CN114085515B - Heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres - Google Patents
Heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres Download PDFInfo
- Publication number
- CN114085515B CN114085515B CN202111263947.8A CN202111263947A CN114085515B CN 114085515 B CN114085515 B CN 114085515B CN 202111263947 A CN202111263947 A CN 202111263947A CN 114085515 B CN114085515 B CN 114085515B
- Authority
- CN
- China
- Prior art keywords
- parts
- weight
- resistant
- alumina hollow
- flame
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
- C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2409/02—Copolymers with acrylonitrile
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
The invention belongs to the technical field of tires, and particularly discloses a heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres, which is prepared from the following raw materials in parts by weight: 10-80 parts of polyurethane resin, 8-25 parts of nano inorganic mullite alumina hollow microspheres, 8-25 parts of an auxiliary agent, 10-22 parts of nitrile butadiene rubber, 5-20 parts of diphenylmethane diisocyanate, 6-10 parts of carbon black, 2-6 parts of modified graphene, 0.8-3 parts of an anti-aging agent, 0.5-3 parts of a coupling agent and 0.5-3 parts of a foaming agent. The tire has good wear resistance and flame retardant property, is low in cost and has good application prospect; according to the invention, the nano inorganic mullite alumina hollow microspheres and the modified graphene are added into the formula system, so that the wear resistance and the flame retardant property of the tire can be obviously improved.
Description
Technical Field
The invention relates to the technical field of tires, in particular to a heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres.
Background
The tyre is one of the important parts of the automobile, is directly contacted with the road surface, and is used for relieving the impact on the automobile when the automobile runs together with the automobile suspension, so that the automobile is ensured to have good riding comfort and running smoothness.
With the development of the automobile industry, the performance requirements of tires are higher and higher, and the tire treads are easy to pollute the environment after being worn and detached. The wear resistance is an important index for evaluating the quality of the tire, the wear resistance of the automobile tire is poor, the service life of the automobile tire is greatly reduced, certain potential safety hazards are brought, and particularly, in rainy and snowy days, the tire is worn to cause skidding, and great potential safety hazards exist.
Disclosure of Invention
The invention provides a heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres, which has good wear-resistant and flame-retardant properties.
The invention adopts the following technical scheme for solving the technical problems:
a heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres is prepared from the following raw materials in parts by weight: 10 to 80 parts of polyurethane resin, 8 to 25 parts of nano inorganic mullite alumina hollow microspheres, 8 to 25 parts of auxiliary agent, 10 to 22 parts of nitrile rubber, 5 to 20 parts of diphenylmethane diisocyanate, 6 to 10 parts of carbon black, 2 to 6 parts of modified graphene, 0.8 to 3 parts of anti-aging agent, 0.5 to 3 parts of coupling agent and 0.5 to 3 parts of foaming agent.
As a preferable scheme, the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres is prepared from the following raw materials in parts by weight: 12 to 80 parts of polyurethane resin, 10 to 25 parts of nano inorganic mullite alumina hollow microspheres, 10 to 25 parts of auxiliary agent, 10 to 20 parts of nitrile rubber, 6 to 20 parts of diphenylmethane diisocyanate, 6 to 9 parts of carbon black, 3 to 6 parts of modified graphene, 1 to 3 parts of anti-aging agent, 1 to 3 parts of coupling agent and 1 to 3 parts of foaming agent.
As a preferable scheme, the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres is prepared from the following raw materials in parts by weight: 46.7 parts of polyurethane resin, 15 parts of nano inorganic mullite alumina hollow microspheres, 18 parts of auxiliary agent, 14 parts of nitrile rubber, 10 parts of diphenylmethane diisocyanate, 7 parts of carbon black, 5 parts of modified graphene, 1.6 parts of anti-aging agent, 1.5 parts of coupling agent and 1.2 parts of foaming agent.
As a preferable scheme, the preparation method of the nano inorganic mullite alumina hollow microsphere comprises the following steps:
s1, adding 35 to 50 parts by weight of mullite, 25 to 35 parts by weight of alumina, 10 to 20 parts by weight of silica, 5 to 10 parts by weight of calcium carbonate and 2 to 5 parts by weight of borax into a ball mill, and carrying out ball milling uniformly at the rotating speed of 500 to 800rpm to obtain mixed powder;
s2, adding 8 to 20 parts by weight of the mixed powder into 30 to 50 parts by weight of deionized water, then adding 0.5 to 1 part by weight of sodium dodecyl benzene sulfonate, uniformly stirring to obtain slurry, and pumping the slurry into a centrifugal spray dryer for spray granulation to obtain a granulated substance;
s3, sintering the granules at 850-1000 ℃ for 40-70min, and then sintering at 1300-1600 ℃ for 30-60min to obtain a precursor;
s4, adding 8 to 20 parts by weight of the precursor, 0.4 to 1.2 parts by weight of 3-acetoxypropyl trimethoxy silane and 0.8 to 2 parts by weight of boric acid into 60 to 90 parts by weight of deionized water, and uniformly dispersing to obtain a mixed solution; and adding 4 to 10 parts by weight of rare earth nitrate into the mixed solution, uniformly dispersing, filtering and drying to obtain the nano inorganic mullite alumina hollow microspheres.
As a preferable scheme, the spray granulation in the step S2 specifically includes: the inlet temperature of hot air is 85-95 ℃, the outlet temperature is 55-70 ℃, and the inlet air quantity is 120-150 m 3 H, outlet air volume of 150-200 m 3 The rotation speed is 12000 to 16000r/min.
As a preferable scheme, the rare earth nitrate is prepared by mixing cerium nitrate and lanthanum nitrate according to a weight ratio of 1:0.5 to 2.
As a preferable scheme, the preparation method of the modified graphene comprises the following steps:
s11, adding 1 to 2 parts by weight of sunflower-based trimethoxy silane and 3 to 10 parts by weight of Lewis acid into 70 to 100 parts by weight of absolute ethanol, uniformly dispersing, adding 6 to 15 parts by weight of graphene, stirring at the rotating speed of 400 to 1000rpm at the temperature of 60 to 90 ℃ for 2 to 6 hours, filtering, and drying to obtain pretreated graphene;
s2, adding 5-12 parts by weight of pretreated graphene into 60-100 parts by weight of oleic acid, stirring at the rotating speed of 200-600rpm for 30-80min, then adding 2-8 parts by weight of hexadecyl trimethyl ammonium bromide and 2-6 parts by weight of silica sol, stirring at the rotating speed of 300-800rpm for 1-4h at 65-80 ℃, filtering, and drying to obtain the modified graphene.
As a preferred embodiment, the lewis acid is boron trifluoride.
Preferably, the antioxidant is antioxidant 4020.
As a preferred embodiment, the coupling agent is KH550.
As a preferred scheme, the foaming agent is a foaming agent OBSH-75.
As a preferable scheme, the auxiliary agent comprises 0.8 to 2 parts by weight of sulfur, 0.5 to 1.2 parts by weight of accelerator, 2 to 5 parts by weight of stearic acid and 2 to 6 parts by weight of activator.
As a preferred embodiment, the accelerator is accelerator TMTD.
As a preferred embodiment, the activator is zinc carbonate.
The invention has the beneficial effects that: the tire has good wear resistance and flame retardant property, is low in cost and has good application prospect; according to the invention, the nano inorganic mullite alumina hollow microspheres and the modified graphene are added into the formula system, and the addition of the nano inorganic mullite alumina hollow microspheres and the modified graphene can obviously improve the wear resistance and the flame retardance of the tire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the parts are all parts by weight unless otherwise specified.
Example 1
A heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres is prepared from the following raw materials in parts by weight: 46.7 parts of polyurethane resin (German Basff S95A thermoplastic elastomer rubber), 15 parts of nano inorganic mullite alumina hollow microspheres, 18 parts of auxiliary agent, 14 parts of nitrile rubber, 10 parts of diphenylmethane diisocyanate, 7 parts of carbon black, 5 parts of modified graphene, 1.6 parts of anti-aging agent 4020, 1.5 parts of coupling agent KH550 and 1.2 parts of foaming agent OBSH-75.
The auxiliary agent comprises 1.5 parts by weight of sulfur, 1 part by weight of promoter TMTD, 3 parts by weight of stearic acid and 4.5 parts by weight of zinc carbonate.
The preparation method of the nano inorganic mullite alumina hollow microsphere comprises the following steps:
s1, adding 40 parts by weight of mullite, 32 parts by weight of alumina, 16 parts by weight of silicon dioxide, 8 parts by weight of calcium carbonate and 4 parts by weight of borax into a ball mill, and uniformly ball-milling at the rotating speed of 600rpm to obtain mixed powder;
s2, adding 10 parts by weight of mixed powder into 39.2 parts by weight of deionized water, adding 0.8 part by weight of sodium dodecyl benzene sulfonate, uniformly stirring to obtain slurry, pumping the slurry into a centrifugal spray dryer for spray granulation, wherein the spray granulation specifically comprises the following steps: the inlet temperature of hot air is 90 ℃, the outlet temperature is 65 ℃, and the inlet air quantity is 140m 3 H, outlet air volume 180m 3 H, rotating speed is 15000r/min, and granulating materials are obtained;
s3, sintering the granules at 900 ℃ for 60min, and then sintering at 1450 ℃ for 50min to obtain a precursor;
s4, adding 15 parts by weight of precursor, 1 part by weight of 3-acetoxypropyl trimethoxy silane and 1.5 parts by weight of boric acid into 82.5 parts by weight of deionized water, and uniformly dispersing to obtain a mixed solution; and adding 8 parts by weight of rare earth nitrate into the mixed solution, uniformly dispersing, filtering and drying to obtain the nano inorganic mullite alumina hollow microspheres.
The rare earth nitrate is prepared from cerium nitrate and lanthanum nitrate according to the weight ratio of 1: 1.
The preparation method of the modified graphene comprises the following steps:
s11, adding 1.2 parts by weight of n-decyl trimethoxy silane and 6 parts by weight of boron trifluoride into 82.8 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 10 parts by weight of graphene, stirring at 80 ℃ and 800rpm for 4 hours, filtering, and drying to obtain pretreated graphene;
s2, adding 10 parts by weight of pretreated graphene into 81 parts by weight of oleic acid, stirring at the rotating speed of 400rpm for 60min, adding 4 parts by weight of hexadecyl trimethyl ammonium bromide and 5 parts by weight of silica sol, stirring at the rotating speed of 500rpm at 70 ℃ for 2h, filtering and drying to obtain the modified graphene.
The preparation method of the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres comprises the following steps:
(1) Uniformly mixing the nano inorganic mullite alumina hollow microspheres, the auxiliary agent and the carbon black, and then adding a coupling agent KH550 for uniform mixing to obtain a first mixture;
(2) Mixing polyurethane resin, an anti-aging agent 4020, nitrile rubber, modified graphene, a foaming agent OBSH-75 and diphenylmethane diisocyanate to obtain a second mixture;
(3) Blending the first mixture and the second mixture to obtain glue;
(4) And (3) casting the glue into a mould, and molding to obtain the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres.
Example 2
A heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres is prepared from the following raw materials in parts by weight: 40.5 parts of polyurethane resin (German Pasv S95A thermoplastic elastomer rubber), 12 parts of nano inorganic mullite alumina hollow microspheres, 20 parts of auxiliary agent, 18 parts of nitrile rubber, 14 parts of diphenylmethane diisocyanate, 8 parts of carbon black, 3 parts of modified graphene, 2 parts of anti-aging agent 4020, 1 part of coupling agent KH550 and 1.5 parts of foaming agent OBSH-75.
The auxiliary agent comprises 1.2 parts by weight of sulfur, 0.8 part by weight of promoter TMTD, 3 parts by weight of stearic acid and 5 parts by weight of zinc carbonate.
The preparation method of the nano inorganic mullite alumina hollow microsphere comprises the following steps:
s1, adding 35 parts by weight of mullite, 25 parts by weight of alumina, 10 parts by weight of silicon dioxide, 5 parts by weight of calcium carbonate and 5 parts by weight of borax into a ball mill, and uniformly ball-milling at the rotating speed of 600rpm to obtain mixed powder;
s2, adding 15 parts by weight of mixed powder into 30 parts by weight of deionized water, adding 0.8 part by weight of sodium dodecyl benzene sulfonate, uniformly stirring to obtain slurry, and pumping the slurry into a centrifugal spray dryer for spray granulation, wherein the spray granulation specifically comprises the following steps: the inlet temperature of hot air is 90 ℃, the outlet temperature is 65 ℃, and the inlet air quantity is 140m 3 H, outlet air volume 180m 3 H, rotating speed is 15000r/min, and granulating materials are obtained;
s3, sintering the granules at 950 ℃ for 50min, and then sintering at 1500 ℃ for 40min to obtain a precursor;
s4, adding 15 parts by weight of precursor, 1 part by weight of 3-acetoxypropyl trimethoxy silane and 1.5 parts by weight of boric acid into 82.5 parts by weight of deionized water, and uniformly dispersing to obtain a mixed solution; and adding 8 parts by weight of rare earth nitrate into the mixed solution, uniformly dispersing, filtering and drying to obtain the nano inorganic mullite alumina hollow microspheres.
The rare earth nitrate is prepared from cerium nitrate and lanthanum nitrate according to the weight ratio of 1: 1.
The preparation method of the modified graphene comprises the following steps:
s11, adding 1.4 parts by weight of n-decyl trimethoxy silane and 8 parts by weight of boron trifluoride into 80.6 parts by weight of absolute ethyl alcohol, uniformly dispersing, adding 10 parts by weight of graphene, stirring at the temperature of 70 ℃ and the rotating speed of 800rpm for 4 hours, filtering, and drying to obtain pretreated graphene;
s2, adding 8 parts by weight of pretreated graphene into 86 parts by weight of oleic acid, stirring at the rotating speed of 500rpm for 50min, adding 4 parts by weight of hexadecyl trimethyl ammonium bromide and 4 parts by weight of silica sol, stirring at the rotating speed of 500rpm at 70 ℃ for 3h, filtering, and drying to obtain the modified graphene.
The preparation method of the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres comprises the following steps:
(1) Uniformly mixing the nano inorganic mullite alumina hollow microspheres, the auxiliary agent and the carbon black, and then adding a coupling agent KH550 for uniform mixing to obtain a first mixture;
(2) Blending polyurethane resin, an anti-aging agent 4020, nitrile rubber, modified graphene, a foaming agent OBSH-75 and diphenylmethane diisocyanate to obtain a second mixture;
(3) Blending the first mixture and the second mixture to obtain glue;
(4) And (3) casting the glue into a mould, and molding to obtain the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres.
Example 3
A heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres is prepared from the following raw materials in parts by weight: 60 parts of polyurethane resin, 12 parts of nano inorganic mullite alumina hollow microspheres, 20 parts of an auxiliary agent, 15 parts of nitrile rubber, 10 parts of diphenylmethane diisocyanate, 7 parts of carbon black, 3.5 parts of modified graphene, 1.5 parts of an anti-aging agent 4020, 0.8 part of a coupling agent KH550 and 1.2 parts of a foaming agent OBSH-75.
The auxiliary agent comprises 1 part by weight of sulfur, 0.8 part by weight of accelerator TMTD, 3.2 parts by weight of stearic acid and 5 parts by weight of zinc carbonate.
The preparation method of the nano inorganic mullite alumina hollow microsphere comprises the following steps:
s1, adding 45 parts by weight of mullite, 28 parts by weight of alumina, 15 parts by weight of silica, 7 parts by weight of calcium carbonate and 3 parts by weight of borax into a ball mill, and uniformly ball-milling at the rotating speed of 700rpm to obtain mixed powder;
s2, adding 15 parts by weight of mixed powder into 34.4 parts by weight of deionized water, adding 0.6 part by weight of sodium dodecyl benzene sulfonate, uniformly stirring to obtain slurry, pumping the slurry into a centrifugal spray dryer for spray granulation, wherein the spray granulation specifically comprises the following steps: the inlet temperature of hot air is 90 ℃, the outlet temperature is 65 ℃, and the inlet air quantity is 140m 3 H, outlet air volume 180m 3 H, rotating speed is 15000r/min, and granulating materials are obtained;
s3, sintering the granules at 980 ℃ for 50min, and then sintering at 1450 ℃ for 40min to obtain a precursor;
s4, adding 15 parts by weight of precursor, 1 part by weight of 3-acetoxypropyl trimethoxy silane and 1.5 parts by weight of boric acid into 82.5 parts by weight of deionized water, and uniformly dispersing to obtain a mixed solution; and adding 8 parts by weight of rare earth nitrate into the mixed solution, uniformly dispersing, filtering and drying to obtain the nano inorganic mullite alumina hollow microspheres.
The rare earth nitrate is prepared from cerium nitrate and lanthanum nitrate according to a weight ratio of 1: 1.
The preparation method of the modified graphene comprises the following steps:
s11, adding 1.8 parts by weight of n-decyl trimethoxy silane and 6 parts by weight of Lewis acid into 80 parts by weight of absolute ethanol, uniformly dispersing, adding 12.2 parts by weight of graphene, stirring at the rotating speed of 500rpm at 80 ℃ for 5 hours, filtering, and drying to obtain pretreated graphene;
s2, adding 8 parts by weight of pretreated graphene into 79 parts by weight of oleic acid, stirring at the rotating speed of 500rpm for 60min, adding 8 parts by weight of hexadecyl trimethyl ammonium bromide and 5 parts by weight of silica sol, stirring at the rotating speed of 400rpm at 70 ℃ for 3h, filtering, and drying to obtain the modified graphene.
The preparation method of the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres comprises the following steps:
(1) Uniformly mixing the nano inorganic mullite alumina hollow microspheres, the auxiliary agent and the carbon black, and then adding a coupling agent KH550 for uniform mixing to obtain a first mixture;
(2) Blending polyurethane resin, an anti-aging agent 4020, nitrile rubber, modified graphene, a foaming agent OBSH-75 and diphenylmethane diisocyanate to obtain a second mixture;
(3) Blending the first mixture and the second mixture to obtain glue;
(4) And (3) casting the glue into a mould, and molding to obtain the heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres.
Comparative example 1
Comparative example 1 is different from example 1 in that comparative example 1 does not contain the nano inorganic mullite alumina hollow beads, and the rest is the same.
Comparative example 2
Comparative example 2 is different from example 1 in that comparative example 2 uses hollow glass beads instead of the nano inorganic mullite alumina hollow beads, and the rest is the same.
Comparative example 3
Comparative example 3 is different from example 1 in that the preparation method of the nano inorganic mullite alumina hollow microspheres described in comparative example 3 is different from example 1, and the other steps are the same.
In the comparative example, the hollow microspheres of nano inorganic mullite alumina were obtained after granulation and sintering.
The preparation method of the nano inorganic mullite alumina hollow microsphere comprises the following steps:
s1, adding 40 parts by weight of mullite, 32 parts by weight of alumina, 16 parts by weight of silicon dioxide, 8 parts by weight of calcium carbonate and 4 parts by weight of borax into a ball mill, and uniformly ball-milling at the rotating speed of 600rpm to obtain mixed powder;
s2, adding 10 parts by weight of mixed powder into 39.2 parts by weight of deionized water, adding 0.8 part by weight of sodium dodecyl benzene sulfonate, uniformly stirring to obtain slurry, pumping the slurry into a centrifugal spray dryer for spray granulation, wherein the spray granulation specifically comprises the following steps: the inlet temperature of hot air is 90 ℃, the outlet temperature is 65 ℃, and the inlet air quantity is 140m 3 H, outlet air volume 180m 3 The rotation speed is 15000r/min to obtain granules;
s3, sintering the granules at 900 ℃ for 60min, and then sintering the granules at 1450 ℃ for 50min to obtain the nano inorganic mullite alumina hollow microspheres.
Comparative example 4
Comparative example 4 is different from example 1 in that comparative example 4 does not contain the modified graphene, and the others are the same.
Comparative example 5
Comparative example 5 is different from example 1 in that comparative example 5 uses graphene instead of modified graphene, and the others are the same.
TABLE 1 Performance test
As can be seen from Table 1, the tires according to the present invention have good wear resistance and flame resistance.
As can be seen from comparison of examples 1 to 3, different formula ratios and preparation parameters of the modifier can influence wear resistance and flame retardance, wherein example 1 is the best mode.
Compared with the comparative examples 1 to 3, the nano inorganic mullite alumina hollow microsphere disclosed by the invention can obviously improve the wear-resisting and flame-retardant properties, and compared with the hollow glass microsphere, the nano inorganic mullite alumina hollow microsphere can obviously improve the wear-resisting and flame-retardant properties, and the nano inorganic mullite alumina hollow microsphere prepared by different preparation methods of the nano inorganic mullite alumina hollow microsphere is different from the nano inorganic mullite alumina hollow microsphere prepared by the preparation method disclosed by the invention, so that the wear-resisting and flame-retardant properties can be obviously improved.
Comparing example 1 with comparative examples 4 and 5, it can be seen that the modified graphene provided by the invention can significantly improve wear resistance and flame retardant property.
In light of the foregoing description of preferred embodiments according to the invention, it is clear that many changes and modifications can be made by the person skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres is characterized by being prepared from the following raw materials in parts by weight: 10-80 parts of polyurethane resin, 8-25 parts of nano inorganic mullite alumina hollow microspheres, 8-25 parts of an auxiliary agent, 10-22 parts of nitrile butadiene rubber, 5-20 parts of diphenylmethane diisocyanate, 6-10 parts of carbon black, 2-6 parts of modified graphene, 0.8-3 parts of an anti-aging agent, 0.5-3 parts of a coupling agent and 0.5-3 parts of a foaming agent;
the preparation method of the nano inorganic mullite alumina hollow microsphere comprises the following steps:
s1, adding 35 to 50 parts by weight of mullite, 25 to 35 parts by weight of alumina, 10 to 20 parts by weight of silicon dioxide, 5 to 10 parts by weight of calcium carbonate and 2 to 5 parts by weight of borax into a ball mill, and uniformly ball-milling at the rotating speed of 500 to 800rpm to obtain mixed powder;
s2, adding 8-20 parts by weight of the mixed powder into 30-50 parts by weight of deionized water, adding 0.5-1 part by weight of sodium dodecyl benzene sulfonate, uniformly stirring to obtain slurry, and pumping the slurry into a centrifugal spray dryer for spray granulation to obtain a granulated substance;
s3, sintering the granules at 850-1000 ℃ for 40-70min, and then sintering at 1300-1600 ℃ for 30-60min to obtain a precursor;
s4, adding 8 to 20 parts by weight of the precursor, 0.4 to 1.2 parts by weight of 3-acetoxypropyl trimethoxy silane and 0.8 to 2 parts by weight of boric acid into 60 to 90 parts by weight of deionized water, and uniformly dispersing to obtain a mixed solution; adding 4 to 10 parts by weight of rare earth nitrate into the mixed solution, uniformly dispersing, filtering and drying to obtain nano inorganic mullite alumina hollow microspheres;
the preparation method of the modified graphene comprises the following steps:
s11, adding 1 to 2 parts by weight of n-decyltrimethoxysilane and 3 to 10 parts by weight of Lewis acid into 70 to 100 parts by weight of absolute ethanol, uniformly dispersing, adding 6 to 15 parts by weight of graphene, stirring at the rotating speed of 400 to 1000rpm at the temperature of 60 to 90 ℃ for 2 to 6 hours, filtering, and drying to obtain pretreated graphene;
s2, adding 5-12 parts by weight of pretreated graphene into 60-100 parts by weight of oleic acid, stirring at the rotating speed of 200-600rpm for 30-80min, then adding 2-8 parts by weight of hexadecyl trimethyl ammonium bromide and 2-6 parts by weight of silica sol, stirring at the rotating speed of 300-800rpm for 1-4h at 65-80 ℃, filtering, and drying to obtain modified graphene;
the auxiliary agent comprises 0.8 to 2 weight parts of sulfur, 0.5 to 1.2 weight parts of accelerator, 2 to 5 weight parts of stearic acid and 2 to 6 weight parts of activator.
2. The heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microsphere as claimed in claim 1 is characterized by being prepared from the following raw materials in parts by weight: 12-80 parts of polyurethane resin, 10-25 parts of nano inorganic mullite alumina hollow microspheres, 10-25 parts of an auxiliary agent, 10-20 parts of nitrile butadiene rubber, 6-20 parts of diphenylmethane diisocyanate, 6-9 parts of carbon black, 3-6 parts of modified graphene, 1-3 parts of an anti-aging agent, 1-3 parts of a coupling agent and 1-3 parts of a foaming agent.
3. The heat-resistant, flame-retardant and wear-resistant tire containing the nano inorganic mullite alumina hollow microspheres as claimed in claim 1 is characterized by being prepared from the following raw materials in parts by weight: 46.7 parts of polyurethane resin, 15 parts of nano inorganic mullite alumina hollow microspheres, 18 parts of auxiliary agent, 14 parts of nitrile rubber, 10 parts of diphenylmethane diisocyanate, 7 parts of carbon black, 5 parts of modified graphene, 1.6 parts of anti-aging agent, 1.5 parts of coupling agent and 1.2 parts of foaming agent.
4. The heat-resistant, flame-retardant and wear-resistant tire containing nano-inorganic mullite alumina hollow microspheres as claimed in claim 1, wherein the spray granulation in the step S2 is specifically: the inlet temperature of hot air is 85-95 ℃, the outlet temperature is 55-70 ℃, the inlet air volume is 120-150m < 3 >/h, the outlet air volume is 150-200m < 3 >/h, and the rotating speed is 12000-16000r/min.
5. The heat-resistant, flame-retardant and wear-resistant tire containing nano-inorganic mullite alumina hollow microbeads according to claim 1, wherein the rare earth nitrate is prepared from cerium nitrate and lanthanum nitrate in a weight ratio of 1:0.5 to 2.
6. The heat-resistant, flame-retardant, wear-resistant tire containing nano-inorganic mullite alumina hollow microbeads according to claim 1, wherein said Lewis acid is boron trifluoride.
7. The heat-resistant, flame-retardant and wear-resistant tire containing nano-inorganic mullite alumina hollow microbeads according to claim 1, wherein said anti-aging agent is anti-aging agent 4020;
the coupling agent is KH550;
the foaming agent is foaming agent OBSH-75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263947.8A CN114085515B (en) | 2021-10-28 | 2021-10-28 | Heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263947.8A CN114085515B (en) | 2021-10-28 | 2021-10-28 | Heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114085515A CN114085515A (en) | 2022-02-25 |
| CN114085515B true CN114085515B (en) | 2023-04-11 |
Family
ID=80298405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111263947.8A Active CN114085515B (en) | 2021-10-28 | 2021-10-28 | Heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114085515B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594475B (en) * | 2022-09-28 | 2023-06-30 | 杭州蓝田涂料有限公司 | Thermal insulation gypsum-based self-leveling mortar and preparation method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO116778B (en) * | 1963-05-31 | 1969-05-19 | Monsanto Co | |
| JPS59169963A (en) * | 1983-03-17 | 1984-09-26 | キヤタラ−工業株式会社 | High strength ceramic foam and manufacture |
| JPS60200874A (en) * | 1984-03-22 | 1985-10-11 | 東洋ゴム工業株式会社 | Manufacture of ceramic foam |
| JPH0615421B2 (en) * | 1985-09-04 | 1994-03-02 | 株式会社ノリタケカンパニ−リミテド | Method for manufacturing mullite sintered body |
| US20070148471A1 (en) * | 2004-09-01 | 2007-06-28 | Rukavina Thomas G | Impact resistant polyurethane and poly(ureaurethane) articles and methods of making the same |
| JP4674896B2 (en) * | 2005-03-16 | 2011-04-20 | 協和化学工業株式会社 | Aluminum silicate, method for producing the same, and method for purifying polyoxyalkylene polyol using the same |
| JP5892764B2 (en) * | 2010-12-16 | 2016-03-23 | 日揮触媒化成株式会社 | Crystalline silicoaluminophosphate molding and method for producing the same |
| WO2012158732A1 (en) * | 2011-05-16 | 2012-11-22 | The Procter & Gamble Company | Cleaning implement based on melamine-formaldehyde foam comprising hollow microspheres |
| CN103253981B (en) * | 2013-04-25 | 2015-04-15 | 南昌大学 | Preparation method of mullite/silicon carbide complex-phase foamed ceramic |
| CN103739806A (en) * | 2013-12-22 | 2014-04-23 | 广西弘耀祥科技有限公司 | Polyurethane rigid foam plastic |
| CN108069725B (en) * | 2016-11-09 | 2021-05-18 | 中国科学院金属研究所 | Hollow foam material and preparation method and application thereof |
| CN106750092A (en) * | 2016-11-28 | 2017-05-31 | 河南同伟建材有限公司 | A kind of compound polyurethane material for laying plastic cement race track and preparation method thereof |
| CN106632976A (en) * | 2016-11-28 | 2017-05-10 | 河南同伟建材有限公司 | Elastic vibration-absorptive material for gymnasium floor, and preparation method of elastic vibration-absorptive material |
-
2021
- 2021-10-28 CN CN202111263947.8A patent/CN114085515B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114085515A (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2818501B1 (en) | Method for preparing a graphene oxide/carbon white/rubber nanometer composite material | |
| CN109206694B (en) | Tire tread rubber | |
| CN102516608B (en) | Nanometer rare earth inorganic substance/rubber composite with high wear resistant and excellent dynamic property | |
| CN114085515B (en) | Heat-resistant, flame-retardant and wear-resistant tire containing nano inorganic mullite alumina hollow microspheres | |
| CN102558624A (en) | Rubber composition for color truck radial tire tread | |
| CN110372930B (en) | Tire tread rubber | |
| CA2284313A1 (en) | Reinforced elastomer preparation, elastomer composite and tire having component thereof | |
| CN104119578A (en) | Rubber composition for tread of truck radial tire with low hysteresis loss | |
| EP3555194B1 (en) | Tyre for vehicle wheels | |
| CN108026336A (en) | Tire | |
| CN103483711B (en) | Excellent bubble-tight tire material and preparation method thereof | |
| CN103467793A (en) | Sidewall rubber of automobile tire | |
| CN116285025A (en) | Tread rubber material of low-rolling-resistance all-steel radial tire and preparation method thereof | |
| CN105037854A (en) | Drifting tread rubber composition and semi-steel radial tire comprising same | |
| CN111320823B (en) | Wear-resistant anti-aging automobile sealing strip and preparation method thereof | |
| CN102604169B (en) | Rubber composition for colored truck bus radial tire bead reinforcing rubber strip | |
| CA2284155A1 (en) | Prepared reinforced elastomer, elastomer composite and tire having component thereof | |
| CN105778177A (en) | Tread rubber material for passenger vehicle tire with super-low rolling resistance, and preparation method thereof | |
| EP1112961A1 (en) | Aluminium hydroxide and tyre tread rubber composition and pneumatic tyre employing the aluminium hydroxide | |
| CN103154116A (en) | Rubber composition for tire and pneumatic tire | |
| CN112175256B (en) | Tire body skim coating for tire and preparation method thereof | |
| CA2284158A1 (en) | Preparation of reinforced elastomer, elastomer composite and tire having component thereof | |
| CN111073067A (en) | Antistatic and wear-resistant aircraft tire tread rubber material and preparation method thereof | |
| JP2005281621A (en) | Rubber composition for pneumatic tire and pneumatic tire | |
| CN104629109A (en) | Formula and preparation process of tread rubber material of full steel loading meridian tire with low rolling resistance |
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 |