Method capable of improving thermostability and flame retardance of PVC
A flame retardant and thermally stable technology, applied in the field of improving PVC thermal stability and flame retardant properties, to achieve the effects of improving thermal stability and flame retardant properties, improving mechanical strength, and increasing phenolic hydroxyl content
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] A method for improving PVC heat stability and flame retardancy, the method comprises the steps,
[0034] (1) Hydrophobic and plasticizing modification: Take dry nano-magnesium borate / lignin composite material (mass ratio of magnesium borate to original lignin is 1:0.5, activated lignin mechanical solid-phase reaction activation time is 0.5h) as reinforcement Addition of reinforcing agent is 20% of the total mass of PVC and reinforcing agent, adding DOP of 20% of the total mass of PVC and reinforcing agent, performing hydrophobic modification in an oven at 100°C for 2 hours, and then mixing with PVC at 60°C Carry out the plasticizing reaction in an oven for 2 hours to obtain the plasticized modified mixture;
[0035] (2) Internal mixing: set the temperature of the internal mixer to 165°C, add the plasticized modified mixture into the internal mixer, and internally mix at a speed of 10 rpm for 10 minutes to obtain a flake product, which is crushed by a high-speed pulveriz...
Embodiment 2
[0038] A method for improving PVC heat stability and flame retardancy, the method comprises the steps,
[0039] (1) Hydrophobic and plasticizing modification: Take dry nano-magnesium borate / lignin composite material (mass ratio of magnesium borate to activated mass is 1:0.2, activated lignin mechanical solid-phase reaction activation time is 1.0h) as reinforcement Addition of reinforcing agent is 5% of the total mass of PVC and reinforcing agent, adding stearic acid of 10% of the total mass of PVC and reinforcing agent, carrying out hydrophobic modification in an oven at 90°C for 1.h, and then mixing with PVC Mix in an oven at 100°C for plasticizing reaction for 1 hour to obtain a plasticized modified mixture;
[0040] (2) Internal mixing: set the temperature of the internal mixer to 160°C, add the plasticized modified mixture into the internal mixer, and internally mix at a speed of 10 rpm for 10 minutes to obtain a flake product, which is crushed by a high-speed pulverizer t...
Embodiment 3
[0043] A method for improving PVC heat stability and flame retardancy, the method comprises the steps,
[0044] (1) Hydrophobic and plasticizing modification: Take dry nano-magnesium borate / lignin composite material (mass ratio of magnesium borate to activated mass is 1:1.5, activated lignin mechanical solid-phase reaction activation time is 1.5h) as reinforcement Addition of reinforcing agent is 10% of the total mass of PVC and reinforcing agent, adding dibutyl phthalate of 30% of the total mass of PVC and reinforcing agent, and carrying out hydrophobic modification in an oven at 90-120°C 3 .h, and then mixed with PVC in an oven at 90°C for plasticizing reaction for 3 hours to obtain a plasticized modified mixture;
[0045] (2) Internal mixing: set the temperature of the internal mixer to 190°C, add the plasticized modified mixture into the internal mixer, and internally mix at a speed of 10 rpm for 10 minutes to obtain a flake product, which is crushed by a high-speed pulver...
PUM
Property | Measurement | Unit |
---|---|---|
oxygen index | aaaaa | aaaaa |
oxygen index | 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