Method for measuring glass transition of material on basis of optical change

A glass transition and optical technology, applied in the preparation of test samples, color/spectral property measurement, etc., can solve the problems of unintuitive phenomena, low accuracy of measurement results, and complicated operations, and achieve intuitive phenomena and high accuracy. , the effect of simple operation

Inactive Publication Date: 2012-01-18
HEILONGJIANG UNIV
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Problems solved by technology

[0003] The present invention aims to solve the problems of complicated operation, unintuitive phenomena and low accuracy of measurement results in the existing method for measuring glass transition of materials, thereby proposing a method for measuring glass transition of materials based on optical changes

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  • Method for measuring glass transition of material on basis of optical change
  • Method for measuring glass transition of material on basis of optical change
  • Method for measuring glass transition of material on basis of optical change

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specific Embodiment approach 1

[0021] Specific implementation mode 1. Combination figure 1 Illustrate this specific embodiment, the method for measuring material glass transition based on optical change, it is realized by the following steps:

[0022] Step 1, assembling submicron microspheres on a glass substrate to obtain a template;

[0023] Step 2, filling the material to be tested into the gap between the submicron microspheres on the template in the form of solution or melt to obtain a composite film;

[0024] Step 3, drying or cooling the composite membrane obtained in step 2, and then removing the template to obtain a porous membrane;

[0025] Step 4, trimming the porous membrane obtained in step 3 to obtain the sample to be tested;

[0026] Step 5. Place the sample to be tested obtained in Step 4 in a program-controlled heating device, and measure the glass transition result of the material to be tested by visual observation, micro melting point instrument observation or optical fiber spectrometer...

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Abstract

The invention discloses a method for measuring the glass transition of a material on the basis of the optical change, relates to a method for measuring the glass transition of the material, and solves the problems of complex operation, non-visual phenomenon and low accuracy degree of a measurement result of the existing method for measuring the glass transition of the material. The method comprises the following steps of: 1, assembling submicron microspheres on a glass substrate to obtain a template; 2, filling the material to be measured into gaps between the submicron microspheres on the template in a solution or fondant mode to obtain a composite film; 3, drying or cooling the composite film obtained in the step 2 and then removing the template to obtain a porous film; 4, trimming the porous film obtained in the step 3 to obtain a test sample to be measured; and 5, placing the test sample to be measured into a program controlled temperature rising device and measuring a glass transition result of the glass material to be measured by a macroscopic observation method, a micro melting point apparatus observation method or an optical fiber spectrometer measurement method. The method is suitable for measuring the glass transition of the material.

Description

technical field [0001] The invention relates to a method for measuring the glass transition of a material. Background technique [0002] Since Yablonovitch proposed the concept of photonic crystals in 1987, photonic crystals have attracted more and more attention due to their unique optical properties and potential applications in the field of optical devices. Until now, the preparation and application of photonic crystals have always been a hot spot in scientific research and application. However, it has not been applied to test the physical properties of materials, especially in the field of glass transition temperature. The traditional differential temperature scanning (DSC) test method for testing the glass transition temperature is complicated to operate, the phenomenon is not intuitive, and the accuracy of the measurement results is low. Contents of the invention [0003] The present invention aims to solve the problems of complex operation, unintuitive phenomena a...

Claims

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Application Information

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IPC IPC(8): G01N21/25G01N1/28
Inventor 孙立国赵冬梅汪成滕婧刘玉辉
Owner HEILONGJIANG UNIV
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