Improved bonding between PAN-based carbon fibers and fullerene-modified epoxy matrix

2008 ◽  
Vol 39 (11) ◽  
pp. 1762-1767 ◽  
Author(s):  
Zhenyu Jiang ◽  
Hui Zhang ◽  
Zhong Zhang ◽  
Hideki Murayama ◽  
Keiji Okamoto
Keyword(s):  
Carbon Fibers ◽  
Epoxy Matrix ◽  
Modified Epoxy

The Mechanical Properties of Organic Modified Epoxy Resin

2020 ◽  
Vol 43 (3) ◽  
pp. 10-14
Author(s):  
Georgel MIHU ◽  
Claudia Veronica UNGUREANU ◽  
Vasile BRIA ◽  
Marina BUNEA ◽  
Rodica CHIHAI PEȚU ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Epoxy Resin ◽  
Epoxy Matrix ◽  
Epoxy Resins ◽  
Mechanical Tests ◽  
Organic Modification ◽  
Three Point Bending ◽  
Modified Epoxy

Epoxy resins have been presenting a lot of scientific and technical interests and organic modified epoxy resins have recently receiving a great deal of attention. For obtaining the composite materials with good mechanical proprieties, a large variety of organic modification agents were used. For this study gluten and gelatin had been used as modifying agents thinking that their dispersion inside the polymer could increase the polymer biocompatibility. Equal amounts of the proteins were milled together and the obtained compound was used to form 1 to 5% weight ratios organic agents modified epoxy materials. To highlight the effect of these proteins in epoxy matrix mechanical tests as three-point bending and compression were performed.

Soft magnetic composites of carbon fibers decorated with magnetite in an epoxy matrix

2021 ◽  
pp. 1-9
Author(s):  
E.V. Kornilitsina ◽  
E.A. Lebedeva ◽  
S.A. Astaf’Eva ◽  
D.K. Trukhinov ◽  
P Badica
Keyword(s):  
Carbon Fibers ◽  
Epoxy Matrix ◽  
Soft Magnetic ◽  
Magnetic Composites ◽  
Soft Magnetic Composites

scholarly journals PPG-Terminated Tetra-Carbamates as the Toughening Additive for Bis-A Epoxy Resin

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1522
Author(s):  
Ming Zhang ◽  
Mingqing Chen ◽  
Zhongbin Ni
Keyword(s):  
Epoxy Resin ◽  
Epoxy Matrix ◽  
Microphase Separation ◽  
Intramolecular Interactions ◽  
Hexamethylene Diisocyanate ◽  
Separation Mechanism ◽  
Toughening Mechanism ◽  
The Impact ◽  
Modified Epoxy ◽  
Epoxy Systems

We synthesized PPG-terminated tetra-carbamates as a new toughening additive for epoxy thermosets through facile addition reaction of hexamethylene diisocyanate (HDI) with poly(tetra-methylene glycols) (PTMG) and poly(propylene glycols) (PPG). The effects of prepared tetra-carbamates on the rheological behavior of neat epoxy resin were studied along with the various cured properties of their modified epoxy systems. Four carbamate groups (–NHCOO–) endow the prepared additives not only with good intramolecular interactions, but also with optimal intermolecular interactions with epoxy polymers. This results in the suitable miscibility of the additives with the epoxy matrix for the formation of the typical biphasic structure of microparticles dispersed in the epoxy matrix via polymerization-induced microphase separation. The impact strength and critical stress concentration factor (KIC) of cured modified epoxy systems with the additives are significantly higher than those of unmodified epoxy systems, without sacrificing the processability (Tg) and flexural strength. The toughening mechanism is understood as a synergism combination among the phase separation mechanism, the in situ homogeneous toughening mechanism, and the particle cavitation mechanism.

scholarly journals Efficient Thermal Transport Highway Construction Within Epoxy Matrix via Hybrid Carbon Fibers and Alumina Particles

ACS Omega ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 1170-1177 ◽  
Author(s):  
Hao Wang ◽  
Linhong Li ◽  
Yapeng Chen ◽  
Meng Li ◽  
Hui Fu ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Thermal Transport ◽  
Epoxy Matrix ◽  
Highway Construction ◽  
Alumina Particles ◽  
Hybrid Carbon

scholarly journals A study regarding friction behaviour of lysine and isoleucine modified epoxy matrix

2017 ◽  
Vol 174 ◽  
pp. 012023 ◽  
Author(s):  
I Bălan ◽  
R Bosoancă ◽  
A Căpăţină ◽  
I Graur ◽  
V Bria ◽  
...  
Keyword(s):  
Epoxy Matrix ◽  
Friction Behaviour ◽  
Modified Epoxy

Fracture Toughness of CF-Plug Joints of Ti and Epoxy Matrix CFRP

2019 ◽  
Vol 821 ◽  
pp. 131-134
Author(s):  
Yoshitake Nishi ◽  
Helmut Takahiro Uchida ◽  
Satoru Kaneko ◽  
Michauel C. Faudree
Keyword(s):  
Fracture Toughness ◽  
Carbon Fibers ◽  
Epoxy Matrix ◽  
Epoxy Polymer ◽  
Fuel Efficiency ◽  
New Method ◽  
Coating Film ◽  
Light Weight ◽  
Safety Level ◽  
Fine Carbon

A new method of linear connected joints (Ti/CF-plug/Epoxy) of Ti (Titanium) to Epoxy connected by CF-plug was innovated and developed, since fine carbon fibers (CFs) generate the extremely large friction force by their broad interface between metals and Epoxy polymer (M/Epoxy). Compared with glue and spontaneous adhesions of M/Glue/Epoxy and M/Epoxy, the new method remarkably improved the fracture toughness with maintaining light weight. To maintain the high joint strength of the Ti/CFW-CFJ/Epoxy, the Ni coating film on CF should control to bite the CF by molten Ti. The tensile strength (σb) and its strain (εb) of Ti/NiCFW-CFJ/Epoxy were higher than those of Ti/CFW-CFJ/Epoxy. In addition, increasing the CF-volume increases the σb. The CF-plug joint between Ti and Epoxy matrix CFRP apparently probably enhances the fuel efficiency, as well as safety level of airplane.

Recycling of carbon fibers inserted in composite of DGEBA epoxy matrix by thermal degradation

2014 ◽  
Vol 109 ◽  
pp. 50-58 ◽  
Author(s):  
Gleice Guevara Matielli Rodrigues ◽  
Jane Maria Faulstich de Paiva ◽  
Janaína Braga do Carmo ◽  
Vagner R. Botaro
Keyword(s):  
Thermal Degradation ◽  
Carbon Fibers ◽  
Epoxy Matrix
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