Product Introduction
The flame retardant performance of conveyor belts: Currently, the main formula used by conveyor belt manufacturers is flame retardants, and the selection of flame retardants mainly focuses on the following categories:
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1
Inhibitory Effect — Suppresses the occurrence of oxidation reactions, achieving the effect of preventing spontaneous combustion.
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2
Endothermic Reaction — Compound releases crystalline water or dehydrates when heated, suppressing temperature rise.
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3
Covering Effect — Stable covering layer or foam material is generated under high temperature, playing the role of heat insulation and air isolation.
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4
Dilution Effect — Generates a large amount of non-combustible gas when heated, diluting combustible gas to a non-combustible concentration range.
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5
Transfer Effect — Changes the mode of thermal decomposition of polymer materials and suppresses the generation of combustible gases.
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6
Synergistic Combination — Flame retardants have little or no significant effect when used alone; combined use greatly improves the flame retardant effect.
💡 Flame retardants have a certain cooling effect on high temperature resistance. Improving them individually has limited impact, but using them together can greatly improve the flame retardant effect.
The Function of Flame Retardants
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Isolate or Dilute Combustible Gases
Effectively separates and reduces combustible gas concentrations to prevent ignition and flame spread.
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Cooling & Suppression
Achieves high temperature resistance of the rubber conveyor belt to the ignition level, preventing combustion initiation.
📋 The design of rubber conveyor belt formula must be adjusted according to on-site working conditions. The conveyor belt has passed flame retardant testing and electrostatic testing, and has obtained a certificate of conformity, coal safety mark, and customer recognition.
Product Features
This product uses an integral core as the skeleton material, and is made by impregnating and coating PVC material with excellent anti-static, flame retardant and other properties, then plasticizing it.
🏆 The maximum service life of the belt body is determined by the following factors:
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①
A dense core woven from warp and weft filaments and covered cotton.
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②
Immersing with specially formulated PVC material achieves extremely high bonding strength between the core and the cover adhesive.
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③
Specially formulated cover adhesive — making the belt resistant to impact, tear, and wear.
⚙️ Mechanical Properties: Flame retardant conveyor belts have excellent mechanical properties and can provide users with the longest service life and economical installation and use.
Frequently Asked Questions (FAQ)
Q What makes a conveyor belt flame retardant?
Flame retardant conveyor belts are made using specially formulated PVC materials combined with multiple flame retardant mechanisms — including inhibitory, endothermic, covering, and dilution effects — to prevent ignition and slow the spread of fire.
Q What certifications do flame retardant conveyor belts hold?
These conveyor belts have passed both flame retardant testing and electrostatic testing, and hold a certificate of conformity along with a coal safety mark, meeting strict industry safety standards.
Q What is the core material used in flame retardant conveyor belts?
The belt uses an integral core as the skeleton material — a dense core woven from warp and weft filaments and covered cotton — impregnated with specially formulated PVC to achieve high bonding strength and durability.
Q How do flame retardants work to prevent fire on conveyor belts?
Flame retardants work through six key mechanisms: suppressing oxidation, absorbing heat, forming protective covers, diluting combustible gases, altering thermal decomposition, and synergistic combinations — all of which collectively reduce fire risk significantly.
Q Are flame retardant conveyor belts suitable for coal mining applications?
Yes. These belts are specifically designed and tested for high-risk environments such as coal mines. They carry the coal safety mark and meet the flame retardant and anti-static requirements demanded by underground mining operations.
Q What mechanical advantages do flame retardant conveyor belts offer?
These belts offer excellent resistance to impact, tearing, and wear. The specially formulated cover adhesive and high-strength PVC core ensure a long service life with economical installation and maintenance costs.
Boao Rubber
