High Property EPDM Heat Resistant Conveyor Belt

                                        EPDM RUBBER CONVEYOR BELT
General Introduction:
Heat resistant conveyor belt is made up of high temperature burning layer, transition layer, the organic insulation layer, a strong heat-resistant layer. The rubber surface uses EPDM(Ethylene Propylene Diene Monomer) or SBR(Polymerized Styrene-Butadiene Rubber) to make rubber cover respectively; The polyester canvas or canvas with high strength and high permeability can make the strong layer. These will be bonded together through high-temperature vulcanization.

(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

(4) Steam resistance property

Ethylene propylene rubber has excellent water vapor resistance and is estimated to be superior to its heat resistance property . In 230 ºC superheated steam, the appearance of EPDM did not change after nearly 100 h. However, under the same conditions, the appearance of fluororubber, silicone rubber, fluorosilicone rubber, butyl rubber, nitrile rubber and natural rubber had obvious deterioration after a short time under the same conditions.

(5) Resistance to superheated water

The resistance of ethylene propylene rubber to hot water is also good, but it is closely related to all curing systems. The mechanical properties of ethylene propylene rubber (EPDM) vulcanized with dimethomorphine disulfide and TMTD as vulcanization system changed little after soaking in superheated water at 125 ºC for 15 months, and the volume expansion rate was only 0.3%.

(6) Electrical properties

EPDM has excellent electrical insulation and corona resistance, and its electrical properties are better than or close to those of styrene butadiene rubber, chlorosulfonated polyethylene, polyethylene and cross-linked polyethylene.

(7) Elasticity

Due to the fact that there are no polar substituents in the molecular structure of ethylene propylene rubber (EPR), the molecular chain can maintain flexibility in a wide range, which is second only to natural rubber and cis-1,4-polybutadiene rubber, and can still maintain at low temperature.

(8) Adhesion

Due to the lack of active groups in the molecular structure of ethylene propylene rubber, the cohesive energy is low, and the compound is easy to spray frost, so the self viscosity and mutual viscosity are very poor

Used in cement plant. Steel and iron factory, metallurgy, coking industry. mainly for conveying coke iron and steel castings cement clinker and high-temperature materials Feature: Product selects cotton canvas or EP canvas as skeleton material. Cover rubber and cushion rubber is styrene-butadiene rubber or chlorobutadiene that has good heat resistant work and it is suitable for carrying materials under the temperature of 150ºC.                

    Minsk coal mine transportation site
    in Siberia, Russia                                               Australian iron ore project site                         Iron Ore Project in Thailand

Heat resistant conveyor belt cover type:

 Physical and mechanical properties of the heat resistant covering layer after tested should be in accordance with the following table:

(1)Q: Are you a factory or trading company?
A: We are a factory with an export license. We have the most convenient transportation conditions.

(2)Q: Do you offer samples?
A: We are glad to offer you free samples. New clients are expected to pay for the delivery cost, this charge will be deducted from the payment for the order.

(3)Q: How about the lead time?
A: Within10-20 days after getting the prepayment or L/C.

(4)Q: How can we pay?
A: For a small sample shipping costs, you can pay either by PayPal or by T/T. And by T/T or L/C at sight for a large amount of the order.

(5)Q: Can you do CO, Form E, Form F, Form A, etc? 
A: Yes, we can do them for you.

(6)Q: What is your factory's main product?