Recently, attention has been drawn to the use of bio-reinforced composites in automotive, construction, packaging and medical applications due to increased concern for environmental sustainability. Green polymer nanoc...Recently, attention has been drawn to the use of bio-reinforced composites in automotive, construction, packaging and medical applications due to increased concern for environmental sustainability. Green polymer nanocomposites show unique properties of combining the advantages of natural fillers and organic polymers. Plant fibers are found suitable to reinforce polymers. They have relatively high strength and stiffness, low cost of acquisition, low density and produce low CO2 emission. They are also biodegradable and are annually renewable compared to other fibrous materials. Organic polymers on the other hand, are desirable because they are either recyclable or biodegradable without causing environmental hazards. This paper reviews current research efforts, techniques of production, trends, challenges and prospects in the field of green nanocomposites.展开更多
Natural fibers can play a major role in composite industry due to its renewable, biodegradable, and eco-friendly properties. Areca Fruit Husk （AFH） is rich in fiber, but is wasted in large quantity from tobacco indu...Natural fibers can play a major role in composite industry due to its renewable, biodegradable, and eco-friendly properties. Areca Fruit Husk （AFH） is rich in fiber, but is wasted in large quantity from tobacco industries. Comprehensive characterization of AFH fiber is done to examine its morphological, physical, mechanical, chemical and thermal properties. High cellulose content of the fiber （57.35 wt%） provides better tensile strength （231.66 MPa） whereas the porous surface morphology （40.8 %） ensures better bonding with the matrix. Moreover, the low density of the fiber （0.78 g.cm^-3） makes it an attractive alternative for hazardous synthetic fibers. The semi-crystalline nature and large crystalline size of the fiber reduce the water absorption char- acteristics. The thermo gravimetric analysis confirms its stability up to 240℃, which is higher than the polymerization tem- perature. The results confirm the potential of AFH fibers as a reinforcement in bio-reinforced polymer composites for automo- tive and structural applications.展开更多
文摘Recently, attention has been drawn to the use of bio-reinforced composites in automotive, construction, packaging and medical applications due to increased concern for environmental sustainability. Green polymer nanocomposites show unique properties of combining the advantages of natural fillers and organic polymers. Plant fibers are found suitable to reinforce polymers. They have relatively high strength and stiffness, low cost of acquisition, low density and produce low CO2 emission. They are also biodegradable and are annually renewable compared to other fibrous materials. Organic polymers on the other hand, are desirable because they are either recyclable or biodegradable without causing environmental hazards. This paper reviews current research efforts, techniques of production, trends, challenges and prospects in the field of green nanocomposites.
文摘Natural fibers can play a major role in composite industry due to its renewable, biodegradable, and eco-friendly properties. Areca Fruit Husk （AFH） is rich in fiber, but is wasted in large quantity from tobacco industries. Comprehensive characterization of AFH fiber is done to examine its morphological, physical, mechanical, chemical and thermal properties. High cellulose content of the fiber （57.35 wt%） provides better tensile strength （231.66 MPa） whereas the porous surface morphology （40.8 %） ensures better bonding with the matrix. Moreover, the low density of the fiber （0.78 g.cm^-3） makes it an attractive alternative for hazardous synthetic fibers. The semi-crystalline nature and large crystalline size of the fiber reduce the water absorption char- acteristics. The thermo gravimetric analysis confirms its stability up to 240℃, which is higher than the polymerization tem- perature. The results confirm the potential of AFH fibers as a reinforcement in bio-reinforced polymer composites for automo- tive and structural applications.
