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Research on flame retardant nano magnesium hydroxide process

China’s plastic flame retardant material is mainly based on decabromodiphenyl ether, but decabromodiphenyl ether in combustion will produce toxic carcinogenic polybrominated dibenzofuran and other substances, and make it some countries to resist the use of. Therefore, flame-retardant materials also develop towards the direction of high efficiency, low toxicity and low smoke. It is necessary to develop nontoxic flame retardant with excellent performance. Inorganic materials used as flame retardants include Mg(OH)2, AL(OH)3, Sb2O3, etc. These inorganic flame retardants not only [...]

The difference between industrial grade lithium carbonate and battery grade lithium carbonate

Compared with industrial grade, battery grade lithium carbonate has high purity, few impurities and good performance. Lithium carbonate is an inorganic compound. It is colorless monoclinic crystal or white powder. Its chemical formula is Li2CO3. Soluble in dilute acid, slightly soluble in water, greater solubility in cold water than in hot water. Insoluble in alcohol and acetone. Density 2.11g/cm3, melting point 723℃. Can be used to make ceramic, medicine, catalyst, commonly used lithium ion battery materials. Compounds, lithium metals and isotopes [...]

Properties of nano-aluminum nitride filled ptfe composites

Nano aluminum nitride powder has high specific surface area, high hardness, high thermal conductivity, high insulation and other characteristics, belongs to diamond-like nitride, can be stable to 2200℃, high strength at room temperature, good compatibility with the matrix interface, can improve the thermal conductivity and dielectric properties, mechanical properties and wear resistance of the composite. PTFE, commonly known as “plastic king”, has a linear molecular chain structure and is a non-polar polymer, with good chemical corrosion resistance, high and low [...]

Application of nanometer silicon carbide powder in catalyst and capacitor

Due to its large specific surface area, suitable band gap (2.39-3.33ev) and excellent thermodynamic and chemical stability, nanometer silicon carbide powder has a wide range of applications in photocatalysis and electrocatalysis. On the other hand, due to its stable chemical properties, nano-sic nanomaterials can also be used as catalyst carriers and supported metal nanoparticles for multiphase catalysis and fuel cell catalysis. It is reported that the nanocrystalline nanocrystalline nanocrystalline betac-sic wires are coated on the surface of amorphous nanocrystalline [...]

Preparation method of nano silicon carbide infrared radiation coating

2.2.1.1 ingredients Powder radiation mixture: Based on the weight content of (D50 = 40nm, beta phase) nanometer silicon carbide powder raw material, Nano silicon carbide (SiC) powder raw material weight of 40 and 80, zirconia (ZrO2) powder raw material 5 ~ 30 weight, chrome oxide (Cr2O3) 5 ~ 10 weight, iron oxide powders (Fe2O3) powder materials 0 to 20 weight, nickel oxide (NiO) powder raw material weight of 0 ~ 10 copies, 1 ~ 10 weight of bentonite powder raw [...]

New method for processing nanomaterials

Engineers at Rutgers University and Oregon State University are developing a new approach to nanomaterials that makes it possible to manufacture flexible thin-film devices from touchscreens to window coatings faster and cheaper. This method, known as “strong pulsed light sintering,” fuses nanomaterials in seconds with high energy rays that are nearly 7,000 times larger than lasers. Existing pulsed light fusion methods incorporate silver nanospheres into a conductive structure using a temperature of approximately 250 degrees Celsius (482 degrees Fahrenheit). But the [...]

Agglomeration and dispersion of nano powders

At present, all kinds of nanometer powders can be easily prepared, but the agglomeration of nanometer powders seriously hinders the application of nanometer powders and the preparation of nanometer materials. For nanomaterials with self-assembled structure, the designed structure cannot be obtained due to the agglomeration problem. For nanocrystalline materials, the agglomeration will cause the abnormal growth of particles and lead to the degradation of properties. For the occasions where nanometer luminescence and nanometer catalysis are used directly, the agglomeration [...]

Physical preparation of nano powders

Nano powders, also known as nanoparticles, generally refer to ultrafine particles between 1 and 100nm in size. Some people call them ultrafine particles. It is larger than a cluster of atoms and smaller than ordinary particles. In terms of its size, assuming that each atom is one angstrom in size, it contains between 1000 and 1 billion atoms. It’s smaller than a normal living cell, about the size of a virus. Nanoparticles are spherical, plate-like, rod-shaped, angular, spongy and [...]

Research and application of aluminum nitride and aluminum nitride ceramics

Aluminum nitride (AlN) is a kind of integrated high performance new ceramic material, has excellent thermal conductivity, a reliable electrical insulation, low dielectric constant and dielectric loss, non-toxic and match the silicon thermal expansion coefficient, and a series of excellent features, is considered to be * * a high degree of the semiconductor substrate and the ideal of the electronics packaging materials, wide attention by the researchers at home and abroad. In theory, the thermal conductivity of AlN is [...]

How to analyze the fiber strength of potassium titanate whisker

In recent years, potassium titanate whisker achieved breakthrough on the manufacturing cost, combined with the diverse, more and more attention, the performance is very excellent after wear test proves that the potassium titanate whisker reinforced material products even after wear test its surface finish and no big change, potassium titanate whisker was originally by NASA as Saturn rocket nozzle of insulation material development. In view of the rocket launch a flushing high temperature and high pressure air flow, filling [...]