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Preparation and use method of polyphenol-polyethylene glycol-based eutectic adhesive

A polyethylene glycol-based, polyethylene glycol technology, which is applied in the field of preparation of polyphenol-polyethylene glycol-based eutectic adhesives, can solve the problems of reduced adhesion strength, limitation, loss, etc., and achieves adhesion speed Fast, fast adhesion, wide range of applied materials

Active Publication Date: 2022-03-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this polyethylene glycol-polyphenol adhesive material suffers from loss of solvent water during use, which significantly reduces the adhesive strength, thus limiting the practical application of this type of adhesive

Method used

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  • Preparation and use method of polyphenol-polyethylene glycol-based eutectic adhesive
  • Preparation and use method of polyphenol-polyethylene glycol-based eutectic adhesive
  • Preparation and use method of polyphenol-polyethylene glycol-based eutectic adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The preparation steps of polyphenol-polyethylene glycol-based deep eutectic adhesive are as follows:

[0057] Mix 1.7g of tannic acid (TA) and 1.3g of linear polyethylene glycol (PEG) powder with a molecular weight of 4kDa in a mortar, then transfer it to a 10mL screw bottle, and carry out at 80°C. Heated in a water bath for 10 minutes and stirred several times to obtain a deep eutectic adhesive. Finally, the obtained eutectic adhesive was placed in a vacuum drying pump for 24 h to remove the air bubbles inside. The preparation process is as figure 1 shown.

Embodiment 2

[0059] With the preparation method described in Example 1, the difference is that pyrogallol (PG) and catechol (PC) are used to replace tannic acid respectively; for the eutectic adhesives prepared by different polyphenols, see figure 2 .

Embodiment 3

[0061] The same as the preparation method described in Example 1, except that polyethylene glycol with a molecular weight of 2, 6 and 10 kDa is used instead of polyethylene glycol with a molecular weight of 4 kDa.

[0062] Comparison of adhesion strength of eutectic adhesives with different PEG molecular weights image 3 As shown, it can be seen that the adhesion strength of the eutectic adhesive is the highest when the molecular weight of PEG is 10kDa.

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Abstract

The invention relates to the technical field of eutectic adhesives, in particular to a polyphenol-polyethylene glycol-based eutectic adhesive as well as a preparation method and a use method thereof. The eutectic adhesive is simple and easy to operate, non-volatile and high in environmental friendliness; the adhesive strength is high, the adhesive speed is high, and rapid adhesion can be achieved after the adhesive is cooled to the room temperature; the properties of organic solvent resistance and low temperature resistance are realized; multiple times of cyclic utilization can be realized in a heating-cooling mode; the low-eutectic-melting adhesive is simple in preparation process and wide in application range, can be used for adhesion of various substrates such as glass, steel sheets, PMMA (polymethyl methacrylate), PTFE (polytetrafluoroethylene), PET (polyethylene terephthalate), PVC (polyvinyl chloride), silica gel, wood, PVC foam, ceramic tiles or stone products, is suitable for strong adhesion of various engineering materials, particularly glass and steel products, and has the potential to be used as a hot-melting non-metal welding agent to be applied to actual production and life.

Description

technical field [0001] The invention relates to the technical field of eutectic adhesives, in particular to a method for preparing and using a polyphenol-polyethylene glycol-based eutectic adhesive. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] In recent years, mussel bionic materials have been favored by scientists. In nature, mussels can tightly bind to the substrate surface in seawater by secreting adhesive proteins to form tough adhesion plaques. Among them, dopa with a catechol group is considered to be the most important adhesive primer at the plaque interface. The main reason for dopa-induced adhesion is that the catechol group can not only interact with the C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/02C09J11/06
CPCC09J171/02C09J11/06C08K5/13C08K5/1545
Inventor 崔基炜刘含茹耿慧敏郝京诚
Owner SHANDONG UNIV
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