Table tennis ball and production method thereof

Abstract

The invention relates to a table tennis ball, 40.00-40.60mm in diameter, 0.4-0.8mm in ball wall thickness and 2.1-3.5g in weight. A body of the table tennis ball comprises, by weight, 70-90wt% of body material and 10-30wt% of toughening material; the body material is engineering plastic; the toughening material is chosen from any one of, or a combination of at least two of MBS (methylmethacrylate-butadiene-styrene copolymer), ACR (methylmethacrylate-acrylate copolymer), NBR (butadiene-acrylonitrile rubber) and TPU (thermoplastic polyurethane). The engineering plastic is used as the body material of the table tennis ball, is AS and / or ABS, is not a flammable and combustible hazardous article, and accordingly is free of flaming and combusting danger; by selecting formula components, the body material high in impact strength, high in elastic modulus, rarity of internal stress cracking and high in softening temperature is obtained, and the produced table tennis ball meets the requirements of International Table Tennis Federation.

Description

technical field [0001] The invention relates to the field of table tennis preparation, in particular to a table tennis ball and a preparation method thereof, in particular to a table tennis ball without celluloid and a preparation method thereof. Background technique [0002] Since the beginning of the 1930s, the solvent method was used to manufacture table tennis in the world, and it has been used until now. However, the solvent method has several major defects: ①The main material is nitrocellulose, which is one of the materials used to make explosives, and it is extremely flammable and explosive; ②A large amount of flammable solvents are used in the manufacturing process. waste and cause harm to the environment; ③There are many equipments, huge investment, and the production line is too long. Low efficiency; ④ Major dangerous accidents are prone to occur in the storage and manufacturing process. [0003] In the eighties of the 20th century, the British Dunlop company onc...

AI Technical Summary

Problems solved by technology

However, the solvent method has several major defects: ①The main material is nitrocellulose, which is one of the materials used to make explosives, and it is extremely flammable and explosive; ②A large amount of flammable solvents are used in the manufacturing process. waste and cause harm to the environment; ③There are many equipments, huge investment, and the production line is too long. Low efficiency; ④Major dangerous accidents are prone to occur in the storage and manufacturing process

[0004] In 1990, Guangzhou Culture, Education and Sports Goods Industry Company used modified polystyrene as the material to make table tennis balls, but the seams were falsely bonded and could not be used.