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High oil absorption resin and its preparation method

A technology of super oil-absorbing resin and rubber, applied in the field of super oil-absorbing resin and its preparation, can solve the problem that there is no waste tire rubber powder and the like, and achieve the effects of high mechanical strength, solving environmental problems and simple methods

Inactive Publication Date: 2007-04-18
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there is no technology to use waste tire rubber powder for the preparation of oil absorbents.

Method used

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  • High oil absorption resin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Before the reaction, 100 parts of waste tire rubber powder was dissolved in 50 parts of liquid paraffin. In a four-neck round bottom flask equipped with a stirrer, a condenser, a thermometer, and an inert gas inlet tube, add 250 parts of deionized water, 0.1 part of gelatin, 0.05 part of tricalcium phosphate and 0.025 part of sodium lauryl sulfate. Under the protection of gas such as nitrogen, raise the temperature to 30°C in an oil bath, and after constant temperature for 15 minutes, add 100 parts of the dissolved waste tire rubber powder and 1 part of benzoyl peroxide into the four-necked bottle, and quickly Stir, first raise the temperature to 60°C for 2 hours, then slow down the stirring speed, maintain at 350rpm, raise the temperature to 70°C and keep the temperature constant for 4 hours, after the reaction is complete, raise the temperature to 80°C for 1 hour to finish the reaction. After filtration, the product is washed three times with dilute hydrochloric acid ...

Embodiment 2

[0031] Before the reaction, 100 parts of waste tire rubber powder was dissolved in 75 parts of liquid paraffin. In a four-necked round-bottom flask equipped with a stirrer, a condenser, a thermometer, and an inert gas inlet tube, add 325 parts of deionized water, 0.1 part of gelatin, 0.05 part of phosphoric acid tris and 0.025 part of sodium lauryl sulfate. For example, under the protection of nitrogen, raise the temperature in an oil bath to 35°C, keep the temperature for 20 minutes, add 100 parts of the dissolved waste tire rubber powder, 3 parts of divinylbenzene, and 1 part of azobisisobutyronitrile into the four-necked bottle, Stir rapidly under the protection of nitrogen, first raise the temperature to 60°C for 2 hours, then slow down the stirring speed, maintain at 400rpm, raise the temperature to 70°C and keep the temperature for 6 hours, wait until the reaction is complete, then raise the temperature to 80°C for 1 hour of aging, and end the reaction. After filtration,...

Embodiment 3

[0038] Before the reaction, 85 parts of waste tire rubber powder and 15 parts of EPDM were dissolved in 100 parts of liquid paraffin. In a four-neck round bottom flask equipped with a stirrer, a condenser, a thermometer, and an inert gas inlet tube, add 500 parts of deionized water, 0.1 part of gelatin, 0.05 part of tricalcium phosphate and 0.025 part of sodium lauryl sulfate. Under the protection of gas such as nitrogen, raise the temperature to 40°C in an oil bath, and keep the temperature for 20 minutes, then mix 85 parts of the dissolved waste tire rubber powder, 15 parts of EPDM, 3 parts of ethylene glycol diacrylate, and 1 part of benzoyl peroxide. Put it into a four-neck bottle, stir rapidly under the protection of nitrogen, reduce the stirring speed after 2 hours of reaction, maintain at 400rpm, raise the temperature to 70°C and keep the temperature for 7 hours, after the reaction is complete, raise the temperature to 80°C and mature for 1 hour to end the reaction . A...

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Abstract

This invention discloses a high oil-absorbing resin and its preparation. This high oil-absorbing resin is made by using scrap tire as raw material, combining cross linking agent, dispersant agent, assistant dispersant agent, free radical polymerization initiator, solvent and water. This invention not only utilizes the waste sources effectively, but also solves the environment problem caused by scrap tire.The method is simple and cost is low.

Description

technical field [0001] The invention relates to a high oil-absorbing resin and a preparation method thereof, in particular to a high oil-absorbing resin made from waste tire rubber powder and a preparation method thereof. Background of the invention [0002] Traditional inorganic oil-absorbing materials (such as perlite, vermiculite, clay or diatomaceous earth) have basically been rarely used due to their low oil-absorbing efficiency. At present, organic oil-absorbing materials (such as polypropylene and polyurethane foam) are widely used in industry, but the production cost of these organic synthetic polymer oil-absorbing materials is high. The annual output of tires in the world is as high as 3 billion, and it is increasing at an astonishing rate of about 1 billion per year, with a scrap rate of 55.4%. In 1994, my country produced 50 million tires, 12.5 million were discarded, and the scrap rate was 25%. In 2001, my country's tire output reached 133.56 million pieces, ra...

Claims

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Application Information

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IPC IPC(8): C08F291/02C08F4/32
Inventor 吴波周美华刘艳萍
Owner DONGHUA UNIV
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