Research Article
Preparation and Sealing Performance of a New Coal Dust Polymer Composite Sealing Material
Table 2
Scheme of the orthogonal test.
| Test group | Coal-dust content (%) (A) | Water-material ratio (B) | Cross-linking agent content (%) (C) |
| 1 | (A1) 50 | (B1) 1.0 : 1 | (C1) 1.5 | 2 | 50 | (B2) 1.2 : 1 | (C2) 2.0 | 3 | 50 | (B3) 1.5 : 1 | (C3) 2.5 | 4 | 50 | (B4) 1.9 : 1 | (C4) 3.0 | 5 | (A2) 75 | 1.0 : 1 | 2.0 | 6 | 75 | 1.2 : 1 | 1.5 | 7 | 75 | 1.5 : 1 | 3.0 | 8 | 75 | 1.9 : 1 | 2.5 | 9 | (A3) 100 | 1.0 : 1 | 2.5 | 10 | 100 | 1.2 : 1 | 3.0 | 11 | 100 | 1.5 : 1 | 1.5 | 12 | 100 | 1.9 : 1 | 2.0 | 13 | (A4) 125 | 1.0 : 1 | 3.0 | 14 | 125 | 1.2 : 1 | 2.5 | 15 | 125 | 1.5 : 1 | 2.0 | 16 | 125 | 1.9 : 1 | 1.5 |
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