Unlock instant, AI-driven research and patent intelligence for your innovation.

Three glass-transition temperature testing methods realized by using nano mechanical tester

A glass transition and testing method technology, applied in the investigation stage/state change, material thermal expansion coefficient, etc., can solve problems such as different glass transition temperatures, and achieve the effect of facilitating communication and avoiding errors

Pending Publication Date: 2021-03-19
XI AN JIAOTONG UNIV
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the glass transition temperature obtained by different test methods is likely to be different, even if the same test method is measured under different test conditions or different definition methods. g will be very different

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three glass-transition temperature testing methods realized by using nano mechanical tester
  • Three glass-transition temperature testing methods realized by using nano mechanical tester
  • Three glass-transition temperature testing methods realized by using nano mechanical tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Glass transition temperature test of epoxy resin samples:

[0034] Specimen: Epofix cold-curing embedding resin produced by Struers, the specific preparation method is as follows: mix the resin and curing agent evenly at a weight ratio of 25:3 and put them in a vacuum tank for vacuuming to reduce the air bubbles in the epoxy resin. Cured for more than 12 hours. The epoxy resin is polished by mechanical means, and then the sample is heated to above 100°C and slowly cooled to reduce the influence of stress during the sample preparation process, and a more uniform and stable sample is obtained.

[0035] The test steps are as follows:

[0036] (1) Prepare the epoxy resin into a wedge-shaped sample, and fix it on the heating table of the nanomechanical tester for the measurement of the thermal expansion coefficient. For the implementation method, see the patent A method for testing the thermal expansion coefficient of a tiny sample with a nanomechanical tester, application ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses three glass-transition temperature testing methods realized by using a nano mechanical tester. Unification of test results is realized. According to the invention, the glass transition temperature of an amorphous polymer material is measured by utilizing the nano mechanical tester on the basis of a heating table and multiple methods, multiple test methods are integrated, and the results of each test method are compared, so that the more comprehensive, accurate and consistent glass transition temperature is given; the methods are expected to have a good application prospect in the fields of polymer material application, glass-transition temperature measurement and the like.

Description

technical field [0001] The invention relates to the technical field of glass transition temperature evaluation, in particular to three glass transition temperature test methods realized by using a nanomechanical tester. Background technique [0002] Glass transition is an inherent property of amorphous polymer materials, glass transition temperature (T g ) is one of the characteristic temperatures of polymer materials, which directly affects the use performance and process performance of materials, and determines the use temperature of materials, so it has been an important content of polymer physics research for a long time. When the glass transition occurs, many physical properties, especially the mechanical properties, will change drastically, and the polymer will change from a rigid glass state to a soft rubber state. In principle, all physical properties that change abruptly or discontinuously during the glass transition, such as modulus, specific heat, thermal expansi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/12G01N25/16
CPCG01N25/12G01N25/16
Inventor 秦元斌付琴琴解德刚张朋诚单智伟张鹏
Owner XI AN JIAOTONG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com