| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: overall, the invention relates to production of foamed thermoplastic from an aqueous dispersion for use in absorbent materials. The method involves adding at least one foam-stabilising surfactant to an aqueous dispersion which contains a thermoplastic resin, water and a stabilising agent for dispersion systems to form a mixture. Fibre is then added to the mixture which is then foamed. Further, at least a portion of water is removed from the foam to obtain foamed material with a non-cellular fibrillated morphology. The foamed material with average density between approximately 0.02 g/cm3 and approximately 0.07 g/cm3 may be used in absorbent articles. ^ EFFECT: obtained foamed material has good tensile strength in wet or dry conditions and excellent quality with respect to collapsing in wet conditions compared to cellulose based fibre systems. ^ 35 cl, 6 dwg, 3 tbl, 3 ex |
