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Table tennis racket short pimple rubber with good resilience

A table tennis racket and resilience technology, applied in the field of positive rubber, can solve the problems of reduced strength and elongation, easy damage to particles, and shortened service life, so as to improve strength and toughness, ensure service life, and return the ball quickly. Effect

Inactive Publication Date: 2019-06-28
江苏木克体育器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the proportion of butadiene rubber is too large, the hardness, strength and elongation of the rubber will be reduced, the particles will be easily damaged, and the service life will be shortened.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of formula of positive rubber of table tennis racket with good resilience, its raw material comprises the following components by weight: 90.5 parts of natural rubber, 10.8 parts of trans-1,4-polyisoprene rubber, 10.6 parts of butadiene rubber , 5.2 parts of polyacrylonitrile, 5.1 parts of polymethyl methacrylate, 5.2 parts of vulcanization activator, 0.1 part of vulcanization accelerator, 0.1 part of sulfur powder, 12.3 parts of stearic acid, 1.3 parts of antioxidant, 0.1 part of graphite powder, quartz 0.5 parts of powder, 2.3 parts of high-resistant dibutyl sebacate, 7.5 parts of additives.

[0022] The additive is a mixture of fiber and resin, and the weight ratio of fiber and resin is 1.5:3.4.

[0023] The length of the fiber is 2 cm, and the fiber is carbon fiber.

[0024] The vulcanization activator is a mixture of zinc oxide and stearic acid.

[0025] The fineness of the sulfur powder is 700 mesh, and the moisture content of the sulfur powder is less th...

Embodiment 2

[0035] A kind of formula of positive rubber of table tennis racket with good resilience, its raw material comprises the following components by weight: 92.5 parts of natural rubber, 10.9 parts of trans-1,4-polyisoprene rubber, 19.7 parts of butadiene rubber , 7.4 parts of polyacrylonitrile, 7.2 parts of polymethyl methacrylate, 7.3 parts of vulcanization activator, 1.3 parts of vulcanization accelerator, 0.9 parts of sulfur powder, 13.1 parts of stearic acid, 1.5 parts of antioxidant, 0.2 parts of graphite powder, quartz 0.7 parts of powder, 2.7 parts of high-resistant dibutyl sebacate, 7.9 parts of additives.

[0036] The additive is a mixture of fiber and resin, and the weight ratio of fiber and resin is 1.5:3.4.

[0037] The length of the fiber is 3 centimeters, and the fiber is one of carbon fiber, nylon fiber, lignin fiber and viscose fiber.

[0038] The vulcanization active agent is a mixture of zinc carbonate and zinc oxide.

[0039] The fineness of the sulfur powder ...

Embodiment 3

[0049] A kind of formula of positive rubber of table tennis racket with good resilience, its raw material comprises the following components by weight: 97.4 parts of natural rubber, 11.5 parts of trans-1,4-polyisoprene rubber, 32.5 parts of butadiene rubber , 7.5 parts of polyacrylonitrile, 7.8 parts of polymethyl methacrylate, 8.3 parts of vulcanization activator, 1.3 parts of vulcanization accelerator, 0.7 parts of sulfur powder, 13.5 parts of stearic acid, 1.7 parts of antioxidant, 0.3 parts of graphite powder, quartz 0.8 parts of powder, 3.2 parts of high-resistant dibutyl sebacate, 8.2 parts of additives.

[0050] The additive is a mixture of fiber and resin, and the weight ratio of fiber and resin is 1.5:3.4.

[0051] The length of the fibers is 3 cm, and the fibers are lignin fibers.

[0052] The vulcanization activator is a mixture of zinc carbonate and stearic acid.

[0053] The fineness of the sulfur powder is 900 mesh, and the moisture content of the sulfur powder i...

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Abstract

The invention discloses a formula of table tennis racket short pimple rubber with good resilience. The rubber is prepared from the following raw materials in parts by weight: 90.5-98.9 parts of natural rubber, 10.8-12.1 parts of trans-1,4-polyisoprene rubber, 10.6-40.4 parts of butadiene rubber, 5.2-10.9 parts of polyacrylonitrile, 5.1-10.7 parts of polymethyl methacrylate, 5.2-10.8 parts of vulcanizing activator, 0.1-2.3 parts of vulcanization accelerator, 0.1-1.5 parts of sulfur powder, 12.3-15.1 parts of stearic acid, 1.3-2.3 parts of an anti-aging agent, 0.1-0.4 part of graphite powder, 0.5-0.9 part of quartz powder and 2.3-3.7 parts of high-resistance dibutyl sebacate. According to the formula, the elasticity and hardness of the rubber can reach excellent balance to favor high speed return speed of athletes, the hardness, strength and elongation of the rubber can meet requirement to ensure the service life; the mixture of fibers and resin serving as additives can form a rubber compound with a reticular structure since the fibers are added to combine with the rubber, and the whole strength and toughness can be improved since the fibers achieve a certain connection effect in therubber compound; and the whole strength and toughness can be further improved since a certain amount of resin is added to synergize with the fibers.

Description

technical field [0001] The invention relates to the technical field of positive rubber, in particular to a positive rubber for a table tennis racket with good resilience. Background technique [0002] The normal rubber of table tennis rackets is also called short-grain rubber. It should have high resilience and hardness, which is conducive to athletes to play the technical advantages of fast return speed, stable hitting, and no spin. Requirements, the particles are not easy to be damaged, and the service life is guaranteed. It is suitable for fast attack near the table, especially the left push and right attack style. It is one of the most commonly used rubber types for straight fast attack players. Generally, natural rubber is used and butadiene rubber with better elasticity is used as the base material. However, if the proportion of butadiene rubber is too large, the hardness, strength and elongation of the rubber will be reduced, the particles will be easily damaged, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L33/20C08L33/12C08L97/02C08L77/00C08L1/02C08K13/04C08K13/02C08K5/09C08K3/04C08K3/36C08K5/11C08K5/13C08K7/06
Inventor 侍太兵侍浩
Owner 江苏木克体育器材有限公司
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