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Preparing method for coating with controllable crosslinking degree

A technology of cross-linking degree and coating, applied in the field of ion chemical vapor deposition, can solve the problems of coating swelling and peeling, many linear components of coating, restricting the protection ability of substrates, etc. Effect

Active Publication Date: 2017-06-30
JIANGSU FAVORED NANOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it was found that although the coating with high cross-linking density has better adhesion and solvent resistance, the coating will swell and peel off due to the action of solvents.
This may be due to the fact that most of the fluorocarbon resins used in plasma polymerization are monofunctional fluorocarbon monomers, and the coating formed has more linear components and insufficient crosslinking points, which seriously restricts the coating's ability to protect the substrate.

Method used

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  • Preparing method for coating with controllable crosslinking degree
  • Preparing method for coating with controllable crosslinking degree

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a coating with a controllable degree of crosslinking, characterized in that it mainly includes the following steps:

[0034] (1) Place the base material in the reaction chamber of the plasma chamber, the base material is a solid material, the solid material is an electronic component, and the reaction chamber is continuously evacuated, and the vacuum degree in the reaction chamber is evacuated to 10 Millitorr, feed nitrogen, provide a stable plasma environment, feed nitrogen flow rate of 5 sccm;

[0035] The volume of the plasma chamber is 50 liters, and the temperature of the plasma chamber is controlled at 30°C.

[0036] (2) Introduce monomer vapor, turn on plasma discharge, and carry out chemical vapor deposition;

[0037] Described monomer steam is:

[0038] A mixture of a monofunctional unsaturated fluorocarbon resin and a polyfunctional unsaturated hydrocarbon derivative, the monofunctional unsaturated fluorocarbon resin is 1H, 1H, 2H, 2H-...

Embodiment 2

[0044] The basic process steps of this embodiment are the same as those of Example 1, and the different process parameters are as follows:

[0045] 1. In step (1), the vacuum in the reaction chamber is evacuated to 50 millitorr, and an inert gas is introduced; the base material is a solid material, and the solid material is an electrical component. The volume of the plasma chamber is 200L, and the temperature of the plasma chamber is controlled at 40° C.; the flow rate of the inert gas is 50 sccm, and the inert gas is helium.

[0046] 2, the monomer vapor that feeds in the step (2) is:

[0047] A mixture of a monofunctional unsaturated fluorocarbon resin and a multifunctional unsaturated hydrocarbon derivative, the monofunctional unsaturated fluorocarbon resin is 2-perfluorooctyl ethyl acrylate, and the multifunctional The unsaturated hydrocarbon derivative is diethylene glycol divinyl ether, and the mass percentage of the polyfunctional unsaturated hydrocarbon derivative in th...

Embodiment 3

[0053] The basic process steps of this embodiment are the same as those of Example 1, and the different process parameters are as follows:

[0054] 1. In step (1), the vacuum in the reaction chamber is evacuated to 200 millitorr, and an inert gas is introduced; the base material is a solid material, and the solid material is clothing. The volume of the plasma chamber is 1000L, and the temperature of the plasma chamber is controlled at 60° C.; the flow rate of the inert gas is 300 sccm, and the inert gas is argon.

[0055] 2, the monomer vapor that feeds in the step (2) is:

[0056] A mixture of a monofunctional unsaturated fluorocarbon resin and two polyfunctional unsaturated hydrocarbon derivatives, the monofunctional unsaturated fluorocarbon resin is 2-(perfluorobutyl) ethyl acrylate, the The two kinds of multifunctional unsaturated hydrocarbon derivatives are diethylene glycol divinyl ether and ethylene glycol diacrylate, and the mass percentage of multifunctional unsatura...

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Abstract

The invention discloses a preparing method for a coating with the controllable crosslinking degree, and belongs to the technical field of plasma chemical vapor deposition. The method mainly comprises the following steps that firstly, a base material is placed in a reaction cavity of a plasma chamber, the reaction cavity is continuously subjected to vacuum pumping, the vacuum degree in the reaction cavity reaches 10-200 millitorrs through pumping, the reaction cavity is inflated with inert gases or nitrogen, and a stable plasma environment is provided; then, the reaction cavity is inflated with monomer steam, plasma discharge is started, and chemical vapor deposition is conducted; and discharge is ended, a plasma power source is turned off, inflation of the monomer steam is stopped, vacuum pumping is continuously conducted, and after the vacuum degree of the reaction cavity is kept to range from 10 millitorrs to 200 millitorrs for 1-5 min, inflation of the atmosphere is conducted to one atmospheric pressure, and then the base material is taken out. According to the preparing method, through introduction of polyfunctionality monomer, a dense net-shaped structure is formed by the coating, the material is endowed with good physical and chemical durability, and meanwhile the material can be endowed with excellent waterproof and oil preventing functions; and the binding force and the mechanical strength are improved through combination of the base material and monomer active points.

Description

technical field [0001] The invention belongs to the technical field of plasma chemical vapor deposition, and in particular relates to a preparation method of a coating with a controllable crosslinking degree. Background technique [0002] Plasma chemical vapor deposition is a technology that uses plasma to activate reactive gases to promote chemical reactions on the surface of the substrate or in the space near the surface to form a solid film. Compared with other coating preparation methods, plasma coating technology has the following advantages: (1) dry process, the film produced is uniform without pinholes; (2) coating preparation temperature is low, and can be carried out at room temperature, effectively avoiding temperature damage to sensitive devices; (3) plasma technology can prepare not only micron-scale coatings but also ultra-thin nano-scale coatings; (4) solvent resistance, chemical corrosion resistance, and The chemical and physical properties such as heat resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/517C09D4/00C09D4/02
CPCC09D4/00C23C16/517
Inventor 宗坚
Owner JIANGSU FAVORED NANOTECHNOLOGY CO LTD
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