PREPARATION METHOD OF A FLEXIBLE TRANSPARENT RADIATION SHIELDING FILM BASED ON BISMUTH COMPOUNDS AND ITS APPLICATION
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 12, 2023
app pub date -
Mar 23, 2023
filing date -
Mar 24, 2022
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A preparation method of flexible transparent radiation shielding film based on bismuth compounds and its application are provided, in which bismuth compound nanoparticles, polyvinyl alcohol and trace glycerol are mixed to produce a flexible transparent radiation shielding film. The invention disperses the nanoparticles in water to form a stable dispersion, which ensures the homogeneity of the sol obtained by mixing the nanoparticles with polyvinyl alcohol. This invention avoids the decrease in transparency of the composite film as induced by agglomeration of the nanoparticles, achieving a light transmission of over 70% in the visible wavelength band (400-800 nm). With the aid of trace-mount glycerol, the film features long-term stability and flexibility. Importantly, the lead-free film shows a high shielding ability from the medical X-ray band (10-100 keV), which is comparable to Cu foil of identical thickness.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully