Development of a Synthetic Polymer Burn Covering.
Abstract
In the study for the development of a synthetic burn covering, lactic acid monomer has been bulk polymerized to the polymer, polylactic acid (PLA), with molecular weights ranging from 20,000 to 45,000 using a tetraphenyl tin catalyst. Films (0.001 to 0.003 inches in thickness) of PLA have been cast. Pervaporation rates of water through the PLA films have been measured to be approximately 10 gm-mm/24 hr square m in a 37 C, 0% relative humidity (R.H.) ENVIRONMENT AND APPROXIMATELY 4 GM MM/24 HR SQUARE M IN A 37 C, 53% R.H. environment. Tensile strength, elongation at break, and Young's Moduli of 300,000 to 450,000 psi (jaw separation rate 0.1 inches/min) have been calculated using stress-strain data from standard tensile tests. (Author, modified-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 30, 1973
- Accession Number
- AD0759381
Entities
People
- Arthur D. Schwope
- Donald L. Wise
- John B. Gregory