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Oven and system and method for automatically measuring thermo-oxidative aging life of polymer material

A polymer material, thermo-oxidative aging technology, applied in the thermal development of materials, analytical materials, measuring devices, etc., can solve the problems of inability to guarantee the accuracy of thermo-oxidative aging life, unrealistic manual processing methods, and complicated testing processes. Achieve the effect of improving test stability, avoiding frequent out-of-box sampling, and simplifying the test process

Pending Publication Date: 2022-02-18
NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the increase of testing workload, it is usually necessary to identify and classify hundreds of pictures, and the manual processing method becomes too impractical and labor-intensive, and the accuracy of subsequent thermo-oxidative aging life measurement of polymer materials cannot be guaranteed
Chinese patent CN111562241A discloses a detection and process analysis method for the aging of polymer materials. Aiming at the specific functional groups generated during the aging process of polymers, specific fluorescent probe molecules are selected to perform targeted post-dyeing treatment on the functional groups. The aging point of the polymer material is fluorescently labeled to show the change of the fluorescent signal due to the change of the functional group. Through the collection of the fluorescent signal, the multi-dimensional visual monitoring of the aging site can be realized, and the aging reaction rate constant in different dimensions can be obtained. However, the In the scheme, when testing polymer materials, post-dyeing treatment is required for each test, and multi-dimensional monitoring of aging sites is carried out. The testing process is complicated and the work efficiency is low.

Method used

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  • Oven and system and method for automatically measuring thermo-oxidative aging life of polymer material
  • Oven and system and method for automatically measuring thermo-oxidative aging life of polymer material
  • Oven and system and method for automatically measuring thermo-oxidative aging life of polymer material

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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, a kind of oven comprises box body 1, box door 2 hinged with box body 1, and box body 1 is provided with the sample rack 5 that is used to place sample, and box body 1 is provided with heating device; Box door 2 is installed There are 22 cameras.

[0050] The above-mentioned oven is provided with a heating device inside the box body 1. The heating device can heat and age the sample placed on the sample rack 5. The camera 22 can be used to take pictures of the sample, and judge whether the sample is aging and invalid according to the sample picture taken. Avoiding the problem of temperature deviation inside the oven caused by frequent opening of the oven is conducive to improving test stability and work efficiency. When the present invention is used for thermo-oxidative aging of polymer materials, the heating device performs thermo-oxidative aging of the polymer materials, the camera 22 can directly take pictures of the polymer materials, and t...

Embodiment 2

[0058] A polymer material thermo-oxidative aging life automatic measurement system, comprising the above-mentioned oven and cabinet 4, such as image 3 As shown, the chassis 4 includes a control module 42, a calculation module 47, a display screen 41, an acquisition module 43 for obtaining a gallery and a training sample set, an identification module 44 for identifying whether the image to be processed is an invalid image, The storage module 45 of storage failure picture and the reminding module 46 for warning, described camera 22, heating device are connected with described control module 42 respectively, and described acquisition module 43 is connected with camera 22, and described acquisition module 43, storage module 45 and the reminder module 46 are respectively connected to the identification module 44, the calculation module 47 is connected to the storage module 45, the display screen 41 is connected to the calculation module 47, and the heating device is used to heat an...

Embodiment 3

[0063] An automatic measurement method for thermal oxygen aging life of polymer materials, applied to the above-mentioned automatic measurement system for thermal oxygen aging life of polymer materials, such as Figure 4 shown, including the following steps:

[0064] S1: Put the sample into the sample rack 5, close the box door 2, preset the internal temperature of the box 1, set the shooting cycle of the camera 22, start the heating device, age the sample, and record the initial time t0 ;

[0065] S2: Use the camera 22 to photograph the sample according to the photographing cycle, obtain a gallery, and record the photographing time t′ of each photographing 0 ;

[0066] S3: Use the acquisition module 43 to acquire a gallery from the camera 22, the gallery includes at least one image to be processed;

[0067] S4: Input the pictures to be processed into the identification module 44 respectively, and use the identification module 44 to identify the pictures to be processed;

...

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Abstract

The invention relates to the technical field of polymer material aging life testing, in particular to an oven and a system and method for automatically measuring the thermo-oxidative aging life of a polymer material. An oven body is internally provided with a heating device, the heating device can heat and age a sample placed on a sample frame, and a camera is used for shooting the sample; an identification model is utilized to judge whether the sample is aged and invalid according to the shot sample picture, frequent box opening sampling is avoided, the working efficiency is improved, temperature fluctuation in the oven caused by frequent box opening is avoided, the test stability is improved, and the reliability of automatic measurement of the thermo-oxidative aging life of the polymer material is improved.

Description

technical field [0001] The invention relates to the technical field of aging life testing of polymer materials, and more particularly relates to an oven, an automatic measuring system and method for thermo-oxidative aging life of polymer materials. Background technique [0002] Polymer materials will appear pulverization characteristics after long-term high-temperature aging, and the aging degree of the material can be directly judged by the apparent pulverization degree of the material. In the actual thermo-oxidative aging process of polymer materials, the existing oven device cannot directly observe the pulverization of the surface of the material in the high temperature state of the oven. Frequent sampling will lead to fluctuations in the oven temperature, which will deviate from the actual oven temperature. At the same time, the working efficiency and lower performance. Chinese patent CN213275298U discloses a multi-layer film oven, comprising: a box body, a plurality of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01N21/84G01N25/20G06F30/27G06K9/62G06V10/774G06V10/764G06F119/04
CPCG01N17/00G01N25/20G01N21/84G06F30/27G06F2119/04G06F18/24G06F18/214
Inventor 刘洁庞承焕吴博李卫领宁红涛刘波刘奇祥
Owner NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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