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Coating for improving wear resistance of PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and preparation method of coating

A conveyor belt and wear-resistant technology, applied in the field of wear-resistant coating and its preparation, can solve the problems of poor wear resistance, loss of use value of the conveyor belt, large wear of the conveyor belt, etc., and achieve flame retardancy and antistatic properties Excellent, flexible and convenient treatment method, and the effect of improving the service life

Active Publication Date: 2021-07-30
LIAOYANG YIBANG NEW BUILDING MATERIALS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] PVC type whole core flame retardant conveyor belt is one of the two types of whole core flame retardant conveyor belt stipulated in MT914-2019 "Coal Mine Fabric Whole Core Flame Retardant Conveyor Belt". It is made by coating a layer of polyvinyl chloride resin. Its advantages are simple process, low cost, high production efficiency and good flame retardant performance. The inclination angle of the conveyor belt is small, so the transportation efficiency is low; especially the wear resistance is poor. waste of energy
In addition, the user unit needs to frequently replace the conveyor belt during use, which increases the labor intensity of the operator, and when the conveyor belt is replaced, the production will be interrupted, which directly affects the production cost and efficiency of the user enterprise.

Method used

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  • Coating for improving wear resistance of PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and preparation method of coating
  • Coating for improving wear resistance of PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and preparation method of coating
  • Coating for improving wear resistance of PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and preparation method of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1.1) Preparation of active interface treatment agent

[0027] Add 28kg of methyl ethyl ketone, 10kg of isopropanol, 15kg of propylene glycol diacetate, 12kg of dimethyl nylon acid and 35kg of polyester diol L3025 into the dispersing tank, stir until uniform with a disperser, and finally use a 200-mesh wire After mesh filtration, the active interface treatment agent is obtained and set aside.

[0028] 1.2) Composition of component A and component B of modified polyurethane coating

[0029] Component A is a semi-prepolymer synthesized from the following raw materials: 55kg polyester diol L3025, 35kg aromatic isocyanate MDI50, 10kg propylene carbonate;

[0030] Component B is composed of the following raw materials: 15kg dimethylthiotoluenediamine DMTDA, 55kg polytetramethylene ether glycol PTMG2000, 18kg halogen-free environmental protection liquid flame retardant FR-633, 3kg antistatic agent Basionics LQ01, 5kg Molecular sieve SYLOSIV A3, 0.1kg organic bismuth catalyst...

Embodiment 2

[0050] 1.1) Composition of component A and component B of modified polyurethane coating

[0051] Component A is a semi-prepolymer synthesized from the following raw materials: 50kg polyester diol L3025, 42kg aromatic isocyanate MDI100, 8kg propylene carbonate;

[0052] Component B is composed of the following raw materials: 15kg dimethylthiotoluenediamine DMTDA, 5kg diethyltoluenediamine DETDA, 15kg polytetramethylene ether glycol PTMG1000, 35kg polytetramethylene ether glycol PTMG2000, 9kg halogen-free environmentally friendly liquid flame retardant FR-633, 9kg halogen-free environmentally friendly liquid flame retardant FR-632, 3kg antistatic agent Basionics LQ01, 5kg molecular sieve SYLOSIV A3, 0.1kg organic bismuth catalyst BiCAT8118, 3.8kg polyurethane universal red paste ( Its water content ≤0.5%), 0.1kg defoamer BYK023.

[0053] 1.2) Preparation of component A and component B of modified polyurethane coating

[0054] The preparation process of component A is as follow...

Embodiment 3

[0071] 1.1) Composition of component A and component B of modified polyurethane coating

[0072] Component A is a semi-prepolymer synthesized from the following raw materials: 52kg polyester diol L3025, 48kg aromatic isocyanate MDI50;

[0073] Component B is composed of the following raw materials: 15kg dimethylthiotoluenediamine DMTDA, 10kg diethyltoluenediamine DETDA, 10kg polytetramethylene ether glycol PTMG1000, 35kg polytetramethylene ether glycol PTMG2000, 18kg halogen-free environment-friendly liquid flame retardant FR-632, 3kg antistatic agent Basionics LQ01, 5kg molecular sieve SYLOSIV A3, 0.1kg organic bismuth catalyst BiCAT8118, 3.8kg polyurethane universal black paste (water content ≤ 0.5%), 0.1kg Defoamer BYK023.

[0074] 1.2) Preparation of component A and component B of modified polyurethane coating

[0075] The preparation process of component A is as follows:

[0076] Put 52kg of polyester diol L3025 in the reactor, start stirring, heat to 100-120°C, dehydr...

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Abstract

The invention provides a coating for improving wear resistance of a PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and a preparation method of the coating. The coating comprises an active interface treating agent coating and a modified polyurethane coating which are arranged on the surface of the PVC whole-core flame-retardant conveyor belt. The active interface treating agent contains methyl ethyl ketone, isopropanol, propylene glycol diacetate, dimethyl nylon acid and polyester glycol L3025. The modified polyurethane coating comprises a component A and a component B, polyester diol L3025 is used for preparing a prepolymer component A, and a reactive flame retardant and an antistatic agent are adopted in the component B. After the PVC whole-core flame-retardant conveying belt is treated by an active interface agent, the modified polyurethane coating is coated by using high-pressure spraying equipment to form a wear-resistant coating. The wear-resistant coating provided by the invention has good tensile strength and elongation at break. The coated PVC whole-core flame-retardant conveyor belt composite coating has excellent bonding strength, flame retardance and antistatic property, particularly has excellent wear resistance and is long in service life.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a wear-resistant coating for a PVC integral-core flame-retardant conveyor belt and a preparation method thereof. Background technique [0002] The whole core flame-retardant conveyor belt has become the most important transportation tool in coal mines because of its good flame-retardant performance, safe use, light belt body, low energy consumption, convenient transmission, tear resistance, and no distance limit. [0003] PVC type whole core flame retardant conveyor belt is one of the two types of whole core flame retardant conveyor belt stipulated in MT914-2019 "Coal Mine Fabric Whole Core Flame Retardant Conveyor Belt". It is made by coating a layer of polyvinyl chloride resin. Its advantages are simple process, low cost, high production efficiency and good flame retardant performance. The inclination angle of the conveyor belt is small, so the transportation efficiency is lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/00C09D175/06C09D175/08C09D5/18C09D5/24C09D7/20C08J7/044C08J7/05B05D1/36B05D5/08B05D7/00B05D7/24C08L27/06
CPCC09D167/00C09D5/002C09D175/06C09D175/08C09D5/18C09D5/24C09D7/20C08J7/044C08J7/05C08J7/042B05D5/08B05D7/24B05D7/52B05D1/36C08J2327/06C08J2475/06C08J2475/08C08J2467/00
Inventor 赵兴顺崔桐嘉
Owner LIAOYANG YIBANG NEW BUILDING MATERIALS GRP CO LTD
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