Renewable vitamin B5 reactive N–P flame retardant endows cotton with excellent fire resistance and durability

A bio-based P–N synergistic flame retardant ammonium salt of d -Panthenol-tri (methylphosphonic acid) (ADPTMPA) was synthesized using a formaldehyde-free and solvent-free strategy for the highly efficient preparation of durable flame-retardant cotton. The ADPTMPA structure was verified by 1 H NMR, 1...

Full description

Saved in:
Bibliographic Details
Published in:Cellulose (London) 2020-02, Vol.27 (3), p.1745-1761
Main Authors: Wan, Caiyan, Liu, Mingsheng, Tian, Peixiu, Zhang, Guangxian, Zhang, Fengxiu
Format: Article
Language:English
Subjects:
Bioorganic Chemistry
Carbon
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Cotton
Durability
Enthalpy
Fire resistance
Flame retardants
Flammability
Glass
Hearing protection
Heat release rate
Heat transmission
Mechanical properties
Morphology
Natural Materials
NMR
Nuclear magnetic resonance
Organic Chemistry
Original Research
Panthenol
Physical Chemistry
Polymer Sciences
Pyrolysis
Smoldering
Sustainable Development
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A bio-based P–N synergistic flame retardant ammonium salt of d -Panthenol-tri (methylphosphonic acid) (ADPTMPA) was synthesized using a formaldehyde-free and solvent-free strategy for the highly efficient preparation of durable flame-retardant cotton. The ADPTMPA structure was verified by 1 H NMR, 13 C NMR and 31 P NMR. FT-IR test revealed successful grafting of the flame retardant onto the cotton through P–O–C covalent bonding. The morphologies and structures of pure cotton and treated cotton were characterized by SEM and XRD, and the elemental compositions of cotton samples were analyzed by EDX. Volatile pyrolysis products of treated cotton were analyzed by TG-IR. Flame retardancy and washability of treated cotton were analyzed by limiting oxygen index (LOI) and vertical flammability tests (VFT). The LOIs of 40 wt% ADPTMPA treated cotton before and after 50 laundering cycles was determined as 46.5% and 35.8%, respectively. VFT showed the treated cotton exhibited no smoldering and continuous burning. All carbon lengths of treated cottons were less than 60 mm. The heat release rate and total heat release of treated cotton were decreased by 91.34% and 58.01% compared with pure cotton, respectively. There was 29.42 wt% carbon residual remaining when the treated cotton was exposed to heat flow of 35 kw/m 2 . The treated cotton exhibited excellent flame retardancy and washability. Additionally, the mechanical properties and whiteness of the treated cotton were well-maintained. Graphic abstract
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-019-02886-z