The behavior and mechanism of tris‐(3‐dopo‐propyl)‐triazine trione flame retardant polyethylene terephthalate

A 9,10‐dihydro‐9‐oxa‐10 phosphophenanthrene‐10‐oxide based derivative tris‐(3‐dopo‐propyl)‐triazine trione (TAD) is applied to polyethylene terephthalate (PET). The melting and blending process of the composite is carried out through twin screws. The flame retardancy, thermostability, and mechanical...

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Bibliographic Details
Published inJournal of applied polymer science Vol. 140; no. 29
Main Authors Liu, Hao‐Yu, Xin, Fei, Du, Jia‐Ying, Chen, Yu
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 05.08.2023
Wiley Subscription Services, Inc
Subjects
Cone calorimeters
flame retardant mechanism
Flame retardants
Fourier transforms
halogen‐free flame retardant
Heat release rate
Impact tests
Infrared spectra
Materials science
Mechanical properties
Optimization
Polyethylene terephthalate
Polymers
Raman spectra
TAD
Thermal stability
Thermogravimetric analysis
triazine
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ISSN0021-8995
1097-4628
DOI10.1002/app.54069

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Summary:A 9,10‐dihydro‐9‐oxa‐10 phosphophenanthrene‐10‐oxide based derivative tris‐(3‐dopo‐propyl)‐triazine trione (TAD) is applied to polyethylene terephthalate (PET). The melting and blending process of the composite is carried out through twin screws. The flame retardancy, thermostability, and mechanical property have elevated with slight load agent. The limiting oxygen index (LOI), vertical burning test (UL 94), and cone calorimeter test are proceeded to sustain the flame retardancy of PET/TAD‐x. The 30.2% LOI value and UL 94V‐1 rating will be attained with 5 wt% load, the peak of heat release rate show 33.4% decrease, concurrently. The thermogravimetric analysis is performed to characterized the constancy of flame retardant composites during the heating process. Relevant evidence express that TAD provided appreciable assistance in improving carbon‐forming capacity and postponing initial decomposition temperature. The Raman spectra, TG‐Fourier transform infrared, Hot‐Stage FTIR are used to explain the connection about the optimization of performance and the alteration of products in pyrolyzing or after pyrolyzation. In addition, the mechanical properties are supported via tensile and impact test. This study confirms TAD has great potential competitiveness in future halogen‐free flame retardant applications as viable and environmentally friendly to polyester material.
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ISSN:0021-8995
1097-4628
DOI:10.1002/app.54069