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Nanometer filler cooperatively filling epoxy resin composite coating as well as preparation method and application thereof

A technology of epoxy resin and nano filler, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of poor wear resistance, achieve the effects of improved wear resistance, firm interface bonding, and low production cost

Inactive Publication Date: 2015-01-07
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a nano filler synergistically filled epoxy resin composite coating, which solves the problem of poor wear resistance of the epoxy resin / carbon fiber fabric composite coating formed by a single nanoparticle modified epoxy resin

Method used

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  • Nanometer filler cooperatively filling epoxy resin composite coating as well as preparation method and application thereof

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preparation example Construction

[0031] The preparation method of above-mentioned coating comprises the following steps:

[0032] Step 1: Incorporate nano-SiO 2 Mix with coupling agent KH550 and acetone at a mass ratio of 1:1:8-10, ultrasonically treat for 20-30 minutes, and dry at 75°C-85°C to obtain modified nano-SiO 2 , spare; nano-SiO 2 It is spherical, with an average particle size of 20nm and a purity of ≥99%;

[0033] Step 2: Incorporate nano-Al 2 o 3Mix with coupling agent KH550 and acetone at a mass ratio of 1:1:8-10, ultrasonically treat for 20-30 minutes, and dry at 75°C-85°C to obtain modified nano-Al 2 o 3 , spare; nano-Al 2 o 3 It is spherical, with an average particle size of 70nm and a purity of ≥99%;

[0034] Step 3: Mix epoxy resin and butanone according to the mass-volume ratio of 1g: 2 ~ 3mL to form an epoxy / butanone solution to obtain solution A; mix polyamide resin and toluene according to the mass-volume ratio of 1g: 2 ~ 3mL was made into a polyamide / toluene solution to obtain ...

Embodiment 1

[0053] Step 1: Incorporate nano-SiO 2 Mix with coupling agent KH550 and acetone at a mass ratio of 1:1:8, ultrasonically treat for 20 minutes, and dry at 75°C to obtain modified nano-SiO 2 , spare; nano-SiO 2 It is spherical, with an average particle size of 20nm and a purity of ≥99%;

[0054] Step 2: Incorporate nano-Al 2 o 3 Mix with coupling agent KH550 and acetone at a mass ratio of 1:1:8, ultrasonically treat for 20 minutes, and dry at 75°C to obtain modified nano-Al 2 o 3 , spare; nano-Al 2 o 3 It is spherical, with an average particle size of 70nm and a purity of ≥99%;

[0055] Step 3: Mix epoxy resin E51 and methyl ethyl ketone according to the mass-volume ratio of 1g:2mL to form an epoxy / butanone solution to obtain solution A; mix polyamide resin 400 and toluene according to the mass-volume ratio of 1g:2mL Become polyamide / toluene solution, obtain solution B, standby;

[0056] Step 4: Add the modified nano-Al obtained in step 2 to the solution A obtained in s...

Embodiment 2

[0064] Step 1: Incorporate nano-SiO 2 Mix with coupling agent KH550 and acetone at a mass ratio of 1:1:9, ultrasonically treat for 25 minutes, and dry at 85°C to obtain modified nano-SiO 2 , spare; nano-SiO 2 It is spherical, with an average particle size of 20nm and a purity of ≥99%;

[0065] Step 2: Incorporate nano-Al 2 o 3 Mix with coupling agent KH550 and acetone at a mass ratio of 1:1:9, ultrasonically treat for 25 minutes, and dry at 85°C to obtain modified nano-Al 2 o 3 , spare; nano-Al 2 o 3 It is spherical, with an average particle size of 70nm and a purity of ≥99%;

[0066] Step 3: Mix epoxy resin E44 and methyl ethyl ketone according to the mass-volume ratio of 1g:3mL to form an epoxy / butanone solution to obtain solution A; mix polyamide resin 300 and toluene according to the mass-volume ratio of 1g:3mL Become polyamide / toluene solution, obtain solution B, standby;

[0067] Step 4: Add the modified nano-Al obtained in step 2 to the solution A obtained in s...

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Abstract

The invention discloses a nanometer filler cooperatively filling epoxy resin composite coating. The composite coating is prepared from the following components in percentage by weight: 60-70 percent of epoxy resin, 26-34 percent of polyamide resin, 1-3 percent of modified nanometer Al2O3 and 1-3 percent of modified nanometer SiO2, wherein sum of the mass percent of the components is 100 percent. A preparation method comprises the following steps: respectively preparing the modified nanometer SiO2 and the modified nanometer Al2O3, respectively preparing the epoxy resin and the polyamide resin into solutions, adding the modified nanometer Al2O3 and the modified nanometer SiO2 in the epoxy resin solution, stirring, then adding the polyamide resin solution, soaking treated carbon fiber fabrics, and curing to obtain the composite coating. The nanometer filler cooperatively filling epoxy resin composite coating is applied to the surface of a steel block. With the adoption of the preparation method, the problem of poor abrasion resistance of a single nano particle filling epoxy resin composite coating is solved, and the prepared composite coating has good impact and abrasion resistances.

Description

technical field [0001] The invention belongs to the technical field of polymer self-lubricating materials, and the invention relates to a nano-SiO 2 、Al 2 o 3 Synergistic filling epoxy resin composite coating, the invention also relates to the preparation method of the coating, and the invention also relates to the application of the coating. Background technique [0002] Epoxy resin is a thermosetting polymer material with high strength, good bonding performance, excellent heat resistance, corrosion resistance and load-bearing capacity. Most epoxy resins are composed of epichlorohydrin (C 3 h 5 ClO) and bisphenol A (phenol methane) polymerization. Compared with thermoplastic polymer materials, epoxy resin is brittle and hard, with low fracture energy, and it is prone to brittle fracture when it rubs against the metal counterpart. Usually, it is necessary to add nano- and micron-sized fillers to significantly improve its comprehensive performance and friction. wear perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K9/06C08K3/22C08K3/36C08K7/06C09D163/00C09D7/12
Inventor 蒋百灵魏风军
Owner XIAN UNIV OF TECH
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