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Table tennis racket pimples-out rubber composition

A table tennis racket and composition technology, applied in the field of positive rubber, can solve the problems of shortened service life, reduced strength and elongation, and easy damage of particles, so as to achieve the effect of stable hitting and fast returning speed

Active Publication Date: 2017-02-08
YANCHENG AST SPORTING GOODS
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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; Technical requirements, balancing high elasticity and high hardness is a major difficulty in the design of rubber compositions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of table tennis racket positive glue rubber composition, and it comprises the raw material component of following parts by weight:

[0029] Natural rubber 50g;

[0030] Trans-1,4-polyisoprene rubber 30g;

[0031] 40g of butadiene rubber; (natural rubber, trans-1,4-polyisoprene rubber, and butadiene rubber are available conventionally);

[0032] Polyvinylimidazole (number average molecular weight 10000) 30g;

[0033] Polyacrylonitrile (number average molecular weight 10000) 10g;

[0034] Polymethyl methacrylate (number average molecular weight 10000) 10g;

[0035] Hydroxy acrylic resin (number average molecular weight 10000) 20g;

[0036] Zinc carbonate 10g;

[0037] 2,2'-dithiodibenzothiazole 2g;

[0038] Sulfur 1g;

[0039] 2,6-di-tert-butyl-p-cresol 2g;

[0040] Nanoscale titanium dioxide 10g.

[0041] The preparation method of above-mentioned table tennis racket positive rubber composition, comprises the following steps...

Embodiment 2

[0045] This embodiment provides a kind of table tennis racket positive glue rubber composition, and its preparation method is consistent with that in embodiment 1, and difference is, it comprises the raw material component of following parts by weight:

[0046] Natural rubber 80g;

[0047] Trans-1,4-polyisoprene rubber 10g;

[0048] Butadiene rubber 10g;

[0049] Polyvinylimidazole (number average molecular weight 100000) 10g;

[0050] Polyacrylonitrile (number average molecular weight 100000) 5g;

[0051] Polymethyl methacrylate (number average molecular weight 100000) 5g;

[0052] Hydroxy acrylic resin (number average molecular weight 100000) 10g;

[0053] Zinc oxide 5g;

[0054] 2-mercaptobenzothiazole 0.1g;

[0055] Sulfur 0.1g;

[0056] 2,2,4-trimethyl-1,2-dihydroquinoline polymer 0.1g;

[0057] Nanoscale barium sulfate 5g.

Embodiment 3

[0059] This embodiment provides a kind of table tennis racket positive glue rubber composition, and its preparation method is consistent with that in embodiment 1, and difference is, it comprises the raw material component of following parts by weight:

[0060] Natural rubber 60g;

[0061] Trans-1,4-polyisoprene rubber 20g;

[0062] Butadiene rubber 20g;

[0063] Polyvinylimidazole (number average molecular weight 75000) 20g;

[0064] Polyacrylonitrile (number average molecular weight 75000) 8g;

[0065] Polymethyl methacrylate (number average molecular weight 75000) 8g;

[0066] Hydroxy acrylic resin (number average molecular weight 75000) 15g;

[0067] Stearic acid 8g;

[0068] Diphenylguanidine 1g;

[0069] Sulfur 0.5g;

[0070] 0.5 g of 2,6-di-tert-butyl-p-cresol.

[0071] The table tennis racket positive rubber composition prepared in the above examples was subjected to a performance test, and the specific data are listed in Table 1.

[0072] Table 1 Table tennis...

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PUM

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Abstract

The invention relates to a table tennis racket rubber pimples-out rubber composition comprising the following raw material components in parts by weight: 50-80 parts of natural rubber, 10-30 parts of trans-1,4-polyisoprene rubber, 10-40 parts of butadiene rubber, 10-30 parts of polyvinylimidazole, 5-10 parts of polyacrylonitrile, 5-10 parts of polymethylmethacrylate, 10-20 parts of hydroxyl acrylic resin, 5-10 parts of a vulcanizing activator, 0.1-2 parts of a vulcanizing accelerator, 0.1-1 part of sulfur, and 0.1-2 parts of an anti-aging agent. Through the use of the formula formed by the natural rubber, 10-30 parts of trans-1,4-polyisoprene rubber, butadiene rubber, polyvinylimidazole and other substances, the elasticity and hardness of prepared rubber achieve a good balance, so as to be conducive to athletes to play technical expertise of fast ball returning speed, stable ball batting, spinning balls easily catching and the like.

Description

technical field [0001] The invention relates to a positive rubber rubber, in particular to a positive rubber composition for a table tennis racket. 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. It is suitable for fast attack near the table, especially the left The push right attack style is one of the most commonly used rubber types for straight fast break 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 the service life will be shortened; Technical requirements, balancing high elasticity and high hardness is a major dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L39/04C08L33/20C08L33/12C08K13/02C08K3/30C08K3/22C08K3/26C08K5/09C08K5/47C08K5/40
CPCC08L7/00C08L2205/025C08L2205/035C08L9/00C08L39/04C08L33/20C08L33/12C08K13/02C08K2003/3045C08K2003/2241C08K2003/2227C08K3/26C08K2003/2296C08K5/09C08K5/47C08K5/40
Inventor 王旭升高焱汤小庆刘宗英黄田富
Owner YANCHENG AST SPORTING GOODS