Wood-based composite material releasing negative oxygen ions and preparation method thereof
A technology of negative oxygen ions and composite materials, used in wood treatment, wood impregnation, wood impregnation, etc., can solve problems such as the reduction of negative oxygen ions, and achieve the effects of easy control of conditions, promotion of metabolism, and enhancement of body disease resistance.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0018] Example 1:
[0019] The wood-based composite material that releases negative oxygen ions under visible light irradiation described in this embodiment is irradiated with visible light with a wavelength of 380nm to 780nm for 60 to 300 minutes, and the number of negative oxygen ions released is greater than 2500 / cm 2 ;
[0020] The wood-based composite material that releases negative oxygen ions under visible light irradiation is to press untreated wood into a functional wood modifier of graphene oxide, nano-silica, and nano-titanium dioxide, and finally Get clean and dry.
[0021] The beneficial effects of this embodiment are: 1. The band gap of nano-titanium dioxide is relatively wide, and it is easy to generate photo-generated electrons and holes recombination under visible light irradiation, so that the generated negative oxygen ions are reduced, in order to inhibit photo-generated electrons and holes recombination and improve The mobility of charge, the use of graphene oxide
Example Embodiment
[0025] Example 2:
[0026] The difference between this embodiment and the first embodiment is that the functional wood modifier is prepared according to the following steps: first design two pre-experiments, a. take GO (0.25wt%) + SiO 2 (30wt%) mix, stir evenly with an electromagnetic stirrer, pressurize and impregnate the substrate, test the physical properties of the composite material, such as bending and compression resistance, hardness, water absorption, thermal stability, adsorption capacity, etc., according to the comprehensive performance The performance determines the better quantity ratio; b. Take GO(0.25wt%)+TiO 2 (0.8wt%) mix, stir evenly with an electromagnetic stirrer, pressurize and impregnate the substrate, test the negative oxygen ion release, harmful gas absorption, antibacterial properties and other properties of the composite material obtained, determine the better quantity ratio, and select it SiO 2 (30wt%)+TiO 2 (0.8wt%)+GO (0.25wt%) mixed and mixed uniformly wi
Example Embodiment
[0028] Example 3:
[0029] The difference between this embodiment and one of the specific embodiments 1 or 2 is that the wood loaded with functional wood modifier is prepared according to the following steps: the substrate is fixed on the pulse dipping machine, and the modifier is pneumatic The diaphragm pump provides pulse pressure to be injected from one side of the substrate. The growth direction of the wood is selected as the pulse tilt direction. The trunk and the low-molecular modifier will flow out from the other side of the wood. After 30 minutes, the sap of the xylem will be gradually replaced by the latest functional wood modifier. After immersion, the obtained wood is treated for 48h in the air drying process, and then transferred to a drying box for drying. The drying temperature is 90°C, the drying time is about 200h, and the wood pressure is 0.2MPa.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap