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Effects of Four Isocyanates and Four Plasticizers on the Thermomechanical and Tensile Properties of Hydroxyl‐terminated Polybutadiene Elastomers and the Effect of Solid Particle Filling by Tijen Seyidoglu; Manfred A. Bohn is a Materials Science article available to read on EtoBox.

What is Effects of Four Isocyanates and Four Plasticizers on the Thermomechanical and Tensile Properties of Hydroxyl‐terminated Polybutadiene Elastomers and the Effect of Solid Particle Filling about?

The aim of this study is to analyze effect of four different isocyanates and four different plasticizers in hydroxyl-terminated polybutadiene (HTPB) based elastomers by quantitative analysis of the shape of the loss factor (tan δ), tensile strength, deformation frequency shift of the maximum temperatures of loss moduli G" and of tan δ. The first part of the study shows intensities of the tan δ curves with the four isocyanates follow the order HDI > IPDI > H12MDI > DesmodurTM E305. By molecular modeling of the isocyanates and the corresponding polyurethane parts the influence of molecular geometry on tan δ are discussed. The second part of the study analyzes HTPB-IPDI elastomers with the four different plasticizers DOA, DOS, DOZ, and IDP. The IDP provides lowest T g at about -83 C, while the others provide at about -78 C. In the third part, aluminum (Al-18 μm) and ammonium perchlorate (AP-200 μm) are added to HTPB-IPDI+DOA to analyze the effect Abbreviations: 6HMDI, here used synonymously to H12MDI, aliphatic diisocyanate; ARESTM, Advanced Rheometric Expansion System, name of DMA instrument used; BLC, baseline correction of loss factor; COD, correlation coefficient of determination,

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Author

Tijen Seyidoglu; Manfred A. Bohn

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0021-8995)

Published

2020

Language

EN

Field

Materials Science (Physical Sciences)