A spray-free color-changing PMMA / ASA alloy material and its preparation method and application

Abstract

The present invention belongs to advanced material technology, and relates to a plastic alloy, specifically a spray-free phantom color-changing PMMA / ASA alloy material, a preparation method thereof, and an application in automobile rearview mirrors. The raw materials including AS resin, PMMA resin, ASA rubber powder, color-changing pearlescent powder, color powder, scratch-resistant agent, dispersant, antioxidant, and weathering agent are melted and mixed to obtain a spray-free phantom color-changing PMMA / ASA alloy material. Existing spray-free alloys cannot present a phantom color effect. The present invention discloses a phantom color highly scratch-resistant modified PMMA+ASA resin. The key technology lies in the selection and proportioning scheme of rubber, resin, phantom color pearlescent powder, scratch-resistant agent, processing aid, etc. The present invention proposes a PMMA / ASA alloy material that forms different colors when viewed from different angles. It does not need to be sprayed, can be directly injection molded, and can achieve a colorful appearance effect without spraying, thereby reducing costs, being environmentally friendly, simplifying the production process, and improving the product yield rate. It has a very broad application prospect and good use value.

Description

Technical Field

[0001] The invention belongs to advanced material technology and relates to a plastic alloy, specifically a spray-free phantom color-changing PMMA / ASA alloy material and a preparation method thereof and application in automobile rearview mirrors. Background Art

[0002] ASA resin is a ternary graft copolymer of acrylonitrile (A), styrene (S) and acrylate (A) (also known as AAS). Compared with ABS, its biggest advantage is that there are no unsaturated carbon-carbon bonds in the molecular chain structure. Therefore, this material has excellent weather resistance (about 10 times higher than ABS), and has similar mechanical properties, processing properties, electrical insulation and good colorability to ABS. It is widely used in electronic appliances, automotive industry, outdoor products, nail decoration and other fields. Nowadays, people's aesthetic sense has improved, and their pursuit of different colors is different. The expectations for the appearance quality of automobiles and the durability of parts continue to rise. The existing technology uses an automobile part painting group device to achieve different colors. CN118925981A discloses an automobile part painting group device and a method of using it. The raw materials of different colors can be mixed, and the paint color can be adjusted in real time. The paint mixed by the mixing component is sprayed on the automobile parts that need to be painted, so as to paint the automobile parts. The adjustment component can cooperate with the feeding component to put the required paint into the mixing component in turn, so that the mixing component can mix the paints of different colors in real time, thereby improving the flexibility of spraying the paint.

[0003] Spraying has obvious defects and is gradually replaced by spray-free injection molding materials. CN114316814A discloses a packaging film with a color gradient effect and a preparation method thereof. The pigment used in the method comprises at least two masterbatches or color powders, and the masterbatches comprise resins with different melting points and melt indices and color powders with different concentrations, so as to obtain a packaging film with a color gradient effect. Although the invention can obtain a packaging film with a color gradient, the color cannot change with the viewing angle, and because it uses at least two masterbatches or color powders, the preparation process is complicated and the appearance of the component will be greatly affected after aging and fading. CN103756238A puts ABS, PMMA, aramid fiber, pearl powder, UV absorber UV-234, di(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, antioxidant, lubricant and compatibilizer into a high-speed mixer for high-speed stirring. After uniform mixing, the mixture is melt-extruded and granulated through a twin-screw extruder to obtain a reinforced ABS / PMMA alloy material. However, the alloy cannot be used as a high-gloss material, has no iridescent effect, and cannot change color with viewing angles. Summary of the invention

[0004] Existing spray-free alloys cannot present a magical effect. The present invention discloses a magical and highly scratch-resistant modified PMMA+ASA resin. The key technology lies in the selection and proportioning of rubber, resin, magical pearlescent powder, scratch-resistant agent, processing aid, etc. The present invention proposes a PMMA / ASA alloy material that forms different colors when viewed from different angles. It does not require spraying treatment, can be directly injection molded, and can achieve a colorful appearance without spraying, thereby reducing costs, being environmentally friendly, simplifying the production process, and improving the product yield. It has a very broad application prospect and good use value.

[0005] The present invention adopts the following technical scheme.

[0006] A spray-free color-changing PMMA / ASA alloy material, the preparation raw materials of which include AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent.

[0007] The invention discloses a method for preparing the above-mentioned spray-free phantom color-changing PMMA / ASA alloy material, comprising melt-mixing preparation raw materials including AS resin, PMMA resin, ASA rubber powder, color-changing pearlescent powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent to obtain the spray-free phantom color-changing PMMA / ASA alloy material.

[0008] In the present invention, the raw materials for preparing the spray-free phantom color-changing PMMA / ASA alloy material are composed of AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent.

[0009] In the present invention, AS resin: acrylonitrile-styrene copolymer, melt index is 20-50 g / 10min, unnotched impact strength is 20kJ / m 2 above.

[0010] In the present invention, PMMA resin is polymethyl methacrylate, and its melt index is 5-20 g / 10min.

[0011] In the present invention, the ASA rubber powder comprises butyl acrylate, methyl methacrylate, acrylonitrile and styrene core-shell copolymer, and the content of butyl acrylate is 40%-70%.

[0012] In the present invention, the particle size of the color-changing pearlescent powder is 80 μm-100 μm.

[0013] In the present invention, the toner is a carrier-free toner.

[0014] In the present invention, the anti-scratch agent is a polyester-modified organic silicon copolymer, which provides good wear resistance and slippery properties.

[0015] In the present invention, the dispersant is a molecule with a hyperbranched structure, or an organic substance with internal and external lubrication.

[0016] In the present invention, commonly used antioxidants and anti-UV agents constitute processing aids.

[0017] In the present invention, the raw materials are melt-mixed to obtain the spray-free color-changing PMMA / ASA alloy material. Melt-mixing is a conventional method and can be achieved by using an extruder.

[0018] In the present invention, the mass ratio of AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weathering agent is (15-30): (35-55): (20-40): (0.2-0.8): (0.03-0.1): (1-3): (0.5-1.5): (0.1-1): (0.5-2).

[0019] Preferably, the mass ratio of AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weathering agent is (15-25): (40-50): (25-35): (0.3-0.7): (0.04-0.08): (1-2.5): (0.5-1.5): (0.3-1): (0.5-2).

[0020] Further preferably, the mass ratio of AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant, and weathering agent is (16-23): (42-48): (27-33): (0.3-0.5): (0.04-0.07): (1.5-2.5): (0.8-1.3): (0.4-0.7): (0.7-1.5).

[0021] The invention discloses application of the spray-free phantom color-changing PMMA / ASA alloy material in preparing phantom color materials.

[0022] The invention discloses application of the spray-free color-changing PMMA / ASA alloy material in preparing a spray-free material.

[0023] The invention discloses application of the spray-free color-changing PMMA / ASA alloy material in preparing automobile component materials.

[0024] The invention discloses application of the spray-free phantom color-changing PMMA / ASA alloy material in preparing a spray-free phantom color automobile material.

[0025] A fantasy color material is prepared from the above-mentioned spray-free fantasy color-changing PMMA / ASA alloy material.

[0026] An automobile component is prepared from the above-mentioned spray-free colorful color-changing PMMA / ASA alloy material.

[0027] In the present invention, the automobile component material is preferably an automobile rearview mirror housing.

[0028] The present invention discloses the preparation of a colorful and highly scratch-resistant modified PMMA+ASA resin, and the key technology lies in the selection and proportioning scheme of rubber, resin, colorful pearl powder, scratch-resistant agent, processing aid, etc. The resin composite alloy has good weather resistance and colorability, and can be dyed into colorful colors without fading, and can be directly processed and injection molded into colorful products without the need for spray painting and electroplating. Therefore, the product of the present invention has excellent optical properties, excellent weather resistance and high gloss, and can be used as an outdoor product, which is one of the directions of high-gloss extrusion products. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 For comparison, the appearance of the pellet injection molded rearview mirror product in group 3 has moderate flow marks; Figure 2 The appearance of the pellet injection molded rearview mirror product of group 1 has slight flow marks; Figure 3 For the appearance of the pellet injection molded rearview mirror product of group 2, no flow marks were observed; Figure 4 The appearance of the pellet injection molded rearview mirror product of group 3 was evaluated, and no flow marks were observed. DETAILED DESCRIPTION

[0030] Spray-free plastics are modified plastics that have special pigments such as metal powder, pearlescent, ceramic powder, etc. with different effects added to them by melt blending, so that the materials have special effects. Compared with spray-coated products, spray-free plastics have simple processes, high yields, lower prices, and are environmentally friendly; however, spray-free products also have some inevitable defects. The addition of special effect pigments in spray-free materials will lead to poor surface quality during processing. CN114316444A discloses a spray-free long glass fiber reinforced polypropylene composite material and a preparation method thereof. The spray-free effect is mainly achieved by hollow glass fibers, and the glass fibers are often sheared, thinned, and deformed due to shearing and other operations during the preparation process, and finally, excellent mechanical properties and ideal spray-free effects cannot be obtained; in particular, existing spray-free alloys cannot present a magical effect. At present, there is no paint-free material that can show different colors when observed from different angles at home and abroad. The existing color-changing materials mainly focus on spraying to achieve this effect. The present invention is a technological innovation. In the selection and compounding of functional additives, it is applied to PMMA / ASA alloy materials, directly extruded and granulated, and injection molded. The molded parts can show different colors when viewed from different angles.

[0031] In the present invention, the iridescent material refers to a material that exhibits colors and shows different colors when viewed from different angles.

[0032] The present invention proposes a PMMA / ASA alloy material that forms different colors when viewed from different angles. The material can be directly injection molded without painting and can achieve a colorful appearance effect without spraying, thereby reducing costs, being environmentally friendly, simplifying the production process, and improving the product yield. The application prospect is very broad and has good use value.

[0033] In the present invention, the raw material formula for preparing the above-mentioned spray-free color-changing PMMA / ASA alloy material is as follows: AS resin balance PMMA resin 35-55% ASA rubber powder 20-40% Color-changing pearlescent powder 0.3-0.8% Color powder 0.03-0.08% Scratch resistant agent 1.5-2.5% Dispersant 0.5-1.5% Antioxidant 0.5-0.7% Weathering agent 0.8-1.2% Preferably, the raw material formula is composed as follows: AS resin balance PMMA resin 40-50% ASA rubber powder 25-35% Color-changing pearlescent powder 0.3-0.5% Color powder 0.05-0.08% Scratch resistant agent 2% Dispersant 0.5-1% Antioxidant 0.6% Weathering agent 1% The mass sum of AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent is 100%.

[0034] The raw materials for preparing the above-mentioned spray-free colorful color-changing PMMA / ASA alloy material are fed into a twin-screw extruder for melt plasticization. After the processes of extrusion, cooling, pelletizing, drying and the like, the spray-free colorful highly scratch-resistant and high-gloss PMMA / ASA alloy material can be obtained.

[0035] Extruder processing temperature: Zones 1 to 5 160-200°C; Zones 6 to 10 200-220°C; Zones 11 to 13 230°C. The screw speed is set at 300-500r / min, and the main feed screw speed is 30-50r / min.

[0036] The following is an explanation of the technical progress of the present invention through specific experiments. The raw materials are existing products, and the specific operation methods and performance tests are conventional techniques.

[0037] The examples and comparative examples are described below.

[0038] AS resin: PN108L100; PMMA resin: SX-7S; ASA rubber powder: A600N; Chameleon pearlescent powder 1, T10-05, particle size is 40-50μm; Chameleon pearlescent powder 2, YZ9902, particle size is 90-100μm; Carrier-free toner: 9095, toner; Scratch resistant agent: SG600A; Dispersant: Wuhan hyperbranched HyPer C100.

[0039] The processing methods of the embodiments and comparative examples are as follows: The raw materials for preparing the above-mentioned spray-free fantasy color-changing PMMA / ASA alloy material are added to a high-speed mixer for conventional mixing and then taken out, and then directly added to a twin-screw extruder for melt plasticization. After extrusion, cooling, pelletizing, drying and other processes, the spray-free fantasy color-changing high-scratch-resistant and high-gloss PMMA / ASA alloy material can be obtained.

[0040] Extruder processing temperature: Zones 1 to 5 160-200°C; Zones 6 to 10 200-220°C; Zones 11 to 13 230°C; screw speed set at 330r / min, main feed screw speed 30r / min.

[0041] The material testing methods are as follows: Melt index: According to ISO 1133, 220℃, 10kg; Impact performance: Under low temperature conditions of 30±2℃, according to standard ISO 179-1eA, the required value is ≥2kj / m 2 ; Cross scratch method: according to GMW 14688 standard, method A, 10N load, scratch head diameter: 1mm, speed: 1000±50mm / min, evaluate the degree of whitening, requirement ⊿L≤1.5; Five-finger scratching method: according to FLTM_BN_108 standard, scratching head: steel ball type, diameter 1mm, scratching speed 100m / s, finger loads are 2N and 7N respectively, evaluate the scratch, damage and whitening level (refer to the table below), requirements: scratch / damage / whitening are all below level 2.

[0042]

[0043] The present invention is described in detail below in conjunction with the embodiments, each portion being 1 Kg.

[0044] Comparison group 1 The preparation process of PMMA / ASA composite material is as follows: 15 parts of AS resin, 30 parts of ASA rubber powder, 52 parts of PMMA resin, 0.4 parts of single pearl powder, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, and 1 part of dispersant are added into a high-speed mixer and mixed for 7 minutes; the uniformly mixed materials are fed into a twin-screw extruder for melt plasticization, extrusion, cooling, and pelletizing, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours to make pearlescent metallic PMMA+ASA alloy pellets.

[0045] Comparison group 2 The preparation process of PMMA / ASA composite material is as follows: 20 parts of AS resin, 30 parts of ASA rubber powder, 45 parts of PMMA resin, 0.4 parts of single pearl powder, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 2 parts of scratch-resistant agent, and 1 part of dispersant are added into a high-speed mixer and mixed for 7 minutes; the uniformly mixed materials are melt-plasticized, extruded, cooled, and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours to make pearlescent metallic color high scratch-resistant PMMA+ASA alloy pellets.

[0046] Comparison group 3 The preparation process of PMMA / ASA composite material is as follows: add 20 parts of AS resin, 30 parts of ASA rubber powder, 45 parts of PMMA resin, 0.4 parts of chameleon pearl powder 1, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 2 parts of scratch-resistant agent and 1 part of dispersant into a high-speed mixer and mix for 7 minutes; the evenly mixed materials are melt-plasticized, extruded, cooled and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours to make colorful and highly scratch-resistant PMMA+ASA alloy pellets.

[0047] Comparison group 4 The preparation process of PMMA / ASA composite material is as follows: add 20 parts of AS resin, 30 parts of ASA rubber powder, 45 parts of PMMA resin, 0.4 parts of chameleon pearl powder 2, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 2 parts of scratch-resistant agent and 1 part of dispersant into a high-speed mixer and mix for 7 minutes; the evenly mixed materials are melt-plasticized, extruded, cooled and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours to make colorful and highly scratch-resistant PMMA+ASA alloy pellets.

[0048] Implementation Group 1 The preparation process of PMMA / ASA composite material is as follows: add 20 parts of AS resin, 30 parts of ASA rubber powder, 44.94 parts of PMMA resin, 0.4 parts of chameleon pearlescent powder 1, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 0.06 parts of carrier-free color powder, 2 parts of scratch-resistant agent, and 1 part of dispersant into a high-speed mixer and mix for 7 minutes; the evenly mixed material is melt-plasticized, extruded, cooled, and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours to make colorful and highly scratch-resistant PMMA+ASA alloy pellets.

[0049] Implementation Group 2 The preparation process of PMMA / ASA composite material is as follows: add 20 parts of AS resin, 30 parts of ASA rubber powder, 45 parts of PMMA resin, 0.4 parts of chameleon pearlescent powder 2, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 0.06 parts of carrier-free color powder, 2 parts of scratch-resistant agent, and 1 part of dispersant into a high-speed mixer and mix for 7 minutes; the evenly mixed material is melt-plasticized, extruded, cooled, and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours to make colorful and highly scratch-resistant PMMA+ASA alloy pellets.

[0050] Table 1 Material properties and product appearance of the examples and comparative examples

[0051] Note: The rearview mirror parts are made by injection molding machine, with processing temperature of 240-260℃, hot runner temperature of 270℃, mold temperature of 90℃, back pressure of 20, injection speed of 50 mm / s, and visual inspection of product appearance grade: A) severe flow marks; B) obvious flow marks; C) moderate flow marks; D) slight flow marks; E) no flow marks can be observed. According to current production specifications, both D-level and E-level flow marks can be used to prepare automotive parts, but products with slight flow marks are downgraded (for example, they cannot be used for automotive rearview mirrors), which significantly reduces product profits, so production pursues no flow marks.

[0052] Implementation Group 3 The preparation process of PMMA / ASA composite material is as follows: add 20 parts of AS resin, 30 parts of ASA rubber powder, 45 parts of PMMA resin, 0.4 parts of chameleon pearlescent powder 2, 0.3 parts of antioxidant 1076, 0.3 parts of antioxidant 9228, 0.45 parts of anti-UV agent 2020, 0.55 parts of anti-UV agent UV234, 0.06 parts of carrier-free color powder, 2 parts of scratch-resistant agent and 1 part of dispersant into a high-speed mixer and mix for 7 minutes; melt-plasticize, extrude, cool and pelletize the evenly mixed materials through a twin-screw extruder, dry the obtained composite pellets in a drying oven at a temperature of 100°C for 5 hours, and the colorful and highly scratch-resistant PMMA+ASA alloy pellets are made.

[0053] Figure 1 For comparison, the appearance of the injection molded product of pellets from group 3 has visible flow marks; Figure 2 The appearance of the injection-molded product of the granules of implementation group 1 has slight flow marks; Figure 3 For the appearance of the pellet injection molded product of group 2, no flow marks were observed; Figure 4 As for the appearance of the injection-molded product of the pellets of group 3, no flow marks were observed.

[0054] Comparison group 5 The preparation process of PMMA / ASA composite material is as follows: 20 parts of AS resin, 30 parts of ASA rubber powder, 47 parts of PMMA resin, 0.4 parts of chameleon pearlescent powder 2, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 0.06 parts of carrier-free color powder and 1 part of dispersant are added into a high-speed mixer and mixed for 7 minutes; the evenly mixed materials are melt-plasticized, extruded, cooled and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours. The colorful PMMA+ASA alloy pellets are made. In addition to the unqualified scratch and wear resistance, there are slight flow marks on the injection molding appearance.

[0055] Comparison group 6 The preparation process of PMMA / ASA composite material is as follows: 40 parts of ASA rubber powder, 55 parts of PMMA resin, 0.4 parts of chameleon pearlescent powder 2, 0.4 parts of antioxidant 1076, 0.2 parts of antioxidant 9228, 0.5 parts of anti-UV agent 2020, 0.5 parts of anti-UV agent UV234, 0.06 parts of carrier-free color powder, 2 parts of scratch-resistant agent, and 1 part of dispersant are added into a high-speed mixer and mixed for 7 minutes; the evenly mixed materials are melt-plasticized, extruded, cooled, and pelletized through a twin-screw extruder, and the obtained composite pellets are dried in a drying oven at a temperature of 100°C for 5 hours. The fantasy colorful high scratch-resistant PMMA+ASA alloy pellets are made, and there are slight flow marks on the injection molding appearance.

[0056] At present, there is no paint-free material that can show different colors when observed from different angles at home and abroad. The existing color-changing materials mainly focus on spraying to achieve this effect. The present invention is a technological innovation. In the selection and compounding of functional additives, it is applied to PMMA / ASA alloy materials, directly extruded into granules, and injection molded. The molded parts can show different colors when viewed from different angles. The existing spray-free alloys cannot show the effect of fantasy colors. The present invention discloses a fantasy color highly scratch-resistant modified PMMA+ASA resin. The key technology lies in the selection and proportioning scheme of rubber, resin, fantasy color pearlescent powder, scratch-resistant agent, processing aid, etc. The present invention proposes a PMMA / ASA alloy material that forms different colors when viewed from different angles. It does not need to be sprayed, but can be directly injected and sprayed to achieve a colorful appearance effect, thereby reducing costs, being environmentally friendly, simplifying the production process, and improving product yield. It has a very broad application prospect and good use value.

Claims

1. A spray-free color-changing PMMA / ASA alloy material, characterized in that: The preparation raw materials include AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent.

2. The method for preparing the spray-free color-changing PMMA / ASA alloy material according to claim 1, characterized in that: The raw materials including AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent are melt-mixed to obtain a spray-free color-changing PMMA / ASA alloy material.

3. The method for preparing the spray-free color-changing PMMA / ASA alloy material according to claim 2, characterized in that: The melt index of AS resin is 20-50 g / 10min; the melt index of PMMA resin is 5-20 g / 10min; the butyl acrylate content in ASA rubber powder is 40%-70%.

4. The method for preparing the spray-free color-changing PMMA / ASA alloy material according to claim 2, characterized in that: The particle size of the color-changing pearlescent powder is 80 μm-100 μm; the color powder is a carrier-free color powder.

5. The method for preparing the spray-free color-changing PMMA / ASA alloy material according to claim 2, characterized in that: The mass ratio of AS resin, PMMA resin, ASA rubber powder, color-changing pearl powder, color powder, scratch-resistant agent, dispersant, antioxidant and weather-resistant agent is (15-30): (35-55): (20-40): (0.2-0.8): (0.03-0.1): (1-3): (0.5-1.5): (0.1-1): (0.5-2).

6. Use of the spray-free colorful color-changing PMMA / ASA alloy material according to claim 1 in the preparation of colorful materials or spray-free materials.

7. Use of the spray-free color-changing PMMA / ASA alloy material according to claim 1 in the preparation of automotive parts materials.

8. Use of the spray-free colorful color-changing PMMA / ASA alloy material according to claim 1 in the preparation of spray-free colorful automobile materials.

9. A colorful material prepared from the spray-free colorful color-changing PMMA / ASA alloy material according to claim 1.

10. An automobile part, prepared from the spray-free colorful PMMA / ASA alloy material according to claim 1.

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