Core paste material for whole-core flame-retardant conveying belt and preparation method thereof

Abstract

The invention discloses a core paste material for a whole-core flame-retardant conveying belt and a preparation method thereof. The method comprises the steps of weighing nano magnesium hydroxide, and adding water to obtain slurry at a mass ratio of 7:100; adding zinc stearate, and heating to 90 DEG C; stirring at a high speed for 30 minutes; filtering and washing; drying at 90 DEG C to obtain modified nano magnesium hydroxide for later use; adding the modified nano magnesium hydroxide into a stirrer; adding polyvinyl chloride paste resin, antimony trioxide and carbon black; adding liquid chlorinated paraffin, triaryl phosphate, tris-2-chloroethyl phosphate, a stabilizer and an anti-static agent; starting the stirrer, and stirring at the temperature lower than 30 DEG C for 6+ / -0.5 minutes to obtain paste; discharging the paste into a material storage tank and grinding; finally, performing a quick test on the ground paste sample, and storing the qualified paste in a material storage tank for later use.

Description

technical field [0001] The invention relates to the field of organic-inorganic composite coating materials, in particular to a core paste paste for a whole-core flame-retardant conveyor belt and a preparation method thereof. [0002] Background technique [0003] Belt conveyors are widely used for roadway transportation in coal mine mining working faces, that is, traditional trough transportation, while coal mine trough transportation often chooses PVC, PVG whole-core flame-retardant conveyor belts and a small amount of canvas laminated flame-retardant The belt, no matter the whole core flame retardant belt or the layered flame retardant belt, can meet the safety performance requirements of coal mines in terms of flame retardant performance, but the mechanical properties seriously affect the service life of the belt body. The specific defects are as follows: [0004] 1. Due to the high softening point and high modulus of polyvinyl chloride, the hardness of the conveyor belt...

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Problems solved by technology

[0005] 2. The wear resistance of polyvinyl chloride plastic is poor, which is only equivalent to 1 / 5 of rubber material; when using rubber material to stick the surface, due to the excessive difference in modulus between the two phases, the thickness of the rubber covering glue is limited within 2mm, exceeding this limit Then the cover glue will fall off during use

[0007] 4. This kind of belt body, especially the high-grade belt body, can only be connected mechanically, and the joint strength is only equivalent to 40% of the belt strength, which is easy to damage and requires a lot of maintenance