Damping vibration-absorbing material containing summer fruit shells and kyanite and preparation method of damping vibration-absorbing material

Abstract

The invention relates to a damping shock-absorbing material, in particular to a damping shock-absorbing material containing selfheal shells and kyanite and a preparation method of the damping shock-absorbing material. The invention aims to provide the damping shock-absorbing material containing the summer fruit shell and the kyanite, and the material has good friction performance, wear resistance and high temperature resistance, is beneficial to environmental protection, and can meet the use requirements in different fields. According to the technical scheme, the damping material containing the summer fruit shells and the kyanite comprises the following components in parts by weight: 10-30 parts of summer fruit shell powder; 10 to 30 parts of kyanite powder; 10 to 20 parts of polyphthalamide powder; 4 to 10 parts of graphite powder; 5 to 12 parts of steel fiber; 10 to 30 parts of ceramic fiber; 1-5 parts of a friction modifier; and 4-12 parts of powdery butyl fluorine mixed rubber.

Description

Technical Field

[0001] The invention relates to a damping and shock absorbing material, in particular to a damping and shock absorbing material containing summer fruit shell and kyanite and a preparation method thereof. Background Art

[0002] As a product of modern industry, damping and shock absorbing materials play an increasingly important role in the national economy and people's social life. With the continuous development of the economy and society, the demand for high-performance damping and shock absorbing materials is increasing. Traditional damping and shock absorbing materials often have some problems during use, such as unstable friction coefficient, high wear rate, insufficient high temperature resistance and environmental protection. CN110628106B discloses a damping and shock absorbing thermoplastic elastomer material, the raw materials of which include by weight: 20-80 parts of TPV thermoplastic elastomer, 10-80 parts of TPE thermoplastic elastomer, 2-30 parts of polyolefin resin, 2-20 parts of processing oil, 0.1-5 parts of processing aid, 0.1-1 parts of antioxidant, 0.6-0.8 parts of diisopropylbenzene peroxide, wherein the TPE thermoplastic elastomer is at least one of aliphatic olefin thermoplastic elastomer and styrene thermoplastic elastomer. Although the material has good damping and shock absorbing performance, it is not a green and environmentally friendly damping and shock absorbing material; therefore, it still needs to be improved. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide a damping and shock-absorbing material containing summer fruit shells and kyanite. The material has good friction performance, wear resistance and high temperature resistance, is conducive to green environmental protection, and can meet the use requirements of different fields.

[0004] The technical solution provided by the present invention is:

[0005] A damping and shock-absorbing material containing summer fruit shells and kyanite comprises the following components by weight: 10 to 30 parts of summer fruit shell powder; 10 to 30 parts of kyanite powder; 10 to 20 parts of polyphthalamide powder; 4 to 10 parts of graphite powder; 5 to 12 parts of steel fiber; 10 to 30 parts of ceramic fiber; 1 to 5 parts of friction regulator; and 4 to 12 parts of powdered fluorine-butadiene mixed rubber.

[0006] The summer fruit shell powder is obtained by crushing and screening the summer fruit shell, mixing it with liquid phenolic resin in a weight percentage ratio of 6:1, and then drying it, and the particle size is 50-200 meshes; the summer fruit shell has high hardness and toughness, and can improve the wear resistance and strength of the damping and shock-absorbing material.

[0007] The kyanite powder is ground and graded kyanite powder, and its particle size is 500-1000 meshes; it has good high temperature resistance and chemical stability, and can improve the high temperature resistance and oxidation resistance of the damping and shock absorbing material.

[0008] The polyphthalamide powder is a thermosetting resin with a particle size of 325-500 meshes; it has good bonding performance and heat resistance, and can firmly bond various components together to form a stable damping and shock-absorbing material structure.

[0009] The graphite powder is one of granular graphite, expanded graphite and microcrystalline graphite, and has a particle size of 80-120 meshes; it has good lubrication and thermal conductivity, can reduce the friction coefficient and wear rate of the damping and shock absorbing material, and increase the service life of the damping and shock absorbing material.

[0010] The steel fiber is a stainless steel fiber with a length of 3 to 5 mm and a diameter of 0.8 to 0.3 mm; it can improve the strength and toughness of the damping and shock absorbing material and prevent the damping and shock absorbing material from breaking and breaking during use.

[0011] The ceramic fiber is aluminum silicate ceramic fiber or zirconium oxide ceramic fiber with a diameter of 3 to 5 μm; it has good high temperature resistance and heat insulation performance, can improve the high temperature resistance and heat insulation performance of the damping and shock absorbing material, and prevent the performance of the damping and shock absorbing material from deteriorating in a high temperature environment.

[0012] The friction regulator is one of silicon carbide powder, boron nitride powder and a mixture of silicon carbide powder and boron nitride powder mixed in a ratio of 1:1, with a particle size of 400-500 meshes; it can adjust the friction coefficient of the damping material so that it maintains stable friction performance under different use conditions.

[0013] The powdered fluorobutyl mixed rubber is synthesized by mixing butyl rubber and polytetrafluoroethylene resin in a ratio of 1:1 and crushed into particles of 60 to 80 meshes.

[0014] The preparation method of the damping and shock-absorbing material containing summer fruit shell and kyanite provided by the present invention comprises the following steps:

[0015] (1) crushing and screening the summer fruit shell, mixing it with liquid phenolic resin in a weight percentage ratio of 6:1, and then drying it to obtain summer fruit shell powder;

[0016] (2) grinding and classifying the kyanite to obtain kyanite powder;

[0017] (3) mixing polyphthalamide powder, graphite, steel fiber, ceramic fiber, friction modifier, and powdered fluorobutane mixed rubber in proportion to obtain a mixed powder;

[0018] (4) adding summer fruit shell powder and kyanite powder to the mixed powder and stirring evenly to obtain a damping and shock absorbing material raw material;

[0019] (5) The damping and shock absorbing material raw material is loaded into a mold for hot pressing to obtain the damping and shock absorbing material containing summer fruit shell and kyanite.

[0020] The temperature of the hot pressing molding is 160-190° C., the pressure is 20-40 MPa, and the time is 5-20 min.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] (1) The damping and shock absorbing material of the present invention uses summer fruit shell powder and kyanite powder as main raw materials, which are low in cost and widely available; a large amount of summer fruit shell powder consumed can be recycled, and environmental pollution is significantly reduced, which has the characteristics of green environmental protection; at the same time, the damping and shock absorbing material formed has good friction performance, wear resistance and high temperature resistance.

[0023] (2) The damping and shock absorbing material of the present invention contains components such as polyamide resin, graphite, steel fiber, ceramic fiber, friction modifier and powdered fluorobutane mixed rubber, which can improve the strength, toughness, lubricity, thermal conductivity, high temperature resistance and thermal insulation of the damping and shock absorbing material, so that it can maintain stable friction performance under different use conditions.

[0024] (3) The preparation method of the damping and shock absorbing material of the present invention is simple, easy to operate, and suitable for large-scale production. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to specific embodiments.

[0026] Example 1

[0027] A damping and shock-absorbing material containing summer fruit shells and kyanite, comprising the following components in parts by weight:

[0028] 20 parts of summer fruit shell powder; 20 parts of kyanite powder; 16 parts of polyphthalamide powder; 7 parts of graphite powder; 6 parts of steel fiber; 20 parts of ceramic fiber; 3 parts of friction regulator; 7 parts of powdered fluorine-butadiene mixed rubber.

[0029] The summer fruit shell powder is prepared by mixing the summer fruit shell after crushing and screening with liquid phenolic resin in a weight percentage ratio of 6:1 and air-drying, and the particle size is 80 meshes.

[0030] The kyanite powder is kyanite powder that has been ground and classified, and has a particle size of 500 meshes.

[0031] The polyphthalamide powder is a thermosetting polyphthalamide resin with a particle size of 325 meshes.

[0032] The graphite powder is granular graphite with a particle size of 100 meshes.

[0033] The steel fiber is a stainless steel fiber with a length of 3-5 mm and a diameter of 0.08 mm.

[0034] The ceramic fiber is aluminum silicate ceramic fiber with a diameter of 3 to 5 μm.

[0035] The friction modifier is silicon carbide powder and boron nitride powder mixed in a ratio of 1:1, and the particle size is 500 meshes.

[0036] The powdered fluorobutyl mixed rubber is particles formed by mixing butyl rubber and polytetrafluoroethylene resin in a ratio of 1:1, and the particle size is 60 meshes.

[0037] The preparation method of the damping and shock absorbing material of this embodiment is as follows:

[0038] (1) crushing and screening the summer fruit shell, mixing it with liquid phenolic resin in a weight percentage ratio of 6:1, and then drying it to obtain summer fruit shell powder;

[0039] (2) grinding and classifying the kyanite to obtain kyanite powder;

[0040] (3) mixing polyphthalamide powder, graphite powder, steel fiber, ceramic fiber, friction performance modifier, and powdered fluorobutane mixed rubber in proportion to obtain a mixed powder;

[0041] (4) adding summer fruit shell powder and kyanite powder to the mixed powder and stirring evenly to obtain a damping and shock absorbing material raw material;

[0042] (3) The damping and shock absorbing material raw material is loaded into a mold, and hot pressing is performed at a temperature of 180° C. and a pressure of 22 MPa for 10 min to obtain a damping and shock absorbing material containing summer fruit shell and kyanite.

[0043] Example 2

[0044] A damping and shock-absorbing material containing summer fruit shells and kyanite, comprising the following components in parts by weight:

[0045] 22 parts of summer fruit shell powder; 22 parts of kyanite powder; 18 parts of polyphthalamide powder; 9 parts of graphite powder; 7 parts of steel fiber; 18 parts of ceramic fiber; 4 parts of friction regulator; 8 parts of powdered fluorine-butadiene mixed rubber.

[0046] The summer fruit shell powder is prepared by mixing summer fruit shells that have been crushed and screened with liquid phenolic resin in a weight percentage ratio of 6:1 and then air-drying, and the particle size is 100 meshes.

[0047] The kyanite powder is kyanite powder that has been ground and classified, and has a particle size of 700 meshes.

[0048] The polyphthalamide powder is a thermosetting polyphthalamide resin with a particle size of 400 meshes.

[0049] The graphite is expanded graphite with a particle size of 80 meshes.

[0050] The steel fiber is a stainless steel fiber with a length of 3 to 5 mm and a diameter of 0.2 mm.

[0051] The ceramic fiber is alumina ceramic fiber with a diameter of 3 to 5 μm.

[0052] The friction modifier is silicon carbide powder with a particle size of 400 meshes.

[0053] The powdered fluorobutyl mixed rubber is particles formed by mixing butyl rubber and polytetrafluoroethylene resin in a ratio of 1:1, and the particle size is 70 meshes.

[0054] The preparation method of the damping and shock absorbing material of this embodiment is as follows:

[0055] (1) crushing and screening the summer fruit shell, mixing it with liquid phenolic resin in a weight percentage ratio of 6:1, and then drying it to obtain summer fruit shell powder;

[0056] (2) grinding and classifying the kyanite to obtain kyanite powder;

[0057] (3) mixing thermosetting polyamide resin, steel fiber, ceramic fiber, graphite powder, friction modifier and powdered fluorobutane mixed rubber in proportion to obtain a mixed powder;

[0058] (4) adding summer fruit shell powder and kyanite powder to the mixed powder and stirring evenly to obtain a damping and shock absorbing material raw material;

[0059] (5) The damping and shock absorbing material raw material is loaded into a mold, and hot pressing is performed at a temperature of 170° C. and a pressure of 25 MPa for 12 min to obtain a damping and shock absorbing material containing summer fruit shell and kyanite.

[0060] Example 3

[0061] A damping and shock-absorbing material containing summer fruit shells and kyanite, comprising the following components in parts by weight:

[0062] 30 parts of summer fruit shell powder; 20 parts of kyanite powder; 17 parts of polyphthalamide powder; 5 parts of graphite powder; 5 parts of steel fiber; 15 parts of ceramic fiber; 3 parts of friction regulator; 5 parts of powdered fluorine-butadiene mixed rubber.

[0063] The summer fruit shell powder is prepared by mixing the summer fruit shell after crushing and screening with liquid phenolic resin in a weight percentage ratio of 6:1 and air-drying, and the particle size is 120 meshes.

[0064] The kyanite powder is kyanite powder that has been ground and classified, and has a particle size of 800 meshes.

[0065] The polyphthalamide powder is a thermosetting polyphthalamide resin with a particle size of 500 meshes.

[0066] The graphite powder is microcrystalline graphite with a particle size of 120 meshes.

[0067] The steel fiber is a stainless steel fiber with a length of 3-5 mm and a diameter of 0.3 mm.

[0068] The ceramic fiber is zirconium oxide ceramic fiber with a diameter of 3-5 μm.

[0069] The friction modifier is boron nitride powder with a particle size of 450 meshes.

[0070] The powdered fluorobutyl mixed rubber is particles formed by mixing butyl rubber and polytetrafluoroethylene resin in a ratio of 1:1, and the particle size is 80 meshes.

[0071] The preparation method of the damping and shock absorbing material of this embodiment is as follows:

[0072] (1) crushing and screening the summer fruit shell, mixing it with liquid phenolic resin in a weight percentage ratio of 6:1, and then drying it to obtain summer fruit shell powder;

[0073] (2) grinding and classifying the kyanite to obtain kyanite powder;

[0074] (3) mixing polyphthalamide powder, graphite powder, steel fiber, ceramic fiber, friction modifier, and powdered fluorobutane mixed rubber in proportion to obtain a mixed powder;

[0075] (4) adding summer fruit shell powder and kyanite powder to the mixed powder and stirring evenly to obtain a damping and shock absorbing material raw material;

[0076] (5) The damping and shock absorbing material raw material is loaded into a mold, and hot pressing is performed at a temperature of 190° C. and a pressure of 30 MPa for 15 min to obtain a damping and shock absorbing material containing summer fruit shell and kyanite.

[0077] Comparative Example 1

[0078] A damping and shock absorbing material, comprising the following components in parts by weight:

[0079] 20 parts of phenolic resin; 10 parts of graphite powder; 8 parts of steel fiber; 5 parts of ceramic fiber; 3 parts of friction modifier. The specifications of the components in this comparative example are the same as those in the embodiment, and the preparation method of the damping and vibration absorbing material is the same as that in embodiment 1.

[0080] Comparative Example 2

[0081] A damping and shock absorbing material, comprising the following components in parts by weight:

[0082] 16 parts of polyamide powder; 7 parts of graphite powder; 6 parts of steel fiber; 20 parts of ceramic fiber; 3 parts of friction modifier; 8 parts of powdered fluorine-butadiene rubber.

[0083] The specifications of the components in this comparative example are the same as those in the embodiment, and the preparation method of the damping and shock absorbing material is the same as that in embodiment 1.

[0084] Comparative Example 3

[0085] A damping and shock absorbing material, comprising the following components in parts by weight:

[0086] 17 parts of polyphthalamide powder; 5 parts of graphite powder; 5 parts of steel fiber; 15 parts of ceramic fiber; 3 parts of friction modifier; 5 parts of powdered fluorinated rubber. The specifications of the components in this comparative example are the same as those in the example, and the preparation method of the damping and shock absorbing material is the same as that in Example 1.

[0087] The damping and shock absorbing materials prepared in Examples 1-3 and Comparative Examples 1-3 were subjected to performance tests, and the test results are shown in the following table:

[0088]

[0089] It can be seen from the test results that the damping and shock-absorbing material containing summer fruit shell and kyanite of the present invention has a higher friction coefficient, a lower wear rate and good high temperature resistance, which is significantly better than the damping and shock-absorbing material in the comparative example, and has green and environmentally friendly characteristics.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A damping and shock-absorbing material containing summer fruit shell and kyanite and a preparation method thereof, comprising the following components: 20 to 30 parts of summer fruit shell powder; 20 to 22 parts of kyanite powder; 16 to 18 parts of polyphthalamide powder; 5 to 9 parts of graphite powder; 5 to 7 parts of steel fiber; 15 to 20 parts of ceramic fiber; 3 to 4 parts of friction modifier; and 5 to 8 parts of powdered fluorine-butadiene mixed rubber.

2. The damping and shock absorbing material containing summer fruit shell and kyanite according to claim 1, characterized in that: The summer fruit shell powder is made by mixing the summer fruit shell after crushing and screening with liquid phenolic resin in a weight percentage ratio of 6:1 and drying it, and the particle size is 80-120 meshes; The kyanite powder is kyanite powder that has been ground and classified, and has a particle size of 500 to 800 meshes; The particle size of the polyphthalamide powder is 325 to 500 meshes; The powdered fluorobutyl mixed rubber is a mixture of butyl rubber and polytetrafluoroethylene resin in a ratio of 1:1 and crushed into particles of 60 to 80 meshes; The graphite powder is one of granular graphite, expanded graphite and microcrystalline graphite, and the particle size is 80-120 mesh; The steel fiber is a stainless steel fiber with a length of 3 to 5 mm and a diameter of 0.08 to 0.30 mm; The ceramic fiber is aluminum silicate ceramic fiber or zirconium oxide ceramic fiber, and has a diameter of 3 to 5 μm; The friction modifier is one of silicon carbide powder, boron nitride powder and a mixture of silicon carbide powder and boron nitride powder mixed in a ratio of 1:1, and the particle size is 400-500 meshes.

3. The method for preparing the flame retardant, damping and shock absorbing material containing summer fruit shell and kyanite according to claim 1 comprises the following steps: (1) crushing and screening the summer fruit shell, mixing it with liquid phenolic resin in a weight percentage ratio of 6:1, and then drying it to obtain summer fruit shell powder; (2) grinding and classifying the kyanite to obtain kyanite powder; (3) mixing polyphthalamide powder, graphite, steel fiber, ceramic fiber, friction modifier, and powdered fluorobutane mixed rubber in proportion to obtain a mixed powder; (4) adding summer fruit shell powder and kyanite powder to the mixed powder and stirring evenly to obtain a damping and shock absorbing material raw material; (5) The damping and shock absorbing material raw material is loaded into a mold for hot pressing to obtain the damping and shock absorbing material containing summer fruit shell and kyanite.

4. The method for preparing the damping and shock absorbing material containing summer fruit shell and kyanite according to claim 3, characterized in that: The temperature of the hot pressing molding is 160-190° C., the pressure is 20-40 MPa, and the time is 5-15 min.

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