Abstract:
The interest in using natural fibers as reinforcing element in composite material based on polymric matrices is constantly using, mainly because of the many advantage associated with this renewable matrials. Thi sstudy was carried out to investigate effect corona plasma radiation to kapok and balsa fiber in natural fiber composite with polypropylene matrices. The corona plasma radiations incandescent using a high voltage DC (0-4) Kv by observing a current value of 0.5 mA and an output voltage of 14 kV in atmospheric pressure. Field-point electrodes come from PCB fiber size 15x15 cm. The point electrode uses 100 stainless steel needles measuring 0.5 mm and 1.6 cm long. The distance between the electrode points and fields is 18 mm and the radiation time variation is 10, 20 and 30 minutes. Results show that Corona plasma radiations treatment with 20 minutes and 30 minutes are increase crystallinity index and surfaces wettability fibers than fibers untreated. Tensile strength and modulus of elasticity natural composite are increae in 10,20, and 30 minutes radiations thus being appropriate for technical applications.
