Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

In Situ Infrared Spectroscopy Cell

A technology of infrared spectroscopy and infrared light, which is applied in the field of in-situ infrared spectroscopy testing devices, can solve the problems of low heating efficiency and can not meet the requirements, and achieves the effects of high heating efficiency, wide application and improved experimental efficiency.

Active Publication Date: 2016-09-21
TSINGHUA UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the in-situ infrared spectroscopy cell in the prior art cannot meet the experimental conditions that require simultaneous heating and light irradiation or switching between the two reaction conditions in the process of material aging research.
Moreover, in the prior art, the sample is heated by heating the entire cell body of the in-situ infrared spectroscopy cell, resulting in low heating efficiency

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
  • In Situ Infrared Spectroscopy Cell
  • In Situ Infrared Spectroscopy Cell
  • In Situ Infrared Spectroscopy Cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] In this embodiment, the in-situ infrared spectroscopy cell 100 is used to detect volatilization of additives in nitrile rubber under heating conditions. First, put nitrile rubber in the sample boat, then set it in the in-situ infrared spectrum cell 100, heat the nitrile rubber to 150°C, during the heating process, collect the in-situ infrared spectrum cell at regular intervals Gas signal within 100. refer to Figure 5 and Figure 6 , the analysis of the gas signal collected in the in-situ infrared spectrum cell 100 shows that the peak area of ​​the additive increases with the test time, indicating that the additive is continuously volatilized during the heating process of the nitrile rubber.

Embodiment 2

[0065] In this embodiment, the in-situ infrared spectrometer cell 100 is used to detect the carbon dioxide produced by the polyethylene film under light conditions. First, put polyethylene film in the sample boat, then set it in the in-situ infrared spectroscopy cell 100, irradiate the polyethylene film with a 150W xenon lamp through the light port 8, and turn off the xenon lamp after irradiating for 180 minutes, during which time intervals Gas signals in the in-situ infrared spectroscopy cell 100 are collected. refer to Figure 7 and Figure 8 According to the analysis of the gas signal collected in the in-situ infrared spectroscopy cell 100, the polyethylene film produces carbon dioxide under the irradiation of the xenon lamp, and the carbon dioxide is continuously produced with the light, and the generation of the carbon dioxide stops once the light stops.

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

No PUM Login to View More

Abstract

The invention relates to an in-situ infrared spectrum cell which comprises a closed cell body, wherein an infrared injecting port and an infrared ejecting port are oppositely formed in the cell body and are used for enabling infrared light to be transmitted in and penetrate through the cell body; a lighting port and a sample setting port are oppositely formed in the cell body further; the lighting port is used for enabling the light to be transmitted into the cell body and irradiated to a sample to be detected; a packaging structural body which is used for sealing the sample setting port is further arranged at the sample setting port. The packaging structural body further comprises a heating element and a temperature measuring element, wherein the heating element is used for directly heating the sample to be detected, and the temperature measuring element is used for collecting the temperature of the sample to be detected.

Description

technical field [0001] The invention relates to an in-situ infrared spectrum testing device. Background technique [0002] Polymer materials often suffer from performance degradation (aging) due to the influence of light, heat, oxygen, humidity and other factors during use. The study of their aging behavior is very important for material application and life evaluation. Existing research on aging is carried out in a simulated experimental box, which often can only be carried out under a single or limited factor. The experiment period is long, and it is impossible to observe the changes of materials in situ in real time. Therefore, it is hoped that there will be a suitable experimental environment or equipment to Simulate or even accelerate the aging process as much as possible, and perform real-time and sensitive analysis of material changes. [0003] The in-situ infrared spectroscopy cell is a device that can use in-situ infrared spectroscopy to detect the infrared spectru...

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 Patents(China)
IPC IPC(8): G01N21/03G01N21/35G01N21/3504
Inventor 刘璇赵皎宏汪意杨睿
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com