studied as a reinforcement material on the composite material, where epoxy was used as a matrix and a layer of woven glass fibers. The results showed good mechanical properties after adding different weight fractions of (5%,10%,15%,20%,25%)wt of coffee beans powder (C.B). The best results for the mechanical properties were obtained when adding (20 %) C.B, where the ultimate tensile strength was in the value of (47.2) Mpa, the modulus of elasticity in the value of (0.83) GPa, the flexural strength in the value of (61.805) MPa, and the hardness in the value of (79.4) Shore-D, while the highest value of impact strength was at adding (25%)C.B which is (17)KJ/m2. [ABSTRACT FROM AUTHOR]

The objective of this study is to characterize the tensile properties and interfacial adhesion of chopped glass fiber semipreg reinforced polymer composites. Tensile testing was used to investigate the resistance to tension of composites. Differential Scanning Calorimetry (DSC) was also used to determine the thermal behavior of composites. Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) analysis were conducted to determine the microstructure and morphology of the composite polymers. The tensile testing results indicated that the tensile strength and Young's modulus were respectively improved by 23.45% and 53.77% for the CR-6/PA6 but decreased by 36.49% and 11.39% for CR-6/PA6GF30. DSC results revealed that crystallinity of PA6GF30 and PA6 surface of composites specimen was lower than those of PA6GF30 and PA6 specimens. SEM micrographs of CR-6/PA6 and CR-6/PA6GF30 fractured surfaces depicted good adhesion at the interface between CR-6 and injected PA6 or PA6GF30. XRD results showed that PA6 and PA6GF30 have different crystalline forms. The crystallizability of CR-6/PA6 and CR-6/PA6GF30 was promoted by the presence of CR-6. Introduction of glass fiber was shown to be helpful for formation of a more stable α-phase of PA6 and PA6GF30. [ABSTRACT FROM AUTHOR]

The negative impact of weld lines (WLs) on the mechanical behaviour of injection-moulded short-fibre reinforced polymers (SFRPs) could be quite significant. This study aims to investigate the WL strength of polyamide 6 (PA6) reinforced with 50 weight percent (wt%) glass fibre (GF), which is injected into a double-gated plate mould to develop a flowing WL. Tensile tests and rheological measurements showed that the WL in neat PA6 samples can be fully healed. Thus, in the absence of V-notches, the considerable drop in the mechanical properties is primarily due to the unfavourable fibre orientation at the WL region. The fibre orientation distribution at the WL was analysed using the Autodesk Moldflow® simulation as well as the micro-computed X-ray tomography (micro-CT) scans of the part. Moreover, because of the observed disparity between the simulated and experimental filling patterns, composites with varying fibre contents were compounded to investigate the effect of fibre content on the filling pattern by comparing the injection moulding short shots. As it has been reported in the literature that the WL strength could be partially recovered by optimising the injection moulding process parameters, the effects of the packing pressure and melt temperature on the WL strength were also studied. The results indicated that these injection moulding processing parameters have negligible effects on the WL strength. [ABSTRACT FROM AUTHOR]

Lightweight aircraft development involves exploration on the strength of inorganic fiber and a lightweight of polymer resin. Their combination could result in a lightweight-high strength composite. So far the most popular composite in aircraft are carbon fiber reinforcement or glass fiber reinforcement composites. These composite had used epoxy or polyester as matrix. In this study, a urethane acrylate resin (namely Crestapol 1260) and a twill carbon fiber (namely Justus 183-C40-134) was used to make composite. The crestapol is a thermoset resin with a more environmental friendly characteristic than the epoxy. Composite was manufactured through Vacuum Assisted Resin Infusion (VARI) technique. VARI had reported able to lower a porosity content in the composite and better than hand lay-up method. Existence of porosity made composite experiences the composition deviation, but number of the deviation is not clearly reported yet. It is known that a crestapol normally cured at room temperature, but a higher temperature might be better for the curing regarding to its thermoset resin. The composite will be evaluate on density, porosity content, tensile and compressive properties include its failure mode. [ABSTRACT FROM AUTHOR]

Chlorinated rubber (CR) has been widely used in coating industry due to its good chemical, mechanical, fungicidal and adhesive properties. In this study, the effect of adding CR on the mechanical properties of glass fibre reinforced polymer (GFRP) composite was investigated. The GFRP composite was prepared by the hand lay-up method. CRB10 and S20 types, were incorporated into GFRP via two methods, direct mixing and coating. First, 1 per hundred resins (phr) of CR was added into unsaturated polyester (UP) resin and used as a matrix GFRP composite (GFRP/CR). Second, 1 phr of CR was added into the UP resin and used as coating (GFRP/CRc). The results show that direct mixing samples have better tensile and flexural properties than the counterpart. Effect of CR, mixing and seawater immersion after 30 and 90 days were analyzed. It also showed that CR B10 resulted in better tensile (11%) and flexural strength (12%) than that of S20. Effect of seawater immersion for 90 days increased tensile strength ∼18%, but decreased flexural strength ∼21%. The addition of CR increased the water absorption for both GFRP/CR and GFRP/CRc. The results showed that coating method was effective to inhibit seawater absorption after 30 days, but less effective after 90 days than that of direct mixing. [ABSTRACT FROM AUTHOR]

This research investigates the wear behavior of glass fiber reinforced with nanoparticles of Al2O3 through an experimental analysis using artificial neural network (ANN). Three different percentages of Al2O3 reinforcement, namely 1%, 3%, and 5%, were used to research the wear properties of the prepared material. The wear experiment was planned using Taguchi design, with composition (C), load (L), speed (Vs), and distance of sliding (Ds) as input parameters, and specific rate of wear (Rw) and friction coefficient (Fc) as output responses. The Taguchi optimization technique was used to optimize the responses. The results show that the wear resistance and friction coefficient of the composite increased with increasing percentage of Al2O3 reinforcement. The Taguchi optimization technique was effective in optimizing the input parameters, and the ANN model developed to predict the responses showed higher accuracy. The ANN model was able to predict the wear properties of the composite with high precision, indicating that it could be used to optimize the wear behavior of similar composites. Overall, the study provides valuable insights into the wear behavior of glass fiber reinforced with nanoparticles of Al2O3 and highlights the effectiveness of Taguchi optimization and ANN modelling in predicting the wear properties of composite materials. The findings of this research could be useful in developing more durable and wear-resistant materials for various industrial applications, including aerospace, automotive, and biomedical industries. [ABSTRACT FROM AUTHOR]

Composite materials play important role in many industrial applications. Researchers are working on fabrication of new composite materials to enhance the applicability of these materials. Chopped strand mat glass fibre reinforced polymer composites is widely used in many industrial applications particularly in the automotive industry due to advantages such as low weight, ease of processing, price and noise suppression., The objective of the present work is to analyse mechanical and wear behaviour of chopped strand mat E-glass fiber, reinforced in epoxy matrix with carbon powder as filler. Three different types of composites are fabricated using 10% carbon, 20%carbon and 30% carbon with epoxy resin and hardener. The epoxy resin and hardener are mixed in 10:1 weight ratio. The present work shows that incorporation of carbon filler into E-glass fiber epoxy reinforced composites modifies the hardness compressive and wear properties of the composites when compared with unfilled E-glass epoxy composite. [ABSTRACT FROM AUTHOR]

Due to Environmental ill effects and rising synthetic fibre costs natural fibres have found a prominent use as reinforcement in polymer composite. To significantly improve the required mechanical properties, hybridization of adequate proportions of natural fibre and synthetic fibre has proved useful. Hybridized composite retains the parent properties of its constituent particles. The newness in the constituent particles of the composite is the need of the world. This article focuses on development technique of kenaf and glass fibre epoxy composite. Hand layup technique is used for making samples in the mould. The impact on mechanical properties like bending and impact is also discussed. Varying volume fraction and treatment with alkaline solution of constituent particles has shown changes in impact and bending properties. Sample with 30% fibre with treatment of alkaline shows highest bending strength and impact strength of untreated sample with 15% kenaf fibre shows maximum impact strength. [ABSTRACT FROM AUTHOR]