A kind of application of graphene in epoxy resin composite material

A technology of epoxy resin and composite material, applied in the field of polymer material science, can solve the problems of poor compatibility of polymer materials, low reactivity of graphene, difficult polymer materials, etc. The effect of good mechanical properties

Active Publication Date: 2020-05-19
盐城百佳年代薄膜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of application of graphene in epoxy resin composite material, solve the problem that graphene in the prior art has low reactivity, poor compatibility with macromolecular materials, and poor dispersion, and it is difficult to directly combine with macromolecular materials. complex technical issues

Method used

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  • A kind of application of graphene in epoxy resin composite material
  • A kind of application of graphene in epoxy resin composite material
  • A kind of application of graphene in epoxy resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Synthesis of curing agent pentaerythritol tetramercapto propionate epoxy resin prepolymer (PPTM)

[0037] Add raw material 3-mercaptopropionic acid (44.48g, 0.42mol), pentaerythritol (15.13g, 0.11mol), catalyst p-toluenesulfonic acid (0.90g, 0.0052mol), solvent toluene (90.06mL, 1.13 mol) and a stir bar. Put the three-neck flask into the oil pan, set up the oil-water separator and the spherical condenser in sequence, control the temperature in the oil pan at 110°C, and reflux for 8 hours. When the reaction proceeds to about 2 hours, water will appear in the oil-water separator, and the liquid in the flask will change from cloudy to clear as the reaction progresses. After the reaction, the solution was filtered through a funnel, and the filtered object was washed with alkali to neutrality, and then the washed solution was distilled under reduced pressure to obtain a colorless oily liquid. The solution was purified by acetic acid and petroleum ether (1:1) to obtain ...

Embodiment 2

[0042] Under the situation of not changing other proportions of Example 1, only change graphene to account for the percentage by weight of epoxy resin (128) to be 0%, component A and component B are mixed uniformly, join in the tetrafluoroethylene model plate Prepare a sample, and test the tensile properties of the prepared sample after fully curing.

Embodiment 3

[0044]Under the situation of not changing other proportions of Example 1, only changing graphene to account for epoxy resin (128) weight percentage is 5%, component A and component B are mixed uniformly, join in the tetrafluoroethylene model plate Prepare a sample, and test the tensile properties of the prepared sample after fully curing.

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Abstract

The invention relates to an application of graphene to an epoxy resin composite material. A prepared PPTM (pentaerythritol tetra(mercaptopropionate) epoxy resin prepolymer) curing agent is adopted forcuring, the use amount of graphene, the use quantity of the curing agent and the variety of the curing agent are adjusted for optimized combination, and the epoxy resin composite polymer material containing graphene is prepared. The polymer material has the characteristics of being high in curing speed, good in mechanical property, low in cost and the like, graphene is dispersed more uniformly ina base material, compatibility of graphene and epoxy resin is good, the preparation method is simple, and little environmental pollution is produced.

Description

technical field [0001] The invention belongs to the field of polymer material science, and in particular relates to an application of graphene in epoxy resin composite materials. Background technique [0002] Epoxy resins are mainly used in coatings, civil engineering, material engineering, electrical and electronic industries and a small amount of adhesives. But in 2010, the application field of epoxy resin has undergone obvious changes, and its application in the field of adhesives has greatly increased and is becoming more and more extensive. At the same time, epoxy resin has a wide range of applications in electronics, electrical appliances, aerospace, coatings and other fields. Among them, modified coatings are the most widely used, and modified coatings show better performance and are favored by people. [0003] The development space of epoxy resin is huge, the market demand for epoxy resin is also increasing, and its performance requirements are gradually improving....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/66C08G59/16C08K3/04
CPCC08G59/1483C08G59/66C08K3/04
Inventor 薛志强
Owner 盐城百佳年代薄膜科技有限公司
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