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High-strength adhesive as well as preparation method and application thereof

An adhesive, high-strength technology, used in adhesives, polymer adhesive additives, surface pretreatment bonding methods, etc., can solve the problems of high rigidity and brittleness, poor bonding strength, etc.

Active Publication Date: 2014-03-26
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although epoxy adhesive has high compressive strength and excellent water resistance, its bonding strength is poor due to its high rigidity and brittleness, and the bonding strength of the adhesive has a great influence on the buoyancy material after bonding and covering treatment. Therefore, it is of great significance to develop adhesives that have both high compressive strength and high bonding strength, which can be used to prepare high-strength buoyant materials and can be used for buoyant material bonding and coating treatment

Method used

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  • High-strength adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Embodiment 1: prepare high-strength adhesive

[0118] The implementation steps of this embodiment are as follows:

[0119] (i) Raw materials used to prepare high-strength adhesives:

[0120] 830 modified aromatic amine curing agent is a product sold by Huntsman under the tradename Aradur 830.

[0121] 850 modified aromatic amine curing agent is a product sold by Huntsman under the tradename Aradur 850.

[0122] Bisphenol A epoxy resin is a product sold under the trade name D.E.R. 331 by The Dow Chemical Company.

[0123] (ii) Preparation of epoxy-terminated polyepichlorohydrin resin

[0124] A, the preparation of polyepichlorohydrin

[0125] Under the conditions of 0.1% boron trifluoride ethyl ether Lewis acid catalyst based on the weight of epichlorohydrin and a temperature of 60 ° C, according to the molar ratio of epichlorohydrin to ethylene glycol polyol 4:1, let epichlorohydrin and Polyhydric alcohols were polymerized for 8 hours to obtain polyepichlorohydrin;...

Embodiment 2

[0130] Embodiment 2: prepare high-strength adhesive

[0131] The implementation steps of this embodiment are as follows:

[0132] (i) Raw materials used in the preparation of high-strength adhesives:

[0133] 830 modified aromatic amine curing agent is a product sold by Huntsman under the tradename Aradur 830.

[0134] 850 modified aromatic amine curing agent is a product sold by Huntsman under the tradename Aradur 850.

[0135] Bisphenol F epoxy resin is sold under the trade name NPEF-170 by Nan Ya Epoxy Resin Co., Ltd.

[0136] (ii) Preparation of epoxy-terminated polyepichlorohydrin resin:

[0137] A, the preparation of polyepichlorohydrin

[0138] Under the conditions of 0.01% tin tetrachloride Lewis acid catalyst based on the weight of epichlorohydrin and a temperature of 40 ° C, according to the molar ratio of epichlorohydrin to glycerol polyol 600:1, let epichlorohydrin and polyhydric Alcohol was polymerized for 6 hours to obtain polyepichlorohydrin;

[0139] B, p...

Embodiment 3

[0143] Embodiment 3: prepare high-strength adhesive

[0144] The implementation steps of this embodiment are as follows:

[0145] (i) Raw materials used to prepare high-strength adhesives:

[0146] 830 modified aromatic amine curing agent is a product sold by Huntsman under the tradename Aradur 830.

[0147] 850 modified aromatic amine curing agent is a product sold by Huntsman under the tradename Aradur 850.

[0148] Novolac epoxy resin is a product sold under the tradename F-51 by Jiangsu Sanmu Chemical Co., Ltd.

[0149] (ii) Preparation of epoxy-terminated polyepichlorohydrin resin

[0150] A, the preparation of polyepichlorohydrin

[0151] Under the conditions of 1.0% aluminum trichloride Lewis acid catalyst based on the weight of epichlorohydrin and a temperature of 80 ° C, according to the molar ratio of epichlorohydrin to propylene glycol polyol 100:1, the reaction between epichlorohydrin and polyol is carried out. Polymerization for 4 hours to obtain polyepichlor...

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Abstract

The invention relates to a high-strength adhesive as well as a preparation method and application thereof. The high-strength adhesive comprises liquid epoxy resin, a modifier and curing agents. The high-strength adhesive has the beneficial effects that the high-strength adhesive is used for preparing buoyancy materials, the buoyancy materials bonded and coated with the high-strength adhesive have the characteristic of high hydrostatic pressure strength, and the water absorption of the buoyancy materials in the range of 30-120MPa is less than 1%, therefore, the finished products of the buoyancy materials formed after the buoyancy materials produced with the adhesive are bonded and coated with the adhesive can absolutely meet the requirements of 3000-11500m deep sea detection devices.

Description

【Technical field】 [0001] The invention belongs to the technical field of composite materials. More specifically, the present invention relates to a high-strength adhesive, a method for preparing the high-strength adhesive, and a use of the high-strength adhesive. 【Background technique】 [0002] There are abundant resources in the deep sea, and the exploration and development of these resources cannot be separated from the development of deep diving technology. Deep-sea submersibles, especially deep-sea manned submersibles, are one of the frontiers and commanding heights of ocean development. Due to its deep dive depth and high environmental pressure, it is not enough to rely solely on compressed air to force out the seawater in the air chamber. Unpowered floating technology is usually used, which requires the development of lightweight and high-strength solid buoyancy materials. [0003] Solid buoyancy material (SBM) is essentially a low-density, high-strength porous struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08L63/04C08L63/00C08L75/04C08L71/08C08G59/50C08K7/28C09J163/02C09J163/04C09J11/06C09J11/08C09J5/02C08J7/04
Inventor 于良民赵海洲倪春花李霞闫雪峰李昌诚姜晓辉张志明董磊夏树伟包木太
Owner OCEAN UNIV OF CHINA
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