Method for selecting optimal microwave radiation power of environmental-friendly high-tenacity regenerated rubber

A high-strength reclaimed rubber and microwave radiation technology, applied in the field of waste rubber regeneration, can solve problems such as waste of energy, excessive breakage of the main chain of rubber molecules, and reduced mechanical strength of reclaimed rubber, so as to improve production efficiency and highlight economic and social benefits. , the effect of saving energy

Inactive Publication Date: 2012-08-15
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive power of microwave radiation may not only lead to the breakage of cross-linking bonds, but also lead to excessive breakage of the main chain of rubber molecules, which will eventually lead to a decrease in the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The formula of microwave reclaimed rubber is as follows:

[0014] Raw material name Dosage (mass parts)

[0015] 9.00-20 20-mesh rubber powder for heavy duty tire casing preparation 100.00

[0016] Softener Rosin 12.00

[0017] Regenerant dipentene 0.40

[0018] Method: Spread the dry and weighed coarse rubber powder, softener rosin and regenerant dipentene in a microwave irradiation device with a thickness of 2 cm. Then carry out microwave regeneration treatment. When the microwave radiation frequency is 2450Hz, the power is 320W, 400W, 480W, 560W, 640W, 720W, and 800W, respectively, and the rubber powder is microwaved for the same time. 60s, 70s, 80s, 90s, 100s, 110s, 120s, that is, take a time node every 10s, and then use power and time as variables to conduct experiments, a total of 49 experiments are carried out. The regenerated rubber powder is immediately stirred and fully cooled, and the cooled microwave-treated regenerated rubber is put into an open m...

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Abstract

The invention discloses a method for selecting the optimal microwave radiation power of environmental-friendly high-tenacity regenerated rubber, belonging to the field of waste rubber regeneration. The method comprises the following steps of: flatly laying rubber to be processed 2 cm in thickness; then, carrying out microwave regeneration processing on the rubber; under the condition that the microwave radiation frequency is 2450 Hz, respectively setting the power into seven power points: 320 W, 400 W, 480 W, 560 W, 640 W, 720 W and 800 W power points, respectively setting the radiation time into seven time points: 60 s, 70 s, 80 s, 90 s, 100 s, 110 s, 120 s time points, and carrying out microwave radiation processing on the rubber for seven times under each power point; and respectively carrying out low-temperature regeneration on 49 rubbers subjected to microwave radiation for 20 min on a low-temperature roll mill under each power point and each time point. Through carrying out testing on the physical mechanical properties and manufacturing process properties of the rubber prepared according to a national standard formula, the radiation power corresponding to the rubber with the optimal comprehensive property is determined as the optimal microwave radiation power. The method has the beneficial effects of saving the radiation energy and improving the properties of the regenerated rubber.

Description

technical field [0001] The invention relates to the field of waste rubber regeneration, in particular to a method for selecting the optimum microwave radiation power for environmentally friendly high-strength reclaimed rubber. Background technique [0002] The number of waste rubber materials is second only to waste plastics in waste polymer materials. Among them, the annual scrap of automobile tires is more than 1 billion in the world, and 50 to 60 million in my country. The recycling and utilization of waste rubber is mainly waste tires, and others include waste rubber shoes and inner tubes. [0003] Conventional reclaimed rubber currently needs to be carried out in a regeneration tank during the regeneration process, requiring heating and stirring, cleaning, dehydration, refining and other processes. The equipment and processes are complex and the investment is large. In the regeneration process, a large amount of softener coal tar, pine tar, petroleum extract, etc. are ...

Claims

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Application Information

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IPC IPC(8): C08J11/10C08L17/00C08L7/00C08L23/22C08L93/04
CPCY02W30/62
Inventor 王艳秋张恒中周立雪寇景刘太闯姚亮
Owner XUZHOU COLLEGE OF INDAL TECH
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