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Method for rapidly detecting gelling time of powder coating based on near infrared spectrum

A technology of near-infrared spectroscopy and gelation time, which is applied in the field of rapid detection of gelation time of powder coatings, can solve the problems of large errors and inability to feedback detection results in time, and achieve the effect of quick and easy operation

Pending Publication Date: 2022-03-29
ANHUI SHENJIAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for the test of the gel time of powder coatings with longer or shorter gel time, the error will be larger
For the detection of the gelation time of large batches of samples, the detection results cannot be fed back in time

Method used

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  • Method for rapidly detecting gelling time of powder coating based on near infrared spectrum
  • Method for rapidly detecting gelling time of powder coating based on near infrared spectrum
  • Method for rapidly detecting gelling time of powder coating based on near infrared spectrum

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Embodiment Construction

[0023] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0024] figure 1 The flow chart of the rapid detection method for the powder coating gel time based on near-infrared spectroscopy provided by the embodiment of the present invention, the method specifically includes the following steps:

[0025] S1. Collect different batches of powder coatings as powder coating standard samples, and the polyester resin models in different batches of powder coatings are the same;

[0026] Prepare the powder coating according to the following formula: polyester resin: 558g, TGIC (triglycidyl isocyanurate): 42g, barium sulfate: 250g, titanium dioxide: 150g, leveling agent (GLP588): 10g, benzoin: 3g, B...

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Abstract

The invention discloses a method for rapidly detecting gelling time of a powder coating based on a near infrared spectrum. The method comprises the following steps: S1, collecting a to-be-detected powder coating as a to-be-detected sample of the powder coating; s2, collecting a near infrared spectrum of a to-be-detected sample of the powder coating; and S3, inputting the collected near infrared spectrum into a correlation model of the near infrared spectrogram and the gelling time, and outputting the gelling time of the powder coating to be detected. Compared with a gelling time meter testing method, the near infrared spectroscopy provided by the invention is quicker, simpler and more convenient to operate, green and environment-friendly, the powder coating is not damaged in the gelling time testing process, and quick guidance is provided for product quality control in the production process of the film-forming substance polyester resin and the powder coating.

Description

technical field [0001] The invention belongs to the technical field of powder coating detection, and more specifically, the invention relates to a method for rapidly detecting the gelation time of powder coatings based on near-infrared spectroscopy. Background technique [0002] Powder coating is a solid powder synthetic resin coating composed of solid resin as film-forming substance, pigments, fillers and additives. During the baking process, the resin melts first, and then solidifies into a coating film after chemical crosslinking. The coating film has the functions of protecting the substrate and being beautiful. The use of powder coatings complies with the "Four E Principles" - Ecology, High Efficiency (Excellent of finish), Economy (Economy), and Energy (Energy). In the past half a century, with the rapid development of steel, petrochemical, non-ferrous metals, equipment manufacturing and electronic information industries, especially the rapid development of the three...

Claims

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Application Information

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IPC IPC(8): G01N21/359G01N21/01
CPCG01N21/359G01N21/01G01N2021/0112
Inventor 冯跃华翟春海焦金牛汪如琴吴德清
Owner ANHUI SHENJIAN NEW MATERIALS