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A Steel Slag-Red Mud Composite Rubber Filler with Reinforcement-Flame Retardant Synergistic Properties

A compound rubber and red mud technology, applied in the field of solid waste resource recycling, can solve the problems of high price of filler carbon black and white carbon black, poor compatibility, easy agglomeration of steel slag and red mud, etc. Flame retardant performance, promoting synergy, and realizing the effect of recycling

Active Publication Date: 2019-04-16
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the price of carbon black and white carbon black, the main fillers in the existing rubber industry, is high, steel slag and red mud are directly added to rubber, and agglomeration easily occurs, and the compatibility between the inorganic interface of steel slag-red mud and the organic interface of rubber is poor. Problem, the present invention provides a steel slag-red mud composite rubber filler with reinforcing-flame retardant synergistic properties, in order to solve the above problems

Method used

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  • A Steel Slag-Red Mud Composite Rubber Filler with Reinforcement-Flame Retardant Synergistic Properties
  • A Steel Slag-Red Mud Composite Rubber Filler with Reinforcement-Flame Retardant Synergistic Properties
  • A Steel Slag-Red Mud Composite Rubber Filler with Reinforcement-Flame Retardant Synergistic Properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0022]

[0023] The mass fraction of the phosphoric acid solution is 75%; the silane coupling agent is industrially pure; the stearic acid is analytically pure; the red mud is sintered red mud, and its chemical composition (mass fraction) is SiO 2 (22.91%), Al 2 o 3 (4.57%), CaO (51.87%), Fe 2 o 3 (7.84%), MgO (1.01%), Na 2 O (3.23%) and others (8.57%); the steel slag is molten iron desulfurization slag, its particle size is 4.70 μm to 90.29 μm, and its chemical composition (mass fraction) is SiO 2 (15.32%), Fe 2 o 3 (12.64%), Al 2 o 3 (5.47%), CaO (51.34%), MgO (3.47%), P 2 o 5 (0.50%), MnO (0.80%), SO 3 (2.06%) and others (8.40%).

[0024] First, mix the phosphoric acid solution and steel slag, and use a constant temperature magnetic stirrer to stir it at room temperature for 4 hours to obtain porous steel slag; then mix t...

Embodiment 2

[0026] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0027]

[0028]

[0029] The mass fraction of the phosphoric acid solution is 85%; the silane coupling agent is industrially pure; the stearic acid is analytically pure; the red mud is Bayer process red mud, and its chemical composition (mass fraction) is SiO 2 (18.67%), Al 2 o 3 (23.04%), CaO (16.03%), Fe 2 o 3 (22.76%), MgO (1.21%), Na 2 O (10.42%) and others (7.87%); the steel slag is casting slag, its particle size is 5.04 μm ~ 105.30 μm, and its chemical composition (mass fraction) is SiO 2 (10.0%~18.0%), Fe 2 o 3 (10.0%~35.0%), Al 2 o 3 (2.0%~12.0%), CaO(35.0%~55.0%), MgO(3.0%~7.0%), P 2 o 5 (0.5%~1.0%), MnO(0.5%~4.0%), SO 3 (0.1% to 3.0%) and others (4.0% to 9.0%).

[0030] First, mix the phosphoric acid solution and steel slag, and use a constant temperature magnetic stirrer to stir it at room temperature for 6 ho...

Embodiment 3

[0032] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0033]

[0034] The mass fraction of the phosphoric acid solution is 95%; the silane coupling agent is industrially pure; the stearic acid is analytically pure; the red mud is mixed method red mud, and its chemical composition (mass fraction) is SiO 2 (23.38%), Al 2 o 3 (12.83%), CaO (28.47%), Fe 2 o 3 (15.60%), MgO (0.98%), Na 2O (6.56%) and others (12.18%); the steel slag is converter hot slag, its particle size is 5.48 μm ~ 104.30 μm, and its chemical composition (mass fraction) is SiO 2 (11.06%), Fe 2 o 3 (24.40%), Al 2 o 3 (2.30%), CaO (46.78%), MgO (5.75%), P 2 o 5 (0.91%), MnO (2.19%), SO 3 (0.23%) and others (6.38%).

[0035] First, mix the phosphoric acid solution and steel slag, and use a constant temperature magnetic stirrer to stir it at room temperature for 5 hours to obtain porous steel slag; then mix the porou...

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Abstract

The invention discloses a steel slag-red mud composite rubber filler with reinforcing-flame-retardant synergistic properties and a preparation method thereof, belonging to the field of solid waste resource recycling. The composite rubber filler formula includes phosphoric acid solution, silane coupling agent, stearic acid, red mud and steel slag. Its preparation method: first mix phosphoric acid solution with steel slag to obtain porous steel slag; then mix porous steel slag with red mud to obtain steel slag-red mud mixture; finally mix steel slag-red mud mixture with silane coupling agent, hard mixed with ester acid to obtain steel slag-red mud composite rubber filler. The invention solves the problems that the price of carbon black and white carbon black, the main fillers in the rubber industry, is relatively high, steel slag and red mud are directly added to rubber, and agglomeration easily occurs, and the compatibility between the inorganic interface of steel slag-red mud and the organic interface of rubber is poor. question. It not only improves the mechanical properties and flame retardant properties of rubber, but also realizes the recycling of industrial waste, which meets the development requirements of the current industry.

Description

technical field [0001] The invention belongs to the field of recycling of solid waste resources, and in particular relates to a steel slag-red mud composite rubber filler with reinforcing-flame-retardant synergistic performance and a preparation method thereof. Background technique [0002] Steel slag is solid waste produced in the steelmaking process, accounting for about 15% to 20% of steelmaking output. Steel slag is mainly composed of oxides of calcium, iron, silicon, magnesium and a small amount of aluminum, manganese, phosphorus, etc., that is, SiO 2 , Fe 2 o 3 、Al 2 o 3 , ZnO, CaO, MgO, P 2 o 5 , MnO, SO 3 etc., also contains a small amount of free calcium oxide and metallic iron. Red mud is the waste residue produced in the alumina production process, and its main component is SiO 2 , CaO, Fe 2 o 3 、Al 2 o 3 、Na 2 O, TiO 2 、K 2 O, etc. In addition, it also contains caustic soda and trace non-ferrous metals. At present, the stockpiling of a large amou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/08C08K13/06C08K9/06C08K9/04C08K11/00C08K7/24C08K3/22C08K3/36C08L9/06C08L7/00
CPCC08K3/22C08K3/36C08K7/24C08K9/04C08K9/06C08K11/005C08K13/06C08K13/08C08L2201/02C08L9/06C08L7/00
Inventor 张浩徐远迪龙红明春铁军唐刚魏汝飞
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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