Electrospining Machine:PVDF-based materials are commonly used in lab electrospinning machime; what are some ways to improve their output performance?

Background

To solve the problem of powering wearable electronic devices, combining polyvinylidene fluoride (PVDF)-based lab electrospinning machime with textiles is emerging as a lightweight, green and sustainable energy solution, but with low piezoelectricity. In light of this, researchers at Xi'an University of Engineering (XUE) have published a review of recent advances in lab electrospinning machime for energy harvesting and self-powered electronics applications.

The review is titled “Recent progress on flexible poly(vinylidene fluoride)-based piezoelectric nanogenerators for energy harvesting and self-powered electronic applications. powered electronic applications” in Renewable and Sustainable Energy Reviews.

The main points of this paper

1. This study reviews and critically discusses recent advances in flexible PVDF backlog lab electrospinning machime for energy harvesting and self-powered electronic applications.

2. The key to improve the piezoelectric output performance of PVDF-based materials is to increase the β-phase content. electrospinning machine can increase the β-phase content; therefore, the composite Electrospun Nanofbers-based pressed lab electrospinning machime exhibits high output performance.

3. 3D printing can realize self-polarized PVDF-based press-lab electrospinning machime, which provides a new method for unpolarized piezoelectric devices.

How does increasing the B content in PVDF help improve the piezoelectricity of lab electrospinning machime?

Increasing the content of β in PVDF helps to enhance the piezoelectricity of lab electrospinning machime by promoting the formation of β phase, which is the most piezoelectrically active phase in PVDF. Compared to the α phase, the β phase has a higher piezoelectric coefficient, which improves the piezoelectric properties of lab electrospinning machime. By utilizing techniques such as electrospinning machines and structural design, the β content in PVDF can be increased so that the overall piezoelectric output of the lab electrospinning machime can be increased.

Key findings and insights from this paper include:

1. Various preparation methods, such as electrostaticspinning, meltspinning, solution blowspinning, and 3D printing, have been explored to improve the piezoelectric properties of flexible PVDF-based PENGs.

2. Introducing specific concentrations of piezoelectric fillers (e.g., PZT) into PVDF can significantly improve the piezoelectric output performance of nanogenerators.

3. In recent years, textile-based PENGs, including those based on Electrospun Nanofbers, yarns, and fabrics, have made promising progress for energy harvesting applications.

4. Combining PVDF-based PENGs with textiles provides sustainable energy solutions in the field of wearable technology, especially in the area of self-powered electronic applications.

5. Future research directions may focus on further improving the piezoelectric properties, durability and wearing comfort of flexible PVDF-based PENGs to enhance their performance in energy harvesting and self-powered sensing applications

Originallink: https://doi.org/10.1016/j.rser.2024.114285