Basic Product Description
Akli-Acid Resistant Belt，it is a kind of inert material which is suitable for working environment in contact with acid and alkali, such as phosphate fertilizer manufacturing, seawater salt drying, covering rubber and plastic blending and filling with excellent acid and alkali resistance.
Technical indexes Executive standard：HG/T 3782-20 |
project | tensile strength/Mpa | Elongation at break% | Wear volume/mm³ | hardness/Ao | Ozone aging |
Cover gum | physical property | Before aging | ≥14.0 | ≥400 | ≥250 | 55-70 | No crack |
After aging | ≥12.0 | ≥340 | —— | 60-75 | —— |
Acid and alkali resistance | category | Soaking solution | concentration | Soaking condition | Performance change rate before and after soaking |
Volume Expansion Rate | Tensile Strength Change Rate |
A1 | hydrochloric acid | 18% | 50℃×96h | +10%Following | -10%within |
A2 | sulphuric acid | 50% | 50℃×96h | +10%Following | -10%within |
A3 | sodium hydroxide | 48% | 50℃×96h | +10%Following | -10%within |
Test conditions：Ozone concentration（50±5)*10(volume fraction)、temperature（40±2）℃、elongation（20±2）%、time15h |
