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Container sealing glue and preparation method thereof

A sealant and container technology, applied in the field of sealant, can solve problems such as the comprehensive performance of the sealant not reaching the optimum state, the gap between the weld seam and the sealant, and the peeling off of the sealant, etc., and achieve a good working temperature range, weaken decomposition, and expansion The effect of performance improvement

Inactive Publication Date: 2017-05-10
WUHU SHUANGBAO BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, when the sealant is usually used to seal the weld, at different temperatures, due to the different expansion coefficients between the sealant and the weld, there is often a gap between the weld and the sealant, resulting in loosening. At the same time, in a humid environment, the sealant is easy to fall off, and the comprehensive performance of the sealant is not at its best, which needs continuous improvement

Method used

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  • Container sealing glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prepare as follows:

[0034] S1: weigh each raw material by weight ratio;

[0035] S2: mixing gasoline, ethyl acetate and acetone to form a mixed solvent;

[0036] S3: after mixing the nitrile rubber and EPDM rubber, masticate three times on a plasticizer to obtain a plasticized product;

[0037] S4: Sodium acetate, sodium formate, sodium acrylate, sodium polyacrylate, cross-linked-polyisobutylene-grafted maleate sodium salt are sequentially added to the masticated material obtained in S3 and mixed for 10 minutes, followed by sericite and vulcanized paste. , diatomite, UV stabilizer, antioxidant, rutile titanium dioxide, light calcium carbonate, talc, continue to mix, extrude and slice;

[0038] S5: Add the kneading sheet obtained in S4 to the mixed solvent obtained in S2, stir until it is completely dissolved, and send it to a three-roller for grinding until it is fine and uniform to obtain a sealant.

Embodiment 2

[0040] Prepare as follows:

[0041] S1: weigh each raw material by weight ratio;

[0042] S2: mixing gasoline, ethyl acetate and acetone to form a mixed solvent;

[0043] S3: after mixing the nitrile rubber and EPDM rubber, masticate three times on a plasticizer to obtain a plasticized product;

[0044] S4: Sodium acetate, sodium formate, sodium acrylate, sodium polyacrylate, cross-linked-polyisobutylene-grafted maleate sodium salt are sequentially added to the masticated material obtained in S3 and mixed for 9 minutes, followed by sericite and vulcanized paste. , diatomite, UV stabilizer, antioxidant, rutile titanium dioxide, light calcium carbonate, talc, continue to mix, extrude and slice;

[0045]S5: Add the kneading sheet obtained in S4 to the mixed solvent obtained in S2, stir until it is completely dissolved, and send it to a three-roller for grinding until it is fine and uniform to obtain a sealant.

Embodiment 3

[0047] Prepare as follows:

[0048] S1: weigh each raw material by weight ratio;

[0049] S2: mixing gasoline, ethyl acetate and acetone to form a mixed solvent;

[0050] S3: after mixing the nitrile rubber and EPDM rubber, masticate twice on a plasticizer to obtain a plasticized product;

[0051] S4: Sodium acetate, sodium formate, sodium acrylate, sodium polyacrylate, cross-linked-polyisobutylene-grafted maleate sodium salt are sequentially added to the masticated material obtained in S3 and mixed for 10 minutes, followed by sericite and vulcanized paste. , diatomite, UV stabilizer, antioxidant, rutile titanium dioxide, light calcium carbonate, talc, continue to mix, extrude and slice;

[0052] S5: Add the kneading sheet obtained in S4 to the mixed solvent obtained in S2, stir until it is completely dissolved, and send it to a three-roller for grinding until it is fine and uniform to obtain a sealant.

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Abstract

The invention discloses a container sealing glue, which comprises, by weight, 100-110 parts of nitrile butadiene rubber, 40-50 parts of ethylene propylene diene monomer, 10-15 parts of sodium formate, 15-20 parts of sodium acetate, 8-10 parts of sodium acrylate, 3-5 parts of sodium polyacrylate, 5-8 parts of cross-linked-polyisobutylene grafted sodium maleate, 140-168 parts of gasoline, 100-120 parts of ethyl acetate, 60-72 parts of acetone, 4-6 parts of rutile type titanium dioxide, 30-35 parts of light calcium carbonate, 60-70 parts of talc powder, 5-7 parts of sericite, 3-5 parts of vulcanized paste, 5-8 parts of diatomaceous earth, 0.4-0.6 part of an ultraviolet ray stabilizer, and 0.05-0.1 part of an antioxidant. According to the present invention, by optimizing the components, the sealing glue having the good comprehensive performance is obtained, the harmful substance consumption is reduced, the environmental pollution is reduced, and the preparation process is updated according to the optimized components.

Description

technical field [0001] The invention belongs to the technical field of sealants, and in particular relates to a container sealant and a preparation method thereof. Background technique [0002] A sealant is a flowable or extruded unshaped material to fill a closed joint that can rely on embedded drying, temperature changes, solvent evaporation, chemical cross-linking of the material to stabilize the material, and the gradual incorporation of a solid adhesive, viscoelastic behavior or elasticity Sealing material molding. In order to ensure the sealing function, the sealant should have the following basic characteristics: ① good embedding, storage stability, non-toxic or low toxicity; ② low penetration with other media; ③ seams that can resist telescopic movement, displacement and deformation; ④ In the joints subjected to cyclic deformation, it can ensure the complete recovery of its performance and shape; ⑤ have enough strength to withstand pressure; ⑥ not embrittlement and ...

Claims

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Application Information

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IPC IPC(8): C09J109/02C09J123/16C09J11/08C09J11/06C09J11/04
Inventor 胡昌悌
Owner WUHU SHUANGBAO BUILDING MATERIAL
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