Phenol formaldehyde composition and application, preparation method and grinding wheel thereof

The invention provides a phenol formaldehyde composition and an application, a preparation method and a grinding wheel thereof. The phenol formaldehyde composition is characterized in that the phenol formaldehyde composition comprises, by weight, 10-100 parts of thermoset solid phenol formaldehyde, 0-90 parts of thermoplastic solid phenol formaldehyde and 0.1-5 parts of curing agents; the softening point of the thermoset solid phenol formaldehyde is equal to or greater than 60 degrees; the curing agents are selected from one or more of hexamethylenetetramine, polyformaldehyde and aniline. According to the formula of the grinding wheel composed of phenol formaldehyde compositions, the grinding wheel comprises, by weight, 100 parts of grinding materials, 6-10 parts of wetting agents, 16-23 parts of the phenol formaldehyde compositions and an appropriate amount of auxiliary materials. The preparation technology of the grinding wheel comprises the steps that a double cauldron counter flow material mixing process