What is diamond polishing paste made of?
In addition to diamonds, the other ingredients in diamond paste are surfactants or emulsions, which are water-based and oily. The formulas of each manufacturer are different, which are regarded as confidential, but they are similar with minor differences. Generally, there are many types of active agents, including: perfluorooctanoic acid, Sodium Lauryl Sulfate, Alkylbenzene sulfonates, Soapy water, Cetrimonium bromide, Cetylpyridinium chloride, Cetyl alcohol, Polysorbates, etc.
Diamond paste is a kind of paste carefully prepared from diamond powder, carrier and dispersant. It belongs to soft abrasive and can be divided into oil-soluble grinding paste and water-soluble grinding paste; oil-soluble grinding paste and water-soluble grinding paste are oil-soluble grinding paste and water-soluble grinding paste respectively. Grinding with water as a diluent, although the grinding method is the same, but the grinding effect is different. The oil-soluble grinding paste has good lubrication effect and high smoothness. It is suitable for metal workpieces, such as hard alloys, parts of high-hard materials, instrumentation, Grinding and polishing of measuring tools, cutting tools, molds, etc.; the viscosity of water-soluble abrasive paste is small, the grinding debris is easy to discharge, the grinding efficiency is high, and the surface finish is good. It can be arbitrarily selected according to the needs in the actual application process; it can be said that it is mainly used in the grinding and polishing of gemstones, glass, ceramics, cemented carbide and hardened steel with high finish; when grinding and polishing different materials , you need to choose products with different particle sizes according to your experience and relevant knowledge.
Dispersant is a kind of surfactant with two opposite properties of lipophilicity and hydrophilicity at the same time in the molecule. It can uniformly disperse the solid particles of inorganic and organic pigments that are difficult to dissolve in liquids, and at the same time prevent the sedimentation and agglomeration of solid particles, and form the pharmaceutical required for stable suspension.
Surfactant refers to a substance with fixed hydrophilic and lipophilic groups that can be aligned on the surface of the solution and can significantly reduce the surface tension. Surfactants are molecules formed from two distinct particles, one extremely lipophilic and the other extremely hydrophilic. When dissolved in water, it reduces the surface tension of water and increases the solubility of organic compounds. The properties of surfactants provide a variety of functions for specific applications, including: foaming effects, surface modification, cleaning, emulsions, rheology, environmental and health protection, etc., and are therefore used as performance additives in many industrial formulations, such as Personal and home care, and countless industrial applications: metal handling, industrial cleaning, oil extraction, pesticides, and more.
Commonly abrasive paste:
1. Corundum type abrasive paste - mainly used for grinding steel parts
2. Silicon carbide - boron carbide abrasive paste, mainly used for grinding cemented carbide, glass, ceramics and semiconductors, etc.
3. Chromium oxide abrasive paste - mainly used for fine polishing or non-metallic grinding
4. Diamond abrasive paste - mainly used for grinding hard alloys and other high hardness materials
Ingredients and Uses :
1. Silicon carbide abrasive paste 83%, Vaseline 17% coarsely ground
2. Boron carbide grinding paste 65%, paraffin 35% semi-finishing
3. Mixed grinding paste 35%, white corundum (F600~F1000) and mixed grease 15%, oleic acid 35% semi-fine grinding
4. Boron carbide grinding paste 76%, paraffin 12%, ocean oil 10%, turpentine 2% finely ground