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Updated: Jun 9, 2025
10:22
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
Published on: November 30, 2020
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Key Process Control for Synthesizing High-Performance Inherently Flame-Retardant Long-Chain Bio-Based Polyamide
Lurong Zhang1, Zhiwen Cao1, Shikun Zhao1
1College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
Chempluschem
|October 31, 2024
Summary
Synthesizing flame-retardant bio-based polyamide 512 (PA512) was achieved using a reactive flame retardant. This novel flame-retardant PA512 (FRPA512) exhibits excellent flame retardancy and mechanical properties.
Area of Science:
- Polymer Chemistry
- Materials Science
- Green Chemistry
Background:
- Long-chain bio-based polyamides offer excellent properties and sustainability.
- Synthesizing inherently flame-retardant versions is challenging due to polymerization complexities.
Purpose of the Study:
- To develop an intrinsically flame-retardant long-chain bio-based polyamide 512 (PA512).
- To optimize the polymerization process for enhanced flame retardancy and material properties.
Main Methods:
- Synthesis of flame-retardant PA512 (FRPA512) using a reactive flame retardant.
- Clarification and optimization of reaction conditions in a two-step pre-polymerization approach.
Main Results:
- Achieved high molecular weight FRPA512 with high phosphorus content and good mechanical properties.
- FRPA512 demonstrated excellent flame retardancy with a 28.1% LOI and V-0 rating at 5 wt% flame retardant loading.
Conclusions:
- The study presents a viable method for synthesizing flame-retardant polyamides.
- Offers new perspectives for modifying polyamide copolymerization for improved safety and performance.
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