Polyoxyalkylene Glyceryl Ether Release Agent for Rubber Molding
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Solution Overview
Problem
Existing release agents for vulcanized rubber molding require large amounts to achieve sufficient mold releasability, leading to increased wash water usage and drainage load.
Innovation Solution
A release agent containing polyoxyalkylene glyceryl ether with 50% to 95% oxyethylene groups and optionally polyoxyalkylene diol, which enhances mold releasability and removability with a reduced amount of wash water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large amount of release agent is used to achieve sufficient mold releasability, then mold releasability is improved, but the amount of wash water required for removal increases, resulting in high drainage load
Solution Approach 1:
The invention changes the chemical composition parameters of the release agent by specifying that polyoxyalkylene glyceryl ether must contain 50% to 95% by mass of oxyethylene groups. This parameter optimization enables the release agent to achieve sufficient mold releasability with lower application amounts, thereby reducing the quantity of wash water needed for removal and lowering drainage load.
2Reliability
If a large amount of release agent is used to achieve sufficient mold releasability, then mold releasability is improved, but the amount of release agent required increases
Solution Approach 1:
The invention optimizes the chemical structure parameters of the release agent by defining specific oxyethylene group content (50% to 95% by mass). This parameter control enhances the release efficiency per unit mass, allowing sufficient mold releasability to be achieved with a reduced amount of release agent application.
Data Source
AI summary
Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000.