Bamboo composite

In a similar study, Olek et al. fabricated LBL composites using MWNT and PEI. Two types of MWNT were used hollow and bamboo . The bamboo composites displayed moduli and strengths of 4.5 GPa and 150 MPa respectively. The hollow MWNT composites showed slightly lower values of 2 GPa and 110 MPa, respectively. To further emphasise the importance of tube type and quality, hollow nanotubes were boiled in nitric acid before composite fabrication. This resulted in much lower modulus and strength values of 0.2 GPa and 35 MPa, respectively. 

HDPE/bamboo composites with different nanoclay and maleated polyethylene (MAPE) contents were fabricated by melt compounding. The compounding characteristics, clay dispersion, HOPE crystallization, and mechanical properties of the composites were studied. The X-ray diffraction (XRD) data showed that the clay was exfoliated only when 1% clay was added to pure HOPE wifliout MAPE. For HDPE/bamboo systems, MAPE was necessary to achieve clay exfoUatiOTi. For the HDPE/bamboo fiber composites, tensile strength, bending modulus, and strength were improved with the use of MAPE however, the use of the clay in the system led to reduced mechanical properties [27]. 

Mechanical behavior of bamboo and bamboo composite. J. Mater. Sd.,... 

Figure 10 shows the dynamical mechanical testing results at frequencies from 0.1 to 100 Hz and in the temperature range from room temperature to 200 °C. The storage, loss moduli and tan 8 at 1 Hz were plotted on Figure 11 for eomparison of different compositions. The storage modulus at 40 °C at 1 Hz is plotted as a function of bamboo composition in Figure 12. The maximum storage modulus of about 5 GPa is observed at a bamboo eomposition of 40 wt. %.

Figure 12. The storage modulus E of compression molded bamboo-PET coupon at 1 Hz as a function of bamboo compositions.

Figure 14. The activation energies of bamboo-PET composites calculated from tTs as a function of bamboo composition.

What do bamboo stalks, mud bricks, steel-belted radial tires, fiberglass fishing rods, reinforced concrete, and the heat tiles on a space shuttle have in common The answer is that these materials are all composites. A composite is a material consisting of two or more components with overall properties different from and superior to either or any one of the individual components. For example, many pleasure boats today have hulls made of a composite material called reinforced plastic that contains glass, plastic, carbon, or some other type of fiber embedded in plastic. The composite material is stronger, more durable, and less dense than the fibers or plastics of which it is made. 

Ku, Y. C. Chiou, C. H. "Tests on Fiber Morphology and Chemical Composition of Important Bamboos in Taiwan" Taiwan Foresty Institute Taipei, Taiwan, 1966 p 1-7. 

Abstract. IR pyrolysis of PAN and PAN based composites yields ordered graphitelike structure as well as several carbon nanostructures. Metal-carbon nanocomposites, in which the nanosized metal particles were introduced into the structure of carbon matrix in the course of IR pyrolysis of composite-precursor on the basis of PAN and metal (Gd, Pt, Ru, Re) compounds were prepared. The carbon phase of metal-carbon nanocomposites was shown to include different types of nano structured carbon particles. Bamboo-like CNT were observed in the structure of pyrolized at 910 and 1000°C composite-precursor based on PAN and GdCl3. At T=1200°C the solid carbon spheres with diameter in the range of 50-360 nm and octahedral carbon particles with the size in the range of 300-350 nm were observed. These nanostructured particles consist of carbon only or they include Gd nanoparticles incapsulated in carbon shell. IR pyrolysis of composite-precursor based on PAN as well as H2PtCl6 and RuC13 or NH4Re04 (Pt Ru(Re)=10 l) allows the preparation of Pt-Ru and Pt-Re alloys nanoparticles with 2[Pg.577]

The carbon phase of obtained metal-carbon nanocomposites was shown to contain different types of nanostructured carbon particles in parallel with main graphite-like structures. Bamboo-like carbon nanotubes (CNT) with 14-30 nm in their outer diameter were observed in structured carbon material when GdCl3 was used as a component of composite-precursor (Fig. 4). In this case IR radiation intensity provides the heating of sample to 910 and 1000°C. 

In February 2006, Japan s Mitsubishi Motors announced that it is to use the biopolymer, polybutylene succinate (PBS), in the interior of its new mini-car launched next year. In conjunction with Aichi Industrial Technology Institute, it has developed a material that uses PBS combined with bamboo fibre. PBS is composed of succinic acid, which is derived from fermented corn or cane sugar, and 1,4-butanediol. Bamboo grows quickly and is seen by Mitsubishi as a sustainable resource. In lifecycle tests, the PBS-bamboo fibre composite achieves a 50% cut in carbon dioxide emissions compared with polypropylene. Volatile organic compound levels are also drastically reduced, by roughly 85%, over processed wood hardboards. 

Lances,—1. Lances are small paper cases, two to four in. in diameter, filled with composition, and are used to mark the outlines of figures. They are attached endwise to light wooden frames or sticks of bamboo and connected by streamers or quick match. The following are some of the compositions used in these ... 

Narayana, S. K., Abdul Rahman, P. M., Bamboo Concrete Composite... 

In addition to wood, other lignocellulosic materials of commercial value, such as bamboo, kenaf, and rice straw, also lend themselves to chemical modification for use in composites. 

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