Climate chamber

humiditytemperaturestability

Overview
The electrospinning systems by Inovenso provide configurable environmental control to optimize nanofiber and nanoparticle production. Precise regulation of temperature and relative humidity in the deposition chamber helps control solvent evaporation, jet stability and final morphology, supporting reproducible process results and scalable production.

Effect of Relative Humidity on Electrospinning

• Low relative humidity: Faster solvent evaporation increases polymer concentration and viscosity, leading to earlier solidification; this can improve fiber alignment but requires tuning to avoid defects.
• Higher relative humidity: Slower evaporation can cause fiber swelling, beading and irregularities due to incomplete solidification before collection; elevated humidity may also affect electric field distribution at the collector.
• Relative humidity control influences nanofiber diameter distribution and bead-on-string formation by altering solvent evaporation dynamics and capillary breakup of the viscoelastic jet.

Benefits of Integrating Humidity Control Systems
Using integrated humidifiers and dehumidifiers in electrospinning setups brings operational and product advantages:

• Improved fiber quality: Better uniformity and reduced beading for smoother fiber surfaces.
• Enhanced mechanical properties: More consistent strength and flexibility through controlled drying conditions.
• Optimized solvent evaporation: Reduced material waste and consistent solidification timing.
• Process stability: Greater reproducibility and easier scale-up for industrial production.
• Material versatility: Enables processing of a wider range of polymers and blends.
• Economic efficiency: Lower scrap rates and higher throughput reduce operational cost.

Effect of Temperature-Controlled Chamber in Electrospinning
Temperature in the deposition chamber directly affects solvent evaporation rate, Taylor cone stability and jet homogeneity. Maintaining a controlled temperature minimizes defects such as beading, fiber-to-fiber bonding and agglomeration, producing consistent, high-performance nanostructures.

Importance of Temperature-Controlled Chamber

• Phase separation control: Limits phase separation in polymer blends during deposition to improve uniformity.
• Solvent evaporation rate: Temperature adjustment stabilizes evaporation and jet behavior to prevent incomplete deposition.
• Process stability: Reduces fluctuations and defect incidence for reproducible runs.
• Morphology control: Correlates with fiber diameter and nanoparticle size, enabling finer structures with stable surfaces.

Advantages of Inovenso's Temperature-Controlled Chamber

• Prevents production interruptions due to clogging from low-boiling solvents.
• Delivers higher sample quality and reproducibility across runs.
• Supports process scalability for increased production rates.

Technical specifications

• Integrated environmental control options: chamber-attached humidifier and dehumidifier for precise humidity regulation
• Temperature-controlled chamber providing homogeneous heating of the spinning area (heating up to 40°C)
• Designed to optimize solvent evaporation rate and Taylor cone stability
• Intended to improve fiber morphology (reduced beading, smoother surfaces) and mechanical properties
• Promotes process stability and reproducibility for scale-up and commercialization