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A kind of chloroprene rubber damping gasket material and preparation method thereof

A technology of neoprene and vibration damping pads, which is applied in the field of rubber materials, can solve the problems of poor aging resistance, aging, and poor quality, and achieve good high and low temperature resistance, excellent weather resistance, and long service life.

Inactive Publication Date: 2018-10-12
安徽华润仪表线缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, vibration damping gaskets are greatly affected by the ambient climate because they are often exposed to the air.
At the same time, with the movement of the car, great pressure will be generated on the radial surface of the damping pad, which will easily cause the shock pad to deform, age or even crack, thereby affecting the damping effect and causing the vehicle to vibrate. Even frequent replacement of shock absorbing pads will increase the cost and cause inconvenience to users
Rubber shock absorbing pads are prone to cracks due to the heat generated by friction during use, which is not conducive to the service life of rubber shock absorbing pads
[0004] Most of the vibration damping gaskets in the existing technology are made of natural rubber or styrene-butadiene rubber or cis-butadiene rubber. The hardness of the rubber is relatively high, the compressive stress is relatively large, and the shock-absorbing effect is poor.
Because the above-mentioned rubber is not resistant to ozone and weather, and has poor compression set performance, poor aging resistance and weak vibration damping performance, it is difficult to apply to special working conditions.
For this reason, a kind of rubber damping gasket that can solve the above problems is needed, and how to develop a rubber vibration damping gasket and its preparation method, so that the gasket has moderate vibration damping hardness, high strength and large elongation , ozone aging resistance, weather aging resistance, moderate compressive stress value, in order to improve the balance, comfort and durability of automobile driving, this has become a technical problem to be solved urgently in this technical field

Method used

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  • A kind of chloroprene rubber damping gasket material and preparation method thereof
  • A kind of chloroprene rubber damping gasket material and preparation method thereof
  • A kind of chloroprene rubber damping gasket material and preparation method thereof

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preparation example Construction

[0032] In the specific implementation process, refer to figure 1 , the preparation method of above-mentioned chloroprene rubber damping gasket material comprises the steps:

[0033] S1. Put the chloroprene rubber into the internal mixer and masticate evenly, then add light calcium, stearic acid, anti-aging agent, anti-aging additive, accelerator, vulcanization additive, carbon black, coumarone resin, and operating oil in sequence , mixed evenly, discharged, and cooled to obtain the masterbatch;

[0034] S2, put the masterbatch obtained in S1 into the open mill, add sulfur, mix evenly, release the sheet, cool, and obtain the final rubber mix;

[0035] S3. Put the final mixed rubber obtained in S2 into a mold of a vulcanizer, vulcanize, cool to room temperature after vulcanization, and demould to obtain the neoprene vibration damping gasket material.

Embodiment 1

[0038] A kind of chloroprene rubber damping gasket material, its raw material comprises by weight:

[0039]

[0040]

[0041] Wherein, the chloroprene rubber is prepared by emulsion copolymerization of 100 parts by weight of chloroprene and 2 parts of vinyl chloride; the saturated hydrocarbon content in the naphthenic oil is 91%, and the aromatic hydrocarbon content is 8.6%.

[0042] In the present embodiment 1, the preparation method of above-mentioned chloroprene rubber damping gasket material comprises the steps:

[0043] S1. Put the chloroprene rubber into the internal mixer and masticate at 80°C for 45 minutes, then add light calcium, stearic acid, anti-aging agent, accelerator, carbon black, coumarone resin, and operating oil in sequence, and heat at 90°C Down mixing 25min, discharging, cooling to obtain masterbatch;

[0044] S2. Put the masterbatch obtained in S1 into an open mill, add sulfur, knead at 40°C for 20 minutes, release the sheet, and cool to obtain th...

Embodiment 2

[0047] A kind of chloroprene rubber damping gasket material, its raw material comprises by weight:

[0048]

[0049]

[0050] Wherein, the chloroprene rubber is prepared by emulsion copolymerization of 100 parts by weight of chloroprene and 30 parts of vinyl chloride; the saturated hydrocarbon content in the naphthenic oil is 96%, and the aromatic hydrocarbon content is 3%.

[0051] In the present embodiment 2, the preparation method of above-mentioned chloroprene rubber damping gasket material comprises the steps:

[0052] S1. Put the chloroprene rubber into the internal mixer and masticate at 100°C for 35 minutes, then add light calcium, stearic acid, anti-aging agent, anti-aging additive, accelerator, vulcanization additive, carbon black, coumarone Resin and process oil were mixed at 110°C for 15 minutes, discharged, and cooled to obtain a masterbatch;

[0053] S2. Put the masterbatch obtained in S1 into an open mill, add sulfur, knead at 60°C for 10 minutes, release...

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Abstract

The invention discloses a neoprene vibration reduction gasket material which comprises, by weight parts, 9-18 parts of neoprene, 4-10 parts of carbon black, 4-10 parts of light calcium carbonate, 0.1-0.3 part of stearic acid, 0.2-0.4 part of accelerant, 0.1-0.3 part of anti-aging agent, 0-0.2 part of anti-aging auxiliaries, 0.1-0.2 part of sulfur, 0-0.1 part of vulcanizing agent, 0.5-1 part of Coumarone-indene resin and 2-6 parts of operating oil. The neoprene vibration reduction gasket material has a good vibration reduction effect and excellent weather resistance and is high in radial strength, moderate in hardness, good in elasticity, long in service life, high in production efficiency and low in cost. In addition, the invention further discloses a method for preparing the neoprene vibration reduction gasket material.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a neoprene rubber damping gasket material and a preparation method thereof. Background technique [0002] Vibration-absorbing rubber products are often used in industrial production departments such as railway transport vehicles, automobiles, machinery, etc., which absorb or reduce the vibration generated by movement through the high damping effect of the product, so as to achieve the purpose of vibration reduction. Damping gaskets are the most common damping rubber products. For example, when an automobile engine is working, the reciprocating motion of the piston in the cylinder, the combustion of fuel in the cylinder, and the movement of other moving parts with the piston rod will cause the engine to vibrate violently. . If the engine is directly connected to the chassis, the chassis will also vibrate, affecting the handling and comfort of the car. The vibration damp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L11/00C08K13/02C08K3/04C08L91/06C08K5/40C08K3/22C08K3/26C08K5/09C08L45/02
Inventor 丁云龙丁筱军
Owner 安徽华润仪表线缆有限公司
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