Chemical Structure:
Product Features and Applications:
Biodegradable aliphatic polymers with rapid degradation; good biocompatibility; biodegradation primarily through simple hydrolysis; bioreabsorbable; excellent processability; degradation rate, physical properties, mechanical properties, and other attributes can be achieved through various molecular weights of PGA and its copolymers. Mainly used in sutures, and as scaffolds for cell culture, transplantation, and organ regeneration.
Processing Techniques: Injection molding, melt spinning, etc.
Project | Quality Specifications | Testing Method |
Characteristics Viscosity | 0.2-2.0 dL/g | WU Viscometer |
Viscosity average molecular weight Number Average Molecular Weight | 1-100w 1-100w | Wu Viscosity Method GPC (Gel Permeation Chromatography) |
Glass Transition Temperature | 35-40℃ | Differential Scanning Calorimetry (DSC) |
Melting Point Residual Monomer Residual Solvent Heavy metals Density Sulfate Ash | 220-240℃ <1% <0.05% <10 ppm 1.3 g/cm3 <0.05% | Automatic Melting Point Determination Method Gas Chromatography, Liquid Chromatography Gas Chromatography, Liquid Chromatography Colorimetry, Atomic Absorption Spectroscopy ---- High-temperature incineration, weigh the remaining residue |
Product Type:
Model | Name | Melt Index Range (g/10min) | Molecular Weight |
PGA-05 | Polyester Staple Fiber | 40-50 | ＜10W |
PGA-04 | Polyester Staple Fiber | 30-40 | 10-20W |
PGA-03 | Polyester Staple Fiber | 20-30 | 20-30W |
PGA-02 | Polyester glycol | 10-20 | 30-49W |
PGA-01 | Polyester Staple Fiber | ＜10 | ＞50W |
PGA Infrared Spectrum
Approximately 3000 cm-1 and 2950 cm-1 represent C-H stretching peaks, around 1750 cm-1 is the carbonyl absorption peak, about 1400 cm-1 is the bending vibration peak of CH2, and around 1150 cm-1 is the stretching peak of C-O-C.
Storage Method:
This product line is made of biodegradable materials, and should be kept away from water, acidic substances, alkaline substances, alcohols, and other reagents that may cause degradation of the product during storage.
This product series should be stored in a sealed, dry, and low-temperature environment (freezer at -20°C) during storage. Use a sealing machine for sealing (leftover products after use must not be stored in self-sealing bags).
■ When in use, remove from the refrigerator and let it reach room temperature before opening. Wipe off the condensation on the packaging bag with a cloth. Do not open it immediately after taking it out of the refrigerator, as moisture in the air will condense on the product surface, causing degradation. The ambient humidity of the use environment should be less than 35% to prevent the remaining product from getting damp and affecting its quality.
