Preparation method of anti-radiation nano-anion material
By using rare earth ion coordination modification of tourmaline and covalent grafting of bismuth oxide, combined with mechanochemical impact composite treatment, the problems of sedimentation separation and spontaneous polarization effect of bismuth oxide and tourmaline during melt blending were solved, achieving highly efficient synergistic performance of radiation-resistant nano-negative ion materials suitable for eye care products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, bismuth oxide and tourmaline are prone to sedimentation and separation during melt blending. Radiation-resistant fillers block the negative ion release channels, and the spontaneous polarization effect of tourmaline decays during processing, resulting in uneven performance and decreased mechanical properties of the composite material.
By modifying tourmaline with rare earth ions, grafting bismuth oxide with covalent bonds, and combining mechanical and chemical impact composite treatment, a non-continuous island-shaped composite functional filler is constructed, and a polydopamine interface bonding layer is formed on the surface of the matrix resin to ensure the synergistic coexistence of tourmaline negative ion release channels and radiation protection performance.
It achieves efficient synergy between X-ray attenuation and negative ion release, with a negative ion release of over 2000 per cubic centimeter. It also exhibits excellent far-infrared radiation performance and improved material mechanical properties, making it suitable for eye care products to relieve eye fatigue.
Smart Images
Figure CN122404874A_ABST