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Waste shoe sole rubber powder activation method and application thereof

An activation method and waste technology, applied in recycling technology, plastic recycling, etc., can solve the problems of difficult to cut sulfur, unfavorable environmental protection, increase waste water discharge, etc., to reduce production costs, ensure quality, and stabilize the temperature control system.

Inactive Publication Date: 2015-04-29
湖北华亿通橡胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there are many existing production methods for reclaimed rubber for shoe soles, because the rubber powder for shoe soles in waste rubber is relatively difficult to break vulcanizate, it is necessary to use softeners and other additives, and the dosage reaches 20-24%, which increases the discharge of waste water. Environmental protection is very bad

Method used

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  • Waste shoe sole rubber powder activation method and application thereof
  • Waste shoe sole rubber powder activation method and application thereof
  • Waste shoe sole rubber powder activation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]

[0029] Process: activation temperature is 250°C, host speed is 21Hz.

Embodiment 2

[0031]

[0032]

[0033] Process: Activation temperature is 260°C, host speed is 25Hz.

Embodiment 3

[0035]

[0036] Process: Activation temperature is 280°C, host speed is 22Hz.

[0037] After the obtained activated rubber powder was masticated on the open mill for 1 minute and 30 seconds, it was tested with the reclaimed rubber produced from the same raw material according to the requirements of the GB / T 13460-2008 standard. The comparative data obtained are shown in Table 1.

[0038] Table 1 The data comparison between activated rubber powder for soles of the present invention and reclaimed rubber for soles

[0039]

[0040] It can be seen from Table 1 that the acetone extractives of shoe sole activated rubber powder decreased significantly due to the decrease of softener dose, and other data basically remained unchanged.

[0041] Get the activated rubber powder that the present invention makes and carry out hazardous substance detection (SGS test report), the data of detection is shown in the following table:

[0042] project

[0043] Cadmium (Cd...

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Abstract

The invention discloses a waste shoe sole rubber powder activation method and application thereof. The method comprises the following steps: removing impurities, and classifying according to colors while ensuring no blending; pulverizing the waste shoe soles of each color to 30-60-mesh powder; adding 8-11 wt% of light-color softening oil (relative to the rubber powder), 2-4 wt% of first-grade rosin and 0.5-2 wt% of activator, and activating with a plasticizer at 250-280 DEG C under such proportion, wherein the rotation speed of the host machine is 20-25Hz; and cooling to obtain the activated rubber powder with different colors. The method reduces the use of the softening assistant, lowers the production cost and lowers the possibility of mold pollution and the possibility of overproof harmful substances in the product. The method is more environment-friendly; and the whole production process does not discharge waste gas or wastewater, and reduces the rubber mixing procedure. The method implements energy saving and high efficiency. The plasticizing machine is extrusion equipment, the heating system adopts electromagnetic heating, and the whole control temperature system is stable, thereby ensuring the quality of the activated rubber powder.

Description

technical field [0001] The invention relates to the technical field of production and recovery of waste rubber, in particular to a method for activating waste rubber powder for shoe soles and its application. Background technique [0002] With the development of science and technology and the accumulation of waste resources, more and more people have entered the recycling industry of waste resources, especially the rubber industry that is currently largely dependent on imports. In the case of waste shoe soles, more are used to produce rubber powder and reclaimed rubber, and the production of rubber powder is only the initial processing of waste shoe soles, the degree of utilization is not high, and the application methods and usage are also limited; for regeneration The production of glue improves the utilization value of waste shoe soles, but requires the use of a large amount of softening additives, which increases the cost and produces a large amount of waste gas to pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L93/04C08K5/01C08J11/10
CPCY02W30/62
Inventor 陈羽柯建华吴仕华
Owner 湖北华亿通橡胶有限公司
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