Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Surface treatment agent for vulcanized rubber

一种表面处理剂、硫化橡胶的技术，应用在橡胶层状产品、化学仪器和方法、合成树脂层状产品等方向，能够解决涂膜剥落等问题，达到抑制沉降、提高操作性、抑制变形的效果

Active Publication Date: 2017-08-29
NOK CORP
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this method does not contain fluororesins such as polytetrafluoroethylene, there is a problem that the coating film will peel off due to adhesion during high-temperature compression or friction and wear under high surface pressure.

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
  • Surface treatment agent for vulcanized rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] PTFE resin particles (AGC Semichemical product Fluon 172J, 22 parts by weight

[0053] Particle size is 0.2μm)

[0054] Oligomer-based fluorosurfactant (same company product Surflon S-611) 4 ″

[0055] 1,2-polybutadiene containing NCO group (Nippon Soda products TP-1001, 98 ″

[0056] butyl acetate solution with a solid content concentration of 50% by weight)

[0057] Butyl acetate [AcOBu] 876″

[0058] A surface treatment agent (1000 parts by weight in total) containing the above various components was prepared, and measurements and evaluations of the following items were performed.

[0059] Solution stability: A surface treatment agent was prepared in a glass container, and the presence or absence of sedimentation was visually checked over time.

[0060] (Evaluation) ○: No settlement

[0061] △: Settled after a long time

[0062] ×: immediate settlement

[0063] Adhesive hardness: On a metal plate, only the adhesive component of the coating agent (excluding the...

Embodiment 2

[0079] In Example 1, the amount of 1,2-polybutadiene containing NCO groups was changed to 77 parts by weight, the amount of butyl acetate was changed to 868 parts by weight, and 29 parts by weight of fluorine resin containing OH groups were used. Composition solution (DIC product Defensa TR-103, solution with OH value of 4.1 mgKOH / g, MEK-AcOBu-MEK mixed solvent solution with a solid content concentration of 30% by weight).

Embodiment 3

[0081] In Example 1, the amount of PTFE resin particles was changed to 21 parts by weight, the amount of 1,2-polybutadiene containing NCO groups was changed to 90 parts by weight, and the amount of butyl acetate was changed to 878 parts by weight, and then 8 parts by weight of silicone oil (Shin-Etsu Silicone product KF-96H 1 million cs) was 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
Login to View More

PUM

PropertyMeasurementUnit
softening pointaaaaaaaaaa
particle diameteraaaaaaaaaa
surface tensionaaaaaaaaaa
Login to View More

Abstract

A surface treatment agent for vulcanized rubber, comprising an organic solvent solution containing fluororesin particles in a ratio of 10-160 parts by weight with respect to 100 parts by weight in terms of solid content of a 1,2-polybutadiene containing an isocyanate group, the organic solvent solution using as a dispersing agent 2.5-20 parts by weight of a fluorine-containing surfactant based on an oligomer containing a perfluoroalkyl group. This surface treatment agent for vulcanized rubber has enhanced liquid stability of the organic solvent solution and enhances product torque evaluation and additional hardness and abrasion resistance overall in a coating film formed therefrom, and is effective for use as a coating agent or the like a seal lip part of an oil seal.

Description

technical field [0001] The present invention relates to a surface treatment agent for vulcanized rubber. More specifically, it relates to a surface treatment agent for vulcanized rubber capable of further improving the hardness of the entire coating film, abrasion resistance, and product torque evaluation. Background technique [0002] Conventionally, a coating film of graphite or fatty acid has been formed on the rubber layer of a rubber-coated metal gasket or on the surface of a rubber elastic body sliding part such as a bearing seal or an oil seal to prevent sticking, prevent sticking, and improve wear resistance. Metal salts or amides, waxes such as paraffin, silicone oil, etc., or coating films containing ethyl cellulose, phenolic resin, etc. as binders. Engine gaskets, etc. are used under high surface pressure and high temperature conditions. If the vibration of the engine is added to this, the rubber coating on the surface of the gasket will be worn, and air leakage ...

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): C08L15/00C08L27/12C08L83/04C09D7/12C09D109/00C09D127/12C09D175/04F16J15/3204
CPCC09D109/00C09D175/04C08L15/00C08L27/12C08L83/04F16J15/3204C08G18/69C08G18/10C08G18/6279C09D7/40C09D127/12C08G18/62B32B25/16B32B27/26C08F214/18C08K3/34C08L15/02C08L2666/06C08L2666/32C08K5/02C08L27/18
Inventor 木村奈津美阿部克己
Owner NOK CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com