Medical non-woven fabric composite and preparation method and application thereof
A technology of composite materials and non-woven fabrics, applied in application, melt spinning, non-woven fabrics, etc., can solve problems such as single function, achieve short process flow, long-lasting radiation protection effect, and good broad-spectrum antibacterial effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0023] A preparation method of medical non-woven composite material, comprising the steps of:
[0024] (1) Take 30 parts of polyadipate / butylene terephthalate, 20 parts of polybutylene terephthalate and 30 parts of polycarbonate respectively by weight and mix thoroughly to obtain mixture A;
[0025] (2) The mixture in step (1) is blended with 2 parts of sodium dodecylbenzenesulfonate and 1 part of silver-loaded titanium dioxide, and then extruded and granulated by a twin-screw extruder to obtain a blend , the extrusion temperature is 230°C;
[0026] (3) Vacuum-dry the blend in step (2) at 100°C for 32 hours, so that the moisture content is less than 120ppm. The dried blend is heated by a screw extruder, melted at 260°C, and extruded into a melt. When the melt is extruded from the spinneret hole of the die head, it is blown by the high-pressure hot air flow with a flow rate of 90m / sec and a temperature of 260°C on both sides of the spinneret hole, and the blend melt is stretch...
Embodiment 2
[0029] A preparation method of medical non-woven composite material, comprising the steps of:
[0030] (1) Take 40 parts of polyadipate / butylene terephthalate, 30 parts of polybutylene terephthalate and 40 parts of polycarbonate respectively by weight and fully mix to obtain mixture A;
[0031] (2) The mixture in step (1) is blended with 3 parts of sodium dodecylbenzenesulfonate and 1 part of ε-polylysine, and then extruded and granulated by a twin-screw extruder to obtain blend, the extrusion temperature is 230°C;
[0032] (3) Vacuum-dry the blend in step (2) at 110°C for 36 hours, so that the moisture content is less than 100ppm. The dried blend is heated by a screw extruder, melted at 280°C, and extruded into a melt. When the melt is extruded from the spinneret hole of the die, it is blown by the high-pressure hot air flow with a flow rate of 100m / sec and a temperature of 280°C on both sides of the spinneret hole, and the blend melt is stretched into ultra-fine fibers and ...
Embodiment 3
[0035] A preparation method of medical non-woven composite material, comprising the steps of:
[0036] (1) Take 50 parts of polyadipate / butylene terephthalate, 30 parts of polybutylene terephthalate and 40 parts of polycarbonate respectively by weight and fully mix to obtain mixture A;
[0037] (2) The mixture in step (1) is blended with 4 parts of sodium dodecylbenzenesulfonate and 2 parts of silver-loaded titanium dioxide, and then extruded and granulated by a twin-screw extruder to obtain a blend , the extrusion temperature is 250°C;
[0038] (3) Vacuum-dry the blend in step (2) at 120°C for 20 hours, so that the moisture content is less than 110ppm. The dried blend is heated by a screw extruder, melted at 250°C, and extruded into a melt. When the melt is extruded from the spinneret hole of the die head, it is blown by the high-pressure hot air flow with a flow rate of 120m / sec and a temperature of 270°C on both sides of the spinneret hole, and the melt of the blend is str...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Gram 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