Medical Wound Dressing Compound (PLA/PBAT Fibre Composite)

About This Product

This grade is a medical compound of polylactic acid and polybutylene adipate terephthalate in a fibre composite form, supplied as a pellet compound for producing wound dressing substrates. PLA gives the fibre stiffness and dimensional stability, while PBAT is a flexible aliphatic-aromatic copolyester giving the drape and toughness that let the web conform to the wound without cracking. A wound dressing manages moisture at the wound bed: too dry and healing stalls, too wet and the surrounding skin macerates. The fibre structure of the dressing is what governs that balance. Fibre diameter and packing density set the pore size, and pore size sets the capillary pressure that draws exudate away from the wound surface; the void fraction sets how much of that fluid the web can hold and how readily vapour passes out rather than pooling beneath it. Fine fibres and tight pores wick strongly and hold fluid close to the wound; coarser, more open structures give up vapour faster and run the bed drier. Absorbency and moisture vapour transmission are therefore properties of the finished dressing construction. Manufacturing a medical device from this compound requires the manufacturer's own regulatory approvals, including an appropriate quality system such as ISO 13485 and the clinical evidence required in the target market. We supply the material and make no clinical claim. It is used in wound dressing materials, medical device manufacture and advanced wound care. Bio Green Chem supplies the medical grade PLA/PBAT fibre composite compound to specification on polymer ratio, melt flow for fibre spinning, moisture content and pellet form.