Preparation of Antimony-Doped Tin Oxide Fly Ash Antistatic Composite and Its Properties in Filling EVA
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Composite Powder
2.3. Preparation of EVA Composite Material
2.4. Testing Methods
3. Results and Discussion
3.1. SEM and EDS Analysis of Composite Powder
3.2. XRD Analysis of Composite Powder
3.3. FTIR Analysis of Composite Powder
3.4. Preparation Mechanism of Composite Powder
3.5. Performance Analysis of EVA Filled with Composite Powder
3.6. Analysis of Cross-Section Morphology of EVA Filled with Composite Powder
4. Conclusions
- (1)
- ATO was successfully coated on the surface of calcined fly ash, and the volume electrical resistivity of calcined fly ash was decreased from 1.72 × 1012 Ω·cm to 6 × 103 Ω·cm, which belonged to the antistatic powder;
- (2)
- According to the analysis of XRD, SEM, EDS and FTIR, Si-OH in fly ash and Sn (Sb)-OH of ATO are condensed to form a Si-O-Sn (Sb) bond, which is calcined at high temperatures to generate Sb-SnO2 with a rutile structure and conductive function. Nano-antimony-doped tin oxide particles are uniformly distributed on the surface of fly ash;
- (3)
- The EVA-filling experiment showed that the tensile strength and elongation at the break of ATO fly ash/EVA were better than those of calcined fly ash/EVA. ATO fly-ash composite powder-filling EVA had little effect on the melting index. Compared with calcined fly ash, ATO fly ash has fewer spherical particles in the EVA section after filling, so it has better compatibility with EVA;
- (4)
- The surface electrical resistivity of calcined fly ash filled with EVA is high, and its antistatic performance cannot meet the requirements. The surface electrical resistivity of EVA filled with ATO fly-ash composite powder is significantly reduced, which makes EVA have good antistatic properties. ATO fly ash can improve the antistatic performance of EVA without deteriorating the performance of the matrix;
- (5)
- Compared with calcined fly ash, the limiting oxygen index of ATO fly ash composite powder filled with EVA increased more, which enhanced the flame retardant performance of EVA, indicating that there was a synergistic flame-retardant effect between fly ash and antimony-doped tin oxide.
- (6)
- ATO fly-ash composite powder has a good application prospect in the field of polymer-material modification. The filled EVA can be widely used in the construction industry, wire and cable and other fields, which greatly reduces the harm caused by static electricity. ATO is expensive when used alone as an antistatic material, so coating it on economic materials such as fly ash can meet the antistatic requirements while reducing costs. The laboratory preparation method of this material is complicated, and its production process needs to be optimized during industrial production.
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Chemical Elements | Si | Al | Fe | Ca | K | Ti | Mg | Na | Sx | Else |
---|---|---|---|---|---|---|---|---|---|---|
Mass Fraction/% | 50.00 | 23.67 | 9.34 | 6.25 | 4.00 | 2.38 | 1.19 | 0.723 | 0.685 | 0.017 |
Sample | EVA | Calcined Fly Ash/EVA | ATO@fly Ash/EVA |
---|---|---|---|
Tensile strength (MPa) | 6.10 | 6.38 | 6.50 |
Elongation at break (%) | 434 | 323.6 | 409.23 |
Melt index (g/10 min) | 2.90 | 5 | 2.50 |
Surface resistivity (Ω) | 6.0 × 1014 | 1.95 × 1014 | 4.0 × 108 |
Limit oxygen index (%) | 19.8 | 22 | 23.5 |
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Qiu, Y.; Wang, C.; Zhao, C.; Yao, G.; Wang, Z.; Yang, R. Preparation of Antimony-Doped Tin Oxide Fly Ash Antistatic Composite and Its Properties in Filling EVA. Materials 2024, 17, 1183. https://doi.org/10.3390/ma17051183
Qiu Y, Wang C, Zhao C, Yao G, Wang Z, Yang R. Preparation of Antimony-Doped Tin Oxide Fly Ash Antistatic Composite and Its Properties in Filling EVA. Materials. 2024; 17(5):1183. https://doi.org/10.3390/ma17051183
Chicago/Turabian StyleQiu, Ying, Caili Wang, Chunxue Zhao, Guoxin Yao, Zhixue Wang, and Runquan Yang. 2024. "Preparation of Antimony-Doped Tin Oxide Fly Ash Antistatic Composite and Its Properties in Filling EVA" Materials 17, no. 5: 1183. https://doi.org/10.3390/ma17051183