Development of a Semiglobal Reaction Mechanism for the Thermal Decomposition of a Polymer Containing Reactive Flame Retardants: Application to Glass-Fiber-Reinforced Polybutylene Terephthalate Blended with Aluminum Diethyl Phosphinate and Melamine Polyphosphate
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Simultaneous Thermal Analysis (STA)
2.3. Microscale Combustion Calorimetry
2.4. Modeling
3. Results and Discussion
3.1. Overall Approach to Reaction Model Development
3.2. Inverse Modeling of TGA and DSC Data for PBT/GF25
3.3. Inverse Modeling of TGA and DSC Data for PBT/GF/DEPAL
3.4. Inverse Modeling of TGA and DSC Data for PBT/GF/MPP
3.5. Inverse Modeling of MCC Data
3.6. Model Performance at Different Heating Rates
3.7. Modeling of Different Material Compositions
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Formulation Name | PBT (wt %) Ultradur B4500 | GF (wt %) Glassfiber PPG 3786 | DEPAL (wt %) Exolit OP 1240 | MPP (wt %) Melapur 200 | |
---|---|---|---|---|---|
Model Development | PBT/GF25 | 75 | 25 | 0 | 0 |
PBT/GF25-DEPAL8 | 67 | 25 | 8 | 0 | |
PBT/GF25-DEPAL16 | 59 | 25 | 16 | 0 | |
PBT/GF25-MPP4 | 71 | 25 | 0 | 4 | |
PBT/GF25-MPP8 | 67 | 25 | 0 | 8 | |
Model Validation | PBT | 100 | 0 | 0 | 0 |
PBT/GF25-DEPAL8-MPP4 | 63 | 25 | 8 | 4 | |
PBT/GF25-DEPAL16-MPP8 | 51 | 25 | 16 | 8 |
Reactive Blend Components | # | Reaction Equation |
---|---|---|
PBT | 1 | PBT PBT_Melt |
2 | PBT_Melt 0.84 PBT_Res1 + 0.16 PBT_Gas1 | |
3 | PBT_Res1 0.12 PBT_Res2 + 0.88 PBT_Gas2 | |
PBT and DEPAL | 4 | DEPAL 0.07a DEPAL_Res1 + 0.93a DEPAL_Gas1 |
5 | PBT_Melt + 3.6 DEPAL 2.0 PBT_DEPAL_Res1 + 2.6 PBT_DEPAL_Gas1 | |
PBT and MPP | 6 | MPP 0.4 MPP_Res1 + 0.6 MPP_Gas1 |
7 | PBT_Res1 + 0.04 MPP 0.92 PBT_MPP_Res1 + 0.12 PBT_MPP_Gas1 | |
8 | PBT_MPP_Res1 0.07 PBT_MPP_Res2 + 0.93 PBT_MPP_Gas2 |
# | A (s−1 or m3·kg−1·s−1) | E (J·mol−1) | h (J·kg−1) | # | A (s−1 or m3·kg−1·s−1) | E (J·mol−1) | h (J·kg−1) |
---|---|---|---|---|---|---|---|
1 | 5 | ||||||
2 | 6 | ||||||
3 | 7 | ||||||
4 | 8 |
Component | c (J·kg−1·K−1) | Component | c (J·kg−1·K−1) |
---|---|---|---|
PBT | DEPAL_Res1 | ||
PBT_Melt | PBT_DEPAL_Res1 | ||
PBT_Res1 | MPP | ||
PBT_Res2 | MPP_Res1 | ||
GF | () a | PBT_MPP_Res1 | |
DEPAL | PBT_MPP_Res2 |
Component | hc (J·kg−1) | Component | hc (J·kg−1) | Component | hc (J·kg−1) |
---|---|---|---|---|---|
PBT_Gas1 | PBT_DEPAL_Gas1 | PBT_MPP_Gas1 | |||
PBT_Gas2 | MPP_Gas1 | PBT_MPP_Gas2 | |||
DEPAL_Gas1 |
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Ding, Y.; Stoliarov, S.I.; Kraemer, R.H. Development of a Semiglobal Reaction Mechanism for the Thermal Decomposition of a Polymer Containing Reactive Flame Retardants: Application to Glass-Fiber-Reinforced Polybutylene Terephthalate Blended with Aluminum Diethyl Phosphinate and Melamine Polyphosphate. Polymers 2018, 10, 1137. https://doi.org/10.3390/polym10101137
Ding Y, Stoliarov SI, Kraemer RH. Development of a Semiglobal Reaction Mechanism for the Thermal Decomposition of a Polymer Containing Reactive Flame Retardants: Application to Glass-Fiber-Reinforced Polybutylene Terephthalate Blended with Aluminum Diethyl Phosphinate and Melamine Polyphosphate. Polymers. 2018; 10(10):1137. https://doi.org/10.3390/polym10101137
Chicago/Turabian StyleDing, Yan, Stanislav I. Stoliarov, and Roland H. Kraemer. 2018. "Development of a Semiglobal Reaction Mechanism for the Thermal Decomposition of a Polymer Containing Reactive Flame Retardants: Application to Glass-Fiber-Reinforced Polybutylene Terephthalate Blended with Aluminum Diethyl Phosphinate and Melamine Polyphosphate" Polymers 10, no. 10: 1137. https://doi.org/10.3390/polym10101137