CN115304829B - High-friction conveyor belt material and preparation method thereof - Google Patents
High-friction conveyor belt material and preparation method thereof Download PDFInfo
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Abstract
The invention provides a high-friction conveyor belt material and a preparation method thereof, wherein the high-friction conveyor belt material is prepared from the following raw materials in parts by weight: 40-60 parts of natural rubber, 20-30 parts of aromatic polyether type thermoplastic polyurethane elastomer, 10-15 parts of acyl chloride-terminated fluorine rubber, 3-6 parts of vulcanizing agent, 2-4 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 5-8 parts of waste polyaromatic oxadiazole fiber, 1-4 parts of nano molybdenum disulfide, 25-40 parts of reinforcing filler, 3-5 parts of glass fiber, 3-5 parts of coupling agent, 2-3 parts of 4,4' -diacyl chloride diphenyl ether, 1-3 parts of stearic acid, 3-5 parts of nano metal oxide, 1-2 parts of naphthenic oil and 1-5 parts of accelerator. The high-friction conveying belt material disclosed by the invention is good in environmental protection, long in service life, sufficient in aging resistance and performance stability, and excellent in mechanical property and wear resistance.
Description
Technical Field
The invention relates to the technical field of conveyor belt materials, in particular to a high-friction conveyor belt material and a preparation method thereof.
Background
The rubber conveyer belt is a traditional rubber product and has wide application. The conveying device is mainly used for conveying and transporting various materials, such as underground material conveying and ground loading and unloading of mining industry, loading and unloading of wharf materials, slag discharge of industrial and mining enterprises and sorting of postal parcels. As an uninterrupted carrying and transferring carrier, the conveying belt is required to have excellent wear resistance, mechanical property and performance stability in various working environments.
The high-friction conveyer belt is a common conveyer belt, and is widely applied to automatic sorting and conveying lines of postal letters and automatic scanning and distinguishing conveying lines of small commodity packaging bar codes in the industries of food, tobacco and the like. Because the conveying speed is high, the conveyed articles need to have good stability, and the high-friction conveying belt has higher requirements on wear resistance and mechanical property. The wear resistance and mechanical property of the traditional common rubber conveying belt can not meet the requirements. The existing high-friction conveying belt has the defects of poor environmental protection property, short service life, insufficient aging resistance and performance stability, and further improved mechanical property and wear resistance.
In order to solve the above problems, patent CN1313530C discloses a high friction conveyor belt material, which comprises a base material, an elastomer, a plasticizer, a stabilizer, and a reinforcing filler, wherein the base material is PVC paste resin and PVC blended resin, and the plasticizer comprises XNBR rubber plasticizer. The high-friction conveying belt material produced by blending nitrile rubber and XNBR liquid rubber plasticizer and modifying common PVC resin can be applied to a production process of a plastic conveying belt sol coating method, and compared with copolymerized PVC-TPE resin, the high-friction conveying belt material has the tensile strength which is not higher than that of thermoplastic polyurethane but higher than that of other thermoplastic elastomers under the same hardness; the compression permanent deformation and the thermal deformation rate are smaller than those of soft PVC, and are close to those of rubber, so that the rebound resilience is improved; the heat resistance and the cold resistance are superior to those of soft PVC, the shape retention at high temperature is good, and the temperature dependence of the hardness is smaller than that of the soft PVC; the bending fatigue property of the PVC is superior to that of common soft PVC, and the PVC has good surface property, caking property, coating property, wear resistance and extinction property. However, the environment friendliness is poor, the wear resistance and mechanical properties are to be further improved, and the stability of the properties is to be further improved due to the compatibility between the components.
Therefore, the development of the high-friction conveying belt material which is good in environmental protection, long in service life, sufficient in aging resistance and performance stability, excellent in mechanical property and wear resistance meets the market demand, has wide market value and application prospect, and has very important significance for promoting the development of the field of conveying belts.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a high friction conveyor belt material having excellent environmental protection properties, a long service life, sufficient aging resistance and performance stability, and excellent mechanical properties and wear resistance, and a method for preparing the same.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-friction conveyor belt material comprises the following raw materials in parts by weight: 40-60 parts of natural rubber, 20-30 parts of aromatic polyether type thermoplastic polyurethane elastomer, 10-15 parts of acyl chloride-terminated fluorine rubber, 3-6 parts of vulcanizing agent, 2-4 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 5-8 parts of waste polyaromatic oxadiazole fiber, 1-4 parts of nano molybdenum disulfide, 25-40 parts of reinforcing filler, 3-5 parts of glass fiber, 3-5 parts of coupling agent, 2-3 parts of 4,4' -diacyl chloride diphenyl ether, 1-3 parts of stearic acid, 3-5 parts of nano metal oxide, 1-2 parts of naphthenic oil and 1-5 parts of accelerator.
Preferably, the promoter is at least one of 2-thiol benzothiazole and 2-dibenzothiazyl disulfide.
Preferably, the nano metal oxide is at least one of nano zinc oxide and nano magnesium oxide; the particle size of the nano metal oxide is 100-400nm.
Preferably, the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570.
Preferably, the average diameter of the glass fiber is 3-9 μm, and the length-diameter ratio is (20-30): 1; the waste polyaryloxadiazole fiber is a waste product of polyester staple fiber, the average diameter of the waste polyaryloxadiazole fiber is 3-9 mu m, and the length-diameter ratio (20-30) is 1.
Preferably, the reinforcing filler is at least one of white carbon black and calcium carbonate; the grain size of the reinforcing filler is 800-1200 meshes; the particle size of the nano molybdenum disulfide is 300-500nm.
Preferably, the vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber masterbatch SCRWF.
Preferably, the source of the terminal acyl chloride fluororubber is not particularly required, and in one embodiment of the invention, the terminal acyl chloride fluororubber is prepared by performing acylation reaction on 26 type liquid terminal carboxyl fluororubber (Mn =3450, -COOH% =2.5 mass fraction), wherein the terminal group conversion rate is 86.57%, and the preparation method is as follows: li Donghan, liao Mingyi research on the synthesis of liquid end acyl chloro fluoro rubber with different acylating reagents [ J ] rubber and plastic technology and equipment, 23 of 2017.
Another object of the present invention is to provide a method for preparing the high-friction conveyor belt material, comprising the following steps: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on cord fabric or canvas; and (4) vulcanizing and molding on a vulcanizing press.
Preferably, the roll temperature in the mixing is 60-80 ℃, and the mixing time is 5-10min.
Preferably, the vulcanization temperature of the vulcanization molding is 145-160 ℃, the pressure is 10-15MPa, and the vulcanization time is 8-12min.
Compared with the prior art, the invention has the beneficial effects that:
(1) The preparation method of the high-friction conveyor belt material disclosed by the invention is simple in process, convenient to operate and control, free of special equipment, capable of being realized by adopting conventional equipment and process steps, low in capital investment, low in energy consumption, high in preparation efficiency and yield and suitable for industrial production.
(2) The high-friction conveyor belt material disclosed by the invention takes natural rubber, aromatic polyether type thermoplastic polyurethane elastomer and acyl chloride-terminated fluororubber as the base materials, so that the prepared product combines the advantages of the materials, and the materials are mutually matched and acted together, so that the conveyor belt material is endowed with excellent mechanical property, wear resistance, performance stability and aging resistance, and the service life of the product is effectively prolonged.
(3) The invention discloses a high-friction conveyer belt material, wherein acyl chloride fluorine rubber at the end and 4,4' -diacyl chloride diphenyl ether can react with benzene ring on aromatic polyether type thermoplastic polyurethane elastomer, benzene ring and amino on 2,4-diamino-6-phenyl-1,3,5-triazine to form interpenetrating network structure, which further enhances the internal crosslinking density of the material to form different network structures together with a vulcanization system taking sulfur as a vulcanizing agent and a fluororubber vulcanization system taking 2,4-diamino-6-phenyl-1,3,5-triazine as a bisamino crosslinking agent, and the different crosslinking network structures exist at the same time, thereby effectively improving the mechanical property, wear resistance, performance stability and aging resistance of the conveyer belt material product and further prolonging the service life of the conveyer belt material.
(4) According to the high-friction conveyor belt material disclosed by the invention, through compatibility of the raw materials, the phenyl triazine, the phenyl ether, the phenyl ketone and the polyurethane structure are simultaneously introduced into the material structure, and under multiple actions of an electronic effect, a steric effect, a conjugate effect and the like, the prepared high-friction conveyor belt material has better aging resistance and performance stability, and better wear resistance and mechanical property. The components of the waste polyaryloxadiazole fiber, the nano molybdenum disulfide and the glass fiber are matched to effectively reinforce and improve the wear resistance. The waste polyaromatic oxadiazole fiber is recycled, so that the effects of energy conservation and emission reduction are achieved; the content of halogen contained in the material after the molecular structure is internally molded is smaller, so that the environmental protection performance is better.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following provides a detailed description of the product of the present invention with reference to the examples.
Example 1
A high-friction conveyor belt material comprises the following raw materials in parts by weight: 40 parts of natural rubber, 20 parts of aromatic polyether type thermoplastic polyurethane elastomer, 10 parts of acyl chloride-terminated fluororubber, 3 parts of vulcanizing agent, 2 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 5 parts of waste polyaryl oxadiazole fiber, 1 part of nano molybdenum disulfide, 25 parts of reinforcing filler, 3 parts of glass fiber, 3 parts of coupling agent, 2 parts of 4,4' -diacyl chloride diphenyl ether, 1 part of stearic acid, 3 parts of nano metal oxide, 1 part of naphthenic oil and 1 part of accelerator.
The promoter is 2-thiol benzothiazole; the nano metal oxide is nano zinc oxide; the particle size of the nano metal oxide is 100nm; the coupling agent is a silane coupling agent KH550; the glass fiber has an average diameter of 3 μm and an aspect ratio of 20; the waste polyaromatic oxadiazole fiber is a waste product of polyester staple fiber, the average diameter of the waste polyaromatic oxadiazole fiber is 3 microns, and the length-diameter ratio of the waste polyaromatic oxadiazole fiber is 20; the reinforcing filler is white carbon black; the grain size of the reinforcing filler is 800 meshes; the particle size of the nano molybdenum disulfide is 300nm; the vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber masterbatch SCRWF.
The acyl chloride-terminated fluororubber is prepared from 26 type liquid carboxyl-terminated fluororubber (Mn =3450, -COOH% =2.5 mass fraction) through acylation reaction, wherein the conversion rate of terminal groups is 86.57%, and the preparation method is as follows: li Donghan, liao Mingyi, research on synthesis of liquid terminal acyl chloride-based fluororubber by using different acylation reagents [ J ] rubber and plastic technology and equipment, 23 years in 2017.
A preparation method of the high-friction conveyor belt material comprises the following steps: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on cord fabric; vulcanizing and molding on a flat vulcanizing machine; the roll temperature in the mixing is 60 ℃, and the mixing time is 5min; the vulcanization temperature of the vulcanization molding is 145 ℃, the pressure is 10MPa, and the vulcanization time is 8min.
Example 2
A high-friction conveyor belt material comprises the following raw materials in parts by weight: 45 parts of natural rubber, 23 parts of aromatic polyether type thermoplastic polyurethane elastomer, 12 parts of acyl chloride-terminated fluororubber, 4 parts of vulcanizing agent, 2.5 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 6 parts of waste polyaryl oxadiazole fiber, 2 parts of nano molybdenum disulfide, 30 parts of reinforcing filler, 3.5 parts of glass fiber, 3.5 parts of coupling agent, 2.3 parts of 4,4' -diacyl diphenyl ether, 1.5 parts of stearic acid, 3.5 parts of nano metal oxide, 1.2 parts of naphthenic oil and 2 parts of accelerator.
The accelerator is 2-dibenzothiazyl disulfide; the nano metal oxide is nano magnesium oxide; the particle size of the nano metal oxide is 200nm; the coupling agent is a silane coupling agent KH560; the glass fiber has an average diameter of 4 μm and an aspect ratio of 22; the waste polyaromatic oxadiazole fiber is a waste product of polyester staple fiber, the average diameter of the waste polyaromatic oxadiazole fiber is 5 microns, and the length-diameter ratio of the waste polyaromatic oxadiazole fiber is 23; the reinforcing filler is calcium carbonate; the grain size of the reinforcing filler is 900 meshes; the particle size of the nano molybdenum disulfide is 350nm; the vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber master batch SCRWF.
The acyl chloride-terminated fluororubber is prepared from 26 type liquid carboxyl-terminated fluororubber (Mn =3450, -COOH% =2.5 mass fraction) through acylation reaction, wherein the conversion rate of terminal groups is 86.57%, and the preparation method is as follows: li Donghan, liao Mingyi research on the synthesis of liquid end acyl chloro fluoro rubber with different acylating reagents [ J ] rubber and plastic technology and equipment, 23 of 2017.
A preparation method of the high-friction conveyor belt material comprises the following steps: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on canvas; vulcanizing and molding on a flat vulcanizing machine; the roll temperature in the mixing is 65 ℃, and the mixing time is 6min; the vulcanization temperature of the vulcanization molding is 150 ℃, the pressure is 12MPa, and the vulcanization time is 9min.
Example 3
A high-friction conveyor belt material is prepared from the following raw materials in parts by weight: 50 parts of natural rubber, 25 parts of aromatic polyether type thermoplastic polyurethane elastomer, 13 parts of acyl chloride-terminated fluororubber, 4.5 parts of vulcanizing agent, 3 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 6.5 parts of waste polyaryl oxadiazole fiber, 2.5 parts of nano molybdenum disulfide, 32 parts of reinforcing filler, 4 parts of glass fiber, 4 parts of coupling agent, 2.5 parts of 4,4' -diacyl chloride diphenyl ether, 2 parts of stearic acid, 4 parts of nano metal oxide, 1.5 parts of naphthenic oil and 3 parts of accelerator.
The promoter is 2-thiol benzothiazole; the nano metal oxide is nano zinc oxide; the particle size of the nano metal oxide is 250nm; the coupling agent is a silane coupling agent KH570; the glass fiber has an average diameter of 6 μm and an aspect ratio of 25; the waste polyaromatic oxadiazole fiber is a product obtained by discarding a polyester staple fiber, and has an average diameter of 6 microns and a length-diameter ratio of 25; the reinforcing filler is white carbon black; the grain size of the reinforcing filler is 1000 meshes; the particle size of the nano molybdenum disulfide is 400nm; the vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber masterbatch SCRWF.
The acyl chloride-terminated fluororubber is prepared from 26 type liquid carboxyl-terminated fluororubber (Mn =3450, -COOH% =2.5 mass fraction) through acylation reaction, wherein the conversion rate of the terminal group is 86.57%, and the preparation method is as follows: li Donghan, liao Mingyi, research on the synthesis of liquid end acyl chloride-based fluororubbers by using different acylating reagents [ J ] rubber and plastic technology and equipment, 23 years 2017.
A preparation method of the high-friction conveyor belt material comprises the following steps: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on cord fabric; vulcanizing and molding on a flat vulcanizing machine; the roll temperature in the mixing is 70 ℃, and the mixing time is 7.5min; the vulcanization temperature of the vulcanization molding is 153 ℃, the pressure is 13MPa, and the vulcanization time is 10min.
Example 4
A high-friction conveyor belt material is prepared from the following raw materials in parts by weight: 55 parts of natural rubber, 28 parts of aromatic polyether type thermoplastic polyurethane elastomer, 14 parts of acyl chloride-terminated fluororubber, 5.5 parts of vulcanizing agent, 3.5 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 7.5 parts of waste polyaromatic oxadiazole fiber, 3.5 parts of nano molybdenum disulfide, 38 parts of reinforcing filler, 4.5 parts of glass fiber, 4.5 parts of coupling agent, 2.8 parts of 4,4' -diacyl diphenyl ether, 2.5 parts of stearic acid, 4.5 parts of nano metal oxide, 1.8 parts of naphthenic oil and 4 parts of accelerator.
The accelerator is a mixture formed by mixing 2-thiol benzothiazole and 2-dibenzothiazyl disulfide 3:5 in a mass ratio; the nano metal oxide is a mixture formed by mixing nano zinc oxide and nano magnesium oxide according to the mass ratio of 1:3; the particle size of the nano metal oxide is 350nm; the coupling agent is a mixture formed by mixing a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH570 in a mass ratio of 1; the glass fiber has an average diameter of 8 μm and an aspect ratio of 28; the waste polyaromatic oxadiazole fiber is a waste product of polyester staple fiber, the average diameter of the waste polyaromatic oxadiazole fiber is 8 microns, and the length-diameter ratio of the waste polyaromatic oxadiazole fiber is 28; the reinforcing filler is a mixture formed by mixing white carbon black and calcium carbonate according to the mass ratio of 3:5; the particle size of the reinforcing filler is 1100 meshes; the particle size of the nano molybdenum disulfide is 450nm; the vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber masterbatch SCRWF.
The acyl chloride-terminated fluororubber is prepared from 26 type liquid carboxyl-terminated fluororubber (Mn =3450, -COOH% =2.5 mass fraction) through acylation reaction, wherein the conversion rate of terminal groups is 86.57%, and the preparation method is as follows: li Donghan, liao Mingyi, research on synthesis of liquid terminal acyl chloride-based fluororubber by using different acylation reagents [ J ] rubber and plastic technology and equipment, 23 years in 2017.
A preparation method of the high-friction conveyor belt material comprises the following steps: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on canvas; vulcanizing and molding on a flat vulcanizing machine; the roll temperature in the mixing is 75 ℃, and the mixing time is 9min; the vulcanization temperature of the vulcanization molding is 158 ℃, the pressure is 14MPa, and the vulcanization time is 11min.
Example 5
A high-friction conveyor belt material is prepared from the following raw materials in parts by weight: 60 parts of natural rubber, 30 parts of aromatic polyether type thermoplastic polyurethane elastomer, 15 parts of acyl chloride-terminated fluororubber, 6 parts of vulcanizing agent, 4 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 3 parts of waste polyaryl oxadiazole fiber, 4 parts of nano molybdenum disulfide, 40 parts of reinforcing filler, 5 parts of glass fiber, 5 parts of coupling agent, 3 parts of 4,4' -diacyl chloride diphenyl ether, 3 parts of stearic acid, 5 parts of nano metal oxide, 2 parts of naphthenic oil and 5 parts of accelerator.
The promoter is 2-thiol benzothiazole; the nano metal oxide is nano magnesium oxide; the particle size of the nano metal oxide is 400nm; the coupling agent is a silane coupling agent KH550; the glass fiber has an average diameter of 9 μm and an aspect ratio of 30; the waste polyaromatic oxadiazole fiber is a product obtained by discarding a polyester staple fiber, and has an average diameter of 9 mu m and a length-diameter ratio of 30; the reinforcing filler is calcium carbonate; the particle size of the reinforcing filler is 1200 meshes; the particle size of the nano molybdenum disulfide is 500nm; the vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber master batch SCRWF.
The acyl chloride-terminated fluororubber is prepared from 26 type liquid carboxyl-terminated fluororubber (Mn =3450, -COOH% =2.5 mass fraction) through acylation reaction, wherein the conversion rate of the terminal group is 86.57%, and the preparation method is as follows: li Donghan, liao Mingyi, research on the synthesis of liquid end acyl chloride-based fluororubbers by using different acylating reagents [ J ] rubber and plastic technology and equipment, 23 years 2017.
A preparation method of the high-friction conveyor belt material comprises the following steps: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on cord fabric; vulcanizing and molding on a flat vulcanizing machine; the roll temperature in the mixing is 80 ℃, and the mixing time is 10min; the vulcanization temperature of the vulcanization molding is 160 ℃, the pressure is 15MPa, and the vulcanization time is 12min.
Comparative example 1
A high friction conveyor belt material having substantially the same formulation and method of manufacture as in example 1, except that 2,4-diamino-6-phenyl-1,3,5-triazine and nano molybdenum disulfide were not added.
Comparative example 2
The formula and the preparation method of the high-friction conveyor belt material are basically the same as those in the example 1, but waste polyaryloxadiazole fibers and 4,4' -diacyl chloride diphenyl ether are not added.
To further illustrate the unexpected positive technical effects achieved by the products of the embodiments of the present invention, the high friction conveyor belt materials made in the embodiments were tested for their relevant performance, the test results are shown in table 1, and the test methods are as follows: the wear resistance is determined according to GB/T9867-2008A, the rebound rate is tested according to GB/T1681-2009, the tensile strength is tested according to GB/T528-2009, the aging resistance is tested according to GB/T3512-2014, the aging temperature is 125 ℃, the aging time is 7 days, and the change rate of the tensile strength is used for measurement.
As can be seen from table 1, the high-friction conveyor belt material disclosed in the embodiment of the present invention has more excellent wear resistance, resilience, mechanical properties and aging resistance compared with the comparative example product, and meets the use requirements of the high-friction conveyor belt material.
TABLE 1
| Item | Amount of wear | Rebound resilience | Tensile strength | Aging resistance |
| Unit of | mm3 | ％ | MPa | ％ |
| Example 1 | 75 | 58 | 22.3 | -1.18 |
| Example 2 | 70 | 61 | 23.1 | -1.03 |
| Example 3 | 62 | 63 | 23.7 | -0.83 |
| Example 4 | 54 | 64 | 24.2 | -0.65 |
| Example 5 | 50 | 66 | 24.5 | -0.53 |
| Comparative example 1 | 103 | 50 | 20.2 | -3.84 |
| Comparative example 2 | 110 | 52 | 18.5 | -2.79 |
The foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention in any way; those of ordinary skill in the art can readily practice the present invention as described herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. The high-friction conveyor belt material is characterized by comprising the following raw materials in parts by weight: 40-60 parts of natural rubber, 20-30 parts of aromatic polyether type thermoplastic polyurethane elastomer, 10-15 parts of acyl chloride-terminated fluorine rubber, 3-6 parts of vulcanizing agent, 2-4 parts of aluminum chloride, 2,4-diamino-6-phenyl-1,3,5-triazine, 5-8 parts of waste polyaromatic oxadiazole fiber, 1-4 parts of nano molybdenum disulfide, 25-40 parts of reinforcing filler, 3-5 parts of glass fiber, 3-5 parts of coupling agent, 2-3 parts of 4,4' -diacyl chloride diphenyl ether, 1-3 parts of stearic acid, 3-5 parts of nano metal oxide, 1-2 parts of naphthenic oil and 1-5 parts of accelerator.
2. The high friction conveyor belt material of claim 1 wherein the accelerator is at least one of 2-mercaptobenzothiazole and 2-dibenzothiazyl disulfide; the nano metal oxide is at least one of nano zinc oxide and nano magnesium oxide; the particle size of the nano metal oxide is 100-400nm.
3. The high-friction conveyor belt material of claim 1, wherein the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560, and a silane coupling agent KH 570.
4. A high friction conveyor belt material as in claim 1 wherein the glass fibers have an average diameter of 3 to 9 μm and an aspect ratio (20-30): 1; the waste polyaryloxadiazole fiber is a waste product of polyester staple fiber; the average diameter is 3-9 μm, and the length-diameter ratio is (20-30): 1.
5. A high friction conveyor belt material as in claim 1 wherein the reinforcing filler is at least one of white carbon black and calcium carbonate; the grain size of the reinforcing filler is 800-1200 meshes; the particle size of the nano molybdenum disulfide is 300-500nm.
6. A high friction conveyor belt material as claimed in claim 1 wherein said vulcanizing agent is sulfur; the aromatic polyether type thermoplastic polyurethane elastomer is Haorui 68887; the natural rubber is domestic natural rubber master batch SCRWF.
7. A method of manufacturing a high friction conveyor belt material according to any of claims 1 to 6, comprising the steps of: mixing the raw materials in parts by weight, adding the mixture into an open rubber mixing mill, mixing to form belt rubber, and covering the belt rubber on cord fabric or canvas; and (4) vulcanizing and molding on a vulcanizing press.
8. The method for preparing a high-friction conveyor belt material as claimed in claim 7, wherein the roll temperature in the mixing is 60-80 ℃, and the mixing time is 5-10min; the vulcanization temperature of the vulcanization molding is 145-160 ℃, the pressure is 10-15MPa, and the vulcanization time is 8-12min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109762212A (en) * | 2018-11-28 | 2019-05-17 | 青岛环球输送带有限公司 | A kind of super abrasive conveyer belt and its preparation process |
| CN110041575A (en) * | 2019-03-27 | 2019-07-23 | 江阴市斯强传动科技有限公司 | A kind of high-wearing feature box gluing machine conveyer belt rubber friction layer and preparation method thereof |
| CN111154191A (en) * | 2019-12-25 | 2020-05-15 | 浙江环能传动科技有限公司 | High-temperature-resistant corrosion-resistant conveying belt and preparation method thereof |
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| CN108314849B (en) * | 2017-01-13 | 2021-05-14 | 杭州星庐科技有限公司 | Rubber composition and processing method thereof, adhesive tape and rubber roller using rubber composition and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109762212A (en) * | 2018-11-28 | 2019-05-17 | 青岛环球输送带有限公司 | A kind of super abrasive conveyer belt and its preparation process |
| CN110041575A (en) * | 2019-03-27 | 2019-07-23 | 江阴市斯强传动科技有限公司 | A kind of high-wearing feature box gluing machine conveyer belt rubber friction layer and preparation method thereof |
| CN111154191A (en) * | 2019-12-25 | 2020-05-15 | 浙江环能传动科技有限公司 | High-temperature-resistant corrosion-resistant conveying belt and preparation method thereof |
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