Low-oil-absorption-value steel slag modifier for rubber filler and preparation method of low-oil-absorption-value steel slag modifier

Abstract

The invention discloses a low-oil-absorption-value steel slag modifier for rubber filler and a preparation method thereof, and belongs to the technical field of functional materials, the modifier disclosed by the invention comprises the following components in percentage by mass: 5-10% of polyethylene wax, 15-20% of a titanate coupling agent, 20-25% of fatty acid amide, 10-15% of acrylic resin and 32-48% of modified silicone oil. The liquid paraffin mainly comprises long-chain alkane, is insoluble in water and has good lubricity; the block silicone oil is a terpolymer of siloxane, polyamine and polyether, and the liquid paraffin is promoted to be better attached to the surface of the steel slag by utilizing the characteristic of self-emulsifying ability of the block silicone oil, so that the oil absorption value of the steel slag is reduced, and the compatibility of the steel slag and rubber is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of functional materials, and particularly relates to a low oil absorption value steel slag modifier for rubber fillers and its preparation method. Background Technology

[0002] Steel slag is a solid waste generated during the iron and steel metallurgical production process. It mainly consists of various oxides formed by the oxidation of impurities such as silicon, manganese, phosphorus, and sulfur in pig iron during smelting, as well as salts formed by the reaction of these oxides with solvents. Because the properties of steel slag (chemical composition, mineral composition, and main physical properties) are greatly influenced by many factors such as furnace charge, the type of steel being smelted, and the operating methods, there is no particularly effective method for direct treatment. Currently, its large-scale open-air stockpiling not only occupies valuable land but also pollutes the surrounding environment and groundwater. Many steel companies only simply recover the metal resources from the steel slag, failing to achieve complete "zero discharge" of the remaining tailings, making it the number one problem in solid waste treatment for iron and steel smelters.

[0003] Currently, in actual production processes, steel slag is mostly modified first, and then the modified steel slag is put into practical application. For example, Chinese patent CN 109534700 A discloses a steel slag modifier and its preparation method, which significantly accelerates the synthesis of minerals such as C2S, C3S, C3A, and C3AF from free calcium oxide, free magnesium oxide, and acidic oxides in steel slag powder, thereby effectively reducing the presence of free oxides (free-CaO, MgO) in steel slag powder. Moreover, when the doping content of steel slag powder modified by the steel slag modifier reaches 30%, the mechanical properties of cementitious substrates can approach those of cementitious substrates after 28 days.

[0004] Because steel slag particles are mostly irregular and have rough surfaces, they are prone to agglomeration and have poor dispersibility. This makes it difficult for them to be evenly distributed in the matrix material when used as a concrete admixture, thus affecting the material's performance. However, using steel slag as a rubber filler requires good dispersibility and low oil absorption. Since steel slag is inorganic and rubber is organic, there is an organic / inorganic incompatibility issue when combining them.

[0005] Therefore, how to utilize steel slag on a large scale as a rubber filler, requiring good dispersibility and low oil absorption value, in order to reduce environmental burden and increase enterprise efficiency, is an urgent problem that needs to be solved. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a low oil absorption value steel slag modifier for rubber fillers and its preparation method, which can solve the problems of poor dispersibility and high oil absorption value of traditional steel slag as rubber fillers.

[0007] In order to solve the above-mentioned technical problems, the inventors derived the technical solution of the present invention through practice and summary. The present invention discloses a low oil absorption value steel slag modifier for rubber fillers. The composition of each component by mass percentage is as follows: polyethylene wax 5~10%, titanate coupling agent 15~20%, fatty acid amide 20~25%, acrylic resin 10~15%, and modified silicone oil 32~48%.

[0008] Furthermore, by mass percentage, the proportions of each component are as follows: polyethylene wax 5-8%, titanate coupling agent 17-20%, fatty acid amide 20-23%, acrylic resin 12-15%, and modified silicone oil 43-45%.

[0009] Furthermore, by mass percentage, the proportions of each component are as follows: polyethylene wax 5%, titanate coupling agent 17%, fatty acid amide 20%, acrylic resin 15%, and modified silicone oil 43%.

[0010] Furthermore, the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, wherein the mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide is 1:2 to 2:1.

[0011] Furthermore, the acrylic resin is a thermosetting acrylic resin.

[0012] Furthermore, the modified silicone oil is a mixture of liquid paraffin and block silicone oil, wherein the mass ratio of liquid paraffin to block silicone oil is 1~1.5:10.

[0013] Furthermore, the preparation method of any of the above-mentioned low oil absorption value steel slag modifiers for rubber fillers comprises the following steps:

[0014] (1) Mix polyethylene wax, fatty acid amide and modified silicone oil, and stir with a constant temperature magnetic stirrer to obtain mixture A;

[0015] (2) Mix the titanate coupling agent with the acrylic resin and stir with a constant temperature magnetic stirrer to obtain mixture B;

[0016] (3) Mix mixture A and mixture B, and stir with a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0017] Furthermore, in step (1), the stirring temperature is 30~40℃; the stirring rate is 250~350r / min; and the stirring time is 30~45min.

[0018] Furthermore, in step (2), the stirring temperature is 30~40℃; the stirring rate is 250~350r / min; and the stirring time is 30~45min.

[0019] Furthermore, in step (3), the stirring temperature is 40~50℃; the stirring rate is 200~300r / min; and the stirring time is 60~90min.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) The present invention utilizes titanate coupling agent and thermosetting acrylic resin to perform cross-linking or reactive adhesion, so that the titanate groups in the titanate coupling agent can undergo complexation reaction between thermosetting acrylic resin molecules to build a network structure, which can achieve the effect of insoluble and infusible on the surface of steel slag, thereby reducing the oil absorption value of steel slag.

[0022] (2) The polyethylene wax used in this invention has a strong lubricating effect. Under the synergistic effect of fatty acid amides, the amide groups of palm oil diethanolamide and cottonseed oil diethanolamide form hydrogen bonds with the micelles of polyethylene wax to build a lubricating-dispersion system on the surface of steel slag, which solves the problem of steel slag agglomeration during rubber preparation and improves the compatibility of organic-inorganic interface.

[0023] (3) The liquid paraffin used in this invention is mainly composed of long-chain alkanes, which are insoluble in water and have good lubricity. The block silicone oil is a terpolymer of siloxane, polyamine and polyether. The block silicone oil has the property of self-emulsification, which promotes the liquid paraffin to adhere better to the surface of steel slag, reduces the oil absorption value of steel slag, and improves the compatibility between steel slag and rubber.

[0024] (4) This invention modifies steel slag by preparing a low oil absorption value steel slag modifier for rubber fillers, which expands the new ideas for high value-added application of steel slag and realizes its large-scale application in the rubber field. Attached Figure Description

[0025] Figure 1 The graph shows the oil absorption value test results of the steel slag modifiers in Examples 1-6 and Comparative Examples 1-3 of this invention.

[0026] Figure 2 The graph shows the test results of the dispersion performance of the steel slag modifier in Examples 1-6 and Comparative Examples 1-3 of the present invention. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to specific examples.

[0028] Unless otherwise specified, the raw materials or reagents used in the following examples and comparative examples are commercially available products or products prepared using conventional techniques.

[0029] The detection methods for steel slag modifiers in the following embodiments and comparative examples are as follows:

[0030] Oil absorption value test: The oil absorption value was determined according to the method of standard (GB / T 5211.15-2014);

[0031] Dispersion performance test: Anhydrous ethanol was used as the solvent. First, the solvent was poured into a dry container, and then the sample to be tested was added. The container was kept still, and the sedimentation behavior of the powder in the solvent at different times was observed. The dispersion performance was evaluated by comparing the amount of sedimentation of each powder at the same time.

[0032] Example 1

[0033] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0034] 10% polyethylene wax

[0035] Titanate coupling agent 15%,

[0036] Fatty acid amide 25%,

[0037] 10% acrylic resin

[0038] Modified silicone oil 40%;

[0039] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 1:2; the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1:10.

[0040] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0041] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 30 min at 350 r / min at 40℃ using a constant temperature magnetic stirrer to obtain mixture A;

[0042] (2) Mix the titanate coupling agent with the acrylic resin and stir for 45 minutes at 30°C and 250 r / min using a constant temperature magnetic stirrer to obtain mixture B;

[0043] (3) Finally, mix mixture A with mixture B and stir for 90 minutes at 50°C and 200 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0044] Example 2

[0045] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0046] 5% polyethylene wax

[0047] Titanate coupling agent 17%,

[0048] Fatty acid amide 20%,

[0049] 15% acrylic resin

[0050] Modified silicone oil 43%;

[0051] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 2:1; the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1.4:10.

[0052] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0053] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 45 minutes at 300 r / min with a constant temperature magnetic stirrer at 30℃ to obtain mixture A;

[0054] (2) Mix the titanate coupling agent with the acrylic resin and stir for 35 minutes at 40°C and 350 r / min using a constant temperature magnetic stirrer to obtain mixture B;

[0055] (3) Finally, mix mixture A with mixture B and stir for 60 minutes at 40°C and 260 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0056] Example 3

[0057] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0058] Polyethylene wax 9%,

[0059] Titanate coupling agent 20%,

[0060] Fatty acid amide 21%,

[0061] 13% acrylic resin

[0062] Modified silicone oil 37%;

[0063] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 1:1; the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1.3:10.

[0064] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0065] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 40 minutes at 35°C and 250 r / min using a constant temperature magnetic stirrer to obtain mixture A;

[0066] (2) Mix the titanate coupling agent with the acrylic resin and stir for 30 minutes at 300 r / min at 35°C using a constant temperature magnetic stirrer to obtain mixture B;

[0067] (3) Finally, mix mixture A with mixture B and stir for 70 minutes at 300 r / min at 46°C using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0068] Example 4

[0069] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0070] Polyethylene wax 6%,

[0071] Titanate coupling agent 19%,

[0072] Fatty acid amide 22%,

[0073] 14% acrylic resin

[0074] Modified silicone oil 39%;

[0075] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 2:1; the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1.1:10.

[0076] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0077] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 35 minutes at 40°C and 250 r / min using a constant temperature magnetic stirrer to obtain mixture A;

[0078] (2) Mix the titanate coupling agent with the acrylic resin and stir for 40 minutes at 35°C and 250 r / min using a constant temperature magnetic stirrer to obtain mixture B;

[0079] (3) Finally, mix mixture A with mixture B and stir for 80 minutes at 48°C and 220 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0080] Example 5

[0081] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0082] Polyethylene wax 7%,

[0083] Titanate coupling agent 18%,

[0084] Fatty acid amide 24%,

[0085] 11% acrylic resin

[0086] Modified silicone oil 40%;

[0087] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 1:2; the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1.2:10.

[0088] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0089] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 45 minutes at 350 r / min with a constant temperature magnetic stirrer at 30℃ to obtain mixture A;

[0090] (2) Mix the titanate coupling agent with the acrylic resin and stir for 30 min at 350 r / min at 40℃ using a constant temperature magnetic stirrer to obtain mixture B;

[0091] (3) Finally, mix mixture A with mixture B and stir for 80 minutes at 42°C and 280 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0092] Example 6

[0093] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0094] 8% polyethylene wax

[0095] Titanate coupling agent 16%,

[0096] Fatty acid amide 23%,

[0097] 12% acrylic resin

[0098] Modified silicone oil 41%;

[0099] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 1:1; the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1.3:10.

[0100] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0101] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 40 minutes at 300 r / min with a constant temperature magnetic stirrer at 35℃ to obtain mixture A;

[0102] (2) Mix the titanate coupling agent with the acrylic resin and stir for 45 minutes at 30°C and 300 r / min using a constant temperature magnetic stirrer to obtain mixture B;

[0103] (3) Finally, mix mixture A with mixture B and stir for 70 minutes at 44°C and 240 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0104] Comparative Example 1

[0105] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0106] 8% polyethylene wax

[0107] Titanate coupling agent 28%,

[0108] Fatty acid amide 23%,

[0109] Modified silicone oil 41%;

[0110] Among them, polyethylene wax is industrial grade; titanate coupling agent is industrial grade; fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 1:1; modified silicone oil is a mixture of liquid paraffin and block silicone oil, with a mass ratio of liquid paraffin to block silicone oil of 1.3:10.

[0111] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0112] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 40 minutes at 300 r / min with a constant temperature magnetic stirrer at 35℃ to obtain mixture A;

[0113] (2) Mix mixture A with titanate coupling agent and stir for 70 min at 44°C and 240 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber filler.

[0114] Comparative Example 2

[0115] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0116] Polyethylene wax 31%,

[0117] Titanate coupling agent 16%,

[0118] 12% acrylic resin

[0119] Modified silicone oil 41%;

[0120] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; and the acrylic resin is a thermosetting acrylic resin. The modified silicone oil is a mixture of liquid paraffin and block silicone oil, wherein the mass ratio of liquid paraffin to block silicone oil is 1.3:10.

[0121] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0122] (1) First, mix polyethylene wax with modified silicone oil and stir for 40 minutes at 300 r / min with a constant temperature magnetic stirrer at 35℃ to obtain mixture A;

[0123] (2) Mix the titanate coupling agent with the acrylic resin and stir for 45 minutes at 30°C and 300 r / min using a constant temperature magnetic stirrer to obtain mixture B;

[0124] (3) Finally, mix mixture A with mixture B and stir for 70 minutes at 44°C and 240 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0125] Comparative Example 3

[0126] A low oil absorption value steel slag modifier for rubber fillers, with the following component mass ratios:

[0127] 8% polyethylene wax

[0128] Titanate coupling agent 16%,

[0129] Fatty acid amide 23%,

[0130] 12% acrylic resin

[0131] Modified silicone oil 41%;

[0132] The polyethylene wax is industrial grade; the titanate coupling agent is industrial grade; the fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, with a mass ratio of palm oil diethanolamide to cottonseed oil diethanolamide of 1:1; the acrylic resin is a thermosetting acrylic resin; and the modified silicone oil is a block silicone oil.

[0133] The preparation method of the above-mentioned low oil absorption value steel slag modifier for rubber fillers includes the following steps:

[0134] (1) First, mix polyethylene wax, fatty acid amide and modified silicone oil, and stir for 40 minutes at 300 r / min with a constant temperature magnetic stirrer at 35℃ to obtain mixture A;

[0135] (2) Mix the titanate coupling agent with the acrylic resin and stir for 45 minutes at 30°C and 300 r / min using a constant temperature magnetic stirrer to obtain mixture B;

[0136] (3) Finally, mix mixture A with mixture B and stir for 70 minutes at 44°C and 240 r / min using a constant temperature magnetic stirrer to obtain a low oil absorption value steel slag modifier for rubber fillers.

[0137] The low oil absorption value steel slag modifiers for rubber fillers obtained in Examples 1-6 and Comparative Examples 1-3 were used to modify steel slag (800 mesh converter hot quenching steel slag tailings, of which MgO accounts for 9.027%, Al2O3 accounts for 3.805%, P2O5 accounts for 2.536%, CaO accounts for 35.193%, MnO accounts for 5.066%, Fe2O3 accounts for 26.650%, SiO2 accounts for 13.679%, and others account for 4.044%) at a total mass percentage. The modification method was as follows: the steel slag and the modifier were mixed and stirred for 10 minutes in a high-speed mixer. The performance of the modified steel slag was tested, and the results are shown in Table 1 below.

[0138] Table 1. Preparations in Examples 1-6 and Comparative Examples 1-3

[0139] Performance results of steel slag modified with low oil absorption steel slag modifier for rubber fillers

[0140]

[0141] Depend on Figure 1 , Figure 2 Compared with the low oil absorption value steel slag modifiers for rubber fillers obtained in Examples 1-6 of the present invention, the oil absorption of Examples 1-6 is significantly reduced, and the dispersibility is better, with no agglomeration. This invention addresses the problem that single titanate coupling agent modification cannot control the hydrogen bonds and hydroxyl groups on the steel slag surface, leading to poor modification effects and poor compatibility between modified steel slag and the rubber system. It utilizes the synergistic cross-linking or reactive adhesion of titanate coupling agent and thermosetting acrylic resin. The titanate coupling agent first condenses with the -OH groups on the steel slag surface to form a Ti-O-Si anchoring layer, which adheres to the steel slag surface. Its residual alkoxy / coordinating groups undergo ester exchange or coordination condensation with the -COOH / -OH groups of the thermosetting acrylic resin, forming a Ti-OC(=O)-R organic-inorganic hybrid network, achieving cross-linking between the titanate coupling agent and the thermosetting acrylic resin. Furthermore, the acrylic resin itself forms a CC backbone cross-linking network. The reaction consumes a certain amount of -OH groups, reducing the surface polarity of the steel slag. The resulting cross-linked network makes the surface of the steel slag denser and reduces porosity, thereby lowering the oil absorption value of the steel slag.

[0142] The polyethylene wax used in this invention has a strong lubricating effect. Under the synergistic effect of fatty acid amides, the amide groups of palm oil diethanolamide and cottonseed oil diethanolamide form hydrogen bonds with the micelles of polyethylene wax, thereby constructing a lubrication-dispersion system on the surface of steel slag. This solves the problem of steel slag agglomeration during rubber preparation and improves the compatibility of the organic-inorganic interface.

[0143] In addition, the liquid paraffin used in this invention is mainly composed of long-chain alkanes, which are insoluble in water and have good lubricity; the block silicone oil is a terpolymer of siloxane, polyamine and polyether. By utilizing the self-emulsifying property of the block silicone oil, the liquid paraffin is better adhered to the surface of steel slag, reducing the oil absorption value of steel slag and improving the compatibility between steel slag and rubber.

Claims

1. A low oil absorption value steel slag modifier for rubber fillers, characterized in that, The components are allocated in the following proportions by mass percentage: polyethylene wax 5-10%, titanate coupling agent 15-20%, fatty acid amide 20-25%, acrylic resin 10-15%, modified silicone oil 32-48%.

2. The low oil absorption value slag modifier for rubber filler according to claim 1, characterized by, The components are allocated in the following proportions by mass percentage: polyethylene wax 5-8%, titanate coupling agent 17-20%, fatty acid amide 20-23%, acrylic resin 12-15%, modified silicone oil 43-45%.

3. The low oil absorption value slag modifier for rubber filler according to claim 2, characterized by, The components are allocated in the following proportions by mass percentage: polyethylene wax 5%, titanate coupling agent 17%, fatty acid amide 20%, acrylic resin 15%, modified silicone oil 43%.

4. The low oil absorption value slag modifier for rubber filler according to claim 1, characterized by, The fatty acid amide is a mixture of palm oil diethanolamide and cottonseed oil diethanolamide, and the mass ratio of the palm oil diethanolamide to the cottonseed oil diethanolamide is 1:2-2:

1.

5. The low oil absorption value slag modifier for rubber filler according to claim 1, characterized by, The acrylic resin is a thermosetting acrylic resin.

6. The low oil absorption value slag modifier for rubber filler according to claim 1, characterized by, The modified silicone oil is a mixture of liquid paraffin and block silicone oil, and the mass ratio of the liquid paraffin to the block silicone oil is 1-1.5:

10.

7. A method for producing a low oil absorption value steel slag modifier for rubber fillers as claimed in any one of claims 1 to 6, characterized by, The steps are as follows: (1) The polyethylene wax, the fatty acid amide, and the modified silicone oil are mixed, and then a mixture A is obtained by stirring with a constant-temperature magnetic stirrer; (2) The titanate coupling agent and the acrylic resin are mixed, and then a mixture B is obtained by stirring with a constant-temperature magnetic stirrer; (3) The mixture A and the mixture B are mixed, and then a low oil absorption value slag modifier for rubber fillers is obtained by stirring with a constant-temperature magnetic stirrer.

8. The method of claim 7, wherein, In step (1), the stirring temperature is 30-40°C, the stirring rate is 250-350 r / min, and the stirring time is 30-45 min.

9. The preparation method according to claim 7, characterized in that, In step (2), the stirring temperature is 30-40°C, the stirring rate is 250-350 r / min, and the stirring time is 30-45 min.

10. The method of claim 7, wherein, In step (3), the stirring temperature is 40-50°C, the stirring rate is 200-300 r / min, and the stirring time is 60-90 min.

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