High-temperature-resistant and light-resistant color master batch material for household appliances and preparation process of color master batch material

Abstract

The invention discloses a high-temperature-resistant and light-resistant color master batch material for household appliances and a preparation process of the color master batch material. Comprising the following steps: 1, mixing carbon black, a silane coupling agent, a dispersing agent and an antioxidant, and carrying out ultrasonic dispersion to obtain a mixed raw material; step 2, adding polyamide resin and a composite additive into the mixed raw material, uniformly stirring, transferring into an internal mixer for mixing, and extruding at 210-250 DEG C through a double-screw extruder to obtain a material strip; 3, the material strips are pulled into a cold water tank to be cooled and formed, finally, the material strips are cut into the needed specification, and the color master batch material is obtained. The preparation method has the beneficial effects that a matrix structure of the composite additive is synthesized by a hydrothermal method, and a stable three-dimensional network is formed by utilizing electrostatic interaction and condensation reaction of polyethyleneimine and the modifier, so that the light stability and high temperature resistance of the material are effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of masterbatch, and specifically relates to a masterbatch material for household appliances with high temperature and light resistance and a preparation process thereof. Background Art

[0002] With the continuous development of the household appliance industry, consumers have higher and higher requirements for the appearance and performance of household appliances. They not only require household appliances to have beautiful colors but also hope that they can maintain stable performance under high temperature and light conditions. As an important colorant, masterbatch has been widely used in the household appliance industry.

[0003] In the prior art, masterbatch has significant defects in high temperature and light resistance. For example, the compatibility between the dispersant and the carrier resin is poor, resulting in uneven dispersion of pigments, which not only affects the coloring effect but also causes stress concentration due to agglomeration, accelerating the thermal oxygen aging process of the material at high temperature. Although some weather-resistant masterbatches use metal complex pigments or coated inorganic pigments, they have problems such as high cost, high processing energy consumption (requiring high-temperature melting), and environmental pollution (containing heavy metals). In terms of the preparation process, the traditional melt blending method has strict requirements for temperature control accuracy, which is prone to cause pigment degradation, while the solvent method has problems of solvent residue and recovery, making it difficult to meet the dual requirements of environmental protection and production efficiency in the household appliance industry.

[0004] Therefore, in order to solve the above problems, the present invention provides a masterbatch material for household appliances with high temperature and light resistance and a preparation process thereof. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a masterbatch material for household appliances with high temperature and light resistance and a preparation process thereof.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A preparation process of a masterbatch material for household appliances with high temperature and light resistance includes the following steps:

[0008] Step 1: Mix carbon black, silane coupling agent, dispersant, and antioxidant, and perform ultrasonic dispersion to obtain a mixed raw material;

[0009] Step 2: Add polyamide resin and composite additive to the mixed raw material, stir evenly, transfer to an internal mixer for mixing, and then extrude through a twin-screw extruder at 210 - 250 °C to obtain a strip;

[0010] Step 3: Pull the strip into a cold water tank for cooling and shaping, and finally cut it into the required specifications to obtain the masterbatch material.

[0011] More preferably, the preparation process of the composite additive is:

[0012] A1: Dissolve magnesium nitrate hexahydrate, aluminum nitrate nonahydrate, urea, and citric acid in ethanol, stir for 30 - 40 min, raise the temperature to 160 - 180 °C, react for 24 - 28 h. After the reaction is completed, naturally cool to room temperature, and obtain a layered matrix through centrifugal separation, washing, and drying.

[0013] A2: Ultrasonically disperse the layered matrix in absolute ethanol, add polyvinylpyrrolidone and polyethyleneimine, stir evenly, and react at 80 - 90 °C for 2 - 3 h to obtain a layered suspension.

[0014] A3: Mix the layered suspension with a modifier, raise the temperature to 80 - 90 °C. After the reaction is completed, filter the product, wash it three times with hot absolute ethanol, and dry the final product at 80 - 100 °C for 12 h to obtain a composite additive.

[0015] In the scheme, through the hydrothermal method, layered double hydroxides were synthesized by regulating with citric acid. It has a three-dimensional spherical flower-like structure, and there are many folded nanosheets distributed on the surface. This structure increases the specific surface area, can achieve multiple reflections, and can effectively improve the light resistance of the material.

[0016] In the scheme, polyethyleneimine undergoes electrostatic interaction with metal ions (such as Mg2+, Al3+) on the surface of the layered matrix through its abundant amino groups, so as to firmly adsorb on the surface of the layered matrix. At the same time, the aldehyde groups contained in the modifier can further undergo a condensation reaction with the amino groups of polyethyleneimine, thereby fixing the modifier on the surface of the layered matrix.

[0017] More optimally, the mass ratio of the layered suspension to the modifier is 10:(3 - 5).

[0018] More optimally, the raw materials of the layered matrix include the following components: by weight, 10 - 12 parts of magnesium nitrate hexahydrate, 7 - 8 parts of aluminum nitrate nonahydrate, 10 - 12 parts of urea, 2 - 3 parts of citric acid, 80 - 90 parts of ethanol;

[0019] The raw materials of the layered suspension include the following components: by weight, 8 - 10 parts of the layered matrix, 100 - 120 parts of absolute ethanol, 1 - 2 parts of polyvinylpyrrolidone, 4 - 5 parts of polyethyleneimine.

[0020] More optimally, the preparation process of the modifier is as follows:

[0021] S1: Under a protective atmosphere, mix phenyl ether, phenyl dichlorophosphine, and aluminum chloride, raise the temperature to 30 - 35 °C, react for 10 - 12 h. After the reaction is completed, add a hydrochloric acid solution for hydrolysis and post-treatment to obtain intermediate A.

[0022] S2: Mix tropolone, potassium carbonate, 18-crown-6, and N,N-dimethylformamide, stir for 30 - 40 min, add intermediate A, raise the temperature to 90 - 100 °C, and react for 9 - 10 h to obtain intermediate B;

[0023] S3: Add p-hydroxybenzaldehyde, triethylamine, and ethyl acetate to a three-necked flask, stir and mix, add intermediate B, raise the temperature to 40 - 50 °C, react for 4 - 5 h, cool to room temperature, then filter, wash, and dry to obtain the modifier.

[0024] In the scheme, phenyl dichlorophosphine acylates the aromatic ring of phenyl ether under the catalysis of aluminum chloride (Lewis acid) to generate intermediate A containing a phosphonate structure. The specific reaction process is as follows:

[0025]

[0026] In the scheme, tropolone (containing a phenolic hydroxyl group) is deprotonated under the action of potassium carbonate to generate a phenoxide anion. The phenoxide anion attacks the phosphorus center in intermediate A to undergo a nucleophilic substitution reaction to obtain intermediate B. Among them, 18-crown-6 complexes with K⁺ to increase the solubility of potassium carbonate in the solvent and improve the reaction efficiency. The specific reaction process is as follows:

[0027]

[0028] In the scheme, the phenolic hydroxyl group contained in p-hydroxybenzaldehyde continues to undergo a nucleophilic reaction with the phosphorus center at the other end of intermediate B to finally obtain the modifier. The specific reaction process is as follows:

[0029]

[0030] More optimally, the raw materials of intermediate A include the following components: by weight, 10 - 15 parts of phenyl ether, 20 - 30 parts of phenyl dichlorophosphine, and 8 - 12 parts of aluminum chloride.

[0031] More optimally, the raw materials of intermediate B include the following components: by weight, 4 - 5 parts of tropolone, 0.1 - 0.2 parts of potassium carbonate, 0.1 - 0.2 parts of 18-crown-6, 80 - 100 parts of N,N-dimethylformamide, and 12 - 15 parts of intermediate A.

[0032] More optimally, the raw materials of the modifier include the following components: by weight, 16 - 20 parts of p-hydroxybenzaldehyde, 1 - 2 parts of triethylamine, 100 - 120 parts of ethyl acetate, and 4 - 5 parts of intermediate B.

[0033] Preferably, the raw materials of the masterbatch material include the following components: 50-60 parts of carbon black, 2-5 parts of silane coupling agent, 3-4 parts of dispersant, 1-2 parts of antioxidant, 100-120 parts of polyamide resin, and 8-10 parts of composite additive by weight.

[0034] Advantages of the present invention:

[0035] In the present invention, the matrix structure of the composite additive is synthesized by a hydrothermal method, and a stable three-dimensional network is formed by the electrostatic interaction and condensation reaction between polyethyleneimine and the modifier, thereby effectively improving the light stability and high temperature resistance of the material. Specifically as follows:

[0036] First: In the solution, the layered double hydroxide matrix synthesized by the hydrothermal method, its three-dimensional spherical flower-like structure and the surface-folded nanosheets significantly increase the specific surface area of the material, forming a dense thermal barrier; this structure can effectively block heat conduction at high temperatures, delay the molecular chain breakage of polyamide resin, and improve the thermal stability of the material; moreover, polyethyleneimine is firmly combined through the strong electrostatic interaction between the amino group and the metal ions (Mg 2+ 、Al 3+ ) on the surface of the matrix; at the same time, the aldehyde group in the modifier and the amino group in polyethyleneimine are further condensed and crosslinked to form a stable three-dimensional network structure, and this synergistic effect significantly enhances the creep resistance and thermal decomposition resistance of the material in a high-temperature environment;

[0037] Second: The matrix of the composite additive is a layered nanostructure, which can significantly reduce the ultraviolet penetration depth and reduce the light energy absorption through multiple light reflections and scatterings, thereby inhibiting the photooxidation reaction; moreover, the phosphonate group and p-hydroxybenzaldehyde derivative introduced in the modifier have high ultraviolet absorption ability, and they capture free radicals through the π-π conjugation effect, block the photodegradation chain reaction, and improve the light resistance performance of the masterbatch. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0039] Example 1: A preparation process of a masterbatch material for household appliances with high temperature and light resistance includes the following steps:

[0040] Step 1: Mix 50 parts of carbon black, 2 parts of silane coupling agent, 3 parts of dispersant and 1 part of antioxidant, and ultrasonically disperse to obtain a mixed raw material;

[0041] Step 2: Add 100 parts of polyamide resin and 8 parts of composite additives to the mixed raw materials, stir evenly, transfer to an internal mixer for mixing, and then extrude through a twin-screw extruder at 210° C. to obtain strips;

[0042] Step 3: Draw the material strips into a cold water tank for cooling and forming, and finally cut them into the required specifications to obtain masterbatch materials;

[0043] Wherein, the preparation process of the composite additive is:

[0044] A1: 10 parts of magnesium nitrate hexahydrate, 7 parts of aluminum nitrate nonahydrate, 10 parts of urea and 2 parts of citric acid were dissolved in 80 parts of ethanol, stirred for 30 minutes, and the temperature was raised to 160°C, and the reaction was carried out for 24 hours. After the reaction was completed, the mixture was naturally cooled to room temperature, centrifuged, washed, and dried to obtain a layered matrix;

[0045] A2: 8 parts of the layered matrix were ultrasonically dispersed in 100 parts of anhydrous ethanol, 1 part of polyvinyl pyrrolidone and 4 parts of polyethyleneimine were added, and the mixture was stirred evenly and reacted at 80°C for 2 hours to obtain a layered suspension;

[0046] A3: The layered suspension was mixed with the modifier, and the temperature was raised to 80°C. After the reaction was completed, the product was filtered, washed three times with hot anhydrous ethanol, and the final product was dried at 80°C for 12 hours to obtain a composite additive; the mass ratio of the layered suspension to the modifier was 10:3;

[0047] Wherein, the preparation process of the modifier is:

[0048] S1: 10 parts of phenyl ether and 20 parts of phenyl dichlorophosphine were mixed, 8 parts of aluminum chloride were added under nitrogen atmosphere, the temperature was raised to 30°C, and the reaction was carried out for 10 hours. After the reaction was completed, hydrochloric acid solution was added for hydrolysis, and post-treatment was performed to obtain intermediate A;

[0049] S2: 4 parts of tropolone, 0.1 parts of potassium carbonate, 0.1 parts of 18-crown ether-6, and 80 parts of N,N-dimethylformamide were mixed, stirred for 30 minutes, 12 parts of intermediate A were added, the temperature was raised to 90°C, and the reaction was carried out for 9 hours to obtain intermediate B;

[0050] S3: Add 16 parts of p-hydroxybenzaldehyde, 1 part of triethylamine and 100 parts of ethyl acetate into a three-necked flask, stir and mix, add 4 parts of intermediate B, increase the temperature to 40°C, react for 4 hours, cool to room temperature, filter, wash and dry to obtain a modifier.

[0051] Embodiment 2: A process for preparing a masterbatch material for household appliances that is resistant to high temperature and light, comprising the following steps:

[0052] Step 1: Mix 60 parts of carbon black, 5 parts of silane coupling agent, 4 parts of dispersant and 2 parts of antioxidant, and perform ultrasonic dispersion to obtain a mixed raw material;

[0053] Step 2: Add 120 parts of polyamide resin and 10 parts of composite additive to the mixed raw material, stir evenly, transfer to a kneader for kneading, and then extrude through a twin-screw extruder at 250 °C to obtain a strip;

[0054] Step 3: Pull the strip into a cold water sink for cooling and shaping, and finally cut it into the required specifications to obtain the masterbatch material;

[0055] Among them, the preparation process of the composite additive is as follows:

[0056] A1: Dissolve 12 parts of magnesium nitrate hexahydrate, 8 parts of aluminum nitrate nonahydrate, 12 parts of urea and 3 parts of citric acid in 90 parts of ethanol, stir for 40 min, raise the temperature to 180 °C, react for 28 h, after the reaction is completed, naturally cool to room temperature, and obtain a layered matrix through centrifugal separation, washing, and drying;

[0057] A2: Ultrasonically disperse 10 parts of the layered matrix in 120 parts of absolute ethanol, add 2 parts of polyvinylpyrrolidone and 5 parts of polyethyleneimine, stir evenly and react at 90 °C for 3 h to obtain a layered suspension;

[0058] A3: Mix the layered suspension with the modifier, raise the temperature to 90 °C, after the reaction is completed, filter the product, wash it three times with hot absolute ethanol, and dry the final product at 100 °C for 12 h to obtain the composite additive; the mass ratio of the layered suspension to the modifier is 10:5;

[0059] Among them, the preparation process of the modifier is as follows:

[0060] S1: Mix 15 parts of phenyl ether and 30 parts of phenyl dichlorophosphine, add 12 parts of aluminum chloride under a nitrogen atmosphere, raise the temperature to 35 °C, react for 12 h, after the reaction ends, add a hydrochloric acid solution for hydrolysis and post-treatment to obtain intermediate A;

[0061] S2: Mix 5 parts of tropone, 0.2 parts of potassium carbonate, 0.2 parts of 18-crown-6, and 100 parts of N,N-dimethylformamide, stir for 40 min, add 15 parts of intermediate A, raise the temperature to 100 °C, and react for 10 h to obtain intermediate B;

[0062] S3: Add 20 parts of p-hydroxybenzaldehyde, 2 parts of triethylamine and 120 parts of ethyl acetate to a three-necked flask, stir and mix, add 5 parts of intermediate B, raise the temperature to 50 °C, react for 5 h, cool to room temperature, filter, wash, and dry to obtain the modifier.

[0063] Example 3: A preparation process of a color masterbatch material for household appliances with high temperature and light resistance, comprising the following steps:

[0064] Step 1: Mix 55 parts of carbon black, 3.5 parts of silane coupling agent, 3.5 parts of dispersant and 1.5 parts of antioxidant, and perform ultrasonic dispersion to obtain a mixed raw material;

[0065] Step 2: Add 110 parts of polyamide resin and 9 parts of composite additive to the mixed raw material, stir evenly, transfer to an internal mixer for mixing, and then extrude at 230 °C through a twin-screw extruder to obtain a strip;

[0066] Step 3: Draw the strip into a cold water sink for cooling and shaping, and finally cut it into the required specifications to obtain the color masterbatch material;

[0067] Among them, the preparation process of the composite additive is as follows:

[0068] A1: Dissolve 11 parts of magnesium nitrate hexahydrate, 7.5 parts of aluminum nitrate nonahydrate, 11 parts of urea and 2.5 parts of citric acid in 85 parts of ethanol, stir for 35 min, raise the temperature to 170 °C, react for 26 h, after the reaction is completed, naturally cool to room temperature, and perform centrifugal separation, washing, and drying to obtain a layered matrix;

[0069] A2: Ultrasonically disperse 9 parts of the layered matrix in 110 parts of absolute ethanol, add 1.5 parts of polyvinylpyrrolidone and 4.5 parts of polyethyleneimine, stir evenly and react at 85 °C for 2.5 h to obtain a layered suspension;

[0070] A3: Mix the layered suspension with the modifier, raise the temperature to 85 °C, after the reaction is completed, filter the product, wash it three times with hot absolute ethanol, and dry the final product at 90 °C for 12 h to obtain the composite additive; the mass ratio of the layered suspension to the modifier is 10:4;

[0071] Among them, the preparation process of the modifier is as follows:

[0072] S1: Mix 12 parts of phenyl ether and 25 parts of phenyl dichlorophosphine, add 10 parts of aluminum chloride under a nitrogen atmosphere, raise the temperature to 35 °C, react for 11 h, after the reaction ends, add a hydrochloric acid solution for hydrolysis and post-treatment to obtain intermediate A;

[0073] S2: Mix 4.5 parts of tropolone, 0.15 parts of potassium carbonate, 0.15 parts of 18-crown-6, and 90 parts of N,N-dimethylformamide, stir for 35 min, add 13 parts of intermediate A, raise the temperature to 95 °C, and react for 9.5 h to obtain intermediate B;

[0074] S3: Add 18 parts of 4-hydroxybenzaldehyde, 1.5 parts of triethylamine, and 110 parts of ethyl acetate into a three-necked flask, stir and mix them, add 4.5 parts of intermediate B, raise the temperature to 45 °C, react for 4.5 h, after cooling to room temperature, filter, wash, and dry to obtain the modifier.

[0075] Comparative Example 1: Without adding the composite additive, the rest is the same as in Example 3, specifically as follows:

[0076] Step 1: Mix 55 parts of carbon black, 3.5 parts of silane coupling agent, 3.5 parts of dispersant, and 1.5 parts of antioxidant, and perform ultrasonic dispersion to obtain a mixed raw material;

[0077] Step 2: Add 110 parts of polyamide resin to the mixed raw material, stir evenly, transfer it to an internal mixer for mixing, and then extrude it through a twin-screw extruder at 230 °C to obtain a strip;

[0078] Step 3: Pull the strip into a cold water sink for cooling and shaping, and finally cut it into the required specifications to obtain the masterbatch material.

[0079] Comparative Example 2: The composite additive is only added with the layered matrix, and the rest is the same as in Example 3, specifically as follows:

[0080] Step 1: Mix 55 parts of carbon black, 3.5 parts of silane coupling agent, 3.5 parts of dispersant, and 1.5 parts of antioxidant, and perform ultrasonic dispersion to obtain a mixed raw material;

[0081] Step 2: Add 110 parts of polyamide resin and 9 parts of the composite additive to the mixed raw material, stir evenly, transfer it to an internal mixer for mixing, and then extrude it through a twin-screw extruder at 230 °C to obtain a strip;

[0082] Step 3: Pull the strip into a cold water sink for cooling and shaping, and finally cut it into the required specifications to obtain the masterbatch material;

[0083] Among them, the preparation process of the composite additive is as follows: Dissolve 11 parts of magnesium nitrate hexahydrate, 7.5 parts of aluminum nitrate nonahydrate, 11 parts of urea, and 2.5 parts of citric acid in 85 parts of ethanol, stir for 35 min, raise the temperature to 170 °C, react for 26 h, after the reaction is completed, naturally cool to room temperature, and perform centrifugal separation, washing, and drying to obtain the layered matrix.

[0084] Detection test: (1) Keep the masterbatches obtained in the examples and comparative examples at 500 °C for 5 days, and observe whether there are any changes in appearance; (2) Add the masterbatches obtained in the examples and comparative examples at 4% to linear low-density polyethylene (LDPE), inject color plaques and tensile splines with an injection molding machine, blow films with a blown film machine, simulate sunlight with a xenon lamp, age for 5000 h, and test the retention rates of tensile strength and elongation at break after aging (determined in accordance with the GBT13022 standard); the data obtained are shown in the following table:

[0085]

[0086] Table 1

[0087] Conclusion: The high-temperature and light-resistant masterbatch material prepared by the present invention, through the synergistic effect of the three-dimensional network structure of the composite additive and the layered matrix, has no cracks or fading after being kept at 500 °C for 5 days. However, obvious cracks and fading occur in Comparative Example 1 (without adding the composite additive), and although there is no fading in Comparative Example 2 (only containing the layered matrix), cracks still occur; after aging for 5000 h with a xenon lamp, the retention rate of tensile strength of Example 3 reaches 97.6%, and the retention rate of elongation at break is 98.1%, which are significantly better than those of Comparative Example 1 (70.8%, 72.4%) and Comparative Example 2 (78.6%, 76.8%), indicating that the stable structure formed by the modifier and the layered matrix through electrostatic interaction and condensation reaction effectively inhibits thermal oxygen aging and photo-degradation.

[0088] In the description of the specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0089] The above content is only an example and illustration of the present invention. Those skilled in the art of the present technology can make various modifications or supplements to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined by the claims of the present invention, they should all belong to the protection scope of the present invention.

Claims

1. A preparation process of a color masterbatch material for household appliances resistant to high temperature and light, characterized in that: It includes the following steps: Step 1: Mix carbon black, silane coupling agent, dispersant and antioxidant, and perform ultrasonic dispersion to obtain a mixed raw material; Step 2: Add polyamide resin and composite additive to the mixed raw material, stir evenly, transfer it to an internal mixer for mixing, and then extrude it through a twin-screw extruder at 210 - 250 °C to obtain a strip; Step 3: Pull the strip into a cold water tank for cooling and shaping, and finally cut it into the required specifications to obtain the masterbatch material.

2. The preparation process of a color masterbatch material for household appliances resistant to high temperature and light according to claim 1, characterized in that: The preparation process of the composite additive is as follows: A1: Dissolve magnesium nitrate hexahydrate, aluminum nitrate nonahydrate, urea and citric acid in ethanol, stir for 30 - 40 min, raise the temperature to 160 - 180 °C, react for 24 - 28 h, after the reaction is completed, naturally cool to room temperature, and obtain a layered matrix through centrifugal separation, washing and drying; A2: Ultrasonically disperse the layered matrix in absolute ethanol, add polyvinylpyrrolidone and polyethyleneimine, stir evenly and react at 80 - 90 °C for 2 - 3 h to obtain a layered suspension; A3: Mix the layered suspension with the modifier, raise the temperature to 80 - 90 °C, after the reaction is completed, filter the product, wash it three times with hot absolute ethanol, and dry the final product at 80 - 100 °C for 12 h to obtain the composite additive.

3. The preparation process of a color masterbatch material for household appliances that is resistant to high temperatures and light as claimed in claim 2, characterized in that: The mass ratio of the layered suspension to the modifier is 10:(3 - 5).

4. The preparation process of a color masterbatch material for household appliances resistant to high temperature and light according to claim 2, characterized in that: The raw materials of the layered matrix include the following components: by weight, 10 - 12 parts of magnesium nitrate hexahydrate, 7 - 8 parts of aluminum nitrate nonahydrate, 10 - 12 parts of urea, 2 - 3 parts of citric acid, 80 - 90 parts of ethanol; The raw materials of the layered suspension include the following components: by weight, 8 - 10 parts of layered matrix, 100 - 120 parts of absolute ethanol, 1 - 2 parts of polyvinylpyrrolidone, 4 - 5 parts of polyethyleneimine.

5. The preparation process of a color masterbatch material for household appliances resistant to high temperature and light according to claim 2, characterized in that: The preparation process of the modifier is as follows: S1: Under a protective atmosphere, mix phenyl ether, phenyl dichlorophosphine and aluminum chloride, raise the temperature to 30 - 35 °C, react for 10 - 12 h, after the reaction ends, add hydrochloric acid solution for hydrolysis and post-treatment to obtain intermediate A; S2: Mix tropolone, potassium carbonate, 18-crown-6 and N,N-dimethylformamide, stir for 30 - 40 min, add intermediate A, raise the temperature to 90 - 100 °C, react for 9 - 10 h to obtain intermediate B; S3: Add p-hydroxybenzaldehyde, triethylamine and ethyl acetate to a three-necked flask, stir and mix, add intermediate B, raise the temperature to 40 - 50 °C, react for 4 - 5 h, cool to room temperature, filter, wash and dry to obtain the modifier.

6. The preparation process of a color masterbatch material for household appliances that is resistant to high temperatures and light, as described in claim 5, is characterized in that: The raw materials of intermediate A include the following components: by weight, 10 - 15 parts of phenyl ether, 20 - 30 parts of phenyl dichlorophosphine, 8 - 12 parts of aluminum chloride.

7. The preparation process of a color masterbatch material for household appliances resistant to high temperature and light according to claim 5, characterized in that: The raw materials of intermediate B include the following components: by weight, 4 - 5 parts of tropolone, 0.1 - 0.2 parts of potassium carbonate, 0.1 - 0.2 parts of 18-crown-6, 80 - 100 parts of N,N-dimethylformamide, 12 - 15 parts of intermediate A.

8. The preparation process of a heat-resistant and light-resistant color masterbatch material for household appliances according to claim 5, characterized in that: The modifier raw materials include the following components: by weight, 16-20 parts of p-hydroxybenzaldehyde, 1-2 parts of triethylamine, 100-120 parts of ethyl acetate, and 4-5 parts of intermediate B.

9. The preparation process of a color masterbatch material for household appliances resistant to high temperature and light according to claim 1, characterized in that: The masterbatch material raw materials include the following components: by weight, 50-60 parts of carbon black, 2-5 parts of silane coupling agent, 3-4 parts of dispersant, 1-2 parts of antioxidant, 100-120 parts of polyamide resin, and 8-10 parts of composite additive.

10. A masterbatch material obtained by the preparation process of a heat-resistant and light-resistant masterbatch material for household appliances according to any one of claims 1-9.

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