A kind of method of modified pyrolysis carbon black
A carbon black and modification technology, applied in the field of modified cracking carbon black, can solve the problems of incomplete cracking reaction, difficult filtration, low reinforcement performance, etc., and achieve the effect of improving the purity and improving the reinforcement effect.
Active Publication Date: 2021-06-15
珠海格力绿色再生资源有限公司
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Since the tire itself contains solid components such as zinc oxide and white carbon black, and the cracking reaction is not complete, the resulting carbon black contains impurities such as tar oil and ash, which seriously affects the quality and has low reinforcing performance. The effective treatment method improves its performance and economic value
[0004] In the current patents and documents, the treatment of pyrolysis carbon black mainly focuses on the following technical directions: (1) solvent cleaning can remove tar, but filtration is difficult, and industrialization is difficult to implement; (2) microwave cracking, there is no mature industrialization case at present. , high energy consumption, unable to remove ash; (3) Coupling agent treatment, complex process, high cost; (4) Acid washing to remove ash, alkali washing to remove ash, bringing new problems in wastewater treatment, slow filtration speed, and difficult industrialization
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0062] Take 12g sodium hydroxide and dissolve in 25g deionized water to form an alkaline solution, and dissolve 10g of natural rubber emulsion with a solid content of 60% in the above-mentioned alkaline solution to obtain a mixed solution;
[0063] 100g waste tire pyrolysis carbon black is dissolved in the above-mentioned mixed solution, wherein the solid rubber in the natural rubber emulsion is 6% of the pyrolysis carbon black quality, and sodium hydroxide is 12% of the pyrolysis carbon black quality;
[0064] Stir and mature at 60°C for 60 minutes to obtain a carbon black mixture;
[0065] Evaporate and dry the matured carbon black mixture at 80-90°C, and recycle the evaporated water;
[0066] The dried carbon black was granulated with a granulator, and the 300% modulus of the treated carbon black was 8.25 MPa.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| tensile strength | aaaaa | aaaaa |
| tensile strength | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a modification method of pyrolysis carbon black. The method includes treating the pyrolysis carbon black with rubber latex. The method provided by the invention adopts the principle of alkali washing + polymer wrapping, dissolves strong alkali in rubber emulsion, emulsifies and absorbs organic impurities on carbon black into the emulsion, and dissolves zinc oxide and white carbon black (silicon dioxide) in strong alkali middle. Due to the encapsulation of rubber polymers on low-molecular compounds, the solid components after drying will remain in the corresponding polymer materials, thereby cleaning the carbon black, exposing active points, and restoring the original reinforcing performance.
Description
technical field [0001] The invention relates to a method for modifying and cracking carbon black. Background technique [0002] Carbon black is one of the most widely used and most important reinforcing fillers in the rubber industry. It has a good reinforcing effect and can improve some specific properties of rubber. The main component of waste tire pyrolysis carbon black is the carbon black added in the tire production process, and the application of pyrolysis carbon black as rubber reinforcing filler to rubber products has attracted more and more attention. As one of the pyrolysis products of waste tires, pyrolysis carbon If black can partially or completely replace some brands of commercial carbon black, it will not only realize the recycling of resources and have a positive impact on the environment, but will also greatly reduce the production costs of enterprises, increase the profits of the waste tire cracking industry, and maximize the benefits change. [0003] Sin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K9/04C08K9/02C08K3/04
CPCC08K3/04C08K9/02C08K9/08C08K9/10
Inventor 罗云陈龙王九飙庄培张青秦邦保杨圣月姚璎珈周文明
Owner 珠海格力绿色再生资源有限公司