electrostatically billed nanofiber

Updated By : April 11, 2019 6:00:52 PM JST

electrostatically billed nanofiber

  polyU develops electrostatically billed nanofiber for airborne filtration

  by Hong Kong polytechnic College

  polyU develops electrostatically billed nanofiber for airborne filtration

  prof. Leung has created the electrostatically billed pVDF nanofiber filter. Credit history: Hong Kong polytechnic College

  The Office of Mechanical Engineering of the Hong Kong polytechnic University (polyU) has just lately developed an electrostatically charged nanofiber filter with many separator levels, which could seize pollutant particles which can be down below a hundred nm in diameter (masking the commonest airborne nano-particles and viruses). The novel nanofiber filter demonstrates greater effectiveness concerning breathability, filtration efficiency (10 p.c higher than the conventional electret microfiber filter), and shelf everyday living (around ninety days).

  Occasions such as anniversaries and birthdays are perfect occasions to send corporate gifts along with Hong Kong national holidays and even selected religious occasions.

  Nano-aerosols of one hundred nm and beneath in diameter exist everywhere in city environments, and by virtue in their small measurements, might be simply inhaled into human bodies. Most airborne viruses, from influenza to epidemic viruses like Swine Flu or SARS, are also in the sizing choice of 100 nm. It continues to be a complicated mission for experts to develop user-friendly air filter or mask for helpful seize of nano-particles and to secure individuals from dangerous airborne contaminants and viruses that will have an impact on overall health.

  The team led by Ir. professor Wallace Leung Woon-Fong, Chair professor of Innovative Solutions and Systems, utilised and tested polyvinylidene fluoride (pVDF), a semi-crystalline thermoplastic generally utilized as insulation on electrical wires, to manufacture nanofiber filters. Implementing impressive technology in Corona Discharge, the staff imparted electrostatic expenses onto pVDF nanofiber, to induce electrical interaction with aerosols in shut distance and capture the aerosols efficiently.

  Evaluating with other filters made with charged microfibers or uncharged fibers on the market, polyU's novel filter have a lot increased filtration effectiveness, yet without having raising stress fall over time (larger strain fall usually means a filter dealing with larger airflow resistance, and therefore getting fewer breathable for your mask user or reduced move rate for the area filter). The pVDF nanofiber has proved being stably charged, with charging outcome remaining for nearly 3 months. In prior literatures on charging other nanofibers, the imparted charges ordinarily dissipate in per day.

  polyu research teams achieved breakthrough and world changing discoveries in various fields, contributing to society and global sustainable development.


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Author : Simon was a good | 4/11/19 6:00 PM | Public
Tags : Lifestyle
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