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How To Produce High Elongation Polyurethane Flexible Foam?
High elongation polyurethane flexible foam can be regarded as a modified flexible foam focusing on elongation performance.
The goal is to achieve high elongation, moderate tear strength, and low tensile strength.
Tensile Testing Instrument Image
Methods like coarse cell structure, plasticizer addition, and reducing total hard segments are not very effective in improving elongation. Good results can be obtained by adding di-functional polyether and polyester polyols.
Formulations of High Elongation Polyurethane Flexible Foam(Parts by Mass)
Performance Parameters
Formulation with Polyester Polyol
Physical Properties
Tensile Specimen Die Dimensions Diagram
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