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Biodegradable polyurethane oil-absorbing material and preparation method thereof

An oil-absorbing material, biodegradable technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of oil-absorbing materials not being biodegradable, high cost, polluting the environment, etc., and achieve good biodegradability and environmental protection The effect of friendliness, high production efficiency and simple molding process

Inactive Publication Date: 2012-11-21
江苏瑞丰科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of existing oil-absorbing materials such as non-biodegradability, polluting the environment, and high cost, and to provide a biodegradable, non-toxic, non-polluting, low-cost, and on-site foamable oil-absorbing material. Biodegradable polyurethane oil-absorbing material

Method used

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  • Biodegradable polyurethane oil-absorbing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Composite liquefaction reagent is composed of polyethylene glycol 400, glycerin and concentrated sulfuric acid in a mass ratio of 100:20:5. Transfer the prepared liquefaction reagent and cornstarch to a three-necked bottle equipped with a stirrer and a condenser in a mass ratio of 4:1, and keep the temperature in an oil bath to 120°C in advance, and react for 2 hours under stirring and reflux conditions, Immediately after the reaction, transfer to cold water lower than 40° C., and cool to room temperature to obtain a biodegradable oligomeric polyol with a hydroxyl value of 280 mgKOH / g.

[0037]In a reactor equipped with a stirrer, a thermometer, and a reflux condenser, add 100 g of the above-mentioned biodegradable oligomeric polyol, the hydroxyl value is 100 mgKOH / g polyether polysiloxane diol 15 g, stannous octoate 0.2 g, triethylenediamine 0.5g, foam stabilizer polyether modified silicone surfactant 0.5g, deionized water 5g, stir well at room temperature, let stand f...

Embodiment 2

[0039] Composite liquefaction reagent is composed of polyethylene glycol 400, glycerin and concentrated sulfuric acid in a mass ratio of 100:10:5. Transfer the prepared liquefaction reagent and bagasse to a three-necked bottle equipped with a stirrer and a condenser in a mass ratio of 5:1, and keep the temperature in an oil bath to 130°C in advance, and react for 1.5 hours under the conditions of stirring and reflux , immediately transferred to cold water lower than 40°C after the reaction was completed, and cooled to room temperature to obtain a biodegradable oligomeric polyol with a hydroxyl value of 230 mgKOH / g.

[0040] In a reactor equipped with a stirrer, a thermometer, and a reflux condenser, add 100 g of the above-mentioned biodegradable oligomeric polyol with a hydroxyl value of 90 mgKOH / g polyether polysiloxane diol 18 g, dilauric acid di Butyl tin 0.3g, triethylenediamine 0.5g, foam stabilizer polyether modified silicone surfactant 1.3g, deionized water 6.5g, stir a...

Embodiment 3

[0042] Composite liquefaction reagent is composed of polyethylene glycol 400, glycerin and concentrated sulfuric acid in a mass ratio of 100:18:5. Transfer the prepared liquefaction reagent and bagasse to a three-necked bottle equipped with a stirrer and a condenser in a mass ratio of 5:1, and keep the temperature in an oil bath to 130°C in advance, and react for 1.5 hours under the conditions of stirring and reflux , immediately transferred to cold water lower than 40°C after the reaction was completed, and cooled to room temperature to obtain a biodegradable oligomeric polyol with a hydroxyl value of 310 mgKOH / g.

[0043] In a reactor equipped with a stirrer, a thermometer, and a reflux condenser, add 100 g of the above-mentioned biodegradable oligomeric polyol with a hydroxyl value of 150 mgKOH / g polyether polysiloxane diol 30 g, dilauric acid di Butyl tin 0.35g, triethylenediamine 0.5g, foam stabilizer polyether modified silicone surfactant 1.6g, deionized water 7.2g, stir...

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Abstract

The invention discloses a biodegradable polyurethane oil-absorbing material. The oil-absorbing material is prepared from raw materials comprising biodegradable oligomer polyol with hydroxyl value of 200-400 mgKOH / g, diisocyanate, polyether polysiloxane dihydric alcohol, a catalyst, a foam stabilizing agent and a foaming agent through a polymerization reaction. The oil-absorbing material has density of 30-100Kg / m<3> and diesel absorption ratio of 50-100 times. The biodegradable polyurethane oil-absorbing material has advantages of biodegradability, no toxicity, no pollution, low cost, and capability of on-site foam. As an ecological polyurethane oil-absorbing material, it can be used for adsorption of water surface spill oil, and is especially suitable for emergency treatment of surface oil spill for river and lake water.

Description

technical field [0001] The invention belongs to the field of oil-absorbing materials, and in particular relates to a biodegradable polyurethane oil-absorbing material and a preparation method of the material. Background technique [0002] With the continuous development of world industry, the discharge of oil pollution is increasing day by day, and there are more and more ways and opportunities for oil leakage, especially large-scale oil leakage accidents caused by maritime shipping. For example, on March 24, 1989, the US 214,000-ton giant oil tanker "Exxon Valdez" ran aground in Alaska, causing a crude oil spill of about 35,000 tons; 29,000 tons of crude oil was leaked due to a collision with another oil tanker in the northern waters of Sumatra Island; on December 12, 1999, the Maltese oil tanker "Erica" ​​sank in the Atlantic Ocean and leaked nearly 10,000 tons of heavy oil; in November 2002, the Liberian oil tanker "Prestige" "" disintegrated and sank in the waters of no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/64C08G18/61C08J9/08C08L75/04C09K3/32
Inventor 杜峰项尚林方显力
Owner 江苏瑞丰科技实业有限公司
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