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Method for measuring material glass transition based on optical change

A glass transition and optical technology, applied in chemical instruments and methods, polycrystalline material growth, color/spectral characteristic measurement, etc., can solve the problems of unintuitive phenomena, complicated operation, and low accuracy of measurement results, and achieve intuitive phenomena , simple operation, high accuracy effect

Inactive Publication Date: 2010-10-06
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 material glass transition based on optical change
  • Method for measuring material glass transition based on optical change
  • Method for measuring material glass transition based on optical change

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Embodiment Construction

[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 material glass transition based on optical change, relating to a method for measuring material glass transition and solving the problems that the traditional method for measuring material glass transition has complex operation, unintuitive phenomenon and low degree of accuracy of measurement results. The method comprising the following steps of: firstly, assembling sub-micrometer microspheres on a glass substrate to obtain a template; secondly, filling material to be measured in gaps among the sub-micrometer microspheres on the template in a solution or fusant to obtain a composite membrane; thirdly, drying or cooling the composite membrane obtained in the second step, and then removing the template to obtain a porous membrane; fourthly, trimming the porous membrane obtained in the third step to obtain a sample to be measured; and fifthly, placing the sample to be measured in a program control heating device and measuring the glass transition result of the material to be measured by adopting a Macroscopic observation method, a micro melting point apparatus observation method or fiber spectrometer measurement method. The invention is suitable for measuring material glass transition.

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 transition 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 ...

Claims

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Application Information

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IPC IPC(8): G01N21/25G01N21/29C30B29/58C30B5/00
Inventor 孙立国赵冬梅汪成滕婧刘玉辉
Owner HEILONGJIANG UNIV
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