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Preparation method of urushiol boron resin

A technology of urushiol boron and resin, which is applied in the field of resin preparation, can solve problems such as flexibility and other basic performance defects, and achieve the effects of improving product quality and comprehensive performance, simple process and simple operation

Inactive Publication Date: 2018-03-16
SHAANXI QIYUAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Urushiol has many excellent properties, but its basic properties such as flexibility have certain defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The preparation method of urushiol boron resin of the present invention comprises the following steps:

[0014] The first step, the extraction of urushiol: add xylene of equal mass to the raw lacquer, stir at room temperature, let it stand for stratification, vacuum filter the upper brown solution to obtain urushiol xylene solution, measure its solid content, and use the refraction method Determination of the mass fraction of urushiol, standby;

[0015] The second step is the preparation of urushiol formal. In a 1000mL three-necked flask, add formaldehyde, urushiol xylene solution and ammonia water, slowly raise the temperature to about 90°C, keep the temperature for 80min, then raise the temperature to reflux, and use an oil-water separator Carry out oil-water separation, stop the reaction after the water is completely removed, cool to room temperature, and set aside;

[0016] The third step is the synthesis of urushiol boron resin: in a 1000mL three-necked flask, add...

Embodiment 2

[0019] The preparation method of urushiol boron resin of the present invention comprises the following steps:

[0020] The first step, the extraction of urushiol: add xylene of equal mass to the raw lacquer, stir at room temperature, let it stand for stratification, vacuum filter the upper brown solution to obtain urushiol xylene solution, measure its solid content, and use the refraction method Determination of the mass fraction of urushiol, standby;

[0021] The second step is the preparation of urushiol formal. In a 1000mL three-necked flask, add formaldehyde, urushiol xylene solution and ammonia water, slowly raise the temperature to about 90°C, keep the temperature for 80min, then raise the temperature to reflux, and use an oil-water separator Carry out oil-water separation, stop the reaction after the water is completely removed, cool to room temperature, and set aside;

[0022] The third step is the synthesis of urushiol boron resin: in a 1000mL three-necked flask, add...

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Abstract

The invention relates to the field of resin preparation, in particular to a preparation method of urushiol boron resin. The preparation method includes: extracting urushiol, to be more specific, adding equal-mass xylene into raw lacquer, stirring at normal temperature, standing for layering, performing vacuum filtration on the upper-layer brown solution to obtain a urushiol xylene solution, measuring the solid content of the urushiol xylene solution, and using refractometry to measure the mass fraction of urushiol for standby; preparing urushiol formaldehyde polymer, to be more specific, adding formaldehyde, the urushiol xylene solution and ammonia water into a 1000mL three-opening flask, slowing heating to about 90 DEG C, performing heat-preservation reaction for 80 minutes, heating untilreflux occurs, using an oil-water separator to perform oil-water separation, stopping the reaction after all water is removed, and cooling to room temperature for standby. The preparation method is simple in process, simple to operate and capable of increasing product quality and comprehensive performance.

Description

technical field [0001] The invention relates to the field of resin preparation, in particular to a preparation method of urushiol boron resin. Background technique [0002] Raw lacquer, also known as natural lacquer, earth lacquer, national lacquer, and lacquer, is a natural latex paint secreted from the bast layer of lacquer trees after being cut by hand. It is the oldest natural high-quality paint that can be cured at room temperature to form a natural film Polymer ecological resin. With the development of synthetic resins, in order to improve the physical properties of lacquer and reduce its consumption, the copolymerization of lacquer (mainly urushiol) with a series of resins has become a research hotspot. Using the special structure of urushiol, Chinese scientific researchers have synthesized a series of urushiol metal complexes or complex polymers. While maintaining the original properties of lacquer, it has improved its comprehensive performance and opened up a new w...

Claims

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Application Information

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IPC IPC(8): C08G8/28C08G8/20C09D161/14
CPCC08G8/20C08G8/28C09D161/14
Inventor 张淑芬
Owner SHAANXI QIYUAN TECH DEV
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