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A kind of pre-reaction solution for chlorinated rubber adhesive and preparation method thereof

A technology of chlorinated rubber and adhesives, which is applied in the direction of halogen rubber derivative adhesives, adhesives, adhesive types, etc., and can solve problems such as solid-liquid delamination that is not easy to occur

Active Publication Date: 2022-06-21
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a pre-reaction solution for chlorinated rubber adhesive, the pre-reaction solution is not prone to solid-liquid delamination

Method used

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  • A kind of pre-reaction solution for chlorinated rubber adhesive and preparation method thereof
  • A kind of pre-reaction solution for chlorinated rubber adhesive and preparation method thereof
  • A kind of pre-reaction solution for chlorinated rubber adhesive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0030] A kind of pre-reaction solution for chlorinated rubber adhesive, its preparation steps are as follows:

[0031] (1) at room temperature, aluminum nitrate nonahydrate, magnesium nitrate hexahydrate and the distilled water for removing carbon dioxide are mixed and stirred, and the obtained mixed solution is adjusted to pH 7.0 with alkali lye under the stirring condition of 100r / min at rotating speed, and then under nitrogen protection and The reaction was carried out for 0.5 h under the stirring condition of the rotating speed of 500 r / min. The obtained mixture was placed in a closed reaction kettle for reaction at 70 ° C for 2 h. The obtained mixture was filtered and washed with distilled water with carbon dioxide removed until the filtrate became neutral. The filtered gelatinous The lye solution in step (1) adopts 5wt% NaOH solution, and the weight ratio of magnesium nitrate hexahydrate, aluminum nitrate nonahydrate and water for removing carbon dioxide in step (1) is 1:...

Embodiment 2

[0036] A kind of pre-reaction solution for chlorinated rubber adhesive, its preparation steps are as follows:

[0037] (1) at room temperature, aluminum nitrate nonahydrate, magnesium nitrate hexahydrate and the distilled water for removing carbon dioxide are mixed and stirred, and the obtained mixed solution is adjusted to pH 8.0 with alkali lye under the stirring condition of 300r / min at rotating speed, and then under nitrogen protection and The reaction was carried out for 1 h under the stirring condition of the rotating speed of 700 r / min, the obtained mixture was placed in a closed reaction kettle and reacted at 80 ° C for 7 h, the obtained mixture was filtered, and washed with distilled water from which carbon dioxide was removed until the filtrate was neutral, and the colloidal substance filtered out For subsequent use; the alkali solution described in step (1) adopts 10wt% NaOH solution, and the weight ratio of magnesium nitrate hexahydrate, aluminum nitrate nonahydrate...

Embodiment 3

[0042] A kind of pre-reaction solution for chlorinated rubber adhesive, its preparation steps are as follows:

[0043] (1) at room temperature, aluminum nitrate nonahydrate, magnesium nitrate hexahydrate and the distilled water for removing carbon dioxide are mixed and stirred, and gained mixed solution is adjusted pH to 9.5 with alkali lye under the stirring condition of rotating speed of 550r / min, then under nitrogen protection and The reaction was carried out for 2 hours under the stirring condition of the rotation speed of 1000 r / min, the obtained mixture was placed in a closed reaction kettle and reacted at 100 ° C for 24 hours, the obtained mixture was filtered, and washed with distilled water from which carbon dioxide was removed until the filtrate was neutral, and the filtered colloidal substance For subsequent use; the alkali solution described in step (1) adopts 15wt% NaOH solution, and the weight ratio of magnesium nitrate hexahydrate, aluminum nitrate nonahydrate an...

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Abstract

The invention provides a pre-reaction solution for chlorinated rubber adhesive and a preparation method thereof. The pre-reaction solution prepares magnesium aluminum hydrotalcite with magnesium nitrate and aluminum nitrate, and then prepares a laminated hydrotalcite-sodium phenolate compound. The hydrotalcite-sodium phenate complex is first coated on the surface of magnesium oxide particles, and then the large molecular weight p-tert-butylphenol formaldehyde resin can be adsorbed on the surface of magnesium oxide particles, so that the magnesium oxide particles in the pre-reaction solution are suspended in the solution and are not easy to coagulate with each other to form a precipitate, thereby preventing the solid-liquid stratification of the pre-reaction solution. The pre-reaction liquid prepared by the invention can be applied to prepare the adhesive of chlorinated rubber, and improve the adhesive force, heat resistance and storage stability of the adhesive. The pre-reaction liquid is easy to prepare and is suitable for popularization and application.

Description

Technical field: [0001] The invention provides a pre-reaction solution for chlorinated rubber adhesive, and also provides a preparation method of the pre-reaction solution, belonging to the technical field of adhesives. Background technique: [0002] Chlorinated rubber adhesive is one of the commonly used types of adhesives in material bonding. Pre-reaction liquid needs to be added in the preparation process of chlorinated rubber adhesive. A pre-reaction liquid with good performance can significantly improve the adhesion of the adhesive to materials (such as glass, metal, cloth, etc.) Adhesion of the surface, and improve the high temperature adhesion performance of the adhesive. The pre-reaction solution is generally obtained through the reaction of magnesium oxide solid powder and tert-butyl phenolic resin, but in production, storage and application, the phenomenon of phase separation of the pre-reaction solution is often encountered, that is, the pre-reaction solution occu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/04C09J11/06C09J11/08C09J115/02C09J161/08
CPCC09J11/04C09J11/06C09J11/08C09J115/02C08L2201/08C08L61/06C08K3/28C08K5/138
Inventor 李文卓王丹阳耿浩浩
Owner NANJING FORESTRY UNIV
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