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Seawater-resistant normal-temperature quickly-cured adhesive

A fast-curing, seawater-resistant technology, used in adhesives, non-polymer adhesive additives, adhesive types, etc., to achieve strong adhesion and mechanical strength, excellent seawater resistance, and improved mechanical strength.

Active Publication Date: 2015-12-09
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, there is still a lack of special room temperature fast-curing adhesives with excellent practical effects in marine environments.

Method used

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  • Seawater-resistant normal-temperature quickly-cured adhesive
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  • Seawater-resistant normal-temperature quickly-cured adhesive

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Combining the characteristics of the required adhesive, the inventor prepared a seawater-resistant fast-curing adhesive that meets the requirements, and successfully solved the problems encountered in the project. The specific implementation method is: according to the weight ratio, 65 parts of E-44 epoxy resin, 18 parts of dibutyl phthalate, 3 parts of butanol, 3 parts of silane coupling agent KH-550, 10 parts of shell powder, Mix it into Agent A; then take 15 parts of T-31, 2 parts of quicklime, 2 parts of ketimine and 2 parts of DMP-30, and mix it into Agent B.

[0025] A and B agents are mixed according to the weight ratio of 5:1, and then the mixed adhesive is applied to the cleaned mussel shell and the surface of the sensor, and then the two can be bonded. It can be initially cured in 10 to 15 minutes, and can reach bonding strength after 2 hours of immersion in seawater. After 12 months of experimental observation, the adhesive can maintain a stable bonding stre...

Embodiment 2

[0032] According to the needs of the actual project, the inventor prepared an adhesive suitable for the instrument according to the following implementation method: according to the weight ratio, get 70 parts of E-51 epoxy resin, 15 parts of dibutyl phthalate, 3 parts of xylene, 3 parts of silane coupling agent KH-550, 2 parts of nano-silver powder and 8 parts of shell powder, mixed into agent A; take 18 parts of T-31, 2 parts of quicklime, 4 parts of ketimine and 2 parts of DMP-30 , and mix it into agent B.

[0033] Mix A and B agents according to the weight ratio of 5:1, and then apply the mixed adhesive evenly on the surface of marine equipment. Under normal circumstances, the required bonding strength can be achieved after 2 hours. If the equipment needs to be soaked in seawater for a long time, in order to ensure the bonding effect, the bonding part should be cured for 4 hours before being put into seawater. After 20 months of experimental observation in seawater, the a...

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Abstract

The invention relates to a seawater-resistant normal-temperature quickly-cured adhesive. The adhesive is formed by evenly mixing an agent A and an agent B in the weight ratio of 5:1. The agent A is prepared from, by weight, 65-75 parts of epoxy resin, 15-20 parts of flexibilizers, 1-4 parts of diluents, 1-4 parts of coupling agents, 1-4 parts of antifouling auxiliaries and 2-6 parts of filling auxiliaries. The agent B is prepared from, by weight, 15-20 parts of curing agents, 2-6 parts of water-absorbing agents, 2-6 parts of latent curing agents and 1-3 parts of promoters. The adhesive can be quickly cured in the normal-temperature and moist marine environment. Besides, after being socked by seawater for a long time, the adhesive still keeps good mechanical properties and chemical stability. The adhesive has good flexibility, and can improve fatigue resistance of marine equipment and flexibility of marine instrument design. In addition, the adhesive has the function of preventing biological adhesion in seawater.

Description

technical field [0001] The invention relates to an adhesive, which belongs to the field of adhesives, and in particular to a seawater-resistant adhesive with the function of preventing biological fouling and fast curing at room temperature. Background technique [0002] With the rapid development of marine economy, marine instruments and equipment are widely used. During use, marine instruments and equipment will be subject to seawater erosion and current impact, as well as the impact of water pressure and biological activities, and will inevitably be damaged. In the harsh marine environment, in order to maintain the long-term and stable operation of marine instruments and equipment, it is necessary to consider the design stage of the instrument structure and select structurally stable materials that are resistant to seawater erosion. With the development and maturity of adhesive technology, bonding technology has been widely used in the process of manufacturing, deploying ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/02C09J11/06C09J11/04
Inventor 孔祥峰吕婧张婧邹妍张述伟王昭玉褚东志吴丙伟吴宁郭翠莲曹璐
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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