Temperature-resistant coating for direct plating paper

Abstract

The invention discloses a temperature-resistant coating for direct plating paper. The temperature-resistant coating comprises the following components in percentage by weight: 20-30% of vinyl resin; 2%-5% of a fluorosilane coupling agent; 5%-10% of nano aluminum oxide; 10%-20% of silicate filler; 15%-25% of polyurethane resin; 1%-3% of an anti-aging agent; and 15%-25% of a solvent. Tests show that the coating still keeps good adhesive force and has no obvious fading in a high-temperature (200 DEG C) environment, and the wear resistance and the water resistance of the coating are superior to those of products in the prior art. And the coating has excellent temperature resistance: in a high-temperature environment, the coating is kept stable and does not fade or deform. The adhesive force between the coating and a base material is enhanced, and the wear resistance and impact resistance of the coating are improved. The anti-aging agent is added, so that the service life of the coating is prolonged, and the coating is suitable for a long-time high-temperature working environment.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to a temperature-resistant coating for direct-plated paper. Background Art

[0002] Direct-plated paper is a substrate commonly used in electronic products, such as PCB (printed circuit board) manufacturing. Traditional direct-plated paper is prone to deformation, fading or performance degradation in high temperature environments, so its application in high temperature environments is limited. Existing direct-plated paper coatings have certain deficiencies in temperature resistance and adhesion. It is urgent to develop a new type of temperature-resistant coating to improve the performance and application range of direct-plated paper. Summary of the invention

[0003] The purpose of the present invention is to provide a coating for direct-plated paper with excellent temperature resistance, to solve the problem of poor temperature resistance in the prior art, and to enhance the stability and service life of direct-plated paper in a high temperature environment.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A heat-resistant coating for direct-plated paper, comprising the following components in percentage by weight:

[0006] Vinyl resin 20%-30%;

[0007] Fluorosilane coupling agent 2%-5%;

[0008] Nano-alumina 5%-10%;

[0009] Silicate filler 10%-20%;

[0010] Polyurethane resin 15%-25%;

[0011] Anti-aging agent 1%-3%;

[0012] Solvent 15%-25%.

[0013] The solvent is ethyl acetate.

[0014] The functions of the above raw materials are as follows:

[0015] Vinyl resin: used as base resin, with good high temperature resistance and chemical stability.

[0016] Fluorosilane coupling agent: Improves the temperature resistance and adhesion of the coating, and enhances the water resistance and UV resistance of the coating.

[0017] Nano-alumina: acts as a reinforcing agent to improve the hardness and thermal stability of the coating and reduce thermal expansion.

[0018] Silicate filler: Increases the wear resistance and high temperature resistance of the coating, while improving the mechanical strength of the coating.

[0019] Polyurethane resin: Improves the flexibility and wear resistance of the coating, and improves the adhesion and impact resistance of the coating.

[0020] Anti-aging agent: Improve the aging resistance of the coating and extend the service life of the coating.

[0021] A method for preparing a heat-resistant coating for direct-plated paper, specifically comprising:

[0022] Add vinyl resin, fluorosilane coupling agent, nano-alumina and silicate filler into the solvent in proportion and stir evenly.

[0023] Add polyurethane resin and antioxidant and continue stirring until completely dissolved.

[0024] Through grinding and dispersing, ensure that all components are fully mixed to obtain a uniform coating slurry.

[0025] The coating slurry is applied to the surface of the direct-plated paper and cured at a temperature of 150-180° C. for 10-20 minutes.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] After testing, the coating of the present invention still maintains good adhesion and no obvious fading in a high temperature (200°C) environment, and its wear resistance and water resistance are better than those of existing products. Excellent heat resistance: In a high temperature environment, the coating remains stable without fading or deformation. Excellent adhesion: Enhances the adhesion between the coating and the substrate, and improves the wear resistance and impact resistance of the coating. Long-term anti-aging performance: Adding an anti-aging agent prolongs the service life of the coating, making it suitable for long-term high-temperature working environments. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] A heat-resistant coating for direct-plated paper, comprising the following components in percentage by weight:

[0031] Vinyl resin 20%;

[0032] Fluorosilane coupling agent 5%;

[0033] Nano-alumina 10%;

[0034] Silicate filler 20%;

[0035] Polyurethane resin 20%;

[0036] Anti-aging agent 3%;

[0037] Ethyl acetate 22%.

[0038] After testing, the coating of the present invention still maintains good adhesion and no obvious fading under high temperature (200° C.) environment, and its wear resistance and water resistance are better than those of existing products.

[0039] Embodiment 2:

[0040] A heat-resistant coating for direct-plated paper, comprising the following components in percentage by weight:

[0041] Vinyl resin 30%;

[0042] Fluorosilane coupling agent 3%;

[0043] Nano-alumina 8%;

[0044] Silicate filler 15%;

[0045] Polyurethane resin 25%;

[0046] Anti-aging agent 1%;

[0047] Ethyl acetate 18%.

[0048] After testing, the coating of the present invention still maintains good adhesion and no obvious fading under high temperature (200° C.) environment, and its wear resistance and water resistance are better than those of existing products.

[0049] Embodiment 3:

[0050] A heat-resistant coating for direct-plated paper, comprising the following components in percentage by weight:

[0051] Vinyl resin 27%;

[0052] Fluorosilane coupling agent 2%;

[0053] Nano-alumina 8%;

[0054] Silicate filler 15%;

[0055] Polyurethane resin 20%;

[0056] Anti-aging agent 3%;

[0057] Ethyl acetate 25%.

[0058] After testing, the coating of the present invention still maintains good adhesion and no obvious fading under high temperature (200° C.) environment, and its wear resistance and water resistance are better than those of existing products.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat-resistant coating for direct-plated paper, characterized in that: The composition includes the following weight percentages: Vinyl resin 20%-30%; Fluorosilane coupling agent 2%-5%; Nano-alumina 5%-10%; Silicate filler 10%-20%; Polyurethane resin 15%-25%; Anti-aging agent 1%-3%; Solvent 15%-25%.

2. A heat-resistant coating for direct-plated paper according to claim 1, characterized in that: The solvent is ethyl acetate.

3. A method for preparing a heat-resistant coating for direct-plated paper, characterized in that: Specifically: Add vinyl resin, fluorosilane coupling agent, nano-alumina and silicate filler to the solvent in proportion and stir evenly; add polyurethane resin and anti-aging agent and continue stirring until completely dissolved; through grinding and dispersing, ensure that all components are fully mixed to obtain a uniform coating slurry.