CN115651514A - Infrared and laser compatible stealth coating with self-repairing function and good mechanical property - Google Patents
Infrared and laser compatible stealth coating with self-repairing function and good mechanical property Download PDFInfo
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Abstract
The invention relates to the technical field of stealth materials, in particular to an infrared and laser compatible stealth coating with a self-repairing function and good mechanical properties. The coating comprises: a filler and a binder, the filler being Sn 0.84 Sb 0.08 Sm 0.08 O 2 The filler is of a hollow porous micro-nano fiber structure and has a better structureThe infrared and laser invisible mask has large specific surface area and light weight, and simultaneously has good infrared and laser compatible invisible performance, and the requirement of multiband invisible can be met only by coating one layer; in addition, the adhesive of the coating is polyurethane with dynamic disulfide bonds, has good self-repairing property and mechanical property, and accords with the development trend of the stealth material in the future.
Description
Technical Field
The invention relates to the technical field of stealth materials, in particular to an infrared and laser compatible stealth coating with a self-repairing function and good mechanical properties.
Background
Under the background of modern high-technology war, the single-waveband stealth material is difficult to meet the practical application requirements, and the research of multiband compatible stealth materials becomes necessary, while the laser and infrared compatible stealth materials are one of the key points of the current research of the multiband compatible stealth materials. At present, common multi-spectrum compatible stealth materials are mostly presented in a coating form, and a multi-layer coating mode is mostly adopted to meet the requirement of multi-band stealth, however, the problem of high coating thickness is faced, so that the research of a single infrared and laser compatible stealth coating is of great significance. Meanwhile, the coating is inevitably affected by external force in practical application, and has the problems of cracking, breakage and the like, and certain requirements are provided for the material multifunctionality, particularly the mechanical and repair properties.
Disclosure of Invention
The invention aims to provide an infrared and laser compatible stealth coating with a self-repairing function and good mechanical properties, which has a larger specific surface area and lighter weight, and simultaneously has good infrared and laser compatible stealth properties, and the requirement of multiband stealth can be met by only one coating; in addition, the coating has good self-repairing property and mechanical property, and accords with the development trend of the stealth material in the future.
The invention provides a red with self-repairing function and good mechanical property for realizing the first purposeA laser compatible stealth coating comprising: fillers and binders; the filler is Sn 0.84 Sb 0.08 Sm 0.08 O 2 The binder is polyurethane with dynamic disulfide bonds.
Preferably, said Sn 0.84 Sb 0.08 Sm 0.08 O 2 : the mass ratio of the polyurethane with dynamic disulfide bonds is 1: (10-50); more preferably, said Sn 0.84 Sb 0.08 Sm 0.08 O 2 : the mass ratio of the polyurethane with dynamic disulfide bonds is 1:20.
the second purpose of the invention is to provide the preparation method of the infrared and laser compatible stealth coating with the self-repairing function and good mechanical property, the coating prepared by the method has larger specific surface area and lighter weight, and simultaneously has good infrared and laser compatible stealth property, and the requirement of multiband stealth can be met by only one layer of coating; in addition, the coating has good self-repairing property and mechanical property, and accords with the development trend of the stealth material in the future.
In order to achieve the second purpose, the invention provides a preparation method of the infrared and laser compatible stealth coating with the self-repairing function and good mechanical property, which is characterized by comprising the following steps:
s1, preparing a filling material Sn 0.84 Sb 0.08 Sm 0.08 O 2 ；
S2, preparing polyurethane of a dynamic disulfide bond of the binder;
s3, preparing the Sn 0.84 Sb 0.08 Sm 0.08 O 2 Adding into polyurethane with dynamic disulfide bond, mixing and stirring to obtain the coating.
Preferably, step S1 includes the steps of:
s11, adding SnCl 2 ·2H 2 O、Sm(NO 3 ) 3 ·6H 2 O、SbCl 3 Dissolving in absolute ethyl alcohol, mixing and stirring with polyvinylpyrrolidone and N, N-dimethylformamide solution to obtain a shell layer solution;
s12, mixing and stirring polyvinylpyrrolidone, N-dimethylformamide and absolute ethyl alcohol to prepare a core layer solution;
and S13, putting the shell solution prepared in the step S11 into an outer container of a coaxial electrostatic spinning device, putting the core layer solution prepared in the step S12 into the inner container of the coaxial electrostatic spinning device, and preparing the precursor micro-nano fibers through the coaxial electrostatic spinning device.
S14, drying, calcining and cooling the precursor micro-nanofiber prepared in the step S13 to room temperature to prepare Sn 0.84 Sb 0.08 Sm 0.08 O 2 。
Preferably, the SnCl in the step S11 2 ·2H 2 O：Sm(NO 3 ) 3 ·6H 2 O：SbCl 3 Is 0.84:0.08:0.08.
preferably, step S2 includes the steps of: hydroxyl-terminated polybutadiene, isophorone diisocyanate and bis (2-hydroxyethyl) disulfide are mixed and stirred to prepare the polyurethane with dynamic disulfide bonds.
Preferably, step S2 includes the steps of:
s21, putting hydroxyl-terminated polybutadiene into a beaker, and preheating and stirring at the temperature of 60-80 ℃;
s22, adding isophorone diisocyanate into a beaker, and continuously stirring for 1h at the temperature of 60-80 ℃;
s23, adding bis (2-hydroxyethyl) disulfide into a beaker, and continuously stirring for 1h at the temperature of 60-80 ℃ to prepare the polyurethane with the dynamic disulfide bond.
Preferably, the temperature of the reaction conditions is 70 ℃.
Preferably, the hydroxyl-terminated polybutadiene: isophorone diisocyanate: the mass ratio of bis (2-hydroxyethyl) disulfide is 3:1:0.52.
preferably, the chemical reaction formula of the preparation method is as follows:
preferably, step S3 includes the steps of: prepared Sn 0.84 Sb 0.08 Sm 0.08 O 2 Adding the mixture into polyurethane with dynamic disulfide bonds, mixing and stirring for 2 hours, and then carrying out ultrasonic dispersion for 0.5 hour to obtain the coating.
Has the beneficial effects that:
according to the technical scheme, the infrared and laser compatible stealth coating with the self-repairing function and the good mechanical property is prepared through the filler and the binder, and the filler of the coating is Sn with a hollow porous micro-nano fiber structure 0.84 Sb 0.08 Sm 0.08 O 2 The filler is of a hollow porous micro-nano fiber structure, has a large specific surface area and light weight, has good infrared and laser compatible stealth performance, and can meet the requirement of multiband stealth only by coating one layer; in addition, the adhesive of the coating is polyurethane with dynamic disulfide bonds, has good self-repairing property and mechanical property, and accords with the development trend of the stealth material in the future.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the chemical reaction for preparing HPU in the second embodiment of the present invention;
FIG. 2a is an infrared spectrum of a tetraphase analyzed HPU of an embodiment of the present invention, and FIG. 2b is an XRD spectrum of the HPU and the coating;
FIG. 3a is an SEM picture of a four-microstructure analyzed PU of an embodiment of the invention, FIG. 3b is an SEM picture of an HPU, FIG. 3c is an SEM picture of a coating, and FIG. 3d is an EDS element distribution picture of the coating;
FIG. 4 is an EDS profile of elements in a four-microtopography analysis coating in accordance with an embodiment of the present invention;
FIG. 5a is a stress-strain curve diagram of four mechanical property analyses of PU, HPU and coating in the embodiment of the invention, and FIG. 5b is a tensile strength and fracture strain diagram of PU, HPU and coating;
FIG. 6a is a stress-strain curve of four mechanical property analysis coatings cyclic stretching according to the embodiment of the invention, and FIG. 6b is a graph of the change of the tensile strength and the stress recovery degree of the coating cyclic stretching;
FIG. 7a is a stress-strain curve before and after the self-repairing of the coating analyzed for the four self-repairing performance of the embodiment of the invention, and FIG. 7b is the tensile strength and the breaking strain before and after the self-repairing of the coating;
FIG. 8a is a picture before and after the self-repair of the coating according to the embodiment of the present invention, and FIG. 8b is a tensile picture after the self-repair of the coating;
FIG. 9 is a schematic diagram of a self-repair mechanism for analyzing the four self-repair performance of an embodiment of the present invention;
FIG. 10 is a graph of IR emissivity versus thermal image analysis of PU, HPU and coating for a four IR emissivity embodiment of the invention;
FIG. 11 is a graph of infrared thermal images of a four-IR emission and thermal imaging analysis HPU (left side wafer) and coating (right side wafer) at different temperatures for an embodiment of the present invention;
FIG. 12 is a graph of the reflectivity at 500-2000nm for PU, HPU and coatings for four laser reflectivity analysis of an embodiment of the invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms also include the plural forms unless the context clearly dictates otherwise, and further, it is understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.
For the sake of brevity, only some numerical ranges are explicitly disclosed herein. However, any lower limit may be combined with any upper limit to form ranges not explicitly recited; and any lower limit may be combined with any other lower limit to form a range not explicitly recited, and similarly any upper limit may be combined with any other upper limit to form a range not explicitly recited. Also, although not explicitly recited, each point or individual numerical value between the endpoints of a range is encompassed within that range. Thus, each point or individual value may, as its lower or upper limit, be combined with any other point or individual value or with other lower or upper limits to form ranges not explicitly recited.
The embodiment provides a preparation method of an infrared and laser compatible stealth coating with a self-repairing function and good mechanical properties, which comprises the following steps: preparation of the Filler Sn 0.84 Sb 0.08 Sm 0.08 O 2 (ii) a Preparing polyurethane of dynamic disulfide bonds of the binder; prepared Sn 0.84 Sb 0.08 Sm 0.08 O 2 Adding into polyurethane with dynamic disulfide bond, mixing and stirring to obtain the coating.
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
EXAMPLE preparation of the Filler
With SnCl 2 ·2H 2 O、Sm(NO 3 ) 3 ·6H 2 O、SbCl 3 As raw materials, according to the weight ratio of 0.84:0.08: an appropriate amount of the raw materials was weighed at a molar ratio of 0.08 and dissolved in absolute ethanol, and the solution was mixed with a solution of PVP and N, N-Dimethylformamide (DMF) and magnetically stirred for 12 hours to prepare a shell solution (the mass ratio of the two solutions was 1. PVP was dissolved in a mixed solvent of DMF and absolute ethanol and magnetically stirred for 12 hours to prepare a core layer solution (mass ratio of solute to solvent was 1. The shell solution is placed in the outer container of the coaxial electrospinning apparatus and the core solution is placed in the inner container of the coaxial electrospinning apparatus. Coaxial electrostatic spinningThe conditions of the filaments were: the voltage is 18KV, the outer diameter and the inner diameter of the coaxial stainless steel needle are respectively 17G and 22G, the flow rate of the shell core solution is 0.05ml/h, the distance between the needle head and the receiver is 20cm, and the receiving speed is 140r/min. The prepared precursor micro-nano fiber is firstly placed in a vacuum drying oven to be dried for 12 hours at the temperature of 100 ℃, then is placed in an intelligent temperature control box type resistance furnace, is heated to 600 ℃ at the speed of 1 ℃/min to be calcined for 2 hours, and is cooled to room temperature along with the furnace to prepare the filling Sn 0.84 Sm 0.08 Sb 0.08 O 2 。
EXAMPLE two preparation of Binders
Preparation of polyurethane with dynamic disulfide bond (HPU): hydroxyl-terminated polybutadiene (HTPB) with the-OH content of 0.75 mmol/g), isophorone diisocyanate (IPDI) and bis (2-hydroxyethyl) disulfide (HEDS) are taken as main raw materials. The raw materials comprise the following components in percentage by mass: HTPB was 3g, IPDI was 1g, HEDS was 0.52g. The preparation process comprises the following steps: firstly, putting the mass of HTPB into a 100ml beaker, preheating and stirring at 70 ℃, then adding the mass of IPDI into the HTPB, continuing to stir at 70 ℃ for 1h, then slowly adding the mass of HEDS into the mixed solution, and continuing to stir at 70 ℃ for 1h to prepare the binder HPU, wherein the chemical reaction principle diagram is shown in figure 1.
Preparation of Polyurethane (PU): hydroxyl-terminated polybutadiene (HTPB) with the-OH content of 0.75mmol/g and isophorone diisocyanate (IPDI) are taken as main raw materials. The raw materials comprise the following components in percentage by mass: HTPB was 3g, IPDI) was 3g. The preparation process comprises the following steps: firstly, putting the HTPB with the mass into a 100ml beaker, preheating and stirring at 70 ℃, then adding the IPDI with the mass into the HTPB, and continuously stirring for 2h at 70 ℃ to prepare the adhesive PU.
EXAMPLE preparation of the third coating
The prepared filling material Sn 0.84 Sm 0.08 Sb 0.08 O 2 Added to the binder HPU, sn 0.84 Sb 0.08 Sm 0.08 O 2 The mass ratio to HPU is 1:20, fully stirring for 2 hours, and then carrying out ultrasonic dispersion for 0.5 hour to obtain the coating.
Example four results and analysis
The phase of the sample was analyzed by an XD6 polycrystalline X-ray diffractometer (XRD) from Beijing Putan. Infrared spectroscopy of the samples was performed using a Fourier transform infrared spectrometer (FI-IR) model 380 from Nicolet, USA. The microstructure of the sample was observed by using a SU-8010 Field Emission Scanning Electron Microscope (FESEM) of Hitachi, japan. The infrared emissivity of the sample is tested by adopting an IR-2 dual-waveband infrared emissivity tester of China Chengbo corporation. The infrared thermography of the sample was taken using a model 120S infrared thermograph from UTi corporation of china. The diffuse reflectance of the product was measured using a UV-3600 spectrophotometer from Shimadzu, japan and an ISR-603 integrating sphere. The mechanical properties of the samples were tested using a model 5982 universal tester from INSTRON USA (tensile rate 50mm/min, sample type 12 mm. Times.2 mm. Times.1 mm).
(I) phase analysis
FIG. 2a is an infrared spectrum of the binder (HPU), as seen in FIG. 2a, at 3323cm -1 Has an absorption peak which is an expansion vibration absorption peak of-NH-, and is not seen in 2200-2 300cm -1 There is an absorption peak between them, which indicates that-NCO groups in the system have been completely reacted and disulfide bonds have been completely incorporated into the polyurethane. Samples were at 1700cm-1 and 1540cm -1 Is caused by the flexural vibration of C = O stretching vibration-NH-, respectively. Fig. 2b shows XRD patterns of the binder (HPU) and the coating, from fig. 2b it can be seen that both the binder and the coating show broad dispersion peaks around 2 θ =20 °, indicating that the binder is amorphous, while the coating shows diffraction peaks at 2 θ =27 °, 34 °, 52 °, corresponding to the (110), (101), (211) crystal planes of the filler, respectively, which is consistent with JCPDS 41-1445.
(II) microscopic morphology analysis
Fig. 3a, 3b, and 3c are SEM pictures of PU, HPU, and coating, respectively, and it can be seen from fig. 3a and 3b that the resin layer is relatively thick and uniformly distributed. As can be seen from fig. 3c, after the filler is added, the thickness of the resin layer becomes thin, the micro-nano tubular filler appears on the surface of the coating, and the filler is randomly distributed on the surface of the coating. To further describe the distribution of the filler in the coating, EDS surface scan analysis was performed on the surface of the coating and the results are shown in fig. 3 d. As can be seen from FIG. 3d, the distribution of the elements (Sn, sb, sm, O) on the surface of the coating is uniform, and the distribution of the elements is shown in FIG. 4. The uniform distribution of the filler is beneficial to the coating to have the characteristics of strong reflection of infrared light and low emission.
(III) analysis of mechanical Properties
Fig. 5a and 5b are stress-strain curves and tensile strength-strain at break plots of PU, HPU and coating, respectively. As can be seen from FIG. 5, HPU has stronger plasticity than PU, elongation increases from 658% to 765%, but strength decreases, and tensile strength decreases from 0.521MPa to 0.299MPa. When the filler was added, the plasticity of the coating was reduced compared to the binder (HPU), with a 710% reduction in elongation, but the strength was increased to 0.467Mpa. Therefore, the tensile strength of the composite material is improved to a certain extent by adding the micro-nano filler. The small size effect and the dispersion uniformity of the inorganic micro-nano filler are beneficial to improving the mechanical property of the polyurethane material. In order to further characterize the mechanical properties, the deformation recovery capability of the coating is analyzed, and a cyclic stretching mode is mainly adopted. The degree of stress recovery defined in this study is the ratio of the cyclic tensile stress to the tensile stress at the first cycle. The pause time for cyclic stretching was 2min, and it can be seen from fig. 6a that each cycle can be restored to almost the same level as the previous cycle. Fig. 6b shows the variation trend of the tensile strength and the stress recovery degree of each cycle, and as can be seen from fig. 6b, the stress recovery degree is above 99%, indicating that the coating has stronger deformation recovery capability.
(IV) self repair Performance analysis
Fig. 7a and b are respectively a stress-strain curve before and after self-repair of the coating and tensile strength and breaking strain before and after self-repair of the coating, and it can be seen from fig. 7 that the tensile strength before and after repair of the coating is respectively 0.467Mpa and 0.355Mpa, the elongation before and after repair of the coating is 710% and 342%, the self-repair efficiency of the work is defined as a ratio of the elongation before and after self-repair, and the self-repair efficiency of the coating is 48.17%. Fig. 8a is a picture before and after the self-repairing of the coating, fig. 8b is a drawing state diagram of the coating after the self-repairing, and as can be seen from fig. 8, the fracture joint is a stress weak point during the drawing, and the fracture is easy to occur. The coating has self-repairing performance mainly due to the self-repairing performance of the HPU of the binder, the self-repairing performance of the HPU is realized by carrying out chemical bond recombination with a sulfur atom between adjacent disulfide bonds in HEDS, the disulfide bonds are firstly decomposed into sulfur free radicals, and then the disulfide bonds are recombined through sulfur free radical transfer reaction, so that the coating has the self-repairing performance.
(V) analysis of infrared emissivity and thermography
FIG. 10 is a graph showing the IR emissivity change of PU, HPU and the coating, and it can be seen from FIG. 10 that there is no significant change in the IR emissivity of PU and HPU at 3-5 μm and 8-14 μm, which indicates that the addition of HEDS has no significant effect on the regulation of IR emissivity. The emissivity of the coating drops significantly after the addition of the filler, which is 0.568 and 0.687 at 3-5 μm and 8-14 μm. The reduction of the infrared emissivity of the coating is closely related to the uniform distribution of the filler in the coating. To further characterize the infrared stealth performance, the coatings were analyzed by infrared thermography, the results of which are shown in fig. 11. As can be seen from FIG. 11, the addition of the filler has a significant effect on improving the infrared stealth performance of the coating, and the infrared radiation amount of the coating at 40 ℃, 50 ℃ and 60 ℃ is significantly lower than that of the binder without the filler, which indicates that the coating has a certain infrared stealth practical application value.
(VI) laser reflectance analysis
FIG. 12 shows the reflectivities of PU, HPU and the coating at 500-2000nm, and it can be seen from FIG. 12 that PU and HPU have higher reflectivities at 500-2000nm and generate certain reflection peaks due to the action of internal organic groups. After the addition of the filler, the reflectance of the coating at 500-2000nm was significantly reduced, with only 1.26% and 1.12% at 1.06 μm and 1.55 μm, respectively. The main reason for the reduction of the laser reflectivity of the coating is that the micro-nano filler in the coating has a larger specific surface area, so that the interface polarization effect can be effectively strengthened, and the reflectivity of the coating is reduced.
(VII) conclusion
The invention adopts a hollow porous micro-nano fiber structure Sn 0.84 Sb 0.08 Sm 0.08 O 2 As filler, polyurethane (HPU) with dynamic disulfide bond is used as adhesiveAnd (5) preparing a coating by using the binder. The coating has good mechanical property, the length of the coating is 710 percent, and the tensile strength is 0.467Mpa; and the alloy has good deformation recovery capability, and the stress recovery degree is more than 99%. The good mechanical property and deformation recovery capability are mainly due to the small size effect of the inorganic micro-nano filler and the uniformity of dispersion of the inorganic micro-nano filler, so that the mechanical property of the polyurethane material is improved. Based on the self-repairing effect of disulfide bonds in the binder, the coating has good self-repairing performance, and the self-repairing efficiency is 48.17%. After the filler is added, the emissivity of the coating is remarkably reduced, and the emissivity of the coating is 0.568 and 0.687 at 3-5 mu m and 8-14 mu m, and the coating has good infrared stealth performance; meanwhile, the reflectivity of the laser beam at 500-2000nm is also obviously reduced, the reflectivity at 1.06 mu m and 1.54 mu m is only 1.26 percent and 1.12 percent respectively, and the laser beam has excellent laser stealth performance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An infrared and laser compatible stealth coating with self-repair function and good mechanical properties, characterized in that comprises: fillers and binders; the filler is Sn 0.84 Sb 0.08 Sm 0.08 O 2 The binder is polyurethane with dynamic disulfide bonds.
2. The infrared and laser compatible stealth coating with self-healing capabilities and good mechanical properties of claim 1, wherein the Sn is present in the coating 0.84 Sb 0.08 Sm 0.08 O 2 : the mass ratio of the polyurethane with dynamic disulfide bonds is 1: (10-50).
3. The infrared and laser compatible stealth coating with self-healing capabilities and good mechanical properties according to claim 2, characterized in that said Sn is present in a coating solution 0.84 Sb 0.08 Sm 0.08 O 2 : the mass ratio of the polyurethane with dynamic disulfide bonds is 1:20.
4. the preparation method of the infrared and laser compatible stealth coating with the self-repairing function and the good mechanical property as claimed in any one of claims 1 to 3, characterized by comprising the following steps:
s1, preparing filling Sn 0.84 Sb 0.08 Sm 0.08 O 2 ；
S2, preparing polyurethane of the dynamic disulfide bond of the binder;
s3, preparing the Sn 0.84 Sb 0.08 Sm 0.08 O 2 Adding the polyurethane with dynamic disulfide bonds, and mixing and stirring to obtain the coating.
5. The method according to claim 4, wherein step S1 comprises the steps of:
s11, adding SnCl 2 ·2H 2 O、Sm(NO 3 ) 3 ·6H 2 O、SbCl 3 Dissolving in absolute ethyl alcohol, and mixing and stirring with polyvinylpyrrolidone and N, N-dimethylformamide solution to obtain shell solution;
s12, mixing and stirring polyvinylpyrrolidone, N-dimethylformamide and absolute ethyl alcohol to prepare a core layer solution;
s13, putting the shell layer solution prepared in the step S11 into an outer container of a coaxial electrostatic spinning device, putting the core layer solution prepared in the step S12 into the inner container of the coaxial electrostatic spinning device, and preparing precursor micro-nanofibers through the coaxial electrostatic spinning device;
s14, drying, calcining and cooling the precursor micro-nano fiber prepared in the step S13 to room temperature to prepare Sn 0.84 Sb 0.08 Sm 0.08 O 2 。
6. The method according to claim 5, wherein the SnCl in the step S11 2 ·2H 2 O：Sm(NO 3 ) 3 ·6H 2 O：SbCl 3 Is 0.84:0.08:0.08.
7. the method according to claim 4, wherein the step S2 comprises the steps of: hydroxyl-terminated polybutadiene, isophorone diisocyanate and bis (2-hydroxyethyl) disulfide are mixed and stirred to prepare polyurethane with dynamic disulfide bonds; the hydroxyl-terminated polybutadiene: isophorone diisocyanate: the mass ratio of bis (2-hydroxyethyl) disulfide is 3:1:0.52.
8. the method according to claim 7, wherein the step S2 comprises the steps of:
s21, putting hydroxyl-terminated polybutadiene into a beaker, and preheating and stirring at the temperature of 60-80 ℃;
s22, adding isophorone diisocyanate into a beaker, and continuously stirring for 1h at the temperature of 60-80 ℃;
s23, adding bis (2-hydroxyethyl) disulfide into a beaker, and continuously stirring for 1h at the temperature of 60-80 ℃ to prepare the polyurethane with the dynamic disulfide bond.
9. The method of claim 8, wherein the chemical formula of the method is:
。
10. the method according to claim 4, wherein the step S3 comprises the steps of: prepared Sn 0.84 Sb 0.08 Sm 0.08 O 2 Adding the mixture into polyurethane with dynamic disulfide bonds, mixing and stirring for 2 hours, and then performing ultrasonic dispersion for 0.5 hour to obtain the coating.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108441108A (en) * | 2018-03-22 | 2018-08-24 | 南京大学 | A kind of low infrared emissivity is compatible with the composite coating and preparation method thereof of low laser reflectivity |
| CN110105532A (en) * | 2019-05-05 | 2019-08-09 | 湖北三江航天江河化工科技有限公司 | Thermoplasticity selfreparing polyurethane resin and preparation method thereof for 3D printing composite material |
| CN110591542A (en) * | 2019-08-28 | 2019-12-20 | 山东大学 | Disulfide bond and hydrogen bond containing dual self-repairing polyurethane coating for invisible car cover and preparation method thereof |
| US20200157271A1 (en) * | 2017-07-12 | 2020-05-21 | Korea Research Institute Of Chemical Technology | Self-restoring polyurethane-based polymer and preparation method therefor |
| CN111499833A (en) * | 2019-01-31 | 2020-08-07 | 南京理工大学 | Polyurethane type self-repairing resin |
| CN113372527A (en) * | 2021-06-07 | 2021-09-10 | 中国人民解放军陆军工程大学 | Preparation method of bionic room-temperature self-repairing polyurethane material |
| WO2022169317A1 (en) * | 2021-02-08 | 2022-08-11 | 한국화학연구원 | High-strength self-healing polyurethane polymer having room-temperature self-healing function |
-
2022
- 2022-09-28 CN CN202211194127.2A patent/CN115651514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200157271A1 (en) * | 2017-07-12 | 2020-05-21 | Korea Research Institute Of Chemical Technology | Self-restoring polyurethane-based polymer and preparation method therefor |
| CN108441108A (en) * | 2018-03-22 | 2018-08-24 | 南京大学 | A kind of low infrared emissivity is compatible with the composite coating and preparation method thereof of low laser reflectivity |
| CN111499833A (en) * | 2019-01-31 | 2020-08-07 | 南京理工大学 | Polyurethane type self-repairing resin |
| CN110105532A (en) * | 2019-05-05 | 2019-08-09 | 湖北三江航天江河化工科技有限公司 | Thermoplasticity selfreparing polyurethane resin and preparation method thereof for 3D printing composite material |
| CN110591542A (en) * | 2019-08-28 | 2019-12-20 | 山东大学 | Disulfide bond and hydrogen bond containing dual self-repairing polyurethane coating for invisible car cover and preparation method thereof |
| WO2022169317A1 (en) * | 2021-02-08 | 2022-08-11 | 한국화학연구원 | High-strength self-healing polyurethane polymer having room-temperature self-healing function |
| CN113372527A (en) * | 2021-06-07 | 2021-09-10 | 中国人民解放军陆军工程大学 | Preparation method of bionic room-temperature self-repairing polyurethane material |
Non-Patent Citations (2)
| Title |
|---|
| YUANJIA XIA等: "Electrospinning preparation of hollow porous Sn0.84Sm0.08Sb0.08O2 micro/ nano fibers and their multispectral compatible stealth properties", CERAMICS INTERNATIONAL, pages 32226 * |
| 夏元佳 等: "Sn1-x-ySmxSbyO2 微纳米纤维的制备及其红外与激光兼容隐身性能", 中国稀土学报, pages 1 - 11 * |
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