Metal/polymer composite coating and manufacturing method thereof

A composite coating and polymer technology, applied in metal material coating process, coating, liquid chemical plating, etc., can solve the problems of limited polymer application, poor powder fluidity, low efficiency of spray film formation, etc., to achieve good Application prospects and economic benefits, low cost, low equipment cost effect

Active Publication Date: 2016-03-23
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the application of polymers in thermal spraying technology often has problems such as light weight of spray powder, p

Method used

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  • Metal/polymer composite coating and manufacturing method thereof
  • Metal/polymer composite coating and manufacturing method thereof
  • Metal/polymer composite coating and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1:

[0033] In this embodiment, the base material is a Q235 steel sheet with a thickness of about 2mm, the thickness of the PE / Cu composite coating on the surface of the base is 400 μm, and the coating is well combined with the base material; the specific preparation method of the PE / Cu composite coating is as follows:

[0034] 1. The polyethylene powder is ultrasonically cleaned with acetone. After the cleaning is completed, the pretreatments of degreasing, coarsening, sensitization, and activation are carried out in sequence, and then the pretreated polyethylene powder is chemically in the electroless copper plating bath. For copper plating, adjust the pH value with NaOH solution during the plating process. After the copper plating is completed, take it out, rinse with deionized water, and dry to obtain PE / Cu composite microspheres;

[0035] 2. Wash the substrate with acetone, hydrochloric acid, and deionized water in sequence, and use 60 mesh brown corundum sand to ...

Example Embodiment

[0041] Example 2:

[0042] In this embodiment, the base material is a 45 steel sheet with a thickness of about 2 mm, the thickness of the PE / Ni composite coating on the surface of the base is 400 μm, and the coating is well combined with the base material; the specific preparation method of the PE / Ni composite coating is as follows:

[0043] 1. The polyethylene powder is ultrasonically cleaned with acetone. After the cleaning is completed, pretreatments for roughening, sensitization and activation are carried out in sequence, and then the pretreated polyethylene powder is electroless nickel-plated in the electroless nickel plating bath. After the nickel plating is completed, take it out, rinse with deionized water, and dry to obtain PE / Ni composite microspheres;

[0044] 2. Wash the substrate with acetone, hydrochloric acid, and deionized water in sequence, and use 60 mesh brown corundum sand for surface sandblasting to roughen the 45 steel sheet. The air pressure for sandblasting is...

Example Embodiment

[0050] Example 3:

[0051] In this embodiment, the base material is a Q345 steel sheet with a thickness of about 2mm, the thickness of the PP / Cu composite coating on the surface of the base is 400 μm, and the coating is well combined with the base material; the specific preparation method of the PP / Cu composite coating is as follows :

[0052] 1. The polypropylene powder is ultrasonically cleaned with acetone. After the cleaning is completed, pretreatments of degreasing, coarsening, sensitization, and activation are carried out in sequence, and then the pretreated polypropylene powder is chemically in the electroless copper plating bath. For copper plating, adjust the pH value with NaOH solution during the plating process. After the copper plating is completed, take it out, rinse with deionized water, and dry to obtain PP / Cu composite microspheres;

[0053] 2. Wash the substrate with acetone, hydrochloric acid, and deionized water in sequence, and use 60 mesh brown corundum sand to ...

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Abstract

The invention discloses a metal/polymer composite coating which comprises a substrate and a composite layer on the surface of the substrate. The composite layer comprises, by volume, 5% to 50% of metal and 50% to 95% of a polymer, wherein the metal is copper or nickel, and the polymer is polyethylene or polypropylene or polytetrafluoroethylene or polyimide. The invention further discloses a manufacturing method of the metal/polymer composite coating. The method includes the following steps that metal/polymer composite microspheres are manufactured; the surface of the substrate is subjected to oil removal and roughing treatment; and the manufactured metal/polymer composite microspheres are thermally sprayed, so that a composite layer is manufactured on the treated surface of the substrate, and therefore the metal/polymer composite coating is obtained. The metal/polymer composite coating can be well combined with a base body, stain resistance and corrosion resistance can be effectively achieved, and the metal/polymer composite coating can be applied to outer surfaces of marine industrial parts and other occasions with the stain resistance and corrosion resistance requirements.

Description

Technical field [0001] The invention relates to the technical field of metal and polymer composite coatings, in particular to a metal / polymer composite coating and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of the marine industry, the problem of biofouling and corrosion of marine engineering materials has become the focus of attention in the world. In particular, my country has abundant marine resources. While developing and utilizing marine resources, it is necessary to minimize marine biofouling. Loss caused by damage. Extensive research has been conducted on the corrosion of marine engineering materials at home and abroad, and good results have been achieved through the selection of corrosion-resistant materials, surface coatings, cathodic protection, and application of anticorrosive coatings. Marine biological fouling has great damage to marine engineering materials, reduces the service life of materials, and c...

Claims

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Application Information

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IPC IPC(8): C23C4/04C23C4/12C23C4/129C23C18/32C23C18/38
CPCC23C4/04C23C4/12C23C18/32C23C18/38
Inventor 所新坤贾正梅龚永锋刘奕黄晶陈秀勇李华
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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