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pengaruh panjang serat dan fraksi volume pada kekuatan tarik dan impact terhadap komposit bambu apus dengan matrik resin polyester tak jenuh yang dimodifikasi styerofoam
In the last decade, the trend of developing composite materials has shifted to the use of back-tonature fibers with several advantages including low density, renewable production, low energy production, easier processing, and good heat insulation and acoustics. One natural fiber is bamboo. Bamboo is very easy to grow and has excellent mechanical properties. Utilization of bamboo fiber has not been seen by the community, especially industrial owners. As science increases in materials and materials, bamboo fiber is now being used as a composite mixing material To achieve this goal is done by making composite specimens from apus bamboo fiber with three volume fraction variations ranging from 0.2, 0.25 and 0.3 with fiber lengths of 5 mm, 10 mm and 15 mm. Bamboo fiber was treated with fiber with 8% NaOH solution for two hours. Composite manufacturing process is carried out by hand lay up and compression molding using molds made of steel plates then pressed with presses. Testing is done by testing dance and impact. Data is analyzed with twoway ANOVA. The results of the tensile strength of unsaturated bamboo / polyester fiber composites at 0.2, 0.25 and 0.3 volume fractions with 5 mm, 10 mm and 15 mm fiber lengths. It shows that by increasing the volume and length of the fiber fraction, it can increase the tensile strength of unsaturated bamboo / polyester fiber composites to volume fractions of 0.25 and 10 mm fiber length. While the results of impact testing show that impact strength tends to increase with increasing volume and length of fiber fractions.
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