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An accelerated storage aging test device for multi-channel material chemical structure monitoring

A chemical structure, accelerated storage technology, applied in measurement devices, analytical materials, scientific instruments, etc., can solve the problem that the aging effect is not obvious, it is not conducive to the evaluation of material life and the research of aging mechanism, and it is impossible to obtain the aging law of chemical structure of materials, etc. problems, to achieve the effect of improving sensitivity and result accuracy, and reducing test errors

Active Publication Date: 2021-06-22
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the widespread use of organic materials, a group of organic materials with very good aging resistance have gradually emerged, such as polymer materials such as polyurethane and silicone rubber. The aging effect of these materials is often not obvious, and the use of conventional infrared spectroscopy During the test, due to the off-line test method, the structural differences between different samples and the errors in the instrument measurement process cannot be significantly lower than the chemical structure changes caused by aging
As a result, the aging law of the effective material chemical structure cannot be obtained, which is not conducive to the study of material life evaluation and aging mechanism

Method used

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  • An accelerated storage aging test device for multi-channel material chemical structure monitoring
  • An accelerated storage aging test device for multi-channel material chemical structure monitoring
  • An accelerated storage aging test device for multi-channel material chemical structure monitoring

Examples

Experimental program
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Effect test

Embodiment 1

[0020] An accelerated storage aging test device for monitoring the chemical structure of multi-channel materials, including a sample constant temperature device 1, a wire gathering device 2, a rotating disk gear 3, a rotating disk 8, a rotating disk bracket 9, a driving motor 10 and a driving gear 6, and a sample constant temperature The device 1 is arranged on the rotating disk 8, and the rotating disk 8 is connected with the rotating disk gear 3, and the rotating disk gear 3 drives the rotating disk 8 to rotate, and the wire collection device 2 is installed on the rotating disk bracket 9 and connected with the sample constant temperature device 1, and drives The motor 10 is arranged on the bottom of the rotating disk support 9, and the driving gear 6 is connected to the coupling of the driving motor 10, and the power is transmitted to the rotating disk 8 through a chain. Wheel 4 is used to adjust the tightness of the chain to ensure accurate positioning of the sample thermost...

Embodiment 2

[0022] The long-term storage and aging research of polyurethane polymer materials, the specific operation method includes the following steps:

[0023] (1) Grinding 3-5g spectroscopically pure potassium bromide powder, utilizing a tablet press to compress 6 groups of potassium bromide tablets with a thickness of about 0.5mm and a total of 12 pieces;

[0024] (2) cut 5 polyurethane films of 20-30 micron thickness;

[0025] (3) 1 piece of polyurethane film and 2 pieces of potassium bromide to form a sandwich structure, the polyurethane film is placed in the middle of the 2 pieces of potassium bromide, fixed on the sample constant temperature device at the same time, put it into the heating mantle, and lock the sample Location;

[0026] (4) Control the temperature of 45°C, 65°C, 85°C, 105°C, and 125°C for 5 groups of samples respectively, and one of the channels does not place a sample, which is used to subtract the background;

[0027] (5) Rotate the multi-channel in-situ reac...

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Abstract

The invention discloses an accelerated storage aging test device for multi-channel material chemical structure monitoring, which comprises a sample constant temperature device, a wire gathering device, a rotating disk gear, a rotating disk, a rotating disk bracket, a driving motor and a driving gear, and the sample constant temperature device is evenly distributed On the rotating disk, the rotating disk is connected with the rotating disk gear, and the rotating disk gear drives the rotating disk to rotate. The wire collection device is installed on the rotating disk bracket and connected to the sample constant temperature device. On the shaft coupling of the driving motor and on the sample constant temperature device, an integrated hub interface is also installed, and a light-transmitting hole is arranged in the middle of the rotating disk support. The device can be fixed on an infrared spectrometer for long-term in-situ on-line monitoring of chemical structures, which can overcome the difficulty of detecting micro-trace chemical changes during the aging process of aging-resistant organic materials, reduce test errors, and improve detection sensitivity and result accuracy.

Description

technical field [0001] The invention relates to the field of material storage aging health diagnosis, in particular to an accelerated storage aging test device for multi-channel material chemical structure monitoring. Background technique [0002] During the processing, storage and use of organic materials, they are affected by temperature, oxygen, chemical media, etc., which will cause changes in the physical and chemical properties of materials. This change is called the aging of organic materials. When the aging effect reaches a certain level, it will fail and lose its use value, which will affect the normal use of polymer materials. This is an irreversible physical and chemical change. Failure is common. For organic polymer materials words are more obvious. [0003] Infrared spectroscopy is a very effective method to study the chemical changes of organic materials and the mechanism of material aging, and it is usually used in the research of material aging at home and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 郝晓飞睢贺良李超峰陈捷于谦银颖陈建波杨秀兰孙杰
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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