Process for producing rubber reinforcing filler by utilizing papermaking waste white mud dry method

A technology of reinforcing filler and lime mud, which is applied in the field of rubber reinforcing filler, can solve problems such as complicated procedures, excessive waste liquid, and poor product quality, and achieve the effects of simple production process, large economic benefits, and low production cost

Pending Publication Date: 2022-05-13
潍坊洪流橡塑填料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing technology of using papermaking waste white mud to produce rubber reinforcing filler is still immature, and there are problems such as complex process, more waste liquid, and poor product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 A process for producing rubber reinforcing filler by dry method of papermaking waste lime mud

[0028] Include the following steps:

[0029] 1. Dry the papermaking waste white mud until the moisture content is 1%. The white mud: the dry matter content of calcium carbonate is 90%, the dry matter content of sodium hydroxide is 2%, and the dry matter content of silicon dioxide is 7.2%.

[0030] 2. Put the dried papermaking waste white mud into the high-speed mixer, turn on the heating, raise the temperature of the material to 70°C, then add stearic acid in the molten state, and carry out preliminary stirring and mixing. The stirring rate is 600r / min, stirring 4min, the mixed material A was obtained. The addition of stearic acid is 1.2% of the lime mud quality.

[0031] 3. Mix titanate coupling agent and paraffin oil and stir evenly to form material B.

[0032] Stir the mixed material A in the high-speed mixer for 6 minutes, then add the material B into the mi...

Embodiment 2

[0036] Example 2 A process for producing rubber reinforcing filler by dry method of papermaking waste white mud

[0037] Include the following steps:

[0038] 1. Dry the papermaking waste white mud until the moisture content is 1.2%. The white mud: the dry matter content of calcium carbonate is 85%, the dry matter content of sodium hydroxide is 3%, and the dry matter content of silicon dioxide is 6.8%.

[0039] 2. Put the dried papermaking waste white mud into the high-speed mixer, turn on the heating, raise the temperature of the material to 76°C, then add the stearic acid in the molten state, and carry out preliminary stirring and mixing. The stirring rate is 650r / min, stirring 6min, the mixed material A was obtained. The addition of stearic acid is 1% of the quality of white clay.

[0040] 3. Mix titanate coupling agent and paraffin oil and stir evenly to form material B;

[0041] Stir the mixed material A in the high-speed mixer for 5 minutes, then add the material B i...

Embodiment 3

[0045] Example 3 A process for producing rubber reinforcing filler by dry method of papermaking waste white mud

[0046] Include the following steps:

[0047] 1. Dry the papermaking waste white mud until the moisture content is 2%. The white mud: the dry matter content of calcium carbonate is 83%, the dry matter content of sodium hydroxide is 4%, and the dry matter content of silicon dioxide is 6.3%.

[0048] 2. Put the dried papermaking waste white mud into the high-speed mixer, turn on the heating, raise the temperature of the material to 80°C, then add the stearic acid in the molten state, and carry out preliminary stirring and mixing. The stirring rate is 700r / min, stirring 5min, the mixed material A was obtained. The addition of stearic acid is 1% of the quality of white clay.

[0049] 3. Stir the mixed material A in the high-speed mixer for 4 minutes, then add the material B into the mixed material A to obtain the mixed material C. The material B is an aluminate coup...

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Abstract

The invention belongs to the technical field of rubber reinforcing fillers. The invention provides a process for producing a rubber reinforcing filler by using a papermaking waste white mud dry method. The process comprises the following steps: drying, primarily melting, adding a coupling agent, reacting and grinding. In the drying step, the papermaking waste white mud is dried; the primary melting comprises the following steps: putting the dried papermaking waste white mud into a high-speed mixer, starting heating, raising the temperature of the material to 70-80 DEG C, then adding stearic acid in a molten state, and carrying out primary stirring and mixing, so as to obtain a mixed material A; the step of adding the coupling agent comprises the following steps: stirring the mixed material A in the high-speed mixer for 4-6 minutes, and then adding the material B into the mixed material A to obtain a mixed material C; the material B is a mixed solution of a titanate coupling agent and paraffin oil or an aluminate coupling agent. And reacting to obtain the product. The process is simple, no waste liquid is generated, the product quality is good, and the reinforcing effect on rubber is remarkable.

Description

technical field [0001] The invention relates to a production process of rubber reinforcing filler, in particular to a process for producing rubber reinforcing filler by using papermaking waste lime mud dry method, and belongs to the technical field of rubber reinforcing filler. Background technique [0002] Conveyor belts are an integral part of the mechanization and automation of material handling systems. Since the conveyor belt needs to provide load-bearing and conveying work during use, it is inevitable to face problems such as wear, scratches, and damage to the conveyor belt. [0003] Polymer rubber material is currently the most important raw material for conveyor belt production. In order to enhance the wear resistance and scratch resistance of polymer rubber materials, it is often necessary to add a certain amount of rubber reinforcing filler. Due to the influence of various physical and chemical properties of rubber reinforcing fillers, the amount of rubber reinfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K3/26C08K3/22C08K3/36C08K5/09C08L7/00C02F11/13C02F11/18C02F103/28
CPCC08K9/04C08K9/08C08K3/26C08K3/22C08K3/36C08K5/09C02F11/13C02F11/18C02F2103/28C08K2003/265C08L7/00
Inventor 牟聪聪
Owner 潍坊洪流橡塑填料有限公司
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