Method for extracting latex

A technology of latex and conveying device is applied in the field of latex extraction, which can solve the problems of high cost and large environmental pollution, and achieve the effects of high cost, large environmental pollution and cost saving.

Active Publication Date: 2019-02-22
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the reverse flocculation process is suitable for industrial continuous production and the product quality is stable, it is inevitable to use a large amount of flocculants, such as sulfuric acid, inorganic salts and other flocculants. Wastewater containing substances such as sulfate radicals needs to be treated, causing great environmental pollution

Method used

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  • Method for extracting latex
  • Method for extracting latex
  • Method for extracting latex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The positive electrode transmission device of the latex extraction device uses gold as the plate material, and the conductive electrode plate is the negative electrode. Pass 1000g of concentrated natural latex with a dry rubber mass content of 30% into the latex extraction device from the rubber inlet, and adjust the angle of the negative plate by 30° , adjust the distance between the conveyor belt and the full contact with the latex, adjust the DC voltage to 500V, introduce the film film condensed on the positive electrode into the spray cleaning device through the traction device for cleaning, the residual rubber in the clarified liquid is 0.5g, and pull it through the drying device. 100 ℃ hot air drying to constant weight, packaging to obtain finished rubber 299.5g. Take 100g of the above solid rubber, 5g of ZnO, 2g of stearic acid, 1g of anti-aging agent 1010NA, 30g of N330, 1.2g of accelerator CZ, 2g of sulfur, mix the rubber, measure the vulcanization curve and rub...

Embodiment 2

[0030] The positive electrode transmission device of the latex extraction device uses platinum as the plate material, and the conductive electrode plate is the negative electrode. Pass 1000g of concentrated natural latex with a dry glue mass content of 20% into the latex extraction device from the rubber inlet, and adjust the angle of the negative plate to 0° , adjust the distance between the conveyor belt and the full contact with the latex, adjust the DC voltage to 1.5V, introduce the film film condensed on the positive electrode into the spray cleaning device through the traction device for cleaning, the residual rubber in the clarified liquid is 0.3g, and pull it through the drying device. After drying at 60°C at low temperature to constant weight, 199.5 g of finished rubber was obtained by packaging. Take 100g of the above solid rubber, 5g of ZnO, 2g of stearic acid, 1g of anti-aging agent 1010NA, 30g of N330, 1.2g of accelerator CZ, 2g of sulfur, mix the rubber, measure t...

Embodiment 3

[0032] The positive electrode transmission device of the latex extraction device uses platinum as the plate material, and the conductive electrode plate is the negative electrode. Pass 3000g of latex latex with a dry glue mass content of 5% into the latex extraction device from the glue inlet, and adjust the angle of the negative plate by 10° , adjust the distance between the conveyor belt and the full contact with the latex, adjust the DC voltage 110V, introduce the film film condensed on the positive electrode into the spray cleaning device through the traction device for cleaning, the residual rubber in the clarified liquid is 0.4g, and pull it through the drying device. Dry at 60°C at low temperature until constant weight, and pack to obtain 149.6g of finished rubber. Take 100g of the above solid rubber, 5g of ZnO, 2g of stearic acid, 1g of anti-aging agent 1010NA, 30g of N330, 1.2g of accelerator CZ, 2g of sulfur, mix the rubber, measure the vulcanization curve and rubber ...

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Abstract

The invention discloses a method for rapidly extracting latex. A rapid latex extraction device is composed of a positive and negative plate, a cleaning device and a drying device. A positive electrodeis composed of a conveying device with a surface where a conducting material is attached, and a negative electrode is composed of a conductive electrode plate. The latex is led into the rapid latex extraction device from a latex inlet, the distance of the positive and negative plate is adjusted to make the positive electrode and the negative electrode contact with the latex, a direct current voltage is adjusted, a thin film rubber piece is gathered on the conveying device serving as the positive electrode and is conveyed through the conveying device to the cleaning device to be cleaned, and the thin film rubber piece is dried and packaged to obtain a finished rubber. The method is simple in process, the obtained rubber performance is excellent, rubber ingredients are reserved completely,no flocculation process occurs, and the method is green and environmentally friendly and reduces cost. Man-made influence factors of the process are fewer, continuous production can be achieved, the product quality is stable, and industrialized research is easy.

Description

technical field [0001] The invention relates to a method for extracting latex, which simultaneously solves the key problems of automatic production, acid flocculation, waste glue treatment and the like. The rubber obtained by the method is mainly used in the fields of car tread rubber, engineering tread rubber and the like. Background technique [0002] Traditionally, the production of solid rubber such as natural rubber is generally a positive flocculation process in which the flocculant is poured into the latex and the latex is coagulated. The positive flocculation equipment has a simple process, but due to its long-term coagulation process, the quality of the product is not easy to control , The product is unstable; the positive flocculation process has many shortcomings that limit its industrialization, the main shortcomings are poor continuous production capacity, strong smell of rubber products, and great corrosion to equipment. Pour the latex into the flocculant for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/04C08C1/14
CPCC08C1/04C08C1/14
Inventor 王益庆沈家锋孙思佳张立群
Owner BEIJING UNIV OF CHEM TECH
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