Flame retardancy of rice husk-filled high-density polyethylene ecocomposites

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.

Download Full-text

Char barrier effect of graphene nanoplatelets on the flame retardancy and thermal stability of high-density polyethylene flame-retarded by brominated polystyrene

Journal of Applied Polymer Science ◽

10.1002/app.40520 ◽

2014 ◽

Vol 131 (15) ◽

pp. n/a-n/a ◽

Cited By ~ 21

Author(s):

Shiya Ran ◽

Chao Chen ◽

Zhenghong Guo ◽

Zhengping Fang

Keyword(s):

Thermal Stability ◽

Flame Retardancy ◽

High Density Polyethylene ◽

Graphene Nanoplatelets ◽

High Density ◽

Barrier Effect ◽

Flame Retarded ◽

Brominated Polystyrene ◽

Thermal Stability Of

Download Full-text

Rice husk ash – A valuable reinforcement for high density polyethylene

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2012.04.035 ◽

2012 ◽

Vol 41 ◽

pp. 1-7 ◽

Cited By ~ 51

Author(s):

E.P. Ayswarya ◽

K.F. Vidya Francis ◽

V.S. Renju ◽

Eby Thomas Thachil

Keyword(s):

Rice Husk ◽

High Density Polyethylene ◽

Rice Husk Ash ◽

High Density ◽

Valuable Reinforcement

Download Full-text

Enhancement of Processability of Rice Husk Filled High-density Polyethylene Composite Profiles

Journal of Thermoplastic Composite Materials ◽

10.1177/0892705705054398 ◽

2005 ◽

Vol 18 (5) ◽

pp. 445-458 ◽

Cited By ~ 47

Author(s):

S. Panthapulakkal ◽

S. Law ◽

M. Sain

Keyword(s):

Rice Husk ◽

High Density Polyethylene ◽

High Density ◽

Polyethylene Composite

Download Full-text

DRY RICE HUSK FILLER EFFECT TO TENSILE BEHAVIORS OF RECYCLED HIGH-DENSITY POLYETHYLENE (HDPE)-BASED GREEN COMPOSITES

Journal of Southwest Jiaotong University ◽

10.35741/issn.0258-2724.56.4.9 ◽

2021 ◽

Vol 56 (4) ◽

pp. 82-91

Author(s):

Dalhar Susanto ◽

Mochamad Chalid ◽

Widyarko ◽

Intan Chairunnisa ◽

Cut Sannas Saskia

Keyword(s):

Oryza Sativa ◽

Tensile Properties ◽

Rice Husk ◽

High Density Polyethylene ◽

Building Materials ◽

Natural Fiber ◽

Oryza Sativa L ◽

Plastic Waste ◽

High Density ◽

Asian Rice

The possibility of using plastic waste to manufacture hybrid bio-composite materials with the dry husk of Asian rice (Oryza sativa L.) is investigated. The most polluted and unsustainable plastic waste is High-Density Polyethylene (HDPE) due to its single-use, which decreases in quality if it is reused is selected. The mixtures chosen are local natural fiber and easy to find, potentially a preliminary study of a composites building material. Furthermore, to improve the tensile properties of this hybrid bio-composite material, an additional organic filler is used, such as rice husk (Oryza sativa L.) in a combination of 10%, 12%, and 15%. Samples for this study were processed using the hot press methods based on ASTM D882. Tested for tensile strength, modulus young, yield stress, and elongation is carried out to see an increase in the performance of the biocomposite material. The test results show that the best tensile properties are samples with 12% rice husk, resulting in excellent sample compatibility proofed by Scan Electron Microscopy to study bio-morphological composites. This project has shown that the composites based on natural fiber will be potential building materials due to their improved tensile properties.

Download Full-text