PENGARUH MALEATED POLYPROPYLENE (MAPP) TERHADAP KUATAN TARIK KOMPOSIT SISAL POLYPROPYLENE (PP); THE INFLUENCE OF MALEATED POLYPROPYLENE (MAPP) ON THE TENSILE STRENGTH OF SISAL POLYPROPYLENE (PP) COMPOSITE

NAHYUDIN, AHMAD, Kuwat Triyana

2016 | Skripsi | FMIPA

Composite reinforcing sisal-fiber with a matrix of polypropyline (PP) has been created through the stage of treatment fiber with the treatment of scouring and molding composites. Sisal fiber is previously devided into three parts (base, middle, and end) for a single fiber-tensile test. The best part of fiber will be used as a reinforcing composite. Scouring is made by soaking the dry sisal fiber in a solution of 60 g/L NaOH at temperature 100 oC for a hour. Molding composites involves of mixing fiber (50% of mass) with 1 mm size and plastic pieces PP which is 17 cm x 2 cm size (50% of mass) with the type of laminated composites (layers), carried on the process of hot press with 5.5 MPa pressure at 170 o C temperature for 3 minutes. SEM test shows that scourcing process is able to decrease non-cellulosic component of fiber wrapping. Mechanical testing on sisal-PP composites shows that the addition of 5% MAPP can improve the mechanical properties of composites and composite type corresponding an American Society for Testing and Materials (ASTM) D638-02a type. The result of SEM analysis shows that the best bond between the reinforcing material (sisal fiber) with matrix (PP) and the best mechanical properties of sisal fiber composites are a raw sisal-fiber composites with additioning 5% MAPP.

Kata Kunci : Sisal fiber, composites, MAPP, scouring, Tensile strength ASTM D638-02a, SEM.