CN115162016B - Tin/antimony composite coating and preparation method thereof, tin/antimony composite coated fabric and preparation method and application thereof - Google Patents
Tin/antimony composite coating and preparation method thereof, tin/antimony composite coated fabric and preparation method and application thereof Download PDFInfo
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- CN115162016B CN115162016B CN202210914132.XA CN202210914132A CN115162016B CN 115162016 B CN115162016 B CN 115162016B CN 202210914132 A CN202210914132 A CN 202210914132A CN 115162016 B CN115162016 B CN 115162016B
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- 229910052787 antimony Inorganic materials 0.000 title claims abstract description 139
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 title claims abstract description 139
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 239000011248 coating agent Substances 0.000 title claims abstract description 118
- 238000000576 coating method Methods 0.000 title claims abstract description 118
- 239000002131 composite material Substances 0.000 title claims abstract description 117
- 239000004744 fabric Substances 0.000 title claims abstract description 111
- 238000002360 preparation method Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 19
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 239000006254 rheological additive Substances 0.000 claims description 5
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 238000010345 tape casting Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 30
- 239000000463 material Substances 0.000 description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 239000013530 defoamer Substances 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 238000000518 rheometry Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0068—Polymeric granules, particles or powder, e.g. core-shell particles, microcapsules
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/04—Properties of the materials having electrical or magnetic properties
- D06N2209/048—Electromagnetic interference shielding
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/10—Clothing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of X-ray protective fabrics, and particularly relates to a tin/antimony composite coating and a preparation method thereof, a tin/antimony composite coating fabric and a preparation method and application thereof. The invention provides a tin/antimony composite coating which is prepared from the following raw materials in parts by mass: 30-70 parts of resin, 30-70 parts of antimony powder, 30-70 parts of tin powder, 1-6 parts of dispersing agent, 1-6 parts of defoaming agent, 0-6 parts of flatting agent and 0-6 parts of thickening agent. According to the invention, the tin/antimony composite coating is obtained by mixing resin, antimony powder, tin powder, a dispersing agent, a defoaming agent, a leveling agent and a thickening agent; and uniformly coating the tin/antimony composite coating on the surface of the fabric, and drying to obtain the tin/antimony composite coated fabric. The tin/antimony composite coating fabric provided by the invention takes the tin/antimony composite coating as a raw material, so that the excellent protective performance of the tin/antimony composite coating fabric to X rays is ensured, and meanwhile, the quality of the tin/antimony composite coating fabric is reduced, and the tin/antimony composite coating fabric is more comfortable to wear.
Description
Technical Field
The invention belongs to the technical field of X-ray protective fabrics, and particularly relates to a tin/antimony composite coating and a preparation method thereof, a tin/antimony composite coating fabric and a preparation method and application thereof.
Background
With the development of the atomic energy industry and the increasing widespread use of radioisotopes, it is recognized that X-rays, while benefiting humans, also pose a hazard to human health. For this reason, radiation safety protection is receiving more and more attention, and research and application of X-ray protection material components are also becoming important research directions.
An X-ray protective product is a product that serves to shield X-rays and reduce the dose of radiation received by the human body (somewhere) during radiation and interventional diagnosis to medical workers and subjects. The product mainly comprises materials with the capability of shielding X-rays and other auxiliary materials. The common X-ray protection products in the current market mainly comprise lead protective clothing, lead protective caps, lead protective collars and the like, but the main components of the products are lead, so that the problems of heavy quality and the like of the products are caused, and the products are inconvenient to use.
Disclosure of Invention
The invention aims to provide a tin/antimony composite coating and a preparation method thereof, and a tin/antimony composite coated fabric and a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
The invention provides a tin/antimony composite coating, which comprises the following components in parts by mass: 30-70 parts of resin, 30-70 parts of antimony powder, 30-70 parts of tin powder, 1-6 parts of dispersing agent, 1-6 parts of defoaming agent, 0-6 parts of flatting agent and 0-6 parts of thickening agent.
Preferably, the resin is polyurethane resin, the solid content is 51% -53%, the pH value is 8.0-9.5, and the viscosity is 100-500 mpa.s.
Preferably, the grain size of the tin powder is 10-75 mu m, and the grain size of the antimony powder is 1-50 mu m.
Preferably, the dispersant is an anionic surfactant; the defoaming agent is an organosilicon defoaming agent; the leveling agent is a nonionic association type rheological modifier with the viscosity of less than or equal to 3000 mPa.s at 25 ℃; the thickening agent is an aqueous nonionic association type rheological aid with the solid content of 19-21%.
The invention also provides a preparation method of the tin/antimony composite coating, which comprises the following steps:
and mixing the resin, the antimony powder, the tin powder, the dispersing agent, the defoaming agent, the leveling agent and the thickening agent to obtain the tin/antimony composite coating.
The invention also provides a tin/antimony composite coating fabric, which comprises a fabric and a tin/antimony composite coating attached to the surface of the fabric, wherein the tin/antimony composite coating is prepared from the tin/antimony composite coating according to the scheme or the tin/antimony composite coating obtained by the preparation method according to the scheme.
The invention also provides a preparation method of the tin/antimony composite coated fabric, which comprises the following steps:
And (3) coating the tin/antimony composite coating on the surface of the fabric, and drying to obtain the tin/antimony composite coated fabric.
Preferably, the coating is a knife coating; the thickness of the coated coating is set to be 0.1-1.0 mm, and the coating speed is set to be 1.2-3.0 m/min.
Preferably, the temperature of the drying is 160-180 ℃ and the time is 3-5 min.
The invention also provides an application of the tin/antimony composite coated fabric prepared by the scheme or the preparation method of the scheme in X-ray protection.
The invention provides a preparation method of a tin/antimony composite coating, which has the advantages of simple steps, easily available raw materials, easy operation and low cost.
The invention also provides the tin/antimony composite coating prepared by the preparation method. The tin/antimony composite coating provided by the invention uses the tin powder and the antimony powder as functional particles, and the resin is used as a binder, so that excellent protective performance on X-rays is ensured, and when the X-rays pass through a shielding material, photoelectric effect and Compton scattering are mainly generated between the tin powder and the antimony powder, so that the X-rays are attenuated. Meanwhile, compared with lead, under the condition of similar shielding performance, the antimony powder has smaller harm to human bodies, the antimony powder and tin powder are compounded to greatly reduce the toxicity of the material, and the relative atomic mass of antimony and tin is far smaller than that of lead, so that the mass of the composite material is reduced by about 30%, the material is almost nontoxic, has good weather resistance and mechanical property, has breaking strength of more than 800N (measured according to the standard GB/T3923.1), and has lower cost.
The invention also provides a preparation method of the tin/antimony composite coated fabric. The preparation method provided by the invention has the advantages of less required equipment, simple operation, no pollution to the environment and large-scale industrial production prospect.
The invention also provides the tin/antimony composite coating fabric obtained by the preparation method. The tin/antimony composite coating fabric provided by the invention takes the tin/antimony composite coating as a raw material, so that the excellent protective performance of the tin/antimony composite coating fabric to X rays is ensured, and meanwhile, the quality of the tin/antimony composite coating fabric is reduced, and the tin/antimony composite coating fabric is more comfortable to wear.
Furthermore, the tin/antimony composite coated fabric provided by the invention uses the cotton fabric or the polyester/cotton blended fabric as the base fabric, and the polyester/cotton blended fabric has the advantages of stiff appearance, wear resistance and washing resistance, and prolonged service life of the product.
The invention also provides application of the tin/antimony composite coated fabric in X-ray protection. The tin/antimony composite coating fabric provided by the invention has excellent protective performance on X rays, is convenient to use, has lighter weight, has gram weight of 500-1500 g/m 2, and can be used for more protective scenes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional SEM image of a tin/antimony composite coated fabric prepared according to example 1;
FIG. 2 is a graph showing the X-ray shielding rate of the tin/antimony composite coated fabrics prepared in examples 1 to 5.
Detailed Description
The invention provides a tin/antimony composite coating, which comprises the following components in parts by mass: 30-70 parts of resin, 30-70 parts of antimony powder, 30-70 parts of tin powder, 1-6 parts of dispersing agent, 1-6 parts of defoaming agent, 0-6 parts of flatting agent and 0-6 parts of thickening agent.
The tin/antimony composite coating provided by the invention comprises 30-70 parts of resin by mass; the resin is preferably a polyurethane resin, the polyurethane resin is preferably an aqueous polyurethane resin, and the solid content of the aqueous polyurethane resin is preferably not more than 60%, more preferably 2% -53%; the aqueous polyurethane resin is preferably aqueous polyurethane resin PUE-1401 and is milky white liquid; the solids content is preferably from 51% to 53%, more preferably 52%, the pH is preferably from 8.0 to 9.5, more preferably from 8.0 to 9.0, and the viscosity at 25℃as measured according to GB/T5547-2007 is preferably from 100 to 500 mpa.s, more preferably from 200 to 400 mpa.s.
Based on the mass parts of the resin, the tin/antimony composite coating provided by the invention comprises 30-70 parts of antimony powder, preferably 30-60 parts, more preferably 40-50 parts; the particle diameter of the antimony powder is preferably 1 to 50. Mu.m, more preferably 10 to 40. Mu.m, still more preferably 20 to 30. Mu.m.
Based on the mass parts of the resin, the tin/antimony composite coating provided by the invention comprises 30-70 parts of tin powder, preferably 30-60 parts, more preferably 35-55 parts, and even more preferably 40-50 parts; the particle diameter of the tin powder is preferably 10 to 75. Mu.m, more preferably 20 to 60. Mu.m, and still more preferably 30 to 50. Mu.m.
Based on the mass parts of the resin, the tin/antimony composite coating provided by the invention comprises 1-6 parts of dispersing agent, preferably 2-5 parts, and more preferably 3-4 parts; the dispersant is preferably an anionic surfactant; the anionic surfactant is preferably SN-5040 dispersant, is colorless to pale yellow transparent liquid, and has a pH value of preferably 6.9-7.1, more preferably 7.0.
Based on the mass parts of the resin, the tin/antimony composite coating provided by the invention comprises 1-6 parts of defoamer, preferably 1-5 parts, more preferably 2-4 parts; the defoamer is preferably an organosilicon defoamer, the pH value of the white viscous emulsion is preferably 6-8, more preferably 6.5-7.5, and even more preferably 7.0; the silicone defoamer is preferably an AFE-1410 silicone defoamer.
Based on the mass parts of the resin, the tin/antimony composite coating provided by the invention comprises 0-6 parts of leveling agent, preferably 1-5 parts, and more preferably 2-3 parts; the leveling agent is preferably a nonionic association type rheology modifier with the viscosity of less than or equal to 3000 mPa.s at 25 ℃ and is a slightly turbid milky or semitransparent liquid, and more preferably a nonionic association type rheology modifier with the viscosity of less than or equal to 2000 mPa.s at 25 ℃; the nonionic associative rheology modifier preferably comprises one or more of RM2020 and PM-THICKENER N.
Based on the mass parts of the resin, the tin/antimony composite coating provided by the invention comprises 0-6 parts of thickener, preferably 0-5 parts, and more preferably 1-4 parts; the thickener is preferably an aqueous nonionic associative rheology aid with a solids content of 19-21%, more preferably an aqueous nonionic associative rheology aid with a solids content of 20%; the aqueous nonionic associative rheology assistant preferably comprises one or more of an RM-8W thickener and DeuRheo WT-105A assistant.
The invention also provides a preparation method of the tin/antimony composite coating, which comprises the following steps:
and mixing the resin, the antimony powder, the tin powder, the dispersing agent, the defoaming agent, the leveling agent and the thickening agent to obtain the tin/antimony composite coating.
The method comprises the steps of preferably stirring resin for the first time, sequentially adding dispersing agent, partial defoaming agent, antimony powder and tin powder into the resin while keeping a stirring state, uniformly stirring, and then adding the rest of defoaming agent, leveling agent and thickening agent for the second time; the speed of the first stirring is preferably 800-1000 r/min, more preferably 850-950 r/min, and the time is preferably 5-10 min, more preferably 6-8 min; the speed of the second stirring is preferably 1200-1500 r/min, more preferably 1300-1400 r/min, and the time is preferably 15-20 min, more preferably 16-18 min; the volume ratio of the partial antifoaming agent to the residual antifoaming agent is preferably 1 to 3:1 to 3, more preferably 1:1.
The invention also provides a tin/antimony composite coating fabric, which comprises a fabric and a tin/antimony composite coating attached to the surface of the fabric, wherein the tin/antimony composite coating is prepared from the tin/antimony composite coating according to the scheme or the tin/antimony composite coating obtained by the preparation method according to the scheme.
In the present invention, the fabric is preferably a cotton fabric or a polyester/cotton blend fabric; the length of the fabric is preferably 40-120 cm, more preferably 100-120 cm, and the width is preferably 25-80 cm, more preferably 50-80 cm; the thickness ratio of the fabric to the tin/antimony composite coating is preferably 2-3:1-10, more preferably 2.5-3:5-8.
The invention also provides a preparation method of the tin/antimony composite coated fabric, which comprises the following steps:
And (3) coating the tin/antimony composite coating on the surface of the fabric, and drying to obtain the tin/antimony composite coated fabric.
In the present invention, the coating is preferably a blade coating; the invention preferably fixes the fabric as the base cloth on the needle board frame of the coating machine, then sets the thickness and the speed of the coating, and uniformly coats the coating on the surface of the fabric; the thickness of the set coating is preferably 0.1-1.0 mm, more preferably 0.3-0.7 mm; the coating speed is preferably 1.2 to 3.0m/min, more preferably 1.5 to 2.5m/min; the drying temperature is preferably 160-180 ℃, more preferably 165-175 ℃, and the drying time is preferably 3-5 min, more preferably 4min; the drying is preferably drying, the drying device is preferably an oven, and the thickness of the coating obtained after drying is 0.08-0.6 mm.
The invention also provides an application of the tin/antimony composite coated fabric prepared by the scheme or the preparation method of the scheme in X-ray protection.
In the present invention, the application preferably includes: and cutting and sewing the tin/antimony composite coating fabric in sequence to obtain an X-ray protection product.
Unless specifically stated otherwise, the technical means not described in the present invention may be implemented in a manner well known to those skilled in the art.
The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings and examples to further illustrate the invention, but should not be construed as limiting the scope of the invention.
Example 1
A preparation method of a tin/antimony composite coated fabric comprises the following steps:
Preparation of tin/antimony composite coating:
setting the stirring speed of a sample dispersing machine to be 800r/min, stirring 144g of aqueous polyurethane resin PUE-1401, and sequentially adding 3mL of SN-5040 dispersing agent, 1.5mL of AFE-1410 organic silicon defoaming agent, 75g of tin powder and 75g of antimony powder into the aqueous polyurethane resin PUE-1401 in the stirring process to uniformly disperse the materials; and then adding 1.5mLAFE-1410 organic silicon defoamer into the obtained mixture, adding 1.5mL leveling agent RM2020, setting the stirring speed of a small sample dispersing machine to 1500r/min, and stirring for 20min to obtain the tin/antimony composite coating.
Preparation of tin/antimony composite coated fabric:
(1) Selecting a fabric with the length of 40 multiplied by 25cm as a base fabric and fixing the base fabric on a needle board frame of a coating machine;
(2) Setting the thickness of the coating to be 0.89mm, setting the coating speed to be 2m/min, and uniformly coating the coating on the surface of the fabric;
(3) And (3) placing the coated fabric in an oven, and setting the temperature of the oven to be 180 ℃ and drying for 3min to obtain the tin/antimony composite coated fabric.
Example 2
A preparation method of a tin/antimony composite coated fabric comprises the following steps:
Preparation of tin/antimony composite coating:
Setting the stirring speed of a sample dispersing machine to be 800r/min, stirring 144g of aqueous polyurethane resin PUE-1401, and sequentially adding 3mL of SN-5040 dispersing agent, 1.5mL of AFE-1410 organic silicon defoaming agent, 90g of tin powder and 60g of antimony powder into the aqueous polyurethane resin PUE-1401 in the stirring process to uniformly disperse the materials; adding 1.5mLAFE-1410 organic silicon defoamer, 1.5mL leveling agent RM2020 and 3mL RM-8W thickener according to the thick state of the mixture; setting the stirring speed of the sample dispersing machine to 1500r/min and stirring for 20min to obtain the tin/antimony composite coating.
Preparation of tin/antimony composite coated fabric:
(1) Selecting a fabric with the length of 40 multiplied by 25cm as a base fabric and fixing the base fabric on a needle board frame of a coating machine;
(2) Setting the thickness of the coating to be 0.89mm, setting the coating speed to be 2m/min, and uniformly coating the coating on the surface of the fabric;
(3) And (3) placing the coated fabric in an oven, and setting the temperature of the oven to be 180 ℃ and drying for 3min to obtain the tin/antimony composite coated fabric.
Example 3
A preparation method of a tin/antimony composite coated fabric comprises the following steps:
Preparation of tin/antimony composite coating:
setting the stirring speed of a sample dispersing machine to be 800r/min, stirring 144g of aqueous polyurethane resin PUE-1401, and sequentially adding 3mL of SN-5040 dispersing agent, 1.5mL of AFE-1410 organic silicon defoaming agent, 45g of tin powder and 105g of antimony powder into the aqueous polyurethane resin PUE-1401 in the stirring process to uniformly disperse the materials; adding 1.5mLAFE-1410 organic silicon defoamer, 1.5mL leveling agent RM2020 and 3mL RM-8W thickener according to the thick state of the mixture; setting the stirring speed of the sample dispersing machine to 1500r/min and stirring for 20min to obtain the tin/antimony composite coating.
Preparation of tin/antimony composite coated fabric:
(1) Selecting a fabric with the length of 40 multiplied by 25cm as a base fabric and fixing the base fabric on a needle board frame of a coating machine;
(2) Setting the thickness of the coating to be 0.89mm, setting the coating speed to be 2m/min, and uniformly coating the coating on the surface of the fabric;
(3) And (3) placing the coated fabric in an oven, and setting the temperature of the oven to be 180 ℃ and drying for 3min to obtain the tin/antimony composite coated fabric.
Example 4
A preparation method of a tin/antimony composite coated fabric comprises the following steps:
Preparation of tin/antimony composite coating:
Setting the stirring speed of a sample dispersing machine to be 800r/min, stirring 144g of aqueous polyurethane resin PUE-1401, and sequentially adding 3mL of SN-5040 dispersing agent, 1.5mL of AFE-1410 organic silicon defoaming agent, 60g of tin powder and 90g of antimony powder into the aqueous polyurethane resin PUE-1401 in the stirring process to uniformly disperse the materials; adding 1.5mLAFE-1410 organic silicon defoamer, 1.5mL leveling agent RM2020 and 3mL RM-8W thickener according to the thick state of the mixture; setting the stirring speed of the sample dispersing machine to 1500r/min and stirring for 20min to obtain the tin/antimony composite coating.
Preparation of tin/antimony composite coated fabric:
(1) Selecting a fabric with the length of 40 multiplied by 25cm as a base fabric and fixing the base fabric on a needle board frame of a coating machine;
(2) Setting the thickness of the coating to be 0.89mm, setting the coating speed to be 2m/min, and uniformly coating the coating on the surface of the fabric;
(3) And (3) placing the coated fabric in an oven, and setting the temperature of the oven to be 180 ℃ and drying for 3min to obtain the tin/antimony composite coated fabric.
Example 5
A preparation method of a tin/antimony composite coated fabric comprises the following steps:
Preparation of tin/antimony composite coating:
Setting the stirring speed of a sample dispersing machine to be 800r/min, stirring 144g of aqueous polyurethane resin PUE-1401, and sequentially adding 3mL of SN-5040 dispersing agent, 1.5mL of AFE-1410 organic silicon defoaming agent, 105g of tin powder and 45g of antimony powder into the aqueous polyurethane resin PUE-1401 in the stirring process to uniformly disperse the materials; adding 1.5mLAFE-1410 organic silicon defoamer, 1.5mL leveling agent RM2020 and 3mL RM-8W thickener according to the thick state of the mixture; setting the stirring speed of the sample dispersing machine to 1500r/min and stirring for 20min to obtain the tin/antimony composite coating.
Preparation of tin/antimony composite coated fabric:
(1) Selecting a fabric with the length of 40 multiplied by 25cm as a base fabric and fixing the base fabric on a needle board frame of a coating machine;
(2) Setting the thickness of the coating to be 0.89mm, setting the coating speed to be 2m/min, and uniformly coating the coating on the surface of the fabric;
(3) And (3) placing the coated fabric in an oven, and setting the temperature of the oven to be 180 ℃ and drying for 3min to obtain the tin/antimony composite coated fabric.
SEM analysis was performed on the cross section of the tin/antimony composite coated fabric prepared in example 1 using a scanning electron microscope, and the results are shown in fig. 1. As can be seen from FIG. 1, the tin/antimony composite coating fabric prepared by the method has uniform components, complete structure and no obvious structural defects, and the fabric and the coating are tightly combined.
The scanning electron microscopes of examples 2 to 5 are similar to those of examples 1 and 2.
The X-ray shielding effect of the tin/antimony composite coated fabrics obtained in examples 1 to 5 was tested, and the test standard was GBZ-T147-2002X, the test of the attenuation properties of the radiation protective materials, and the results are shown in FIG. 2. As can be seen from fig. 2, the X-ray shielding rate of the tin/antimony composite coated fabric prepared in example 1 (Sb: sn=5:5) can reach 30.22%, the X-ray shielding rate of the tin/antimony composite coated fabric prepared in example 2 (Sb: sn=4:6) can reach 30.86%, the X-ray shielding rate of the tin/antimony composite coated fabric prepared in example 3 (Sb: sn=7:3) can reach 29.26%, the X-ray shielding rate of the tin/antimony composite coated fabric prepared in example 4 (Sb: sn=6:4) can reach 29.58%, and the X-ray shielding rate of the tin/antimony composite coated fabric prepared in example 5 (Sb: sn=3:7) can reach 30.37%. It can be seen that when Sb: sn=4:6, the X-ray shielding rate of the prepared tin/antimony composite coating fabric reaches a higher level, and the X-ray shielding rate of the tin/antimony composite coating fabric of the present invention is all above 29.2%.
According to the embodiment, the X-ray shielding rate of the tin/antimony composite coating fabric provided by the invention is not lower than 29.2%, can reach 30.86%, has excellent protective performance on X-rays, reduces the quality of the material by about 30% compared with a lead product, is almost nontoxic, has good tolerance and mechanical properties, is low in cost, is more comfortable to wear and is more durable and washable, and can be used for more protective scenes.
Although the foregoing embodiments have been described in some, but not all embodiments of the invention, other embodiments may be obtained according to the present embodiments without departing from the scope of the invention.
Claims (7)
1. The tin/antimony composite coating comprises the following components in parts by mass: 30-70 parts of resin, 30-50 parts of antimony powder, 30-60 parts of tin powder, 1-6 parts of dispersing agent, 1-6 parts of defoaming agent, 0-6 parts of flatting agent and 0-6 parts of thickening agent;
The grain diameter of the tin powder is 10-75 mu m, and the grain diameter of the antimony powder is 1-50 mu m;
the dispersing agent is an anionic surfactant;
The defoaming agent is an organosilicon defoaming agent;
the leveling agent is a nonionic association type rheological modifier with the viscosity of less than or equal to 3000 mPa.s at 25 ℃;
the thickening agent is an aqueous nonionic association type rheological aid with the solid content of 19-21%;
the resin is polyurethane resin, the solid content is 51% -53%, the pH value is 8.0-9.5, and the viscosity is 100-500 mpa.s.
2. The method for preparing the tin/antimony composite coating according to claim 1, comprising the steps of:
and mixing the resin, the antimony powder, the tin powder, the dispersing agent, the defoaming agent, the leveling agent and the thickening agent to obtain the tin/antimony composite coating.
3. A tin/antimony composite coated fabric, comprising a fabric and a tin/antimony composite coating attached to the surface of the fabric, wherein the tin/antimony composite coating is prepared from the tin/antimony composite coating according to claim 1 or the tin/antimony composite coating obtained by the preparation method according to claim 2.
4. A method of making a tin/antimony composite coated fabric according to claim 3, comprising the steps of:
And (3) coating the tin/antimony composite coating on the surface of the fabric, and drying to obtain the tin/antimony composite coated fabric.
5. The method according to claim 4, wherein the coating is a knife coating, the thickness of the coated coating is set to 0.1-1.0 mm, and the coating speed is set to 1.2-3.0 m/min.
6. The method according to claim 4, wherein the temperature of the drying is 160-180℃and the time is 3-5 min.
7. Use of the tin/antimony composite coated fabric according to claim 3 or the tin/antimony composite coated fabric obtained according to any one of claims 4 to 6 in X-ray protection.
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