The conveyor belt is generally composed of a skeleton material, a cover layer and a laminate material (hereinafter referred to as a "cover layer" collectively as a "cover layer"), and a base material, wherein the skeleton material is the key to the conveyor belt and is a conveyor belt. The decisive factor of guiding, load capacity and elongation; therefore, the covering material is the guarantee for the normal operation of the conveyor belt, and has the functions of protecting the skeleton material, conveying the material, increasing the friction coefficient, absorbing the impact of the material, and resisting the wear, and the characteristics of the conveyor belt. For example, high temperature resistance, wear resistance, antistatic, etc. depend on the characteristics of the cover material; the function of the primer material is to have good bond strength between the skeleton material and the cover layer.
According to the material of the cover layer, the conveyor belt can be generally divided into a rubber conveyor belt and a light conveyor belt. The former layer mainly uses various types of natural or synthetic rubber, while the latter uses various types of polymer materials, mainly including PVC and PE. , TPU, TPEE materials, etc.
In general, the application of rubber conveyor belts has not changed much in the past few decades. It is still dominated by traditional heavy industry and mining, and is developing in the direction of high temperature resistance, flame retardancy and high strength according to the special requirements of these industries; The application of light conveyor belts is increasing, from the initial light industry, electronic production lines to textile printing and dyeing, stone wood processing, food processing, etc., in addition to the traditional five industries of steel, coal, electricity, cement, ports, etc. Almost all of the fields are currently available, and their performance and application areas are constantly evolving with the development of polymer materials technology. In the conveyor belt industry, light conveyor belts represent the development direction of lightweight, safe, environmentally friendly and energy-saving conveyor belts.
Globally, with the economic development, the overall market size of the conveyor belt industry has maintained steady growth.
Compared with traditional rubber conveyor belts, the new material lightweight conveyor belt has many advantages: first, it is safer and healthier. Compared with traditional conveyor belts, PU food grade conveyor belt products and PVC conveyor belts are widely used in food processing, agricultural production and other industries because they meet the strict standards of EU and FDA, while TPEE and PE conveyor belts meet combustion due to their surface materials. Non-toxic and harmless requirements are used as the main band in the tobacco industry; secondly, changing performance is relatively easy and can meet diverse performance needs. In addition to the good properties of the cover material itself, through physical and chemical modification, the new material light conveyor belt products can be characterized by acid and alkali resistance, oil resistance and organic solvents, meeting the diversified use requirements of many industries; again, in performance In the similar situation, the weight and thickness of the new material light conveyor belt is much smaller than that of the rubber conveyor belt, and the flexibility is better. The required wheel diameter of the equipment is also much smaller, and thus it is more energy-saving.
Therefore, globally, with the international development and application of new green materials, and the increasing awareness of environmental protection and energy conservation, the conveyor belt industry will develop in the future in the direction of lightness, energy saving, safety and environmental protection. Light conveyor belts The proportion in the conveyor belt industry is gradually increasing, and more and more fields are gradually replacing the ordinary rubber conveyor belts, and the market demand is expanding.