In-situ synthesis preparation method of virtual acoustical material
A technology of in-situ synthesis and acoustic materials, applied in the field of loudspeakers, can solve the problems of the specific mechanism of sound quality and anti-aging mechanism of loudspeakers, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] Step a: Accurately weigh 4g of liquid addition-type heat-curing silicone, 0.01g of aluminum hydroxide, and 6g of carbon black with an average primary particle size of 23nm, stir and dissolve or disperse evenly with 40ml of dichloromethane as the reaction oil phase; 8g of polyvinyl alcohol-1799 and 12.5g of non-ionic emulsifier isomeric alcohol ether 1312, stirred and heated to 90°C with 400g of pure water to fully dissolve, filtered with 300 mesh filter cloth as the reaction water phase; under rapid stirring, the reaction Pour the oil phase into the reaction water phase at one time, and then slowly raise the temperature to the temperature of the mixed system to about 80°C, so that the solvent is gradually volatilized, and the silica gel quickly reacts to solidify the oil phase into solid microspheres, further raising and controlling the temperature of the system Continue to react at about 90-95°C for 2 hours to completely harden the microspheres. The reaction product is...
Embodiment 2
[0022] Step a: Accurately weigh 3.5g of liquid addition-type heat-curable silicone, 0.01g of aluminum hydroxide, and 6.5g of carbon black with an average primary particle size of 23nm, stir and dissolve or disperse evenly with 40ml of dichloromethane, and use it as the reaction oil phase; Weigh 8g of polyvinyl alcohol-1799 and 12.5g of non-ionic emulsifier isomerized alcohol ether 1312, stir and heat with 400g of pure water to 90°C to fully dissolve, filter with a 300-mesh filter cloth as the reaction water phase. Under rapid stirring, the reaction oil phase is poured into the reaction water phase at one time, and then the temperature is slowly raised to the temperature of the mixed system to about 80°C, so that the solvent is gradually evaporated, and the silica gel quickly reacts to solidify the oil phase into solid microspheres, further The temperature of the system is raised and controlled at about 90-95°C to continue the reaction for 2 hours to completely harden the micros...
Embodiment 3
[0025] Step a: Accurately weigh 2.5g of liquid addition-type heat-curable silicone, 0.01g of aluminum hydroxide, and 7.5g of carbon black with an average primary particle size of 23nm, stir and dissolve or disperse evenly with 40ml of dichloromethane, and use it as the reaction oil phase; Weigh 8g of polyvinyl alcohol-1799 and 12.5g of non-ionic emulsifier isomerized alcohol ether 1312, stir and heat with 400g of pure water to 90°C to fully dissolve, filter with a 300-mesh filter cloth as the reaction water phase. Under rapid stirring, the reaction oil phase is poured into the reaction water phase at one time, and then the temperature is slowly raised to the temperature of the mixed system to about 80°C, so that the solvent is gradually evaporated, and the silica gel quickly reacts to solidify the oil phase into solid microspheres, further The temperature of the system is raised and controlled at about 90-95°C to continue the reaction for 2 hours to completely harden the micros...
PUM
Property | Measurement | Unit |
---|---|---|
Particle size | aaaaa | aaaaa |
Bulk density | aaaaa | aaaaa |
Bulk density | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com