Epoxy containing nano-silica filler is abrasion resistant

2021 ◽  
Vol 2021 (7) ◽  
pp. 3
Keyword(s):  
2013 ◽  
Vol 677 ◽  
pp. 49-54 ◽  
Author(s):  
Huey Ling Chang ◽  
Chih Ming Chen

In this paper, we present the function of the processing conditions (the amount of filler or diluent in epoxy resin, whether post-curing or not) in thermal properties of the modified silica/epoxy nano-composite materials based on thermal gravimetric analysis (TGA).The results is showed that after post-processing for the nanocomposite materials have a better thermal properties, and adding 3.2wt.% epoxy diluent can be taken a convenience operation, but has a negative effect on thermal properties. Nano-composite materials of diluent 3.2 wt.% plus nano-silica powder 2 wt.% will reach pyrolysis temperature 278.66°C. This reinforcement reaches the highest level observed of the decomposition temperatures of 2wt.% silica filler with no diluent cases nano-composite materials, after post-processing the decomposition temperatures could be enhanced to pyrolysis temperature 308.69 °C.


2022 ◽  
Vol 2022 ◽  
pp. 1-10
Author(s):  
I. Jenish ◽  
A. Felix Sahayaraj ◽  
V. Suresh ◽  
J. Mani raj ◽  
M. Appadurai ◽  
...  

Natural fiber composite materials are competent materials that may replace conventional synthetic materials where the strength to weight ratio is essential. In this paper, the mechanical characteristics of composites made up of randomly oriented natural fibers (mudar fiber and snake grass fiber) with nano-silica filler are detailed for the first time. From the various literature surveys, the critical length of mudar and snake grass fiber is chosen as 40 mm and 30 mm, respectively. The test samples were prepared with a fiber content of 10%, 20%, 30%, and 40% with an equal amount of mudar and snake grass fiber. The percentage of nano-filler is maintained as constant as 3% with all the compositions. The composites showed that the highest mechanical properties were found at 30% fiber volume. The maximum tensile strength is 45 MPa, and the flexural strength is 51 MPa. The maximum impact strength is 4.5 J. Sample ID 3 provided the best results compared to other proportions. The fiber/matrix adhesion was investigated using a scanning electron microscope (SEM). These predominant mechanical properties make it easier for the implementation of the prepared composite material in structural and automotive applications.


2020 ◽  
Vol 38 (12A) ◽  
pp. 1832-1841
Author(s):  
Hussein H. Zghair ◽  
Hasan H. Joni ◽  
Maan S. Hassan

This research study examines the practicability of using micro and nano size silica to improve the asphalt characteristics. Asphalt cement penetration grade of (60 /70) was prepared using (0%, 2%, 4% and 6%) of silica filler by weight of asphalt and investigated in terms of the softening point, penetration, and penetration index, viscosity, and ductility values. To modify the asphalt binder, the silica powder was mixed by a mechanical blender set at (2000) rpm at a mixing temperature of 140°C. However, the main challenge is an agglomeration of nano-silica powder which can reduce the ductility of nano silica modified binder. Therefore, this paper studies the efficiency of mixing period to obtain a homogeneous composite binder while alleviating the agglomeration issue. To do so, the effect of periods of mixing ranged between (30 to 60) minutes were examined on characteristics of modified asphalt binders. Overall, the addition of silica filler has an encouraging impact on the asphalt binder rheological properties. Also, the ductility value decreases with the addition of nano-silica content, attributed to the huge surface area and degree of agglomeration.  Furthermore, results exhibited that 6% of micro silica powder and 4 % of nano silica powder were reasonable to develop the rheological properties.


2019 ◽  
Vol 59 (8) ◽  
pp. 1695-1700 ◽  
Author(s):  
Muhammad Asif ◽  
Maziar Ramezani ◽  
Kamran Ahmed Khan ◽  
Muhammad Ali Khan ◽  
Kean Chin Aw

Sign in / Sign up

Export Citation Format

Share Document