Effect of Filler Geometry on Coefficient of Thermal Expansion in Carbon Nanofiber Reinforced Epoxy Composites

2011 ◽  
Vol 11 (2) ◽  
pp. 1098-1102 ◽  
Author(s):  
M. Cho ◽  
J. Jang ◽  
J. Suhr
Keyword(s):  
Thermal Expansion ◽  
Carbon Nanofiber ◽  
Coefficient Of Thermal Expansion ◽  
Epoxy Composites

Rheological and Thermomechanical Properties of Meso and Non-Porous Silica Filled Epoxy Composites

2015 ◽  
Vol 815 ◽  
pp. 67-71
Author(s):  
Gang Li ◽  
Peng Li Zhu ◽  
Tao Zhao ◽  
Rong Sun ◽  
Daniel Lu
Keyword(s):  
Mechanical Properties ◽  
Thermal Expansion ◽  
Glass Transition ◽  
Mesoporous Silica ◽  
Coefficient Of Thermal Expansion ◽  
Porous Silica ◽  
Thermomechanical Properties ◽  
Epoxy Composites ◽  
Silica Microspheres ◽  
Silica Filler

In the present study, epoxy based composite filled with meso and non-porous silica microspheres with similar size were prepared respectively and their rheological and thermo-mechanical properties were studied systematically. The results showed that the mesoporous silica/epoxy composites showed much higher viscosity, storage modulus and glass transition temperature (Tg) while lower coefficient of thermal expansion (CTE) than did epoxy composites with nonporous silica particles, which could be attributed to the stronger interface interaction between the mesoporous silica filler with larger specific surface area (BET) and the epoxy matrix.

Thermal, Electrical and Physical Properties of Recycled Copper Filled Epoxy Composites

2012 ◽  
Vol 620 ◽  
pp. 208-212
Author(s):  
Mohamd Nur Fuadi Pargi ◽  
Pei Leng Teh ◽  
Salmah Husseinsyah ◽  
Cheow Keat Yeoh
Keyword(s):  
Electrical Conductivity ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Volume Fraction ◽  
Epoxy Composite ◽  
Coefficient Of Thermal Expansion ◽  
Filler Loading ◽  
Epoxy Composites ◽  
Milling Machine

The effect of recycled copper filled epoxy composites on thermal, electrical and physical properties were investigated. The recycled copper was collected as a waste from the milling machine. The recycled copper filled epoxy composite was mixed using mechanical stirrer. The effect of volume fraction of recycled copper of the epoxy composites were studied based on the coefficient of thermal expansion (CTE), electrical conductivity hardness and density. Incorporation of recycled copper has decreased the CTE of the composites. The electrical conductivity, hardness and density of the composites increased with increasing of volume fraction and filler loading.

Study of Mechanical Responses and Thermal Expansion of CNF-modified Polyester Nanocomposites Processed by Different Mixing Systems

2011 ◽  
Vol 1312 ◽  
Author(s):  
Muhammad E. Hossain ◽  
Mohammad K. Hossain ◽  
Mahesh Hosur ◽  
Shaik Jeelani
Keyword(s):  
Thermal Expansion ◽  
Mechanical Response ◽  
Carbon Nanofiber ◽  
Coefficient Of Thermal Expansion ◽  
Fracture Morphology ◽  
Mechanical Analysis ◽  
Mechanical And Thermal Properties ◽  
Compression Tests ◽  
Mechanical Mixing ◽  
Static Compression

ABSTRACTIn this study, different dispersion techniques such as sonication at high frequency, mechanical mixing, and magnetic stirring methods were employed to infuse 0.1 to 0.4 wt.% carbon nanofiber (CNF) into polyester matrix to study the influence of CNF on mechanical and thermal properties of the polyester nanocomposites. Dispersion of CNF studied using scanning electron microscopy (SEM) micrographs revealed excellent dispersion of CNF using sonication when 0.2 wt.% CNF was mixed in polyester resulting in enhanced mechanical response. On the other hand, agglomerations were observed in samples prepared with other mixing methods. Polyester with 0.2 wt.% CNF samples prepared by sonication resulted in 88% and 16% increase in flexural strength and modulus, respectively, over neat samples. Quasi-static compression tests showed similar increasing trend with addition of 0.2 wt.% CNF. Dynamic mechanical analysis (DMA) showed 35% and 5 °C improvement in the storage modulus and glass transition temperature (Tg), respectively, in the 0.2 wt.% loaded samples. Thermal mechanical analysis (TMA) performed on neat and samples with 0.2 wt.% CNF showed lower coefficient of thermal expansion (CTE) in nanophased sample compared to neat. Fracture morphology evaluated using SEM revealed relatively rougher surface in CNF-loaded polyester compared to neat as a result of better interaction between fiber and matrix due to the presence of CNF.

scholarly journals Determination of the coefficient of thermal expansion of epoxy composites

2002 ◽  
Vol 21 (2) ◽  
pp. 177-179 ◽  
Author(s):  
I. Glavchev ◽  
Kr. Petrova ◽  
M. Ivanova
Keyword(s):  
Thermal Expansion ◽  
Coefficient Of Thermal Expansion ◽  
Epoxy Composites

The GaNMn 3 -Epoxy composites with tunable coefficient of thermal expansion and good dielectric performance

2017 ◽  
Vol 146 ◽  
pp. 177-182 ◽  
Author(s):  
Jianchao Lin ◽  
Peng Tong ◽  
Kui Zhang ◽  
Xiaohang Ma ◽  
Haiyun Tong ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Coefficient Of Thermal Expansion ◽  
Epoxy Composites ◽  
Dielectric Performance

Hybridization of carbon–glass epoxy composites: An approach to achieve low coefficient of thermal expansion at cryogenic temperatures

Cryogenics ◽  
2011 ◽  
Vol 51 (2) ◽  
pp. 95-104 ◽  
Author(s):  
R.S. Praveen ◽  
Subhash Jacob ◽  
C.R.L. Murthy ◽  
P. Balachandran ◽  
Y.V.K.S. Rao
Keyword(s):  
Thermal Expansion ◽  
Coefficient Of Thermal Expansion ◽  
Epoxy Composites ◽  
Cryogenic Temperatures
Sign in / Sign up

Export Citation Format

Share Document