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Process for preparing flame-retardant adhesive

A preparation process and technology of flame retardant glue, applied in the direction of adhesives, etc., can solve the problems of insufficient physical stability of suspending agent, influence of glue liquid performance, influence of coating yield and other problems, so as to solve the problem of flame retardant adhesive particle deposition, The effect of reducing the process and improving the coating yield

Active Publication Date: 2014-06-18
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the adhesive industry, the preparation method of flame retardant adhesives is to add a powder flame retardant to the adhesive. The particle size of this powder flame retardant is usually between 7-15 μm. Due to the powder With the addition of body-shaped flame retardants, after the adhesive is coated, there will be a large amount of granular residue on the rubber surface, which will affect the appearance yield and cause disadvantages to subsequent use. Therefore, customers are using this type of flame retardant adhesive At first, the adhesive should be pre-treated, including grinding, high-speed stirring, etc. Even so, if the current treatment is not correct, there will still be granular residues after coating, which will affect the coating yield; in order to reduce this In the pre-treatment process, some manufacturers of flame retardant adhesives add suspending agent to the adhesive, but because the physical stability of the added suspending agent is not enough, it has a certain impact on the performance of the glue, so this method is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment provides a preparation process of a flame-retardant adhesive, which is prepared through the following steps:

[0019] 1) Select the powder flame retardant added to the adhesive and the solvent corresponding to the powder flame retardant, the solvent is toluene, soak the powder flame retardant in the solvent for 12 hours , wherein the volume ratio of the powder flame retardant to the solvent is: flame retardant: solvent=1:3 parts;

[0020] 2) Put the product obtained in 1) into a horizontal sand mill, adjust the pressure of the horizontal sand mill to 4kg, and grind 5 times to obtain a product with a fineness of 2 to 5 μm. The product fineness adopts the fineness board for testing;

[0021] 3) Use a 150-mesh filter to filter the product obtained in step 2), add the filtered product to the adhesive, and stir at the same time, the stirring speed is 400 rpm, and the stirring time is 30 minutes;

[0022] 4) Inject the stirred adhesive containing the powder ...

Embodiment 2

[0025] This embodiment provides a preparation process of a flame-retardant adhesive, which is prepared through the following steps:

[0026] 1) Select the powder flame retardant added to the adhesive and the solvent corresponding to the powder flame retardant, the solvent is ethyl acetate, soak the powder flame retardant in the solvent 12h, wherein the volume ratio of the powder flame retardant to the solvent is: flame retardant: solvent=1:5 parts;

[0027] 2) Put the product obtained in 1) into a horizontal sand mill, adjust the pressure of the horizontal sand mill to 6kg, and grind 5 times to obtain a product with a fineness of 2 to 5 μm. The product fineness adopts the fineness board for testing;

[0028] 3) Use a 400-mesh filter to filter the product obtained in step 2), add the filtered product to the adhesive, and stir at the same time, the stirring speed is 500 rpm, and the stirring time is 40 minutes;

[0029] 4) Inject the stirred adhesive containing the powder flam...

Embodiment 3

[0032] This case provides a preparation process of a flame retardant adhesive, which is obtained through the following steps:

[0033] 1) Select the powder flame retardant added to the adhesive and the solvent corresponding to the powder flame retardant, the solvent is butanone, and soak the powder flame retardant in the solvent 12h, wherein the volume ratio of the powder flame retardant to the solvent is: flame retardant: solvent=1:4 parts;

[0034] 2) Put the product obtained in 1) into a horizontal sand mill, adjust the pressure of the horizontal sand mill to 5 kg, and grind 5 times to obtain a product with a fineness of 2 to 5 μm. The product fineness adopts the fineness board for testing;

[0035] 3) Use a 300-mesh filter to filter the product obtained in step 2), add the filtered product to the adhesive, and stir at the same time, the stirring speed is 500 rpm, and the stirring time is 50 minutes;

[0036] 4) Inject the stirred adhesive containing the powder flame reta...

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Abstract

The invention discloses a process for preparing a flame-retardant adhesive. The flame-retardant adhesive is prepared by the following steps: 1) selectively adding a powdery flame retardant and a solvent corresponding to the powdery flame retardant into an adhesive, immersing the powdery flame retardant in the solvent for 12h, wherein the volume ratio of the powdery flame retardant to the solvent is (1:3)-(1:5); 2) placing the resulting product obtained in step 1) in a horizontal sand mill, adjusting the pressure of horizontal sand mill to 4-6kg, grinding for five times to obtain a product having a fineness of 2-5mum; 3) filtering the resultant product obtained in step 2) by a filter screen having 150-400 meshes, and adding the filtered product to the adhesive while stirring; 4) injecting the stirred adhesive containing the powdery flame retardant into an online stirring device, installing pump exhausting pipes at the bottommost part of the online stirring device to pump glue output. The coating yield ratio of the flame-retardant adhesive is improved by the preparation method of flame-retardant adhesive provided by the invention.

Description

technical field [0001] The invention relates to a preparation method of an adhesive, in particular to a preparation process of a flame-retardant adhesive. Background technique [0002] At present, in the adhesive industry, the preparation method of flame retardant adhesives is to add a powder flame retardant to the adhesive. The particle size of this powder flame retardant is usually between 7-15 μm. Due to the powder With the addition of body-shaped flame retardants, after the adhesive is coated, there will be a large amount of granular residue on the rubber surface, which will affect the appearance yield and cause disadvantages to subsequent use. Therefore, customers are using this type of flame retardant adhesive At first, the adhesive should be pre-treated, including grinding, high-speed stirring, etc. Even so, if the current treatment is not correct, there will still be granular residues after coating, which will affect the coating yield; in order to reduce this In the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J9/00
Inventor 金闯陈静
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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