Unlock instant, AI-driven research and patent intelligence for your innovation.

Automobile oil seal material and preparation method thereof

A technology for oil seals and automobiles, applied in the field of oil seal materials, can solve problems such as unsatisfactory effects and poor oil resistance, and achieve low cost, improved high temperature resistance and oil resistance, and simple process effects

Inactive Publication Date: 2015-11-11
SUZHOU GOODTIME TECH DEV
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there have been a large number of researches on automotive oil seal materials in the prior art, especially involving polytetrafluoroethylene. The high temperature resistance and wear resistance of the obtained materials have been improved to a certain extent, but the effect is still not ideal, and the oil resistance is not strong. Difficult to meet higher requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automobile oil seal material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Party:

[0022] 40 parts of polytetrafluoroethylene, 10 parts of natural rubber, 40 parts of hydrogenated nitrile rubber, 2 parts of silane coupling agent, 20 parts of aramid pulp, 1 part of montmorillonite, 2 parts of octadecyltrimethylammonium chloride 10 parts, 10 parts of carbon black, 3 parts of nano-silica, 10 parts of paraffin, 2 parts of sulfur.

[0023] Preparation:

[0024] (1) Take aramid pulp and montmorillonite, add octadecyltrimethylammonium chloride and a certain amount of acetone, stir at 40°C for 12 hours, remove the acetone, and obtain the initial material;

[0025] (2) Take polytetrafluoroethylene, natural rubber and hydrogenated nitrile rubber, mix with the above-mentioned raw material, then add silane coupling agent, carbon black, nano silicon dioxide and paraffin, fully mix and melt at 60 ° C, to obtain masterbatch;

[0026] (3) Molding the above-mentioned masterbatch, and vulcanizing it with sulfur.

Embodiment 2

[0028] Party:

[0029] 40 parts of polytetrafluoroethylene, 20 parts of natural rubber, 60 parts of hydrogenated nitrile rubber, 8 parts of titanate coupling agent, 40 parts of aramid pulp, 9 parts of montmorillonite, octadecyl trimethyl chloride 6 parts of ammonium, 20 parts of carbon black, 7 parts of nano-silica, 20 parts of paraffin, and 6 parts of sulfur.

[0030] Preparation:

[0031] (1) Take aramid pulp and montmorillonite, add octadecyltrimethylammonium chloride and a certain amount of acetone, stir at 60°C for 24 hours, remove the acetone, and obtain the initial material;

[0032] (2) Take polytetrafluoroethylene, natural rubber and hydrogenated nitrile rubber, mix with the above-mentioned raw materials, then add titanate coupling agent, carbon black, nano-silica and paraffin, fully mix and melt at 80°C to obtain the mother glue;

[0033] (3) Molding the above-mentioned masterbatch, and vulcanizing it with sulfur.

Embodiment 3

[0035] Party:

[0036] 40 parts of polytetrafluoroethylene, 15 parts of natural rubber, 50 parts of hydrogenated nitrile rubber, 5 parts of aluminate coupling agent, 30 parts of aramid pulp, 5 parts of montmorillonite, octadecyl trimethyl chloride 4 parts of ammonium, 15 parts of carbon black, 5 parts of nano-silica, 15 parts of paraffin, and 4 parts of sulfur.

[0037] Preparation:

[0038] (1) Take aramid pulp and montmorillonite, add octadecyltrimethylammonium chloride and a certain amount of acetone, stir at 50°C for 18 hours, remove the acetone, and obtain the initial material;

[0039] (2) Take polytetrafluoroethylene, natural rubber and hydrogenated nitrile rubber, mix with the above-mentioned raw materials, then add aluminate coupling agent, carbon black, nano-silica and paraffin, fully mix and melt at 70 ° C to obtain the mother glue;

[0040] (3) Molding the above-mentioned masterbatch, and vulcanizing it with sulfur.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an automobile oil seal material and a preparation method thereof. The oil seal material is mainly prepared from the following components in parts by weight: 40 parts of polytetrafluoroethylene, 10-20 parts of natural rubber, 40-60 parts of hydrogenated nitrile-butadiene rubber, 2-8 parts of coupling agent, 20-40 parts of aramid fiber pulp, 1-9 parts of montmorillonite, 2-6 parts of octadecyl trimethyl ammonium chloride, 10-20 parts of carbon black, 3-7 parts of nano silicon dioxide, 10-20 parts of paraffin and 2-6 parts of vulcanizing agent. Compared with the prior art, the automobile oil seal material disclosed by the invention has the advantages of simple technique and low cost, and has the advantages in the oil seal material in the prior art. The method can obviously enhance the high temperature resistance and oil resistance of the oil seal material.

Description

technical field [0001] The invention relates to an automobile oil seal material and a preparation method thereof, belonging to the technical field of oil seal materials. Background technique [0002] In the rotary motion sealing device of mechanical equipment, oil seal is widely used to prevent the leakage of working medium and prevent the intrusion of dust, water and air into the working body. According to the structural characteristics, the oil seal is a kind of lip seal ring. Because of its wide variety and its lip has greater resilience, it is another category from the lip seal ring; the sealing principle of the oil seal is based on the Between the oil seal and the shaft, there is a hydrodynamic oil film controlled by the oil seal edge, and a lubricating oil film with fluid lubrication characteristics exists. The rigidity of the oil film is just so that the contact end of the oil film and air is under the action of the liquid surface tension. Commonly used materials for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L27/18C08L7/00C08L77/10C08L91/06C08K13/02C08K3/34C08K5/19C08K3/04C08K3/36C08J3/24
Inventor 周波
Owner SUZHOU GOODTIME TECH DEV