Chemical Structure:
Processing Techniques: Injection molding, electrospinning, etc.
Product Features and Applications:
Products made from racemic polylactic acid exhibit good biocompatibility and are approved by the FDA for use as excipients in injectable microcapsules, microspheres, and implants for slow-release corrosion inhibitors and internal fixation devices; as porous foam scaffolds for tissue engineering cell culture; in skeletal fixation or tissue repair materials for tissue engineering; as implantable sheets and clamps; and as ophthalmic implant materials such as retinas.
Project | Quality Specifications | Inspection Method |
Property Viscosity | 0.18-4dl/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 | 50-60℃ | Differential Scanning Calorimetry (DSC) |
Melting Point Residual Monomer Residual Solvent Heavy metals Density Sulfate Ash | ---- <1% <0.05% <10 ppm 1.20-1.30g/cm3 <0.05% | ---- Gas Chromatography, Liquid Chromatography Gas Chromatography, Liquid Chromatography Colorimetry, Atomic Absorption Spectroscopy ---- High-temperature incineration, measuring the remaining residue. |
Product Type:
Model | Name | Property Viscosity Range dL/g |
PDLLA-03 | Racemic Polylactic Acid | 0.18-0.30 |
PDLLA-05 | Racemic Polylactic Acid | 0.30-0.50 |
PDLLA-07 | (Racemic) Lactic Acid Polylactide | 0.50-0.70 |
PDLLA-10 | Racemic Polylactic Acid | 0.70-1.00 |
PDLLA-15 | Optically Active Polylactic Acid | 1.00-1.50 |
PDLLA-20 | (Racemic) Lactic Acid Co-glycolide | 1.50-2.00 |
PDLLA-25 | (Racemic) L-Lactic Acid Co-glycolide | 2.00-2.50 |
PDLLA-30 | Racemic polylactic acid | 2.50-3.00 |
PDLLA-40 | racemic polylactic acid | 3.00-4.00 |
PDLLA 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 line is made of biodegradable materials. During storage, avoid contact with water, acidic substances, alkaline substances, alcohol reagents, and other agents that can cause degradation of the product.
This product series should be stored in a sealed, dry, and low-temperature environment (refrigerator freezing at -20°C) during storage. Use a sealing machine for sealing; unused 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. Wait until the temperature stabilizes and wipe off the condensation from the packaging bag before opening (opening it directly from the refrigerator will cause moisture in the air to condense on the product surface, leading to degradation). The air humidity in the environment should be less than 35% to prevent the remaining product from getting damp, which may affect product quality.
