Study on the Effect of Silica Submicron Particle Size and Content on Fracture Toughness of Filled Epoxy Resin

2021 ◽  
Author(s):  
Qin Zhou ◽  
Xuecheng Yu ◽  
Leicong Zhang ◽  
Pengli Zhu ◽  
Rong Sun
Keyword(s):  
Fracture Toughness ◽  
Particle Size ◽  
Epoxy Resin ◽  
Submicron Particle

Effect of Particle Size on Fracture Toughness of Spherical-Silica Particle Filled Epoxy Composites

2005 ◽  
Vol 297-300 ◽  
pp. 207-212 ◽  
Author(s):  
Soon Chul Kwon ◽  
Tadaharu Adachi ◽  
Wakako Araki ◽  
Akihiko Yamaji
Keyword(s):  
Fracture Toughness ◽  
Particle Size ◽  
Epoxy Resin ◽  
Small Particle ◽  
Volume Fraction ◽  
Silica Particles ◽  
Bending Test ◽  
High Fracture Toughness ◽  
Particle Content ◽  
Spherical Silica

We investigated the particle size effects on the fracture toughness of epoxy resin composites reinforced with spherical-silica particles. The silica particles had different mean particle diameters of between 1.56 and 0.24µm and were filled with bisphenol A-type epoxy resin under different mixture ratios of small and large particles and a constant volume fraction for all particles of 0.30. As the content with the added smaller particle increased, the viscosity of each composite before curing remarkably increased. We conducted the single edge notched bending test (SENB) to measure the mode I fracture toughness of each composite. The fracture surface with the small particle content exhibited more rough areas than the surface with larger particles. The fracture toughness increased below the small particle content of 0.8 and saturated above it. Therefore, near the small particle content of 0.8, the composite had a relatively low viscosity and a high fracture toughness.

Effect of particle size on fracture toughness of epoxy resin filled with angular-shaped silica

Polymer ◽  
1991 ◽  
Vol 32 (12) ◽  
pp. 2221-2229 ◽  
Author(s):  
Yoshinobu Nakamura ◽  
Miho Yamaguchi ◽  
Akiko Kitayama ◽  
Masayoshi Okubo ◽  
Tsunetaka Matsumoto
Keyword(s):  
Fracture Toughness ◽  
Particle Size ◽  
Epoxy Resin ◽  
Effect Of Particle Size

Effect of particle size on the fracture toughness of epoxy resin filled with spherical silica

Polymer ◽  
1992 ◽  
Vol 33 (16) ◽  
pp. 3415-3426 ◽  
Author(s):  
Yoshinobu Nakamura ◽  
Miho Yamaguchi ◽  
Masayoshi Okubo ◽  
Tsunetaka Matsumoto
Keyword(s):  
Fracture Toughness ◽  
Particle Size ◽  
Epoxy Resin ◽  
Spherical Silica ◽  
Effect Of Particle Size

scholarly journals Effect of rice husk (treated/untreated) and rice husk ash on fracture toughness of epoxy bio-composite

2020 ◽  
Vol 29 (1) ◽  
pp. 177-185
Author(s):  
Neeraj Bisht ◽  
Prakash Chandra Gope
Keyword(s):  
Fracture Toughness ◽  
Epoxy Resin ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Matrix Material ◽  
Secondary Reinforcement ◽  
Filler Loading ◽  
Particle Reinforcement ◽  
Pure Epoxy ◽  
Fibre Treatment

AbstractPresent work studies the effect of particle reinforcement on fracture toughness of bio-composites. The filler used has been taken as rice husk. Epoxy resin has been taken as matrix material. Composites with varying filler loading of 10, 20, 30 and 40 wt.% were fabricated. The fracture toughness was seen to be increasing with increase in filler loading. However beyond 20% there was a decrease in fracture toughness with increase in filler loading. The effect of fibre treatment on toughness was also observed. Rice husk fibres pre-treated with NaOH were used. It was observed that fracture toughness further improved due to treatment. The increase in fracture toughness was significant. Fracture toughness increased from 1.072 to 2.7465 MPa√mm for 20% reinforcement and after treatment it increased to 2.876 MPa√mm. It was observed that concentration of treatment media also affects the fracture toughness. Further the effect of hybridization was observed by addition of rice husk ash as a secondary reinforcement. The fracture toughness of the resulting composites was remarkably higher than that of pure epoxy.

One-step surface modification of graphene oxide and influence of its particle size on the properties of graphene oxide/epoxy resin nanocomposites

2018 ◽  
Vol 101 ◽  
pp. 211-217 ◽  
Author(s):  
Miroslav Huskić ◽  
Silvester Bolka ◽  
Alenka Vesel ◽  
Miran Mozetič ◽  
Alojz Anžlovar ◽  
...  
Keyword(s):  
Particle Size ◽  
Surface Modification ◽  
Graphene Oxide ◽  
Epoxy Resin ◽  
One Step ◽  
Epoxy Resin Nanocomposites

scholarly journals The submicron particles FORMULATION OF IONIC-GELATION SUBMICRON PARTICLES LOADING EXTRACT PAPAYA LEAVES (Carica papaya L.) WITH LACTIC ACID ISOLATES

2019 ◽  
Vol 4 (3) ◽  
pp. 77
Author(s):  
Mardiyanto Mardiyanto ◽  
Budi Untari ◽  
Najma Annuria Fithri ◽  
Sofia Sandi ◽  
Zahrul Mawaddah
Keyword(s):  
Particle Size ◽  
Lactic Acid ◽  
Encapsulation Efficiency ◽  
Carica Papaya ◽  
Ethanolic Extract ◽  
Submicron Particles ◽  
Ionic Gelation ◽  
Particle Characterization ◽  
Submicron Particle ◽  
Optimum Formula

A study regarding ionic-gelation submicron particle of papaya leaves (Carica papaya L.) extract with lactic acid of weeds potentially for antidiarrhea has been conducted. Preparation of papaya leaves ethanolic extract and lactic acid isolate into particles was done by ionic gelation method. This study aimed to determine: the major compound of extract, the total quercertine of extract, the percent value of encapsulation efficiency of the optimum formula which was varied by (CaOH)2 of the three formulas, and physical properties of particles. Formula 1 was using (CaOH)2 of 12.5 gram; formula 2 (CaOH)2 of 17,5 gram; formula 3 (CaOH)2 of 22.5 gram. The results showed formula 1 as the optimum formula that has the highest %EE. The average %EE values ​​of F1; F2; F3 respectively were 80,82%; 80,41%; 80,31%. The results of particle characterization using the PSA in the optimum formula produced particle size values ​​with an average of 253.6 nm, PDI of 0.218, and zeta potential +8 mV respectively.

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