Flame-retardant anti-ultraviolet automotive interior trim part material and production process thereof

Abstract

The invention discloses a flame-retardant anti-ultraviolet automotive interior trim part material and a production process thereof. The flame-retardant anti-ultraviolet automotive interior trim part material is prepared from the following raw materials in parts by weight: 70-90 parts of polycarbonate, 5-15 parts of an ultraviolet light absorber, 5-15 parts of flame-retardant filler, 5-10 parts of a flame-retardant aid, 4-6 parts of a dispersing agent, 3-8 parts of carbon black and 1-2 parts of an antioxidant. According to the invention, the ultraviolet light absorber compound is added, and 2-hydroxy-4-n-octyloxybenzophenone, 4-benzoyloxy-2 and hexamethylphosphoric triamide in the ultraviolet light absorber compound are mixed according to a ratio, so that the performance of the ultraviolet light absorber is improved, and a product can be endowed with excellent anti-aging performance; the light stability and the ageing resistance of the automobile interior trim part are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile interior decoration parts, and specifically relates to a flame retardant and anti-ultraviolet automobile interior decoration part and a production process thereof. Background Art

[0002] When a car is parked outdoors for a long time, the internal dashboard and interior parts are easily aged or softened by ultraviolet rays, and the surface of the interior parts will crack and the interior parts will become loose. In order to solve this problem, a flame retardant and UV-resistant automobile interior part and its production process are provided. Summary of the invention

[0003] In view of this, the technical problem to be solved by the invention is to provide a flame retardant and UV-resistant automotive interior decoration part and its production process. , to solve the problem in the prior art that the dashboard and interior decoration parts inside the car are easily aged or softened by ultraviolet rays.

[0004] In order to solve the above technical problems, the invention discloses a flame retardant and anti-ultraviolet automotive interior material, characterized in that it is composed of the following raw materials in parts by weight: 70-90 parts of polycarbonate, 5-15 parts of ultraviolet absorber, 5-15 parts of flame retardant filler, 5-10 parts of flame retardant additive, 4-6 parts of dispersant, 3-8 parts of carbon black and 1-2 parts of antioxidant.

[0005] Furthermore, the ultraviolet absorber is one or a combination of 2-hydroxy-4-methoxybenzophenone-5-sodium sulfonate, 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide, 4-benzoyloxy-2, triphosphite, and monobenzoic acid resorcinol ester.

[0006] Furthermore, the above-mentioned ultraviolet absorber is a compound of 2-hydroxy-4-octyloxybenzophenone, hexamethylphosphoric acid triamide, and 4-benzoyloxy-2, and the weight ratio of the compound is (6-8): (0.1-1): (0.5-2).

[0007] Furthermore, the flame retardant auxiliary agent is melamine cyanurate.

[0008] Furthermore, the flame retardant filler is a compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide.

[0009] Furthermore, the flame retardant filler is a composite of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide in a weight ratio of (4-6): (0.5-2): (2-5).

[0010] A production process for flame-retardant and UV-resistant automotive interior decoration parts, characterized by comprising the following steps: A. Place 70-90 parts of polycarbonate, 5-15 parts of ultraviolet absorber, 5-15 parts of flame retardant filler, 5-10 parts of flame retardant additive, 4-6 parts of dispersant, 3-8 parts of carbon black and 1-2 parts of antioxidant in a mixer and mix well to obtain a mixture; B. Put the mixed material into the hopper of a twin-screw extruder and extrude it into granules to obtain the product.

[0011] Furthermore, in the above step B, the screw diameter of the twin-screw extruder is 40-50 mm, the mixing and melting temperature is set as follows: 185-195°C in the first section, 195-205°C in the second section, 200-210°C in the third section, 205-215°C in the fourth section, 200-210°C in the fifth section, the melt temperature is 205-215°C, the head temperature is 200-210°C, and the screw speed is 100-300 rpm.

[0012] Compared with the prior art, the present application can obtain the following technical effects: The invention adds an ultraviolet absorber compound. The 2-hydroxy-4-n-octyloxybenzophenone in the ultraviolet absorber compound can strongly absorb ultraviolet rays with a wavelength of 240 to 340 nm, can be used for various plastics, has good compatibility with polycarbonate, and has low volatility. The 4-benzoyloxy-2-benzoyl can effectively capture active free radicals generated by polymer materials under the action of ultraviolet rays, thereby exerting a light stabilizing effect. The light resistance of the product is several times that of general ultraviolet absorbers. Hexamethylphosphoric triamide can give the product excellent anti-aging performance. The three are mixed in a certain proportion to improve the performance of the ultraviolet absorber, thereby improving the light stability and anti-aging performance of automobile interior decoration parts.

[0013] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. DETAILED DESCRIPTION

[0014] The following will explain the implementation methods of the present application in detail with reference to examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Example 1

[0015] A flame retardant and anti-ultraviolet automobile interior decoration material is composed of the following raw materials in parts by weight: 80 parts of polycarbonate, 9 parts of ultraviolet absorber, 10 parts of flame retardant filler, 6 parts of flame retardant auxiliary agent, 4 parts of dispersant, 5 parts of carbon black and 1.5 parts of antioxidant.

[0016] The ultraviolet absorber is one or a combination of 2-hydroxy-4-methoxybenzophenone-5-sodium sulfonate, 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide, 4-benzoyloxy-2, triphosphite, and monobenzoic acid resorcinol ester.

[0017] The ultraviolet absorber is a compound of 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide and 4-benzoyloxy-2, and the weight ratio of the compound is 7:1:2.

[0018] The flame retardant additive is melamine cyanurate.

[0019] The flame retardant filler is a compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide, and the weight ratio of the flame retardant filler to the compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide is 5:1:4.

[0020] A production process for flame-retardant and UV-resistant automotive interior decoration parts, characterized by comprising the following steps: A. Place 80 parts of polycarbonate, 9 parts of ultraviolet absorber, 10 parts of flame retardant filler, 6 parts of flame retardant additive, 4 parts of dispersant, 5 parts of carbon black and 1.5 parts of antioxidant in a mixer and mix well to obtain a mixture; B. Put the mixed material into the hopper of a twin-screw extruder and extrude it into granules to obtain the product.

[0021] The screw diameter of the twin-screw extruder in step B is 40-50 mm, the mixing and melting temperature is set as follows: 185-195° C. in the first section, 195-205° C. in the second section, 200-210° C. in the third section, 205-215° C. in the fourth section, 200-210° C. in the fifth section, the melt temperature is 205-215° C., the die temperature is 200-210° C., and the screw speed is 100-300 rpm. Example 2

[0022] A flame retardant and anti-ultraviolet automobile interior decoration material is composed of the following raw materials in parts by weight: 90 parts of polycarbonate, 13 parts of ultraviolet absorber, 10 parts of flame retardant filler, 6 parts of flame retardant auxiliary agent, 4 parts of dispersant, 5 parts of carbon black and 1.5 parts of antioxidant.

[0023] The ultraviolet absorber is one or a combination of 2-hydroxy-4-methoxybenzophenone-5-sodium sulfonate, 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide, 4-benzoyloxy-2, triphosphite, and monobenzoic acid resorcinol ester.

[0024] The ultraviolet absorber is a compound of 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide and 4-benzoyloxy-2, and the weight ratio of the compound is 8:1:1.

[0025] The flame retardant additive is melamine cyanurate.

[0026] The flame retardant filler is a compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide, and the weight ratio of the flame retardant filler to the compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide is 5:2:3.

[0027] A production process for flame-retardant and UV-resistant automotive interior decoration parts, characterized by comprising the following steps: A. Place 90 parts of polycarbonate, 13 parts of ultraviolet absorber, 10 parts of flame retardant filler, 6 parts of flame retardant additive, 4 parts of dispersant, 5 parts of carbon black and 1.5 parts of antioxidant in a mixer and mix well to obtain a mixture; B. Put the mixed material into the hopper of a twin-screw extruder and extrude it into granules to obtain the product.

[0028] The screw diameter of the twin-screw extruder in step B is 40-50 mm, the mixing and melting temperature is set as follows: 185-195° C. in the first section, 195-205° C. in the second section, 200-210° C. in the third section, 205-215° C. in the fourth section, 200-210° C. in the fifth section, the melt temperature is 205-215° C., the die temperature is 200-210° C., and the screw speed is 100-300 rpm. Example 3

[0029] A flame retardant and anti-ultraviolet automobile interior material is composed of the following raw materials in parts by weight: 85 parts of polycarbonate, 15 parts of ultraviolet absorber, 10 parts of flame retardant filler, 6 parts of flame retardant auxiliary agent, 4 parts of dispersant, 5 parts of carbon black and 1.5 parts of antioxidant.

[0030] The ultraviolet absorber is one or a combination of 2-hydroxy-4-methoxybenzophenone-5-sodium sulfonate, 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide, 4-benzoyloxy-2, triphosphite, and monobenzoic acid resorcinol ester.

[0031] The ultraviolet absorber is a compound of 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide and 4-benzoyloxy-2, and the weight ratio of the compound is 8:1:1.

[0032] The flame retardant additive is melamine cyanurate.

[0033] The flame retardant filler is a compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide, and the weight ratio of the flame retardant filler to the compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide is 5:2:3.

[0034] A production process for flame-retardant and UV-resistant automotive interior decoration parts, characterized by comprising the following steps: A. Place 85 parts of polycarbonate, 15 parts of ultraviolet absorber, 10 parts of flame retardant filler, 6 parts of flame retardant additive, 4 parts of dispersant, 5 parts of carbon black and 1.5 parts of antioxidant in a mixer and mix well to obtain a mixture; B. Put the mixed material into the hopper of a twin-screw extruder and extrude it into granules to obtain the product.

[0035] The screw diameter of the twin-screw extruder in step B is 40-50 mm, the mixing and melting temperature is set as follows: 185-195° C. in the first section, 195-205° C. in the second section, 200-210° C. in the third section, 205-215° C. in the fourth section, 200-210° C. in the fifth section, the melt temperature is 205-215° C., the die temperature is 200-210° C., and the screw speed is 100-300 rpm.

[0036] Hydroxy-4-n-octyloxybenzophenone can strongly absorb ultraviolet rays with a wavelength of 240~340nm and can be used in various plastics, especially polyethylene, polypropylene, polystyrene, ABS resin, polycarbonate, and polyvinyl chloride. It has good compatibility with resins and low volatility.

[0037] 4-Benzoyloxy-2-nitropropene is a hindered light stabilizer. It has almost no ability to absorb ultraviolet rays, but it can effectively capture the active free radicals generated by polymer materials under the action of ultraviolet rays, thereby exerting the light stabilization effect. The light resistance of this product is several times that of general ultraviolet absorbers. It is non-coloring, non-polluting, and has good heat resistance and processing properties. It has excellent synergistic effects when used in combination with antioxidants and ultraviolet absorbers.

[0038] Hexamethylphosphoric acid triamide can give the product excellent outdoor anti-aging properties.

[0039] Microencapsulated red phosphorus is used as an additive halogen-free flame retardant for adhesives and sealants. It is a halogen-free, high-efficiency, low-smoke, harmless flame retardant with a flame retardant effect of UL94 V-0. It is suitable for adhesives such as epoxy resin, phenolic resin, unsaturated polyester resin, EVA, ABS, butadiene rubber, polycarbonate, etc., and has a better flame retardant effect when used in combination with aluminum hydroxide.

[0040] Magnesium hydroxide is a new type of filling flame retardant. It releases bound water when it is decomposed by heat and absorbs a large amount of latent heat to reduce the surface temperature of the synthetic material it fills in the flame. It has the effect of inhibiting the decomposition of polymers and cooling the generated combustible gas. The decomposed magnesium oxide is a good refractory material and can also help improve the fire resistance of synthetic materials. At the same time, the water vapor it releases can also be used as a smoke suppressant.

[0041] The invention adds an ultraviolet absorber compound. The 2-hydroxy-4-n-octyloxybenzophenone in the ultraviolet absorber compound can strongly absorb ultraviolet rays with a wavelength of 240 to 340 nm, can be used for various plastics, has good compatibility with polycarbonate, and has low volatility. The 4-benzoyloxy-2-benzoyl can effectively capture active free radicals generated by polymer materials under the action of ultraviolet rays, thereby exerting a light stabilizing effect. The light resistance of the product is several times that of general ultraviolet absorbers. Hexamethylphosphoric triamide can give the product excellent anti-aging performance. The three are mixed in a certain proportion to improve the performance of the ultraviolet absorber, thereby improving the light stability and anti-aging performance of automobile interior decoration parts.

[0042] The above description shows and describes several preferred embodiments of the invention, but as mentioned above, it should be understood that the invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and modifications made by those skilled in the art should be within the scope of protection of the claims attached to the invention without departing from the spirit and scope of the invention.

Claims

1. A flame retardant and anti-ultraviolet automotive interior material, characterized in that: The invention is composed of the following raw materials in parts by weight: 70-90 parts of polycarbonate, 5-15 parts of ultraviolet absorber, 5-15 parts of flame retardant filler, 5-10 parts of flame retardant auxiliary agent, 4-6 parts of dispersant, 3-8 parts of carbon black and 1-2 parts of antioxidant.

2. The flame retardant and anti-ultraviolet automotive interior material according to claim 1, characterized in that: The ultraviolet absorber is one or a combination of 2-hydroxy-4-methoxybenzophenone-5-sodium sulfonate, 2-hydroxy-4-n-octyloxybenzophenone, hexamethylphosphoric triamide, 4-benzoyloxy-2, triphosphite, and monobenzoic acid resorcinol ester.

3. The flame retardant and anti-ultraviolet automotive interior material according to claim 2, characterized in that: The ultraviolet absorber is a compound of 2-hydroxy-4-octyloxybenzophenone, hexamethylphosphoric triamide and 4-benzoyloxy-2, and the weight ratio of the compound is (6-8): (0.1-1): (0.5-2).

4. The flame retardant and anti-ultraviolet automotive interior material according to claim 1, characterized in that: The flame retardant auxiliary agent is melamine cyanurate.

5. The flame retardant and anti-ultraviolet automotive interior material according to claim 1, characterized in that: The flame retardant filler is a compound of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide.

6. The flame retardant and anti-ultraviolet automobile interior decoration material according to claim 5, characterized in that: The flame retardant filler is a composite of microencapsulated red phosphorus, aluminum hydroxide and magnesium hydroxide in a weight ratio of (4-6): (0.5-2): (2-5).

7. A production process for flame-retardant and UV-resistant automotive interior parts, characterized in that: The following steps are involved: A. Place 70-90 parts of polycarbonate, 5-15 parts of ultraviolet absorber, 5-15 parts of flame retardant filler, 5-10 parts of flame retardant additive, 4-6 parts of dispersant, 3-8 parts of carbon black and 1-2 parts of antioxidant in a mixer and mix well to obtain a mixture; B. Put the mixed material into the hopper of a twin-screw extruder and extrude it into granules to obtain the product.

8. The production process of flame-retardant and UV-resistant automotive interior decoration parts according to claim 7, characterized in that: The screw diameter of the twin-screw extruder in step B is 40-50 mm, the mixing and melting temperature is set as follows: 185-195° C. in the first section, 195-205° C. in the second section, 200-210° C. in the third section, 205-215° C. in the fourth section, 200-210° C. in the fifth section, the melt temperature is 205-215° C., the die temperature is 200-210° C., and the screw speed is 100-300 rpm.