JP3331548B1 - Weathering test apparatus and method - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide a weather resistance test apparatus and method using a hydrogen peroxide solution, wherein the operation is simplified, resources can be reused, and the test uniformity is further improved. And provide a method. SOLUTION: A sample container which can be filled with a hydrogen peroxide solution and an oxygen-containing vapor and has a vent, and a used hydrogen peroxide solution is fed in to generate oxygen by a catalytic action of manganese dioxide. It has a hydrogen peroxide water temporary storage tank, a rotary joint, etc., which can rotate the sample container together with the sample frame while sending the hydrogen peroxide solution and the oxygen-containing vapor to the sample container.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weathering test apparatus and method. More specifically, the present invention relates to a weather resistance test apparatus and method for performing a weather resistance test using a hydrogen peroxide solution by a xenon lamp, a sunshine carbon arc lamp, or a metal halide lamp provided in a test tank in a vertical direction.

[0002]

2. Description of the Related Art As a conventional weathering light test method and apparatus,
As described in JP-A-2000-121543, a step of allowing an aqueous solution of an oxidizing agent and light to act on a test object substantially simultaneously, and a step of causing one or more of water, oxygen, and light to act on a test object. And a step of applying a plurality of these operations cyclically. Also, JP-A-2000-9
Japanese Patent Publication No. 7842 discloses an arrangement in which a lamp is disposed in a horizontal direction and the lower end of a support mechanism is sequentially immersed in an aqueous solution of a substance that releases active oxygen when rotated. In addition, as a related invention, Japanese Patent Application No. 2001-396 filed by the present inventors.
962.

However, in a conventional test apparatus described in Japanese Patent Application Laid-Open No. 2000-121543,
(A) After the sample is immersed in pure water, the sample must be taken out, immersed again in an aqueous solution of hydrogen peroxide, etc., and the sample must be taken out and put back in air, etc., which makes the operation complicated. (B) wastewater contains harmful oxidizing agents, (c) equipment and cost for supplying oxygen are required, and (d) light with uniform radiant energy cannot be irradiated. And (e) there is a problem that the gas cannot be circulated because the test is performed in a closed state. Also in the test apparatus described in JP-A-2000-97842, (f) it is not possible to make one rotation around the light source while immersed, and (g) the radiation energy of the light received during immersion and during non-immersion (H) the light received by the sample during immersion is not uniform due to the angle between the sample and the water surface and the light source and the water depth, and (iii) the work of replacing the aqueous solution after immersion in the sample is complicated. There was a problem.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem. Therefore, an object of the present invention is to (a) perform a test in all steps without removing a sample from a test tank; The work is simple, (b) the effluent is converted into harmless water, and (c) oxygen is generated by applying a catalyst to the hydrogen peroxide solution, and an apparatus such as an oxygen cylinder is used by using the oxygen. And resources can be reused, and (d) all samples can be irradiated with light of uniform radiant energy. (E) Gas can be continuously supplied for testing to allow ventilation. There is,
(F) that the sample can be rotated once around the light source while it is immersed; (g) the radiant energy of the light received during immersion and non-immersion is uniform; (h) the sample, the water surface, and the light source (1) to provide a weathering light test apparatus and method satisfying that the angle and the water depth are constant, the light received by the sample during immersion is uniform, and (i) the operation of replacing the aqueous solution after immersion of the sample is simple. It is in. The present inventors have conducted intensive studies to achieve the above object, and as a result, completed the present invention after trial and error.

[0005]

In order to achieve the above object, a weathering test apparatus according to the present invention comprises an annular type rotating around a light source provided vertically in a test tank. (Vii) a weatherproof light test apparatus having a sample rotation frame and a sample holder suspended on the sample rotation frame, wherein (vii) the sample holder can be attached to the sample rotation frame, a ventilation means is provided, a glass filter is provided on a side of a light source side, and The sample can be inserted into
A sample container capable of filling the hydrogen peroxide solution and the oxygen-containing vapor, (viii) a hydrogen peroxide solution capable of supplying the hydrogen peroxide solution to the sample container, having heating means, and being filled with the hydrogen peroxide solution Tank, (ix) a temporary storage tank of hydrogen peroxide solution having manganese dioxide and capable of generating oxygen by sending and reusing used hydrogen peroxide solution discharged from the sample container, (x) A steam generator for feeding oxygen generated from the hydrogen peroxide water temporary storage tank, filling the pure water, having heating means, and supplying oxygen-containing vapor to the sample container; Means having an upper part rotatable with the sample rotating frame, a lower part fixed, and a lower end connected to the hydrogen peroxide solution tank, the hydrogen peroxide solution temporary storage tank or the steam generator. With a hollow inside and a top Supply of hydrogen peroxide water or vapor into the sample container while rotating the rotary joint capable of fed and discharged, the test vessel (xii) pure water
It is characterized by having means for supplying .

[0006]

[0007] weathering light test method of the present invention, vertical to the test chamber
With the light source provided in the vertical direction as the center, the sample is moved around the light source.
In the weather resistance test method performed by rotating the enclosure, (a)
(Step C-iii) supplying pure water into the sample container;
(Step C-iv) While immersing the sample in the pure water,
It is said that light is emitted while rotating around the light source
Test process C having each step, (b) (Step A-
iv) Insert the sample into the sample container, and put peroxide into the sample container.
Supply hydrogen water (Step A-v).
While immersed in plain water, rotate the light around the light source
(Step A-vi) Used in the sample container
Test with each step of discharging hydrogen peroxide water
Test process A, (c) (Step B-iv) Spent peroxide water
Oxygen is generated from raw water by the catalysis of manganese dioxide.
(Step B-v) Take out the generated oxygen,
Oxygen-containing steam together with steam generated by heating pure water
Supplied to the sample container as, (step B-vi) sample
Do not rotate around the light source while exposing
Test process with each step of irradiating light
Repeat the three test steps B one or more times
The order of test process C, test process A and test process B
Characterized by repeating the cycle one or more times.
You.

[0008]

[0009]

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a structural view of a principal part of a weathering test apparatus according to a first embodiment of the present invention. FIG. 2 is an overall view of a weather resistance test apparatus according to a first embodiment of the present invention. 1 and 2
(1) Weathering light test device (28) of Example 1 of the present invention shown in
Is a ring-shaped sample rotating frame (6) that rotates around a light source (3) provided in a test tank (27) in a vertical direction, and a sample holder (6) suspended on the sample rotating frame. 14) and a sample container (1) as described in detail below.
0), hydrogen peroxide solution tank (1), hydrogen peroxide solution temporary storage tank (24), steam generator (11), piping (15
a, 15b, 15c, 15d) and a rotary joint (5). An annular sample rotation frame (6) rotating around the light source is rotated by a rotation motor.

The sample container (10) of the weathering test apparatus according to the first embodiment of the present invention has a glass filter (4) on one side, a hollow inside, and a lid (12) on the top. is there. As a venting means, a vent (7) is provided in the lid (12) on the upper surface. By opening the lid (12), the sample (13) can be inserted inside. Then, the lower part of the sample container (10) is connected to the rotary joint (5), and from the rotary joint (5) to the inside of the sample container (10),
Hydrogen peroxide water and oxygen-containing steam can be filled.
The sample container (10) is connected to the sample holder (1) using screws or the like.
4) can be attached. When attaching to the sample holder (14), use the glass filter (4)
And The glass filter (4) can be replaced by opening the lid (12) on the upper surface of the sample container (10). Depending on the wavelength range of the light to be tested, a glass filter that transmits light in an appropriate wavelength range is used.

With this sample container (10), the sample (13) can be circulated around the light source for any number of revolutions while the sample (13) is immersed in the hydrogen peroxide solution. A weather resistance test using a hydrogen oxide solution can be performed. Further, since the sample (13) can be made to orbit around the light source while being exposed to the oxygen-containing vapor, it is possible to perform a weathering test with saturated vapor in an oxygen atmosphere under uniform light irradiation. A weathering light test in which light is irradiated while immersed in a hydrogen peroxide solution and a weathering light test in which light is irradiated while being exposed to saturated vapor in an oxygen atmosphere can be continuously performed without removing a sample. Further, since the ventilation port (7) is provided, the oxygen-containing vapor supplied to the inside of the sample container (10) can be continuously supplied during the supply period. Further, since the wavelength of light to be transmitted is different depending on the type of glass filter, light irradiation tests of various wavelengths can be performed by selecting the glass filter.

The hydrogen peroxide solution tank (1) serves to supply the hydrogen peroxide solution to the sample container (10). The hydrogen peroxide water tank (1) has a heating means, for example, a heater (8) as shown in FIG. The hydrogen peroxide solution tank (1) is filled with hydrogen peroxide solution, and the temperature of the hydrogen peroxide solution is adjusted by the heater (8). In Example 1 of the weathering test apparatus of the present invention, the temperature of the hydrogen peroxide solution was adjusted to 55 ° C or higher and 65 ° C or lower. The hydrogen peroxide solution in the hydrogen peroxide water tank (1) passes through the pipe (1a) through the pipe (15a) connected to the hydrogen peroxide water tank (1).
It is supplied to the inside of the sample container (10) via the rotary joint (5) by the pump A (16) attached to 5a). Pump A (16) is controlled by controller (22). Also, the sample container (10)
Is controlled by opening and closing the solenoid valve A (18) controlled by the controller (22). In Example 1 of the weathering test apparatus of the present invention, the concentration of the hydrogen peroxide solution is 1.5%.

The hydrogen peroxide water temporary storage tank (24)
Has a manganese dioxide inside and uses the used aqueous hydrogen peroxide discharged from the sample container (10) to the sample container (1).
Pump B attached to the pipe (15b) via the rotary joint (5) through the pipe (15b) connecting the hydrogen peroxide water temporary storage tank (24) to the temporary storage tank (24).
According to (17), the hydrogen peroxide water temporary storage tank (2
4) Supplied inside. The pump B (17) is controlled by the controller (22). The supply of the used hydrogen peroxide solution to the hydrogen peroxide solution temporary storage tank (24) is controlled by opening and closing the solenoid valve C (20) controlled by the controller (22). Oxygen is generated from the used hydrogen peroxide solution supplied to the hydrogen peroxide solution temporary storage tank (24) by the catalytic action of manganese dioxide. 1 to 1 liter of used hydrogen peroxide solution
1.5 liters of oxygen are evolved.

The hydrogen peroxide solution after generating oxygen becomes harmless water. Such harmless water is drained. Drainage
The solenoid valve D (2) controlled by the controller (22)
It is controlled by opening and closing of 1).

The steam generator (11) has a heating means, for example, a heater (8) as shown in FIG. The steam generator (11) is filled with pure water and boiled by the heater (8) to generate steam. Then, oxygen generated in the hydrogen peroxide water temporary storage tank (24) is inserted into the steam through the pipe (15c) and mixed to form oxygen-containing steam. Further, the oxygen-containing vapor can be supplied to the sample container (10) through the pipe (15d) and the rotary joint (5). Steam generator (1
The supply of the oxygen-containing vapor from 1) to the sample container (10)
The solenoid valve B (1) controlled by the controller (22)
It is controlled by the opening and closing of 9).

The pipe (15) includes a pipe (15a) connecting the rotary joint (5) and the hydrogen peroxide tank (1), a rotary joint (5) and an upper surface of the steam generator (11). The connecting pipe (15d), the connecting pipe (15b) connecting the rotary joint (5) and the hydrogen peroxide water temporary storage tank (24), the hydrogen peroxide water temporary storage tank (24) and the steam generator ( 11) Piping (15c) connecting to the upper part. Piping (15) connecting the rotary joint (5) and the hydrogen peroxide tank (1)
Hydrogen peroxide solution flows in a). Piping (15) connecting the rotary joint (5) and the steam generator (11)
An oxygen-containing vapor flows in d). Used hydrogen peroxide solution flows in a pipe (15b) connecting the rotary joint part (5) and the hydrogen peroxide solution temporary storage tank (24). Oxygen flows in a pipe (15c) connecting the hydrogen peroxide water temporary storage tank (24) and the steam generator (11).

The oxygen generated in the temporary storage tank (24) of the hydrogen peroxide solution and sent to the steam generator (11) is supplied to the inside of the sample container (10).
0) The internal space is a saturated steam atmosphere having an oxygen concentration of almost 100%.

Embodiment 1 of the weathering test apparatus of the present invention
, A xenon lamp having radiant energy at a wavelength of 300 nm to 400 nm was used as the light source (3).
As a light source, a sunshine carbon arc lamp or a metal halide lamp can be used.

FIG. 3 is a structural view of a rotary joint portion of the weather resistance test apparatus according to the first embodiment of the present invention. The rotary joint part (5) has a multi-joint (2a) at the upper end as a means for connecting to each sample container, the upper and lower parts consist of a separated hollow shaft (9), and the upper hollow shaft (9) )
A rotary joint (25) is sandwiched between the shaft and the lower hollow shaft (9). Rotary joint (2
5) is connected to a rotary motor, and can rotate the upper portion of the rotary joint (5) together with the sample rotating frame (6). On the other hand, the lower part of the rotary joint (5) is fixed. At the lower end of the rotary joint (5), there is a multi-joint (2b), and piping (15a, 15b, 15
c) and connected to a hydrogen peroxide solution tank (1), a hydrogen peroxide solution temporary storage tank (24) or a steam generator (11). The inside of the rotary joint (5) is hollow, and it is possible to feed and discharge hydrogen peroxide water or steam into and from the sample container while rotating the upper part. Rotary joint (2) of rotary joint (5)
Since the lower part from 5) is connected to the rotary joint (25) and its upper part without being fixed, it does not rotate even if the sample rotating frame (6) rotates.

The rotary joint section (5) introduces hydrogen peroxide water and oxygen-containing vapor into the sample container (10) from the pipe (15a) and the pipe (15c), respectively, and then connects the pipe (15) from the sample container (10). 15b) serves to discharge the used hydrogen peroxide solution. By having such a rotary joint part (5), the sample rotating frame (6) can be rotated around the light source while the sample is immersed, so that light of uniform radiant energy can be applied to all the samples. Can be irradiated. In addition, the angle between the sample, the water surface, and the light source can be always constant, so that the light received by the sample during immersion is uniform. Further, the radiant energy of light received during immersion and non-immersion becomes uniform.

In the second embodiment of the weathering test apparatus of the present invention,
(I) It can be attached to the sample holder, has ventilation means, has a glass filter on the side on the light source side, can insert a sample inside, and can be filled with hydrogen peroxide water and oxygen-containing vapor. A sample container, (ii) a hydrogen peroxide solution tank capable of supplying hydrogen peroxide solution to the sample container, having a heating means, and filled with hydrogen peroxide solution, and (iii) a manganese dioxide tank, A temporary storage tank of hydrogen peroxide that can generate oxygen by sending and reusing used hydrogen peroxide discharged from the plant, and (iv) sending oxygen generated from the temporary storage tank of hydrogen peroxide. A steam generator for supplying oxygen-containing steam to the sample container, filling the sample container with pure water, and (v) having a means for connecting to each sample container at the upper end, the upper portion of the sample rotating frame Can be rotated with The hydrogen peroxide water tank,
It has a means to connect to the hydrogen peroxide water temporary storage tank or the steam generator, the inside is hollow, and it is possible to send and discharge hydrogen peroxide water or steam into the sample container while rotating the upper part In addition to the simple rotary joint, there is further provided a means for supplying pure water to the test container.

FIG. 4 is a structural view of a main part of a second embodiment of a weathering test apparatus according to the present invention. As shown in FIG. 4, in the second embodiment of the weathering light test device of the present invention, the device of the first embodiment of the weathering light test device of the present invention is provided with the lower part of the steam generator (11) and the pipe (15a). A pipe (15e) connecting the two is added. The pipe (15e) has a solenoid valve E (26) controlled by the controller (22). Piping (15e)
Is connected between a solenoid valve A (18) provided on the pipe (15a) and a pump A (16). In the apparatus of the second embodiment, the steam generator (11) is connected to the pipe (15).
e), a pipe (15a) and a steam generator (1) in a sample container (10) through a rotary joint (5).
Pure water can be supplied from 1). In Example 2 of the weathering test apparatus of the present invention, the temperature of pure water was adjusted to 55 ° C or higher and 65 ° C or lower. In the case of the second embodiment of the weathering light test apparatus of the present invention, hot water also flows inside the rotary joint (5).

FIG. 5 is a flow chart of a test process A in Example 1 of the weathering light test method of the present invention. In Example 1 of the weathering light test method of the present invention, (Step A-i) a sample is inserted into a sample container, and a hydrogen peroxide solution is supplied into the sample container.
(Step A-ii) Irradiating light while rotating the light source while the sample is immersed in the hydrogen peroxide solution, (Step A-iii) Discharging the used hydrogen peroxide solution in the sample container The test process A having each step is repeated one or more times. In the first embodiment of the weathering test method of the present invention, the first embodiment of the weathering test apparatus of the present invention shown in FIG. 1 is used. Hereinafter, the test process A will be described in more detail.

First, a sample is placed in a sample container attached to a sample holder in a test tank. The sample rotation frame (6) is rotated.

Next, the solenoid valve A is turned "ON" and the pump A
To “ON” and solenoid valves B and C to “OFF”
Then, the pump B is turned "OFF", and the hydrogen peroxide solution is introduced from the hydrogen peroxide solution tank into the sample container to such an extent that the sample is immersed. In Example 1 of the weathering light test method of the present invention, the temperature of the hydrogen peroxide solution was adjusted to 55 ° C or higher and 65 ° C or lower.

Then, while the sample is immersed in the hydrogen peroxide solution, light is irradiated by rotating the sample rotating frame on which the sample holder is mounted around the light source.

Further, the solenoid valves A and B are set to "OF".
F ", the pump A is turned" OFF ", the solenoid valve C is turned" ON ", the pump B is turned" ON ", and the sample is discharged from the sample container.

In Example 1 of the weathering test method of the present invention, the deterioration test is performed by repeating the test process A at least once.

FIG. 6 is a flow chart of a test process B in Example 2 of the weathering test method of the present invention. In Example 2 of the weathering test method of the present invention, after the test process A, (Step Bi) oxygen is further generated from the used hydrogen peroxide solution by the catalysis of manganese dioxide.
ii) Take out the generated oxygen and supply it as oxygen-containing vapor into the sample container together with the vapor generated by heating the pure water. (Step B-iii) While exposing the sample to the oxygen-containing vapor, A cycle for performing the test process B having each step of irradiating light while rotating around is defined as 1 cycle.
Or repeat several times. In the second embodiment of the weathering test method of the present invention, the first embodiment of the weathering test apparatus of the present invention shown in FIG. 1 is used. Hereinafter, the test process B will be described in more detail.

After the completion of the test process A, the used hydrogen peroxide solution discharged from the sample container is introduced into a hydrogen peroxide solution temporary storage tank, and the hydrogen peroxide solution is catalyzed using manganese dioxide. To generate oxygen.
Such used hydrogen peroxide water becomes harmless water after generating oxygen. Such harmless water sets the solenoid valve D to “O
N ”and drain.

Next, oxygen generated in the hydrogen peroxide water temporary storage tank is introduced into a steam generator, and mixed with steam generated by boiling pure water in the steam generator to form oxygen-containing steam. , Solenoid valve A and solenoid valve C as “OF
F ", the pumps A and B are turned" OFF ", the solenoid valve B is turned" ON ", and oxygen-containing vapor is introduced into the sample container.

Further, the sample is irradiated with light by rotating the sample rotating frame (6) around the light source while continuously introducing the oxygen-containing vapor into the sample container.

In Example 2 of the weathering test method of the present invention, the deterioration test is performed by repeating the cycle of the test process A and the test process B at least once. The entire cycle can be repeated without removing the sample.

In the temporary storage tank for hydrogen peroxide solution,
The reaction represented by

[0037]

Embedded image

In the second embodiment, for example, after the start of the sample and until the end of the test, the sample is not taken out. Is exposed to oxygen-containing vapor for 5 hours, and the test is performed in three cycles in the order of test process A and test process B.

FIG. 7 is a flow chart of a test process C in Example 3 of the weathering test method of the present invention. In Example 3 of the weathering test method of the present invention, before the test process A, (Step Ci) pure water is supplied into the sample container (Step Ci)
i) While the sample is immersed in the pure water, a cycle of performing the test process C including each step of irradiating light while rotating around the light source is repeated one or more times.
In the third embodiment of the weathering test method of the present invention, the second embodiment of the weathering test apparatus of the present invention shown in FIG. 4 is used. Hereinafter, the test process C will be described in more detail.

Before the test process A, a sample is placed in a sample container attached to a sample holder in a test tank, and a sample rotating frame (6) is rotated. Then, the solenoid valve A, the solenoid valve B and the solenoid valve C are turned “OFF”, the solenoid valve E is turned “ON”,
Turn on pump A, turn off pump B,
The pure water in the steam generator is supplied into the sample container so that the sample is immersed in the pure water. Example 3 of the weathering test method of the present invention
, The pure water in the steam generator is 55 ° C or higher and 65 ° C or higher.
The temperature was adjusted as follows.

Then, while immersing the sample in pure water,
Light irradiation is performed by rotating a sample rotation frame to which a sample holder is attached around a light source.

Further, the solenoid valve A, the solenoid valve B and the solenoid valve E are set to "OFF", the pump A is set to "OFF", the solenoid valve C is set to "ON", and the pump B is set to "ON". Drain used water from

In Example 3 of the weathering test method of the present invention, the deterioration test is performed by repeating the cycle of the test process C and the test process A one or more times. The entire cycle can be repeated without removing the sample.

In Example 4 of the weathering test method of the present invention, the deterioration test is performed by repeating the cycle of the test process C, the test process A, and the test process B at least once. The entire cycle can be repeated without removing the sample.

[0045]

The weathering light test apparatus and method of the present invention are as described above. (A) The test can be performed in all steps without removing the sample from the test tank, and the operation is simple.
(B) Converting wastewater into harmless water, (c) generating oxygen by causing a catalyst to act on hydrogen peroxide water, and using the oxygen eliminates the need for equipment and costs such as oxygen cylinders and other resources. Can be reused, (d) all samples can be irradiated with light of uniform radiant energy, (e) gas can be continuously supplied for testing to allow ventilation, and (f) samples (1) that the radiant energy of the light received when immersed and not immersed is uniform; (h) the angle between the sample, the water surface and the light source, and the water depth. Is constant, the light received by the sample during immersion is uniform,
(I) There is an effect that the work of replacing the aqueous solution after the sample immersion is simple.

Since the sample container has a glass filter, light irradiation tests of various wavelengths can be performed by selecting such a glass filter.

[Brief description of the drawings]

FIG. 1 is a structural diagram of a main part of a weather resistance test apparatus according to a first embodiment of the present invention.

FIG. 2 is an overall view of a weather resistance test apparatus according to a first embodiment of the present invention.

FIG. 3 is a structural view of a rotary joint portion of the weathering light test apparatus according to the first embodiment of the present invention.

FIG. 4 is a structural diagram of a main part of a second embodiment of the weathering light test apparatus according to the present invention.

FIG. 5 is a test process A flow chart of Example 1 of the weathering light test method of the present invention.

FIG. 6 is a flowchart of a test process B in Example 2 of the weathering test method of the present invention.

FIG. 7 is a test process C flow chart of Example 3 of the weather resistance test method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hydrogen peroxide water tank 2 Joint 3 Light source 4 Glass filter 5 Rotary joint part 6 Sample rotation frame 7 Vent 8 Heater 9 Hollow shaft 10 Sample container 11 Steam generator 12 Lid 13 Sample 14 Sample holder 15 Piping 16 Pump A 17 Pump B 18 Solenoid valve A 19 Solenoid valve B 20 Solenoid valve C 21 Solenoid valve D 22 Controller 23 Sample holder 24 Hydrogen peroxide water temporary storage tank 25 Rotary joint 26 Solenoid valve E 27 Test tank 28 Weathering test device

Claims (2)

(57) [Claims] 1. A weathering test apparatus comprising: an annular sample rotating frame rotating around a light source provided around a light source provided vertically in a test tank; and a sample holder suspended from the sample rotating frame. (I) It can be attached to the sample holder, has ventilation means, has a glass filter on the side on the light source side, can insert a sample inside, and can be filled with hydrogen peroxide water and oxygen-containing vapor. A sample container, (ii) a hydrogen peroxide solution tank capable of supplying hydrogen peroxide solution to the sample container, having a heating means, and filled with hydrogen peroxide solution;
i) Temporary storage tank of hydrogen peroxide solution that has manganese dioxide and can generate oxygen by sending and reusing used hydrogen peroxide solution discharged from the sample container, (iv)
A steam generator for supplying oxygen generated from the hydrogen peroxide water temporary storage tank, filling with pure water, having a heating means, and supplying oxygen-containing vapor to the sample container. (V) Each sample container at the upper end. Means having an upper part rotatable with the sample rotating frame, a lower part fixed, and a lower end connected to the hydrogen peroxide solution tank, the hydrogen peroxide solution temporary storage tank or the steam generator. A rotary joint having a hollow interior and capable of feeding and discharging hydrogen peroxide water or steam into and from the sample container while rotating the upper portion ; (vi) means for supplying pure water to the test container A weathering light test device comprising: 2. A light source provided vertically in a test tank.
The weathering light performed by rotating the sample around the light source
In the test method, (a) (Step Ci) supplying pure water into the sample container
(Step C-ii) The sample was immersed in the pure water.
Irradiate light while rotating around the light source
Test procedure C with steps cormorants, the (b) (Step A-i) samples were inserted into the sample container, those
Supplying a hydrogen peroxide solution into the sample container (Step A
−ii) While the sample is immersed in the hydrogen peroxide solution,
Irradiate the light while rotating the (Step A-ii
i) Discharge used hydrogen peroxide solution in the sample container
Test procedure A with the steps cormorants, two to (c) (Step B-i) used hydrogen peroxide
Oxygen is generated by the catalysis of manganese oxide.
Step B-ii) Take out the generated oxygen and heat the pure water
Along with the steam generated by the
Supplied into the container, an oxygen containing (Step B-iii) sample
Irradiate the light while rotating it around the light source
Test process B having each step of firing
Repeat the test process one or more times,
The cycle of the order of C, test process A and test process B is 1 or
A weathering test method characterized by repeating a plurality of times.