Effect of Nano Anhydrous Magnesium Carbonateon Fire-Retardant Performance of Polylactic Acid/Bamboo Fibers Composites

2011 ◽  
Vol 11 (12) ◽  
pp. 10620-10623 ◽  
Author(s):  
Xingong Li ◽  
Yiqiang Wu ◽  
Xia Zheng
Keyword(s):  
Polylactic Acid ◽  
Fire Retardant ◽  
Bamboo Fibers

scholarly journals Intumescent Biobased-Polylactide Films to Flame Retard Nonwovens

2009 ◽  
Vol 4 (2) ◽  
pp. 155892500900400 ◽  
Author(s):  
Christelle Reti ◽  
Mathilde Casetta ◽  
Sophie Duquesne ◽  
René Delobel ◽  
Jérémie Soulestin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Flame Spread ◽  
Renewable Resources ◽  
Fire Retardant ◽  
Ammonium Polyphosphate ◽  
Cone Calorimetry ◽  
New Process ◽  
Potential Use

The work focuses on the development of a new process to flame retard nonwovens, using films based on renewable resources. Films consist in intumescent formulations of polylactic acid (PLA), ammonium polyphosphate (APP) blended with lignin or starch and are coated on hemp or wool nonwovens. The objective of this study was to investigate the fire retardant and mechanical properties of textiles protected by FR PLA films for potential use in building applications. Horizontal and vertical flame spread tests as well as cone calorimetry tests show that flammability properties of nonwovens are significantly improved. Better mechanical properties are also obtained with coated nonwovens.

scholarly journals Intumescent-Grafted Bamboo Charcoal: A Natural Nontoxic Fire-Retardant Filler for Polylactic Acid (PLA) Composites

ACS Omega ◽  
2021 ◽  
Author(s):  
Liang Zhang ◽  
Weisheng Chai ◽  
Wenzhu Li ◽  
Kate Semple ◽  
Ningning Yin ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Fire Retardant ◽  
Bamboo Charcoal

How to improve mechanical properties of polylactic acid with bamboo fibers

2007 ◽  
Vol 43 (2) ◽  
pp. 775-787 ◽  
Author(s):  
Ryoko Tokoro ◽  
Duc Minh Vu ◽  
Kazuya Okubo ◽  
Tatsuya Tanaka ◽  
Toru Fujii ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Bamboo Fibers

scholarly journals Enhancement of Flame Retardancy and Mechanical Properties of Polylactic Acid with a Biodegradable Fire-Retardant Filler System Based on Bamboo Charcoal

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2167
Author(s):  
Wenzhu Li ◽  
Liang Zhang ◽  
Weisheng Chai ◽  
Ningning Yin ◽  
Kate Semple ◽  
...  
Keyword(s):  
Heat Release ◽  
Polylactic Acid ◽  
Flame Retardancy ◽  
Chemical Elements ◽  
Fire Retardant ◽  
Strength Properties ◽  
Bamboo Charcoal ◽  
Adhesion Promoter ◽  
Limiting Oxygen Index ◽  
Air Atmosphere

A cooperative flame-retardant system based on natural intumescent-grafted bamboo charcoal (BC) and chitosan (CS) was developed for polylactic acid (PLA) with improved flame retardancy and minimal decline in strength properties. Chitosan (CS) as an adhesion promoter improved the interfacial compatibility between graft-modified bamboo charcoal (BC-m) and PLA leading to enhanced tensile properties by 11.11% and 8.42%, respectively for tensile strength and modulus. At 3 wt.% CS and 30 wt.% BC-m, the crystallinity of the composite increased to 38.92%, or 43 times that of pure PLA (0.9%). CS promotes the reorganization of the internal crystal structure. Thermogravimetric analysis showed significantly improved material retention of PLA composites in nitrogen and air atmosphere. Residue rate for 5 wt.% CS and 30 wt.% BC-m was 29.42% which is 55.1% higher than the theoretical value of 18.97%. Flammability tests (limiting oxygen index-LOI and UL-94) indicated significantly improved flame retardancy and evidence of cooperation between CS and BC-m, with calculated cooperative effectiveness index(Ce) >1. From CONE tests, the peak heat release rate (pHRR) and total heat release (THR) were reduced by 26.9% and 30.5%, respectively, for 3% CS + 20% BC-m in PLA compared with adding 20% BC-m alone. Analysis of carbon residue morphology, chemical elements and structure suggest CS and BC-m form a more stable char containing pyrophosphate. This char provides heat insulation to inhibit complete polymer pyrolysis, resulting in improved flame retardancy of PLA composites. Optimal mix may be recommended at 20% BC-m + 3% CS to balance compatibility, composite strength properties and flame retardance.

The influence of hot-press temperature and cooling rate on thermal and physicomechanical properties of bamboo particle-polylactic acid composites

Holzforschung ◽  
2013 ◽  
Vol 67 (3) ◽  
pp. 325-331 ◽  
Author(s):  
Tung-Lin Wu ◽  
Yi-Chi Chien ◽  
Tsai-Yung Chen ◽  
Jyh-Horng Wu
Keyword(s):  
Polylactic Acid ◽  
Natural Fiber ◽  
Thermomechanical Properties ◽  
Hot Press ◽  
Press Temperature ◽  
Plastic Composite ◽  
Large Size ◽  
Reinforced Plastic ◽  
Superior Mechanical Properties ◽  
Bamboo Fibers

Abstract Extrusion and injection moldings are standard processes for fabricating natural fiber-reinforced plastic composites, but both processes are generally not suitable for production of large-size pieces and products with high loadings of lignocelluloses. In this study, a medium-density bamboo plastic composite (BPC) was completely and successfully manufactured from bamboo fibers and polylactic acid (PLA) in the ratio of 1:1 by the flat-platen pressing process. The effects of pressing and cooling parameters on the thermomechanical properties of the BPCPLA have been investigated. The BPCPLA prepared at temperatures >180°C and cooling rates >10°C min-1 exhibited superior mechanical properties and matrix crystallinity. Under these conditions, a stronger interaction between the filler and the polymer matrix occurs and the mobility of the molecular chains at the interface decreases, which leads to a higher stiffness of the composite.

Advances in fire retardant materials

2008 ◽  
Author(s):  
A. R. Horrocks ◽  
D. Price
Keyword(s):  
Fire Retardant ◽  
In Fire

Fire retardant materials

2001 ◽  
Author(s):  
A R Horrocks ◽  
D Price
Keyword(s):  
Fire Retardant
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