Use of Thermoplastic Polyurethanes as Carbonisation Agents in Intumescent Blends. Part 3: Modification of the Dynamic Properties of Polypropylene/Thermoplastic Polyurethane/Ammonium Polyphosphate Formulations with Heat and Stress

2000 ◽  
Vol 18 (2) ◽  
pp. 104-129
Author(s):  
MICHEL BUGAJNY ◽  
MICHEL LE BRAS ◽  
ALAIN NOEL ◽  
SERGE BOURBIGOT
2020 ◽  
Vol 842 ◽  
pp. 16-21
Author(s):  
Wei Ying Gao

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.


ACS Omega ◽  
2020 ◽  
Vol 5 (11) ◽  
pp. 6051-6061 ◽  
Author(s):  
Xilei Chen ◽  
Yongxing Lai ◽  
Yuanxiang Gu ◽  
Chuanmei Jiao ◽  
Shaoxiang Li

2019 ◽  
Vol 13 (4) ◽  
pp. 343-348
Author(s):  
Adam Gnatowski ◽  
Rafał Gołębski ◽  
Piotr Sikora

A comparative analysis of the thermomechanical properties of semicrystalline and amorphous polymeric materials was carried out. Samples were produced by using a 3D printing technology on the SIGNAL printer - ATMAT. The following polymeric materials were used to make the samples: TPU-thermoplastic polyurethane elastomer, ABScopolymer acrylonitrile-butadiene-styrene, Nosewood, PET-ethylene terephthalate, PLA-poly (lactic acid). The research included a thermal analysis of the dynamic properties (DMTA) of manufactured materials.


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