Chemical Structure:
Processing Techniques: Injection molding, electrospinning, etc.
Product Features and Applications:
Products made from poly-L-lactic acid exhibit good biocompatibility, and after degradation within the body, the metabolized products are excreted without posing any harmfulness or toxic side effects to humans.
Project | Quality Specifications | Testing Method |
Property Viscosity | 0.3-5dl/g | Ubbelohde Viscometer |
Viscosity average molecular weight Number average molecular weight | 1-100w 1-100w | Wu 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 and Liquid Chromatography Colorimetry, Atomic Absorption Spectroscopy ---- High-temperature incineration, weigh the residue remaining |
Product Type:
Model | Name | Property Viscosity Range dL/g |
PDLA-05 | D-(-Lactic Acid) Polylactic Acid | 0.30-0.50 |
PDLA-07 | Dextrorotatory polylactic acid | 0.50-0.70 |
PDLA-10 | Dextro-乳酸聚合物 | 0.70-1.00 |
PDLA-15 | Dextrose polylactic acid | 1.00-1.50 |
PDLA-20 | Dextro-Lactic Acid | 1.50-2.00 |
PDLA-25 | D(-)-Lactide | 2.00-2.50 |
PDLA-30 | Dextro-Lactic Acid | 2.50-3.00 |
PDLA-40 | Dextro-Lactic Acid | 3.00-4.00 |
PDLA-50 | Dextrorotatory polylactic acid | 4.00-5.00 |
PDLA Infrared Spectrum:
Around 1250 cm-1 is the asymmetric stretching vibration peak of C-O-C, around 1100 cm-1 is the symmetric stretching vibration peak of C-O-C, around 1750 cm-1 is the carbonyl absorption peak, around 3500 cm-1 is the absorption peak of -OH, and at 2890 cm-1 and 2960 cm-1 are...
And -CH3.
Storage Method:
This product series is made of biodegradable materials. It should be stored away from water, acidic substances, alkaline substances, alcohols, and other reagents that may cause degradation of the product.
This product series should be stored in a sealed, dry, and low-temperature environment (freezer at -20°C) during storage. It should be sealed with a sealing machine (any remaining product after use should not be stored in a self-seal bag).
■ When in use, remove from the refrigerator and let it reach room temperature before opening. Wait until the product has reached room temperature and wipe off the condensation on the packaging bag before opening (opening it before reaching room temperature will cause moisture in the air to condense on the product surface, leading to degradation). The ambient air humidity in the usage environment should be less than 35% to prevent the remaining product from getting damp, which may affect the product quality.
