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Nylon crystal reinforced epoxy resin coating and preparation method thereof

A technology of epoxy resin coating and epoxy resin, which is applied in the direction of epoxy resin coatings, coatings, anti-corrosion coatings, etc., and can solve poor toughness, insufficient transverse performance and interlayer shear strength, and poor impact damage resistance And other issues

Active Publication Date: 2019-04-02
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at defects such as poor toughness after curing of the existing epoxy resin, poor impact damage resistance, large dispersion of material properties, insufficient transverse performance and interlayer shear strength, etc., and epoxy resin Blended with thermoplastic materials

Method used

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  • Nylon crystal reinforced epoxy resin coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The epoxy resin coating without adding nylon crystal reinforced is prepared according to the following proportions (mass percentage):

[0019] Epoxy resin 69.2%;

[0020] Curing agent is 20.7%;

[0021] Nylon-6 0%;

[0022] Hexafluoroisopropanol 10%;

[0023] 1ml each of leveling agent and defoamer;

[0024] Add nylon-6 to the hexafluoroisopropanol solvent, seal and stand for 5 hours to completely dissolve, then place the epoxy resin in an oven, heat it at 60 °C for 15 min, and after the viscosity drops, take an appropriate amount of epoxy resin. The resin was added to the nylon-6 / hexafluoroisopropanol system. The nylon-6 / hexafluoroisopropanol / epoxy resin system was placed on a constant temperature magnetic stirrer, a magnetic stirring bar was added, and it was set to stir at room temperature for 2 h until the system was uniform, colorless and transparent. Add epoxy resin curing agent, 1ml leveling agent and 1ml defoamer into the blend system, stir well with a glas...

Embodiment 2

[0026] The epoxy resin coating reinforced by nylon crystals is prepared according to the following proportions (mass percentage):

[0027] Epoxy resin 67.3%;

[0028] Curing agent is 20.2%;

[0029] Nylon-6 2.5%;

[0030] Hexafluoroisopropanol 10%;

[0031] 0.5ml each of leveling agent and defoamer;

[0032] Add nylon-6 to the hexafluoroisopropanol solvent, seal and stand for 5 hours to completely dissolve, then place the epoxy resin in an oven, heat it at 60 °C for 15 min, and after the viscosity drops, take an appropriate amount of epoxy resin. The resin was added to the nylon-6 / hexafluoroisopropanol system. The nylon-6 / hexafluoroisopropanol / epoxy resin system was placed on a constant temperature magnetic stirrer, a magnetic stirring bar was added, and it was set to stir at room temperature for 2 h until the system was uniform, colorless and transparent. Add epoxy resin curing agent, leveling agent and defoamer into the blend system, stir well with a glass rod, seal and...

Embodiment 3

[0034] The epoxy resin coating reinforced by nylon crystals is prepared according to the following proportions (mass percentage):

[0035] Epoxy resin 65.4%;

[0036] Curing agent is 19.6%;

[0037] Nylon-6 5%;

[0038] Hexafluoroisopropanol 10%;

[0039] 1ml each of leveling agent and defoamer;

[0040] Add nylon-6 to the hexafluoroisopropanol solvent, seal and stand for 5 hours to completely dissolve, then place the epoxy resin in an oven, heat it at 60 °C for 15 min, and after the viscosity drops, take an appropriate amount of epoxy resin. The resin was added to the nylon-6 / hexafluoroisopropanol system. The nylon-6 / hexafluoroisopropanol / epoxy resin system was placed on a constant temperature magnetic stirrer, a magnetic stirring bar was added, and it was set to stir at room temperature for 2 h until the system was uniform, colorless and transparent. Add a curing agent, a drop of leveling agent, and a drop of defoamer to the blend system, which is about 30% of the mass ...

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Abstract

The invention relates to a nylon crystal reinforced epoxy resin coating and a preparation method thereof, wherein the nylon crystal reinforced epoxy resin coating comprises, by mass, 2.5-10% of nylon-6, 61.5-67.3% of an epoxy resin, 10% of hexafluoroisopropanol, 18.5-20.2% of a curing agent, 0.5-2 ml of a leveling agent, and 0.5-2 ml of an anti-foaming agent, and dissolving, compounding, heating stirring, blending curing, baking and other steps are performed to prepare the coating. According to the present invention, the mechanical property and the corrosion resistance of the epoxy resin afterthe curing are improved, and the optimal compounding ratio is obtained.

Description

technical field [0001] The invention relates to the field of composite polymer materials, in particular to a nylon crystal-reinforced epoxy resin coating and a preparation method thereof. Background technique [0002] Corrosion of metals has always been a serious problem that plagues social and economic development. Metal protective coatings are often widely used as the most economical and practical protection measures for metal corrosion protection. This paper attempts to solve a series of problems such as poor mechanical properties of epoxy resin cured products by blending and modifying epoxy resin by using nylon-6, while ensuring the excellent performance of epoxy resin material itself. [0003] Epoxy resin, phenolic resin and unsaturated polyester resin are currently known as the three general-purpose thermosetting resins, and they are currently the most used and widely used types of thermosetting resins. Epoxy resin contains unique epoxy groups, as well as reactive gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D177/02C09D5/08
CPCC08L2201/10C09D5/08C09D163/00C08L77/02
Inventor 李照磊赵宣宣曾瑜
Owner JIANGSU UNIV OF SCI & TECH
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