Composition with fuel cleaning function

Abstract

This invention relates to the field of fuel detergents and discloses a composition with fuel cleaning function. The composition contains a Mannich base and an aromatic amine-containing polymer in a weight ratio of 0.2-10. This invention utilizes the combination of the Mannich base and the aromatic amine-containing polymer, resulting in a synergistic effect and significant cleaning effect. It effectively controls combustion chamber deposits and meets the requirements of GB19592-2019 for gasoline cleaning performance.

Description

Technical Field

[0001] This invention relates to the field of fuel detergents, and more specifically to a composition having fuel cleaning function. Background Technology

[0002] Olefins in fuel undergo oxidation and polymerization reactions at high temperatures, forming viscous, gum-like and resinous substances that adhere to intake valves and combustion chambers, forming carbon deposits. Carbon deposits are poor conductors, and during engine operation, they become a high-temperature source, easily leading to pre-ignition or multiple ignition points causing knocking, affecting engine performance and lifespan. Furthermore, they occupy space, reducing cylinder volume and increasing the compression ratio, which can severely reduce engine power. Excessive carbon deposits on intake and exhaust valves can obstruct intake and exhaust, causing valves to fail to return to their original position or close improperly, affecting cylinder pressure. Excessive carbon deposits in the intake manifold roughen its walls, adsorbing some of the air-fuel mixture and causing the mixture entering the cylinder to become olefinic, affecting engine operation and power.

[0003] Currently, the latest generation of detergents primarily uses Mannich bases (see: Xin Shihao et al., Study on the Structure and Performance of Mannich Base Fuel Detergents, Petroleum Refining & Chemical Industry, November 2019, Vol. 50, No. 11). These bases have high thermal stability and can effectively remove intake valve deposits; however, using them alone can increase the formation of combustion chamber deposits. Therefore, it is necessary to further improve the detergency performance of Mannich bases. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems existing in the prior art and provide a composition with fuel cleaning function.

[0005] To achieve the above objectives, the present invention provides a composition having a fuel cleaning function, the composition containing a Mannich base and an aromatic amine-containing polymer in a weight ratio of 0.2-10.

[0006] This invention combines Mannich base with aromatic amine group, which produce a synergistic effect and a significant cleaning effect. It can effectively control combustion chamber deposits and meet the requirements of GB19592-2019 for gasoline cleaning performance. Attached Figure Description

[0007] Figure 1 This is the infrared spectrum of the target product prepared in Preparation Example 1. Detailed Implementation

[0008] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

[0009] The present invention provides a composition having a fuel cleaning function, characterized in that the composition contains a Mannich base and an aromatic amine-containing polymer in a weight ratio of 0.2-10.

[0010] In this invention, the weight ratio of the Mannich base to the polymer containing aromatic amine groups is preferably 0.3-1 (e.g., 0.3, 0.32, 0.35, 0.4, 0.5, 0.6, 0.8, 0.9 or any value between the above values).

[0011] In the composition of the present invention, the content of the Mannich base can be 10-30% by weight (preferably 15-25% by weight).

[0012] In this invention, the Mannich base can be any Mannich base commonly found in the art, but is preferably a Mannich base having the structure shown in formula (1):

[0013]

[0014] In equation (1), R 11 and R 12 Each group is independently selected from C1-C5 alkylene groups (preferably methylene or ethylene); PIB is a polyisobutylene group. More preferably, R 11 It is methylene. More preferably, R 12 The component is ethylene. More preferably, the number-average molecular weight of PIB is 800-1300. The Mannich base with this structure can exert a better synergistic effect with aromatic amide polymers compared with Mannich bases with other structures, thereby further improving the detergency performance.

[0015] In this invention, the composition may also contain conventional carrier oils and / or additives.

[0016] The carrier oil in this invention can be a carrier oil commonly used in the art. Based on the total weight of the composition, the content of the carrier oil can be 10-55% by weight, preferably 40-50% by weight.

[0017] Preferably, the carrier oil is at least one selected from polyether synthetic oil, polyalphaolefin synthetic oil (PAO), and mineral oil. The kinematic viscosity of the carrier oil at 100°C can be 10-100 mm⁻¹. 2 / s (The test method for kinematic viscosity is based on GB / T265-1988).

[0018] More preferably, the structure of the polyether synthetic oil is as shown in formula (2):

[0019]

[0020] In equation (2), R 13 It represents a hydrogen atom, a methyl group, or an ethyl group, and k is an integer from 3 to 20.

[0021] In this invention, the additive can be at least one of the additives commonly used in fuel detergents, such as demulsifiers, rust inhibitors, and diluents. The demulsifier is mainly used to improve the demulsification performance of the composition, preventing it from being emulsified into a W / O (water / oil) emulsion, and can be selected from at least one of polyether polymers (such as DL32), polyoxyethylene propylene glycol ethers (such as SP169), and tetrapolyoxypropylene derivatives of amines (such as T1001). The rust inhibitor is mainly used to improve the rust prevention function of the composition, preventing it from corroding equipment during use, and can be selected from at least one of heptadecanylimidazoline alkenyl succinate (such as T703), dodecenyl succinic acid (such as T746), and alkenyl succinate (such as T747). The diluent is mainly used to improve the viscosity of the composition for ease of use, and can be selected from at least one of aromatic solvent oils (such as S-1000, S-1500), kerosene, and dearomatized solvent oils (such as D60, D70).

[0022] Preferably, the content of the demulsifier is 0.5-1% by weight, more preferably 0.6-0.9% by weight, based on the total weight of the composition.

[0023] Preferably, the rust inhibitor content is 0.5-1% by weight, more preferably 0.5-0.9% by weight, based on the total weight of the composition.

[0024] Preferably, the diluent content is 10-30% by weight, more preferably 22.5-28.5% by weight, based on the total weight of the composition.

[0025] In this invention, the aromatic amine-containing polymer can be an aromatic amine-containing polyolefin maleic anhydride (especially an aromatic amine-containing polyisobutylene maleic anhydride). In a preferred embodiment of this invention, the aromatic amine-containing polymer used in this invention has the structure shown in formula (3):

[0026]

[0027] In formula (3):

[0028] A is H, a C1-C6 alkyl group, a C1-C6 alkoxy group, or a C4-C7 cycloalkyl group;

[0029] R0 can be H, halogen, C1-C6 alkyl, -O- (C1-C6 alkyl), or -COOH;

[0030] R1 is -O-(C1-C6 alkylene)- or -((C1-C6 alkylene)-O-. m -(C1-C6 alkylene)-, (C1-C6 alkylene)-T-(C1-C6 alkylene)-, substituted or unsubstituted five-membered ring, substituted or unsubstituted six-membered ring or substituted or unsubstituted seven-membered ring, where m is an integer from 0 to 5, and T is a substituted or unsubstituted five-membered heterocycle, six-membered heterocycle or seven-membered heterocycle.

[0031] J is a polymer long-chain group, selected from polyolefin, polyester or polyether, and the number average molecular weight of the polymer long-chain group is 500-3000, preferably 800-2500.

[0032] In a more preferred embodiment of the present invention, A is H.

[0033] According to a more preferred embodiment of the present invention, R0 is H or a C1-C4 alkyl group.

[0034] According to a more preferred embodiment of the present invention, R1 is -((C1-C4 alkylene)-O-) m -(C1-C4 alkylene)- or -(C1-C4 alkylene)- nitrogen-containing six-membered ring-(C1-C4 alkylene)-, where m is an integer from 1 to 3, preferably -(C1-C6 alkylene)-O-(C1-C6 alkylene)-O-(C1-C6 alkylene)- or R2 and R3 are each independently C1-C6 alkylene groups.

[0035] According to a more preferred embodiment of the present invention, J is one of polyethylene, polypropylene, polybutene, polyisobutylene, polypentene, polyhexene, polyoctene, polynonene, and polydecene.

[0036] In this invention, R0 can be at any position on the benzene ring, and can indicate that the substituent R0 is present at at least one of the 1-4 positions on the benzene ring.

[0037] According to the most preferred embodiment of the present invention, the aromatic amine-containing polymer has the structure shown in formula (M1) or formula (N1):

[0038]

[0039]

[0040] In formula (M1) or formula (N1), J is further preferably polyisobutylene-based.

[0041] In this invention, the method for preparing the above-mentioned polymer containing aromatic amine groups may include the following steps:

[0042] (1) The compound shown in formula (4) is brought into contact with the primary amine compound shown in formula (5) to carry out an imidization reaction (one-sided imidization reaction).

[0043]

[0044] (2) The compound shown in formula (6) is brought into contact with the imide reaction product obtained in step (1) to carry out a ring-opening reaction.

[0045]

[0046] In equations (4), (5), or (6), A, R0, R1, or J are defined in the same way as in the first aspect, and will not be repeated here.

[0047] In this invention, the compound represented by formula (4) is preferably a polyolefin succinic anhydride, more preferably a polyisobutylene succinic anhydride. The number-average molecular weight of the compound represented by formula (4) is preferably 800-2500.

[0048] In a preferred embodiment of the present invention, the degree of substitution of the polyolefin succinic anhydride is 0.9-1.3 (e.g., 0.9, 1, 1.1, 1.2, 1.25, 1.3, or any value between the above). The saponification value of the polyolefin succinic anhydride is 50-125 mgKOH / g (e.g., 55, 65, 75, 85, 95, 96, 98, 100, 110, 120 mgKOH / g, or any value between the above). "Saponification value" refers to the number of milligrams of potassium hydroxide required to saponify 1 gram of sample oil; "saponification value" is usually an indicator of the content of oily components added to fuel oil or lubricating oil.

[0049] In this invention, the compound represented by formula (5) is preferably: H2N-(C1-C6 alkylene)-O-(C1-C6 alkylene)-O-(C1-C6 alkylene)-NH2 and / or (wherein R2 and R3 are each independently a C1-C6 alkylene group), more preferably selected from 1,8-diamino-3,6-dioxaoctane. ), 1,4-bis(3-aminopropyl)piperazine 1,3-Cyclohexanediamine, 1,4-Cyclohexanediamine, isophoronediamine, or 4,4'-Diaminodicyclohexylmethane.

[0050] In this invention, the compound represented by formula (6) is preferably selected from one of the following compounds:

[0051]

[0052] According to some embodiments of the present invention, in step (1), the conditions for the imide reaction may include: a temperature of 90-180°C (90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C or any value between the above values), and a time of 1-5h (1h, 1.5h, 2h, 2.5h, 3h, 4h, 5h or any value between the above values).

[0053] According to some embodiments of the present invention, the molar ratio of the compound shown in formula (4) to the compound shown in formula (5) can be 0.8-1.5 (such as any value between 0.8, 0.9, 1, 1.1, 1.3, 1.5 or above).

[0054] In this invention, there are no particular restrictions on the feeding method of the material in step (1). However, in order to control the yield of more monoimide products in step (1), the reaction is carried out in an excess manner with the compound shown in formula (5). For example, the compound shown in formula (4) can be gradually added to the compound shown in formula (5) for reaction. The preferred feeding method of the material in step (1) is as follows: relative to 0.05 mol of the compound shown in formula (5), the compound shown in formula (4) is added to the compound shown in formula (5) at a rate of 0.001-0.005 mol / min (such as 0.001 mol / min, 0.002 mol / min, 0.003 mol / min, 0.004 mol / min, 0.005 mol / min or any value between the above values). More preferably, relative to 1 mol of the compound shown in formula (5), the compound shown in formula (6) is added to the compound shown in formula (5) at a rate of 0.001-0.005 mol / min at 40-60°C under an inert atmosphere (the imidization reaction has already begun during the addition process). After the addition is complete, the temperature is raised to 90-180°C and the reaction continues for 1-5 h.

[0055] In this invention, in step (1), the imidization reaction is carried out in the presence of a first solvent. The amount of the first solvent is not particularly limited, as long as it meets the requirements of this invention. Preferably, the amount of the first solvent is 1-10g relative to 1g of the compound represented by formula (4).

[0056] In this invention, the first solvent is selected from at least one of ethyl acetate, aromatic solvent oil, petroleum ether, and C6-C8 alkanes.

[0057] In this invention, in step (1), the imidization reaction is carried out under an inert atmosphere, which is preferably provided by nitrogen.

[0058] The present invention does not impose any special restrictions on the post-processing steps of step (1). It can be carried out in accordance with the conventional post-processing methods in the field, or no special post-processing can be carried out. The system after the reaction in step (1) can be directly cooled to below 50°C and used directly for the next reaction.

[0059] According to some embodiments of the present invention, the conditions for the ring-opening reaction may include: a temperature of 20-100°C (20°C, 30°C, 40°C, 50°C, 60°C, 70°C, 80°C, 90°C, 100°C or any value between the above values), and a time of 1-4 hours (1 hour, 1.5 hours, 2 hours, 2.5 hours, 3 hours, 4 hours or any value between the above values).

[0060] According to some embodiments of the present invention, the ring-opening reaction is carried out under an inert atmosphere, preferably provided by nitrogen.

[0061] According to some embodiments of the present invention, in step (2), the amount of the compound shown in formula (6) can be 0.4-1.1 mol relative to 1 mol of the compound shown in formula (5).

[0062] The present invention does not impose any particular restrictions on the method of adding materials in step (2), as long as it meets the requirements of the present invention. In order to obtain better results, the compound shown in formula (6) can be added to the reaction product of step (1).

[0063] In this invention, the ring-opening reaction is carried out in the presence of a second solvent. The amount of the second solvent is not particularly limited, as long as it meets the requirements of this invention. Preferably, the amount of the second solvent is 1-10 g relative to 1 g of the compound represented by formula (4).

[0064] In this invention, the second solvent is selected from at least one of ethyl acetate, aromatic solvent oil, petroleum ether, and C6-C8 alkanes. In this invention, the first solvent and the second solvent may be the same or different.

[0065] The present invention does not impose any particular restrictions on the post-processing steps of step (2). The post-processing can be performed according to conventional ring-opening reaction post-processing methods in the art, or only the solvent removal step can be performed to obtain the polymer (product) of the present invention. For systems where the compound shown in formula (6) has not fully reacted, filter paper can be used to remove the unreacted compound shown in formula (6), and then the solvent can be removed to obtain the polymer (product) of the present invention. The product after solvent removal can be directly used in combination with Mannich bases.

[0066] According to the most preferred embodiment of the present invention, the composition contains 24-25% by weight of Mannich base detergent, 24-25% by weight of the polymer containing aromatic amine groups as shown in formula (M1), and 45-50% by weight of carrier oil (polyether synthetic oil).

[0067] The present invention also provides a method for preparing the composition as described above, characterized in that the method comprises: mixing an aromatic amine-containing polymer and a Mannich base. The mixing of the individual components is sufficient; there are no particular requirements for the mixing conditions, but preferably, the mixing conditions include: a temperature of 50-60°C and a time of 1-1.5 hours. Under these conditions, a yellow, clear, and transparent composition (cleaning compound) can be obtained.

[0068] The present invention will be described in detail below through examples. Unless otherwise specified, all reagents used in the present invention are of analytical grade and are commercially available.

[0069] Unless otherwise specified, the number-average molecular weight Mn was determined by gel permeation chromatography (GPC). The determination conditions for any GPC or GPC chromatograms mentioned are as follows: instrument: Waters 1515 gel permeation chromatograph (Waters, Inc.); mobile phase: tetrahydrofuran; flow rate: 1 mL / min; column temperature: 35 °C; elution time: 33 min; sample volume fraction: 0.1-0.15%.

[0070] The saponification value was analyzed and determined according to SY2604-77.

[0071] Among them, the number-average molecular weight of Mn-polyisobutylene.

[0072] Preparation Example 1

[0073] (1) Under a nitrogen atmosphere, 7.41 g (0.05 mol) of 1,8-diamino-3,6-dioxane (DODE) and 15 g of aromatic S150 solvent (Shanghai Huishuo Technology Co., Ltd.) were added to a three-necked flask. The temperature was raised to 50 °C, and 48 g (0.048 mol) of polyisobutylene maleic anhydride (prepared according to the method described in CN1315317A, polyisobutylene number-average molecular weight Mn = 1000, saponification value 97 mg KOH / g, degree of substitution X = 1.22) was dissolved in 15 g of aromatic S150 solvent under stirring. Under nitrogen protection, the solution was slowly added dropwise to the system containing DODE at a rate of 0.002 mol / min. After the addition was completed, the temperature was raised to 160 °C and maintained for 2 h; then the temperature was lowered to 30 °C.

[0074] (2) 8.15 g (0.05 mol) of the compound shown in formula (6) (R0 and A are both H) was dispersed in 10 g of aromatic S150 solvent. Under nitrogen protection, the compound was added to the imide reaction product from step (1). The temperature was controlled at 30 °C. After the addition was complete, the temperature was raised to 80 °C and maintained for 1.5 h. The solvent was then removed to obtain the target product containing the structure shown in formula (M1). The infrared spectrum of the target product is shown in [reference needed]. Figure 1 .

[0075] Figure 1 The results show that the product PIBSA-DODE-DH obtained in this preparation example has a concentration of 1701 cm⁻¹. -1 and 1774cm -1 The absorption peaks of the symmetric and antisymmetric stretching vibrations of C=O in the formation of imide are observed at 1646 cm⁻¹. -1 An absorption peak for the stretching vibration of C=O in the amide was observed at 3350 cm⁻¹. -1 and 3455cm -1 The absorption peaks of the symmetric stretching vibration and the antisymmetric stretching vibration of the primary amine formed on aniline are observed in the range of 650–900 cm⁻¹. -1 The appearance of an out-of-plane bending vibration peak of CH in the benzene ring indicates that the polyolefin product contains a benzene ring structure. Combined with the reaction process, it can be known that the product has the structure shown in formula (M1).

[0076] Preparation Example 2

[0077] (1) Under a nitrogen atmosphere, 10 g (0.05 mol) of 1,4-bis(3-aminopropyl)piperazine (BAPP) and 15 g of aromatic S150 solvent (Shanghai Huishuo Technology Co., Ltd.) were added to a three-necked flask. The temperature was raised to 50 °C, and 48 g (0.048 mol) of polyisobutylene maleic anhydride (prepared according to the method described in CN1315317A, polyisobutylene number-average molecular weight Mn = 1000, saponification value 97 mg KOH / g, degree of substitution X = 1.22) was dissolved in 15 g of aromatic S150 solvent under stirring. Under nitrogen protection, the solution was slowly added dropwise to the BAPP-containing system at a rate of 0.002 mol / min. After the addition was completed, the temperature was raised to 160 °C and the reaction was maintained for 2 h. Then the temperature was lowered to 30 °C.

[0078] (2) 8.15 g (0.05 mol) of the compound shown in formula (6) (R0 and A are both H) was dispersed in 10 g of aromatic S150 solvent. Under nitrogen protection, the product of the imide reaction in step (1) was added. The temperature was controlled at 30 °C. After the addition was complete, the temperature was raised to 80 °C and maintained for 2 h. The solvent was removed to obtain the target product containing the structure shown in formula (N1). The infrared spectrum of the target product shows that the product contains a benzene ring structure. Combined with the reaction process, it can be seen that the product has the structure shown in formula (N1).

[0079] Preparation Example 3

[0080] The preparation was carried out in the same manner as in Example 1, except that in step (1), 1,8-diamino-3,6-dioxaoctane was slowly added dropwise to the system containing polyisobutylene maleic anhydride at a rate of 0.002 mol / min, and the polymer with the structure shown in formula (3) was almost absent in the product.

[0081] Preparation Example 4

[0082] The preparation was carried out in the same manner as in Example 1, except that in step (1), a solution of polyisobutylene maleic anhydride was slowly added dropwise to the system containing DODE at a rate of 0.01 mol / min.

[0083] Preparation Example 5

[0084] The preparation was carried out in the same manner as in Example 1, except that the amount of polyisobutylene maleic anhydride used was 75 g (0.075 mol). At this time, the amount of compound shown in formula (6) consumed would be reduced accordingly. The reaction solution needs to be filtered to remove unreacted compound shown in formula (6) and the product is obtained by removing the solvent.

[0085] Preparation Example 6

[0086] At room temperature, 4.47 g (0.048 mol) of aniline and 15 g of aromatic S150 solvent were added to a three-necked flask. Under a nitrogen atmosphere, 40 g (0.04 mol) of polyisobutylene succinic anhydride (prepared according to the method described in CN1315317A, polyisobutylene number-average molecular weight Mn = 1000, saponification value 97 mg KOH / g, degree of substitution X = 1.22) was dissolved in 20 g of aromatic S150 solvent. The solution was slowly added to the three-necked flask under nitrogen protection and stirred. The temperature was controlled at 55 °C. After the addition was complete, the temperature was raised to 140 °C and maintained for 3 h. The solvent was then removed to obtain the polymer.

[0087] Examples 1-3

[0088] According to the types and weight percentages shown in Table 1, the product of the preparation example (polymer containing aromatic amine groups) was mixed with a Mannich base (structure as shown in formula (1), R 11 For methylene, R 12 Ethylene (PIB with a number average molecular weight of 1000) and carrier oil were added to a flask and stirred at 50-55℃ for 1-1.5 h to obtain a dark yellow, clear and transparent cleaning compound.

[0089] Among them, the carrier oil is a polyether synthetic oil (structure as shown in formula (2)). 13 Methyl, k=15), mineral oil 600SN and polyalphaolefin synthetic oil (PAO) were all purchased from Maoming Petrochemical.

[0090] Table 1

[0091]

[0092] Examples 4-7

[0093] The cleaning compound was prepared in accordance with the method of Example 1, except that the polymer containing aromatic amine groups was replaced with the polymers obtained in Preparation Examples 3-6.

[0094] Comparative Example 1

[0095] The cleaning compound was prepared according to the method of Example 1, except that the polymer containing aromatic amine groups was replaced with an equal amount of Mannich base.

[0096] Comparative Examples 2-7

[0097] The cleaning compound was prepared in accordance with the method of Example 1, except that the Mannich base was replaced with an equal amount of the polymer obtained in Preparation Examples 1-6.

[0098] Test Example 1

[0099] Cleanliness simulation experiment

[0100] Referring to GB / T37322-2019, the above-mentioned detergent compound was added to 300ml of automotive VI-octane gasoline at a specified dosage (300ppm, approximately 0.0673g). Its detergency was evaluated using an L-2 gasoline engine intake valve deposit simulation tester. Combustion chamber deposits were simulated using an SDT-Q600 TGA-DSC thermogravimetric analyzer. The residual rate of the sample after treatment at 400℃ for 0.8h (=weight difference of deposits before and after treatment at 400℃ / weight of deposits before treatment at 400℃×100%) represented the increase in combustion chamber deposits. The performance evaluation results of the detergent compound are shown in Table 2.

[0101] Table 2

[0102]

[0103]

[0104] As shown in Table 2, the aromatic amine-containing polymers in the examples have a very good synergistic effect with Mannich bases, with the sediment reduction rate concentrated between 80-90%, and the best cleaning performance reaching over 90%.

[0105] The preferred embodiments of the present invention have been described in detail above; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various technical features in any other suitable manner. These simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A composition having a fuel cleaning function, characterized in that, The composition contains a Mannich base and an aromatic amine-containing polymer in a weight ratio of 0.2-10; The structure of the Mannich base is shown in formula (1): （1） In equation (1), R 11 and R 12 Each is independently selected from C1-C5 alkylene groups; PIB is a polyisobutylene group; The polymer containing aromatic amine groups has the structure shown in formula (3): （3） In formula (3): A is H, a C1-C6 alkyl group, a C1-C6 alkoxy group, or a C4-C7 cycloalkyl group; R0 can be H, halogen, C1-C6 alkyl, -O- (C1-C6 alkyl), or -COOH; R1 is -O-(C1-C6 alkylene)- or -((C1-C6 alkylene)-O-). m -(C1-C6 alkylene)-, (C1-C6 alkylene)-T-(C1-C6 alkylene)-, substituted or unsubstituted five-membered ring, substituted or unsubstituted six-membered ring or substituted or unsubstituted seven-membered ring, where m is an integer from 0 to 5, and T is a substituted or unsubstituted five-membered heterocycle, six-membered heterocycle or seven-membered heterocycle. J is a polymer long-chain group, selected from polyolefin, polyester or polyether, and the number average molecular weight of the polymer long-chain group is 500-3000.

2. The composition according to claim 1, wherein, The weight ratio of the Mannich base to the aromatic amine-containing polymer is 0.3-1.

3. The composition according to claim 1, wherein, R 11 and R 12 Each is independently selected from methylene or ethylene.

4. The composition according to claim 1, wherein, A is H.

5. The composition according to claim 1, wherein, R0 is H or a C1-C4 alkyl group.

6. The composition according to claim 1, wherein, R1 is -((C1-C4 alkylene)-O-) m -(C1-C4 alkylene)- or -(C1-C4 alkylene)- nitrogen-containing six-membered ring-(C1-C4 alkylene)-, where m is an integer from 1 to 3.

7. The composition according to claim 1, wherein, R1 is -(C1-C6 alkylene)-O-(C1-C6 alkylene)-O-(C1-C6 alkylene)- or R2 and R3 are each independently C1-C6 alkylene groups.

8. The composition according to claim 1, wherein, J is one of polyethylene, polypropylene, polybutene, polyisobutylene, polypentene, polyhexene, polyoctene, polynonene, and polydecene.

9. The composition according to claim 1 or 2, wherein, The aromatic amine-containing polymer has the structure shown in formula (M1) or formula (N1): （M1） （N1）。

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