Electrospining Machine:Electrostatic spinning combined with electrostatic spraying for the preparation of nanofiber composite nanoparticles, how to select the type?

Background

Electrostatic spinning technique is used to efficiently prepare Electrospun Nanofbers and electrostatic spraying can be used to prepare nanoparticles. Electrospinning combined with electrostatic spraying can realize the composite preparation of Electrospun Nanofbers and nanoparticles to obtain composites with nanoscale structure. Such composites retain the high specific surface area and microstructural characteristics of nanofibers, but also have the functional and specific properties of nanoparticles, expanding the application areas of the materials.

How to realize electrostatic spinning combined with electrostatic spraying

Simultaneous: Electrostatic spraying is performed simultaneously during the electrostatic spinning process. This approach allows nanoparticles to be sprayed onto the fibers by electrostatic spraying technique while the fibers are being formed, achieving the simultaneous preparation of nanofibers and nanoparticles.

A step-by-step process was carried out: first Electrospun Nanofbers were prepared by electrostatic spinning, and then after the fibers were formed, the nanoparticles were sprayed onto the surface of the fibers by electrostatic spraying technique. This approach can control the preparation process of fibers and particles separately, which makes it easier to achieve the regulation of the structure and properties of composites.

What are the application examples of electrostatic spinning combined with electrostatic spraying?

Nano Energy: Powerful Integration of Energy Harvesting and Daytime Radiant Cooling Enables Wearable Thermal Comfort for Self-Powered Electronic Devices

In this study, a super-stretchable, waterproof and breathable nonwoven fabric was fabricated by integrating passive radiative cooling technology into a TENG system through electrostatic spinning combined with electrostatic spraying. The co-deposited PVDF-HFP/SiO2 micro-nanoparticles have excellent friction electrical and radiative cooling properties and can be used as binders and hydrophobes.

Small: Bionic layered multi-protective films prepared by electrostatic spinning combined with electrostatic spraying for extreme environments

In this study, a one-step co-electrospinning-electrospraying process was used to prepare superhydrophobic composite protective membrane (S-MPM). Compared with pure electrostatically spun film, S-MPM could resist skin temperature drop (11.2°C) or increase (17.2°C) caused by 0°C cold or 70°C heat. In cold climates (-5°C), S-MPM is 2.52 times more resistant to ice, while the de-icing time is only 1.45 seconds due to the huge photothermal effect.

ACS Applied Bio Materials: Combining electrospinning and electrospray to prepare biomimetic neural scaffolds

This study combined electrospinning and electrospraying to prepare biomimetic scaffolds with conductive and aligned fiber structures. Highly aligned polylactide (PCL) microfibrous scaffolds with co-sprayed collagen and conductive polypyridine nanoparticles (PPy NPs) showed good bioactivity, providing a platform for the effects of fiber conductivity and its mediated external electrical signals on neurogenesis.

Originallink: https://doi.org/10.1021/acsabm.0c00595,https://doi.org/10.1002/smll.202304705,https://doi.org/10.1016/j.nanoen.2023.108842