AbstractIn order to study modifications of the properties of a polyurethane adhesive, we have prepared polyblends with a siliconic polymer and mixtures with some fiber reinforcing agents or with plasticizers. Stress–strain measurements were done on the samples using an Instron Model 1125 Universal testing machine. For comparison, some specimens were kept at normal room conditions, while others were cycled in an artifical weathering chamber. Results are discussed and conclusions draw
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