Flame retardancy of rice straw-polyethylene composites affected by in situ polymerization of ammonium polyphosphate/silica

Jiang, Dong; Pan, Mingzhu; Cai, Xichen; Zhao, Yuting

doi:10.1016/j.compositesa.2018.02.023

Cited by 55 publications

(28 citation statements)

References 30 publications

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“…The XPS can provide information pertaining to the elemental composition and content of untreated and treated cellulose that supplements the FTIR and SEM-EDS results. Figure 3c further shows the XPS spectra of samples, and the peaks at 133, 285, 401, and 531 eV could be assigned to P2p, C1s, N1s, and O1s of untreated and treated cellulose, respectively [31]. As for the P-doped cellulose, the C element is reduced to 28.70 wt % from 53.12 wt % (untreated cellulose), and the P element is significantly increased to 22.51 wt %.…”

Section: Chemical Property Of Pn-doped Cellulose Fibrilsmentioning

confidence: 88%

Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose Fibrils

et al. 2020

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To derive P,N-doped cellulose fibrils, phosphoric acid and aqueous ammonia were placed in a one-pot reaction, and the phosphate groups and ammonium phosphates were successfully introduced into the cellulose surface. The obtained P,N-doped cellulose fibrils with high liberation were thereafter incorporated into a high-density polyethylene (HDPE) matrix to improve the flame retardancy of HDPE composites, and they had a significant improvement on flame retardancy of HDPE composites. In particular, 7 wt % P,N-doped cellulose fibrils considerably reduced the average and peak heat release rate (HRR) by 29.6% and 72.9%, respectively, and increased the limited oxygen index (LOI) by 30.5%. The presence of phosphate groups and ammonium phosphates within P,N-doped cellulose fibrils was found to promote the thermal degradation of HDPE composites at a lower temperature (i.e., 240 °C). The released acid catalyzed the dehydration of cellulose to form an aromatic carbonaceous structure with a higher crystalline orientation, which improves the flame retardancy of HDPE composites.

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Section: Chemical Property Of Pn-doped Cellulose Fibrilsmentioning

confidence: 88%

Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose Fibrils

et al. 2020

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“…In addition, IFR expanded and released noble gases to dilute combustible gases during combustion. [33] In one word, the addition of SiO 2 @MAPP improved the combustion properties of LDPE composites to a certain extent. [34]…”

Section: Loi and Ul-94 Analysismentioning

confidence: 99%

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO₂@MAPP and double pentaerythritol

Shan

et al. 2020

J of Applied Polymer Sci

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To improve the flame‐retardant property of low‐density polyethylene (LDPE) composites, a novel intumescent flame retardant (IFR) consisting of ammonium polyphosphate (APP) covered by silicon dioxide and 3‐(Methylacryloxyl) propyltrimethoxy silane (KH‐570) (SiO2@MAPP) and double pentaerythritol (DPER) was synthesized. Various methods were applied to structural characterization and property investigations of different samples. The results indicated that the solubility of APP decreased after coating with silicon dioxide (SiO2) and KH‐570. The flame retardancy of LDPE composites was improved with addition of IFR containing SiO2@MAPP/DPER. With 30 wt% addition of IFR containing SiO2@MAPP /DPER, the limiting oxygen index reached 26.8% and the tensile strength was 3.30 MPa. The tensile strength was 7.14% higher than that of 30 wt% IFR without SiO2@MAPP. The smoke density test showed that the flue gas emission was obviously improved. The addition of SiO2@MAPP effectively increased the residual carbon content of composites and thermal stability of the composites.

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“…According to Antunes, et al, rice straw fibre BCB is a suitable material for buildings refurbishment due to its bulk density, thermal conductivity, ultrasound velocity, flexural strength, abrasion and fire resistance [148]. Rice straw fibres reinforced with ammonium polyphosphate polyelectrolyte modified high-density polyethylene had good limited oxygen index (LOI) of 23.5%, and peak heat release rate of 488.4 kW m −2 [149]. It was also confirmed that the addition of ammonium polyphosphate increased the flame retardancy of the polypropylene and straw fibre BCB with a significant increase in LOI [125].…”

Section: Fibre Typementioning

confidence: 99%

Key advances in development of straw fibre bio-composite boards: An overview

Aladejana

Fan

2020

Mater. Res. Express

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In recent years, considerable attention have been given to the development and utilization of biodegradable fibres for bio-composite boards. This is due to the increase in the environmental consciousness and the need for sustainable development which enable establishment of new materials majorly for packaging, aircraft, furniture, and automobile. Straw fibres (wheat, rice, and corn fibre) are the most available natural agricultural wastes products, which has been utilized for the production of these new materials. This paper hence reviews the enhancement in production methodology and properties of the straw fibres bio-composite boards to add further scientific knowledge to the potentiality of using agricultural fibres as value added products. The future replacement of conventional wood fibres for the production of bio-composite panels, especially with agricultural wastes, could be centered on straw fibres. The introduction of straw fibres in polymer matrices were presented based on various research outcomes. Biodegradable fibres could be regarded as a good fibrous composite material. Although, more efforts are still needed in developing facile straw fibre composite production methods and materials with robust industrial and domestic applications.

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Flame retardancy of rice straw-polyethylene composites affected by in situ polymerization of ammonium polyphosphate/silica

Cited by 55 publications

References 30 publications

Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose Fibrils

Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose Fibrils

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO₂@MAPP and double pentaerythritol

Key advances in development of straw fibre bio-composite boards: An overview

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Flame retardancy of rice straw-polyethylene composites affected by in situ polymerization of ammonium polyphosphate/silica

Cited by 55 publications

References 30 publications

Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose Fibrils

Flame Retardancy of High-Density Polyethylene Composites with P,N-Doped Cellulose Fibrils

Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO2@MAPP and double pentaerythritol

Key advances in development of straw fibre bio-composite boards: An overview

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Investigation of novel intumescent flame retardant low‐density polyethylene based on SiO₂@MAPP and double pentaerythritol