FORMATION OF FIBRE REINFORCED PLASTICS The formation of fibre reinforced plastics generally consists of two important steps. STEP 1. The formation and manufacturing of the fibrous materials…in this process the fibrous material which gives the desired property on boding with the matrix is formed. STEP 2.Process of bonding the manufactured fibrous material with the matrix or the polymer during
In this study, the CNT/ramie fiber hybrid multi-scale reinforcement system has been used to investigate the effect of this system on the mechanical and interfacial properties with an epoxy matrix. A simple chemical method is proposed to graft CNT on the surface of ramie fiber. The CNT has been grafted on ramie fiber by means of a silane coupling agent. The composite plates were fabricated using vacuum infusion method. The study aims to explore the CNT grafting mechanism on ramie fiber, and the effect of the hybrid reinforcement on the mechanical and interfacial properties was
Mechanical behavior is basically the properties that are use d to define a material i.e. hardness, stiffness, toughness strength, thermal stability, color resistance. Etc. Mechanical Behavior in Polymers: Polymers are the compounds that are used widely in a variety of applications from structure materials
Split Hopkinson pressure bar Aim and objectives of work Split Hopkinson pressure bar in most versatile apparatus for regulating the active behaviour of materials. To get a simple FEM of SHPB and numerical analysis was borne away in the present investigation and to simulate dynamic compression response based on quasi-static test to amount the mechanical response at high line rates and examine the dynamic compression properties, i.e. energy absorption and compressive force at advanced strain rates, to improve full scales stress-strain curves at altered strain rates and to examine the strain rate behaviour of differing materials. Modelling and test various geometries of specimens. Compare the experimental value with numerical test result values.
Polymerization of propylene through the catalyst. The common and usual catalyst used is Ziegler-Natta catalyst which it is a transition metal catalyst in the polypropylene and titanium industry (Malpass & Band, 2012). Figure 2: The reaction of propylene in assist of catalyst (Malpass and Band, 2012) Again, according to Malpass and Band (2012), the polypropylene is preparedly in such uncertain range composition because different in the microstructure, monomers and have a series of molecular weight. It is determined by the selective catalyst, the adequate conditions in polymerization and optional process. Further view by van der Ven (1990) of how polymerization of propylene through Ziegler-Natta catalyzed.
The construction of the stacked flat laminates is carried out by a mould of rigid and flexible sides. This permits the selection of the mould that processes the laminate very rapidly, accurately and with minimum waste of raw materials. The manufacturing method would produce laminates of greater strength and design flexibility in comparison to the traditional methods such as the hand lay-up. Due to the potential problems that can arise with infusion moulding, a trial and error approach should be used to perfect the setup (Fibre-Glast, 2013). These potential problems are leaks occurring or air getting into the resin inlets, which can create air bubbles or the air could create locks which could lead to resin pooling the part.
Bulk solution transport 2. Film diffusion transport 3. Pore transport 4. Adsorption Adsorption of the adsorbate occurs on the surface of the adsorbent at specific sites called adsorption sites. Adsorption can occur on the outer surface of adsorbent or with in macro-pores, meso-pores and micro-pores surface.
Furthermore, the methodology that attached are based on hydroxyapatite (HA) and sodium alginate (SA) composites that have been discussed in detail while for characterization, FTIR, FESEM,XRD, EDS, density and hardness test are being studied and discussed. The morphology, physical and mechanical properties of HA and HA/SA composite are studied based on their standard and
Reddy and et al.  studied exact analytical solutions and finite-element numerical solutions for free vibration and buckling of laminated composite plates based on three plate theories including the classical, start-order and third-order laminate theories under various boundary conditions on two edges are simply supported and other two edges are paralleled. They investigated the effects of material orthotropy, aspect ratio and side-to-thickness ratio on critical buckling loads and fundamental frequencies. Shiau and et
The main principle of this method is adsorption and desorption. It is a micro-extraction technique utilizing a syringe-like device which protects the sample-coated fiber inside.  The amount of adsorbed analyte by the fiber is proportional to the sample concentration in equilibrium and depends on the analytes’ distribution constant and the thickness of coat. Thin coat is apply for semi-volatile compounds while thick coat is apply for volatile compounds. The type of fiber used is depend on the properties of analytes.