A kind of preparation method of antistatic strong hydrophobic composite film layer

A composite film layer and hydrophobic technology, which is applied in the field of composite materials, can solve the problems of difficult film preparation, poor purity of polytetrafluoroethylene materials, damage to the matrix material, that is, the life of electronic devices, etc., to achieve easy control of thickness, less impurities, Effect that thickness is possible

Active Publication Date: 2020-10-16
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the above method to spray PTFE has the following limitations: (1) The film layer needs a certain thickness, but it is difficult to prepare a film layer less than 1 μm; (2) The sintering step requires a certain temperature, which will damage the matrix material, that is, the electronic device. Life; (3), PTFE material purity is poor

Method used

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  • A kind of preparation method of antistatic strong hydrophobic composite film layer
  • A kind of preparation method of antistatic strong hydrophobic composite film layer

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Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, the composite film layer of the present invention includes a conductive metal layer, grooves and a polytetrafluoroethylene layer.

[0036] A preparation method for an antistatic strong hydrophobic composite film layer, comprising the following steps:

[0037] Step 1. Using the magnetron sputtering coating equipment, the substrate is used as the substrate of the equipment, and Ti is used as the target to perform magnetron sputtering coating, so that the surface of the substrate is coated with a 200nm thick Ti metal layer, and a metallized substrate is obtained. surface material;

[0038] Among them, the power of the magnetron sputtering coating equipment is 200~300W; the internal pressure of the chamber of the magnetron sputtering coating equipment is 0.5~0.8Pa. The electrons collide with the argon atoms under the action of the electric field, and a large amount of argon ions and electron plasma are ionized. Atoms of Ti metal target are depo...

Embodiment 2

[0046] Such as figure 1 As shown, the composite film layer of the present invention includes a metal layer, grooves and a polytetrafluoroethylene layer.

[0047] A preparation method for an antistatic strong hydrophobic composite film layer, comprising the following steps:

[0048] Step 1: Using magnetron sputtering coating equipment to prepare a metallized Al layer, the preparation process is: the power of the magnetron sputtering coating equipment is 200W; the internal pressure of the chamber is 0.5Pa during operation;

[0049] Step 2, using argon ions to bombard the surface of the metal layer, the preparation process is as follows: the process parameters of the IBE equipment are: screen voltage: 500V, screen current: 250mA, cavity Ar gas flow rate: 10sccm; groove depth: 80nm;

[0050] Step 3, using plasma enhanced chemical vapor deposition equipment to prepare Teflon film, the preparation process is as follows: the radio frequency power is 50W, and the upper and lower plat...

Embodiment 3

[0053] Such as figure 1 As shown, the composite film layer of the present invention includes a metal layer, grooves and a polytetrafluoroethylene layer.

[0054] A preparation method for an antistatic strong hydrophobic composite film layer, comprising the following steps:

[0055] Step 1: Use magnetron sputtering coating equipment to prepare a metallized Cu layer. The preparation process is: the power of the magnetron sputtering coating equipment is 280W; the internal pressure of the chamber is 0.8Pa during operation;

[0056] Step 2, using argon ions to bombard the surface of the metal layer, the preparation process is: the process parameters of the IBE equipment are screen voltage: 520V, screen current: 235mA, cavity Ar gas flow rate 12sccm; groove depth is 80nm;

[0057] Step 3, using plasma enhanced chemical vapor deposition equipment to prepare Teflon film, the preparation process is as follows: the radio frequency power is 80W, and the upper and lower plate voltages of...

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Abstract

The invention provides an antistatic and strong-hydrophobicity composite film layer and a preparation method thereof. The composite film layer comprises a conducting metal layer plated on the surfaceof a substrate and a polytetrafluoroethylene layer plated on the surface of the conducting metal layer, wherein the surface of the substrate is metallized to form the conducting metal layer; then theconducting metal layer on the surface of the substrate is roughened so that a groove is formed in the surface of the conducting metal layer; then the polytetrafluoroethylene layer is plated on the roughened conducting metal layer, wherein the surface static electricity aggregation problem of an insulating material is overcome through the conducting metal layer; a polytetrafluoroethylene film layeris prepared by adopting equipment including plasma etching equipment and the like and has the characteristics of strong hydrophobicity and no adsorption of water vapor; the contact angle between water and the surface is not less than 150 degrees and the sliding angle does not exceed 20 degrees.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for preparing an antistatic strong hydrophobic composite film layer. Background technique [0002] In industrial production, some water vapor is easily absorbed on the surface of electrical devices, and static electricity is easily accumulated on the electronic surface. Under the action of these two conditions, electronic devices are easy to break down and cause damage. service life. [0003] PTFE has the characteristics of acid and alkali resistance and various organic solvent resistance. At the same time, it has outstanding excellent comprehensive properties, high temperature resistance, corrosion resistance, non-stick, self-lubricating, excellent dielectric properties, and very low friction. coefficient. Used as engineering plastics, it can be made into PTFE tubes, rods, strips, plates, films, etc. It is generally used in corrosion-resistant pipes, cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/20C23C14/58C23C16/513C23C28/00
CPCC23C14/205C23C14/35C23C14/5873C23C16/513C23C28/00
Inventor 闫焉服高志廷杨文玲王广欣傅山泓吴丹凤
Owner HENAN UNIV OF SCI & TECH
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