CN112980217A - Modified GO-SiO2Preparation method of composite filler and application of composite filler in rubber - Google Patents

Modified GO-SiO2Preparation method of composite filler and application of composite filler in rubber Download PDF

Info

Publication number
CN112980217A
CN112980217A CN202110194737.1A CN202110194737A CN112980217A CN 112980217 A CN112980217 A CN 112980217A CN 202110194737 A CN202110194737 A CN 202110194737A CN 112980217 A CN112980217 A CN 112980217A
Authority
CN
China
Prior art keywords
modified
sio
composite filler
composite
aqueous solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110194737.1A
Other languages
Chinese (zh)
Other versions
CN112980217B (en
Inventor
丁国新
台洪旭
胡玉锋
程国君
逯全县
陈传鑫
吴敏敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Xinlu Transportation Development Co ltd
Anhui University of Science and Technology
Original Assignee
Jiangsu Xinlu Transportation Development Co ltd
Anhui University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Xinlu Transportation Development Co ltd, Anhui University of Science and Technology filed Critical Jiangsu Xinlu Transportation Development Co ltd
Priority to CN202110194737.1A priority Critical patent/CN112980217B/en
Publication of CN112980217A publication Critical patent/CN112980217A/en
Application granted granted Critical
Publication of CN112980217B publication Critical patent/CN112980217B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44Carbon
    • C09C1/46Graphite
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • C08K3/042Graphene or derivatives, e.g. graphene oxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/36Silica
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/04Ingredients treated with organic substances
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06Copolymers with styrene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06Treatment with inorganic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08Treatment with low-molecular-weight non-polymer organic compounds
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/21Attrition-index or crushing strength of granulates
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/22Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention belongs to the technical field of nano composite materials, and particularly relates to modified GO-SiO2Composite fillerThe invention provides a method for constructing modified Graphene Oxide (GO) -silicon dioxide (SiO)2) The composite filler solves the problems of GO and SiO2Poor dispersion effect in rubber and easy agglomeration, and endows the composite filler with anti-aging performance by modified GO. Firstly, modifying GO in one step by using an amino modifier through a hydrothermal method, wherein the modified GO is in a three-dimensional hole structure; then the silicon source is used for leading SiO to be processed by an in-situ growth method2The particles are deposited and interpenetrated on the surface of the modified GO and in the holes; preparing novel modified GO-SiO2Composite filler; the problem of agglomeration of the reinforcing filler can be effectively solved, the interaction between the filler and the filler is reduced, and the mechanical property and the ageing resistance of the rubber are improved.

Description

Modified GO-SiO2Preparation method of composite filler and application of composite filler in rubber
Technical Field
The invention relates to the technical field of nano composite materials, in particular to modified GO-SiO2A preparation method of the composite filler and application of the composite filler in rubber.
Background
Graphene is a carbonaceous material with a monolayer two-dimensional honeycomb lattice structure formed by tightly packing sp2 hybridized and connected carbon atoms. Graphene has an infinitely repeated periodic structure in a plane, has a nanoscale in a direction perpendicular to the plane, and can be regarded as a nano material with a macroscopic size. The graphene has high specific surface area, large aspect ratio, high modulus and good solvent dispersibility, and is a rubber reinforced filler with high potential. GO and graphene have similar structures and performances, a plurality of surface groups and low price, and become excellent fillers of polymers such as rubber and plastic, but GO is easy to cause the reduction of rubber performance in a polymer matrix due to aggregation.
SiO2As a reinforcing agent of the traditional rubber, the rubber has the characteristics of low rolling resistance and good wet skid resistance. But at the same time SiO2Dispersion in rubber is also a difficult problem because of the strong tendency to agglomerate due to the small particle size.
Disclosure of Invention
The invention aims to develop a modified GO-SiO2Composite filler, with emphasis on solving GO and SiO2Difficult dispersion in rubber, and at the same time, the reinforcing filler has an anti-ageing effect. According to the invention, the GO is modified into a three-dimensional pore structure by using a modifier, so that the specific surface area is increased; construction of modified GO-SiO by in-situ growth2Sol to SiO2Load and interpenetration are in modified GO hole structure, and the modifier endows GO with anti-aging performance, so that GO and SiO are prevented from being added into rubber to achieve a reinforcing effect2Agglomeration in a rubber matrix.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a modified GO-SiO2The preparation method of the composite filler comprises the following steps:
the method comprises the following steps: preparation of modified GO: firstly, mixing GO and water in a mass ratio of 1: (40-60) mixing to obtain a GO aqueous solution, and putting the GO aqueous solution into an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 35-40 kHz, the temperature is 25-30 ℃, and the ultrasonic time is 25-35min to obtain a GO aqueous solution with the concentration of 16-25 mg/ml; and then adding a modifier and ammonia water with the pH value of 10-11 into the GO aqueous solution, wherein the volume ratio of the modifier to the ammonia water to the GO aqueous solution is (5-7): (1-3): 25; magnetically stirring the mixture for 20min at the temperature of between 25 and 30 ℃, adding the mixture into a hydrothermal reaction kettle, reacting the mixture for 8 to 12h at the temperature of between 170 and 190 ℃, and cooling the mixture; and washing with deionized water for 3-5 times to remove unreacted modifier, and freeze-drying for 48h to obtain the modified GO.
Step two: preparation of modified GO-SiO2Composite filling: firstly, mixing the modified GO obtained in the step one with deionized water according to the mass ratio of 1: 1200, mixing to obtain a modified GO aqueous solution, placing the modified GO aqueous solution in an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 35-40 kHz, the temperature is 25-30 ℃, and the ultrasonic time is ultrasonicThe time is 25-35min, and modified GO aqueous solution with the concentration of 0.83mg/ml is prepared; and then, mixing a silicon source and the modified GO dispersion liquid according to the mass ratio of 1: 5, mixing to obtain a mixed solution, and then adding a surfactant, wherein the mass ratio of the surfactant to the modified GO dispersion liquid is 1: 500, mixing and pre-stirring for 20-30min, simultaneously keeping the constant temperature of the mixed solution at 0-5 ℃, and then adding 1mol/L of dilute hydrochloric acid, wherein the mass ratio of the silicon source to the dilute hydrochloric acid is 1: 2.5, stirring while dropwise adding for 4-6 h to form a gel substance to obtain the modified GO-SiO2Gelling; finally, standing and aging the obtained gel for 10-12 h, then performing vacuum filtration by using a suction filtration machine, and washing with deionized water for 5-10 times; drying the mixture in a blast drying oven at 80 ℃ for 5-8 h, and further crushing the dried powder to obtain modified GO-SiO2And (4) composite filling.
The modifier adopted in the first step of the invention is one or more of p-phenylenediamine, triethylene tetramine and tetraethylene pentamine.
The surfactant used in the second step of the invention is one or more of cetyl trimethyl ammonium bromide, sodium dodecyl benzene sulfonate and sodium dodecyl sulfonate.
The silicon source adopted in the second step of the invention is one or more of tetraethyl orthosilicate, sodium silicate water glass and potassium silicate water glass.
Modified GO-SiO2The application of the composite filler in the SSBR comprises the following raw materials in parts by mass: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO230 to 50phr of composite filler.
Modified GO-SiO2The application of the/SSBR composite material in the SSBR of the solution polymerized styrene-butadiene rubber comprises the following steps: the temperature of the torque rheometer is set to be 110 ℃, and the rotating speed of the rotor is 70 r/min; according to the formula, SSBR, stearic acid, zinc oxide and modified GO-SiO are sequentially added2Carrying out one-stage banburying on the composite filler and the environment-friendly aromatic oil, wherein the banburying time is 7min, the rubber discharging temperature is 140 ℃, and cooling for 4 h; then adding a scorch retarder, accelerators CZ, DM and sulfur into an open mill with the roll temperature of 60 DEG CPerforming two-stage mixing with sulfur, adjusting roller spacing to 0.8-1.0mm, making triangular bag, passing through for 7-8 times, adjusting roller spacing to 2-3mm, placing at room temperature for 12-24h, vulcanizing at 170 deg.C under 12MPa for 10min, and modifying GO-SiO2The amount of the composite filler was 45 phr.
Compared with the prior art, the invention provides a modified GO-SiO2The preparation method of the composite filler and the application of the composite filler in rubber have the following beneficial effects: the invention provides modified GO-SiO2The preparation method of the composite filler has simple system and process and is easy to expand. Modified GO-SiO2The preparation of the composite filler takes a modified GO aqueous solution and a silicon source as precursors, and the ratio of the silicon source to the GO, the type of a dispersing agent, the concentration of the GO aqueous solution and the like are controlled through the selection of a GO modifier, so that the porous three-dimensional nano carbon material with the nanometer size, the large specific surface area and the high porosity is prepared. The composite filler can be used as an excellent material to be applied to rubber reinforcement; in addition, the anti-aging modification of GO also enables the rubber to replace an anti-aging agent.
Drawings
FIG. 1 is a modified GO-SiO solid solution provided by the invention2Tensile profile of the solution polymerized styrene butadiene rubber composite when 45phr of composite particles was filled.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
The method comprises the following steps: preparation of modified GO: firstly, GO and water are mixed in a mass ratio of 1: 50 to obtain a GO aqueous solution, and putting the GO aqueous solution into an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 40kHz, the temperature is 25 ℃, and the ultrasonic time is 30min to obtain a GO aqueous solution with the concentration of 20 mg/ml; and then adding a modifier Tetraethylenepentamine (TEPA) and ammonia water with the pH value of 10-11 into the GO aqueous solution, wherein the volume ratio of TEPA to ammonia water to GO aqueous solution is 6: 2: 25; magnetically stirring at 25 deg.C for 20min, adding into hydrothermal reaction kettle, reacting at 180 deg.C for 10 hr, and cooling; and washing with deionized water for 5 times to remove unreacted TEPA, and freeze-drying for 48h to obtain the modified GO.
Step two: preparation of modified GO-SiO2Composite filling: firstly, mixing the modified GO obtained in the step one with deionized water according to the mass ratio of 1: 1200, obtaining a modified GO aqueous solution after mixing, and placing the modified GO aqueous solution in an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 40kHz, the temperature is 25 ℃, and the ultrasonic time is 30min, so as to obtain the modified GO aqueous solution with the concentration of 0.83 mg/ml; then, mixing potassium silicate water glass with a modulus of 3.3 and the modified GO dispersion liquid in a mass ratio of 1: 5, mixing to obtain a mixed solution, and adding sodium dodecyl benzene sulfonate (LAS), wherein the mass ratio of the LAS to the modified GO dispersion liquid is 1: 500, mixing and pre-stirring for 25min, simultaneously keeping the constant temperature of the mixed solution at 0-5 ℃, adding 1mol/L of dilute hydrochloric acid, wherein the mass ratio of the potassium silicate water glass to the dilute hydrochloric acid is 1: 2.5, stirring while dripping for 5h to form a gel-like substance to obtain the modified GO-SiO2Gelling; finally, standing and aging the obtained gel for 10 hours, then performing vacuum filtration by using a suction filtration machine, and washing the gel for 5 times by using deionized water; drying in a blast drying oven at 80 ℃ for 5h, and further crushing the dried powder to obtain modified GO-SiO2And (4) composite filling.
Modified GO-SiO2Application of composite filler in SSBR (styrene butadiene rubber) prepared by taking modified GO-SiO2The composite filler comprises the following rubber experimental formula and parts by weight: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO230phr of composite filler.
The temperature of the torque rheometer is set to be 110 ℃, and the rotating speed of the rotor is 70 r/min; according to the formula, SSBR, stearic acid, zinc oxide and modified GO-SiO are sequentially added2Carrying out one-stage banburying on the composite filler and the environment-friendly aromatic oil, wherein the banburying time is 7min, the rubber discharging temperature is 140 ℃, and cooling for 4 h; adding an anti-coking agent, an accelerant CZ, DM and sulfur on an open mill with a roll temperature of 60 ℃ for two-stage mixing, adjusting the roll spacing to be 0.8-1.0mm, packaging in a triangular bag, passing through for 7-8 times, adjusting the roll spacing to be 2-3mm, discharging, standing at room temperature for 12-24h, and standing at 170 ℃ under 12MPa × 10And vulcanizing under the min condition.
Example 2
The modified GO-SiO prepared in example 1 above was taken2The composite filler comprises the following rubber experimental formula and parts by weight: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO235phr of composite material.
According to the above formulation, a vulcanizate was prepared and tested for various basic properties according to the vulcanizate preparation method of example 1.
Example 3
The modified GO-SiO prepared in example 1 above was taken2The composite filler comprises the following rubber experimental formula and parts by weight: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO2Composite 40 phr.
According to the above formulation, a vulcanizate was prepared and tested for various basic properties according to the vulcanizate preparation method of example 1.
Example 4
The modified GO-SiO prepared in example 1 above was taken2The composite filler comprises the following rubber experimental formula and parts by weight: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO2Composite 45 phr.
According to the above formulation, a vulcanizate was prepared and tested for various basic properties according to the vulcanizate preparation method of example 1.
Example 5
The modified GO-SiO prepared in example 1 above was taken2The composite filler comprises the following rubber experimental formula and parts by weight: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO250phr of composite material.
According to the above formulation, a vulcanizate was prepared and tested for various basic properties according to the vulcanizate preparation method of example 1.
Comparative example 1
Preparation of GO-SiO2Composite filling: (1) mixing GO and deionized water in a mass ratio of 1: 1200, obtaining GO aqueous solution after mixing, and placing the GO aqueous solution in an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 40kHz, the temperature is 25 ℃, and the ultrasonic time is 30min, so as to obtain the GO aqueous solution with the concentration of 0.83 mg/ml; (2) mixing potassium silicate water glass with a modulus of 3.3 and GO dispersion liquid according to a mass ratio of 1: 5 mixing to obtain a mixed solution, and then adding LAS, wherein the mass ratio of LAS to GO dispersion liquid is 1: 500, mixing and pre-stirring for 25min, simultaneously keeping the constant temperature of the mixed solution at 0-5 ℃, adding 1mol/L of dilute hydrochloric acid, wherein the mass ratio of the potassium silicate water glass to the dilute hydrochloric acid is 1: 2.5, stirring while dripping for 5h to form a gel substance to obtain GO-SiO2Gelling; (3) standing and aging the obtained gel for 10h, then performing vacuum filtration by using a suction filtration machine, and washing with deionized water for 5 times; drying in a blast drying oven at 80 ℃ for 5h, and further crushing the dried powder to obtain GO-SiO2And (4) composite filling.
GO-SiO2Application of composite filler in SSBR (solid State biofilm reactor), namely GO-SiO prepared by the method2The composite filler comprises the following rubber experimental formula and parts by weight: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent, 0.1phr of GO-SiO2Composite 45 phr.
According to the above formulation, a vulcanizate was prepared and tested for various basic properties according to the vulcanizate preparation method of example 1.
Comparative example 2
Preparation of SiO2: (1) mixing potassium silicate water glass with a modulus of 3.3 and deionized water according to a mass ratio of 1: 5, mixing to obtain a mixed solution, and then adding LAS, wherein the mass ratio of LAS to deionized water is 1: 500, mixing and pre-stirring for 25min, simultaneously keeping the constant temperature of the mixed solution at 0-5 ℃, adding 1mol/L of dilute hydrochloric acid, wherein the mass ratio of the potassium silicate water glass to the dilute hydrochloric acid is 1: 2.5 stirring while dropping for 5h to form a gelTo obtain SiO2Gelling; (2) standing and aging the obtained gel for 10h, then performing vacuum filtration by using a suction filtration machine, and washing with deionized water for 5 times; drying in a forced air drying oven at 80 ℃ for 5h, and further crushing the dried powder to obtain SiO2And (4) filling.
SiO2Application in SSBR (single layer vacuum distillation) by taking the SiO prepared by the method2The rubber experiment formula and the parts by mass are as follows: 100phr of SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0.5 phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent, 0.1phr of SiO245phr。
According to the above formulation, a vulcanizate was prepared and tested for various basic properties according to the vulcanizate preparation method of example 1.
The mechanical property test of comparative examples 1-2 and examples 1-5 was carried out, and the test results are shown in Table 1:
TABLE 1 mechanical Properties of the rubber composites
Figure BDA0002946161600000091
As can be seen from Table 1, with the modification of GO-SiO2The tensile strength, elongation at break and tear strength of the SSBR composite materials of examples 1-5 increased with the increase of the number of filler parts, and the shore a hardness increased gradually. The improvement of the mechanical property is mainly due to the modified GO-SiO2The composite filler reacts with the rubber matrix to form better bonding force; and the decline is mainly due to the following modification of GO-SiO2The increase of the filling amount of the composite filler gradually reduces the dispersity in rubber, so that stress concentration and interface separation are easily generated in a performance test, and the external force resistance of the rubber is reduced under continuous load. When modified GO-SiO2When the composite material reaches 45phr, namely, when the composite material is obtained in example 4, the comprehensive mechanical property of the SSBR composite material is better. From the mechanical properties of comparative examples 1-2 and example 4, it can be seen that the modified GO-SiO2The mechanical property of the composite material reinforced rubber is obviously improved mainly due to the modified GO-SiO2Surface jointThe branched hydrophobic groups improve their dispersibility in rubber and compare to SiO2And GO-SiO2For the composite material, the unique reticular hole structure is combined with the rubber matrix more tightly, thereby improving the mechanical property of the rubber.
The aging resistance of comparative examples 1-2 and examples 1-5 was tested, and the test results are shown in Table 2:
TABLE 2 ageing resistance of rubber composites
Figure BDA0002946161600000092
Figure BDA0002946161600000101
Note: negative values indicate a decrease in the value after aging and positive values indicate an increase.
As can be seen from Table 2, the Shore A hardness, tensile strength and tear strength of the rubbers of examples 1-5 after thermo-oxidative aging tests (70 ℃ C.. times.72 h) all tended to increase and decrease with increasing filler fraction, indicating that the modified GO-SiO2The addition of the composite filler can improve the ageing resistance of the rubber composite material. Under the condition of thermo-oxidative aging, free radicals generated by rubber are captured by primary amine groups and secondary amine groups on the surface of the modified GO to initiate chain termination, so that the anti-aging effect is achieved; the trend is reduced due to the modified GO-SiO2The composite filler is agglomerated in rubber due to excessive addition amount, so that the filler is separated from a rubber interface, and the anti-aging effect is reduced; taken together, the best anti-aging effect is seen in example 4, namely modified GO-SiO2The composite filler worked the most well when filled at 45 phr. Comparative examples 1-2 compared to example 4, comparative examples 1-2 did not have the same mechanical properties as example 4 after aging, which is mainly SiO2And GO-SiO2The composite filler mainly plays a reinforcing effect in a rubber matrix, and the modified GO-SiO2The composite filler has a reinforcing effect, and the modified GO surface grafted groups can have an anti-aging effect and can keep good mechanical properties.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. Modified GO-SiO2The preparation method of the composite filler is characterized by comprising the following steps:
the method comprises the following steps: preparation of modified GO: firstly, GO and water are mixed in a mass ratio of 1: (40-60) mixing to obtain a GO aqueous solution, and putting the GO aqueous solution into an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 35-40 kHz, the temperature is 25-30 ℃, and the ultrasonic time is 25-35min to obtain the GO aqueous solution with the concentration of 16-25 mg/ml; and then adding a modifier and ammonia water with the pH = 10-11 into the GO aqueous solution, wherein the volume ratio of the modifier to the ammonia water to the GO aqueous solution is (5-7): (1-3): 25; magnetically stirring for 20min at 25-30 ℃, adding into a hydrothermal reaction kettle, reacting for 8-12 h at 170-190 ℃, and cooling; washing with deionized water for 3-5 times to remove unreacted modifier, and freeze-drying for 48h to obtain modified GO;
step two: preparation of modified GO-SiO2Composite filling: firstly, mixing the modified GO obtained in the step one with deionized water according to the mass ratio of 1: 1200, obtaining a modified GO aqueous solution after mixing, and placing the modified GO aqueous solution in an ultrasonic cleaning machine for ultrasonic dispersion, wherein the ultrasonic frequency is 35-40 kHz, the temperature is 25-30 ℃, and the ultrasonic time is 25-35min, so as to obtain a modified GO aqueous solution with the concentration of 0.83 mg/ml; and then, mixing a silicon source and the modified GO dispersion liquid according to the mass ratio of 1: 5, mixing to obtain a mixed solution, and then adding a surfactant, wherein the mass ratio of the surfactant to the modified GO dispersion liquid is 1: 500, mixing and pre-stirring for 20-30min, simultaneously keeping the constant temperature of the mixed solution at 0-5 ℃, and then adding 1mol/L of dilute hydrochloric acid, wherein the mass ratio of the silicon source to the dilute hydrochloric acid is 1: 2.5, stirring while dropwise adding for 4-6 h to form a gel substance to obtain the modified GO-SiO2Gelling; standing and aging the obtained gel for 10-12 h, and then performing reduced pressure pumping by using a pumping filterFiltering, and washing with deionized water for 5-10 times; drying the mixture in a blast drying oven at 80 ℃ for 5-8 h, and crushing the dried powder to obtain modified GO-SiO2And (4) composite filling.
2. The method according to claim 1, wherein the modifier used in the first step is one or more of p-phenylenediamine, triethylene tetramine, tetraethylene pentamine.
3. The method according to claim 1, wherein the surfactant used in the second step is one or more of cetyltrimethylammonium bromide, sodium dodecylbenzenesulfonate and sodium dodecylbenzenesulfonate.
4. The method according to claim 1, wherein the silicon source used in the second step is one or more of tetraethyl orthosilicate, sodium silicate water glass and potassium silicate water glass.
5. Modified GO-SiO2The application of the composite filler in the solution polymerized styrene butadiene rubber is characterized in that the composite filler comprises the following raw materials in parts by mass: 100phr of solution polymerized styrene butadiene rubber SSBR (SLR3402), 6phr of zinc oxide, 1phr of stearic acid, 0.7phr of accelerator CZ, 0.6phr of accelerator DM0, 2.5phr of sulfur, 5phr of environment-friendly aromatic oil (TDAE), 0.1phr of antiscorching agent and 0.1phr of modified GO-SiO230 to 50phr of composite filler.
6. A modified GO-SiO according to claim 52The application of the composite filler in the solution polymerized styrene butadiene rubber is characterized by comprising the following steps: the temperature of the torque rheometer is set to be 110 ℃, and the rotating speed of the rotor is 70 r/min; then sequentially adding SSBR, stearic acid, zinc oxide and modified GO-SiO2Carrying out one-stage banburying on the composite filler and the environment-friendly aromatic oil, wherein the banburying time is 7min, the rubber discharging temperature is 140 ℃, and cooling for 4 h; then adding an anti-coking agent, an accelerant CZ, a accelerant DM and sulfur on an open mill with the roll temperature of 60 ℃ for two-stage mixing, adjusting the roll spacing to be 0.8-1.0mm, packaging in a triangular bag, passing through for 7-8 times in a thin mode, adjusting the roll spacing to be 2-3mm, discharging,standing at room temperature for 12-24h, and vulcanizing at 170 deg.C under 12MPa for 10 min.
7. The modified GO-SiO of claim 52The application of the composite filler in the solution polymerized styrene butadiene rubber is characterized in that: modified GO-SiO2The amount of the composite filler was 45 phr.
CN202110194737.1A 2021-02-21 2021-02-21 Modified GO-SiO 2 Preparation method of composite filler and application of composite filler in rubber Active CN112980217B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110194737.1A CN112980217B (en) 2021-02-21 2021-02-21 Modified GO-SiO 2 Preparation method of composite filler and application of composite filler in rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110194737.1A CN112980217B (en) 2021-02-21 2021-02-21 Modified GO-SiO 2 Preparation method of composite filler and application of composite filler in rubber

Publications (2)

Publication Number Publication Date
CN112980217A true CN112980217A (en) 2021-06-18
CN112980217B CN112980217B (en) 2023-10-24

Family

ID=76394077

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110194737.1A Active CN112980217B (en) 2021-02-21 2021-02-21 Modified GO-SiO 2 Preparation method of composite filler and application of composite filler in rubber

Country Status (1)

Country Link
CN (1) CN112980217B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113667186A (en) * 2021-08-09 2021-11-19 安徽理工大学 DDM-GO @ SiO2Composite material, preparation method and application of prepared TPU
CN114044939A (en) * 2021-11-01 2022-02-15 山东理工大学 Preparation method of high-dispersion anti-aging nano filler for tire

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106854387A (en) * 2017-01-04 2017-06-16 华南理工大学 A kind of rubber antioxidant reduction and modified graphene oxide and preparation method and application
CN107022119A (en) * 2017-05-15 2017-08-08 北京化工大学 A kind of preparation method of graphene/silicon dioxide/rubber composite
CN107325328A (en) * 2017-06-15 2017-11-07 北京化工大学 A kind of preparation method of graphene/silicon dioxide compound particle
CN108424622A (en) * 2018-04-25 2018-08-21 南通海大新材料科技有限公司 A kind of modified graphene oxide/epoxy resin composite material and its preparation method and application
CN108530699A (en) * 2018-05-15 2018-09-14 四川大学 A kind of preparation method of polymer modification graphene composite material
CN109867830A (en) * 2019-01-16 2019-06-11 中国石油天然气股份有限公司 Anti-aging nitrile butadiene rubber/o-phenylenediamine modified graphene oxide composite material
CN110117390A (en) * 2019-05-23 2019-08-13 河北科技大学 A kind of graphene oxide modified anti-aging agent, thermo oxidative aging rubber and preparation method comprising it
CN110283369A (en) * 2019-05-27 2019-09-27 江苏大学 Heat oxygen aging resistance epoxy natural rubber nanocomposite and preparation method thereof
CN111690186A (en) * 2020-06-23 2020-09-22 扬州华通橡塑有限公司 High-wear-resistance and impact-resistant composite rubber and preparation method thereof
CN111978737A (en) * 2020-08-17 2020-11-24 绍兴市卓诚新材料有限公司 Heat-conducting insulating silicon rubber thermoplastic elastic composite material and preparation method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106854387A (en) * 2017-01-04 2017-06-16 华南理工大学 A kind of rubber antioxidant reduction and modified graphene oxide and preparation method and application
CN107022119A (en) * 2017-05-15 2017-08-08 北京化工大学 A kind of preparation method of graphene/silicon dioxide/rubber composite
CN107325328A (en) * 2017-06-15 2017-11-07 北京化工大学 A kind of preparation method of graphene/silicon dioxide compound particle
CN108424622A (en) * 2018-04-25 2018-08-21 南通海大新材料科技有限公司 A kind of modified graphene oxide/epoxy resin composite material and its preparation method and application
CN108530699A (en) * 2018-05-15 2018-09-14 四川大学 A kind of preparation method of polymer modification graphene composite material
CN109867830A (en) * 2019-01-16 2019-06-11 中国石油天然气股份有限公司 Anti-aging nitrile butadiene rubber/o-phenylenediamine modified graphene oxide composite material
CN110117390A (en) * 2019-05-23 2019-08-13 河北科技大学 A kind of graphene oxide modified anti-aging agent, thermo oxidative aging rubber and preparation method comprising it
CN110283369A (en) * 2019-05-27 2019-09-27 江苏大学 Heat oxygen aging resistance epoxy natural rubber nanocomposite and preparation method thereof
CN111690186A (en) * 2020-06-23 2020-09-22 扬州华通橡塑有限公司 High-wear-resistance and impact-resistant composite rubber and preparation method thereof
CN111978737A (en) * 2020-08-17 2020-11-24 绍兴市卓诚新材料有限公司 Heat-conducting insulating silicon rubber thermoplastic elastic composite material and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113667186A (en) * 2021-08-09 2021-11-19 安徽理工大学 DDM-GO @ SiO2Composite material, preparation method and application of prepared TPU
CN114044939A (en) * 2021-11-01 2022-02-15 山东理工大学 Preparation method of high-dispersion anti-aging nano filler for tire
CN114044939B (en) * 2021-11-01 2023-03-31 山东理工大学 Preparation method of high-dispersion anti-aging nano filler for tire

Also Published As

Publication number Publication date
CN112980217B (en) 2023-10-24

Similar Documents

Publication Publication Date Title
CN112980217B (en) Modified GO-SiO 2 Preparation method of composite filler and application of composite filler in rubber
CN113462040B (en) Preparation method of graphene-silicon dioxide modified natural rubber composite material with high thermal conductivity and excellent low-thermophysical property for tire
CN110240746B (en) Anti-slip thermal-aging-resistant EVA (ethylene-vinyl acetate copolymer) and NR (NR) composite foaming material and preparation method thereof
CN108610511A (en) A kind of functionalization two-dimensional layer transition metal carbide material f-MXene and preparation method thereof and the application in rubber
CN100491452C (en) Silane coupling agent modified clay and butadiene styrene rubber nanometer composite material preparation method
CN114591636B (en) Vulcanizing agent modified graphene prepared by chemical in-situ deposition process and controllable crosslinked natural rubber composite material thereof
CN105037821A (en) Natural rubber modification method based on graphene modification technology
CN113929341B (en) Nano crystal seed ultra-early strength agent suitable for low-temperature environment and preparation method thereof
CN114716737B (en) Preparation method of silicon dioxide/graphene modified rubber composite material
CN111171410A (en) Modified white carbon black reinforced rubber tire material and preparation method thereof
CN115073826A (en) High-wear-resistance graphene modified natural rubber and preparation method thereof
JP5529909B2 (en) Composite, rubber composition and pneumatic tire
CN109796790A (en) Modified MXenes of a kind of ion insertion agent and preparation method thereof and the application in rubber
CN110387105B (en) High-filling graphene oxide/resin hybrid and preparation method and application thereof
JP6869592B2 (en) Inorganic composite for rubber reinforcement, manufacturing method thereof, and rubber composition for tires containing the same.
CN108219195B (en) Graphene oxide compound for melt processing and preparation method thereof
CN114524978B (en) Chitosan/silicon dioxide nano hybrid material and biomimetic mineralization preparation method and application thereof
CN117247639A (en) Tire inner liner rubber composition containing bio-based modified cracking carbon black, mixing method and tire
JP5860661B2 (en) Method for producing silica and rubber composition for tire
CN110734593B (en) Method for preparing emulsion polymerized styrene butadiene rubber from modified graphene
CN114921236B (en) Self-repairing interactive network structure gel based on nanomaterial association and preparation method and application thereof
CN113773556B (en) Double-component composite reinforcing agent for hydrogenated nitrile rubber and preparation method thereof
CN114539615B (en) Graphene/magnesium silicate composite material, preparation method thereof and application thereof in EVA (ethylene-vinyl acetate) and rubber composite foam material
WO2023108344A1 (en) White carbon black for use in green tire and preparation method therefor
CN110734521B (en) Method for in-situ reinforcement of emulsion polymerized styrene butadiene rubber by modified carbon nano tube

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant