Knowledge about nano materials | Rboschco


  • sodium stearate chemical formula, C18H35NaO2, is an organic compound that has the chemical structure of a long-chain fatty acid with a double bond at the middle of its carbon chain. It is a white solid with a slight tallow-like odor.

    It is a sodium salt of stearic acid and has been widely used as a thickening agent, emulsifier, dispersant and lubricant in soap and cosmetic formulations. It is also used to make latex paints and rubbers, inks, and food additives.

    Sodium stearate is made through a saponification process. It is a natural soap ingredient, derived from the splitting of coconut and palm oils into glycerin and fatty acids. This process results in a chemically stable and highly functional soap that can be used to produce a variety of cosmetics, pharmaceuticals, deodorants, and personal care products. It is a natural, non-allergenic and non-irritating ingredient that can be used to treat and prevent a wide range of skin conditions. It has also been found to be effective in controlling foam during rinsing. It is also used as a waterproofing agent. It is a safe ingredient for use in many personal care products and can be purchased in powder form. It is a white solid and can be soluble in water or alcohol. It has excellent emulsification, penetration and detergency properties.

    Mar 28
  • zinc stearate emulsion has many applications, including rubber, plastics, coatings, inks, paints, thermal paper and cosmetics. It can be used as a release agent, color retention agent and lubricant.

    Generally speaking, zinc stearate is a white powder that is insoluble in water and has a slight fatty odor. It is produced from stearic acid by melting or heating it at high temperature.

    It is widely used as a release agent, heat stabilizer and lubricant in the plastics, polyolefin and rubber industries. It is also used in the wood coatings (lacquer) industry as a polishing additive. It can be used to improve texture and abrasion resistance, and it is a good thickening agent for wood coatings.

    The preparation method is as follows: selecting deionized water, add it into the dispersion machine, warm up to 6080degC, adding wetting dispersing agent, emulsifier, crosslinking agent, bactericide and suspending agent under stirring, and making its dispersion and emulsion, constant temperature 30-40 minutes.

    After the emulsification is completed, water-based defoaming agents are added to quickly eliminate bubbles in the emulsion. Zinc stearate is then added and mixed until it is completely emulsified, then ground to a particle size of 0.5 to 1 micron.

    This dispersion is characterized by being stable, low in viscosity and uniform, having ideal enhancing and lubricating effects. It can be stored for a long time without changing quality, does not appear phenomena of flocculation stratification, has no foam during the production process and is ideal in product quality.

    Mar 28
  • Does magnesium stearate cause arthritic pain or allergies?

    Magnesium stearate is a common ingredient found in supplements and medication capsules. It is a flow agent, lubricant and binder that helps ensure the consistency and quality of your product.

    It is derived from stearic acid, a saturated fat. The stearic acid is extracted from vegetable sources such as coconut oil and palm oil.

    The National Center for Biotechnology Information recommends consuming less than 2,500 milligrams per kilogram of body weight (mg/kg) daily, which is the equivalent to 170,000 mg for a 150-pound adult. That amount should be safe for most people.

    Does magnesium stearate affect the absorption of your pills?

    It may delay tablet dissolution, but it does not impact the overall bioavailability of your supplement or medicine. The stearate is added to the tablets specifically so that they break down more slowly, not so that they are absorbed more quickly.

    Does magnesium stearate have a laxative effect?

    If you consume too much magnesium stearate, it can have a laxative effect. This can trigger a bowel movement or diarrhea, which can be uncomfortable and unpleasant.

    Does magnesium stearate suppress your immune system?

    It has been reported that small amounts of magnesium stearate can suppress your immune system, but this is based on laboratory studies where large amounts of stearic acid damaged cell membranes in immune cells. This type of study does not replicate how your body actually functions when you eat normal amounts of stearic acid, and it is unlikely that the small amount of magnesium stearate in your supplements would have such an effect.

    Mar 23
  • Silicon Nitride Powder is a kind of black gray powder, which has good mechanical properties such as hardness, wear resistance and inherent lubricity. It is often used in bearings, turbine blades, mechanical seal rings and permanent molds.

    In recent years, manufacturers of metal, ceramic and graphite matrix composites have started to experiment with the application of silicon nitride nanopowder as a key additive or component. In metallurgy, this is especially useful for coatings on sleeves, valves, cutting edges, bearings, and turbines that are prone to extensive wear.

    The use of si3n4 powder is also gaining interest in tribological applications for a variety of reasons, namely: high hardness, wear resistance and inherent lubricity. These characteristics are particularly attractive to tribological applications, as they are not influenced by the chemical composition of the material and can provide good wear resistance under unlubricated conditions.

    A number of studies have been conducted on the tribological properties of si3n4-based ceramics with particulate additions of TiB2. These include a comparison of the sliding wear of a Si3N4-40 vol%/TiB2 disc against a BGSN ball in the presence of various phosphorus compounds (Kd). Jones et al. (2001) also performed tribological tests on Si3N4/TiB2 tribo-pairs with particulate additions of TiB2.

    Mar 23
  • Aluminum carbide (al4c3) is an important compound for the development of aluminum-based composite materials. It is a diamond-hexahedral phase that has high hardness, shear strength, and melting point. It is also an ideal second-phase strengthening material for aluminum matrix composites.

    al4c3 is a highly hygroscopic inorganic material with the chemical formula of al4c3. It appears as pale yellow to brown crystals that are stable up to 1400 degC. It decomposes in water and produces methane as a byproduct.

    Typical applications of al4c3 are as an abrasive in high-speed cutting tools and as an amorphous powder for pyrotechnics. It has approximately the same hardness as topaz.

    It is widely used in a variety of industries because of its light weight and good formability. However, it is faced with the problem of low strength, wear-resistance and poor high-temperature performance.

    The synthesis of al4c3 can be achieved through several methods, such as metal direct carbonization and carbon thermal reduction. The advantages of these methods include low synthesis temperature, short reaction time, and uniform particle size.

    However, these methods have their own disadvantages. For example, metal direct carbonization has a high synthesis temperature and long reaction time, while the high-energy ball grinding method has a large energy consumption and inefficient powder particle formation.

    Therefore, the annealing process is an important step in obtaining al4c3 particles. The effect of annealing time on the microhardness value and Al grain size was studied. The results showed that the microhardness value of Al-4.5 wt.% C powder mixture increased after annealing for 1 h at 300 degC, 400 degC, 500 degC and 600 degC. Moreover, nanosized al4c3 particles formed during annealing. These particles acted as a driving force during subsequent annealing and enhanced the microhardness of Al-C powder particles.

    Mar 23
  • The modern industrial sector is dependent on ultrafine alumina. The crystal structure of ultrafine-grained alumina do not change, and the surface effect and size are different from those found in microscopic objects. These effects include quantum effects as well as macroscopic quantum tunneling effects. The powder has excellent properties, including high strength and hardness. It is also resistant to abrasion, high temperatures, oxidation, and high resistance. They have been extensively used as precision ceramics for bioceramics, chemical catalysts, rare earth trichromaticphosphors, integrated circuit chip and light source devices. 1. Materials made of ceramics and composite materials
    In conventional ceramics, ultrafine alumina can be used to increase toughness and decrease the sintering temp. Because ultrafine aluminum powder is superplastic, it eliminates the limitations on the use of low temperature plastics. This is why low temperature plastic ceramics are made. Many applications.
    Ultra-fine aluminum powder is also able to produce a novel type of composite ceramic material and an alloy ultra-fine material. SiC–Al2O3 ultrafine composite material is most notable. With a flexural strength of 300-400 MPa, it can be increased to 1 GPa with single-phase silica carbide ceramics. Also, the material has a greater fracture toughness by over 40%.
    As a dispersion additive and strengthening agent, ultra-fine Alumina is also available. When cast iron laps have been cast, the ultra-fine powdered alumina is used for metamorphic nucleation. The wear resistance can then be increased by several hundred times.

    2, Surface protective layer material:
    The new, ultra thin transparent material is composed of ultrafine alumina particles that are coated on surfaces of metals. Ceramics, plastics, and hard alloys. This can improve the resistance to corrosion, wear resistance, surface hardness and wear resistance. This material can be used for surface protection on machinery, tools, pipes and other similar items.
    One of these is the ultra-fine aluminum ceramic coating tool. This combination of cemented caride and ceramic materials has many advantages. The wear resistance and toughness are greatly increased, as well as the ability to coat more tools. This multiplies the process efficiency by many times, and it is easily repeated.

    3. Catalyst & its carrier
    Ultra-fine Alumina exhibits a high degree of pore size distribution and surface area, with a maximum of 60 to 400 m2/g. It also has a large number of mismatching bonds, under-oxygen and surface smoothness due to the reduction in particle size. The ideal catalyst is a catalyst or catalyst carrier. It can cause a deterioration and create an uneven step. HDS activity is greater in the Co-Mo ultrafine-alumina catalyst with particle-loaded Como than for the Co-Mo common alumina-loaded Como. The catalyst's HDS activity.
    The main application of catalyst and carrier is g-Al2O3, which is widely used in automobile exhaust gas purification, catalytic combustion, hydrodesulfurization, petroleum refining, and polymer synthesis.

    4. Medical and biological materials
    The bioceramic ultrafine alumina does not significantly corrode in normal environments. It is also very structurally compatible. Because the new tissue grows in the pores on the porous ceramic, the bond strength to the body tissue is high. This makes it a popular choice in medical practice. It can be used to make artificial bones and root implants. This device can also be used for alveolar expansions and the reconstruction of maxillofacial problems. It can also repair or modify facial features.
    Research is currently being done on tissue materials, such as artificial airways and bioceramic materials, that emulate biological functions, artificial intelligence, etc.

    5, Semiconductor materials
    Ultrafine alumina is powder with a large surface and interface. It's very sensitive to external moisture. Temperature changes quickly can cause changes in interface ion transport and surface temperature. Ultra-fine alumina AC resistance changes linearly between humidity levels of 30-80%. The AC response is quick, reliable, high-sensitivity, low-pollution, and it can be kept in dusty and smoke environments. This sensor is ideal for moisture sensing and can also be used as a wet-electric thermometer.
    Additionally, ultra-fine aluminum is an extremely common substrate material that can be used for semiconductors. This has many advantages including electrical insulation, chemical endurance, strong radiation resistance and heat resistance. The microelectronics industry, electronics, as well as the information and communications industries use a variety of substrate materials and LSIs.

    6, Optic materials
    Nanoscale Alumina absorbs ultraviolet radiation and produces light waves at wavelengths related to particle size. You can use it as a protective film to the phosphor layer of a compact fluorescent lamp. Additionally, you can combine it with rare earthphosphor to make a luminescent substance for fluorescent tubes to increase the tube's life.
    The ultra-fine alumina can also be used as an anti-ultraviolet absorber. To reduce lamp light decay, and to increase the lamp yield, you can add ultrafine gAl2O3 powder.
    Non-hazardous, non-hazardous Polymer is used to coat the surfaces of alumina granules. It can also be used as a cosmetics base and sunscreen.
    This is because ultrafine particles of alumina have superior mechanical, electrical and chemical properties than conventional particles. High purity ultrafine Alumina Powder has emerged as a promising new field of material research in the last few years. One direction.

    Luoyang Tech Co., Ltd, a leading manufacturer of ultra-fine Alumina Powder, has more than 12 years' experience in chemical product research and development. We are available to assist you with high quality, ultra-fine Alumina Powder. Send an inquiry .

    Mar 22
  • inconel 718 powder is a nickel-based superalloy that has excellent strength and corrosion resistance at both ends of the temperature range. It is widely used in high-value engineering applications, such as jet engines in aerospace and nuclear power plants, as well as in defense and marine sectors.

    Inconel 718 is a versatile material that offers a wide variety of benefits, making it the ideal metal for additive manufacturing or 3D printing. It has an age-hardening property that allows it to be fabricated in complex parts, while its corrosion resistance makes it ideal for high-temperature environments.

    A comparison of rheological properties between virgin and recycled inconel 718 powders was carried out to identify the effects of recycling on powder properties, including particle shape, particle size distribution (PSD), surface texture, and rheological or flow characteristics. A number of tests were conducted to determine the rheological properties of each powder state: Stability and variable flow rate (VFR) test, CPS test, shear test, and wall friction test.

    Porosity levels of LPBF-ed control specimens produced from virgin and recycled IN718 powders were characterized using computer image analysis. The porosity results showed that the pore level of V powders was significantly higher than that of the recycled powder. This was due to the deformed spherical particles that were formed during recycling, which caused the entrapped gas to be re-melted and removed from the powder.

    Moreover, the measured hardness of all powder states did not differ significantly. The average hardness of the powders is in the range of 240-250 HV, which is typical of annealed Inconel 718.

    Mar 19
  • telluride powder is a dream come true for skiers and snowboarders. With over 2000 acres of steep inbounds territory, there's something for every ability level at this iconic ski resort in the San Juan Mountains.

    What's more, it's home to some of the best skiing in North America, with an incredible amount of terrain to enjoy at any point during your trip. From long, scenic runs to more challenging pitches that evoke hoots and hollers from expert skiers, telluride is one of the most epic places to hit the slopes.

    Getting there is half the fun: a spectacular drive through the stunning San Juan Mountains leads to a picturesque main street in a mountain town that oozes adventure. A variety of accommodation options range from luxury to budget hotels, with a great selection of restaurants and bars for apres-ski.

    It’s also easy to get into the spirit of the season, with lots of exciting events and activities taking place during the winter months. From snowshoeing to snowmobiling and ice climbing, there’s no shortage of fun outdoor pursuits in this magical part of the world!

    How to maximise a powder day at Telluride

    The most important thing for beginners on a powder day is to stay on the groomed trails. They’re designed to help you progress, and are a great place to learn new skills. It can be tempting to explore the backcountry on your own, but a local guide will give you all the information and safety advice you need.

    Mar 17
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