EPDM rubber conveyor belt

(1) Low density and high filling property

EPDM rubber is a kind of rubber with low density and its density is 0.87. In addition, it can be filled with oil and fillers which can reduce the cost of rubber products . Moreover, for the high Mooney value EPDM rubber, the physical and mechanical energy after high filling will not decrease significantly.

(2) Aging resistance

EPDM has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical properties, oil filling and room temperature fluidity. The working temperature can be increased by adding suitable antioxidant. EPDM crosslinked with peroxide can be used under harsh conditions. When the concentration of ozone was 50 PPHM and the tensile strength was 30%, the EPDM rubber could not crack for more than 150 hours.

(3) Corrosion resistance

Due to the lack of polarity and low unsaturation, ethylene propylene rubber has good resistance to various polar chemicals such as alcohols, acids, bases, oxidants, refrigerants, detergents, animal and vegetable oils, ketones and fats; but it is less stable in aliphatic and aromatic solvents (such as gasoline, benzene, etc.) and mineral oils. Under the long-term action of concentrated acid, the performance will also decline. In ISO / to 7620, nearly 400 kinds of corrosive gaseous and liquid chemicals on various rubber properties were collected, and 1-4 grades were specified to indicate the degree of action

Grade , Volume , Swelling rate /% , Hardness reduction , Effect on properties

1 < 10 < 10 slight or none

2 10-20 < 20 smaller

3 30-60 < 30 medium

4 > 60 > 30 severe

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