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United States Department of Agriculture

Agricultural Research Service

Research Project: CHEMICAL MODIFICATION OF COTTON FOR VALUE ADDED APPLICATIONS

Location: Cotton Chemistry and Utilization Research

Title: The influences of piperazine-phosphonates derivatives on flame retardancy and thermal behaviors of cotton cellulose

Authors
item NGUYEN, THACH-MIEN
item CHANG, SECHIN
item CONDON, BRIAN

Submitted to: American Chemical Society National Meeting
Publication Type: Abstract Only
Publication Acceptance Date: December 20, 2012
Publication Date: N/A

Technical Abstract: In an effort to create the environmentally-friendly flame retardants (FRs) for cotton cellulose, two phosphoramidates derivatives, tetraethyl piperazine-1,4-diyldiphosphonate (PDP) and diethyl 4-methylpiperazin-1-ylphosphoramidate (PAP), have been developed. Both were synthesized in high yield and characterized analytically. Cotton fabric was treated with both to obtain add-on values of 2 and 7 % for PDP and 3 and 8 % for PAP. 7 % PDP passed vertical flammability test with 2.0 cm char length. PDP samples displayed higher limiting oxygen index values and char percent at 600oC as compared to PAP ones. In addition, data on micro combustion calorimetry, surface morphology, and content of nitrogen and phosphorus on treated fabrics will be presented.

Last Modified: 9/10/2014
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