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Multi-response polymer adhesive material and application thereof

A polymer and matrix material technology, applied in the direction of amide/imide polymer adhesives, ester copolymer adhesives, adhesive types, etc., can solve the problem of poor adhesion performance and inability to recycle and seal Problems such as re-separation of parts and irreversible adhesion performance, etc., to achieve reliable adhesion, low cost, and stable adhesion performance

Active Publication Date: 2018-05-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-response polymer to solve the problems of poor adhesion, irreversible adhesion, and inability to recycle the traditional underwater adhesive materials, as well as difficult re-separation of sealing parts caused by this. Adhesive material and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of underwater polymer adhesive adhesive material:

[0023] The amount of dopamine monomer substance is 0.19 mol, methoxyethyl acrylate is 0.95 mol, N,N-dimethylacrylamide is 0.48 mol, azobisisobutyronitrile is 0.016 mol, dissolved in anhydrous N,N- In dimethylformamide, evacuate under magnetic stirring and pass nitrogen three times, and react at 75° C. under normal pressure for 12 hours. After the reaction was completed, the crude product was obtained by suction filtration. Then it was dissolved in absolute ethanol, precipitated with n-hexane, and purified three times. Finally, the conversion of the polymer was 80%.

[0024] Preparation of underwater adhesive coating:

[0025] The prepared polymer was dissolved in absolute ethanol to form a solution with a mass fraction of 20 wt %. Then coated on the glass surface, the surface coating content is 0.1 mL / cm 2 , and baked at 70 ℃ for 2 h to achieve multi-responsive underwater adhesion properties on the sur...

Embodiment 2

[0030] Preparation of underwater polymer adhesive adhesive material:

[0031] The amount of dopamine monomer substance is 0.19 mol, methoxyethyl acrylate is 0.48 mol, N,N-dimethylacrylamide is 0.95 mol, azobisisobutyronitrile is 0.014 mol, dissolved in anhydrous N,N- In dimethylformamide, under magnetic stirring, vacuum-purge-nitrogen three times, and react at 85° C. under normal pressure for 12 hours. After the reaction was completed, the crude product was obtained by suction filtration. Then it was dissolved in absolute ethanol, precipitated with n-hexane, and purified three times. Finally, the conversion of the polymer was 82.6%.

[0032] Preparation of underwater adhesive coating:

[0033] The prepared polymer was dissolved in absolute ethanol to form a solution with a mass fraction of 30wt%. Then coated on the glass surface, the surface coating content is 0.16 mL / cm 2 , after baking at 80 ℃ for 2 h, the underwater adhesive coating with multi-response characteristics ...

Embodiment 3

[0038] Preparation of underwater polymer adhesive adhesive material:

[0039] The amount of dopamine monomer substance is 0.19 mol, methoxyethyl acrylate is 1.43 mol, and azobisisobutyronitrile is 0.014 mol, dissolved in anhydrous N,N-dimethylformamide, vacuumized under magnetic stirring -Blow nitrogen three times, react at 80°C under normal pressure for 12 hours. After the reaction was completed, the crude product was obtained by suction filtration. Then it was dissolved in absolute ethanol, precipitated with n-hexane, and purified three times. Finally, the conversion of the polymer was 86.5%.

[0040] Preparation of underwater adhesive coating:

[0041] The prepared polymer was dissolved in absolute ethanol to form a solution with a mass fraction of 25 wt%. Then coated on the glass surface, the surface coating content is 0.13 mL / cm 2 , after baking at 80℃ for 2 h, the underwater adhesive coating with multi-response characteristics was prepared.

[0042] Temperature Res...

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PUM

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Abstract

The invention discloses a multi-response polymer adhesive material. The material is prepared by using the following method: carrying out a reaction at 75-85 DEG C and normal pressure for 12h in the existence of nitrogen by taking a dopamine monomer, a thermosensitive monomer N,N-dimethylacrylamide and an alkyl acrylate monomer as raw materials, azobisisobutyronitrile as an initiator and an anhydrous organic solvent as a reaction medium, and carrying out conventional separation to obtain a multi-response underwater polymer adhesive, wherein the molar ratio of the dopamine monomer to the alkyl acrylate monomer to the thermosensitive acrylic acid monomer is 1 / 25 / 75-1 / 75 / 25, and the molar ratio of azobisisobutyronitrile to the dopamine monomer is 2 / 25-31. The underwater polymer adhesive material with multi-response property is prepared by the copolymerization of several functional monomers; and different from the adhesion property of a traditional underwater adhesive material, the multi-response polymer adhesive material realizes the dynamic regulation of adhesion strength and the effective separation of adhered materials.

Description

technical field [0001] The invention relates to a multi-response polymer adhesive adhesive material and its application, belonging to the technical field of engineering. Background technique [0002] Underwater adhesive material is a common engineering material, which is mainly used for the mutual bonding between materials and the sealing of moving parts in underwater operations. Compared with the traditional mechanical reinforcement and gasket sealing technology, the underwater adhesive material prepared by chemical synthesis has reliable, stable and durable adhesive performance. [0003] Most underwater adhesives on the market are usually based on epoxy resin systems. Its preparation method is usually to stir and disperse the auxiliary agent with the epoxy resin component A and the curing agent B component separately, and then uniformly mix the auxiliary agent-containing component A and component B. Although this type of glue has excellent adhesive performance under wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/14C09J133/24C08F8/32C08F220/28C08F220/54
CPCC08F8/32C08F220/28C08F220/281C08F220/54C09J133/24
Inventor 周峰马延飞麻栓红裴小维
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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