Microencapsulated ammonium polyphosphate with boron-modified phenolic resin

2016 ◽  
Vol 133 (30) ◽  
Author(s):  
Weiying Gao ◽  
Shujun Wang ◽  
Fanbin Meng ◽  
Yuanhao Wang ◽  
Huanqing Ma
Keyword(s):  
Phenolic Resin ◽  
Ammonium Polyphosphate ◽  
Microencapsulated Ammonium Polyphosphate

Effect of TBPF Microencapsulated Ammonium Polyphosphate on the Properties of Thermoplastic Polyurethane Elastomer

2020 ◽  
Vol 842 ◽  
pp. 16-21
Author(s):  
Wei Ying Gao
Keyword(s):  
Phenolic Resin ◽  
Thermoplastic Polyurethane ◽  
Ammonium Polyphosphate ◽  
Polyurethane Elastomer ◽  
Flame Resistance ◽  
Cone Calorimetry ◽  
Limiting Oxygen Index ◽  
Elongation At Break ◽  
Hard Shell ◽  
Thermoplastic Polyurethane Elastomer

In our previous work, ammonium polyphosphate (APP) microcapsule with the shell of boron modified phenolic resin (BPF) was prepared, recorded as BPFAPP. However, the compatibility and the flame retardancy of BPFAPP in thermoplastic polyurethane elastomer (TPU) are still not very good due to the brittle and hard shell wall. To improve the brittleness of microcapsules shell and the property reinforcements of APP in TPU, APP was encapsulated with the tung oil and boron modified phenolic resin (TBPF) in this paper, recorded as TBPFAPP. The property reinforcements of TBPFAPP in TPU were studied. The thermogravimetry, limiting oxygen index and cone calorimetry analysis showed that TPU/TBPFAPP composite had higher char yield and better flame resistance. The tensile strength and elongation at break showed that the mechanical properties were also significantly improved due to the introduction of α-Eleostearate.

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