Encapsulation repairing agent for outer cover of car lamp

Abstract

The invention discloses a car lamp outer cover packaging repairing agent, and belongs to the technical field of car lamp cover repairing, and the car lamp outer cover packaging repairing agent is prepared from the following raw materials by mass: 70-75% of bifunctional polyurethane resin; 20-25% of a monofunctional monomer; 0.5 to 1.5 percent of an antioxidant; 0.2%-0.8% of an ultraviolet light absorber; and 4-6% of a composite photoinitiator. The car lamp outer cover packaging repairing agent has the advantages of being easy to repair and attractive after being repaired, the curing speed is high, and hole repairing can be conducted.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle lamp cover repair, in particular to a vehicle lamp outer cover packaging repair agent. Background Art

[0002] When a vehicle is slightly scratched, the lamp cover is most likely to be damaged. If the lamp cover is not repaired when it is slightly damaged, dust will easily enter the lamp cover, affecting the appearance. Most original lamps use ultrasonic packaging. If ultrasonic packaging is continued during the repair process, the one-time investment in equipment is large. The current lamp cover repair technology can only repair minor cracks in the lamp cover, but cannot adapt to the repair of holes. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a lamp cover encapsulation repair agent, which has the characteristics of simple repair and beautiful appearance after repair, and has a fast curing speed and can repair holes.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] Provided is a car lamp cover encapsulation repair agent, which is prepared from the following raw materials in parts by mass:

[0006]

[0007] Furthermore, the composite photoinitiator is prepared from the following raw materials in parts by weight: photoinitiator 184 75-85%, photoinitiator TPO 8-12%, and photoinitiator ITX 8-12%.

[0008] Furthermore, it is prepared from the following raw materials in parts by mass: 72% of bifunctional polyurethane resin; 21.5% of monofunctional monomer; 1% of antioxidant; 0.5% of ultraviolet absorber; and 5% of composite photoinitiator.

[0009] Furthermore, the composite photoinitiator is prepared from the following raw materials in parts by weight: photoinitiator 18480%, photoinitiator TPO 10%, and photoinitiator ITX 10%.

[0010] Furthermore, the difunctional polyurethane resin is a difunctional aliphatic polyurethane resin.

[0011] Furthermore, the monofunctional monomer is 4-acryloylmorpholine.

[0012] Furthermore, the antioxidant is antioxidant 1010 or antioxidant 1076.

[0013] Furthermore, the ultraviolet absorber is UV-531.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The headlight cover encapsulation repair agent of the example of the present invention has a simple repair process and a fast curing speed. It can be cured and formed in just 2-3 seconds. It can repair holes and has good light transmittance after repair. It is no different from the original headlight cover and has the characteristics of simple repair and beautiful appearance after repair. DETAILED DESCRIPTION

[0016] The present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0018] Embodiment 1:

[0019] This embodiment provides a lamp cover encapsulation repair agent, the raw materials are composed of: 70% of bifunctional aliphatic polyurethane resin, 25% of ACMO, 0.8% of antioxidant 1010, 0.5% of UV-531, and 3.7% of composite photoinitiator;

[0020] The raw materials of the composite photoinitiator are composed in mass parts as follows: photoinitiator 184 85%, photoinitiator TPO 7%, and photoinitiator ITX 8%.

[0021] The composite photoinitiator of this embodiment is a mixture of three initiators, among which the photoinitiator 184 plays a role of surface drying, and the photoinitiator TPO plays a role of deep curing. The combination of the two can significantly shorten the curing time of the repair agent. Since the repair agent is not only a transparent and colorless repair agent, but sometimes needs to be toned according to the color of the lampshade, the photoinitiator ITX is used. The photoinitiator ITX is a long-wave initiator, which can ensure the curing effect of the repair agent after adding pigments.

[0022] Embodiment 2:

[0023] This embodiment provides a lamp cover encapsulation repair agent, the raw materials are composed of: 74% of bifunctional aliphatic polyurethane resin, 20% of ACMO, 1.5% of antioxidant 1010, 0.2% of UV-531, and 4.3% of composite photoinitiator;

[0024] The raw materials of the composite photoinitiator are composed in mass parts as follows: photoinitiator 184 85%, photoinitiator TPO 7%, and photoinitiator ITX 8%.

[0025] Embodiment three:

[0026] This embodiment provides a lamp cover encapsulation repair agent, the raw materials are composed of: 72% of bifunctional aliphatic polyurethane resin, 21.5% of ACMO, 1% of antioxidant 1076, 0.5% of UV-531, and 5% of composite photoinitiator;

[0027] The raw materials of the composite photoinitiator are composed in parts by mass as follows: 80% of photoinitiator 184, 10% of photoinitiator TPO, and 10% of photoinitiator ITX.

[0028] Comparative Example 1:

[0029] This embodiment provides a lamp cover encapsulation repair agent, the raw materials are composed of: 72% of bifunctional aliphatic polyurethane resin, 21.5% of ACMO, 1% of antioxidant 1076, 0.5% of UV-531, and 5% of composite photoinitiator;

[0030] The raw materials of the composite photoinitiator are composed of 80% of photoinitiator 184 and 20% of photoinitiator TPO in terms of mass fraction.

[0031] The difference between this comparative example and Example 3 is that the composition of the composite photoinitiator is different, and the photoinitiator ITX is not used in this example.

[0032] Comparative Example 2:

[0033] This embodiment provides a lamp cover encapsulation repair agent, the raw materials are composed of: 72% of bifunctional aliphatic polyurethane resin, 21.5% of ACMO, 1% of antioxidant 1076, 0.5% of UV-531, and 5% of composite photoinitiator;

[0034] The raw materials of the composite photoinitiator are composed in parts by mass as follows: 70% of photoinitiator 184, 15% of photoinitiator TPO, and 15% of photoinitiator ITX.

[0035] The difference between this comparative example and Example 3 is that the addition ratio of each raw material of the composite photoinitiator is different.

[0036] Comparative Example 3:

[0037] This embodiment provides a lamp cover encapsulation repair agent, and the mass composition of the raw materials is: 72% of bifunctional aliphatic polyurethane resin, 21.5% of ACMO, 1% of antioxidant 1076, 0.5% of UV-531, and 5% of photoinitiator.

[0038] The raw materials of the composite photoinitiator are composed in parts by mass as follows: 80% of photoinitiator 184, 15% of photoinitiator TPO, and 5% of photoinitiator ITX.

[0039] The difference between this comparative example and Example 3 is that the addition ratio of each raw material of the composite photoinitiator is different.

[0040] Performance Test:

[0041] The hardness, tensile strength and elongation at break were tested using a universal testing machine; the curing time was measured by irradiation with a UV lamp in a fixed wavelength range. The test results are as follows:

[0042] Test items Embodiment 1 Embodiment 2 Embodiment 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Hardness Shore D 78 76 80 77 73 74 Tensile strength MPa 92 90 89 90 85 67 Elongation at break % 422 406 432 420 381 368 Curing time 2.1 2.2 1.8 2.4 7 2

[0043] It can be seen that the composite photoinitiator can significantly shorten the curing time of the repair agent, so that the repair agent can be quickly cured after being applied in large quantities, and is suitable for large-area repairs.

[0044] In addition, the repair agents of Example 3 and Comparative Examples 1-3 were weighed, and the same mass of pigments were added and mixed, and then the refractive index of each repair agent was tested. The test results were: Example 3 2.3, Comparative Example 1 1.2, Comparative Example 2 1.8, and Comparative Example 3 1.4.

[0045] It can be seen from this that the composite photoinitiator of Example 3 can significantly increase the refractive index of the repair agent.

[0046] Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A car lamp cover encapsulation repair agent, characterized in that: It is prepared from the following raw materials in parts by weight:

2. The vehicle lamp cover encapsulation repair agent according to claim 1, characterized in that: The composite photoinitiator is prepared from the following raw materials in parts by mass: 75-85% of photoinitiator 184, 8-12% of photoinitiator TPO, and 8-12% of photoinitiator ITX.

3. The vehicle lamp cover encapsulation repair agent according to claim 1, characterized in that: The invention is prepared from the following raw materials in parts by weight: 72% of bifunctional polyurethane resin; 21.5% of monofunctional monomer; 1% of antioxidant; 0.5% of ultraviolet absorber; and 5% of composite photoinitiator.

4. The vehicle lamp cover encapsulation repair agent according to claim 2, characterized in that: The composite photoinitiator is prepared from the following raw materials in parts by mass: 80% of photoinitiator 184, 10% of photoinitiator TPO, and 10% of photoinitiator ITX.

5. The vehicle lamp cover encapsulation repair agent according to claim 1, characterized in that: The bifunctional polyurethane resin is a bifunctional aliphatic polyurethane resin.

6. The vehicle lamp cover encapsulation repair agent according to claim 1, characterized in that: The monofunctional monomer is 4-acryloylmorpholine.

7. The vehicle lamp cover encapsulation repair agent according to claim 1, characterized in that: The antioxidant is antioxidant 1010 or antioxidant 1076.

8. The vehicle lamp cover encapsulation repair agent according to claim 1, characterized in that: The ultraviolet absorber is UV-531.

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