Method for predicting service life of polystyrene material by using sun tracking condensation accelerated aging test

A technology of accelerated aging and sun tracking, which is applied in the fields of analyzing materials, measuring devices, design optimization/simulation, etc. It can solve problems such as low correlation of natural aging tests and spectral differences of artificial light sources, so as to reduce test workload and save test time , the effect of improving the accuracy

Active Publication Date: 2020-03-27
CHINA NAT ELECTRIC APP RES INST
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the artificial accelerated aging test has a short cycle and fast aging time, there is a big difference between the artificial light source and the natural light spectrum, and it also ignores the influence of factors such as the temperature difference between day and night, seasonal changes, and air active components, and cannot fully and truly reflect the natural environment. All factors, sometimes the correlation between accelerated aging test and natural aging test is lower

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
  • Method for predicting service life of polystyrene material by using sun tracking condensation accelerated aging test
  • Method for predicting service life of polystyrene material by using sun tracking condensation accelerated aging test
  • Method for predicting service life of polystyrene material by using sun tracking condensation accelerated aging test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] Applying the method of the present invention to predict the service life of PS materials in Phoenix, U.S.A. and Turpan, Xinjiang, the specific steps are as follows:

[0045] (1) To prepare PS samples, the PS samples are prepared by injection molding method with a size of 60mm×80mm×3mm; the gloss retention rate of the samples is tested before the test is carried out, and the results are tested for 3 samples, and the arithmetic mean of multiple tests is taken as the result value, recorded as the initial performance value of the sample;

[0046] (2) Carry out the sun-tracking concentrated light acceleration test in Phoenix, U.S. (as the selected area), record in the time of the whole year of 2018, the total solar ultraviolet radiation (Ir1 ), annual average temperature (T 1 ), annual mean relative humidity (RH 1 ), and get the following result:

[0047] I r1 =1271.03(MJ / m 2 )

[0048] T 1 =28.0(℃)

[0049] RH 1 =31.7(%)

[0050] (3) Statistically analyze the clima...

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 discloses a method for predicting the service life of a polystyrene material by using a solar tracking condensation accelerated aging test. The method comprises the following steps: carrying out a sun tracking condensation accelerated aging test on a polystyrene material in any selected region; and establishing an environment severity model, and calculating the acceleration multiplying power of the sun tracking condensation accelerated aging test relative to the natural aging of the PS in the actual use area based on the environment severity model so as to predict the service life of the PS material in the natural environment of the actual use area. According to the method, an environment severity model is adopted; the accelerated multiplying power of the accelerated aging test relative to any region can be calculated, the service life of the PS material in any region can be predicted through one-time sun tracking condensation accelerated aging test of the PS material inany selected region, the test workload can be effectively reduced, and the accuracy of service life prediction can be improved.

Description

technical field [0001] The invention relates to a test method for predicting the service life of polystyrene materials, in particular to a method for predicting the service life of polystyrene materials by using the sun tracking concentrated light accelerated aging test. Background technique [0002] As one of the five general-purpose plastics, polystyrene (PS) has the advantages of high rigidity, light weight, good fluidity, easy coloring, and good electrical insulation. It is widely used in outdoor products such as packaging, building materials, automobiles, and electronics. [0003] In the past, the rapid prediction of the service life of PS materials was mainly realized through artificial accelerated aging experiments. The test methods include xenon lamp accelerated aging, ultraviolet lamp accelerated aging and other methods. Although the artificial accelerated aging test has a short cycle and fast aging time, there is a big difference between the artificial light source...

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
IPC IPC(8): G01N17/00G06F30/20G06F119/04
CPCG01N17/00G01N17/004
Inventor 陶友季时宇揭敢新覃家祥
Owner CHINA NAT ELECTRIC APP RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap