Low-temperature-resistant salt-spray-resistant rubber sealing material and preparation method thereof

A technology of rubber sealing and salt spray resistance, which is applied in the field of rubber sealing materials, can solve problems that do not involve meeting the salt spray resistance performance, and achieve the effects of improving weather resistance, low temperature resistance and crosslinking state

Inactive Publication Date: 2020-04-14
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent improves the low-temperature performance of the rubber composition by adding sebacate and adipate as plasticizers, which are used in the preparation of oil-resistant and ozone-resistant products in the automotive industry, but it does not involve meeting the requirements for resistance to use in polar marine environments. Salt spray performance

Method used

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  • Low-temperature-resistant salt-spray-resistant rubber sealing material and preparation method thereof
  • Low-temperature-resistant salt-spray-resistant rubber sealing material and preparation method thereof
  • Low-temperature-resistant salt-spray-resistant rubber sealing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A low temperature and salt spray resistant rubber sealing material, the components of which are shown in Table 1.

[0040]The rubber sealing material of table 1 embodiment 1 is calculated by mass parts

[0041]

[0042]

[0043] The preparation method of the rubber sealing material comprises an open mill plasticating process, an internal mixer mixing process, an open mill mixing process and a vulcanization process, specifically comprising the following steps:

[0044] Step 1, open mill masticating: Weigh each component according to the above ratio, fully masticate the rubber matrix (hydrogenated nitrile rubber) on the double-roller open mill, turn on the cooling water, beat the roller distance to the minimum, thin Pass 6 to 8 times, increase the roller distance, and make 6 to 8 triangle bags.

[0045] Step 2, internal mixer mixing: (1) Put the hydrogenated nitrile rubber, zinc oxide, stearic acid, and anti-aging agent after mastication into the internal mixer for...

Embodiment 2

[0051] A low temperature and salt spray resistant rubber sealing material, the components of which are shown in Table 2.

[0052] The rubber sealing material of table 2 embodiment 2 is calculated by mass parts

[0053]

[0054]

[0055] The preparation method of this rubber sealing material comprises the steps:

[0056] Step 1, open mill mastication: take each component according to the above ratio, fully carry out mastication on the rubber matrix (nitrile rubber, hydrogenated nitrile butadiene rubber) on the double-roller open mill, turn on the cooling water, and beat the roller distance To the minimum, thin pass 6 to 8 times, increase the roller distance, and then make 6 to 8 triangle bags.

[0057] Step 2, internal mixer mixing: (1) Put the plasticized rubber base, zinc oxide, stearic acid, anti-aging agent (anti-aging agent 445, anti-aging agent 4010NA) into the internal mixer to carry out a internal mixing, control The rotor speed is 20-40 rpm, banburying for 2 mi...

Embodiment 3

[0063] A low temperature and salt spray resistant rubber sealing material, the components of which are shown in Table 3.

[0064] The rubber sealing material of table 3 embodiment 3 is calculated by mass parts

[0065]

[0066] The preparation method of this rubber sealing material comprises the steps:

[0067] Step 1, open mill masticating: Weigh each component according to the above ratio, fully masticate the rubber matrix (hydrogenated nitrile rubber) on the double-roller open mill, turn on the cooling water, beat the roller distance to the minimum, thin Pass 6 to 8 times, increase the roller distance, and make 6 to 8 triangle bags.

[0068] Step 2, internal mixer mixing: (1) Put the masticated hydrogenated nitrile rubber, zinc oxide, stearic acid, anti-aging agent (anti-aging agent 4010NA, anti-aging agent ODA) into the internal mixer for one internal mixing , control the rotor speed to 20-40 rpm, banbury for 2 minutes, and control the temperature below 80°C;

[0069...

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Abstract

The invention discloses a low-temperature-resistant salt-spray-resistant rubber sealing material and a preparation method thereof. The invention belongs to the technical field of rubber sealing materials. The sealing material comprises the following components in parts by mass: 100 parts of a rubber matrix, 3-5 parts of zinc oxide, 0.5-3 parts of stearic acid, 10-40 parts of montmorillonite, 5-50parts of carbon black, 0.5-3 parts of an anti-aging agent, 5-20 parts of a plasticizer, 1.5-3 parts of an accelerant, and 0-10 parts of a vulcanizing agent and an auxiliary of the vulcanizing agent. The raw materials are subjected to an open mill plastication process, an internal mixer mixing process, an open mill mixing process and a vulcanization process to prepare the rubber sealing material, and the rubber sealing material has low-temperature resistance and salt spray resistance and can meet the requirements of deck mechanical sealing and low-temperature pipeline system oil-resistant sealing on polar ships.

Description

technical field [0001] The invention relates to the technical field of rubber sealing materials, in particular to a low-temperature and salt-spray resistant rubber sealing material and a preparation method thereof. Background technique [0002] Following the development of machinery and other industries, the amount and variety of rubber sealing products continue to increase. Nowadays, rubber sealing products can be seen in many fields such as machinery, ships, construction, automobiles and aerospace, and its wide application is self-evident. As a basic component of a mechanical device, once a problem occurs, it will affect the operation of the entire device. Rubber sealing materials mainly use the characteristics of rubber elasticity, permeability resistance, corrosion resistance and aging resistance to achieve the purpose of sealing. Whether the rubber sealing material can achieve the sealing effect mainly depends on two aspects: one is the structural design, and the othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L15/00C08K13/06C08K3/34C08K5/11C08K5/12C08K5/14
CPCC08K3/22C08K3/346C08K5/09C08K5/11C08K5/12C08K13/06C08K2003/2296C08K2201/003C08K2201/014C08L9/02C08L2203/18C08L15/005
Inventor 石磊王兵李景瑞丁亮
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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