Military protective coating stabilizer

Abstract

The invention discloses a military protective coating stabilizer, and belongs to the technical field of coatings. The stabilizer comprises the following components in parts by weight: 4-8.2 parts of an anti-settling agent, 1-5 parts of a rheology modifier, 4-8.3 parts of a light stabilizer, 5-9 parts of an antioxidant and 2-6 parts of a heat stabilizer, the anti-settling agent is at least one of an anti-settling agent PE40, calcium ricinoleate and a polymer suspension anti-settling agent XY-510. The stabilizer disclosed by the invention can obviously improve the storage stability and weather resistance of the military camouflage paint and prolong the service life of the military camouflage paint.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and more specifically to a military protective coating stabilizer. Background Art

[0002] Camouflage paint is a kind of military protective paint commonly used for coating on combat uniforms, military tents, camouflage nets, telescopes and other military equipment. Its basic principle is to reduce the difference in scattering or radiation characteristics between the target and the background in the visible light, near infrared, thermal infrared bands, etc., in order to conceal the target or reduce the detectability of the target. Combat uniforms, military tents, camouflage nets and other military equipment are usually used in the field for a long time. In order to make them have good anti-ultraviolet and anti-oxidation weather resistance, stabilizers need to be added to the paint. In addition, stabilizers need to be added to prevent the precipitation of pigments and other particles in the camouflage paint and affect the performance of the paint. At present, the conventional stabilizers added to camouflage paints are still not ideal, especially the long-term storage stability of the paint. Therefore, it is necessary to further optimize and improve the stabilizers of military protective paints. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a military protective coating stabilizer that can significantly improve the storage stability and weather resistance of military camouflage coatings and extend their service life.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A military protective coating stabilizer, the stabilizer is composed of the following components in parts by weight: 4-8.2 parts of an anti-settling agent, 1-5 parts of a rheology modifier, 4-8.3 parts of a light stabilizer, 5-9 parts of an antioxidant, and 2-6 parts of a heat stabilizer; the anti-settling agent is at least one of the anti-settling agent PE40, calcium ricinoleate, and a polymer suspension anti-settling agent XY-510.

[0006] The present invention is further configured such that the anti-settling agent is a composition of the anti-settling agent PE40 and the polymer suspension anti-settling agent XY-510.

[0007] The present invention is further configured that the rheology modifier is HENN 8710 non-ionic rheology modifier.

[0008] The present invention is further configured such that the light stabilizer is a composition of an ionic thiodiene metal complex and an ultraviolet absorber UV6300.

[0009] The present invention is further configured that the structural formula of the ionic thiodiolefin metal complex is , where R=Ph4P.

[0010] The present invention is further configured such that the antioxidant is at least one of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate octadecyl ester, antioxidant BHT, and 2,6-tert-butyl-4-methylphenol.

[0011] The present invention is further configured such that the heat stabilizer is at least one of triphenyl phosphite, pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) and dibutyltin dimaleate.

[0012] The present invention is further configured that the stabilizer is composed of the following components in parts by weight: 6.4 parts of anti-settling agent, 3 parts of rheology modifier, 5 parts of light stabilizer, 5.8 parts of antioxidant, and 3.4 parts of heat stabilizer; the anti-settling agent is a composition of anti-settling agent PE40 and polymer suspension anti-settling agent XY-510, the rheology modifier is HENN 8710 non-ionic rheology modifier; the light stabilizer is a composition of ionic thiodiene metal complex and ultraviolet absorber UV6300.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. At least one of the anti-settling agent PE40, the polymer suspension anti-settling agent XY-510, and calcium ricinoleate is used as a stabilizer anti-settling agent, and HENN 8710 non-ionic rheology modifier is used as a rheology modifier to improve the storage performance of the camouflage paint, and the storage performance of the paint is further improved by adding the anti-settling agent PE40, the polymer suspension anti-settling agent XY-510, and the HENN 8710 non-ionic rheology modifier together.

[0015] 2. A composition of an ionic thiodiene metal complex and an ultraviolet absorber UV6300 is used as a light stabilizer to improve the weather resistance of the camouflage coating, and the weather resistance of the coating is further improved by adding the ionic thiodiene metal complex and the ultraviolet absorber UV6300 together. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0017] The military protective coating stabilizer of the present invention is composed of the following components in parts by weight: 4-8.2 parts of an anti-settling agent, 1-5 parts of a rheology modifier, 4-8.3 parts of a light stabilizer, 5-9 parts of an antioxidant, and 2-6 parts of a heat stabilizer; the anti-settling agent is at least one of an anti-settling agent PE40, calcium ricinoleate, and a polymer suspension anti-settling agent XY-510, and more preferably is a combination of the anti-settling agent PE40 purchased from Shanghai Qiguang Industry and Trade Co., Ltd. and the polymer suspension anti-settling agent XY-510.

[0018] The rheology modifier is preferably HENN 8710 nonionic rheology modifier.

[0019] The light stabilizer is a combination of an ionic thiodiene metal complex and an ultraviolet absorber UV6300 from Xinyi Synthetic Company.

[0020] The structural formula of the ionic thiodiene metal complex is , where R=Ph4P; it was prepared according to the method described in the paper "Design, Preparation and Performance Research of Light Stabilizers" (Wang Yilin, Shenyang Normal University).

[0021] The antioxidant is at least one of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate octadecyl ester, antioxidant BHT, and 2,6-tert-butyl-4-methylphenol.

[0022] The heat stabilizer is at least one of triphenyl phosphite, pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) and dibutyltin dimaleate.

[0023] Example 1

[0024] The stabilizer is composed of the following components in parts by weight: 6.4 parts of an anti-settling agent (3 parts of an anti-settling agent PE40 and 3.4 parts of a polymer suspension anti-settling agent XY-510), 3 parts of a HENN 8710 nonionic rheology modifier, 5 parts of a light stabilizer (2 parts of an ionic thiodiene metal complex and 3 parts of an ultraviolet absorber UV6300), 5.8 parts of an antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate octadecyl ester, and 3.4 parts of a heat stabilizer pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate);

[0025] The structural formula of the ionic thiodiene metal complex is , where R=Ph4P.

[0026] Example 2

[0027] The difference between this embodiment and embodiment 1 is that the mass of the anti-settling agent PE40 is replaced by calcium ricinoleate, and the other components remain unchanged.

[0028] Example 3

[0029] The difference between this embodiment and embodiment 1 is that the mass of the polymer suspension anti-settling agent XY-510 is replaced by calcium ricinoleate, and the other components remain unchanged.

[0030] Example 4

[0031] The difference between this embodiment and embodiment 1 is that the HENN 8710 nonionic rheology modifier is replaced by the polyurethane rheology modifier WL-720, and the other components remain unchanged.

[0032] Comparative Example 1

[0033] The difference between this embodiment and embodiment 1 is that HENN 8710 nonionic rheology modifier is not added.

[0034] Comparative Example 2

[0035] The difference between this embodiment and embodiment 1 is that the mass of the ionic thiodiene metal complex is replaced by the ultraviolet absorber UV6300.

[0036] Comparative Example 3

[0037] The difference between this embodiment and embodiment 1 is that the mass of the ultraviolet absorber UV6300 is replaced by an ionic thiodiene metal complex.

[0038] Comparative Example 4

[0039] The present embodiment differs from the embodiment 1 in that the mass of the ionic thiodiene metal complex is replaced by the ultraviolet absorber UV1130.

[0040] The stabilizers of Examples 1 to 5 were respectively used to prepare polyurethane camouflage coatings (0.3 parts by mass of defoamer BYK-011, 0.3 parts by mass of leveling agent BYK-381, 0.3 parts by mass of wetting agent TEGOWet280, and 0.3 parts by mass of dispersant BYK-190 were added to 25 parts by mass of Bayhydrolxp2470 emulsion, stirred and mixed evenly, and then 8 parts by mass of inorganic green pigment HEUCODUR Green 5G, 3 parts by mass of inorganic yellow pigment HEUCODURYellow255, 2 parts by mass of inorganic black pigment HEUCODUR Black 9-100, and 2 parts by mass of inorganic blue pigment HEUCODUR Blue were added. 545. After 20 parts by mass of distilled water and 10 parts by mass of ethanol are fully stirred, 0.8 parts by mass of the stabilizer of the embodiment of the present invention are added, and the mixture is fully ground and dispersed using a conical mill, and then 8.7 parts by mass of the curing agent Bayhydur XP2547 are added to obtain).

[0041] The storage stability of the polyurethane camouflage coatings prepared by the stabilizers of Examples 1 to 4 and Comparative Example 1 was tested respectively (the method was: the coating was packaged in a metal sealed container and stored at 25°C and 40-60% humidity for 12 months and then the viscosity change rate was tested); the results showed that the viscosity of the polyurethane camouflage coatings prepared by the stabilizers of Examples 1 to 4 and Comparative Example 1 after storage for 12 months was 0.94 times, 1.65 times, 1.91 times, 2.36 times, and 4.42 times the initial viscosity, respectively. The viscosity change rate of the polyurethane camouflage coatings prepared by the stabilizers of Examples 1 to 4 and Comparative Example 1 was tested after being placed at 40°C for 20 days. The results showed that only the viscosity of the polyurethane camouflage coating prepared by the stabilizer of Example 1 did not change. The viscosity change rate of the polyurethane camouflage coatings prepared by the stabilizers of Examples 1 to 4 was tested after being placed at -20°C for 20 days. The results showed that only the viscosity of the polyurethane camouflage coating prepared by the stabilizer of Example 1 did not change. It can be seen that adding anti-settling agent PE40, polymer suspension anti-settling agent XY-510 and HENN 8710 non-ionic rheology modifier together can significantly improve the storage stability of the coating.

[0042] The adhesion and aging resistance of the polyurethane camouflage coatings prepared with the stabilizers of Example 1, Comparative Examples 2-4 were tested respectively. The adhesion of the polyurethane camouflage coatings prepared with the stabilizers of Example 1, Comparative Examples 2-4 was all level 0, and the artificial accelerated aging time was 1582h, 755h, 781h, and 804h, respectively. It can be seen that adding the ionic thiodiolefin metal complex and the ultraviolet absorber UV6300 together can further significantly improve the weather resistance of the coating.

[0043] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A military protective coating stabilizer, characterized in that: The stabilizer is composed of the following components in parts by weight: 4-8.2 parts of an anti-settling agent, 1-5 parts of a rheology modifier, 4-8.3 parts of a light stabilizer, 5-9 parts of an antioxidant, and 2-6 parts of a heat stabilizer; the anti-settling agent is at least one of the anti-settling agent PE40, calcium ricinoleate, and a high molecular suspension anti-settling agent XY-510.

2. A military protective coating stabilizer according to claim 1, characterized in that: The anti-settling agent is a composition of anti-settling agent PE40 and high molecular suspension anti-settling agent XY-510.

3. A military protective coating stabilizer according to claim 1, characterized in that: The rheology modifier is HENN 8710 nonionic rheology modifier.

4. A military protective coating stabilizer according to claim 1, characterized in that: The light stabilizer is a composition of an ionic thiodiene metal complex and an ultraviolet absorber UV6300.

5. A military protective coating stabilizer according to claim 4, characterized in that: The structural formula of the ionic thiodiene metal complex is , where R=Ph4P.

6. A military protective coating stabilizer according to claim 1, characterized in that: The antioxidant is at least one of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate octadecyl ester, antioxidant BHT, and 2,6-tert-butyl-4-methylphenol.

7. A military protective coating stabilizer according to claim 1, characterized in that: The heat stabilizer is at least one of triphenyl phosphite, pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) and dibutyltin dimaleate.

8. A military protective coating stabilizer according to claim 1, characterized in that: The stabilizer is composed of the following components in parts by weight: 6.4 parts of an anti-settling agent, 3 parts of a rheology modifier, 5 parts of a light stabilizer, 5.8 parts of an antioxidant, and 3.4 parts of a heat stabilizer; the anti-settling agent is a composition of an anti-settling agent PE40 and a high molecular suspension anti-settling agent XY-510, the rheology modifier is a HENN 8710 non-ionic rheology modifier; and the light stabilizer is a composition of an ionic thiodiene metal complex and an ultraviolet absorber UV6300.

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