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Anti-scratch paint protecting film and preparation method thereof

An anti-scratch and protective film technology, applied in the direction of film/sheet-like adhesives, adhesives, etc., can solve the problems of high plasticizer content, plasticizer precipitation, easy scratches, etc., to improve scratch resistance Performance and water repellency, oil repellency, acid and alkali resistance, reducing hydrolysis and aging, and prolonging service life

Active Publication Date: 2015-06-10
滁州云林数码影像耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The car paint film currently used is PVC film, but the content of plasticizer in PVC film is high, and it is prone to plasticizer precipitation, which affects the performance and service life, while polyurethane film does not have the problem of plasticizer. Moreover, there are various types of polyurethane, and the film prepared by a certain polymerization of polyurethane can meet most of the properties, such as transparency, hardness, tensile strength, etc.
However, polyurethane film also has its limitations, such as easy to scratch, hydrolysis, etc., the existence of these problems affects its protection performance and service life

Method used

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  • Anti-scratch paint protecting film and preparation method thereof
  • Anti-scratch paint protecting film and preparation method thereof
  • Anti-scratch paint protecting film and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] A preparation method for an anti-scratch paint surface protection film, comprising the following steps:

[0038] 1) Synthesis of 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde;

[0039] Mix 3,3,3-trifluoropropanal and NaOH solution with a concentration of 2mol / L, the mass ratio of 3,3,3-trifluoropropanal and NaOH solution is 1:5, react, and the reaction temperature is 40°C , the reaction time is 2h, separated and purified to obtain 3-hydroxyl-2,4-bis(trifluoromethyl)-butyraldehyde, the structural formula is:

[0040]

[0041] 2) Synthesis of dialdehyde containing fluorine silicon;

[0042] The 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde was then combined with 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasiloxane Alkanediol was added to acetone, 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde and 1,1,3,3,5,5,7,7-octamethyl-1,7- The molar ratio of tetrasiloxanediol is 3:1, and the mass ratio of acetone to 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasiloxanediol is 5: 1. Rea...

Embodiment 2

[0053] A preparation method for an anti-scratch paint surface protection film, comprising the following steps:

[0054] 1) Synthesis of 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde;

[0055] Mix 3,3,3-trifluoropropanal and NaOH solution with a concentration of 4mol / L, the mass ratio of 3,3,3-trifluoropropanal and NaOH solution is 1:7, react, and the reaction temperature is 50°C , the reaction time is 3h, separated and purified to obtain 3-hydroxyl-2,4-bis(trifluoromethyl)-butyraldehyde, the structural formula is:

[0056]

[0057] 2) Synthesis of dialdehyde containing fluorine silicon;

[0058] 3-Hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde was then combined with 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasiloxane di Alcohol added to acetone, 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde and 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasilyl The molar ratio of oxanediol is 4:1, the mass ratio of acetone to 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasiloxanediol is 10:1, Reaction, the...

Embodiment 3

[0069] A preparation method for an anti-scratch paint surface protection film, comprising the following steps:

[0070] 1) Synthesis of 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde;

[0071] Mix 3,3,3-trifluoropropanal and NaOH solution with a concentration of 3mol / L, the mass ratio of 3,3,3-trifluoropropanal and NaOH solution is 1:6, react, and the reaction temperature is 45°C , the reaction time is 2.5h, separated and purified to obtain 3-hydroxyl-2,4-bis(trifluoromethyl)-butyraldehyde, the structural formula is:

[0072]

[0073] 2) Synthesis of dialdehyde containing fluorine silicon;

[0074] 3-Hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde was then combined with 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasiloxane di Alcohol added to acetone, 3-hydroxy-2,4-bis(trifluoromethyl)-butyraldehyde and 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasilyl The molar ratio of oxanediol is 3.5:1, and the mass ratio of acetone to 1,1,3,3,5,5,7,7-octamethyl-1,7-tetrasiloxanediol is 8: 1. React...

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Abstract

The invention relates to an anti-scratch paint protecting film and a preparation method thereof. The anti-scratch paint protecting film comprises an anti-scratch polyurethane film, acrylic glue and release paper, wherein the anti-scratch polyurethane film is prepared by performing surface modifying on one surface of a polyurethane film through a surface modifier of the polyurethane film; the modified surface contains a fluorine-silicon-containing chain section; when in use, the modified surface faces the outer side and is directly in contact with air, so that the anti-scratch performance of the polyurethane film can be greatly improved, and meanwhile, the resistance to water, oil, acid and alkaline can be improved, the hydrating and ageing in use can be greatly reduced, the protecting performance can be improved, and as a result, the service life is prolonged.

Description

technical field [0001] The invention relates to a paint surface protection film and a preparation method thereof, in particular to an anti-scratch paint surface protection film and a preparation method thereof. Background technique [0002] Since the birth of automobiles, human pursuit of automobile maintenance has never stopped. In order to keep the car as bright as new, people have thought of many ways, and waxing, which improves the brightness of the paint surface and reduces the damage of the paint surface, was born. In order to pursue a longer-term and effective protection effect, there has been the emergence of sealing glaze and coating technology. But with the development of science and technology, we have more and more requirements for car body maintenance, which should be simpler, more practical, and more fashionable, so the body paint film was born along with the trend. [0003] The car paint film currently used is PVC film, but the content of plasticizer in PVC ...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J133/00C08J7/18C08L75/04
Inventor 葛允林张曙明耿有为
Owner 滁州云林数码影像耗材有限公司