A kind of high-performance rubber for generator shock absorber and its preparation process

A technology for shock-absorbing pads and generators, which is applied in the field of high-performance rubber for shock-absorbing pads of generators and its preparation process, can solve the problem of low breaking strength and elongation at break, high hardness of shockproof rubber compositions, and enhanced comprehensive performance. limited and other problems, to achieve the effect of increasing Shore hardness, improving anti-aging properties, and good and stable mechanical properties

Active Publication Date: 2015-12-09
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The obtained anti-vibration rubber composition has high hardness, low breaking strength and elongation at break, and limited comprehensive performance enhancement

Method used

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  • A kind of high-performance rubber for generator shock absorber and its preparation process
  • A kind of high-performance rubber for generator shock absorber and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation process of high-performance rubber for generator damping pads includes the following steps:

[0030] ①Pre-mixing: Use an appropriate amount of xylene solution as a solvent. After heating to 80°C, add 0.5 part of m-phenylenediamine. After it is completely dissolved, add 0.5 part of accelerator BMI. After stirring for 5 minutes at 90°C, the xylene Evaporate it, and then dry it in an oven at 60°C for 5 minutes, then pulverize it into powder with a grinder for use;

[0031] ②Mixing: To 100 parts of natural rubber, add 0.1 part of peptizing agent DBD, squeeze it on a double-roller mill for 5 times, then add 4 parts of 100 mesh zinc oxide and 0.9 parts of hard Fatty acid, 0.2 parts of anti-scorching agent CTP, and 28 parts of spray carbon black are added for mixing. The mixing temperature of the front roll is 55℃, and the mixing temperature of the back roll is 50℃. After the mixing is uniform, the sheet is discharged;

[0032] ③Vulcanization: Put the kneaded film into...

Embodiment 2

[0034] Based on the process of Example 1, the following formula and process parameters were changed: in the pre-mixing step, 0.55 parts of meta-phenylenediamine and 0.55 parts of accelerator BMI were used, and stirred at 90°C for 6 minutes; in the mixing step, 0.15 parts were used Peptizer DBD, 4.5 parts of 100 mesh zinc oxide, 1 part of stearic acid, 0.25 part of scorch inhibitor CTP, and 30 parts of spray carbon black for mixing. The mixing temperature of the front roller is 57℃, and the mixing temperature of the rear roller is 57℃. The temperature is 52°C; in the vulcanization step, 3 parts of the vulcanizing agent DCP are added and vulcanized at 170°C under normal pressure for 27 minutes to obtain the desired product.

Embodiment 3

[0036] On the basis of the process of Example 1, the following formula and process parameters were changed: in the pre-mixing step, 0.6 parts of meta-phenylenediamine and 0.6 parts of accelerator BMI were used, and stirred at 90°C for 7 minutes; in the mixing step, 0.2 part was used Peptizer DBD, 5 parts of 100 mesh zinc oxide, 1.1 parts of stearic acid, 0.3 parts of anti-scorching agent CTP, and 32 parts of spray carbon black for mixing. The mixing temperature of the front roller is 60℃, and the mixing temperature of the rear roller is 60℃. The temperature is 55°C; in the vulcanization step, 3.5 parts of vulcanizing agent DCP are added, and vulcanized at 175°C under normal pressure for 30 minutes to obtain the desired product.

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Abstract

The invention discloses high-performance rubber for a generator shock pad and a preparation process thereof. Raw materials of the rubber comprise: natural rubber, DBD (Dibromodulcitol), 100-mesh zinc oxide, stearic acid, CTP (Cytidine Triphosphate), spraying carbon black, DCP (Dicalcium Phosphate), BMI (Bismaleimide Resin), TMTD (Thiram), CZ (Citrazinic Acid), m-phenylenediamine and bisphenol A type epoxy resin; and the preparation process comprises: premixing, mixing and vulcanizing. A rubber material is fully activated by mixing to improve the heat resistance, aging resistance and deformation resistance of the rubber material, the m-phenylenediamine and the BMI are pre-mixed before the vulcanizing procedure to improve the toughness of the BMI, the bisphenol A type epoxy resin is added with the m-phenylenediamine, the three components are compatible and perforative to improve the shearing strength and the aging resistance of the rubber, the CZ and the TMTD are added to further improve the curing speed and the scorch resistance, and the finally obtained rubber has good breaking strength and breaking elongation, proper hardness, excellent high temperature resistance and good damping effect.

Description

Technical field [0001] The invention belongs to the technical field of the production of rubber for damping pads of generators, and specifically relates to a high-performance rubber for damping pads of generators and a preparation process thereof. Background technique [0002] With the rapid development of modern industry, the power of generators has become larger and larger, and the hazards of vibration and noise have become more and more prominent. Currently, the widely used method is to use rubber materials and framework materials (such as metal, fiber, engineering plastics, etc.) Composite shock absorbers or special rubber viscoelastic high-damping materials can eliminate vibration shocks from vibration sources and absorb noise. Generators generate a lot of heat due to long-term work. Therefore, the rubber used for shock absorbers of generators is required to have high strength, High elongation, high wear resistance, high temperature resistance, avoid thermal aging, but the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L63/02C08K13/02C08K3/22C08K5/09C08K3/04C08K5/18C08K5/372C08K5/14C08K5/3415C08K5/47C08K5/40B29B7/72B29C35/02
Inventor 王冠瑞
Owner STATE GRID CORP OF CHINA
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