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A waterproof and corrosion-resistant protective film and its preparation method

A protective film and corrosion-resistant technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of waterproof and corrosion resistance that cannot meet the requirements of long-term sea transportation, achieve high hardness and toughness, high bonding firmness, and improve corrosion resistance performance effect

Active Publication Date: 2022-04-19
东莞市骏鸿光学材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Some high-grade boards and large electronic equipment need to use protective film to protect their surface during transportation to prevent stains and sharp objects. These high-grade boards and large electronic equipment are often exported by sea, and the transportation environment is often high humidity and high Corrosion, which puts higher requirements on the performance of the protective film. The current protective film is often made of PE material, and its waterproof and corrosion resistance performance is difficult to meet the requirements of long-term sea transportation

Method used

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  • A waterproof and corrosion-resistant protective film and its preparation method
  • A waterproof and corrosion-resistant protective film and its preparation method
  • A waterproof and corrosion-resistant protective film and its preparation method

Examples

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Effect test

Embodiment 1

[0031] A waterproof and corrosion-resistant protective film, comprising a PET base film (Zhejiang Hongyuan, thermoformed blister pack PET film, tensile strength 38.6MPa, elongation at break 33.5%), a first film layer and a second film layer;

[0032] Its preparation method is as follows:

[0033] Add nano-ZnO to N,N-dimethylacetamide, ultrasonically oscillate for 3 hours to obtain a suspension, add palm wax, heat up to 40°C and stir for 25 minutes, then add modified polyimide, modified polyimide The mass ratio of imine, nano-ZnO, and palm wax is 20:5:1. Continue to stir for 1.5 hours and return to room temperature to obtain the first film liquid. Fix the PET base film in a polytetrafluoroethylene mold, and then place the first Pour the film liquid into the PET base film to evenly cover the surface of the PET base film, evaporate the solvent under reduced pressure at 60°C, and take it out after 25 hours to form the first film layer on the PET base film to obtain the first film ...

Embodiment 2

[0037] A waterproof and corrosion-resistant protective film, comprising a PET base film (Zhejiang Hongyuan, thermoformed blister pack PET film, tensile strength 38.6MPa, elongation at break 33.5%), a first film layer and a second film layer;

[0038] Its preparation method is as follows:

[0039] Add nano-ZnO to N,N-dimethylacetamide, ultrasonically oscillate for 2 hours to obtain a suspension, add palm wax, heat up to 50°C and stir for 20 minutes, then add modified polyimide, modified polyimide The mass ratio of imine, nano-ZnO, and palm wax is 30:4:1. Continue to stir for 1 hour and return to room temperature to obtain the first film liquid. Fix the PET base film in a polytetrafluoroethylene mold, and then place the first film Pour the film liquid into the PET base film to evenly cover the surface of the PET base film, evaporate the solvent under reduced pressure at 65°C, take it out after 20 hours, and then form the first film layer on the PET base film to obtain the first ...

Embodiment 3

[0043] A waterproof and corrosion-resistant protective film, comprising a PET base film (Zhejiang Hongyuan, thermoformed blister pack PET film, tensile strength 38.6MPa, elongation at break 33.5%), a first film layer and a second film layer;

[0044] Its preparation method is as follows:

[0045] Add nano-ZnO to N,N-dimethylacetamide, ultrasonically oscillate for 5 hours to obtain a suspension, add palm wax, heat up to 40°C and stir for 30 minutes, then add modified polyimide, modified polyimide The mass ratio of imine, nano-ZnO, and palm wax is 20:6:1. Continue to stir for 1.5 hours and return to room temperature to obtain the first film liquid. Fix the PET base film in a polytetrafluoroethylene mold, and then place the first Pour the film liquid into the PET base film to evenly cover the surface of the PET base film, evaporate the solvent under reduced pressure at 60°C, and take it out after 25 hours to form the first film layer on the PET base film to obtain the first film ...

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Abstract

The invention involves the field of polymer materials, which is specifically a waterproof and corrosion -resistant protective film and its preparation method, including PET base membrane, first membrane layer, and second membrane layer;Compound with nano Zno; the second membrane layer is a water -like water -like hydrophobic layer. The present invention compounds the first and second membrane layers on the PET base membrane to help improve the mechanical performance of the overall protective film.And the contact angle ≥155.9 °, has good hydrophobic and corrosion resistance, can play a good protection effect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a waterproof and corrosion-resistant protective film and a preparation method thereof. Background technique [0002] Some high-grade boards and large electronic equipment need to use protective film to protect their surface during transportation to prevent stains and sharp objects. These high-grade boards and large electronic equipment are often exported by sea, and the transportation environment is often high humidity and high Corrosion, which puts forward higher requirements on the performance of the protective film. The current protective film is often made of PE material, and its waterproof and corrosion resistance performance is difficult to meet the requirements of long-term sea transportation. Contents of the invention [0003] Purpose of the invention: In view of the above technical problems, the present invention provides a waterproof and corrosion-resistant protective...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D183/10C09D5/08C09D7/61C09D1/00C08G77/455C08G73/10C08L67/02
CPCC08J7/0423C09D183/10C09D5/08C09D7/61C09D1/00C08G77/455C08G73/1064C08G73/1067C08J2367/02C08J2483/10C08K2003/2296C08K2201/011C08L91/06C08K3/22
Inventor 唐以峰
Owner 东莞市骏鸿光学材料有限公司