Toughening vinyl ester matrix composites by tailoring nanoscale and mesoscale interfaces

2021 ◽  
Author(s):  
Eric Jason Robinette
Keyword(s):  
Vinyl Ester ◽  
Matrix Composites

scholarly journals Optimization of the Tensile Properties of Polymeric Matrix Composites Reinforced with Magnetite Particles by Experimental Design

TecnoLógicas ◽  
2020 ◽  
Vol 23 (48) ◽  
pp. 83-98
Author(s):  
Luis Ángel Lara-González ◽  
Wilmar Guillermo-Rodríguez ◽  
Yaneth Pineda-Triana ◽  
Gabriel Peña-Rodríguez ◽  
Hugo Felipe Salazar
Keyword(s):  
Tensile Properties ◽  
Vinyl Ester ◽  
Mechanical Stimuli ◽  
Matrix Composites ◽  
Type Specimens ◽  
Best Response ◽  
Magnetite Fe3o4 ◽  
Magnetite Particles ◽  
Full Factorial ◽  
Polymeric Matrix Composites

A full-factorial 33 experiment was used in this study to determine the optimal values of the tensile properties of three composite materials manufactured based on three polymeric resins: Derakane Momentum epoxy vinyl ester based on bisphenol-A (DM-411), polyester based on terephthalic acid (P115-A), and isophthalic polyester (P2000). Such materials were reinforced with magnetite powders at concentrations of 10, 20, and 30 wt %, and the particle sizes were classified with three sieves: #200 (46–75 μm), #325 (26–45 μm), and #500 (0–25 μm). The compounds were manufactured using the hand lay-up method at room temperature in accordance with ASTM D638-14 for M1-type specimens. A tensile test was conducted on a universal Microtest EM2/300/FR machine at a test speed of 5 ± 25 % mm/min using an Epsilon extensometer calibrated in accordance with the ASTM E83 standard at 20 ± 2 °C. The magnetite powders and compound morphology were studied by Scanning Electron Microscopy. The mechanical properties of the compounds and the optimal response found by Analysis of Variance (ANOVA) and Response Surface Methodology (RSM) are also reported. The best response to the mechanical stimuli occurs with the composite material prepared with the epoxy vinyl ester resin DM-411, a concentration of 29.4 % of magnetite (Fe3O4), a particle size of 58.5 microns, and a 200 sieve.

Influence of chitosan-centered additives on flammable properties of vinyl ester matrix composites

Cellulose ◽  
2020 ◽  
Vol 27 (14) ◽  
pp. 8087-8103
Author(s):  
M. N. Prabhakar ◽  
Jung-il Song
Keyword(s):  
Vinyl Ester ◽  
Matrix Composites

scholarly journals Hybrid Thermoset Matrix Carbon Fibre Reinforced Composites, a Study of Interlaminar Properties

2017 ◽  
Vol 885 ◽  
pp. 309-313
Author(s):  
Tamás Turcsán ◽  
László Mészáros
Keyword(s):  
Carbon Fibre ◽  
Vinyl Ester ◽  
Unsaturated Polyester ◽  
Matrix Composites ◽  
Reinforced Composites ◽  
Shear Tests ◽  
Hybrid Matrix ◽  
Two Component ◽  
Interlaminar Shear ◽  
Fibre Reinforced Composites

In this study carbon fibre reinforced epoxy, unsaturated polyester, and vinyl ester based, binary (two-component) hybrid matrix polymer composites were produced and mechanically characterized by interlaminar shear tests. Fracture surface of tested composites were investigated by scanning electron microscopy. Toughness of hybrid matrix composites were identified and compared to that of the reference, non-hybrid matrix ones.

Designed Interphase Regions in Carbon Fiber Reinforced Vinyl Ester Matrix Composites

1999 ◽  
Vol 71 (4) ◽  
pp. 395-416 ◽  
Author(s):  
M. A. F. Robertson ◽  
M. B. Bump ◽  
K. E. Verghese ◽  
S. R. McCartney ◽  
J. J. Lesko ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Vinyl Ester ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Microwave Processing of Glass Fiber/Vinyl Ester-Vinyl Toluene Composites

1992 ◽  
Vol 269 ◽  
Author(s):  
Dhulipala Ramakrishna ◽  
Susannah Travis ◽  
Martin C. Hawley
Keyword(s):  
Glass Fiber ◽  
Vinyl Ester ◽  
Polymer Matrix Composites ◽  
Resonant Cavity ◽  
Qualitative Evaluation ◽  
Microwave Processing ◽  
Mode Switching ◽  
Matrix Composites ◽  
Microwave Curing ◽  
Void Fractions

ABSTRACTMicrowave processing has been investigated as an alternative to the conventional processing of polymers and polymer matrix composites. Different studies have demonstrated its viability and advantages, but various aspects related to its industrial applicability are still being investigated.Two aspects related to the microwave curing of glass fiber/vinyl ester-vinyl toluene composites have been studied. A qualitative evaluation was done to determine the reproducibility of heating patterns of these laminates in different modes of a microwave resonant cavity. The samples were prepared to similar physical and chemical specifications and heated in different single modes of the cavity.Another evaluation was done to compare the mechanical properties of microwave and thermally cured laminates subjected to flexural load. The samples were processed using similar cure cycles. The microwave samples were cured using a mode-switching technique and the thermal samples were cured in a temperature controlled oven. The void fractions of the samples were evaluated to develop pre-consolidation conditions that yield samples with low void fraction. Results of these two evaluations are discussed.

scholarly journals Bio-based thermoset alloys from epoxy acrylate, sesame oil- and castor oil-derived resins: Renewable alternatives to vinyl ester and unsaturated polyester resins

2019 ◽  
Vol 10 (1-3) ◽  
pp. 27-44
Author(s):  
Z Karami ◽  
MJ Zohuriaan-Mehr ◽  
K Kabiri ◽  
N Ghasemi Rad
Keyword(s):  
Castor Oil ◽  
Vinyl Ester ◽  
Polymer Matrix Composites ◽  
Unsaturated Polyester ◽  
Thermomechanical Analysis ◽  
Sesame Oil ◽  
Epoxy Acrylate ◽  
Matrix Composites ◽  
Scanning Calorimetry ◽  
Lap Shear

This study deals with the synthesis of vegetable oil (VO)-derived formulated resins with high bio-based content (30–77%) as potential renewable alternatives to conventional fossil-based vinyl ester (VE) and unsaturated polyester (UP) resins. First, epoxy acrylate was synthesized from a commercial epoxy resin via acrylation with acrylic acid. Then, acrylated epoxidized sesame oil (AESSO) and maleated castor oil (MCO) were synthesized and spectrally characterized. Afterward, networks of VE, AESSO, and MCO or their binary blends were prepared. The curing trend of the resins was investigated by differential scanning calorimetry. According to thermal and thermomechanical analysis, all of the VO-based networks possessed slightly inferior properties compared to those of VE. However, the adhesion strength of the VO-based alloying systems was higher than that of their petroleum-based counterpart based on T-peel and lap shear tests. Overall, it was concluded that the bio-resourced alloys could be considered as good alternatives to VE and UP resins, and the novel bio-resin formulations may be designed for adhesives, the polymer–matrix composites, and surface coating applications.

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