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Pre-reaction liquid for chlorinated rubber adhesive and preparation method of pre-reaction liquid

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: 2021-12-14
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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  • Pre-reaction liquid for chlorinated rubber adhesive and preparation method of pre-reaction liquid
  • Pre-reaction liquid for chlorinated rubber adhesive and preparation method of pre-reaction liquid
  • Pre-reaction liquid for chlorinated rubber adhesive and preparation method of pre-reaction liquid

Examples

Experimental program
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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 distilled water from carbon dioxide removal are mixed and stirred, and the resulting mixed solution is adjusted to pH 7.0 with lye at a stirring condition of 100 r / min, and then mixed under nitrogen protection and React for 0.5h under the stirring condition of rotating speed of 500r / min, place the obtained mixture in a closed reaction kettle and react for 2h at 70°C, filter the obtained mixture, and wash with distilled water to remove carbon dioxide until the filtrate is neutral, and the filtered gel The material is for standby; the lye described in the step (1) adopts 5wt% NaOH solution, and the weight ratio of magnesium nitrate hexahydrate, aluminum nitrate nonahydrate and the water that removes carbon dioxide is 1:0.32:15 in the step (1);

[0032] (2) Mix the jelly obta...

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 distilled water from carbon dioxide removal are mixed and stirred, and the resulting mixed solution is adjusted to pH 8.0 with lye under the stirring condition of 300r / min at a rotating speed, and then mixed under nitrogen protection and React for 1 h under the stirring condition of 700 r / min, place the obtained mixture in a closed reaction kettle and react for 7 h at 80°C, filter the obtained mixture, and wash with distilled water to remove carbon dioxide until the filtrate is neutral, and the filtered jelly Standby; the lye described in the step (1) adopts 10wt% NaOH solution, and the weight ratio of magnesium nitrate hexahydrate, aluminum nitrate nonahydrate and the water for removing carbon dioxide in the step (1) is 1.02:0.34:18;

[0038] (2) Mix the jelly obtained in...

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 distilled water for removing carbon dioxide are mixed and stirred, and the resulting mixed solution is adjusted to pH 9.5 with lye under the stirring condition of 550r / min at a rotating speed, and then mixed under nitrogen protection and React for 2 hours under stirring conditions with a rotation speed of 1000r / min. The obtained mixture is placed in a closed reactor and reacted for 24 hours at 100°C. The obtained mixture is filtered and washed with distilled water to remove carbon dioxide until the filtrate is neutral. The filtered jelly Standby; the lye described in the step (1) adopts 15wt% NaOH solution, and the weight ratio of magnesium nitrate hexahydrate, aluminum nitrate nonahydrate and the water for removing carbon dioxide in the step (1) is 1.04:0.37:22;

[0044]...

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Abstract

The invention provides a pre-reaction liquid for a chlorinated rubber adhesive and a preparation method thereof.The pre-reaction liquid is prepared through the following steps: magnesium nitrate and aluminum nitrate are used for preparing magnesium-aluminum hydrotalcite, then a layered-embedded hydrotalcite-sodium phenolate compound is prepared, the hydrotalcite-sodium phenolate compound firstly coats the surfaces of magnesium oxide particles, then, high-molecular-weight p-tert-butylphenol formaldehyde resin can be adsorbed on the surfaces of the magnesium oxide particles, so that the magnesium oxide particles in the pre-reaction liquid suspend in the solution and are not easy to agglomerate to form precipitates, and the solid-liquid layering phenomenon of the pre-reaction liquid is prevented. The prepared pre-reaction liquid can be applied to preparation of an adhesive for chlorinated rubber, the adhesive force, heat resistance and storage stability of the adhesive are improved, and the pre-reaction liquid is easy to prepare and suitable for popularization and application.

Description

Technical field: [0001] The invention provides a pre-reaction solution for chlorinated rubber adhesives and 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 adhesives in material bonding. During the preparation of chlorinated rubber adhesives, a pre-reaction solution needs to be added. A pre-reaction solution with good performance can significantly improve the adhesion of the adhesive to materials (such as glass, metal, cloth, etc.) Adhesion to the surface, and improving the high-temperature bonding performance of the adhesive. The pre-reaction liquid is generally obtained by the reaction of magnesium oxide solid powder and tert-butylphenol-formaldehyde resin, yet in production, storage, and application, the phenomenon of phase separation in the pre-reaction liquid is often encountered, that is, the phenomenon of solid-liquid stratification ...

Claims

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Application Information

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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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