Flame retardancy and thermal degradation properties of polypropylene/wood flour composite modified with aluminum hypophosphite/melamine cyanurate

The main aim of this study was to evaluate the thermal degradation and flame retardancy of straw flour (SF)-polypropylene (PP) composites and wood flour (WF)-PP composites. Biomass silica exists in SF, despite only 18 wt% loading of ammonium polyphosphate (APP); the APP in combination with biomass silica can effectively improve the flame retardancy on total heat release, heat release rate (HRR), mass loss rate, time to ignition (TTI), and limited oxygen index; it can obtain UL-94 V-0 rating, reduce the average and peak HRR by 44% and 41%, respectively, and increase the TTI by 8%. It attributes to the interaction effect between biomass silica in SF and APP, which more effectively enhances the thermal stability of the SF/PP/APP composites at high temperature and increases the char residue. The silica could form an intercalated network in char structure and then boost the physical integrity. The enhanced physical integrity and thermal stability lead to an effectively synergetic effect on flame retardancy of SF/PP/APP composites.

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Effect of coupling agent modified intumescent flame retardant on the mechanical properties, thermal degradation behavior, and flame retardancy of wood-flour/polypropylene composites

Polymer Composites ◽

10.1002/pc.24004 ◽

2016 ◽

Vol 39 (3) ◽

pp. 826-834 ◽

Cited By ~ 9

Author(s):

Wen Wang ◽

Yao Peng ◽

Youming Dong ◽

Kaili Wang ◽

Jianzhang Li ◽

...

Keyword(s):

Mechanical Properties ◽

Thermal Degradation ◽

Flame Retardant ◽

Flame Retardancy ◽

Coupling Agent ◽

Wood Flour ◽

Intumescent Flame Retardant ◽

Degradation Behavior ◽

Polypropylene Composites ◽

Thermal Degradation Behavior

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Flame retardancy and thermal degradation properties of cotton/alginate fabric

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-016-5418-6 ◽

2016 ◽

Vol 127 (2) ◽

pp. 1543-1551 ◽

Cited By ~ 13

Author(s):

Yun Liu ◽

Jin-Chao Zhao ◽

Chuan-Jie Zhang ◽

Li Cui ◽

Yi Guo ◽

...

Keyword(s):

Thermal Degradation ◽

Flame Retardancy ◽

Degradation Properties

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Effect of a Novel Phosphorus and Silicon System on Flame Retardancy and Thermal Degradation of PC

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.430-432.3 ◽

2012 ◽

Vol 430-432 ◽

pp. 3-6

Author(s):

Wei Zhao ◽

Bin Li

Keyword(s):

Thermal Degradation ◽

Flame Retardancy ◽

Oxygen Index ◽

The Novel ◽

Direct Effects ◽

Limiting Oxygen Index ◽

Silicon System ◽

Combustion Behaviors ◽

Degradation Properties ◽

Silicon Resin

The novel phosphine was used with a silicon resin to impart flame resistancy to polycarbonate. Combustion behaviors and thermal degradation properties of flame retardancy PC have been assayed by limiting oxygen index, vertical burning test and thermogravimetric analysis. Dynamic rheological of FR-PC was also examined. Flame retardant consisted of 80 wt.% PPPO and 20 wt.% silicon resin possesses excellent flame retardancy for PC. LOI value of FR-PC is 33.0% and passes UL-94 V-0 rating. SEM revealed that the char yield as well as char properties have direct effects on the flame retardancy.

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