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Title: Advancing flame retardant prediction: A self-enforcing machine learning approach for small datasets

Improving the fireproof performance of polymers is crucial for ensuring human safety and enabling future space colonization. However, the complexity of the mechanisms for flame retardant and the need for customized material design pose significant challenges. To address these issues, we propose a machine learning (ML) framework based on substructure fingerprinting and self-enforcing deep neural networks (SDNN) to predict the fireproof performance of flame-retardant epoxy resins. Our model is based on a comprehensive understanding of the physical mechanisms of materials and can predict fireproof performance and eliminate the needs for properties descriptors, making it more convenient than previous ML models. With a dataset of only 163 samples, our SDNN models show an average prediction error of 3% for the limited oxygen index (LOI). They also provide satisfactory predictions for the peak of heat release rate PHR and total heat release (THR), with coefficient of determination (R2) values of 0.87 and 0.85, respectively, and average prediction errors less than 17%. Our model outperforms the support vector model SVM for all three indices, making it a state-of-the-art study in the field of flame retardancy. We believe that our framework will be a valuable tool for the design and virtual screening of flame retardants and will contribute to the development of safer and more efficient polymer materials.

 
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Award ID(s):
1946231
NSF-PAR ID:
10496338
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
https://pubs.aip.org/aip/apl/article-abstract/122/25/251902/2897699/Advancing-flame-retardant-prediction-A-self?redirectedFrom=PDF
Date Published:
Journal Name:
Applied Physics Letters
Volume:
122
Issue:
25
ISSN:
0003-6951
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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