HEXAGONAL BORON NITRIDE REINFORCED ZINC OXIDE NANOCOMPOSITE MATERIAL AND PREPARATION METHOD

Abstract

The invention relates to the preparation method and the creation of a nanocomposite material with superior properties by combining hexagonal boron nitride (hBN) nanoparticles and zinc oxide (ZnO) nanoparticles.

Description

1 TARIFF HEXAGONAL BORON NITRIDE REINFORCED ZINC OXIDE NANOCOMPOSITE MATERIALS AND PREPARATION METHOD TECHNICAL AREA 5 The invention involves hexagonal boron nitride (hBN) nanoparticles and zinc oxide (ZnO). nanocomposite materials with superior properties are created by combining nanoparticles. It is related to the preparation method. PREVIOUS TECHNIQUE 10 The foundation of the industrial era of the twenty-first century and the centuries to come. The nanomaterial that will be used as the material will determine the atomic and molecular level of matter. It is defined as the science of being able to control nanomaterials. Today, nanomaterials offer high-level capabilities. value-added technology, defense industry, medicine, automotive and textile applications, etc. It has become a crucial material for highly competitive production lines. 15 In recent years, nanotechnology discoveries have made a significant impact, particularly in materials science and in our daily lives. It has led to significant progress in many new products or processes. Existing current strengthening materials or combining materials with different properties Developing a new material for production is of vital importance for our future. hBN is a white, graphite-like material in structure but alumina-like in appearance. It is a non-toxic, slippery material in various colors. It has the lowest value among ceramic materials. It is the most dense (2.27 g / cm3). hBN has a crystal structure similar to graphite. However, The difference between hBN and graphite is that hBN is white and has high electrical resistance. The parts produced can be processed very easily. hBN is an inert material; it does not chemically react and is non-toxic. Very 25 It is resistant to high temperatures. hBN can withstand temperatures up to 1000 °C in a normal atmosphere, and up to 1400 °C. up to 2000 °C in a vacuum, up to 2400 °C in an argon atmosphere, and... It is a material that can be used in a nitrogen atmosphere. In addition to its stability against thermal shocks... In addition, it has excellent electrical insulation, thermal conductivity as good as copper, and blocks ultraviolet rays. It has reflective properties. In addition, it has excellent lubrication properties. 30 It has. ZnO is defined as a metal oxide structure with Zn and O atoms in its crystal structure. It is a semiconductor with a hexagonal wurtzite (zinc and iron sulfide) crystal structure. ZnO is an inorganic, white, and water-insoluble compound. It exhibits tetrahedral bonding. 2 This situation is an example of sp3 covalent bonding and has a high ionic character of ~62%. This value indicates that the ZnO bonding structure is very strong and that this material... This shows that it can be used in high-power electronics applications. ZnO with a hexagonal wurtzite structure has a wide direct band gap (3.36 eV). It has a close-packed structure with mesh parameters a=0.325 nm and c=0.521 nm. 5 Studies have been conducted using both hBN and ZnO particles separately. The following are given below. However, so far, hBN and ZnO particle materials have been studied. Creating a composite material with new properties by combining their existing characteristics. It has not been done. Studies using hBN nanoparticles: 10 hBN / Al2O3 Nanoparticle additives affect the tribological performance of engine oil. In the study on its effect, the addition of hBN to the produced engine oil resulted in SAE 15W40 The addition of hBN nanoparticle additives to diesel engine oil results in... It has been observed that the coefficient of friction and the rate of wear have decreased significantly. The situation is that hBN nanoparticles reduce the sliding friction between friction pairs by 15 By altering the rolling friction, it causes a reduction in the contact area, resulting in ball bearings. This indicates that it has a bed effect. hBN for nanofluid-MQL in turning of Ni-based Inconel 625 The addition of nanoparticles reduces tool wear, improves tool life, roughness, and In the study on its effect on temperature, the addition of 0.5% by volume of hBN nanofluid was found to be 20... It reduced the amount of wear by 43%. hBN additive improved the machinability of the surface. It has been observed to increase [the benefits]. For low tool wear, roughness and high tool life. It has yielded promising results. As a friction modifier and wear inhibitor additive in engine oil. In a study on the potential of hBN nanoparticles, 25 in engine oil hBN as a potential friction modifier and wear inhibitor additive. The study presented the results of nanoparticles. The work showed that the optimized nano oil, It can reduce the coefficient of friction and wear compared to a conventional diesel engine. It shows that it can increase resistance. Friction reduction performance, tribochemical This can be attributed to boron oxide formed by reactions and a significant increase in wear rate. a decrease has been observed. Antimicrobial and antibiofilm activities of hexagonal boron nitride nanoparticles, In a study on the effects of hBN nanoparticles on cell viability, different Antimicrobial and antibiofilm activities on microorganisms have been investigated. 3 Additionally, it simulates the specific target organ or system that will be exposed to nanoparticles. hBN nanoparticles in different mammalian cell lines (MDCK and CRL 2120) Cytotoxicity profiles were evaluated. hBN nanoparticles inhibited bacterial growth. hBN nanoparticles have inhibited S. mutans 3.3, S. mutans ATTC 25175 and Pre-formed biofilm 5 that inhibits biofilm growth of Candida sp. M25. It has shown high antibiofilm activity on MTT, SRB and PicoGreen. According to the results of the analyses, on both the first and second days, hBN nanoparticles It has no cytotoxicity in all cells within the concentration range of 0.025-0.1 mg / mL. It has been observed that hBN nanoparticles are present at a concentration of 0.1 mg / mL. It can be considered a potentially safe oral care product. 10 Trimethylol propane triester based using molecular dynamics simulation Evaluation of the stability of hBN nanoparticles in biolubricants In the study conducted, TMP trial-based simulation approach was used. The stability of hBN nanoparticle additives in biolubricants has been evaluated. Accordingly, hBN nanoparticles are stable in biolubricants for 15 seconds. It has been shown that it can be used. Research on the use of hBN nanoparticles in prostate cancer treatment. In the study, hBN nanoparticles were found to have a high surface area, low toxicity, and suitability in an aqueous environment. Due to its unique physicochemical properties such as slow decomposition, it is used in medical and biomedical applications. It has attracted significant attention in various fields. hBN seriously reduces reactive oxygen species (ROS) production. It clearly promotes prostate cancer cell apoptosis by increasing it in this way. This shows that, in addition, reductions in metastatic capacity indicate a safer approach against prostate cancer. This has encouraged the use of hBN as a therapeutic agent. Low dielectric fluorinated ethylene by adding polytetrafluoroethylene (PTFE) nanoparticles. Thermal conductivity and mechanical properties of propylene (FEP) / hBN composites 25 In the study conducted on its development, it has a high thermal conductivity filler content. Overcoming the problems encountered during the formation of polymer-based composites a push-pull mixer (PPM) based on elongation deformation theory to come A mixing device has been constructed to increase the thermal conductivity of FEP using hBN. nanoparticles, hBN microparticles and PTFE fillers were added to the FEP matrix at 30°C. The dielectric constant and dielectric loss of the produced fillings at 1 MHz are as follows: It was observed that they maintained low levels of 2.6 and 0.014 respectively. elastic and plastic properties of ultra-fine grained Mg reinforced with hBN nanoparticles. In the study conducted on the investigation of the behavior of Mg-hBN nanomaterial 4 Tensile and compressive strengths, as well as those of Mg alloys and their monolithic counterparts. In comparison, Mg-hBN nanocomposites are superior to their monolithic counterparts. It exhibits excellent mechanical properties at both room temperature and high temperatures. Structural adhesive with functionalized boron nitride nanoparticles, In the study conducted on improving the thermal and mechanical properties of hBN 5 Nanoparticles were functionalized with APTES and applied to a structural adhesive. Structural, thermal, and mechanical properties of modified adhesives have been added. It was investigated using experimental and instrumental techniques. FT-IR spectra and SEM-EDS. According to the images, hBN nanoparticles form covalent bonds with APTES. As a result, it was observed that the functionalization process took place. hBN nanoparticles 10 increased interfacial interaction between the epoxy matrix and the substrate, resulting in a homogeneous dispersion. This was understood from the SEM images it provided. All modified with the addition of hBN. In adhesives, Tg provides a reinforcement ratio of up to 2% and 3% compared to unreinforced adhesives. The concentration of hBN nanoparticles has been increased, positively impacting the curing behavior. It has been observed that the addition of hBN nanoparticles has a 15% effect on thermal stability. It can be said that it has a positive effect. The tensile strength of hBN reinforced adhesives. stress, strain, modulus of elasticity and static toughness values ​​of hBN nanoparticles It has been observed that supplementation increased the yield by 0.5% to 5%. Structural with 3% hBN additive. The tensile strength and modulus of elasticity of the adhesive are approximately 48% and 49%, respectively. It has increased. 20 Studies using ZnO nanoparticles: Review of ZnO nanoparticles as solar photocatalysts, In the study on synthesis, mechanisms and applications, ZnO nanostructures for the solar-induced photodegradation process of persistent organic pollutants It has been shown to be a potential candidate as a photocatalyst. Low production cost, 25 non-toxic and a larger fraction of the solar spectrum compared to TiO2 It has the ability to absorb. Antibacterial behavior of suspensions of ZnO nanoparticles In the study conducted on the investigation, suspensions of ZnO nanoparticles were found to be E. The antibacterial behavior of ZnO nanoparticles against E. coli was investigated. Accordingly, 30 It did not significantly affect the antibacterial activity, but it did affect the stability of the suspensions. It has been observed to increase. Enhanced bioactivity and antimicrobial activity of ZnO nanoparticles In the study conducted on its investigation, ZnO with various particle sizes was examined. The antibacterial activity of nanoparticles has been investigated. ZnO nanoparticles It has been determined that ZnO nanoparticles have biocidal activity and bactericidal properties. It has been observed that its effectiveness increases as the particle size decreases. ZnO nanoparticles both Its corrosiveness and surface oxygen species support its biocidal properties. It has been observed. 5 To improve the mechanical strength of cement mortars, add to the cement mortar Composite mortars were obtained by mixing ZnO nanoparticles. The investigations carried out... As a result, there have been significant improvements in the mechanical performance of composite mortars. It has been observed. Zinc, chromium, and titanium nanoparticle coating improves the mechanical properties of EN24T steels. In a study concerning a comprehensive examination of its impact on properties, EN24T Increasing the surface hardness of steel by coating it with zinc, chromium, and titanium nanoparticles. The aim was to improve tool life. As a result of the study, zinc nanoparticles increase the hardness of steel and the surface of the processed part. It has been observed to reduce roughness. 15 A BRIEF DESCRIPTION OF THE INVENTION The invention involves hexagonal boron nitride (hBN) nanoparticles and zinc oxide (ZnO). the production of nanomaterials with superior properties by combining nanoparticles It is based on. The nanomaterial produced has high tensile and compressive strengths, 20 biocompatible, highly lubricating, low density, high thermal Its conductivity, high resistance to high temperatures, and ease of processing make it suitable for defense applications. in industry, medicine and biomaterials applications, automotive, textile and electrical. It meets the needs in the field. In the defense industry, with powder metallurgy. It becomes a nanocomposite material by combining it with a metal material, and is 25 times more durable than its counterparts. Higher mechanical strength, high temperature resistance, and lubricating properties. This allows for better friction and wear conditions. In engine oil, cooling When used as nanofluids in systems, compared to other materials used. It demonstrates superiority. Thanks to its biocompatibility, it is highly effective in medical applications. With its electrical conductivity and high thermal conductivity, it is used in the manufacture of electronic components. It is available for use. 6 LIST OF FIGURES Figure 1. Schematic View of Pure ZnO Production. Figure 2. View of the ZnO-hBN Production Scheme. The corresponding numbers in the figures are 5. 1) 1. Each 2) 2. Each 3) 3. Beaker 4) 4. Each 5) 5. Each 10 6) Mixture-1 (Methanol+(Zn(CH3COO)2· 2H2O) 7) Mixture-2 (Methanol + NaOH) 8) Mixture-3 (ZnO) 9) Mixture-5 (Methanol+hBN) 10) Mixture-4 (ZnO+hBN) 15 DETAILED DESCRIPTION OF THE INVENTION The process of synthesizing nanomaterials with the invention 1. Into methanol in the beaker (1) It was started by adding zinc acetate dihydrate (Zn(CH3COO)2· 2H2O) (6) and dissolved It was stirred in a magnetic stirrer until 20 methanol was added to the beaker (2). Mixture-2 (7), Mixture- The solution was slowly poured into the beaker in 1 (6) and these two solutions were combined in the beaker in 3 (3) (8). Then methanol is added to this solution again and stirred using a magnetic stirrer. It has been dissolved. After mixing, the solution should be allowed to cool to room temperature. They were left to sit. Then, the nanoparticles that had settled on the filter paper were collected. 25 It was filtered and washed with alcohol. After the alcohol washing process... Then, the mixture was rinsed several times with pure water. The nanoparticles were placed in an oven. Dried, the dried particles are pounded and ground into nanoparticles using a mortar and pestle. The annealing process was carried out in the furnace. Thus, pure ZnO, which is Sample 1, was obtained. Nanoparticles were obtained. 30 to produce hBN-doped ZnO nanocomposites. The same process steps were repeated. These nanocomposites were also produced from pure ZnO. This was achieved in a similar way to the production of nanoparticles. Furthermore, it is commercially available. The supplied nano-hBN particles are at least 5% by weight (wt.%) in the beaker (4). 7 methanol was added (9) and mixed in an ultrasonic bath. Mixture-5 (10) Mixture-4 (9) was added and stirred in a magnetic stirrer and then pure ZnO was mixed All the processes applied to produce it have been repeated. Microstructural and morphological characteristics after the production process steps. X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy 5 are used for examination. (FE-SEM) and Energy Dispersive Spectrum (EDX) analyses were performed. The synthesized material... The samples were found to be pure hBN, pure ZnO, and ZnO-hBN. The nanomaterial... The atomic percentages (at.%) of the constituent elements are shown in Table 1. Pure ZnO, hBN The XRD diffraction results of ZnO-hBN nanoparticles are shown in Figure 1, along with pure ZnO, hBN, and The EDX results of ZnO-hBN nanoparticles are shown in Figures 2, 3, and 4. Content (at.%) HB Zn O 1 49.73% 50.27% - - 2 - - 62.77% 37.23% 3% 46.25% 21.88% 13.64% 18.23% Table 1. Atomic percentages of the resulting nanomaterials. Figure 1. XRD analysis results 15 8 Figure 2. Results of EDX analysis of pure ZnO sample. Figure 3. Results of EDX analysis of pure hBN sample. 9 Figure 4. Results of EDX analysis of ZnO-hBN sample. In pure ZnO samples, the following temperature values ​​were obtained: 31.898°, 34.550°, 36.389°, 47.681°, 56.740°, 62.990°, The dense 5 corresponding to degrees 2θ at 66.509°, 68.085°, 69.241°, 72.759° and 77.092° The peaks are consistent with JCPDS chart number 36-1451 and these peaks are characteristic of ZnO. These peaks are (100), (002), (101), (102), (110), (103), (200), (112), (201), (004) and (202) corresponds to the planes. In the composite sample, it belongs to pure ZnO. In addition to the characteristic peaks, the characteristic peak of hBN is at 26.908° 2θ. It is seen and this peak corresponds to the (002) plane. Analysis results hBN and 10 This shows that it also maintains the characteristic properties of ZnO. Production and the analysis results of the material whose analyses have been completed show that hBN addition with ZnO It shows that they have united. To illustrate with an example experiment; the nanomaterial synthesis process begins with step 1. Add 0.5 M zinc acetate dihydrate (Zn(CH3COO)2· 2H2O) 15 ml to 25 ml methanol in a beaker (1). It was started by adding (6) and stirred on a magnetic stirrer until dissolved. 2. Add 2.5 M sodium hydroxide (NaOH) to 25 ml methanol in a beaker (2) and stir until dissolved. Mixed (7). Mixture-2 (7) was slowly poured into the beaker in Mixture-1 (6) and this The two solutions were combined in the beaker (3) (8). Then 10 ml more was added to this solution. Methanol was added. The resulting solution was stirred at 80 °C for 3 hours and then... It has been dissolved. After mixing, the solution should be allowed to cool to room temperature. They were left to sit. Then, the nanoparticles that had settled were placed on filter paper. It was filtered and washed with alcohol. After the alcohol washing process... Then, the mixture was rinsed several times with pure water. The nanoparticles were heated at 80 °C for 3 minutes. The particles were dried in an oven for hours. The dried particles were pounded and ground with a mortar and pestle. Nanoparticles were annealed in an oven at 450 °C for 1 hour. Thus, Sample 1... Pure ZnO nanoparticles were obtained. hBN-doped ZnO nanocomposites were also produced. The same process steps are repeated in production. The only difference is that it is commercially available from the market. Nano-hBN particles supplied as 4. Percentage by weight (wt.%) in Beaker (4) 10 5 10 ml methanol was added to it (9) and put into an ultrasonic bath for 30 minutes. ZnO nanoparticles were mixed by adding hBN and stirring them in a magnetic stirrer. It was dissolved. Mixture-4 (9) was added to Mixture-5 (10) and to produce pure ZnO. Production of hBN-doped ZnO nanocomposites by repeating all the applied processes. It has been done. 10 20 30

Claims

11 REQUESTS 1.

1. Beaker (1) 25 ml methanol in 0.5 M zinc acetate dihydrate (Zn(CH3COO)2· 2H2O) (5), 2. Beaker (2) 2.5 M methanol in 25 ml By adding sodium hydroxide (NaOH) (6), Mixture-2 (6) slowly to Mixture-1 5 (5) by pouring the two solutions into the beaker, combining these two solutions in the beaker (3), the resulting Add another 10 ml of methanol to the solution and stir at 80 °C for 3 hours. After mixing, the solution should be allowed to cool to room temperature. Filtering of nanoparticles that have settled on filter paper, with alcohol Rinsing several times with pure water after washing, 10 drying the nanoparticles in an oven at 80 °C for 3 hours, the dried particles crushing in a mortar, grinding the nanoparticles, and then baking them in an oven at 450°C for 1 hour. The production of pure ZnO after the annealing process, using commercially available nano- hBN particles in Beaker (4) at a rate of 10% by weight (wt.%) Adding methanol to Mixture-5 (7) and Mixture-4 (8) to obtain pure ZnO 15 By repeating all the processes applied to produce hBN-doped ZnO nanocomposites obtained by applying the steps of producing nanocomposites The material consists of hexagonal boron nitride (hBN) and pure zinc oxide (ZnO). It is characterized by its inclusion. 25