Phthalonitrile-carbon fiber composites produced by vacuum infusion process

2017 ◽  
Vol 51 (30) ◽  
pp. 4157-4164 ◽  
Author(s):  
BA Bulgakov ◽  
AV Sulimov ◽  
AV Babkin ◽  
IA Timoshkin ◽  
AV Solopchenko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Carbon Fiber ◽  
Carbon Fiber Composites ◽  
Vacuum Infusion ◽  
Reinforced Plastics ◽  
Composite Tooling ◽  
High Level ◽  
First Time ◽  
Vacuum Infusion Process

High-temperature carbon fiber-reinforced plastics based on phthalonitrile resins are obtained for the first time by vacuum infusion process. For this purpose, formulations based on low-melting bis(3-(3,4-dicyanophenoxy)phenyl) phenyl phosphate monomer in combination with 1,3-bis(3,4-dicyanophenoxy)benzene and 4-[3-(prop-2-yn-1-yloxy)phenoxy]benzene-1,2-dicarbonitrile were developed. Resin viscosities η ≤ 600 mPa·s were suitable for VIP and at the same time the thermal and mechanical properties of the cured matrices were in high level featured to phthalonitriles (HDT ≥ 420℃, E ≥ 5.1 GPa). CFRP samples were manufactured by vacuum infusion process with carbon fabric and demonstrated thermal stability over 400℃ and a change of mechanical properties by less than 10% at 300℃. Present results sufficiently extend the application field of phthalonitriles as matrices for complex-shape high temperature composite parts in aerospace or high-temperature composite tooling for PEEK-like thermoplastics processing.

Bending properties of carbon fiber nanocomposites with lamination structure of reinforcement

2016 ◽  
Vol 36 (5) ◽  
pp. 481-487 ◽  
Author(s):  
Jun Hee Song
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Advanced Materials ◽  
Carbon Fiber Composites ◽  
Reinforced Composites ◽  
Bending Tests ◽  
Reinforced Plastics ◽  
Composite Samples ◽  
Vartm Process

Abstract Advanced materials with excellent performance are in high demand in modern industry. Carbon fiber composites offer a number of advantageous mechanical properties. A significant improvement in fiber-reinforced composites can be achieved by dispersing a very small amount of nanofiller in the resin. Vacuum-assisted resin transfer molding (VARTM) is one of the most important processes for producing reinforced plastics. In this work, several composite samples were fabricated with the infusion of carbon nanofibers (CNFs) into the epoxy matrix using VARTM process. Using scanning electron microscopy (SEM), it was confirmed that CNFs were well dispersed in the resin. Bending tests were performed to investigate the mechanical properties of the samples, and SEM, to examine the fracture surfaces.

Process development for phenylethynyl-terminated PMDA-type asymmetric polyimide composites

2017 ◽  
Vol 30 (6) ◽  
pp. 731-741 ◽  
Author(s):  
Yixiang Zhang ◽  
Atul Jain ◽  
Lessa K Grunenfelder ◽  
Masahiko Miyauchi ◽  
Steven Nutt
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Carbon Fiber ◽  
Process Development ◽  
Amorphous Structure ◽  
Degree Of Polymerization ◽  
Carbon Fiber Composites ◽  
Resin System ◽  
Micro Computed Tomography ◽  
And Performance

A new type of polyimide, designated TriA X, has been developed for high-temperature composite applications. TriA X is a polymerized monomeric reactant (PMR)-type polyimide derived from 1,2,4,5-benzenetetracarboxylic dianhydride (PMDA), 2-phenyl-4,4′-diaminodiphenyl ether (p-ODA), and phenylethynyl phthalic anhydride (PEPA). The polymer has an asymmetric, nonplanar backbone, resulting in an amorphous structure and high toughness. In this work, a TriA X resin (with degree of polymerization n = 7 in the imide oligomer) was investigated for processability and performance in carbon fiber composites. Rheological measurements were performed on an oligomer with a low degree of imidization to understand the chemo-rheology of the resin system and determine a suitable B-staging temperature. A composite molding cycle was designed, which yielded fully consolidated woven carbon fiber laminates. Void contents in panels produced with this molding cycle were <0.1% as measured by image analysis (IA) of polished sections, and <0.2% as measured by X-ray micro-computed tomography (micro-CT). Matrix-dominated mechanical properties of composites fabricated with the TriA X polymer exceeded those of PMR-15 and AFR-PE-4 composites. These mechanical properties and a measured glass transition temperature of 367°C indicate potential for use of this resin system in high-temperature composites.

scholarly journals Mechanical Properties of Layered-Carbon Fiber Reinforced with Vacuum Infusion Process

2021 ◽  
Vol 6 (1) ◽  
pp. 33-40
Author(s):  
Ali Saifullah ◽  
Mohammad Jufri ◽  
Dini Kurniawati ◽  
Risky Chandra
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Tensile Test ◽  
Tensile Tests ◽  
Fiber Composites ◽  
Bending Test ◽  
Carbon Fiber Composites ◽  
Fiber Reinforced ◽  
Vacuum Infusion ◽  
Carbon Fiber Reinforced

Research on material engineering is widely developed in the precursors, composition of the material, and technique to create a composite. The layering and vacuum infusion resin are the developing technology to create the composites with the new characteristics and properties. This experiment is intended to find out the characteristics of layering carbon fiber reinforced by resin and is molded with vacuum infusion technique. The specimens of this experiment is layered-carbon fiber composites determined in three, four, five, six, and seven layers. The precursors of 220 and 240 carbon fibers are the main material of the composites. The tests conducted to the specimens are bending and tensile tests. The both tests are treated to reveal the mechanical properties of the composites. The least layers of 220 and 240 carbon fiber result the highest value of bending test, but the most number of carbon fiber layers show the opposite value. The results are reverse in the tensile test. The highest value of the tensile test is achieved by the most layers of carbon fiber, while the lowest value is in the least layers. This result is almost the same with the strain-stress, but overall the graphic is similarly increase to the most layers. Deduction achieved in this experiment is that the number of layers in the carbon fiber composites is significantly influencing the mechanical properties of the composite.

Strengthening of Reinforced Concrete Beams by Carbon Fiber Composites

2018 ◽  
Vol 931 ◽  
pp. 379-384
Author(s):  
Yuri V. Ivanov ◽  
Yuri F. Rogatnev ◽  
Igor I. Ushakov
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Bearing Capacity ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Carbon Fiber Composites ◽  
Limiting State ◽  
Reinforced Plastics ◽  
Reinforced Beams ◽  
The Given

The paper considers the results of the experimental study of the reinforced concrete beams strengthened by carbon fiber reinforced plastics (the CFRP). Eight reinforced concrete beams of the 80x160 mm section and 1500 mm designed span have been manufactured and tested. The influence of the number of the CFRP layers (strengthening power) on bearing capacity and rigidity under the static loading of beams in the thirds of the span has been studied. The results obtained indicate the increase in bearing capacity of the reinforced beams from 24% up to 55% and the increase in rigidity by 45% for the commonly adopted limiting state, i.e. achieving ultimate deformations in concrete of the compressed zone). The paper underlines the need for using anchor devices in the form of U-shaped binders to ensure the efficiency of the given method of strengthening.

Role of graphene oxide surface chemistry on the improvement of the interlaminar mechanical properties of resin infusion processed epoxy-carbon fiber composites

2017 ◽  
Vol 39 (S4) ◽  
pp. E2116-E2124 ◽  
Author(s):  
Gloria Ramos-Fernandez ◽  
María Muñoz ◽  
Juan C. García-Quesada ◽  
Iluminada Rodriguez-Pastor ◽  
Ignacio Martin-Gullon
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Carbon Fiber ◽  
Surface Chemistry ◽  
Fiber Composites ◽  
Oxide Surface ◽  
Carbon Fiber Composites ◽  
Resin Infusion
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