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Automobile surface protective film and spraying liquid used thereby

A technology for automobile surface and protective film, applied in the field of spraying liquid, can solve the problems of deformed and damaged passengers and drivers, cars with low impact resistance, poor impact resistance of wax molds, etc., and achieves enhanced bonding performance, high damping coefficient, The effect of reducing the degree of cross-linking with formaldehyde

Active Publication Date: 2018-08-14
ANHUI SANLIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of people's life, cars have gradually entered every household. For car lovers, the performance of the car and the decorative performance of the surface are very important. For the existing vehicle surface, it is usually painted after the surface of the car is painted. Wax, the surface protection of the vehicle is achieved through the wax mold, but the impact resistance of the wax mold is poor, and the direct action of the wax mold on the paint film will cause serious damage to the surface of the car after the wax mold is damaged, and it needs to be re-waxed after the wax mold is damaged , is more troublesome, and at the same time, when the vehicle is subjected to a huge impact, the impact resistance of the vehicle is low, causing the car to be deformed and damaged, causing personal damage to the passengers and drivers in the car
[0003] At the same time, the sound insulation performance of vehicles is particularly important. At present, the automobile industry uses sound insulation pads, most of which are made of single-layer felt uniform thickness materials, which can obviously absorb and attenuate noise. However, the installation of sound insulation pads is cumbersome and the process is complicated.

Method used

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  • Automobile surface protective film and spraying liquid used thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Automotive surface protective film, such as figure 1 As shown, it includes sequentially coating a base film 1, a sound insulation film 2, a rigid film 3 and a peelable protective film 4 compounded on the surface of the car;

[0036] The specific forming process of the protective film is as follows:

[0037] (1) First coat a layer of base film on the surface of the car, after the base film is formed and dried, compound a layer of sound-insulating colloid on the surface of the base film, and then air-dry at room temperature;

[0038] (2) After the colloid is air-dried, apply a layer of rigid spraying liquid on the surface of the colloid to obtain a rigid film after air-drying, and simultaneously spray a layer of peelable protective coating on the surface of the rigid film, and air-dry at room temperature to obtain a protective film.

[0039] The preparation and coating process of the sound-insulating colloid are:

[0040] (1) Put 7kg of EVA resin and 1.6kg of PVC resin ...

Embodiment 2

[0047] Wherein the preparation process of the spraying liquid that automobile surface protective film uses among the embodiment 1 is:

[0048] (1) Dissolve 1.1kg of catechol in 1.5kg of water, then heat to 70°C, add 0.94kg of hydroxy silicone oil while stirring, stir and react for 30-50min, then add 0.9kg of formaldehyde solution with a mass fraction of 37%, Adjust the pH of the reaction solution to 12.5 and stir at 70°C for 50-80 minutes;

[0049](2) Then add 0.72 kg of hydroxypropyl cellulose and stir to dissolve, then add 8.6 kg of formaldehyde solution to adjust the pH of the solution to 13, and then stir for 1-2 hours;

[0050] (3) Finally, add 0.143 kg of XC-100TJ hydrophilic nano-titanium dioxide, stir and mix evenly, then add 0.23 kg of formaldehyde solution, heat up to 80 ° C for 3-5 hours, and obtain a spraying liquid;

[0051] (4) Then the spray liquid prepared in step 3 is directly sprayed to the surface of the car through a high-pressure spray gun at 80°C, and th...

Embodiment 3

[0053] Automotive surface protective film, such as figure 1 As shown, it includes sequentially coating a base film 1, a sound insulation film 2, a rigid film 3 and a peelable protective film 4 compounded on the surface of the car;

[0054] The specific forming process of the protective film is as follows:

[0055] (1) First coat a layer of base film on the surface of the car, after the base film is formed and dried, compound a layer of sound-insulating colloid on the surface of the base film, and then air-dry at room temperature;

[0056] (2) After the colloid is air-dried, apply a layer of rigid spraying liquid on the surface of the colloid to obtain a rigid film after air-drying, and simultaneously spray a layer of peelable protective coating on the surface of the rigid film, and air-dry at room temperature to obtain a protective film.

[0057] The preparation and coating process of the sound-insulating colloid are:

[0058] (1) Put 8.5kg of EVA resin and 2.1kg of PVC resi...

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Abstract

The invention discloses automobile surface protective film, comprising base film, soundproof film, rigid film and peelable protective film which are combined sequentially to the surface of an automobile by spraying, wherein the protective film is formed via the specific steps: coating the surface of the automobile with the base film, combining a soundproof colloid layer to the surface of the basefilm after the base film forms and dries, and air-drying at normal temperature; after the colloid air-dries, coating the surface of the colloid with a rigid spraying liquid layer, air-drying to obtainthe rigid film, spraying a peelable protective coating layer to the surface of the rigid film, and air-drying at normal temperature to obtain the protective film. The automobile surface protective film has great soundproof capacity; the rigid film and the peelable protective film provide great impact resistance via double action, and surface scratch can be effectively avoided for the automobile;when the peelable protective film is scratched, further protection can be provided directly via the rigid film, so that the surface of the automobile is never damaged; the scratched peelable protective film can be replaced by direct peeling and can be peeled completely and replaced conveniently.

Description

technical field [0001] The invention belongs to the field of automobile production, and relates to an automobile surface protective film and a spraying liquid used therefor. Background technique [0002] With the development of people's life, cars have gradually entered every household. For car lovers, the performance of the car and the decorative performance of the surface are very important. For the existing vehicle surface, it is usually painted after the surface of the car is painted. Wax, the surface protection of the vehicle is achieved through the wax mold, but the impact resistance of the wax mold is poor, and the direct action of the wax mold on the paint film will cause serious damage to the surface of the car after the wax mold is damaged, and it needs to be re-waxed after the wax mold is damaged , more troublesome, at the same time when being subject to a huge impact, the impact resistance of the vehicle is low, causing the deformation and damage of the car to ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/04
Inventor 张芹潘秀琴檀文君营梦俞文超
Owner ANHUI SANLIAN UNIV
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