Weather-resistant ABS dyeing material as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of weather-resistant ABS (Acrylonitrile Butadiene Styrene) dyeing materials, and particularly relates to a weather-resistant ABS dyeing material as well as a preparation method and application thereof. Comprising the following components in parts by weight: 70-95 parts of ABS resin, 0.1-0.6 part of an antioxidant, 0.2-1 part of a weather-resistant agent and 0.1-2 parts of toner, the antioxidant is one or more of an antioxidant 1010, an antioxidant 1076 and an antioxidant 168; the weather-resistant agent is one or more of UV944, UV783, UV770, UV622, UV531, UV329, UV328, UV327 and UV-P (Ultraviolet-P); the toner is one or more of titanium dioxide, EG red, 3G orange and iron oxide red. Compared with the prior art, the ABS dyeing material for the parking air conditioner shell provided by the invention has higher color stability and higher ultraviolet aging resistance, meets the use requirements of the automobile industry on weather-resistant ABS materials, and has a wide application prospect.

Description

Technical Field

[0001] The invention belongs to the technical field of weather-resistant ABS dyeing materials, and in particular relates to a weather-resistant ABS dyeing material and a preparation method and application thereof. Background Art

[0002] Parking air conditioners are devices used to keep the temperature inside a car at a suitable level when the car is parked. However, due to long-term exposure to various harsh environments, the appearance materials of parking air conditioners are easily affected by factors such as ultraviolet rays, high temperature, and humidity, resulting in color fading and surface aging. Therefore, a material with good weather resistance and color stability is needed to solve these problems.

[0003] ABS is a terpolymer composed of acrylonitrile, butadiene and styrene. It has good comprehensive performance, chemical resistance, electrical properties, oil resistance, and surface gloss. It is widely used in different fields such as automobiles, home appliances, and electronic and electrical industries. However, the butadiene in ABS resin contains unsaturated double bonds, which are prone to oxidative degradation under the action of light aging, causing the product to turn yellow and its performance to decline. In the long-term use process, in order to ensure the color and performance stability of the material, the resin must be modified to enhance its weather resistance. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a weather-resistant ABS coloring material and a preparation method and application thereof. When applied to parking air conditioners, the material has excellent weather resistance and color stability, and can maintain good appearance and performance in various harsh environments.

[0005] A weather-resistant ABS dye, comprising, by mass fraction, 70-95 parts of ABS resin, 0.1-0.6 parts of antioxidant, 0.2-1 parts of weather-resistant agent and 0.1-2 parts of color powder;

[0006] The antioxidant is one or a combination of antioxidant 1010, antioxidant 1076 and antioxidant 168;

[0007] The weathering agent is one or a combination of UV944, UV783, UV770, UV622, UV531, UV329, UV328, UV327 and UV-P;

[0008] The color powder is one or more of titanium dioxide, EG red, 3G orange and iron oxide red.

[0009] Preferably, the ABS resin has a melt flow rate of 10 to 30 g / 10 min at 220° C. / 10 kg.

[0010] Preferably, it also includes: 1 to 5 parts of a toughening agent, wherein the toughening agent is one or a combination of high-rubber powder, polyurethane, styrene-based thermoplastic elastomer SEBS, methyl methacrylate, butadiene and styrene terpolymer MBS.

[0011] Preferably, it also includes: 2 to 8 parts of AS resin, wherein the melt flow rate of the AS resin is 30 to 50 g / 10 min at 220° C. / 10 kg; and the toughening agent is ABS high-rubber powder, styrene-based thermoplastic elastomer SEBS, or styrene terpolymer MBS.

[0012] Preferably, it also includes: 2 to 10 parts of inorganic filler and 0.2 to 1 part of processing aid, wherein the inorganic filler is one or more combinations of talc powder, high-purity precipitated barium sulfate, mica powder, calcium carbonate and wollastonite; the processing aid is at least one of calcium stearate, magnesium stearate, zinc stearate, PE wax, PP wax, ABS wax, ethylene bisstearamide, silicone masterbatch, and a compound of zinc stearate and PE wax.

[0013] Preferably, the antioxidant is a combination of antioxidant 1010 and antioxidant 168 in a ratio of 1:1.

[0014] Preferably, the weathering agent is a combination of UV770 and UV-P in a ratio of 3:2.

[0015] Preferably, the toner is red toner.

[0016] The preparation method of the above-mentioned weather-resistant ABS coloring material comprises the following steps:

[0017] S1. Dry the ABS resin at 80-85°C for 3-4 hours, control the moisture content below 0.05%, and set it aside after drying.

[0018] S2. Weigh each material according to the mass ratio and add them into the mixer and mix for 5 to 10 minutes.

[0019] S3. The mixed raw materials are put into a twin-screw extruder with a screw extrusion temperature of 180-220°C. The raw materials are conveyed, plasticized, melted, mixed, extruded, cooled and pelletized by the extruder to obtain a weather-resistant ABS dyeing material.

[0020] The application of the weather-resistant ABS dye prepared by the formula and method of the present application, wherein the weather-resistant ABS dye is applied to the appearance parts of the parking air conditioner, including but not limited to the air inlet, air outlet and control panel.

[0021] Compared with the prior art, the present invention has the following beneficial effects: providing an ABS dyeing material for a parking air conditioner shell, which has higher color stability, especially the degree of color shift toward the blue phase is smaller when placed under light conditions after injection molding, and also has higher resistance to ultraviolet aging, meeting the automotive industry's requirements for the use of weather-resistant ABS materials, and has broad application prospects. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with specific embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0023] A weather-resistant ABS dye, comprising, by mass fraction, 70-95 parts of ABS resin, 0.1-0.6 parts of antioxidant, 0.2-1 parts of weather-resistant agent and 0.1-2 parts of color powder;

[0024] The antioxidant is one or a combination of antioxidant 1010, antioxidant 1076 and antioxidant 168;

[0025] The weathering agent is one or a combination of UV944, UV783, UV770, UV622, UV531, UV329, UV328, UV327 and UV-P;

[0026] The color powder is one or more of titanium dioxide, EG red, 3G orange and iron oxide red.

[0027] In certain embodiments, the ABS resin has a melt flow rate of 10 to 30 g / 10 min at 220° C. / 10 kg.

[0028] In some embodiments, the present invention further comprises: 1 to 5 parts of a toughening agent, wherein the toughening agent is one or a combination of high-rubber powder, polyurethane, styrene-based thermoplastic elastomer SEBS, methyl methacrylate, butadiene and styrene terpolymer MBS.

[0029] In some embodiments, the composition further comprises: 2 to 8 parts of AS resin, wherein the melt flow rate of the AS resin is 30 to 50 g / 10 min at 220° C. / 10 kg; and the toughening agent is ABS high-rubber powder, styrene-based thermoplastic elastomer SEBS, or styrene terpolymer MBS.

[0030] In some embodiments, the present invention further comprises: 2 to 10 parts of inorganic filler and 0.2 to 1 part of processing aid, wherein the inorganic filler is one or more of talc powder, high-purity precipitated barium sulfate, mica powder, calcium carbonate and wollastonite; the processing aid is at least one of calcium stearate, magnesium stearate, zinc stearate, PE wax, PP wax, ABS wax, ethylene bisstearamide, silicone masterbatch, and a compound of zinc stearate and PE wax.

[0031] In certain embodiments, the antioxidant is a combination of antioxidant 1010 and antioxidant 168 in a ratio of 1:1.

[0032] In certain embodiments, the weathering agent is a combination of UV770 and UV-P in a ratio of 3:2.

[0033] In certain embodiments, the toner is red toner.

[0034] The preparation method of the above-mentioned weather-resistant ABS coloring material comprises the following steps:

[0035] S1. Dry the ABS resin at 80-85°C for 3-4 hours, control the moisture content below 0.05%, and set it aside after drying.

[0036] S2. Weigh each material according to the mass ratio and add them into the mixer and mix for 5 to 10 minutes.

[0037] S3. The mixed raw materials are put into a twin-screw extruder with a screw extrusion temperature of 180-220°C. The raw materials are conveyed, plasticized, melted, mixed, extruded, cooled and pelletized by the extruder to obtain a weather-resistant ABS dyeing material.

[0038] The application of the weather-resistant ABS dye prepared by the formula and method of the present application, wherein the weather-resistant ABS dye is applied to the appearance parts of the parking air conditioner, including but not limited to the air inlet, air outlet and control panel.

[0039] Example 1: The components are as follows: 85 parts of ABS resin, 5 parts of AS resin, 2 parts of ABS high-glue powder, 0.2 parts of antioxidant 1010, 0.2 parts of antioxidant 168, 0.3 parts of light stabilizer UV770, 0.2 parts of ultraviolet absorber UV-P, 6 parts of high-purity precipitated barium sulfate, 0.2 parts of processing aid silicone masterbatch, and 1 part of red powder.

[0040] A method for preparing a weather-resistant ABS colorant comprises the following steps: (1) drying ABS at 80-85°C for 3-4 hours, controlling the moisture content to be below 0.05%, and setting aside after drying; (2) weighing ABS resin, AS resin, toughening agent, antioxidant, weathering agent, inorganic filler, color powder, and processing aid according to weight ratio, adding them into a mixer and mixing for 5-10 minutes; (3) putting the fully mixed raw materials into a twin-screw extruder at a screw extrusion temperature of 180-220°C, conveying, plasticizing, melting, mixing, extruding, cooling, pelletizing, drying and packaging by the extruder, and obtaining a weather-resistant ABS colorant.

[0041] Example 2: The components are as follows: 85 parts of ABS resin, 5 parts of AS resin, 2 parts of SEBS, 0.2 parts of antioxidant 1010, 0.2 parts of antioxidant 168, 0.3 parts of UV770, 0.2 parts of UV-P absorber, 6 parts of high-purity precipitated barium sulfate, 0.2 parts of silicone masterbatch, and 1 part of red powder.

[0042] Example 3: The components are as follows: 85 parts of ABS resin, 5 parts of AS resin, 2 parts of MBS, 0.2 parts of antioxidant 1010, 0.2 parts of antioxidant 168, 0.3 parts of UV770, 0.2 parts of UV-P absorber, 6 parts of high-purity precipitated barium sulfate, 0.2 parts of processing aid silicone masterbatch, and 1 part of red powder.

[0043] Example 4: The components are as follows: 85 parts of ABS resin, 5 parts of AS resin, 2 parts of ABS high-glue powder, 0.2 parts of antioxidant 1010, 0.2 parts of antioxidant 168, 0.3 parts of UV770, 0.2 parts of UV-P absorber, 6 parts of high-purity precipitated barium sulfate, 0.2 parts of processing aid silicone masterbatch, and 1 part of titanium dioxide.

[0044] Comparative Example 1: The components are as follows: 85 parts of ABS resin, 5 parts of AS resin, 2 parts of ABS high-glue powder, 0.2 parts of antioxidant 1010, 0.2 parts of antioxidant 168, 6 parts of high-purity precipitated barium sulfate, 0.2 parts of processing aid silicone masterbatch, and 1 part of red powder.

[0045] Comparative Example 2: The components are as follows: 85 parts of ABS resin, 5 parts of AS resin, 2 parts of ABS high-rubber powder, 6 parts of high-purity precipitated barium sulfate, 0.2 parts of processing aid silicone masterbatch, and 1 part of red powder.

[0046] The preparation methods of Examples 2-4 and Comparative Examples 1-2 are carried out with reference to Example 1. The formula summary table of Examples 1-4 and Comparative Examples 1-2 is shown in Table 1.

[0047] The properties of the ABS materials obtained in Examples 1-4 and Comparative Examples 1-2 were tested according to the following test standards:

[0048] The tensile strength is tested according to GB / T1044.2-2022 standard;

[0049] The notched cantilever beam impact strength is tested according to GB / T 1843-2008 standard;

[0050] The weathering test is carried out according to cycle 1 in ISO4892-3 standard. The test time is 168 hours. The weathering performance is evaluated by testing the change of color difference.

[0051] Among them, in the UV aging test, the △E value gradually increases and finally stabilizes. The aging process of plastics is relatively complex. It is affected by the structure of the plastic itself and climatic conditions. Different climatic conditions have different effects on its aging, and the degree of its performance change is different in each period of time. The performance may decline faster in the early stage, then decline slowly, or vice versa.

[0052] The test results are shown in Table 2.

[0053] Table 1 Summary of formulas in Examples 1-4 and Comparative Examples 1-2

[0054]

[0055] Table 2 ABS material performance test results in Examples 1-4 and Comparative Examples 1-2

[0056]

[0057] The present application mainly improves the weather resistance of ABS materials through formula design, while taking into account the mechanical properties of ABS materials to ensure that the performance requirements of automotive parts are met, and finally provides an ABS dyeing material for a parking air conditioner shell, which has higher color stability, especially after injection molding, the color shifts less to a blue phase under light conditions, and also has higher resistance to ultraviolet aging, which meets the automotive industry's requirements for the use of weather-resistant ABS materials and has broad application prospects.

[0058] It can be seen from Examples 1-3 that different toughening agents have an impact on the mechanical and weather resistance of ABS materials. The double bonds generated by butadiene in the ABS molecule are susceptible to oxidative degradation under the action of ultraviolet rays. The toughening agent high rubber powder and MBS also contain easily degradable double bonds. After SEBS is hydrogenated, the unsaturated double bonds are saturated, and the weather resistance is enhanced. Comparing the test results of Example 1 with those of Comparative Example 1, it can be seen that the addition of weathering agents can significantly improve the weather resistance of the material, especially when the weathering agent is a combination of UV770 and UV-P in a ratio of 3:2; comparing Example 1 and Comparative Examples 1-2, it can be seen that the weather resistance of the composite material of the antioxidant and the weathering agent is better; comparing Example 1 with Example 4, it can be seen that the red powder has better weather resistance results than titanium dioxide. The good weather resistance of the ABS material provided in this application is the result of the combined action of multiple factors.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A weather-resistant ABS coloring material, characterized in that: Calculated by mass fraction, it includes: 70-95 parts of ABS resin, 0.1-0.6 parts of antioxidant, 0.2-1 parts of weathering agent and 0.1-2 parts of color powder; The antioxidant is one or a combination of antioxidant 1010, antioxidant 1076 and antioxidant 168; The weathering agent is one or a combination of UV944, UV783, UV770, UV622, UV531, UV329, UV328, UV327 and UV-P; The color powder is one or more of titanium dioxide, EG red, 3G orange and iron oxide red.

2. The weather-resistant ABS coloring material according to claim 1, characterized in that: The ABS resin has a melt flow rate of 10 to 30 g / 10 min at 220° C. / 10 kg.

3. The weather-resistant ABS coloring material according to claim 2, characterized in that: Also includes: 1 to 5 parts of toughening agent, wherein the toughening agent is one or a combination of high-rubber powder, polyurethane, styrene-based thermoplastic elastomer SEBS, methyl methacrylate, butadiene and styrene terpolymer MBS.

4. The weather-resistant ABS coloring material according to claim 1, characterized in that: Also includes: 2 to 8 parts of AS resin, wherein the melt flow rate of the AS resin is 30 to 50 g / 10 min at 220° C. / 10 kg; the toughening agent is ABS high-rubber powder, styrene-based thermoplastic elastomer SEBS, or styrene terpolymer MBS.

5. The weather-resistant ABS coloring material according to any one of claims 1 to 4, characterized in that: Also includes: 2 to 10 parts of inorganic filler and 0.2 to 1 part of processing aid, wherein the inorganic filler is one or more of talc powder, high-purity precipitated barium sulfate, mica powder, calcium carbonate and wollastonite; the processing aid is at least one of calcium stearate, magnesium stearate, zinc stearate, PE wax, PP wax, ABS wax, ethylene bis stearamide, silicone masterbatch, and a compound of zinc stearate and PE wax.

6. The weather-resistant ABS coloring material according to claim 5, characterized in that: The antioxidant is a combination of antioxidant 1010 and antioxidant 168, with a ratio of 1:

1.

7. The weather-resistant ABS coloring material according to claim 6, characterized in that: The weathering agent is a combination of UV770 and UV-P, with a ratio of 3:

2.

8. The weather-resistant ABS coloring material according to claim 7, characterized in that: The toner is red powder.

9. The method for preparing the weather-resistant ABS coloring material according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Dry the ABS resin at 80-85°C for 3-4 hours, control the moisture content below 0.05%, and set it aside after drying. S2. Weigh each material according to the mass ratio and add them into the mixer and mix for 5 to 10 minutes. S3. The mixed raw materials are put into a twin-screw extruder with a screw extrusion temperature of 180-220°C. The raw materials are conveyed, plasticized, melted, mixed, extruded, cooled and pelletized by the extruder to obtain a weather-resistant ABS dyeing material.

10. Use of the weather-resistant ABS coloring material prepared as claimed in claim 9, characterized in that: The weather-resistant ABS coloring material is applied to the exterior parts of the parking air conditioner, including but not limited to the air inlet, the air outlet and the control panel.

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