Development history of phenolic resin

1872, German chemist A. Baeyer first discovered that phenol and aldehyde can condense in the presence of acid to obtain amorphous brown-red untreated dendritic products, but did not study it.

In 1902, brummer (L. Blumer) used 135 parts of tartaric acid as a catalyst to obtain the first commercial phenolic resin named Laccain, but it did not form an industrial scale.

From 1905 to 1907, the founder of phenolic resin, American scientist Baekeland, made a systematic and extensive study on phenolic resin. 1909, he put forward the patent of "pressure heating" curing of phenolic resin, which realized the practical application of phenolic resin. It was suggested that this year should be the first year of phenolic resin (or the first year of synthetic polymer).

1907, buckland applied for the patent of "pressure heating" curing of phenolic resin. Bakelite Company was established in 19 10, 10, and distributed in many countries [1939, belonging to United Carbon (UC) Company]. They have applied for more than 400 patents, predicted the main application of phenolic resin as ablation material, and solved the key problems in the application of phenolic resin. Buckland also successfully obtained the technology of curing phenolic prepolymer under high pressure. He clearly pointed out that whether phenolic resin has thermoplasticity depends on the dosage ratio of phenol to formaldehyde and the type of catalyst used. In the presence of alkaline catalyst, even if the phenol is excessive, the product is thermosetting resin, which can be converted into insoluble and insoluble resin after heating.

19 1 1 year, Aylesworth found that using hexamethylenetetramine can cure phenolic resin, turn it into insoluble state, and make it have high electrical insulation and other application characteristics. Phenolic resin therefore began to be used in electrical insulation products.

1912 ~1913 years, Russian scientists Petrov and Tarasov studied the reaction of phenol and aldehyde in the presence of petroleum sulfonic acid and aromatic sulfonic acid, and invented the method of manufacturing phenolic resin injection products by injection molding.

19 13 years, German scientist Albert invented rosin modified phenolic resin, which is suitable for making paints and coatings. The invention paves the way for the successful application of phenolic resin in the field of coatings.

19 14, the Japanese introduced buckland technology and began to produce phenolic resin in Tokyo, which was the first in Asia at that time.

In 1923, the United States put into production phenol furfural molding powder.

From 65438 to 0930, phenolic foam was put into production in the United States.

From 65438 to 0937, plasticized etherified phenolic resin was developed and used in paints and coatings.

From 65438 to 0945, high ortho-phenolic resin and its rapid prototyping molding powder were industrialized in the United States.

65438-0946 NBR modified phenolic resin and its molding powder were put into production in the United States.

From 65438 to 0949, aniline modified phenolic molding compound powder was put on the market.