A long-lasting flame retardant and anti-aging additive and its preparation method and application

Abstract

The invention belongs to the technical field of polymer material additives, and specifically discloses a long-acting flame retardant and anti-aging additive, a preparation method and application thereof. The invention comprises the following steps: firstly, 4-hydroxy-2,2,6,6-tetramethylpiperidine nitroxide free radical is reacted with trimethyl (trifluoromethyl) silane to obtain 2,2,6,6-tetramethyl-1-trifluoromethoxy-4-piperidinol; 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 additive. The dual-functional integrated additive can impart both good flame retardancy and good aging resistance to materials because its molecules contain both the high-efficiency flame retardant element fluorine and the free radical scavenger tetramethylpiperidine structure. The long octadecyl chain contained in the structure can increase compatibility with a 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.

Description

Technical Field

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

[0002] Due to their excellent comprehensive properties, polymer materials are widely used in a wide range of fields, including building materials, household appliances, automobiles, high-speed rail, and aircraft. With the advancement of technology and the expansion of industrial applications, single-function materials are no longer able to meet the complex and ever-changing environmental and application requirements. In particular, in the fields of construction, transportation, aerospace, electronics, and electrical appliances, higher requirements are being placed on the safety, stability, and durability of materials.

[0003] Functionalizing materials by adding various additives is the simplest and most effective method. For example, to improve the flame retardancy of polymer materials, flame retardants can be introduced into the substrate. Based on their relationship with the substrate, flame retardants can be categorized as additive-based and reactive-based. Currently, research on flame retardancy in polymer materials focuses primarily on additive-based flame retardants. Additive-based flame retardants are added to the substrate through physical melt blending, imparting flame retardancy. To improve the aging resistance of polymer materials, various anti-aging additives, such as hindered phenolic antioxidants and hindered amine light stabilizers, are added to the substrate. However, most flame retardants and anti-aging additives have compatibility issues with the substrate, making them difficult to disperse. Furthermore, conventional additives currently available on the market are prone to migration and precipitation, impacting material performance and effective lifespan. Furthermore, the simultaneous addition of multiple additives can increase material processing difficulties due to changes in the melt index and reduced fluidity, and can also lead to a decrease in the mechanical properties of the polymer material. 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 address these issues, the compatibility of flame retardants and anti-aging agents, as well as their potential antagonistic effects, must be comprehensively considered during the research and development of polymer materials to ensure the safety and durability of the materials in practical applications. Furthermore, the design and development of multifunctional additives that offer both flame retardancy and weathering resistance is crucial. These multifunctional additives hold significant application potential, and therefore, in-depth research into their synergistic mechanisms and optimization of their functional performance are crucial tasks in the future of polymer materials research. 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 the material good flame retardancy and good aging resistance because it contains the flame retardant element fluorine and the efficient free radical scavenger tetramethylpiperidine structure. The long octadecyl chain contained in the structure can increase the compatibility with the matrix resin, improve the precipitation and migration phenomena of conventional additives, and effectively solve the problems existing in the existing technology for developing flame retardant and anti-aging high-performance materials.

[0006] The invention discloses a long-lasting flame retardant and anti-aging auxiliary agent, a preparation method and application thereof, which mainly includes 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; 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-lasting flame retardant and anti-aging multifunctional auxiliary agent. The product not only has good compatibility and migration resistance, but also has dual flame retardant 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-lasting flame retardant and anti-aging multifunctional additive and a preparation method thereof. The long-lasting flame retardant and anti-aging multifunctional additive is obtained by reacting 4-hydroxy-2,2,6,6-tetramethylpiperidinyl nitroxide free radical with trimethyl (trifluoromethyl) silane to obtain 2,2,6,6-tetramethyl-1-trifluoromethoxy-4-piperidinol and methyl stearate, and then undergoing an ester exchange reaction. The reaction equation is as follows:

[0011]

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

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

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

[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. The long-lasting flame retardant and anti-aging auxiliary agent is used in one or more base resins selected from 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 addition amount of the long-lasting flame retardant and anti-aging agent as a flame retardant and weathering resistant agent is 0.5 to 50%.

[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 compatibility with the matrix resin and migration resistance, thereby effectively improving the overall performance efficiency of the material. At the same time, the molecular structure cleverly combines the highly efficient flame retardant element fluorine and the free radical scavenger tetramethylpiperidine, reducing the risk of antagonism between different additives while significantly 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 formulation 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 surface additive precipitation 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 described below with reference to 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 standard test samples prepared under the same conditions as in the examples without adding any additives and pure resin.

[0029] Example 1

[0030] Under argon, a 250ml Schlenk tube was charged with 16mmol of activated KF, 40ml of ultra-dry ethyl acetate, 16mmol of trimethyl(trifluoromethyl)silane, 8mmol of 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinylnitroxide, and 8mmol of phenylenediacetate. The Schlenk tube was sealed and stirred at 45°C for 5h to obtain the target product, 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, in a yield of 97%. Subsequently, 50g of tetrabutyl titanate and 220g of methyl stearate were added to a 500ml four-necked flask, followed by 460g of toluene as solvent. The mixture was stirred at 80°C and 150 rpm for 30min. After cooling to 30°C, 200g of tetramethylpiperidinol was added and stirred. The reaction was continued at 90°C for 8h, cooled to room temperature, and then washed with water, decolorized, and filtered to obtain the target product in a yield of 78%.

[0031] Example 2

[0032] Under argon, a 250ml Schlenk tube was charged with 16mmol of activated KF, 40ml of ultra-dry ethyl acetate, 16mmol of trimethyl(trifluoromethyl)silane, 8mmol of 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinylnitroxide, and 8mmol of phenylenediacetate. The Schlenk tube was sealed and stirred at 50°C for 5h to obtain the target product, 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, in a yield of 99%. Subsequently, 50g of tetrabutyl titanate and 220g of methyl stearate were added to a 500ml four-necked flask, followed by 460g of toluene as solvent. The mixture was stirred at 80°C and 150 rpm for 30min. After cooling to 30°C, 200g of tetramethylpiperidinol was added and stirred. The reaction was continued at 90°C for 8h, cooled to room temperature, and then washed with water, decolorized, and filtered to obtain the target product in an 85% yield.

[0033] Example 3

[0034] Under argon, a 250ml Schlenk tube was charged with 16mmol of activated KF, 40ml of ultra-dry ethyl acetate, 16mmol of trimethyl(trifluoromethyl)silane, 8mmol of 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinylnitroxide, and 8mmol of phenylenediacetate. The Schlenk tube was sealed and stirred at 50°C for 5h to obtain the target product, 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, in a yield of 99%. Subsequently, 50g of tetrabutyl titanate and 220g of methyl stearate were added to a 500ml four-necked flask, followed by 460g of toluene as solvent. The mixture was stirred at 90°C and 150 rpm for 30min. After cooling to 30°C, 200g of tetramethylpiperidinol was added and stirred. The reaction was continued at 100°C for 8h before cooling to room temperature. The mixture was then washed with water, decolorized, and filtered to obtain the target product in a yield of 93%.

[0035] Example 4

[0036] Under argon, a 250ml Schlenk tube was charged with 16mmol of activated KF, 40ml of ultra-dry ethyl acetate, 16mmol of trimethyl(trifluoromethyl)silane, 8mmol of 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinylnitroxide, and 8mmol of phenylenediacetate. The Schlenk tube was sealed and stirred at 50°C for 5h to obtain the target product, 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, in a yield of 99%. Subsequently, 50g of tetrabutyl titanate and 220g of methyl stearate were added to a 500ml four-necked flask, followed by 460g of toluene as solvent. The mixture was stirred at 90°C and 150 rpm for 60min, cooled to 30°C, and then 200g of tetramethylpiperidinol was added. Stirring was resumed and the reaction was continued at 100°C for 8h before cooling to room temperature. The mixture was then washed with water, decolorized, and filtered to obtain the target product in a 90% yield.

[0037] Example 5

[0038] Under argon, a 250ml Schlenk tube was charged with 16mmol of activated KF, 40ml of ultra-dry ethyl acetate, 16mmol of trimethyl(trifluoromethyl)silane, 8mmol of 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinylnitroxide, and 8mmol of phenylenediacetate. The Schlenk tube was sealed and stirred at 50°C for 5h to obtain the target product, 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, in a yield of 99%. Subsequently, 55g of tetrabutyl titanate and 220g of methyl stearate were added to a 500ml four-necked flask, followed by 460g of toluene as solvent. The mixture was stirred at 90°C, 150 rpm, for 30min. After cooling to 30°C, 200g of tetramethylpiperidinol was added and stirred. The reaction was continued at 100°C for 8h, then cooled to room temperature. The mixture was then washed with water, decolorized, and filtered to obtain the target product in a yield of 95%.

[0039] 8% of each of Examples 1 to 5 was added to nylon 6 resin, with the remaining 92% by mass being nylon 6 matrix. The mixture was mixed in a high-speed mixer at 800 rpm for 5 min to obtain a premix. The premix was then extruded and granulated through a twin-screw extruder at 180-230° C. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical splines, and 1.6 mm flame retardant splines, respectively. The injection molding temperature was 220° C., the pressure was 700 bar, and the pressure was maintained for 10 seconds. The splines were then placed in a xenon lamp aging chamber for 2000 h of aging test, according to the aging standard GB / T 16422.2. After aging, 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. through a twin-screw extruder. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical splines and 1.6 mm flame retardant splines, respectively. The injection molding temperature was 200° C., the pressure was 600 bar, and the pressure was maintained for 10 seconds. The splines were placed in a xenon lamp aging box for 800 h of aging test. The aging standard was GB / T 16422.2. After the aging was completed, the mechanical properties and flame retardant performance 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 at 180-200° C. through a twin-screw extruder. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical splines and 1.6 mm flame retardant splines, respectively. The injection molding temperature was 200° C., the pressure was 600 bar, and the pressure was maintained for 10 seconds. The splines were placed in a xenon lamp aging box for 800 h of aging test. The aging standard was GB / T 16422.2. After aging, the mechanical properties and flame retardant performance retention rate were tested. The specific results are shown in Table 3.

[0044] Comparative Example 1

[0045] 8% by mass of melamine cyanurate (MCA), 2% of HALS 770, and 90% of nylon 6 were mixed in a high-speed mixer at 800 rpm for 5 minutes to obtain a premix. The premix was then extruded and pelletized through a twin-screw extruder at 180-230°C. The resulting plastic particles were injection molded into standard color plates, mechanical strips, and 1.6mm flame-retardant strips at a temperature of 220°C, a pressure of 700 bar, and a holding pressure of 10 seconds. The strips were then placed in a xenon lamp aging chamber for 2000 hours of aging, and their performance before and after aging was compared.

[0046] Comparative Example 2

[0047] 8% by mass of melamine cyanurate (MCA), 1% HALS 770, 1% UVA 1164, and 90% nylon 6 were prepared into standard color plates, mechanical splines, and 1.6 mm flame-retardant splines according to the scheme in Comparative Example 1 above. The materials were aged for 2000 h 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 Table 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 2000 hours of xenon lamp aging, its flame retardancy and weather resistance did not significantly attenuate, and its performance was greatly improved compared with the blank sample and the existing conventional formula system. Compared with the comparative example 4 prepared with the same scheme, due to the shorter carbon chain length, precipitation still existed, and the long-term performance was poor. These results indicate that the components added to the embodiment exhibited 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 of Comparative Examples 1 and 2 with the blank group revealed that the additives added to Comparative Examples 1 and 2 migrated to the surface of the material, causing side reactions and resulting in yellowing and frosting on the sample surface, and the glossiness of the sample surface decreased (see Figure 2 ), the roughness increased, and the color difference after aging increased significantly. In contrast, the color difference of the blank sample after aging was lower than that of Comparative Examples 1 and 2 without the addition of anti-aging additives, indicating that a significant antagonistic effect occurred in the flame retardant and anti-aging system with the addition of flame retardants and weathering additives. In addition, compared with Comparative Example 4, the surface of the sample prepared by the present technology after aging for 2000 hours was still smooth and free of precipitates (see Figure 1 ), indicating that this technology effectively solves 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 through a twin-screw extruder. Finally, the obtained plastic particles were injection molded into standard color plates, mechanical splines and 1.6 mm flame retardant splines, respectively. The injection molding temperature was 200°C, the pressure was 600 bar, and the pressure was maintained for 10 seconds. The splines were then placed in a xenon lamp aging box for 800 h of 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 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 sample without the additive of this solution before and after aging is much lower than that of the present technical solution, indicating that the multifunctional additive prepared by this patented technology has excellent flame retardant synergy.

[0060] Comparative Example 4

[0061] Under argon, a 250ml Schlenk tube was charged with 16mmol of activated KF, 40ml of ultra-dry ethyl acetate, 16mmol of trimethyl(trifluoromethyl)silane, 8mmol of 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinylnitroxide, and 8mmol of phenylenediacetate. The Schlenk tube was sealed and stirred at 50°C for 5h to obtain the target product, 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol, in a yield of 99%. Subsequently, 55g of tetrabutyl titanate and 220g of methyl octanoate were added to a 500ml four-necked flask, followed by 460g of toluene as solvent. The mixture was stirred at 90°C and 150 rpm for 30min. After cooling to 30°C, 200g of tetramethylpiperidinol was added and stirred. The reaction was continued at 100°C for 8h before cooling to room temperature. The mixture was then washed with water, decolorized, and filtered to obtain the target product, a multifunctional additive with eight carbon atoms.

[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 minutes in a high-speed mixer to obtain a premix. The premix was then 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 splines, and 1.6 mm flame retardant splines, respectively. The injection molding temperature was 220° C., the pressure was 700 bar, and the pressure was maintained for 10 seconds. The splines were placed in a xenon lamp aging chamber for 2000 hours of 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 merely illustrates the technical idea of ​​the present invention and cannot be used to limit the scope of protection of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications all fall within the scope of protection 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, catalyst, ethyl acetate, 2,2,6,6-tetramethyl-4-hydroxy-1-piperidinyl nitroxide free radical, trimethyl (trifluoromethyl) silane, and iodobenzene diacetate were added to a sealed Schlenk tube and stirred 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 step (1) 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 3, 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 iodophenyl 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 1-1.2:

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 1-1.5% of the mass of 2,2,6,6-tetramethyl-1-trifluoromethoxypiperidinol; and the molar ratio of the methyl stearate to the solvent is 1:3-10.

7. The method for preparing a long-lasting flame retardant and anti-aging additive according to claim 6, characterized in that: In step (2), 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 selected from 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 addition amount of the long-lasting flame retardant and anti-aging agent as a flame retardant and weathering resistant agent is 0.5-50%.

Images