Natural aging influence factor decoupling test box and aging factor decoupling test method

Abstract

The invention discloses a natural aging influence factor decoupling test box, and belongs to the technical field of material aging resistance test auxiliary tools, and the test box is provided with a box body used for lamellar simulation of a product service environment; the box body comprises a top plate which is used for forming an open type natural aging working condition service environment on the top layer; the partition plates are arranged below the top plate and are used for partitioning the inner space of the box body, so that different service environment layers are formed above and below the partition plates, ventilation openings are formed in the side wall of at least one layer of the box body and are used for air circulation, the box body can be separated at the positions of the top plate and the partition plates to form a plurality of box body split bodies, and the box body split bodies are arranged in the box body. According to the natural aging influence factor decoupling test box, main factors causing material aging are clear, accurate weather resistance test data are provided for aging research of high polymer materials, and the natural aging influence factor decoupling test box has the beneficial effects of simple structure, low manufacturing cost and wide application range.

Description

Technical Field

[0001] This invention relates to the field of auxiliary tooling technology for material aging resistance testing, and in particular to a natural aging influencing factors decoupling test chamber and aging factor decoupling test method. Background Technology

[0002] With the increasing demand for durable materials in modern industry, especially in aerospace, rail vehicles, and construction, the requirements for the aging resistance of materials are becoming increasingly stringent. In practical applications, easily aging materials such as rubber and plastics are typically exposed to the natural environment, subjecting themselves to various environmental factors such as light, temperature, and humidity, inevitably affecting their performance. Furthermore, due to differences in material formulations and processing techniques, the main factors influencing material aging also differ. Therefore, decoupling the factors affecting material aging and identifying their main influencing factors is crucial for evaluating the aging performance of materials under different environments, conducting weather resistance studies, and predicting their lifespan.

[0003] Currently, aging tests for engineering materials mainly include natural aging tests and accelerated aging tests. Natural aging tests expose materials to real environments, but have limitations such as single aging conditions or difficulty in decoupling influencing factors, making it impossible to accurately assess the individual effects of different environmental factors on materials. Although accelerated aging tests can simulate the accelerated aging process of products, the test conditions often differ from the actual usage environment, and the test process requires the selection of a reasonable acceleration factor. If the acceleration factor is not selected properly, it may not accurately reflect the actual aging condition of the product, resulting in test results that cannot effectively guide material formulation optimization or service life prediction.

[0004] Therefore, based on the above problems, there is an urgent need to develop a test chamber that can decouple the factors affecting the aging of materials and simulate various aging conditions to meet the market demand for testing the weather resistance of easily aging materials. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a natural aging influencing factor decoupling test chamber that can clearly identify the main factors leading to material aging and provide accurate weather resistance test data for the aging research of polymer materials.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The natural aging influencing factors decoupling test chamber disclosed in this invention includes:

[0008] Enclosure used to simulate the service environment of layered products;

[0009] The enclosure includes a top plate for creating an open, natural aging service environment on the top layer; it also includes...

[0010] A partition is installed below the top plate to separate the internal space of the enclosure, so as to form different service environment layers above and below the partition. At least one side wall of the enclosure has a ventilation opening for air circulation, and the enclosure can be separated at the top plate and the partition to form multiple enclosure parts.

[0011] Furthermore, the enclosure also includes a middle enclosure and a lower enclosure;

[0012] The middle layer box is designed to enclose the service environment chamber in a circumferential manner, and the middle layer box has several ventilation openings.

[0013] The lower housing has a bottom wall and side walls, and the side walls circumferentially enclose the service environment chamber.

[0014] Furthermore, the bottom plate of the lower box is used to support the product sample, which is wrapped in a plastic film.

[0015] Furthermore, the box structure has three layers.

[0016] Furthermore, multiple support blocks are fixed to the bottom of the box to support the box away from the ground.

[0017] Furthermore, the box body, top plate, and partition are all made of wood.

[0018] The invention utilizes the aforementioned natural aging influencing factor decoupling test chamber to achieve a method for decoupling aging factors. This method uses the chamber to perform aging factor decoupling tests layer by layer, realistically reproducing the aging process of the product under the usage environment.

[0019] The top layer receives sunlight, simulating natural aging conditions;

[0020] The middle layer eliminates the aging effect of light on the material;

[0021] By eliminating light exposure at the bottom layer and isolating the material from air, the material is only affected by temperature changes, thus isolating the aging effect of temperature on the material.

[0022] In the above technical solution, the natural aging influencing factors decoupling test chamber provided by the present invention forms a multi-layered product service environment layer through the top plate and partitions. The top plate and partitions are designed to separate each layer, allowing the number of layers to be added or removed according to test requirements. Furthermore, the entire chamber is made of wood. This test chamber is not only simple in structure and widely applicable, but also accurately reproduces the actual service environment of the product, effectively decoupling the influencing factors of material aging in the natural environment.

[0023] In the above technical solution, the aging factor decoupling test method provided by the present invention utilizes the aforementioned test chamber to identify the dominant factors of material aging, providing reliable test data for product weather resistance research. Simultaneously, the test results can be used to guide the optimization of product formulations, thereby extending product service life and meeting the needs of modern industry for cost reduction and improved product durability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the natural aging influencing factors decoupling test chamber disclosed in this invention;

[0026] Figure 2 This is an exploded view of the natural aging influencing factors decoupling test chamber disclosed in this invention;

[0027] Figure 3 This is a schematic diagram of the dumbbell-shaped sample structure disclosed in this invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Top panel; 2. Middle layer box; 21. Ventilation opening; 3. Partition; 4. Lower layer box; 5. Support block; 6. Product sample; 7. Plastic film. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See Figure 1 , 2 As shown;

[0032] The invention relates to a decoupling test chamber for natural aging influencing factors, suitable for testing product samples in numerous fields involving polymer materials such as rubber, plastics, coatings, seals, and cable sheaths. Product sample 6 is a dumbbell-shaped sample (e.g., Figure 3 (As shown), of course, other shapes of specimens are also possible. This embodiment uses a dumbbell-shaped specimen as an example.

[0033] The test chamber includes: a chamber body;

[0034] The enclosure is used to simulate the service environment of the product in a layered manner. The enclosure includes a top plate 1 and a partition 3.

[0035] The top plate 1 is set on the top of the box 1 to form an open natural aging service environment on the top layer and to block the light of the middle service environment layer below the top edge 1.

[0036] The partition 3 is located below the top plate 1, thereby separating the internal space of the enclosure, thus forming different service environment layers above and below the partition 3, and opening a ventilation opening 21 on the side wall of at least one layer of the enclosure to allow air circulation within the service environment layer.

[0037] The box can be separated at the top plate 1 and the partition 3 to form an independent box body, which facilitates the protection of product sample 6 in each service environment layer.

[0038] Preferably, the enclosure comprises three layers: upper, middle, and lower, with a multi-layer structure design. It can be designed with corresponding aging conditions according to the product's service environment, thereby realistically reproducing the aging process of the product under the service environment. This provides real and reliable data support for the product's weather resistance research. Furthermore, the multi-layer structure design allows for the simultaneous conduct of multiple aging condition tests, thereby improving test efficiency.

[0039] Of course, it is not limited to a three-layer structure. The chamber can have more than three layers, or it can be reduced to two layers according to the test requirements. The chamber is separated at the top plate 1 and the partition 3 to form a module. The layers are independent and have an expandable design. Users can add or remove the number of chamber layers according to the test requirements. If aging conditions other than the three mentioned above are required, the number of test chamber layers can be increased. According to the actual service environment of the product, the required test conditions can be met by adjusting the chamber structure and introducing artificial measures.

[0040] See Figure 2 As shown:

[0041] Preferably, the enclosure also includes a middle enclosure 2 and a lower enclosure 4;

[0042] The middle box 2 is constructed to form a service environment chamber that can be enclosed circumferentially. Specifically, it is a panel structure with open top and bottom, and together with the top plate 1 and partition 3, or two adjacent partitions 3, it forms an independent service environment layer that can block light. Taking a three-layer box as an example, the middle box 2 has several ventilation openings 21.

[0043] The lower chamber 4 has a bottom wall and side walls. The side walls circumferentially enclose the service environment chamber. That is, the lower chamber 4 is closed at the bottom by the bottom wall and has an open structure at the top for installing the partition 3. The bottom plate of the lower chamber 4 is used to support the product sample, which is wrapped with a plastic film 7. See below. Figure 3 As shown.

[0044] During the aging factor decoupling test: the open upper service environment layer formed by top plate 1 mainly considers the natural aging conditions of the materials;

[0045] The middle layer blocks light through the top plate 1 and supports the product sample 6 through the partition 3 as a support plate. In addition, the middle layer box 2 has multiple ventilation holes 21 around its perimeter to allow air circulation, thereby eliminating the aging effect of light on the material.

[0046] The bottom layer is shielded from sunlight by a partition 3 on the upper part of the lower box 4, and the product sample 6 inside the box is wrapped with a plastic film 7 to isolate it from the air, so that the material is only affected by temperature change factors, thereby separating the aging effect of temperature on the material.

[0047] Preferably, the chamber is a cuboid structure, with support blocks 5 at each of the four corners of its bottom. The support blocks 5 ensure the stability of the test chamber and effectively prevent other water sources on the ground from seeping into the chamber.

[0048] Preferably, the box body, top plate 1, and partition 3 are made of wood, which has the advantages of being durable, low cost, lightweight, and easy to process, and is also able to meet the needs of long-term use in outdoor environments.

[0049] The invention provides a method for decoupling aging factors using the aforementioned natural aging influencing factors decoupling test chamber. This method utilizes the chamber to perform aging factor decoupling tests layer by layer, realistically reproducing the aging process of the product under the usage environment.

[0050] The top layer receives sunlight, simulating natural aging conditions;

[0051] The middle layer eliminates the aging effect of sunlight on the materials through the top plate;

[0052] The bottom layer eliminates light exposure through the middle layer and wraps the material in a plastic film to isolate it from air, so that the material is only affected by temperature changes, thus separating the aging effect of temperature on the material.

[0053] In the above technical solution, the present invention provides a natural aging influencing factor decoupling test chamber and an aging factor decoupling test method;

[0054] The natural aging influencing factors decoupling test chamber has the advantages of simple structure and wide applicability. It can realistically reproduce the actual service environment of products and achieve effective decoupling of the influencing factors of material aging in the natural environment.

[0055] The decoupling test method for aging factors utilizes this test chamber to identify the dominant factors in material aging, providing reliable experimental data for product weather resistance research. Simultaneously, the test results can be used to guide the optimization of product formulations, thereby extending product lifespan and meeting the demands of modern industry for cost reduction and improved product durability. The promotion and application of this invention will strongly promote the professional development of polymer material weather resistance research, demonstrating promising market application prospects.

[0056] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A natural aging influencing factors decoupling test chamber, characterized in that, include: Enclosure used to simulate the service environment of layered products; The enclosure includes a top plate (1) for creating an open, natural aging service environment on the top layer; it also includes... A partition (3) is provided below the top plate (1) to separate the internal space of the box, so as to form different service environment layers above and below the partition (3). At least one side wall of the box is provided with a ventilation opening (21) for air circulation, and the box can be separated at the position of the top plate (1) and the partition (3) to form multiple box parts.

2. The natural aging influencing factors decoupling test chamber according to claim 1, characterized in that: The enclosure also includes a middle enclosure (2) and a lower enclosure (4); The middle box (2) is constructed to form a service environment chamber by surrounding the middle box (2), and several ventilation openings (21) are provided on the middle box (2). The lower housing (4) has a bottom wall and side walls, which circumferentially enclose the service environment chamber.

3. The natural aging influencing factors decoupling test chamber according to claim 2, characterized in that: The bottom plate of the lower box (4) is used to support the product sample (6), which is wrapped with a plastic film (7).

4. The natural aging influencing factors decoupling test chamber according to claim 2, characterized in that: The box structure has three layers.

5. The natural aging influencing factors decoupling test chamber according to any one of claims 1-4, characterized in that: Multiple support blocks (5) are fixed to the bottom of the box to support the box away from the ground.

6. The natural aging influencing factors decoupling test chamber according to any one of claims 1-4, characterized in that: The box body, top plate (1) and partition (3) are all made of wood.

7. A method for decoupling aging factors using the natural aging influencing factors decoupling test chamber according to any one of claims 1-6, characterized in that: This method utilizes the chamber to conduct layer-by-layer decoupling tests of aging factors, realistically reproducing the aging process of the product under the usage environment; The top layer receives sunlight, simulating natural aging conditions; The middle layer eliminates the aging effect of light on the material; By eliminating light exposure at the bottom layer and isolating the material from air, the material is only affected by temperature changes, thus isolating the aging effect of temperature on the material.

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