X-ray protective textile material with protection high voltage lower than 150kV and its manufacturing method

Abstract

The present invention relates to an X-ray multilayer textile protective material capable of protecting against high voltages below 150 kV and a method for producing the same. The use of the lead-free X-ray textile protective material and the method for producing the same provided by the present invention can accelerate the development of the entire X-ray multilayer textile protective material, provide a feasible solution for the development of new radiation protection materials, avoid a large number of aimless radiation experiments, and greatly promote the development of protective materials. Furthermore, the present invention provides a feasible method for quickly reducing the occupational radiation dose of X-ray device workers while protecting the environment. Furthermore, the method provided by the present invention provides a feasible method for quickly reducing the occupational radiation dose of X-ray device workers while protecting the environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of development of special textile materials and radiation protection materials, and relates to an X-ray multilayer textile protection material with protection against high voltage lower than 150kV and a manufacturing method thereof. Background Art

[0002] With the continuous development of radiological medicine and nuclear technology, X-rays are widely used in various fields of modern medicine, becoming an essential screening and monitoring method in disease prevention and medical treatment. Long-term exposure to X-rays can harm workers' gonads, breasts, and hematopoietic bone marrow. Excessive doses can even cause cancer, posing a serious threat and hidden danger to their health.

[0003] X-ray device workers often use protective materials primarily composed of lead. Both the production and use of lead-based materials present significant toxicity and environmental pollution issues. Therefore, from the perspectives of X-ray device workers' health and environmental protection, it is crucial to develop a new, lead-free, and environmentally friendly protective textile material and its preparation method to replace existing lead-based X-ray radiation protection products, thereby accelerating the development and application of X-ray radiation protection materials. Summary of the Invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide an X-ray multi-layer textile protective material with protection against high voltage below 150kV and a method for producing the same, so as to develop a new lead-free textile material for X-ray protection and a method for producing the same, accelerate the entire material development and application process, and reduce the occupational exposure dose of workers working in X-ray devices.

[0005] To achieve this object, the present invention provides a multi-layer textile protective material for X-rays with a protection voltage lower than 150 kV. The multi-layer textile protective material comprises two or more shielding functional layers and two or more peripheral structural layers, wherein:

[0006] The shielding function layer uses metal tungsten Wu and metal bismuth Bi as shielding materials, which are sorted according to the incident direction of the X-rays. The shielding function layer includes at least a first shielding function layer and a second shielding function layer;

[0007] The outer structural layer adopts fiber material as the outer structural layer material;

[0008] The peripheral structural layer wraps and fixes the shielding functional layer.

[0009] Furthermore, the mass ratio of metal tungsten Wu to metal bismuth Bi in the shielding functional layer is 1:1.

[0010] Furthermore, the first shielding function layer uses metal tungsten Wu as a shielding material, and the second shielding function layer uses metal bismuth Bi as a shielding material.

[0011] Furthermore, there is no reaction between the fiber material of the peripheral structural layer and the shielding material of the shielding functional layer that affects the structural strength of the shielding functional layer and the peripheral structural layer; there is no reaction between the fiber material of the peripheral structural layer and the shielding material of the shielding functional layer that changes the quality of the peripheral structural layer and the shielding functional layer; there is no static electricity generated by mechanical action between the fiber material of the peripheral structural layer and the metal material of the shielding functional layer.

[0012] The present invention also provides a method for manufacturing a multilayer textile X-ray protective material with a protection voltage lower than 150 kV, the method comprising the following steps:

[0013] (1) Manufacturing the shielding functional layer: Each shielding functional layer is made of a uniform structure using all-metal weaving, and each shielding functional layer is fixed by bonding and / or weaving;

[0014] (2) manufacturing the outer structural layer: using fiber materials to weave the outer structural layer with uniform structure;

[0015] (3) The shielding functional layer is wrapped, fixed and supported by the peripheral structural layer.

[0016] Furthermore, the mass thickness of the first shielding functional layer and the second shielding functional layer prepared in step (1) are consistent.

[0017] Furthermore, the mass per unit area of the shielding functional layer prepared in step (1) is controlled to be 2 kg / m 2 .

[0018] Furthermore, the uniformity of the quality of the shielding functional layer produced in step (1) is controlled to vary by less than 5%.

[0019] Furthermore, the mass of the peripheral structural layer produced in step (2) does not exceed 10% of the mass of the shielding functional layer.

[0020] Furthermore, in step (3), the outer structural layer is wrapped and fixed to the shielding functional layer by bonding and / or weaving connection, and provides flexible support for the shielding functional layer.

[0021] The beneficial effect of the present invention is that the use of the X-ray multi-layer textile protective material with a protective high voltage lower than 150kV and the production method thereof provided by the present invention can accelerate the development process of the entire X-ray multi-layer textile protective material, provide a feasible method for the development of new radiation protection materials, avoid a large number of aimless radiation experiments, and greatly promote the development of protective materials; at the same time, the method provided by the present invention provides a feasible method reference for quickly achieving both reducing the occupational exposure dose of X-ray device workers and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a four-layer X-ray textile protective material according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of a method for manufacturing an X-ray multi-layer textile protective material according to the present invention.

[0024] Figure 3 This is a diagram showing the protection characteristics of the four-layer X-ray textile protective material made from Examples 1 and 2 in the embodiments of the present invention. DETAILED DESCRIPTION

[0025] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1 and Figure 2 As shown, in view of the fact that X-ray radioactive rays are widely used and the X-ray characteristic spectrum components are diverse and complex, the present invention provides a four-layer textile protective material for X-rays with a protection voltage lower than 150kV and a manufacturing method thereof. The layers of the four-layer textile protective material are arranged in the order of X-ray incidence, and the X-rays pass through Figure 1 As shown in FIG, the first layer 1 is incident on the fourth layer 4, and the four-layer textile protective material includes two shielding functional layers and two peripheral structural layers. The manufacturing method thereof includes the following steps:

[0028] (1) Making shielding function layer: Figure 1The second layer 2 and the third layer 3 of the four-layer textile protective material shown in the figure are shielding functional layers; wherein, the second layer 2 adopts metal tungsten Wu as the shielding material, that is, metal tungsten Wu is adopted as the first shielding functional layer; the third layer 3 adopts metal bismuth Bi as the shielding material, that is, metal bismuth Bi is adopted as the second shielding functional layer; at the same time, each shielding functional layer adopts a full metal textile uniform structure, the mass ratio of metal tungsten Wu to metal bismuth Bi is 1:1 or close to 1:1, and the mass thickness of the first shielding functional layer and the second shielding functional layer are kept consistent, and the mass control of the shielding functional layer per unit area is 2kg / m 2 The quality uniformity is controlled to be less than 5%; each shielding functional layer is fixed by bonding and / or textile connection.

[0029] (2) Make the outer structural layer: Figure 1 The first and fourth layers 1 and 4 of the four-layer textile protective material shown in the figure are the outer structural layers, which are uniformly woven from high-strength, highly ductile, and flexible fiber materials. The fiber materials used in the outer structural layers should not react with the metal material of the shielding layer, affecting the structural strength of the shielding layer and the outer structural layer. The fiber materials used in the outer structural layers should not react with the metal material of the shielding layer, affecting the quality of the outer structural layer and the shielding layer. The fiber materials used in the outer structural layers should also avoid high-strength textile materials that mechanically interact with the two shielding layer materials, resulting in strong static electricity. Furthermore, the fiber materials used in the outer structural layers should be as lightweight as possible. Preferred outer structural layer materials are textile materials made from one or a combination of high-strength and highly flexible aramid fibers, ultra-high molecular weight polyethylene fibers, and polytetrafluoroethylene fibers, with a mass not exceeding 10% of the mass of the shielding layer.

[0030] (3) The outer structural layer wraps and fixes the shielding functional layer by bonding and / or textile connection, and provides a flexible support with high strength and good tensile ductility for the shielding functional layer.

[0031] Example 2

[0032] like Figure 1 and Figure 2 As shown, the present invention provides a four-layer textile protective material for X-rays with a high voltage lower than 150kV and a method for making the same. The layers of the four-layer textile protective material are arranged in the order of X-ray incidence. The X-rays pass through Figure 1 As shown in FIG, the first layer 1 is incident on the fourth layer 4, and the four-layer textile protective material includes two shielding functional layers and two peripheral structural layers. The manufacturing method thereof includes the following steps:

[0033] (1) Making shielding function layer: Figure 1The second layer 2 and the third layer 3 of the four-layer textile protective material shown in the figure are shielding functional layers; wherein, the second layer 2 adopts metal bismuth Bi as the shielding material, that is, metal bismuth Bi is adopted as the first shielding functional layer; the third layer 3 adopts metal tungsten Wu as the shielding material, that is, metal tungsten Wu is adopted as the second shielding functional layer; at the same time, each shielding functional layer adopts a full metal textile uniform structure, the mass ratio of metal bismuth Bi to metal tungsten Wu is 1:1 or close to 1:1, and the mass thickness of the first shielding functional layer and the second shielding functional layer are kept consistent, and the mass control of the shielding functional layer per unit area is 2kg / m 2 The quality uniformity is controlled to be less than 5%; each shielding functional layer is fixed by bonding and / or textile connection.

[0034] (2) Make the outer structural layer: Figure 1 The first and fourth layers 1 and 4 of the four-layer textile protective material shown in the figure are the outer structural layers, which are uniformly woven from high-strength, highly ductile, and flexible fiber materials. The fiber materials used in the outer structural layers should not react with the metal material of the shielding layer, affecting the structural strength of the shielding layer and the outer structural layer. The fiber materials used in the outer structural layers should not react with the metal material of the shielding layer, affecting the quality of the outer structural layer and the shielding layer. The fiber materials used in the outer structural layers should also avoid high-strength textile materials that mechanically interact with the two shielding layer materials, resulting in strong static electricity. Furthermore, the fiber materials used in the outer structural layers should be as lightweight as possible. Preferred outer structural layer materials are high-strength, highly flexible textile materials made from one or a combination of aramid fibers, ultra-high molecular weight polyethylene fibers, and polytetrafluoroethylene fibers, with a mass not exceeding 10% of the mass of the shielding layer.

[0035] (3) The outer structural layer wraps and fixes the shielding functional layer by bonding and / or textile connection, and provides a flexible support with high strength and good tensile ductility for the shielding functional layer.

[0036] The X-ray characteristic spectrum components are diverse and complex. The main energy component of 150kV X-rays is below 100keV. The protective properties of the four-layer textile protective material for X-rays with a high voltage lower than 150kV prepared in Example 1 according to the embodiment of the present invention are as follows: Figure 3 As shown in the Bi / Wu curve, the protective properties of the four-layer textile protective material for X-rays with a protection voltage lower than 150kV prepared according to Example 2 are as follows: Figure 3 As shown in the Wu / Bi curve. Figure 3It can be seen that for X-ray energy of 65 to 110 keV, the X-ray dose attenuation factor K of the four-layer textile protective material with a protection voltage lower than 150 kV prepared in Example 1 is higher than that of the four-layer textile protective material with a protection voltage lower than 150 kV prepared in Example 2.

[0037] The above embodiments are merely illustrative of the present invention. Those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Therefore, the present invention is intended to include such modifications and variations as long as they fall within the scope of the claims and their equivalents.

Claims

1. A multi-layer textile X-ray protective material with a protection voltage lower than 150kV, characterized in that: The multi-layer textile protective material includes two or more shielding functional layers and two or more peripheral structural layers, wherein: The shielding function layer uses metal tungsten Wu and metal bismuth Bi as shielding materials, which are sorted according to the incident direction of the X-rays. The shielding function layer includes at least a first shielding function layer and a second shielding function layer; The outer structural layer adopts fiber material as the outer structural layer material; The peripheral structural layer wraps the fixed shielding functional layer; The multi-layer textile protective material is a four-layer textile protective material, and the layers of the four-layer textile protective material are arranged in the order of X-ray incidence, and the X-rays are incident on the fourth layer through the first layer; wherein, the second layer is the first shielding functional layer, the third layer is the second shielding functional layer, and the first layer and the fourth layer are peripheral structural layers; the first shielding functional layer uses metal tungsten Wu as the shielding material, and the second shielding functional layer uses metal bismuth Bi as the shielding material.

2. The X-ray multilayer textile protective material with a protection voltage lower than 150 kV according to claim 1, characterized in that: The mass ratio of metal tungsten Wu to metal bismuth Bi in the shielding functional layer is 1:

1.

3. The X-ray multilayer textile protective material with a protection voltage lower than 150 kV according to claim 1, characterized in that: There is no reaction between the fiber material of the peripheral structural layer and the shielding material of the shielding functional layer that affects the structural strength of the shielding functional layer and the peripheral structural layer; there is no reaction between the fiber material of the peripheral structural layer and the shielding material of the shielding functional layer that changes the quality of the peripheral structural layer and the shielding functional layer; there is no static electricity generated by mechanical action between the fiber material of the peripheral structural layer and the metal material of the shielding functional layer.

4. A method for producing a multilayer textile X-ray protective material with a high voltage protection lower than 150 kV according to any one of claims 1 to 3, characterized in that: The method comprises the following steps: (1) Manufacturing the shielding functional layer: Each shielding functional layer is made of a uniform structure using all-metal weaving, and each shielding functional layer is fixed by bonding and / or weaving; (2) manufacturing the outer structural layer: using fiber materials to weave the outer structural layer with uniform structure; (3) The shielding functional layer is wrapped, fixed and supported by the peripheral structural layer.

5. The method for producing a multi-layer textile X-ray protective material with a high voltage protection lower than 150 kV according to claim 4, characterized in that: The mass thickness of the first shielding functional layer and the second shielding functional layer prepared in the step (1) are consistent.

6. The method for producing a multi-layer textile X-ray protective material with a high voltage protection lower than 150 kV according to claim 5, characterized in that: The mass per unit area of the shielding functional layer prepared in step (1) is controlled to be 2 kg / m 2 .

7. The method for producing a multi-layer textile X-ray protective material with a high voltage protection lower than 150 kV according to claim 6, characterized in that: In the step (1), the uniformity of the quality of the prepared shielding functional layer is controlled to be less than 5%.

8. The method for producing a multi-layer textile X-ray protective material with a high voltage protection lower than 150 kV according to claim 6, characterized in that: The mass of the peripheral structural layer produced in step (2) does not exceed 10% of the mass of the shielding function layer.

9. The method for producing a multi-layer textile X-ray protective material with a protection voltage lower than 150 kV according to claim 6, characterized in that: In the step (3), the outer structural layer is wrapped and fixed to the shielding functional layer by bonding and / or weaving, and provides flexible support for the shielding functional layer.

Images