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Method for synthesizing modified manganese dioxide nanometer material compound acrylic ester type oil-absorptive resin

A technology of manganese dioxide nanometers and acrylates, which is applied in the field of functional polymer materials, can solve the problem of low absorption rate, which can only reach dozens of times, and achieve the effect of improving thermal stability

Inactive Publication Date: 2012-12-05
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the oil-absorbing mechanism of super-absorbent resin is similar to that of super-absorbent resin in essence, super-absorbent resin absorbs water by utilizing the stronger hydrogen bond, while super-absorbent resin can only use weaker molecules between molecules. Van der Waals force, it is precisely because of this difference that super oil-absorbing resins cannot be saturated with oil absorption multiples (the ratio of the amount of oil absorbed to the original weight of the resin when the saturated oil absorption is reached) to hundreds or thousands of times like super water-absorbing resins, The absorption rate is much less, generally only a few dozen times

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Refining of benzoyl peroxide (BPO)

[0027] Take 10 g of benzoyl oxide and 40 mL of chloroform into a beaker, stir to dissolve; after filtering, add the resulting filtrate dropwise to 70 mL of absolute ethanol, and let stand. Until there is no more white needle-like crystal precipitation, the precipitate is filtered, washed, and then placed in a drying box for drying, and placed in a desiccator for storage.

[0028] 2. Analyze the modification of pure manganese dioxide

[0029] (1) Preparation of modifier

[0030] Take 0.22 mL of distilled water, 0.22 mL of absolute ethanol and 0.22 mL of vinyl triethoxy silane into a two-neck round bottom flask, 25 o C ultrasonic vibration for 15min.

[0031] (2) Modification of manganese dioxide

[0032] Take 2g of manganese dioxide and put it in a two-necked round-bottomed flask containing the above modifier, add 20 mL of isopropanol, and place the round-bottomed flask in a microwave synthesizer with a microwave synthesis power of 600w and ...

Embodiment 2

[0040] 1. Refining of benzoyl peroxide (BPO)

[0041] Take 20 g of benzoyl peroxide and 100 mL of chloroform into a beaker, stir to dissolve; after filtration, add the filtrate dropwise to 175 mL of absolute ethanol and let it stand. Until there is no more white needle-like crystal precipitation, the precipitate is filtered, washed, and then placed in a drying box for drying, and placed in a desiccator for storage.

[0042] 2. Preparation of hydrophobic manganese dioxide nanowires

[0043] Take 3.328g potassium sulfate, 10.33g potassium persulfate, 3.228g manganese sulfate, add 80 mL deionized water, then put this mixed liquid into a stainless steel reactor with polytetrafluoroethylene, and put the sealed reactor into In the oven, 150 o Place under C for 1 day. Then use 60 o Wash with distilled water around C for several times until the water-soluble impurities are removed. o Dry under C to obtain manganese dioxide nanowires.

[0044] Take 2.000 g of the above-mentioned manganese di...

Embodiment 3

[0052] 1. Refining of benzoyl peroxide (BPO)

[0053] Put 20g of benzoyl oxide and 90 mL of chloroform into a beaker, stir to dissolve; after filtering, add the filtrate dropwise to 157.5 mL of absolute ethanol and let stand until no white needle-like crystals are formed. The precipitate is filtered, washed, and then placed in a drying box for drying, and placed in a desiccator for storage.

[0054] 2. Analyze the modification of pure manganese dioxide

[0055] (1) Preparation of modifier

[0056] Take 0.22 mL of distilled water, 0.22 mL of absolute ethanol and 0.33 mL of vinyl triethoxy silane into a two-neck round bottom flask, 30 o C ultrasonic vibration for 20 min.

[0057] (2) Modification of manganese dioxide

[0058] Take 2g of manganese dioxide and put it in a two-necked round-bottomed flask containing the above modifier, add 24 mL of isopropanol, and place the round-bottomed flask in a microwave synthesizer with a microwave synthesis power of 500w and a temperature of 65 o C, t...

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Abstract

Disclosed is a method for synthesizing modified manganese dioxide nanometer material compound acrylic ester type oil-absorptive resin. The method includes modifying analytically pure manganese dioxide by vinyltriethoxysilane, modifying prepared manganese dioxde nanowires by cetyl trimethyl ammonium bromide so that manganese nanometer materials are of hydrophobicity; utilizing butyl methacrylate and butyl acrylate as oil-absorptive resin as main monomer, utilizing poval, N, N'-methylene bisacrylamide, benzoyl peroxide and ethyl acetate as dispersing agent, crosslinking agent, trigger and pore-forming agent of a polymerizing reaction system, and synthesizing modified manganese dioxide nanometer material compound acrylic ester type oil-absorptive resin by means of microwave radiation. The oil absorption ratio of the acrylic ester type oil-absorptive resin synthetized by the method to halohydrocarbon such as carbon tetrachloride is 20-40% higher than that of conventional acrylic ester type high-oil-absorption resin, and thermal stability is improved largely.

Description

Technical field [0001] The invention belongs to the field of functional polymer materials. Background technique [0002] With the rapid development of industrial production in my country, including the discharge of oily or other insoluble organic waste water, the leakage of oil tankers and tankers, the occurrence of accidents in the centralized storage of chemical raw materials such as large chemical plants, chemical raw material warehouses, etc., the soil, rivers, and oceans And the surrounding environment where the accident occurred caused serious pollution and became an increasingly serious problem. For a long time, people have been using traditional oil-absorbing materials such as kapok fiber and polypropylene non-woven fabrics, but traditional oil-absorbing materials have the disadvantages of poor heat and cold resistance, single oil absorption, slow oil absorption, and inconvenient recycling. Both performance and output cannot Meet the requirements of waste oil recycling an...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F2/46C08F2/44C08K9/06C08K3/22C08K9/04C08K7/00
Inventor 李秋荣张茜肖海燕辛珊珊王馨培丁艳巧
Owner YANSHAN UNIV
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