| Abstract [eng] |
The natural fiber is reinforced with thermoplastic and thermosetting matrices to replace conventional polymer composite treated with industrial fibers. Natural fibers are increasingly considered environmentally friendly synthetic fiber replacements to enhance polymer composites. Hemp fibers are vegetable fibers, the carbon dioxide released into the atmosphere when burned during processing is lower than during plant growth. Although the strength of natural fibers is considerably less than that of glass fibers, however, when the natural fibers specific module (specific weight module) is taken into account, the natural fiber values are similar or even better than glass fibers. Natural fibers are a very beneficial composite reinforcement because they are readily available, renewable, and economical. Already in the near future, European industry has planned to increase the consumption of local raw materials for biodegradable flax and hemp fibers. It also supports economically weak countries where crops grown can be used in the production of bio-composites. The European Union's Sustainable Development Strategy, the production of textile composites from bio-degradable materials is one of the priorities for future production. In the final project, different types of hemp (uncoated fibers, combed fibers, shawls) and PLA polymer bio-composites were designed and manufactured. The influence of composition and structure of different cannabis on the mechanical properties, strength and bending of bio-composites was determined. Studies have shown that hemp fiber biocomposites that contain combed cannabis fibers have good resistance, bending strength and strength. Composites containing chocolate or non-woven fibers did not show such good mechanical properties. |
