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Table tennis ball and preparing method thereof

A technology for table tennis and rubber powder is applied in the field of sporting goods and polymer materials, which can solve the problems of inflammability, waste liquid, and waste gas environmental pollution, and achieve the effect of easy control of uniformity and simplified production process.

Inactive Publication Date: 2016-03-09
杭州胜利体育用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the table tennis balls used in the market and in professional competitions are all made of flammable celluloid. Table tennis balls made of celluloid have been used because of their excellent performance, but their flammability is also an unavoidable drawback, and The waste liquid and waste gas produced in the tedious process of preparing table tennis have caused great pollution to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Accurately weigh ABSPA-709: 74.5 parts according to the mass fraction; K rubber powder: 10 parts; Camphor: 5 parts; Antioxidant 1010: 0.3 parts; Extrusion granulation, the method that above-mentioned material is made into table tennis ball is as follows:

[0040] (1) Two yin and yang hemispheres are injection-molded by an injection molding machine;

[0041] (2) bonding the yin and yang hemispheres with an adhesive, and cutting off the excess parts after the adhesive is cured to obtain a ball blank;

[0042] (3) the ball blank is expanded in the mold;

[0043] (4) The table tennis balls that have been puffed are polished in fine sand to obtain finished balls.

Embodiment 2

[0045] Accurately weigh ABSHI-121H according to the mass fraction: 80 parts; K rubber powder: 15 parts; Camphor: 8 parts; Antioxidant 168: 0.1 part; Extrusion granulation, the method that above-mentioned material is made into table tennis ball is as follows:

[0046] (1) Two yin and yang hemispheres are injection-molded by an injection molding machine;

[0047] (2) bonding the yin and yang hemispheres with an adhesive, and cutting off the excess parts after the adhesive is cured to obtain a ball blank;

[0048] (3) the ball blank is expanded in the mold;

[0049] (4) The table tennis balls that have been puffed are polished in fine sand to obtain finished balls.

Embodiment 3

[0051] Accurately weigh ABSPA-709: 32 parts, HI-121H: 34 parts; K rubber powder: 18 parts; Camphor: 13 parts; Antioxidant 168: 0.1 part, Antioxidant 264: 0.2 part; Toner : 0.2 part, placed in a high-mixer and mixed evenly, extruded and granulated by twin-screw, and the method of making the above-mentioned materials into table tennis balls is as follows:

[0052] (1) Two yin and yang hemispheres are injection-molded by an injection molding machine;

[0053] (2) bonding the yin and yang hemispheres with an adhesive, and cutting off the excess parts after the adhesive is cured to obtain a ball blank;

[0054] (3) the ball blank is expanded in the mold;

[0055] (4) The table tennis balls that have been puffed are polished in fine sand to obtain finished balls.

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PUM

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Abstract

The invention provides a table tennis ball and a preparing method thereof. A shell of the table tennis ball is prepared from ABS resin, K rubber powder and auxiliary materials, wherein the mass ratio of the ABS resin to the K rubber powder is (3-9):1. According to the shell of the table tennis ball, the high-impact-resistance ABS resin serves as the main raw material, the K rubber powder is used for toughening, and therefore the elasticity and the hitting resistance of the prepared table tennis ball are similar to the elasticity and the hitting resistance of a table tennis ball made of celluloid. As an injection molding method is adopted, the preparing technology of the table tennis ball is greatly simplified; meanwhile, waste liquid, waste gas and the like can be avoided, and the evenness of the wall thickness of a ball body is more easily controlled.

Description

technical field [0001] The invention belongs to the field of sporting goods and polymer materials, and relates to a table tennis ball, in particular to a celluloid-free table tennis ball. Background technique [0002] Table tennis balls currently on the market and used in professional competitions are all made of flammable celluloid. Table tennis balls made of celluloid have always been used because of their excellent performance. However, the flammable nature is also an unavoidable drawback. The waste liquid and waste gas generated in the complicated process engineering of preparing table tennis balls have caused great pollution to the environment. [0003] In recent years, the ITTF has been encouraging the use of new materials to make table tennis balls. Many companies and scholars have also been committed to the development of table tennis balls and announced some table tennis balls made of new materials. For example, Patent Publication No. CN1410250 "A Novel Table Tenni...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L101/00C08K5/134C08K5/13C08K5/526
CPCC08L55/02C08L2205/025C08L2205/03C08L101/00C08K5/1345C08K5/526C08K5/13
Inventor 蒋丁科
Owner 杭州胜利体育用品有限公司
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