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Reverse micellar nano-alumina catalyst system and method for synthesizing modified epoxy plasticizer

A technology of nano-alumina and epoxy plasticizers, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc. Due to limited application fields and complex processes, it achieves the effects of low freezing point, low migration and improved compatibility

Active Publication Date: 2016-01-20
浙江嘉澳环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when using the above compounding method to prepare plasticizers, on the one hand, the cost is high and the process is relatively complicated; on the other hand, due to the complexity of the raw materials, the performance of the prepared plasticizer is unstable, and the application field is severely limited.

Method used

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  • Reverse micellar nano-alumina catalyst system and method for synthesizing modified epoxy plasticizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Dissolve azobenzene in 100ml n-heptane / n-butanol mixed solvent, the volume ratio of the mixed solvent n-heptane / n-butanol is 10:1, and the concentration is 1×10 -6 mol / L solution, followed by ultrasonic oscillation for 30 min.

[0043] At room temperature, use a dropper to add the prepared sodium aluminate aqueous solution with a mass percentage concentration of 5% drop by drop until it is saturated and just not cloudy (about 9g). After the addition, continue ultrasonic oscillation for 30 minutes to accelerate The micelles are formed and the micellar structure is stabilized. Then, while carbon dioxide is passed into it, the ultrasonic reaction is continued for 1 hour at a reaction temperature of 50° C. to obtain the desired catalytic system—reverse micellar nano-alumina catalytic system.

[0044] Add concentrated sulfuric acid (the amount of concentrated sulfuric acid added is 16% of the weight of the soapstock) to the raw material oil soapstock, control the pH of the s...

Embodiment 2

[0053] Dissolve azobenzene in 100mL n-heptane / n-butanol mixed solvent, the molar ratio of mixed solvent n-heptane / n-butanol is 10:1, and the mass percentage concentration is 3×10 -5 mol / L solution, followed by ultrasonic oscillation for 30 min. At room temperature, use a dropper to add the prepared sodium aluminate aqueous solution with a concentration of 7% drop by drop until it is saturated and just not cloudy (about 6g). After the addition, continue ultrasonic oscillation for 45 minutes to accelerate the micelles. After forming and stabilizing the micelle structure, and then passing carbon dioxide into it, continue the ultrasonic reaction for 2 hours at a reaction temperature of 55°C to obtain the desired catalytic system—a reverse micelle nano-alumina catalytic system.

[0054] Add concentrated sulfuric acid (the amount of concentrated sulfuric acid added is 16% of the weight of the soapstock) to the raw material oil soapstock, control the pH of the solution within the ran...

Embodiment 3

[0063] Azobenzene is dissolved in 100ml n-heptane / n-butanol mixed solvent, the molar ratio of mixed solvent n-heptane / n-butanol is 10:1, and the mass percentage concentration is configured as 6×10 -3 mol / L solution, followed by ultrasonic oscillation for 30 min. At room temperature, use a dropper to add the prepared 10% sodium aluminate aqueous solution drop by drop until it is saturated and just not cloudy (about 6g). After the addition, continue ultrasonic oscillation for 60 minutes to accelerate the micelles. After forming and stabilizing the micelle structure, and then introducing carbon dioxide into it, the ultrasonic reaction was continued for 3 hours at a reaction temperature of 60°C to obtain the desired catalytic system—a reverse micelle nano-alumina catalytic system.

[0064] Add concentrated sulfuric acid (the amount of concentrated sulfuric acid added is 16% of the weight of the soapstock) to the raw material oil soapstock, control the pH of the solution within the...

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Abstract

The invention discloses a reversed micelle nanometer aluminum oxide catalytic system. The micelle nanometer aluminum oxide catalytic system is prepared by the method comprising the following steps: dissolving azobenzene into an organic solvent; adding sodium aluminate aqueous solution until reaching saturation; introducing carbon dioxide; then carrying out complete ultrasonic reaction under temperature of 50 to 60 DEG C to obtain the reversed micelle nanometer aluminum oxide catalytic system. The invention also discloses a method for synthesizing a modified epoxy plasticizer with the reversed micelle nanometer aluminum oxide catalytic system. Compared with the prior art, the novel plasticizer has the advantages of being high in epoxide number, and outstanding in compatibility with PVC (Polyvinyl Chloride) plastic; the flash point is high, thus the mobility is small, and overflowing is unlikely to occur; the color is relatively light, so that the novel plasticizer can be widely applied to the plastic industry; because of high electrical resistivity, the novel plasticizer is high in flame retardant performance and can be applied to the flame-retardant plastic industry to replace a chlorcosane plasticizer well; in addition, the performance is improved; the novel plasticizer is high in resistance to low temperature due to low solidifying point, and can also replace DOS (Di N Octyl Sebacate) and DOA (Di N Octyl Adipate) plasticizers well.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a reverse micellar nano-alumina catalyst system and a method for synthesizing a modified epoxy plasticizer. Background technique [0002] Plasticizer is a polymer material additive widely used in industry. Adding this substance in plastic processing can make it more flexible, easy to process, and widely used in industrial applications. Plasticizers are classified into aliphatic dibasic acid esters, phthalates (including phthalates and terephthalates), benzoate esters, benzoate esters, poly Alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, polyesters, etc. [0003] Chlorinated paraffin is the most commonly used flame retardant plasticizer, but it cannot be used in many fields due to its bad color and taste. Dioctyl adipate is widely recognized by the public due to its good cold resistance, but due to its poor compatibility and long-term storage, it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/26C07D303/16C07D301/16C08K5/1515
Inventor 沈健崔哲
Owner 浙江嘉澳环保科技股份有限公司
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