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Laboratory of Textile Polymers

Responsible: Diana Cayuela Marín
cayuela@intexter.upc.edu
Phone number: +34 93 739 82 78




Equipped to use techniques which enable the determination of the characteristics of the natural ad synthetic polymer structure. In particular: polymerization degree, molecular weights and crystallinity variation, so very significative in the detection of degradation or irregular dyeing behaviour.Laboratori de Polímers Tèxtils

Services

Qualitative and quantitative analysis of fibres and their blends
  • Cellulosic fibres: .Polymerization degree. Detection of oxycelluloses and hydrocelluloses. Reducibility. Water imbibition. Acetyl groups.
  • Wool. Acid or alkali content and pH of the aqueous extract. Extraction with dichloromethane and degreasing control. Alkali solubility and urea-bisulphite solubility. Cystine, cysteine, cysteic acid and trytophane contents.
  • Synthetic polymers. Qualitative analysis of plastics. Molecular weigth. Melting and glass transition temperatures. Effective temperature of thermal treatments. Specific heat at constant pressure and crystallisation and melting enthalpies. Crystallinity percentage (differential and flotation densities). Oligomers. End groups in polyamides and polyesters. Characterization of the fine structure in polyester, polyamide and acrylic fibres and its relations with the dyeing behaviour.

Courses
  • Polymers and their transformation in fibres.

R&D lines
  • Textile polymers.
  • Microestructure of polyester fibre.
  • Differential calorimetry of fibres from synthetic polymers.
  • Oxidizing, reducing bleaching of wool and combined oxi-red wool bleaching.
  • Relation between the polymerization degree and the tenacity of cellulose chemical fibres.