Preparation method of phenolic aldehyde-based activated carbon fiber felt
A technology based on activated carbon and fiber felt, applied in the direction of fiber chemical characteristics, heating/cooling fabrics, non-woven fabrics, etc., can solve the problems of high process parameter control, high manufacturing cost, and complexity, and achieve simple process and equipment, The effect of wide source of raw materials and low price
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] A kind of preparation method of phenolic-based activated carbon fiber felt, such as figure 1 In the process flow shown, thermoplastic phenolic resin with a softening point of 85°C and a free phenol content of 1.0% is melted under a nitrogen atmosphere at 130°C, and short fibers of 6.4dtex and 64mm are prepared by melt spinning. The staple fiber is processed by acupuncture and non-woven, and the weight is 470g / m 2 , Thickness 4.3mm needle felt. The needle felt was oxidized at 75°C for 24 hours in an air atmosphere to complete the pre-oxidation treatment. Under the condition of an atmosphere with an oxygen content of 4%, the carbonization furnace was used to slowly raise the temperature from 140°C to 400°C, and the heating process lasted for 30 minutes to complete the low-temperature carbonization. Under a nitrogen atmosphere, the carbonization furnace was used to slowly increase the temperature from 400°C to 900°C, and the heating process lasted for 40 minutes to compl...
Embodiment 2
[0034] A method for preparing phenolic-based activated carbon fiber felt, using thermoplastic phenolic resin with a softening point of 100°C and a free phenol content of 1.4%, melting it under a nitrogen atmosphere at 150°C, and preparing short fibers of 4.2dtex and 55mm through melt spinning. The staple fiber is prepared by needle-punched non-woven processing with a grammage of 590g / m 2 , Thickness 6.2mm needle felt. Oxidize the needle felt at 78°C for 20 hours in an air atmosphere to complete the pre-oxidation treatment. Under the condition of an atmosphere with an oxygen content of 6%, the carbonization furnace was used to slowly raise the temperature from 140°C to 350°C, and the heating process lasted for 30 minutes to complete the low-temperature carbonization. Under a nitrogen atmosphere, the carbonization furnace was used to slowly increase the temperature from 400 °C to 1000 °C, and the heating process lasted for 45 minutes to complete the high-temperature carbonizati...
Embodiment 3
[0036] A method for preparing phenolic-based activated carbon fiber felt, using a thermoplastic phenolic resin with a softening point of 93°C and a free phenol content of 1.3%, melting it under a nitrogen atmosphere at 120°C, and preparing short fibers of 5.6dtex and 76mm through melt spinning. The staple fiber is processed by needle-punched non-woven fabric with a weight of 690g / m 2 , Thickness 5.7mm needle felt. The needle felt was oxidized at 60°C for 24 hours in an air atmosphere to complete the pre-oxidation treatment. Under the condition of an atmosphere with an oxygen content of 10%, the carbonization furnace was used to slowly raise the temperature from 140°C to 400°C, and the heating process lasted for 30 minutes to complete the low-temperature carbonization. Under the condition of an atmosphere with an oxygen content of 1%, the carbonization furnace was used to slowly increase the temperature from 400°C to 1000°C, and the heating process lasted for 50 minutes to com...
PUM
Property | Measurement | Unit |
---|---|---|
softening point | aaaaa | aaaaa |
melting point | aaaaa | aaaaa |
Basis weight | 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