Title: Relationships Between Polyurethane Elastomer Structure and Ageing Properties: Part 1: Degree of Crosslinking
Abstract: Abstract : The effects of crosslink density on the ageing properties of polyurethane elastomers have been studied using a series of typical polyester and polyether urethanes of M(c ) values (average molecular weight between crosslinks) between 2,500 and infinity. While the unaged polyester urethane elastomers showed the highest strengths, the polyether urethane elastomers showed superior hydrolytic stability. An optimum balance between mechanical properties and the resistance to hydrolysis and standard test fluid appeared to be achieved with a relatively high degree of crosslinking ie M(c) values of less than 5,000.
Publication Year: 1970
Publication Date: 1970-08-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot