Anti-adhesion super wear-resistant conveyor belt

Abstract

The present application relates to the technical field of conveying belt, and proposes an anti-adhesion super wear-resistant conveying belt, which comprises, from top to bottom, top cover rubber, belt core and bottom cover rubber; the raw materials of the top cover rubber and the bottom cover rubber each independently comprise the following components in parts by mass: natural rubber 60 parts, butadiene rubber 40 parts, filler 40-60 parts, vulcanizing agent 1-3 parts, accelerator 1.5-3.5 parts, activator 5-10 parts, plasticizer 5-15 parts, anti-aging agent 2-4 parts, adhesive 2-5 parts, and anti-adhesion agent 3-8 parts; the anti-adhesion agent is (mercapto propyl) methyl siloxane-dimethyl siloxane copolymer. Through the above technical solution, the problem of poor wear resistance and anti-adhesion of the conveying belt in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt technology, and more specifically, to an anti-adhesion, ultra-wear-resistant conveyor belt. Background Technology

[0002] Conveyor belts are components used to carry materials and transmit traction force. They are also the most expensive and least durable components in conveyors. During conveyor operation, the conveyor belt is subjected to various loads of different natures and magnitudes, operating under complex stress states, which easily leads to varying degrees of wear and tear, resulting in a significant reduction in service life. Therefore, the wear resistance of conveyor belts has always been a major concern. Furthermore, the anti-adhesion properties of conveyor belts also affect their service life. When the anti-adhesion properties are poor, transported materials easily adhere to the conveyor belt surface, causing wear and tear, reducing the belt's lifespan, and affecting transportation efficiency. Therefore, improving the wear resistance and anti-adhesion properties of conveyor belts is a pressing technical challenge that needs to be addressed in this field. Summary of the Invention

[0003] This invention proposes an anti-adhesion, ultra-wear-resistant conveyor belt, which solves the problem of poor wear resistance and anti-adhesion properties of conveyor belts in related technologies.

[0004] The technical solution of the present invention is as follows:

[0005] An anti-adhesion, ultra-wear-resistant conveyor belt comprises, from top to bottom, an upper cover rubber, a belt core, and a lower cover rubber. The raw materials of the upper and lower cover rubbers each independently comprise the following components in parts by weight: 60 parts natural rubber, 40 parts butadiene rubber, 40-60 parts filler, 1-3 parts vulcanizing agent, 1.5-3.5 parts accelerator, 5-10 parts activator, 5-15 parts plasticizer, 2-4 parts antioxidant, 2-5 parts adhesive, and 3-8 parts anti-adhesion agent.

[0006] The anti-adhesion agent is a (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer.

[0007] As a further technical solution, the molar content of (mercaptopropyl)methylsiloxane in the (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer is 2% to 17%, for example, it can be one or more of 2% to 3%, 4% to 6%, and 13% to 17%, with the preferred molar content being 4% to 6%.

[0008] This invention defines the (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer as a (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a (mercaptopropyl)methylsiloxane molar content of 4% to 6%, which further improves the wear resistance and anti-adhesion properties of the conveyor belt.

[0009] As a further technical solution, the filler is an amino acid anhydride compound modified filler.

[0010] The present invention improves the wear resistance of conveyor belts by adding amino acid anhydride compounds to modify the filler. This is because the anhydride groups in the amino acid anhydride compounds can react with the hydroxyl groups on the filler surface, thereby improving the inorganic nature of the filler surface and enhancing the compatibility between the filler and the conveyor belt matrix.

[0011] As a further technical solution, the raw materials for the amino acid anhydride-modified filler include amino acid anhydride compounds and fillers in a mass ratio of 0.3~0.8:10.

[0012] The present invention limits the mass ratio of amino acid anhydride compounds and fillers to 0.3~0.8:10, which further improves the wear resistance of the conveyor belt.

[0013] As a further technical solution, the amino acid anhydride compound can be any compound containing amino and anhydride groups, preferably 4-amino-1,8-naphthalenedicarboxylic anhydride.

[0014] As a further technical solution, the preparation method of the amino acid anhydride-modified filler includes the following steps: dissolving the amino acid anhydride compound in a solvent, adding the filler, and reacting to obtain the amino acid anhydride-modified filler.

[0015] As a further technical solution, the solvent can be any solvent that can dissolve amino acid anhydride compounds, preferably dimethyl sulfoxide.

[0016] As a further technical solution, the reaction temperature is preferably 150~160℃, more preferably 155℃; the reaction time is preferably 1~3h, more preferably 2h.

[0017] As a further technical solution, the filler includes one or two of carbon black and silica.

[0018] As a further technical solution, the mass ratio of the anti-adhesion agent to the amino acid anhydride-modified filler is 1:9~11.

[0019] This invention limits the mass ratio of anti-adhesion agent and amino acid anhydride modified filler to 1:9~11, which further improves the wear resistance of the conveyor belt.

[0020] As a further technical solution, the vulcanizing agent includes one or two of sulfur and peroxide;

[0021] The accelerator includes one or both of accelerator CZ and accelerator H.

[0022] As a further technical solution, the activator includes one or more of zinc oxide, stearic acid, and magnesium oxide.

[0023] As a further technical solution, the plasticizer includes one or two of coumarone resin and aromatic oil;

[0024] The antioxidant includes one or more of antioxidant MB, antioxidant RD, and antioxidant 4010NA.

[0025] As a further technical solution, the adhesive includes one or more of adhesive HE, adhesive RS, and adhesive RH.

[0026] As a further technical solution, the core is made of polyester canvas.

[0027] The working principle and beneficial effects of this invention are as follows:

[0028] The addition of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer as an anti-adhesion agent in this invention not only reduces the adhesion of the conveyor belt surface but also improves the wear resistance of the conveyor belt. This solves the problem of poor wear resistance and anti-adhesion properties of conveyor belts in existing technologies, thus achieving the effect of extending the service life of the conveyor belt. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] The parameters of the raw materials in the following examples and comparative examples are as follows:

[0031] The natural rubber is SMR20 natural rubber;

[0032] Butadiene rubber is BR9000;

[0033] Carbon black is carbon black N234; silica is silica N255.

[0034] Coumarone resin is Coumarone resin Novales C100;

[0035] Kinematic viscosity of aromatic oil (100℃): 33 mm 2 / s, density (20℃) 1.08g / m³ 2 Aromatic hydrocarbon content 80wt%.

[0036] Example 1

[0037] S1. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 2%~3% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0038] S2. Prepare the undercoat adhesive using the same method as S1;

[0039] S3. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0040] Example 2

[0041] S1. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of silica, 5 parts of stearic acid, 3 parts of magnesium oxide, 10 parts of aromatic oil, 3 parts of antioxidant RD, 3 parts of adhesive RH, and 3 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 2%~3% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 2 parts of sulfur and 2.5 parts of accelerator H and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0042] S2. Prepare the undercoat adhesive using the same method as S1;

[0043] S3. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0044] Example 3

[0045] S1. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of silica, 5 parts of stearic acid, 2 parts of zinc oxide, 3 parts of magnesium oxide, 5 parts of coumarone resin, 10 parts of aromatic oil, 3 parts of antioxidant RD, 1 part of antioxidant 4010NA, 3 parts of adhesive RH, 2 parts of adhesive RS, and 8 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 2%~3% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 3 parts of di-tert-butyl peroxide diisopropylbenzene, 2.5 parts of accelerator H, and 1 part of accelerator CZ. Continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using a two-roll mill at 95℃ to obtain the top cover rubber.

[0046] S2. Prepare the undercoat adhesive using the same method as S1;

[0047] S3. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0048] Example 4

[0049] S1. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0050] S2. Prepare the undercoat adhesive using the same method as S1;

[0051] S3. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0052] Example 5

[0053] S1. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 13%~17% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0054] S2. Prepare the undercoat adhesive using the same method as S1;

[0055] S3. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0056] Example 6

[0057] S1. Dissolve 0.6 g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500 mL of dimethyl sulfoxide, add 60 g of carbon black, react at 155 °C for 2 h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0058] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0059] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0060] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0061] Example 7

[0062] S1. Dissolve 1.8g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0063] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0064] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0065] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0066] Example 8

[0067] S1. Dissolve 3g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0068] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0069] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0070] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0071] Example 9

[0072] S1. Dissolve 4.8g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0073] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0074] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0075] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0076] Example 10

[0077] S1. Dissolve 6g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0078] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 40 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0079] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0080] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0081] Example 11

[0082] S1. Dissolve 3g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0083] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 45 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0084] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0085] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0086] Example 12

[0087] S1. Dissolve 3g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0088] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 50 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0089] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0090] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0091] Example 13

[0092] S1. Dissolve 3g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0093] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 55 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0094] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0095] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0096] Example 14

[0097] S1. Dissolve 3g of 4-amino-1,8-naphthalenedicarboxylic anhydride in 500mL of dimethyl sulfoxide, add 60g of carbon black, react at 155℃ for 2h, separate the solid, and dry to obtain amino acid anhydride-modified carbon black.

[0098] S2. Add 60 parts of natural rubber, 40 parts of butadiene rubber, 60 parts of amino acid anhydride modified carbon black, 2 parts of stearic acid, 3 parts of zinc oxide, 5 parts of coumarone resin, 2 parts of antioxidant MB, 2 parts of adhesive HE, and 5 parts of (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer with a molar content of 4%~6% to a mixer. Mix at 135℃, 30r / min, and 0.45MPa for 4 minutes and discharge. After standing for 15 hours, add 1 part of sulfur and 1.5 parts of accelerator CZ and continue mixing at 80℃ and 20r / min for 2 minutes and discharge. After standing for 10 hours, extrude the rubber sheet using an open mill at 95℃ to obtain the top cover rubber.

[0099] S3. Prepare the undercoat adhesive using the same methods as S1 and S2;

[0100] S4. After covering the upper and lower surfaces of the polyester canvas with cover rubber and lower cover rubber respectively, vulcanize at 150℃ and 10MPa for 40 minutes to obtain the conveyor belt.

[0101] Comparative Example 1

[0102] The only difference from Example 1 is that (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer is not added.

[0103] The conveyor belts obtained in Examples 1-14 and Comparative Example 1 were subjected to abrasion resistance and anti-adhesion tests, and the test methods are as follows:

[0104] (1) Abrasion resistance: Refer to GB / T 1689-2014 "Determination of abrasion resistance of vulcanized rubber (using Akron abrasion tester)";

[0105] (2) Anti-adhesion: Take samples with a length of 30cm × width of 30cm × thickness of 5mm as test samples (the sampling position is 15cm away from the edge of the strip). Take 50g of S95 grade mineral powder slag and mix it with 5mL of water and spread it on the surface of the test sample. Press it with a 5kg weight, let it stand for 4h, pour out the wet mineral powder slag, and test the weight gain of the test sample after the test. Repeat the test 3 times and take the average value as the final result.

[0106] The test results are recorded in Tables 1 and 2.

[0107] Table 1. Abrasion resistance and anti-adhesion properties of conveyor belts

[0108]

[0109] Table 2 Abrasion resistance of conveyor belts

[0110]

[0111] As can be seen from Tables 1 and 2, the wear volume of the conveyor belt provided by the present invention is 0.082 cm³.3 The following test samples showed a weight gain of less than 0.63g, exhibiting good wear resistance and anti-adhesion properties.

[0112] Compared with Comparative Example 1, Example 1 added (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer, while Comparative Example 1 did not add (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer. The wear volume of the conveyor belt and the weight gain of the test sample obtained in Example 1 were lower than those in Comparative Example 1, indicating that adding (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer can improve the wear resistance and anti-adhesion of the conveyor belt.

[0113] Compared with Examples 6-10, Example 4 added carbon black, while Examples 6-10 added amino acid anhydride modified carbon black. The wear volume of the conveyor belts obtained in Examples 6-10 was lower than that in Example 4, indicating that the use of amino acid anhydride modified carbon black can further improve the wear resistance of the conveyor belt.

[0114] Compared with Examples 9 and 14, the wear volume of the conveyor belts obtained in Examples 11-13 was further reduced, indicating that the mass ratio of anti-adhesion agent to amino acid anhydride modified filler was 1:9-11, which further improved the wear resistance of the conveyor belt.

[0115] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anti-adhesion, ultra-wear-resistant conveyor belt, comprising, from top to bottom, an upper cover rubber, a belt core, and a lower cover rubber, characterized in that, The raw materials for the upper and lower cover rubbers each independently include the following components in parts by weight: 60 parts natural rubber, 40 parts butadiene rubber, 40-60 parts filler, 1-3 parts vulcanizing agent, 1.5-3.5 parts accelerator, 5-10 parts activator, 5-15 parts plasticizer, 2-4 parts antioxidant, 2-5 parts adhesive, and 3-8 parts anti-adhesion agent; The anti-adhesion agent is a (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer; the molar content of (mercaptopropyl)methylsiloxane in the (mercaptopropyl)methylsiloxane-dimethylsiloxane copolymer is 4%~6%; The filler is an amino acid anhydride-modified filler; the raw materials for the amino acid anhydride-modified filler include an amino acid anhydride compound and filler in a mass ratio of 0.3~0.8:

10.

2. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 1, characterized in that, The preparation method of the amino acid anhydride-modified filler includes the following steps: dissolving the amino acid anhydride compound in a solvent, adding the filler, and reacting to obtain the amino acid anhydride-modified filler.

3. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 2, characterized in that, The mass ratio of the anti-adhesion agent to the amino acid anhydride-modified filler is 1:9~11.

4. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 1, characterized in that, The filler includes one or both of carbon black and silica.

5. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 1, characterized in that, The vulcanizing agent includes one or two of sulfur and peroxide; The accelerator includes one or both of accelerator CZ and accelerator H.

6. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 1, characterized in that, The activator includes one or more of zinc oxide, stearic acid, and magnesium oxide.

7. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 1, characterized in that, The plasticizer includes one or two of coumarone resin and aromatic oil; The antioxidant includes one or more of antioxidant MB, antioxidant RD, and antioxidant 4010NA.

8. The anti-adhesion ultra-wear-resistant conveyor belt according to claim 1, characterized in that, The adhesive includes one or more of adhesive HE, adhesive RS, and adhesive RH.

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