Modified engineering plastic capable of being used for manufacturing flame-retardant mahjong tiles

Abstract

The invention discloses modified engineering plastic capable of being used for manufacturing flame-retardant mahjong tiles. The modified engineering plastic is prepared by carrying out curing on 97-116 parts of a benzoxazine monomer, 17-23 parts of liquid nitrile rubber, 13-24 parts of phthalic anhydride and 1.5-11.3 parts of organic modified montmorillonite, wherein the organic modified montmorillonite can effectively assist the liquid nitrile rubber in being uniformly dispersed in benzoxazine resin matrix, so that a synergistic toughening effect is achieved. The modified engineering plastichas the advantages of being good in fracture toughness property and high in Young modulus and tensile strength, a clear and melodious sound is generated during collision, the modified engineering plastic can be widely applied to manufacturing of chess and card tools represented by mahjong and ball tools, is wear-resistant, drop-resistant and smooth in hand feeling and can be used for a long time.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a modified engineering plastic which can be used for making flame-retardant mahjong tiles. Background technique [0002] Mahjong is one of the traditional games in our country. It is said that the "horse tag" originated in the Wanli period of the Ming Dynasty and has a history of more than 400 years. "Horse tag" is a painted card, divided into "wenqian, rope, ten thousand characters, cross" and other tricks, played by four people. By the Qianlong period of the Qing Dynasty, there were 120 "horse tag" cards, and they were still played by 4 people. Later, due to the increase of many flower tiles, it gradually evolved into "mahjong tiles", and the tiles were changed to bamboo, bone or ivory, and its shape is roughly the same as today's mahjong tiles. The early mahjong was mostly made of bone, and the current mahjong is mostly made of plastic. All-plastic ma...

AI Technical Summary

Problems solved by technology

Celluloid is flexible, fold-resistant, impact-resistant, and elastic. It is mostly used to make mahjong, billiards, table tennis, guitar picks, etc., and such products represented by mahjong can use the crisp sound produced by its impact and vibration to give Give users a good entertainment experience, but its disadvantages are that it has peculiar smell, is easy to burn, and if you are not careful, it will cause a fire. It cannot be exposed to the sun or heat. In the process of people's mahjong entertainment, fires caused by smoking are common

Although plexiglass has high transparency, it is brittle, its corners are easily damaged, its durability is not high, it is not resistant to falling, and its sound is dull when it is hit. It does not have the crisp and pleasant sound of traditional ivory and celluloid materials, and the sensory experience is greatly reduced.

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