Studies on the Thermal Conductivity of Al2O3/Epoxy Resin Composite Materials

2012 ◽  
Vol 535-537 ◽  
pp. 235-238 ◽  
Author(s):  
Xiao Hu Wan ◽  
Li Ge Wang ◽  
Bin Zuo ◽  
En Ze Wang ◽  
Guang Zhi Zhu
Keyword(s):  
Thermal Conductivity ◽  
Particle Size ◽  
Composite Materials ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Pure Epoxy ◽  
Mean Particle Size ◽  
Epoxy Resin Composite

Al2O3/epoxy resin composite materials were prepared with alumina as filler in this paper, and the effects of particle size and added quantity of Al2O3 powers on the thermal conductivity of the composites have been investigated. The results show that, thermal conductivity of the composites increases with the increase of the added quantity of Al2O3 powders, and suitable particle size of alumina filler could help to form heat conductive chain which can improve the thermal conductivity of the composites effectively. The thermal conductivity could reach 0.48 W/(m•K), which is five times than that of pure epoxy resin, when the amount of alumina powders is 60% and its mean particle size is 100µm.

Dielectric properties and thermal conductivity of epoxy resin composite modified by Zn/ZnO/Al2O3 core–shell particles

2018 ◽  
Vol 76 (8) ◽  
pp. 3957-3970 ◽  
Author(s):  
Yang Wang ◽  
Lingjie Zhu ◽  
Jun Zhou ◽  
Beibei Jia ◽  
Yingye Jiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Dielectric Properties ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Core Shell ◽  
Epoxy Resin Composite ◽  
Shell Particles

Treeing Deterioration Characteristics in Cross-linked Polyethylene and Epoxy Resin Composite Materials

1997 ◽  
Vol 36 (Part 1, No. 7A) ◽  
pp. 4392-4396
Author(s):  
Changmin Yuan ◽  
Noboru Yoshimura ◽  
Jangseob Lim ◽  
Hiroyuki Miyata ◽  
Toshio Niwa
Keyword(s):  
Composite Materials ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Epoxy Resin Composite ◽  
Deterioration Characteristics

Effect of Backing Materials on the Performance of Cement-Based Piezoelectric Ultrasonic Sensors

2013 ◽  
Vol 351-352 ◽  
pp. 1273-1277
Author(s):  
Xin Chun Xie ◽  
Mi Mi Li ◽  
Dong Yu Xu ◽  
Peng Kun Hou ◽  
Shi Feng Huang
Keyword(s):  
Composite Materials ◽  
Epoxy Resin ◽  
Metal Powder ◽  
Resin Composite ◽  
Wave Number ◽  
Frequency Bandwidth ◽  
Epoxy Resin Composite ◽  
Longitudinal Resolution ◽  
Echo Pulse ◽  
Peak Value

In order to increase the sensitivity, frequency bandwidth and longitudinal resolution of the 1-3 cement-based piezoelectric ultrasonic sensor, different metal powder/epoxy resin composite materials were used to make backing layer, and the performances of sensors were evaluated and compared. The results indicated that the increase of the sensitivity and the frequency bandwidth, as well as a decrease of the pulse wave number can be observed when the backing materials of metal powder/epoxy resin composite materials were added to the sensor. A 42%-increase of the maximum peak-to-peak value of the echo pulse response, a 52%-reduction of the ring down time and a 200%-increase of the bandwidth can be achieved by using the backing material.

Preparation and Characterization of Epoxy Resin Composite Modified by Flexible Polyurethane Resin

2014 ◽  
Vol 904 ◽  
pp. 170-172 ◽  
Author(s):  
Rong Cheng ◽  
Cheng Zhang ◽  
Jing Wang
Keyword(s):  
Composite Materials ◽  
Epoxy Resin ◽  
Performance Test ◽  
Mechanical Performance ◽  
Resin Composite ◽  
Mass Ratio ◽  
Scanning Calorimetry ◽  
Epoxy Resin Composite ◽  
Amine Curing ◽  
Modified Epoxy

In this paper, under the effect of MD1041 cashew oil modified phenolic amine curing agent for epoxy resin, it successfully prepared polyurethane flexible resin modified epoxy resin composite materials by using polyurethane modified epoxy resin reinforced flexible resin. Modified composite material of the new preparation is characteristed by the method of the mechanical performance test, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC). The results show that the flexible resin has a strong effect on the toughness of modified epoxy resin composite materials. When the mass ratio of the flexible resin account for 5.9%,comprehensive mechanical properties of the modified composites is at the premium; when the mass ratio of flexible resin account for 3.1%, the thermal stability of the epoxy resin modified with flexible resin is at the best.

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