Chemical Structure:
Product Features and Applications:
Products made from poly-L-lactic acid exhibit good biocompatibility. After degradation within the body, the resulting products are metabolized and excreted, posing no harmfulness or toxic side effects to humans.
Processing Techniques: Injection molding, electrospinning, etc.
Project | Quality Specifications | Testing Method |
Characteristics Viscosity | 0.3-5dl/g | WU Viscometer |
Viscosity average molecular weight Number average molecular weight | 1-100w 1-100w | Wu's Viscosity Method GPC (Gel Permeation Chromatography) |
Glass Transition Temperature | 60-65℃ | Differential Scanning Calorimetry (DSC) |
Melting Point Residual Monomer Residual Solvent Heavy metals Density Sulfate Ash | 175-185℃ <1% <0.05% <10 ppm 1.20-1.30g/cm3 <0.05% | Automatic Melting Point Determination Method Gas Chromatography, Liquid Chromatography Gas Chromatography, Liquid Chromatography Colorimetry, Atomic Absorption Spectroscopy ---- High-temperature burning, measuring the residue amount |
Product Type:
Model | Name | Property Viscosity Range dL/g |
PLLA-05 | L-Lactic Acid Polymer | 0.30-0.50 |
PLLA-07 | L-Lactic Acid Polymer | 0.50-0.70 |
PLLA-10 | L-Lactic Acid Polymer | 0.70-1.00 |
PLLA-15 | L-Lactic Acid Polymer | 1.00-1.50 |
PLLA-20 | L-Lactic Acid Polymer | 1.50-2.00 |
PLLA-25 | L-Lactic Acid Polylactide | 2.00-2.50 |
PLLA-30 | L-Lactic Acid Polymer | 2.50-3.00 |
PLLA-40 | L-Lactic Acid Polymer | 3.00-4.00 |
PLLA-50 | L-Lactic Acid Polymer | 4.00-5.00 |
PLLA Infrared Spectrum:
Approximately 1250 cm^-1 represents the C-O-C asymmetric stretching vibration peak, around 1100 cm^-1 is the C-O-C symmetric stretching vibration peak, at about 1750 cm^-1 is the carbonyl absorption peak, and around 3500 cm^-1 is the -OH absorption peak, with peaks at 2890 cm^-1 and 2960 cm^-1 being...
And -CH3.
Storage Method:
This product series is made of biodegradable materials. During storage, it should be kept away from water, acidic substances, alkaline substances, alcohols, and other agents that may cause degradation of the product.
This product series should be sealed, kept dry and at low temperatures (freezer at -20 degrees Celsius) during storage. Use a sealing machine for sealing; any remaining product after use should not be stored in self-sealing bags.
When using, remove from the refrigerator and let it reach room temperature before opening. Wipe off the condensation on the packaging bag with a dry cloth once it has reached room temperature. Do not open the product directly from the refrigerator, as moisture in the air will condense on the product surface, causing degradation. The ambient humidity of the usage environment should be less than 35% to prevent the remaining product from getting damp and affecting its quality.
