Britannica
Sources used in this answer
How are polyacrylate elastomers used in O-rings and gaskets?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
elastomer
Learn about elastomers that are changeable in colour and texture, much like the skin of octopuses and other cephalopods. In the elastomers, these changes take place under electrical stimulation.
Polyacrylate elastomers are synthetic rubbers valued for their ability to withstand harsh environmental conditions, making them ideal for use in O-rings, seals, and gaskets.12
These materials are specifically chosen for these applications due to several key properties:
- Heat Resistance: They offer high heat resistance, performing at levels comparable to silicone rubbers and fluoroelastomers.2
- Chemical Durability: They provide excellent resistance to ozone, sunlight, and degradation caused by hydrocarbon oils.12
The material's durability is achieved through its chemical structure, where polymer chains are interlinked at reactive halogen sites to form a stable, elastic network. This structural integrity ensures that O-rings and gaskets maintain their function when exposed to oil and high-temperature environments.12