High performance synthetic resin and method for its preparation

Abstract

The application relates to the technical field of synthetic resins, and discloses a high-performance synthetic resin and a preparation method thereof. By introducing adamantane groups with unique structures into the side chains of polystyrene, the performance of the polystyrene is improved by using the high thermal stability and strength of the adamantane groups; by using the connection mode of covalent bonds, the nanomaterials are chemically bonded with the polystyrene, so that the interface performance between the nanomaterials and the polystyrene is improved, and a three-dimensional crosslinked network structure of the nanomaterials-polystyrene is formed, so that the polystyrene resin can better resist the damage of external force and the mechanical performance is enhanced; in addition, the barrier effect of the nanomaterials can also enhance the flame-retardant performance of the polystyrene resin, so that the application range of the polystyrene resin is further widened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of synthetic resin, in particular to a high-performance synthetic resin and a preparation method thereof. BACKGROUND

[0002] Synthetic resin has a wide range of applications in all aspects of daily life, polystyrene resin is a synthetic resin obtained by free radical polymerization of styrene, which is mature in application and low in cost, and occupies a large market in the field of thermal insulation materials in the construction industry, packaging materials such as disposable lunch boxes, and foamed plastic materials, but the large number of benzene ring structures of the side groups of the polystyrene molecular chain leads to high brittleness although it has high rigidity, and it cannot withstand large external stress, and as a thermal insulation material, the heat resistance and flame retardant performance of polystyrene are also poor, which does not meet the current standard of thermal insulation materials, in addition, the development of science and technology makes people gradually improve the comprehensive performance requirements of resin, therefore, developing high-performance polystyrene resin with excellent properties such as high rigidity, good heat resistance and flame retardant performance can not only solve the problems of polystyrene resin itself, but also further promote the development of polystyrene resin.

[0003] In order to solve the above problems, the patent with publication number CN107033266A discloses a preparation method of a high-dispersibility carbon nanotube / polystyrene nanocomposite, after surface modification of the carbon nanotube, the carbon nanotube / polystyrene nanocomposite is obtained by using the Pickering emulsion polymerization method, the excellent performance of the carbon nanotube is combined to improve the heat resistance and mechanical properties of polystyrene, but the improvement is not obvious, and the flame retardant performance is not enhanced, the patent with publication number CN105175921B discloses a montmorillonite / polyaniline nanometer flame-retardant polystyrene composite material, by using aniline monomers to in-situ polymerize on the surface of montmorillonite, the obtained montmorillonite / polyaniline nanocomposite is compounded with polystyrene, and the synergistic effect between one-dimensional polyaniline and two-dimensional nanometer montmorillonite layers is utilized to effectively improve the flame retardant performance of polystyrene, but the preparation process is slightly complex, therefore, filling polystyrene with nanomaterials can enhance the mechanical, mechanical, heat resistance and flame retardant properties of polystyrene to a certain extent, but further modification of polystyrene itself is needed to further improve its comprehensive performance. SUMMARY

[0004] The present application relates to the technical field of synthetic resin, in particular to a high-performance synthetic resin and a preparation method thereof.

[0005] The object of the present application can be achieved by the following technical solutions:

[0006] A preparation method of a high-performance synthetic resin comprises the following steps:

[0007] Carboxyl-terminated adamantyl polystyrene is prepared by using mercaptoacetic acid as a chain transfer agent and azobisisobutyronitrile as an initiator to initiate polymerization of adamantyl styrene.

[0008] The modified nanomaterial is covalently connected to the carboxyl-terminated adamantyl polystyrene to obtain a nanocomposite polystyrene synthetic resin, i.e., a high-performance synthetic resin.

[0009] Further, the preparation method of the adamantyl styrene comprises the following steps: 80-200 mL of toluene solvent is added to a reactor, 0.8-1.5 g of 1-bromoadamantane, 2 g of styrene, potassium carbonate and a palladium / carbon catalyst are weighed and added to the reactor, and then stirred uniformly, and then placed in an oil bath at 100-120 ℃, and then refluxed under the protection of nitrogen for 12-36 h, and then filtered, washed with dichloromethane, and then dried by using a rotary evaporator, and then the product is washed and dried to obtain the adamantyl styrene.

[0010] Further, the palladium / carbon catalyst is used in an amount of 20-30%.

[0011] By using the simple and efficient Fuker alkylation reaction, the adamantyl styrene is prepared in one step, which not only has a high yield, but also reduces the reaction loss in the multi-step synthesis process.

[0012] Further, the preparation method of the carboxyl-terminated adamantyl polystyrene comprises the following steps: 60-150 mL of ethanol solvent is added to a reactor, 10 g of adamantyl styrene, 0.3-0.6 g of mercaptoacetic acid and 0.02-0.05 g of azobisisobutyronitrile are weighed and added to the reactor, and then stirred uniformly, and then placed in a water bath at 60-80 ℃, and then reacted under the protection of nitrogen for 18-36 h, and then discharged and dried, and then extracted by using a Soxhlet extractor for 24 h with water as a solvent, and then vacuum dried to obtain the carboxyl-terminated adamantyl polystyrene.

[0013] By using the mercaptoacetic acid as a chain transfer agent, the finally prepared adamantyl polystyrene has a carboxyl end group structure, which improves the reaction activity of the end group and is beneficial to further grafting reaction, and the adamantyl group introduced in the polystyrene side chain has a unique structure and good stability, which can improve the heat resistance, mechanical properties and mechanical properties of the polystyrene.

[0014] Further, the nanomaterial can be any one of graphene oxide, nanosilica, montmorillonite and palygorskite.

[0015] The graphene oxide has super high strength, large specific surface area and sheet structure, and thus has good barrier property. The polystyrene is modified by using the graphene oxide, so that oxygen and heat can be effectively blocked, and the heat resistance and flame resistance of the polystyrene are effectively improved, and the mechanical strength of the polystyrene is enhanced. The nano-silicon dioxide has high strength, and can be deposited in the carbon layer generated by combustion to enhance the strength and stability of the carbon layer, so that the polystyrene is prevented from being further combusted due to the collapse of the carbon layer, and the flame resistance and mechanical strength of the polystyrene are improved. The montmorillonite and the attapulgite have similar chain structure, and have large specific surface area, good barrier property, high strength and other excellent properties. When the montmorillonite and the attapulgite are used as the modifier, the mechanical property, the mechanical property and the flame resistance of the polystyrene resin can be effectively improved.

[0016] Further, the preparation step of the modified nanomaterial is as follows: 1g of the nanomaterial is added into 100-200mL of ethanol solvent, and ultrasonic dispersion is performed for 20-40min; 0.4-0.8mL of the amino silane coupling agent is continuously added, and after mixing, the mixture is reacted in an oil bath at 80-100℃ for 6-18h; the product is cooled, and the solvent is evaporated by using a rotary evaporator; and vacuum drying is performed to obtain the modified nanomaterial.

[0017] Further, the amino silane coupling agent can be any one of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane or N-aminoethyl-3-aminopropyltriethoxysilane.

[0018] Further, the covalent connection comprises the following steps:

[0019] (1) 10-30mL of toluene solvent is added into a reactor, 0.1-0.35g of the modified nanomaterial is weighed and added into the reactor, and ultrasonic dispersion is performed for 30-60min to obtain a nanodispersion liquid;

[0020] (2) 0.03g of dicyclohexyl carbodiimide and 0.004g of 4-dimethylamino pyridine are added into 30mL of toluene solvent, and after being fully dissolved, the mixture is slowly added into the nanodispersion liquid in step (1), and stirring is uniformly performed to obtain a mixed liquid;

[0021] (3) 10g of carboxyl-terminated adamantyl polystyrene is weighed, and is fully dissolved in 200-450mL of toluene solvent; the mixed liquid prepared in step (2) is slowly added into the toluene solvent, and is transferred into a water bath, and is reacted at 10-35℃ for 12-24h; after the reaction is completed, filtration is performed, the filter cake is soaked in toluene, and filtration is continuously performed, and the operation is repeated for 2-3 times; the product is washed by using deionized water, and is subjected to centrifugal separation and vacuum drying to obtain a nanocomposite polystyrene synthetic resin, i.e. a high-performance synthetic resin.

[0022] By the above technical scheme, under the joint action of condensing agent dicyclohexyl carbodiimide and catalyst 4-dimethylaminopyridine, the amino on the surface of the amino-functionalized nanomaterial can react with the carboxyl-terminated adamantyl polystyrene to form a covalent bond, greatly improving the interfacial affinity of the nanomaterial and the polystyrene, avoiding the agglomeration of the nanomaterial in the polystyrene matrix, and causing the problem that the mechanical properties of the polystyrene cannot be effectively improved.

[0023] The beneficial effects of the present application are: adamantyl polystyrene is prepared by one step of Friedel-Crafts alkylation reaction, reducing the loss in the process of synthesizing adamantyl polystyrene by aldehyde reaction and Wittig reaction; adamantyl groups with unique structure are introduced into the side chain of polystyrene, and the heat resistance and mechanical strength of polystyrene are improved by using the high stability of adamantyl groups; nanomaterials and polystyrene are chemically bonded by using covalent bond connection mode, so that the interfacial properties between them are improved, and after connecting rich polystyrene molecular chains on the surface of nanomaterials, a three-dimensional cross-linked network structure of polystyrene centered on nanomaterials is formed, which can make the polystyrene resin better resist external damage and enhance its tensile strength, impact strength and bending strength. Test results show that the tensile strength of the high-performance synthetic resin prepared by nanomaterials and adamantyl polystyrene can be increased by 44.7% compared with ordinary polystyrene resin, the impact strength can be increased by 33.3%, and the bending strength can be increased by 21.1%. The existence of three-dimensional cross-linked network structure hinders the movement of polystyrene molecular chains, and the heat resistance of polystyrene resin is further improved by the heat resistance of nanomaterials. Test results show that the initial decomposition temperature of the high-performance synthetic resin prepared by graphene and adamantyl polystyrene resin is 24.2℃ higher than that of ordinary polystyrene resin. In addition, the barrier effect of nanomaterials can also enhance the flame retardant performance of polystyrene resin. Test results show that the limiting oxygen index of the high-performance synthetic resin prepared by graphene and adamantyl polystyrene resin can reach 25.4%, which is 6.4% higher than that of ordinary polystyrene resin. Therefore, by combining the advantages of nanomaterials and adamantyl, the performance of polystyrene resin is effectively improved, and the application range of polystyrene resin is further widened.

[0024] Of course, implementing any product of the present application does not necessarily require achieving all the advantages described above at the same time. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0026] Example 1

[0027] Preparation method of adamantylstyrene:

[0028] Into a reactor, 150 mL of toluene solvent was added, 1.2 g of 1-bromoadamantane, 2 g of styrene, 0.4 g of potassium carbonate and 1 g of palladium / carbon catalyst were weighed and added into the reactor, stirred uniformly, placed in an oil bath at 120℃, and refluxed under the protection of nitrogen for 24 h. After the reaction was completed, filtration was performed, dichloromethane was used for rinsing, a rotary evaporator was used for spin-drying the solvent, and the product was subjected to a washing and drying process to obtain adamantylstyrene, the structural formula of which is Adamantylstyrene structure detection: 1H NMR (400 MHz, CDCl3, δ ppm): 1.771 (m, 6H), 1.907 (s, 6H), 2.088 (s, 3H), 5.187 (d, 1H), 5.712 (d, 1H), 6.694 (dd, 1H), 7.352 (m, 4H). FT-IR (KBr, cm -1 ): 3101, 3024, 2898, 2852, 1635, 1615, 1562, 1533, 1391, 1352, 1295, 1138, 1042, 1003, 991, 905, 842, 811, 675, 637. Anal. Calcd for C 16 H 22 : C, 90.07; H, 10.16. Found: C, 89.65; H, 10.35.

[0029] Example 2

[0030] Preparation of carboxyl-terminated adamantyl polystyrene:

[0031] Into a reactor, 120 mL of ethanol solvent was added, 10 g of adamantylstyrene, 0.5 g of mercaptoacetic acid and 0.03 g of azobisisobutyronitrile were weighed and added into the reactor, stirred uniformly, placed in a water bath at 80℃, and reacted under the protection of nitrogen for 24 h. After the reaction was completed, the product was discharged and dried, water was used as a solvent, a Soxhlet extractor was used for extraction for 24 h, and vacuum drying was performed to obtain carboxyl-terminated adamantyl polystyrene, that is, a high-performance synthetic resin.

[0032] Example 3

[0033] Preparation of high-performance synthetic resin:

[0034] (1) 1 g of graphene oxide was added to 150 mL of ethanol solvent and ultrasonically dispersed for 30 min, 0.6 mL of 3-aminopropyltrimethoxysilane was continuously added, and after mixing, it was reacted in an oil bath at 80°C for 16 h. After the product was cooled, the solvent was evaporated using a rotary evaporator, and dried in vacuum to obtain amino-modified graphene.

[0035] (2) 20 mL of toluene solvent was added to the reactor, and 0.2 g of amino-modified graphene was continuously added to the reactor and ultrasonically dispersed for 40 min to obtain an amino-modified graphene dispersion liquid;

[0036] (3) 0.03 g of dicyclohexyl carbodiimide and 0.004 g of 4-dimethylamino pyridine were added to 30 mL of toluene solvent, and after being fully dissolved, it was slowly added to the nanodispersion liquid in step (2), and stirred uniformly to obtain a mixed liquid;

[0037] (4) 10 g of carboxyl-terminated adamantyl polystyrene prepared in Example 2 of the present application was weighed and fully dissolved in 450 mL of toluene solvent, and the mixed liquid prepared in step (3) was slowly added thereto, and transferred to a water bath at 35°C and reacted for 24 h. After the reaction was completed, it was filtered, the filter cake was soaked with toluene and then filtered again, and this was repeated three times. The product was washed with deionized water, centrifuged, and dried in vacuum to obtain a nanocomposite polystyrene synthetic resin, i.e., a high-performance synthetic resin.

[0038] Example 4

[0039] Preparation of high-performance synthetic resin:

[0040] (1) 1 g of nanosilica was added to 150 mL of ethanol solvent and ultrasonically dispersed for 30 min, 0.6 mL of 3-aminopropyltriethoxysilane was continuously added, and after mixing, it was reacted in an oil bath at 80°C for 16 h. After the product was cooled, the solvent was evaporated using a rotary evaporator, and dried to obtain amino-modified silica;

[0041] (2) 20 mL of toluene solvent was added to the reactor, and 0.1 g of amino-modified silica was continuously added to the reactor and ultrasonically dispersed for 40 min to obtain a nanodispersion liquid;

[0042] (3) 0.03 g of dicyclohexyl carbodiimide and 0.004 g of 4-dimethylamino pyridine were added to 30 mL of toluene solvent, and after being fully dissolved, it was slowly added to the nanodispersion liquid in step (2), and stirred uniformly to obtain a mixed liquid;

[0043] (4) Weigh 10 g of the carboxyl-terminated adamantyl polystyrene prepared in Example 2, dissolve it in 450 mL of toluene, slowly add the mixed solution prepared in step (3) to it, transfer it to a water bath, and react at 35°C for 24 h. After the reaction is completed, filter the product, soak the filter cake in toluene, and continue to filter it for 3 times. Wash the product with deionized water, centrifuge, and vacuum dry to obtain a nano-composite polystyrene synthetic resin, i.e., a high-performance synthetic resin.

[0044] Example 5

[0045] Preparation of a high-performance synthetic resin:

[0046] (1) Add 1 g of montmorillonite to 150 mL of ethanol solvent, ultrasonically disperse it for 30 min, continue to add 0.6 mL of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, mix it, and then react it in an oil bath at 100°C for 16 h. After the product is cooled, evaporate the solvent using a rotary evaporator, and dry it to obtain amino-modified montmorillonite.

[0047] (2) Add 20 mL of toluene to a reactor, continue to add the amino-modified montmorillonite to the reactor, and ultrasonically disperse it for 40 min to obtain a nano-dispersion liquid.

[0048] (3) Add 0.03 g of dicyclohexyl carbodiimide and 0.004 g of 4-dimethylaminopyridine to 30 mL of toluene, dissolve them, slowly add them to the nano-dispersion liquid in step (2), and mix them to obtain a mixed solution.

[0049] (4) Weigh 10 g of the carboxyl-terminated adamantyl polystyrene prepared in Example 2, dissolve it in 450 mL of toluene, slowly add the mixed solution prepared in step (3) to it, transfer it to a water bath, and react at 35°C for 24 h. After the reaction is completed, filter the product, soak the filter cake in toluene, and continue to filter it for 3 times. Wash the product with deionized water, centrifuge, and vacuum dry to obtain a nano-composite polystyrene synthetic resin, i.e., a high-performance synthetic resin.

[0050] Example 6

[0051] Preparation of a high-performance synthetic resin:

[0052] (1) Add 1 g of attapulgite to 150 mL of ethanol solvent, ultrasonically disperse it for 30 min, continue to add 0.6 mL of N-aminoethyl-3-aminopropyltriethoxysilane, mix it, and then react it in an oil bath at 100°C for 16 h. After the product is cooled, evaporate the solvent using a rotary evaporator, and dry it to obtain amino-modified attapulgite.

[0053] (2) 20 mL of toluene solvent was added to the reactor, and the amino-modified attapulgite was continuously added into the reactor, ultrasonic dispersion was carried out for 40 min to obtain a nanodispersion;

[0054] (3) 0.03 g of dicyclohexyl carbodiimide and 0.004 g of 4-dimethylamino pyridine were added to 30 mL of toluene solvent, after being fully dissolved, the mixture was slowly added into the nanodispersion in step (2), and stirring was uniformly carried out to obtain a mixed solution;

[0055] (4) 10 g of the carboxyl-terminated adamantyl polystyrene prepared in example 2 of the application was weighed, and was fully dissolved in 450 mL of toluene solvent, the mixed solution prepared in step (3) was slowly added into the toluene solvent, and was transferred into a water bath pot, and was reacted at 35 DEG C for 24 h, after the reaction was completed, filtration was carried out, the filter cake was soaked with toluene, and filtration was continuously carried out, and the operation was repeated for 3 times, deionized water was used to wash the product, and after centrifugal separation and vacuum drying, a nanocomposite polystyrene synthetic resin, i.e. a high-performance synthetic resin was obtained.

[0056] Mechanical mechanical property test of the high-performance synthetic resin prepared in examples 2-6 of the application:

[0057] Tensile strength test: YN-DC-100 type tensile testing machine was used to test the tensile strength of the high-performance synthetic resin prepared in examples 2-6 of the application and the ordinary polystyrene resin, and the test standard was GB / T 528-1998.

[0058] Impact strength test: TSR type impact tester was used to test the impact strength of the high-performance synthetic resin prepared in examples 2-6 of the application and the ordinary polystyrene resin, and the standard was GB / T 1043-1993.

[0059] Flexural strength test: BLD type flexural tester was used to test the flexural strength of the high-performance synthetic resin prepared in examples 2-6 of the application and the ordinary polystyrene resin, and the test standard was GB / T 9341-2000.

[0060] The ordinary polystyrene resin is obtained by free radical polymerization of styrene under the initiation of azobisisobutyronitrile.

[0061]

[0062] The test results show that the addition of adamantyl groups in the polystyrene matrix can effectively enhance the mechanical mechanical properties of polystyrene, and in combination with the excellent effect of nanomaterials, the mechanical mechanical properties of polystyrene can be greatly enhanced, among which, the promotion effect of graphene is the largest, and the promotion effect of attapulgite is relatively small.

[0063] Heat resistance test of the high-performance synthetic resin prepared in examples 2-6 of the application:

[0064] The initial decomposition temperature of the high-performance synthetic resin prepared in the examples 2-6 and the ordinary polystyrene resin was tested by using a TG type thermal gravimetric differential thermal analyzer with a temperature rising rate of 10 DEG C / min from room temperature to 400 DEG C under the condition of a nitrogen flow rate of 40 mL / min.

[0065] Group Initial decomposition temperature (°C) Example 2 346.9 Example 3 362.4 Example 4 360.8 Example 5 351.0 Example 6 354.5 General polystyrene resin 340.2

[0066] The test results show that the adamantane group and the nanomaterial can synergistically improve the heat resistance of the polystyrene resin, and the initial decomposition temperature of the high-performance synthetic resin prepared by compounding the graphene and the adamantane-based polystyrene resin is 24.2 DEG C higher than that of the ordinary polystyrene resin.

[0067] The flame-retardant property test of the high-performance synthetic resin prepared in the examples 2-6:

[0068] The limiting oxygen index of the high-performance synthetic resin prepared in the examples 2-6 and the ordinary polystyrene resin was tested by using a JF type limiting oxygen index instrument, and the test standard was GB / T 2406-1993.

[0069]

[0070]

[0071] The test results show that the limiting oxygen index of the high-performance synthetic resin prepared by compounding the graphene and the adamantane-based polystyrene resin can reach 25.4%, which is 6.4% higher than that of the ordinary polystyrene resin, and the flame-retardant property of the polystyrene is effectively improved.

[0072] The above content is only an example and a description of the concept of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific examples, as long as the concept of the present application is not deviated or the scope defined by the present application is not exceeded, which shall belong to the protection scope of the present application.

Claims

1. A high performance synthetic resin, characterized in that, The preparation method of the high-performance synthetic resin comprises the following steps: The preparation method of the carboxyl-terminated adamantyl polystyrene comprises the following steps: 60-150 mL of ethanol solvent is added into a reactor, 10 g of adamantyl styrene, 0.3-0.6 g of mercaptoacetic acid and 0.02-0.05 g of azobisisobutyronitrile are weighed and added into the reactor and uniformly mixed, the mixture is placed in a water bath at 60-80 DEG C and reacted for 18-36 h under the protection of nitrogen, the reaction product is discharged after the reaction is completed, dried, extracted with a Soxhlet extractor for 24 h using water as the solvent, vacuum dried, and the carboxyl-terminated adamantyl polystyrene is obtained. The preparation method of the adamantyl styrene comprises the following steps: 80-200 mL of toluene solvent is added into a reactor, 0.8-1.5 g of 1-bromoadamantane, 2 g of styrene, 0.2-0.5 g of potassium carbonate and a palladium / carbon catalyst are weighed and added into the reactor, the mixture is uniformly stirred, the mixture is placed in an oil bath at 100-120 DEG C and refluxed for 12-36 h under the protection of nitrogen, the reaction product is filtered after the reaction is completed, washed with dichloromethane, the solvent is spin-dried, the product is washed and dried, and the adamantyl styrene is obtained. The adamantyl styrene has the following structural formula: The modified nanomaterial is covalently connected with the carboxyl-terminated adamantyl polystyrene to obtain the nanocomposite polystyrene synthetic resin, that is, the high-performance synthetic resin. ； The covalent connection comprises the following steps: (1) 10-30 mL of toluene solvent is added into a reactor, the modified nanomaterial is continuously added into the reactor, and the mixture is ultrasonically dispersed for 30-60 min to obtain a nanodispersion; (2) 0.03 g of dicyclohexyl carbodiimide and 0.004 g of 4-dimethylamino pyridine are added into 30 mL of toluene solvent, the mixture is fully dissolved, and then the mixture is slowly added into the nanodispersion in step (1) and uniformly stirred to obtain a mixed solution; (3) The carboxyl-terminated adamantyl polystyrene is fully dissolved in 200-450 mL of toluene solvent, the mixed solution prepared in step (2) is slowly added into the toluene solvent, and the mixture is transferred into a water bath and reacted for 12-24 h at 10-35 DEG C, the reaction product is filtered after the reaction is completed, the filter cake is soaked in toluene and then filtered, the filtering process is repeated for 2-3 times, the product is washed with deionized water, and the nanocomposite polystyrene synthetic resin, that is, the high-performance synthetic resin, is obtained through centrifugal separation and vacuum drying. The amount of the palladium / carbon catalyst is 20-30%.

2. A high performance synthetic resin according to claim 1, characterised in that, The nanomaterial can be any one of graphene oxide, nanosilica, montmorillonite and palygorskite.

3. The high performance synthetic resin according to claim 1, wherein The preparation steps of the modified nanomaterial comprise the following steps: 1 g of nanomaterial is added into 100-200 mL of ethanol solvent, the mixture is ultrasonically dispersed for 20-40 min, 0.4-0.8 mL of amino silane coupling agent is continuously added into the mixture, the mixture is uniformly mixed, and then the mixture is reacted in an oil bath at 80-100 DEG C for 6-18 h, the product is cooled, the solvent is evaporated by using a rotary evaporator, and the modified nanomaterial is obtained through vacuum drying.

4. The high performance synthetic resin according to claim 1, wherein ​ 5. A high performance synthetic resin according to claim 4, characterised in that, The amino silane coupling agent can be any one of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane or N-aminoethyl-3-aminopropyltriethoxysilane.

6. A high performance synthetic resin as claimed in claim 4, wherein, The mass ratio of the carboxyl-terminated adamantyl polystyrene and the amino-modified nanomaterial is 100:0.1-0.45.

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