Long-acting flame-retardant anti-aging additive as well as preparation method and application thereof

By designing a long-acting flame retardant and anti-aging multifunctional additive, the compatibility and antagonism effects of flame retardant and anti-aging additive in polymer materials are solved, and the high performance and long-term use of the material are achieved.

CN119462483AActive Publication Date: 2025-02-18SUQIAN LIANHONG NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202411559972.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-02-18
Estimated Expiration
2044-11-04

AI Technical Summary

Technical Problem

Among existing polymer materials, flame retardants and anti-aging additives have compatibility problems and antagonistic effects, resulting in reduced material performance and shortened service life.

Method used

A long-acting flame retardant anti-aging multifunctional additive was designed to react 4-hydroxy-2,2,6,6-tetramethylpiperidine nitrogen oxide radical with trimethyl (trifluoromethyl)silane , combined with methyl stearate, form an additive with good compatibility and migration resistance.

Benefits of technology

This additive not only improves the flame retardant and anti-aging properties of the material, but also reduces the antagonism risk between different additives, extends the use cycle of the material, and simplifies the formulation design and processing process of the material.

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Abstract

The invention belongs to the technical field of high polymer material auxiliaries, and particularly discloses a long-acting flame-retardant anti-aging auxiliary and a preparation method and application thereof.The preparation method comprises the following steps that firstly, 4-hydroxy-2, 2, 6, 6-tetramethylpiperidine nitroxide free radicals and trimethyl (trifluoromethyl) silane react to obtain 2, 2, 6, 6-tetramethyl-1-trifluoromethoxy-4-piperidinol, then the 2, 2, 6, 6-tetramethyl-1-trifluoromethoxy-4-piperidinol is added into the 2, 2, 6, 6-tetramethyl-1-trifluoromethoxy-4-piperidinol, and the 2, 2, 6, 6-tetramethyl-1-trifluoromethoxy-4-piperidinol is added into the 2, according to the present invention, the molecules of the dual-function integrated auxiliary agent simultaneously contain the efficient flame retardant element fluorine and the free radical capture agent tetramethylpiperidine structure, such that the good flame retardant property can be provided for the material, and the good anti-aging property can be provided for the material, such that the long-acting flame retardant anti-aging multifunctional auxiliary agent can be provided, and the long-acting flame retardant anti-aging multifunctional auxiliary agent can be further provided; the flame-retardant anti-aging material structurally contains an octadecyl long chain, so that the compatibility of the flame-retardant anti-aging material with matrix resin can be increased, the phenomena of easy precipitation and migration of a conventional auxiliary agent are improved, and the problems existing in the development of flame-retardant anti-aging high-performance materials in the prior art are effectively solved. # imgabs0 #
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Description

Technical Field

[0001] The invention belongs to the technical field of polymer material additives, and specifically relates to a functional additive integrating long-term flame retardancy and anti-aging, and a preparation method and application thereof. Background Art

[0002] Polymer materials are widely used in many fields such as building materials, household appliances, automobiles, high-speed rail, and aircraft due to their excellent comprehensive properties. With the development of science and technology and the expansion of industrial application fields, single-function materials can no longer meet the complex and changing environment and application requirements. Especially in the fields of construction, transportation, aerospace, electronics and electrical appliances, higher requirements are placed on the safety, stability and durability of materials.

[0003] The simplest and most effective method is to achieve functional modification of materials by adding different additives. For example, in order to improve the flame retardancy of polymer materials, flame retardants can be introduced into the substrate. According to the relationship between flame retardants and substrates, flame retardants can be divided into additive type and reactive type. At present, the research on flame retardancy of polymer materials is mainly focused on additive flame retardants. Additive flame retardants add flame retardants to the substrate by physical melt blending, thereby giving the substrate flame retardant properties. In order to improve the anti-aging properties of polymer materials, various anti-aging additives are added to the substrate, such as hindered phenol antioxidants and hindered amine light stabilizers. However, most flame retardants and anti-aging additives have compatibility problems with the matrix material, which makes it difficult to disperse, and conventional additives on the market are also prone to migration and precipitation, which affects the material performance and effective use cycle; on the other hand, the simultaneous addition of multiple additives may increase the difficulty of material processing due to changes in the melting index and reduced fluidity, and it is also easy to cause a decrease in the mechanical properties of polymer materials. In addition, it is worth noting that flame retardants and anti-aging agents may have antagonistic effects in polymer materials, that is, some flame retardants may weaken the effectiveness of anti-aging agents, and vice versa, which puts higher requirements on the overall optimization of material properties.

[0004] To solve the above problems, in the research and development of polymer materials, it is necessary to comprehensively consider the compatibility of flame retardants and anti-aging additives and their possible antagonistic effects to ensure the safety and durability of the materials in practical applications. At the same time, the design and development of multifunctional additives that are both flame retardant and weather-resistant is also crucial. This multifunctional additive has significant application prospects. Therefore, in-depth research on the synergistic mechanism of multifunctional additives and optimization of their functional performance are important tasks in the future field of polymer materials. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a flame retardant and anti-aging multifunctional additive and a preparation method thereof. The dual-functional integrated additive can give materials not only good flame retardancy but also good anti-aging properties because it contains the flame retardant element fluorine and the high-efficiency free radical scavenger tetramethylpiperidine structure. The long octadecyl chain contained in the structure can increase the compatibility with the matrix resin, improve the easy precipitation and migration phenomena of conventional additives, and effectively solve the problems existing in the prior art of developing flame retardant and anti-aging high-performance materials.

[0006] The invention discloses a long-acting flame retardant and anti-aging auxiliary agent, a preparation method and application thereof, which are mainly divided into two steps. Firstly, 4-hydroxy-2,2,6,6-tetramethylpiperidinyl nitroxide free radical is reacted with trimethyl (trifluoromethyl) silane to obtain 2,2,6,6-tetramethyl-1-trifluoromethoxy-4-piperidinol, and then the 2,2,6,6-tetramethyl-1-trifluoromethoxy-4-piperidinol is reacted with methyl stearate through an ester exchange reaction to obtain the long-acting flame retardant and anti-aging multifunctional auxiliary agent. The product has not only good compatibility and migration resistance, but also dual anti-flaming and anti-aging effects.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] The present invention provides a flame retardant and anti-aging multifunctional additive, the general structural formula of which is as follows:

[0009]

[0010] The present invention also provides a long-acting flame retardant and anti-aging multifunctional additive and a preparation method thereof, wherein 2,2,6,6-tetramethyl-1-trifluoromethoxy-4-piperidinol is obtained by reacting 4-hydroxy-2,2,6,6-tetramethylpiperidinyl nitrogen oxide free radical with trimethyl (trifluoromethyl) silane and methyl stearate to obtain the long-acting flame retardant and anti-aging multifunctional additive through ester exchange reaction, and the reaction equation is as follows:

[0011]

[0012] The preparation method of the long-lasting flame retardant and anti-aging additive specifically comprises the following steps:

[0013] (1) under argon protection, adding a catalyst, ethyl acetate, 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical, trimethyl (trifluoromethyl) silane, and iodobenzene diacetate into a sealed Schlenk tube, stirring at 45-50° C. for 5-8 hours to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol;

[0014] (2) Add the 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, methyl stearate, catalyst and solvent obtained in S01 into a four-necked flask, and stir at 80-120° C. for 8-10 hours to obtain the long-lasting flame retardant and anti-aging additive as shown in claim 1.

[0015] Furthermore, in step (1), the catalyst is potassium fluoride and the ethyl acetate is ultra-dry ethyl acetate.

[0016] Furthermore, in step (1), the molar ratio of potassium fluoride, 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical, trimethyl (trifluoromethyl) silane, and iodobenzene diacetate is 0.5-3:0.2-5:0.5-5:0.1-1.8; and the molar ratio of ethyl acetate to trimethyl (trifluoromethyl) silane is 8-20:1.

[0017] Furthermore, in step (2), the molar ratio of 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol to methyl stearate is 1 to 1.2:1.

[0018] Furthermore, in step (2), the mass of the catalyst is 1 to 1.5% of the mass of 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol; and the molar ratio of the methyl stearate to the solvent is 1:3 to 10.

[0019] Furthermore, the catalyst is one of tetrabutyl titanate, sodium ethoxide or aluminum isopropoxide, and the solvent is one of toluene, n-octane or petroleum ether.

[0020] The present invention provides an application of a long-lasting flame retardant and anti-aging auxiliary agent, wherein the long-lasting flame retardant and anti-aging auxiliary agent as claimed in claim 1 is used in one or more base resins of PP, PE, PS, ABS and PA6.

[0021] Furthermore, the long-lasting flame retardant and anti-aging auxiliary agent is added as a flame retardant synergist in an amount of 0.05-2%.

[0022] Furthermore, the long-lasting flame retardant and anti-aging agent is added in an amount of 0.5 to 50% as a flame retardant and weather resistant agent.

[0023] The beneficial effects of the present invention are:

[0024] The design of the functionalized additive of the present invention can produce significant synergistic effects in terms of flame retardancy and anti-aging, and its long-chain structure increases the compatibility with the matrix resin and the migration resistance, thereby effectively improving the overall performance efficiency of the material. At the same time, the molecular structure cleverly combines the high-efficiency flame retardant element fluorine and the free radical scavenger tetramethylpiperidine, which reduces the antagonism risk between different additives while greatly improving the effective activity and durability of the additives. In addition, the use of a single additive to replace multiple additives not only simplifies the material formula design and processing process, reduces the complexity of production, but also effectively reduces the impact caused by compatibility issues between different additives, can significantly reduce raw material and processing costs, and the optimized formula and processing flow help to improve production efficiency and shorten the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the OM diagram of the precipitation of the surface additive in Example 5;

[0026] Figure 2 This is the OM diagram of the surface additive precipitation in Comparative Example 1. DETAILED DESCRIPTION

[0027] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] The blank samples mentioned below are all pure resins without adding additives, and are standard test samples prepared under the same conditions as in the examples.

[0029] Example 1

[0030] Under argon protection, add 16mmol activated KF, 40ml ultra-dry ethyl acetate, 16mmol trimethyl (trifluoromethyl) silane, 8mmol 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical and 8mmol phenyl diacetate to a 250ml Schlenk tube, seal the Schlenk tube, and stir at 45°C for 5h to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, with a yield of 97%. Then, add 50g tetrabutyl titanate and 220g methyl stearate to a 500ml four-necked flask, add 460g toluene as solvent, start stirring, stir at 80°C, 150r / min for 30min, cool to 30°C, add 200g tetramethyl piperidinol, start stirring, react at 90°C for 8h, cool to room temperature, then wash, decolorize, and filter to obtain the target product with a yield of 78%.

[0031] Example 2

[0032] Under argon protection, add 16mmol activated KF, 40ml ultra-dry ethyl acetate, 16mmol trimethyl (trifluoromethyl) silane, 8mmol 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical and 8mmol phenyl diacetate to a 250ml Schlenk tube, seal the Schlenk tube, and stir at 50°C for 5h to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, with a yield of 99%. Then, add 50g tetrabutyl titanate and 220g methyl stearate to a 500ml four-necked flask, add 460g toluene as solvent, start stirring, stir at 80°C, 150r / min for 30min, cool to 30°C, add 200g tetramethyl piperidinol, start stirring, react at 90°C for 8h, cool to room temperature, then wash, decolorize, and filter to obtain the target product with a yield of 85%.

[0033] Example 3

[0034] Under argon protection, add 16mmol activated KF, 40ml ultra-dry ethyl acetate, 16mmol trimethyl (trifluoromethyl) silane, 8mmol 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical and 8mmol phenyl diacetate to a 250ml Schlenk tube, seal the Schlenk tube, and stir at 50°C for 5h to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxy piperidinol, with a yield of 99%. Then, add 50g tetrabutyl titanate and 220g methyl stearate to a 500ml four-necked flask, add 460g toluene as solvent, start stirring, stir at 90°C, 150r / min for 30min, cool to 30°C, add 200g tetramethyl piperidinol, start stirring, react at 100°C for 8h, cool to room temperature, then wash, decolorize, and filter to obtain the target product with a yield of 93%.

[0035] Example 4

[0036] Under argon protection, add 16mmol activated KF, 40ml ultra-dry ethyl acetate, 16mmol trimethyl (trifluoromethyl) silane, 8mmol 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical and 8mmol phenyl diacetate to a 250ml Schlenk tube, seal the Schlenk tube, and stir at 50°C for 5h to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, with a yield of 99%. Then, add 50g tetrabutyl titanate and 220g methyl stearate to a 500ml four-necked flask, add 460g toluene as solvent, start stirring, stir at 90°C, 150r / min for 60min, cool to 30°C, add 200g tetramethyl piperidinol, start stirring, react at 100°C for 8h, cool to room temperature, then wash, decolorize, and filter to obtain the target product with a yield of 90%.

[0037] Example 5

[0038] Under argon protection, add 16mmol activated KF, 40ml ultra-dry ethyl acetate, 16mmol trimethyl (trifluoromethyl) silane, 8mmol 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical and 8mmol phenyl diacetate to a 250ml Schlenk tube, seal the Schlenk tube, and stir at 50°C for 5h to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, with a yield of 99%. Then, add 55g tetrabutyl titanate and 220g methyl stearate to a 500ml four-necked flask, add 460g toluene as solvent, start stirring, stir at 90°C, 150r / min for 30min, cool to 30°C, add 200g tetramethyl piperidinol, start stirring, react at 100°C for 8h, cool to room temperature, then wash, decolorize, and filter to obtain the target product with a yield of 95%.

[0039] 8% of Examples 1 to 5 were added to nylon 6 resin, and the remaining 92% by mass was nylon 6 matrix. The mixture was mixed at 800 rpm for 5 min in a high-speed mixer to obtain a premix. The premix was then extruded and granulated by a twin-screw extruder at 180 to 230° C. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical strips and 1.6 mm flame retardant strips, respectively, at an injection molding temperature of 220° C., a pressure of 700 bar, and a pressure holding time of 10 s. The strips were placed in a xenon lamp aging box for a 2000 h aging test, and the aging standard was GB / T 16422.2. After the aging was completed, the mechanical properties and flame retardant property retention rate were tested. The specific results are shown in Table 1.

[0040] Example 6

[0041] The sample was weighed according to the mass ratio of the product of Example 5: (APP (ammonium polyphosphate) + CFA (carbon-forming agent)): PP = 1:23:76, and mixed in a high-speed mixer at 800 rpm for 5 min to obtain a premix. The premix was then extruded and granulated at 180-200° C. by a twin-screw extruder. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical strips and 1.6 mm flame-retardant strips, respectively, at an injection molding temperature of 200° C., a pressure of 600 bar, and a pressure holding time of 10 s. The strips were placed in a xenon lamp aging box for an 800 h aging test, the aging standard being GB / T 16422.2. After aging, the mechanical properties and flame retardant property retention rate were tested. The specific results are shown in Table 3.

[0042] Example 7

[0043] The sample was weighed according to the mass ratio of the product of Example 5: (APP (ammonium polyphosphate) + CFA (carbon-forming agent)): PP = 1.5:22.5:76, and mixed in a high-speed mixer at 800 rpm for 5 min to obtain a premix. The premix was then extruded and granulated by a twin-screw extruder at 180-200° C., and finally the obtained plastic particles were injection molded into standard color plates, mechanical strips and 1.6 mm flame-retardant strips, respectively, at an injection molding temperature of 200° C., a pressure of 600 bar, and a pressure holding time of 10 s. The strips were placed in a xenon lamp aging box for an 800 h aging test, the aging standard being GB / T 16422.2. After aging, the mechanical properties and flame retardant property retention rate were tested. The specific results are shown in Table 3.

[0044] Comparative Example 1

[0045] 8% melamine cyanurate (MCA), 2% HALS 770 and 90% nylon 6 by mass ratio were mixed in a high-speed mixer at 800 rpm for 5 min to obtain a premix, and then the premix was extruded and granulated by a twin-screw extruder at 180-230°C. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical specimens and 1.6 mm flame retardant specimens, respectively, at an injection molding temperature of 220°C, a pressure of 700 bar, and a pressure holding time of 10s. The specimens were placed in a xenon lamp aging box for a 2000 h aging test, and the performance before and after the aging test was compared.

[0046] Comparative Example 2

[0047] 8% melamine cyanurate (MCA), 1% HALS 770, 1% UVA 1164 and 90% nylon 6 by mass ratio were prepared into standard color plates, mechanical splines and 1.6 mm flame retardant splines by injection molding according to the scheme in the above comparative example 1, and aged for 2000 hours under the same conditions, and the performance before and after aging was compared.

[0048] The following are examples and comparative examples performance evaluation methods and results:

[0049] Table 1 Aging and flame retardant performance test data 1

[0050]

[0051] By comparing the flame retardant test results of each group before and after aging, it was found that the embodiment had outstanding long-term flame retardancy and anti-aging properties. After aging with a xenon lamp for 2000 hours, its flame retardancy and weather resistance did not significantly decay, and the performance was greatly improved compared with the blank sample and the existing conventional formula system. Compared with the comparative example 4 prepared by the same scheme, due to the shorter carbon chain length, there were still problems such as precipitation and poor long-term performance retention, indicating that the components added to the embodiment showed excellent long-term flame retardancy and aging resistance compared with the comparative example.

[0052] Table 2 Aging and flame retardant performance test data Table 2

[0053]

[0054] Comparison between Comparative Examples 1 and 2 and the blank group revealed that the additives added to Comparative Examples 1 and 2 migrated to the surface of the material, causing side reactions, resulting in yellowing of the sample surface and frosting, and the glossiness of the sample surface decreased (see Figure 2 ), the roughness increased, and the color difference after aging increased significantly, while the color difference of the blank sample without adding anti-aging additives after aging was lower than that of Comparative Examples 1 and 2, indicating that there was an obvious antagonistic effect in the flame retardant and anti-aging system with flame retardant and weathering additive added respectively. In addition, compared with Comparative Example 4, the surface of the sample prepared by adding the present technology was still smooth and free of precipitates after aging for 2000 hours (see Figure 1 ), indicating that this technology can effectively solve the antagonistic effect caused by the addition of different additives while ensuring the long-term flame retardancy and weather resistance of the material.

[0055] Comparative Example 3

[0056] The sample was weighed according to the mass ratio of (APP (ammonium polyphosphate) + CFA (carbon-forming agent)): PP = 24:76, and mixed in a high-speed mixer at 800 rpm for 5 min to obtain a premix. The premix was then extruded and granulated at 180-200°C by a twin-screw extruder. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical strips and 1.6 mm flame-retardant strips, respectively. The injection molding temperature was 200°C, the pressure was 600 bar, and the pressure was maintained for 10 seconds. The strips were placed in a xenon lamp aging box for 800 h aging test. The aging standard was GB / T 16422.2. After aging, the mechanical properties and flame retardant property retention rate were tested. The specific results are shown in Table 3.

[0057] Table 3 Flame retardant synergy comparison data table

[0058]

[0059] The test data in Table 3 show that, under the same additive addition amount, the flame retardancy of the samples without the additives of this solution before and after aging is much lower than that of the present technical solution, indicating that the multifunctional additives prepared by this patented technology have excellent flame retardant synergy.

[0060] Comparative Example 4

[0061] Under argon protection, 16mmol activated KF, 40ml ultra-dry ethyl acetate, 16mmol trimethyl (trifluoromethyl) silane, 8mmol 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical and 8mmol phenyl diacetate were added to a 250ml Schlenk tube, the Schlenk tube was sealed, and stirred at 50°C for 5h to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, with a yield of 99%. Then 55g tetrabutyl titanate and 220g methyl octanoate were added to a 500ml four-necked flask, 460g toluene was added as solvent, stirring was started, stirring at 90°C, 150r / min for 30min, cooling to 30°C, adding 200g tetramethyl piperidinol, stirring was started, reacting at 100°C for 8h, cooling to room temperature, and then washing, decolorizing, and filtering to obtain the target product as a multifunctional auxiliary agent with 8 carbon structures.

[0062] 8% of the sample prepared in Comparative Example 4 was added to nylon 6 resin, and the remaining 92% by mass was nylon 6 matrix. The mixture was mixed at 800 rpm for 5 min in a high-speed mixer to obtain a premix. The premix was then extruded and granulated at 180-230° C. by a twin-screw extruder. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical strips and 1.6 mm flame retardant strips, respectively. The injection molding temperature was 220° C., the pressure was 700 bar, and the pressure was maintained for 10 seconds. The strips were placed in a xenon lamp aging box for a 2000 h aging test. The aging standard was GB / T 16422.2. After the aging was completed, the mechanical properties and flame retardant property retention rate were tested. The specific results are shown in Tables 1 and 2.

[0063] It should be noted that the above content only illustrates the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A long-lasting flame retardant and anti-aging additive, characterized in that: The long-lasting flame retardant and anti-aging additive has the following structure:

2. A method for preparing a long-lasting flame retardant and anti-aging additive, characterized in that: The following steps are involved: (1) under argon protection, adding a catalyst, ethyl acetate, 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical, trimethyl (trifluoromethyl) silane, and iodobenzene diacetate into a sealed Schlenk tube, stirring at 45-50° C. for 5-8 hours to obtain the target product 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol; (2) Add the 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, methyl stearate, catalyst and solvent obtained in S01 into a four-necked flask, and stir at 80-120° C. for 8-10 hours to obtain the long-lasting flame retardant and anti-aging additive as shown in claim 1.

3. The method for preparing a long-lasting flame retardant and anti-aging additive according to claim 2, characterized in that: In step (1), the catalyst is potassium fluoride and the ethyl acetate is ultra-dry ethyl acetate.

4. The method for preparing a long-lasting flame retardant and anti-aging additive according to claim 2, characterized in that: In step (1), the molar ratio of potassium fluoride, 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical, trimethyl (trifluoromethyl) silane, and iodobenzene diacetate is 0.5-3:0.2-5:0.5-5:0.1-1.8; and the molar ratio of ethyl acetate to trimethyl (trifluoromethyl) silane is 8-20:

1.

5. The method for preparing a long-lasting flame retardant and anti-aging additive according to claim 2, characterized in that: In step (2), the molar ratio of 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol to methyl stearate is 1 to 1.2:

1.

6. The method for preparing a long-lasting flame retardant and anti-aging additive according to claim 2, characterized in that: In step (2), the mass of the catalyst is 1 to 1.5% of the mass of 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol; and the molar ratio of the methyl stearate to the solvent is 1:3 to 10.

7. The method for preparing a long-lasting flame retardant and anti-aging additive according to claim 6, characterized in that: The catalyst is one of tetrabutyl titanate, sodium ethoxide or aluminum isopropoxide, and the solvent is one of toluene, n-octane or petroleum ether.

8. Application of a long-lasting flame retardant and anti-aging additive, characterized in that: The long-lasting flame retardant and anti-aging additive as claimed in claim 1 is used in one or more base resins of PP, PE, PS, ABS and PA6.

9. The use of a long-lasting flame retardant and anti-aging additive according to claim 8, characterized in that: The long-lasting flame retardant and anti-aging auxiliary agent is added as a flame retardant synergist in an amount of 0.05-2%.

10. The use of a long-lasting flame retardant and anti-aging additive according to claim 8, characterized in that: The long-lasting flame retardant and anti-aging agent is added in an amount of 0.5-50% as a flame retardant and weather resistant agent.

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