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Particle size and application of hexagonal boron nitride in cosmetics
Hexagonal Boron Nitride is a kind of white powder with good lubrication, high temperature resistance, corrosion resistance, high thermal conductivity and good insulation. It is often used as raw materials of ultra-high temperature materials, and has been widely used in energy, aerospace, cosmetics, electronics and other fields. The different particle size of hexagonal boron nitride is suitable for production with different products. The product selection will enhance the effect if the particle size of hexagonal boron nitride is correct.
The particle size of hexagonal boron nitride is 1-30 μm. The particle size is smaller and the crystallinity is higher. It is suitable for products with smaller particle size requirements, such as additives for heat-conducting tape and film, additives for thermally conductive fiber products, special ceramic raw materials.
Hexagonal boron nitride 5-15 microns has a small original particle size and large agglomeration particle size. Because the particles are ball-shaped, it is used as a filler, mold release agent and composite ceramic for casting and injection molding, and also easy to be hot pressed.
eyeshadow and lipstick can all add boron nitride to increase lubrication and pearlescent effect. The choice of six square boron nitride with 13 microns or more is better and the effect is better. For lipstick, it is better to choose the hexagonal boron nitride from about 3 μm to 5 μM.
Why is boron nitride used in cosmetics?What kind of makeup material is boron nitride? Which 's different from its predecessor, titanium dioxide?
First, the boron nitride is a flat structure, which is lighter and feels better against the skin. Appearance of titanium dioxide and boron nitride powders under the microscope are very different, titanium dioxide shows a granular form, while boron nitride, with a plate form, has a stronger air permeability and is more skin tight when used.
Second, boron nitride does not block powder and adds charming ceramic shine to the skin, slightly weak hiding power; titanium dioxide, on the other hand, blocks powder earlier, characterized by no gloss, but a strong covering power.
Third, boron nitride has excellent diffuse transmission and reflection effects on light, creating a small halo phenomenon. Not only can it blur the fine lines and spots, increase the softness and blurriness of the reflected light on the face, and let the user bring the soft focus effect without PS. And the main functions of titanium dioxide are bleaching and camouflage, high covering power and good whiteness. The disadvantages are a high refractive index and a high aperture. Incorrect quality control can easily cause the user "zombie white", "dead fish white" and other bad bleaching effects.
Fourth, the boron nitride powder is easy to push away and the skin feels softer. Titanium dioxide crystal has clear edges and corners, the skin feels astringent and not smooth enough, which affects the skin feeling. Boron nitride, however, has a layered crystal structure similar to graphite. The atoms in the layer are strongly covalently bonded and have a dense structure. However, the molecular bonds between layers are weak and easy to slide together by pushing sideways.
The particle size of hexagonal boron nitride is 1-30 μm. The particle size is smaller and the crystallinity is higher. It is suitable for products with smaller particle size requirements, such as additives for heat-conducting tape and film, additives for thermally conductive fiber products, special ceramic raw materials.
Hexagonal boron nitride 5-15 microns has a small original particle size and large agglomeration particle size. Because the particles are ball-shaped, it is used as a filler, mold release agent and composite ceramic for casting and injection molding, and also easy to be hot pressed.
eyeshadow and lipstick can all add boron nitride to increase lubrication and pearlescent effect. The choice of six square boron nitride with 13 microns or more is better and the effect is better. For lipstick, it is better to choose the hexagonal boron nitride from about 3 μm to 5 μM.
Why is boron nitride used in cosmetics?What kind of makeup material is boron nitride? Which 's different from its predecessor, titanium dioxide?
First, the boron nitride is a flat structure, which is lighter and feels better against the skin. Appearance of titanium dioxide and boron nitride powders under the microscope are very different, titanium dioxide shows a granular form, while boron nitride, with a plate form, has a stronger air permeability and is more skin tight when used.
Second, boron nitride does not block powder and adds charming ceramic shine to the skin, slightly weak hiding power; titanium dioxide, on the other hand, blocks powder earlier, characterized by no gloss, but a strong covering power.
Third, boron nitride has excellent diffuse transmission and reflection effects on light, creating a small halo phenomenon. Not only can it blur the fine lines and spots, increase the softness and blurriness of the reflected light on the face, and let the user bring the soft focus effect without PS. And the main functions of titanium dioxide are bleaching and camouflage, high covering power and good whiteness. The disadvantages are a high refractive index and a high aperture. Incorrect quality control can easily cause the user "zombie white", "dead fish white" and other bad bleaching effects.
Fourth, the boron nitride powder is easy to push away and the skin feels softer. Titanium dioxide crystal has clear edges and corners, the skin feels astringent and not smooth enough, which affects the skin feeling. Boron nitride, however, has a layered crystal structure similar to graphite. The atoms in the layer are strongly covalently bonded and have a dense structure. However, the molecular bonds between layers are weak and easy to slide together by pushing sideways.
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【Editor】：TanyunAll Rights Reserved: https://www.tanyunchem.com
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