Simulated acceleration test method for coating

An accelerated test and coating technology, which is applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of incomplete simulation accelerated test results and long test period, and achieve the effect of being conducive to application and popularization and reasonable test methods.

Inactive Publication Date: 2009-07-15
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The results of these two types of tests are not directly related, and their correlation is still under exploration and research. There

Method used

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  • Simulated acceleration test method for coating
  • Simulated acceleration test method for coating
  • Simulated acceleration test method for coating

Examples

Experimental program
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Embodiment 1

[0027] Embodiment 1: a kind of simulated accelerated test method of coating, comprising damp heat test, solar radiation test, salt spray test, it is characterized in that: described damp heat test, described solar radiation test, described salt spray test are combined sequentially , and loop.

[0028] The number of cycles of the damp heat test, the solar radiation test and the salt spray test is 12.

[0029] The test time of one cycle of the damp heat test, the solar radiation test and the salt spray test is 72 hours, wherein:

[0030] The damp heat test time is 24 hours, and the test conditions are: 2 hours heating: 30°C to 60°C, 16 hours high temperature and high humidity: 60°C, relative humidity 95%, 2 hours cooling: 60°C to 30°C, 4 hours Hourly low temperature and high humidity: 30°C, relative humidity 85%;

[0031] The solar radiation test time is 24 hours, the test conditions are: 20 hours of solar radiation, light source: 1120±47W / m 2 Water-cooled tubular xenon lamp,...

Embodiment 2

[0057] Embodiment 2: a kind of simulated accelerated test method of coating, present embodiment is except that the sample coating that adopts is the same kind of coating with the sample different batches of embodiment 1, implemented simulated accelerated test method, Test equipment, sample detection etc. are all the same as in Example 1. The appearance evaluation results of the samples in the test are shown in Table 3; Figure 5 .

[0058] Table 3 Appearance evaluation results of samples in damp heat-solar radiation-salt spray cycle test

[0059] Test time (h) discoloration chalking bubbling rust Comprehensive grade 0 0 0 0 0 0 72 0 0 0 0 0 144 1 1 0 0 1 288 1 1 0 0 1 432 2 1 0 0 1 576 3 2 0 0 2 720 3 3 0 1(S3) 3 864 4 3 1 2(S3) 4

[0060] Same as embodiment 1, also adopted the same batch of coating samples identical with the present embodiment to carry out the natural environment...

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Abstract

The invention relates to a coating simulation accelerated test method, comprising a damp heat test, a solar radiation test, a salt mist test, characterized in that the damp heat test, the solar radiation test and the salt mist test are combined in precedence order and circulate; circulation time of the damp heat test, the solar radiation test and the salt mist test is more ten. The coating simulation accelerated test method of marine environment adaptation check is reasonable, effective and rapid and obtains the outdoor long-time exposure test result using the indoor short-time testing; solves the practical problems of development and use, in favor of application and popularization of coating material.

Description

technical field [0001] The invention relates to a simulated accelerated test method for a coating, in particular to a simulated accelerated test method for evaluating the marine environment adaptability of a coating. Background technique [0002] At present, the environmental adaptability assessment of various coatings can be carried out by means of natural environment test and indoor simulated accelerated test. The natural environment test is to put the coated sample or product directly in the typical natural environment for exposure, through observing and testing the changes of its various properties, accumulating data, and analyzing the real environmental adaptability of the coating material Regularity, but the test period is longer; there are some common standard test methods for natural environment tests. The simulated accelerated test is a single test of some typical environmental factors in order to shorten the assessment time, such as high and low temperature test, ...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 田月娥朱蕾肖勇王津梅王艳艳牟献良
Owner NO 59 RES INST OF CHINA ORDNANCE IND
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