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Method for detecting content of caprolactone in acrylic resin

A technology of acrylic resin and detection method, which is applied in the field of detection and analysis, can solve the problem that the detection of caprolactone content does not have any national standards and analysis methods, and affects the quality of acrylic resin products, so as to reduce costs, improve detection accuracy, and improve detection. efficiency effect

Pending Publication Date: 2022-04-01
山东惠分仪器有限公司
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Problems solved by technology

[0003] The hardness, flexibility and cohesiveness of acrylic resin can be changed by caprolactone, but when the content of caprolactone exceeds 2000ug / ml, will directly affect the product quality of acrylic resin, therefore, need the content of caprolactone in acrylic resin However, at present, there are no national standards and analytical methods for the detection of caprolactone content in acrylic resins

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  • Method for detecting content of caprolactone in acrylic resin
  • Method for detecting content of caprolactone in acrylic resin
  • Method for detecting content of caprolactone in acrylic resin

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Embodiment Construction

[0029] see Figure 1~3 , in the embodiment of the present invention, the detection method of caprolactone content in acrylic resin, comprises the following steps:

[0030] S1. Sample preparation: the solvent selected by the gas chromatograph is chromatographic grade pure ethyl acetate, and the column material of the gas chromatograph is a quartz capillary column;

[0031] S2. Setting of chromatographic conditions: the column temperature of the gas chromatograph is set to 90°C (5min), 10°C / min, 280°C (10min), the temperature of the injector is 280°C, the temperature of the detector is 280°C, and the carrier gas is nitrogen The flow rate is 30mL / min, the air flow rate is 300 mL / min, the hydrogen flow rate is 30mL / min, and the injection volume is 0.5mL;

[0032] S3, detection operation: start the gas chromatograph, then mix the acrylic resin liquid sample and ethyl acetate evenly, and perform data analysis and processing, and then calculate the content of caprolactone in the acr...

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Abstract

The invention relates to the technical field of detection and analysis, and discloses a method for detecting the content of caprolactone in acrylic resin, which comprises the following steps: S1, sample preparation; s2, setting chromatographic conditions; s3, detection operation: starting a gas chromatograph, then uniformly mixing the acrylic resin liquid sample with ethyl acetate, carrying out data analysis processing, and then calculating to obtain the content of caprolactone in the acrylic resin; s4, drawing a standard curve; s5, qualitative analysis of caprolactone; s6, quantitative result calculation of caprolactone: directly obtaining the concentration of caprolactone according to the caprolactone standard curve, and calculating the concentration of caprolactone in the acrylic resin; and S7, testing precision and accuracy. According to the present invention, the acrylic resin sample is dissolved by using the ethyl acetate, the gas chromatograph with the hydrogen flame ionization detector is adopted, the caprolactone content is calculated by using the external standard method after the peak area quantitative analysis, such that the detection efficiency and the detection precision can be improved, the cost can be reduced, the safety and the environmental protection are provided, and the harm to the human body is avoided.

Description

technical field [0001] The invention relates to the technical field of detection and analysis, in particular to a detection method for caprolactone content in acrylic resin. Background technique [0002] Acrylic resin is a commonly used paint component at present. It has many outstanding excellent properties, such as light color, excellent weather resistance, good decoration, comprehensive performance, outstanding three-proof performance, many varieties, wide range of uses, and easy to obtain raw materials. Reasonable price, etc., and widely used. [0003] The hardness, flexibility and cohesiveness of acrylic resin can be changed by caprolactone, but when the content of caprolactone exceeds 2000ug / ml, will directly affect the product quality of acrylic resin, therefore, need the content of caprolactone in acrylic resin Detect, yet, at present, the detection of caprolactone content in acrylic resin does not have any national standard and analytical method. Contents of the ...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/64
Inventor 杨文杨中元史德庆李峰耿文涛
Owner 山东惠分仪器有限公司
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