Normal-temperature-curable high-temperature-resistant conveyer belt adhesive and preparation and application method thereof

A room temperature curing and adhesive technology, applied in the direction of bonding method, adhesive type, chloroprene adhesive, etc., can solve the problem of joint strength only reaching 60-70%, short service time, and poor bonding strength Advanced problems, to achieve good benefits, short operating time, good flex resistance

Inactive Publication Date: 2011-08-17
郭国维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cold bonding joints are mostly suitable for neoprene rubber, saving time and effort, simple operation, no heat source is required for bonding, and fewer tools are used on site, but due to the performance defects of traditional adhesives, the use time is relatively short, and the joint strength can only reach 60-70%, and it is almost difficult to use in high temperature occasions
Hot-bonded joints (thermal vulcanization) need to peel off the cloth and rubber layers of the joint

Method used

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  • Normal-temperature-curable high-temperature-resistant conveyer belt adhesive and preparation and application method thereof
  • Normal-temperature-curable high-temperature-resistant conveyer belt adhesive and preparation and application method thereof
  • Normal-temperature-curable high-temperature-resistant conveyer belt adhesive and preparation and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] First, according to the mass fraction ratio of chloroprene rubber 70, chlorinated rubber 30, zinc oxide 7, magnesium oxide 5, phenolic resin 20, coupling agent 5, and mixed solvent (toluene, ethyl acetate) 400, these solvents, The solid material was put into the reaction tank in turn, and stirred at 40 ° C for 2 hours to obtain the adhesive component A;

[0024] Then, at the time of use, the prepared A component is mixed with the B component which is mainly 3,3'-dimethyl-triphenylmethane-4,4',6,6'-tetraisocyanate polymer in a ratio of 10: The ratio of 1 is mixed evenly, that is, the room temperature curing high temperature resistant conveyor belt adhesive is obtained;

[0025] Before use, the prepared conveyor belt joints must be ground, cleaned and dried, and then coated with adhesive, the joints are bonded, and then rolled with a roller or a hand hammer to be compacted, cured at room temperature, and the conveyor belt can be used. .

Example Embodiment

[0026] Example 2

[0027] First, according to the mass ratio of chloroprene rubber 70, chlorinated rubber 30, zinc oxide 7, magnesium oxide 5, epoxy ester 20, coupling agent 5, mixed solvent (toluene, ethyl acetate) 400 parts by mass, these solvents , the solid material was put into the reaction tank in turn, and stirred at 45 ° C for 1.5 hours to obtain the adhesive component A;

[0028] Then, at the time of use, the prepared A component is mixed with the B component which is mainly 4,4'-dicarboxy-diphenylmethane-4,4',8,8'-hexaisocyanate polymer in a ratio of 10:1 The proportion of the mixture is evenly mixed, that is, the room temperature curing and high temperature resistant conveyor belt adhesive is obtained;

[0029] Before use, the prepared conveyor belt joints must be ground, cleaned and dried, and then coated with adhesive, the joints are bonded, and then rolled with a roller or a hand hammer to be compacted, cured at room temperature, and the conveyor belt can be use...

Example Embodiment

[0030] Example 3

[0031] First, according to the mass fraction ratio of chloroprene rubber 70, chlorinated rubber 30, zinc oxide 7, magnesium oxide 5, ethylene-vinyl acetate copolymer resin 20, coupling agent 5, mixed solvent (toluene, ethyl acetate) 400, These solvents and solid materials were put into the reaction tank in turn, and stirred at 50 ° C for 1 hour to obtain the adhesive A component;

[0032] Then, at the time of use, the prepared A component is mixed with the B component which is mainly 3,3'-diethyl-triphenylmethane-5,5',8,8'-heptaisocyanate polymer in a ratio of 10: The ratio of 1 is mixed evenly, that is, the room temperature curing high temperature resistant conveyor belt adhesive is obtained;

[0033] Before use, the prepared conveyor belt joints must be polished, cleaned and dried, and then coated with adhesive, the joints are bonded, and then rolled with a roller or a hand hammer to be compacted, cured at room temperature, and the conveyor belt can be us...

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Abstract

The invention relates to a normal-temperature-curable high-temperature-resistant conveyer belt adhesive which comprises 80-95% of component A and 5-20% of component B, wherein the component A comprises 70 parts of chloroprene rubber, 30 parts of chlorinated rubber, 7 parts of zinc oxide, 5 parts of magnesium oxide, 20 parts of phenolic resin (epoxy ester or ethylene-vinyl acetate copolymer resin), 5 parts of coupling agent and 400 parts of mixed solvent (methyl benzene and ethyl acetate); and the component B mainly comprises polyisocyanate. The preparation method comprises the following steps: sequentially adding the solvent and solid materials of the component A into a reaction tank, and thoroughly and uniformly mixing to obtain the adhesive component A; and when in use, uniformly mixing the component A and the component B according to a ratio of 10:1. The conveyer belt adhesive has the characteristics of short normal-temperature curing time, high adhesive strength, good environmental resistance and excellent adhesivity and pliability, and is simple to use and operate, thereby having a wide application range.

Description

technical field [0001] The invention relates to a high-temperature-resistant conveyor belt adhesive capable of fast curing at normal temperature and a preparation and use method thereof, belonging to the field of viscose technology. Background technique [0002] An adhesive is a substance that uses surface suction to hold materials together. When an adhesive is applied to a substance, the adhesive should have sufficient fluidity and surface activity to wet the substrate, and must then be able to Hardened or set to produce high cohesive strength. The heat-resistant conveyor belt is generally made of multi-layer rubber polyester cotton cloth or polyester canvas covered with high-temperature resistant rubber, which is bonded by high-temperature vulcanization. It is mostly used to transport hot coke, cement, ore, slag, and heat Castings etc. Many existing adhesive compositions are adversely affected by high temperature ≥ 170°C, causing premature degradation of the adhesive and...

Claims

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Application Information

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IPC IPC(8): C09J111/00C09J115/02C09J161/06C09J5/00
Inventor 郭国维
Owner 郭国维
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