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High-performance phenalkamine curing agent for epoxy resin and preparation method thereof

A technology for phenalkamine curing agent and epoxy resin, which is applied in the field of high-performance phenalkamine curing agent for epoxy resin and its preparation, can solve the problems of low strength, high brittleness of adhesive, influence on construction and application, etc., and achieves simple production method. , Avoid risks, and solve the effect of low intensity in the later stage

Inactive Publication Date: 2011-12-28
湖北湖大资产经营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the epoxy resin phenalkamine curing agent is modified according to the general method, the prepared adhesive is brittle and has low strength in the later stage, which affects the construction application in low temperature and humid environment

Method used

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  • High-performance phenalkamine curing agent for epoxy resin and preparation method thereof
  • High-performance phenalkamine curing agent for epoxy resin and preparation method thereof
  • High-performance phenalkamine curing agent for epoxy resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Construction and bridge reinforcement adhesive components (percentage by weight)

[0050]

[0051]

[0052] (2) Preparation method

[0053] Weigh CYD128, EPG660 and fumed silica according to the formula, stir well, then add filler, KH-550, stir well, finally add this curing agent, DMP-30 and pigment, stir well and proceed to construction.

Embodiment 2

[0055] (1) Sealing adhesive components (percentage by weight)

[0056]

[0057] (2) Preparation method

[0058] Weigh CYD128, E-44, EPG660, fumed silica according to the proportion, stir evenly, then add filler, KH-550, stir evenly, finally add this curing agent, DMP-30 and pigment, stir well and carry out sealing and bonding .

[0059] 3. Effect verification

[0060] The mechanical property test (shown in table 1) of the construction and bridge reinforcement adhesive prepared according to embodiment 1

[0061] Table 1 prepares the mechanical properties of repair glue with this curing agent

[0062] Take the repair glue in GB50367-2006 Concrete Structure Reinforcement Design Code as an example:

[0063]

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Abstract

The invention discloses a high-performance phenalkamine curing agent for epoxy resin and a preparation method thereof, and relates to a phenalkamine epoxy resin curing agent. The product is a low-viscosity epoxy resin curing agent suitable for low temperature and humid construction . The weight percent of this curing agent component is: phenol 36-45, long-chain phenol 5-8, formaldehyde solution 18-22, ethylene polyamine 20-25, 4,4'-diaminodiphenylmethane 3.5-5.5, Polyphenyl polyaminomethane 1.5-2.5. The present invention adopts the method of normal pressure reaction, which avoids the risk of high temperature and high pressure synthesis; the production method is simple; because the curing agent has high activity, low viscosity, good construction and high strength, it can timely solve the problem of slow curing of epoxy resin at low temperature and low strength in the later stage. low downside. And the cured product obtained by curing the epoxy resin with this curing agent overcomes the shortcoming of the brittleness of the general phenalkamine. It is suitable for fields such as building reinforcement, bridge reinforcement, sealing bonding, water conservancy engineering, and anti-corrosion coatings.

Description

technical field [0001] The invention relates to an epoxy resin curing agent, in particular to a high-performance phenalkamine curing agent for epoxy resin and a preparation method thereof. The product is a low-viscosity epoxy resin curing agent suitable for low-temperature and humid construction. Background technique [0002] The invention of epoxy resin has gone through a long historical period. In 1947, the Devoe-Raynolds Company of the United States produced epoxy resin with industrial production value for the first time. Soon the Swiss Ciba company, the American Shell company and the De Chemical company all started the industrial production and application development of epoxy resin. The development of epoxy resin in my country began in 1956, and it was first successful in Shenyang and Shanghai. Industrial production began in Shanghai in 1958. After more than 40 years of struggle, the production and application of epoxy resin in my country has developed rapidly, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/50
Inventor 胡高平高杰
Owner 湖北湖大资产经营有限公司
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