Chemical modification of polyurethane for two-component injection molding

@inproceedings{Bruer2002ChemicalMO,
  title={Chemical modification of polyurethane for two-component injection molding},
  author={Matthias Br{\"a}uer and B. Hupfer and J{\"u}rgen H. Nagel and Dieter Lehmann},
  year={2002}
}
A thermoplastic polyurethane (TPU) was modified by reactive processing with 4,4'-diphenylmethane diisocyanate (MDI). The use of this modified polyurethane was investigated for improved adhesion in composites with polyamide 6 (PA 6). Specimens were prepared by two-component injection molding. With the modified polyurethane the tensile bond strength could be increased by about 50%. An insoluble and inseparable polyurethane residue on the PA 6 fracture surface found by ATR-FTIR spectroscopy gave… CONTINUE READING