On January 13, 2022, Antarctic Bear learned that the interdisciplinary research team of the Hong Kong Polytechnic University has successfully developed the world's first anti-virus 3D device that can kill more than 90 percent of the surface new coronavirus and most common viruses and bacteria within 10 minutes. Print material.
It is reported that this 3D printing material will be used in the door handles of nearly 100 Sanwu buildings that lack management in Shenshui Port. The research team is also cooperating with an injection molding company to mass-produce and widely use it in public facilities such as elevator buttons and handles. Provide epidemic prevention support for the community, and plan to produce canteen partition offset plates and mobile phone cases.
In the field material test conducted by the Hong Kong Polytechnic University in the past year, including the environment in which the handle of the recycling box and the elevator button were made, it was found that the material was not damaged, and no new coronary pneumonia virus was detected. The efficacy of the drug will gradually weaken after 3 years of use. .
△ Hong Kong Polytechnic University has successfully developed anti-virus 3D printing materials, which can be applied to elevator buttons.
The main component of the material is resin, and antiviral components such as cationic compounds are added to pierce the cell membrane of the virus and destroy its structure; as long as the virus or bacteria have a cell membrane, even if there is a variant, it can be killed.
Associate Professor Lu Junyu of PolyU's Department of Textiles and Clothing, who led the team, pointed out that the current long-lasting self-cleaning coatings on the market only last for 1 to 2 months, and daily cleaning will speed up the peeling from the surface of objects, and the maintenance cost is also high. This material is more durable and efficient. In addition to the resin being hard and not easy to be damaged, laboratory tests have also confirmed that the material can kill 70 percent of the new coronavirus and other viruses that survive on its surface within 2 minutes, and the anti-virus rate within 10 minutes is higher. Up to 90 percent , almost all viruses and bacteria on the surface can be killed within 20 minutes, and the material can kill more than 84 percent of viruses within 10 minutes after 3 years of use.
In addition, since the disinfectant ingredient of the material is embedded rather than a coating, even if it is cleaned with disinfectants such as bleach, its anti-virus effect will not be compromised.
Lu Junyu also pointed out that the material production can use 3D printing technology, because it needs to produce different shapes, it has high plasticity, and can be widely used in public facilities to provide epidemic prevention support for the community. For example, the team has made materials into recycling bin handles and toilets in the past year. Door handle protectors, elevator buttons and Braille boards, etc., are used in Hong Kong Wetland Park, used clothes recycling bins, etc. Regular tests did not detect the new coronavirus and common viruses such as E. coli and Streptococcus aureus, and there was no damage. The team is patenting the technology for commercial use.
△The Hong Kong Polytechnic University has conducted field tests in the past year, including the manufacture of recycling bin handles and elevator buttons. It was found that there was no damage, and no new coronavirus was detected.
The team was invited by the Sham Shui Po District Office to make door handle protective covers for over 100 unmanaged buildings in the area, and install them on doors frequently used by residents to help reduce the cost of building interiors. risk of virus transmission.
Lu Junyu said that the cost of this new material is not high and it is durable. The elevator button takes a short time to make, and it is believed that it can be widely used as soon as possible. 10 elevator buttons can be made in about 10 minutes by 3D printing, and the material cost is only 10 yuan. He also said that the research team is currently cooperating with injection molding companies, hoping to mass-produce and widely use the materials in primary and secondary school campuses, medical care facilities, and public transportation systems. There are also plans to produce canteen partition boards, mobile phone cases, etc. Application in housing construction.