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Dehydroabietylamine-based epoxy resin and preparation method and application thereof

A technology of dehydroabietic amine and epoxy resin, applied in the direction of epoxy resin glue, epoxy resin coating, adhesive type, etc., to achieve the effect of simple preparation process, good process controllability, and easy industrial implementation

Active Publication Date: 2014-09-17
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report about the epoxy resin based on dehydroabietamine

Method used

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  • Dehydroabietylamine-based epoxy resin and preparation method and application thereof
  • Dehydroabietylamine-based epoxy resin and preparation method and application thereof
  • Dehydroabietylamine-based epoxy resin and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039]Mix 100 parts by weight of dehydroabietic amine, 10 parts by weight of water and 500 parts by weight of epichlorohydrin, raise the temperature to 25°C, add 0.1 part by weight of tetramethylammonium chloride, react for 160 hours and then cool down to 10°C , and then dripping sodium hydroxide weight percentage content is 100 parts by weight of aqueous sodium hydroxide solution (that is, 30 parts by weight of sodium hydroxide and 70 parts by weight of water) of 30% by weight of sodium hydroxide, after 1h dripping, add 120 parts by weight of ethyl acetate A reaction system was formed and reacted at 50°C for 5h. After the reaction system was lowered to room temperature at 25°C, it was washed with 170 parts by weight of deionized water each time for a total of 4 times, and then the solvent was removed with a rotary evaporator, and vacuum-dried at 50°C for 12 hours to obtain a light yellow transparent viscous liquid, which was based on The epoxy resin of dehydroabietic amine is...

Embodiment 2

[0045] Mix 100 parts by weight of dehydroabietic amine, 30 parts by weight of water and 600 parts by weight of epibromohydrin, raise the temperature to 40°C, add 0.5 parts by weight of octadecyltrimethylammonium bromide, and react for 120 hours Cool down to 30°C, then dropwise add 120 parts by weight of an aqueous potassium hydroxide solution with a potassium hydroxide weight percentage of 35% (that is, 42 parts by weight of potassium hydroxide and 78 parts by weight of water), drop it for 1 hour, and then add chloroform 200 parts by weight to form a reaction system, and continue to react at 30° C. for 3 hours. After the reaction system was lowered to room temperature at 25°C, it was washed with 150 parts by weight of deionized water each time for a total of 3 times, and then the solvent was removed with a rotary evaporator, and vacuum-dried at 50°C for 12 hours to obtain an epoxy resin based on dehydroabietamine. Resin 136.8 parts by weight, based on dehydroabietic amine yiel...

Embodiment 3

[0049] Mix 100 parts by weight of dehydroabietic amine, 20 parts by weight of water and 400 parts by weight of epichlorohydrin, raise the temperature to 90°C, add 1.2 parts by weight of hexamethylenetetraammonium, react at 90°C for 72 hours and then cool down to 30°C, then dropwise add 180 parts by weight of barium hydroxide aqueous solution with a barium hydroxide weight percentage of 35% (that is, 63 parts by weight of barium hydroxide and 117 parts by weight of water), and after 1 hour, add 60 parts by weight of diethyl ether , forming a reaction system, and reacted at 20°C for 4h. After the reaction system was lowered to room temperature at 25°C, it was washed with 200 parts by weight of deionized water each time for a total of 4 times, and then the solvent was removed with a rotary evaporator, and vacuum-dried at 50°C for 12 hours to obtain an epoxy resin based on dehydroabietamine. Resin 136.8 parts by weight, based on dehydroabietic amine yield is 98.2%.

[0050] The d...

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Abstract

The invention discloses dehydroabietylamine-based epoxy resin shown as a formula I. The epoxy resin has a large-size hydrophenanthrene ring, high chain segment rigidity after being cured, and high mechanical property and thermal property. The invention also discloses a preparation method and application of the dehydroabietylamine-based epoxy resin. The preparation method is simple and high in operability and process controllability. The epoxy resin is particularly suitable for a composite material, an epoxy adhesive and a coating, and the prepared curing product has high mechanical property and thermal property. The formula I is shown in the specifications.

Description

technical field [0001] The invention relates to the field of epoxy resin and its preparation, in particular to an epoxy resin based on dehydroabietic amine, its preparation method and application. Background technique [0002] Bio-based materials use renewable resources as the main raw material. While reducing the consumption of petroleum resources in the plastics industry, it also reduces the environmental pollution of petroleum-based chemical raw materials in the production process, and has the dual effects of saving petroleum resources and protecting the environment. As early as a few years ago, the United States, Japan, and the European Union successively passed strategic bills and standards such as the Biomass Research and Development Act, the Biotechnology Strategy Outline, and the European environmental standard EN13432 to promote the healthy development of the economy and the environment. In my country, Premier Wen Jiabao made a solemn promise to the world at the end...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D303/36C07D301/27C08G59/28C08L63/00C09D163/00C09J163/00
Inventor 刘小青李超朱锦
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI