High-modulus rubber compound and high-load synchronous belt

A rubber composition, high modulus technology, used in the field of belt transmission equipment, can solve the problem of poor adhesion performance, fatigue performance, compression permanent deformation and elasticity of the tensile body cord and tooth cloth, neoprene rubber Problems such as deterioration of material process performance, inability to perform normal processing, etc., to achieve the effects of not being prone to local stress accumulation, improving hardness, and being easy to process

Inactive Publication Date: 2017-03-15
上海翎宝传动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to achieve such a high tensile modulus for neoprene rubber, it needs to be filled with a large amount of reinforcing fillers such as reinforcing carbon black, which will deteriorate the process performance of the neoprene rubber compound, such as short scorch time and heat generation. Yamato Mooney high viscosity and other shortcomings, can not be processed normally
In addition, even if such a large amount of reinforcing carbon black is filled to increase the tensile modulus, its adhesive performance with the tensile body cord and tooth cloth, fatigue performance, compression set and elasticity will deteriorate, and it is impossible to obtain Timing belt with long service life

Method used

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  • High-modulus rubber compound and high-load synchronous belt
  • High-modulus rubber compound and high-load synchronous belt
  • High-modulus rubber compound and high-load synchronous belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A high-load timing belt 1, wherein the rubber composition of the teeth 2 and the belt back 4 are both:

[0054] Neoprene CR121 100 parts;

[0055] 4 parts of magnesium oxide;

[0056] 0.5 parts of stearic acid;

[0057] Anti-aging agent ODA 2 parts;

[0058] Carbon black N550 35 parts;

[0059] 5 parts aromatic oil;

[0060] 30 parts of SL-2101 phenolic reinforcing resin;

[0061] 3 parts of cross-linking agent HMT;

[0062] 2 parts of N,N'-m-phenylene bismaleimide (PDM);

[0063] Zinc oxide 5

[0064] Accelerator TMTD 2

Embodiment 2

[0066] A high-load timing belt 1, wherein the rubber composition of the teeth 2 and the belt back 4 are both:

[0067] Neoprene CR121 100 parts;

[0068] 4 parts of magnesium oxide;

[0069] 0.5 parts of stearic acid;

[0070] Anti-aging agent ODA 2 parts;

[0071] Carbon black N550 35 parts;

[0072] 5 parts aromatic oil;

[0073] 20 parts of SL-2101 phenolic reinforcing resin;

[0074] 2 parts of cross-linking agent HMT;

[0075] 4 parts of N,N'-m-phenylene bismaleimide (PDM);

[0076] Zinc oxide 5

[0077] Accelerator TMTD 2

Embodiment 3

[0079] A high-load timing belt 1, wherein the rubber composition of the teeth 2 and the belt back 4 are both:

[0080] Neoprene CR121 100 parts;

[0081] 4 parts of magnesium oxide;

[0082] 0.5 parts of stearic acid;

[0083] Anti-aging agent ODA 2 parts;

[0084] Carbon black N550 35 parts;

[0085] 5 parts aromatic oil;

[0086] 15 parts of SL-2101 phenolic reinforcing resin;

[0087] 1.5 parts of cross-linking agent HMT;

[0088] 7 parts of N,N'-m-phenylene bismaleimide (PDM);

[0089] Zinc oxide 5

[0090] Accelerator TMTD 2

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Abstract

The invention discloses a high-modulus rubber compound and a high-load synchronous belt. The scorching time of rubber is prolonged, and the Mooney viscosity of the rubber is reduced, so that the rubber can be better mixed evenly and can be smoothly calendered and formed, the mobility of the rubber in sulfurization is increased, tooth filling is easier, the obtained synchronous belt has better integrated uniformity, the local stress aggregation phenomenon is difficult to occur, the anti-shearing strength of teeth of the synchronous belt and the tooth jumping prevention capability of the belt can be enhanced, and thus the loading capability of the synchronous belt is effectively improved and the service life of the synchronous belt is prolonged.

Description

technical field [0001] The invention relates to the technical field of belt transmission equipment, in particular to a high-modulus rubber composition and a high-load synchronous belt. Background technique [0002] Synchronous belt transmission is a transmission mode developed by combining the advantages of belt transmission and gear transmission on the basis of chain transmission, and has the advantages of belt transmission, gear transmission and chain transmission. The outstanding advantages of synchronous belt transmission are: the belt and the pulley are strictly synchronized, there is no relative slip, which ensures an accurate transmission ratio; the backlash is small; the pre-tightening force is small, the load on the shaft and bearing is small; the unit length of the belt is small. , high allowable line speed; high transmission efficiency; good shock absorption capacity, stable transmission, low noise; compact structure, good wear resistance, no maintenance and lubri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L61/06C08L91/00C08L77/10C08K13/02C08K3/22C08K5/09C08K5/3415C08K3/04C08K3/36F16G5/04
CPCC08L11/00C08L2205/03C08L2205/035C08L2205/16F16G5/04C08L61/06C08L91/00C08K13/02C08K2003/222C08K5/09C08K2003/2296C08K5/3415C08K3/04C08L77/10C08K3/36
Inventor 刘建波章志成其他发明人请求不公开姓名
Owner 上海翎宝传动科技有限公司
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