A kind of rosin epoxy resin composition and preparation method thereof

A technology for rosin epoxy resin and epoxy resin, which is applied in the field of resin compositions, can solve the problems of complex methods, high toxicity of raw materials, and various types, and achieves the effects of simple preparation steps, easy preparation steps, and widening application fields.

A technology for rosin epoxy resin and epoxy resin, which is applied in the field of resin compositions, can solve the problems of complex methods, high toxicity of raw materials, and various types, and achieves the effects of simple preparation steps, easy preparation steps, and widening application fields.

CN105778048BActive Publication Date: 2018-04-10SHANDONG UNIV OF SCI & TECH
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  • A kind of rosin epoxy resin composition and preparation method thereof
  • A kind of rosin epoxy resin composition and preparation method thereof
  • A kind of rosin epoxy resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) First mix 3 kilograms of bisphenol A epoxy resin and 4.5 kilograms of 400# epoxy resin, and heat appropriately to make it uniform;

[0030] (2) Take 10 kilograms of modified rosin II and mix with 7.5 kilograms of epoxy resin in step (1), heat to 130° C., and stir slowly until the mixture melts and becomes a uniform viscous liquid;

[0031] (3) Keep the temperature of the uniform viscous liquid at 130°C, add 0.08 kg of dodecyltrimethylammonium bromide therein, and stir evenly;

[0032] (4) Import the mixed solution of step (3) into the pouring machine mold, and carry out pressurized pre-curing time under the conditions of temperature 130°C and pressure 3Mpa for 1 hour;

[0033] (5) Return to normal pressure, cure for 3 hours at a temperature of 150° C., and cool down to obtain a rosin epoxy resin composition.

Embodiment 2

[0035] (1) First mix 4.5 kilograms of bisphenol A epoxy resin and 3 kilograms of 400# epoxy resin, and heat appropriately to make it uniform;

[0036] (2) Take 10 kilograms of modified rosin II and mix with 7.5 kilograms of epoxy resin in step (1), heat to 130° C., and stir slowly until the mixture melts and becomes a uniform viscous liquid;

[0037] (3) Keep the temperature of the uniform viscous liquid at 130°C, add 0.08 kg of dodecyltrimethylammonium bromide therein, and stir evenly;

[0038] (4) Import the mixed solution of step (3) into the pouring machine mold, and carry out pressurized pre-curing time under the conditions of temperature 130°C and pressure 3Mpa for 1 hour;

[0039] (5) Return to normal pressure, cure for 3 hours at a temperature of 150° C., and cool down to obtain a rosin epoxy resin composition.

Embodiment 3

[0041] (1) First mix 3 kilograms of bisphenol A epoxy resin and 4.5 kilograms of 400# epoxy resin, and heat appropriately to make it uniform;

[0042] (2) Mix 10 kg of modified rosin II, 1 kg of citric acid with 7.5 kg of epoxy resin in step (1), heat to 130° C., and stir slowly until the mixture melts and becomes a uniform viscous liquid;

[0043] (3) Keep the temperature of the uniform viscous liquid at 130°C, add 0.08 kg of dodecyltrimethylammonium bromide therein, and stir evenly;

[0044] (4) Import the mixed solution of step (3) into the pouring machine mold, and carry out pressurized pre-curing time under the conditions of temperature 130°C and pressure 3Mpa for 1 hour;

[0045] (5) Return to normal pressure, cure for 3 hours at a temperature of 150° C., and cool down to obtain a rosin epoxy resin composition.

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Abstract

The invention relates to the field of resin compositions, and in particular to a rosin epoxy resin composition and a preparation method thereof. The rosin epoxy resin is prepared from modified rosin, epoxy resin, citric acid and a promoter, wherein the epoxy resin comprises epoxy resin I and epoxy resin II; the epoxy resin I is bisphenol A type epoxy resin; the epoxy resin II is aliphatic epoxy resin; the mass ratio of the modified rosin to the epoxy resin I, the epoxy resin II, the citric acid and the promoter is 1:(0-0.6):(0-0.6):(0-0.2):(0.005-0.03); the mass ratio of the modified rosin to the epoxy resin is 1:(0.5-1.2). The rosin epoxy resin composition provided by the invention is uniform and smooth in appearance, and by changing the types or the amounts of the modified rosin, the epoxy resin and the citric acid, properties such as the color, the toughness and the hardness of a rosin epoxy resin composition material can be modified, so that the application range of the rosin epoxy resin composition material can be greatly widened.

Description

technical field [0001] The invention relates to the field of resin compositions, in particular to a rosin epoxy resin composition and a preparation method thereof. Background technique [0002] Bio-based polymer materials refer to a class of materials prepared with renewable substances as the main raw materials. They have the characteristics of greenness, environmental friendliness, and renewable raw materials that traditional polymer materials do not have. They can reduce human consumption of non-renewable materials such as petroleum and coal Dependence on resources has the dual effects of protecting the environment and saving resources, and is currently a hot research topic at home and abroad. [0003] Rosin is processed from the exudation of pine or pine tree trunks. It is a renewable, non-toxic, degradable and low-cost natural resin that has been widely used in adhesives, coatings, inks and other fields. my country is rich in rosin resources. In recent years, the annual...

Claims

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Application Information

Patent Timeline
10 Apr 2018
Publication
CN105778048B
IPC
C08G59/24; C08G59/42
CPC
C08G59/24; C08G59/245; C08G59/4207; C08G59/4215
Inventors
刘迪; 张成慧