Flame-retardant expandable polystyrene foams coated with ethanediol-modified melamine-formaldehyde resin and microencapsulated ammonium polyphosphate

2018 ◽  
Vol 135 (28) ◽  
pp. 46471 ◽  
Author(s):  
Sheng Zhang ◽  
Wenfei Ji ◽  
Yi Han ◽  
Xiaoyu Gu ◽  
Hongfei Li ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Ammonium Polyphosphate ◽  
Formaldehyde Resin ◽  
Melamine Formaldehyde ◽  
Melamine Formaldehyde Resin ◽  
Expandable Polystyrene ◽  
Microencapsulated Ammonium Polyphosphate

Preparation of Melamine Formaldehyde Resin Modified with Pentaerythritol and its Flame Retardant Effect in Polypropylene

2020 ◽  
Vol 1003 ◽  
pp. 205-212
Author(s):  
Fu Long Zhou ◽  
Hong Zhi Wu ◽  
Ming Mei Sun ◽  
Xin Zhu ◽  
Lin Sheng Tang
Keyword(s):  
Flame Retardant ◽  
Flame Retardancy ◽  
Raw Materials ◽  
Formaldehyde Resin ◽  
Melamine Formaldehyde ◽  
Cone Calorimetry ◽  
Melamine Formaldehyde Resin ◽  
Ft Ir ◽  
C Nmr

A new triazine charring agent, melamine formaldehyde resin modified with pentaerythritol (named as MF-MPOL), was synthesized through hydroxymethylation, condensation and etherification by using melamine, paraformaldehyde and pentaerythritol as raw materials, and characterized by solid-state 13C NMR and FT-IR. The intumescent flame retardant (IFR) consisting of MF-MPOL with ammonium polyphosphate has good flame retardancy in polypropylene (PP). The analysis of the residues obtained in cone calorimetry test showed that the IFR played a role of flame retardancy mainly in condensed phase. In other words, the porous and dense - continuous intumescent char layer formed during the burning process results in flame retardant effect by insulation of heat, oxygen and preventing the underlying PP from degradation and volatilization of pyrolytic products.

Flame Retardation of PP/EPDM Composites Containing Ammonium Polyphosphate and its Microcapsules

2011 ◽  
Vol 415-417 ◽  
pp. 399-402
Author(s):  
Zheng Zhou Wang ◽  
Zhong Qian Gu ◽  
Ping Kai Jiang
Keyword(s):  
Mechanical Properties ◽  
Ammonium Polyphosphate ◽  
Formaldehyde Resin ◽  
Melamine Formaldehyde ◽  
Melamine Formaldehyde Resin ◽  
Flame Retarded ◽  
Ul 94 ◽  
Flame Retardation ◽  
Better Than

Flame retardation of PP/EPDM blend containing ammonium polyphosphate or its microcapsule (MFAPP) combined with dipentaerythritol (DPER) was evaluated by LOI and UL -94 methods. It is found that MFAPP is better than APP in exerting flame retardation in the PP/EPDM. No apparent improvement in flame retardation for APP and MFAPP in combination with DPER in the PP/EPDM blend. SEM results show that microencapsulation of APP with the melamine–formaldehyde resin leads to some improvement in its dispersion in the blend. Moreover, mechanical properties of the flame retarded PP/EPDM composites are studied.

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