- In order to fulfill the request of conveying materials under conditions of acid and alkali, we use cotton canvas, nylon canvas and EP canvas as the carcass during processes of designing and production, which creates properties of good elasticity ,trough-ability and low elongation. Through mixing materials with acid and alkali resistance as the cover, the product shows a good performance of chemical corrosion resistance and fine physical property.
Technical Parameter
Applications
Available for chemical industry,fertilizer industry,paper industry and mining, etc.
Rubber Cover Property
Rubber Cover Property | |||||||
Item | Tensile strength (Mpa) | Elongation At break(%) | Abrasion (mm3) | Hardness shore (A°) | Ozone Deterioration | ||
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Cover | Physical property | Before aging | ≥14.0 | ≥400 | ≤250 | 55-70 | No Crack |
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| After aging | ≥12.0 | ≥340 | _ | 60-75 | _ |
| Acid and Alkali Resistance | Class | Soak Liquid | Density | (℃*h)Soak Condition | Changing Rate before and after aging | |
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| Swelling rate | Change rate of tensile strength |
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| A1 | Hydrochloric Acid | 18% | 50℃*96h | ＜+10％ | ＜-10％ |
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| A2 | Sulfuric Acid | 50% | 50℃*96h | ＜+10％ | ＜-10％ |
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| A3 | Sodium hydroxide | 48% | 50℃*96h | ＜+10％ | ＜-10％ |