PENGARUH VARIASI JUMLAH LAPISAN FIBERGLASS DAN ANYAMAN BAMBU TERHADAP KEKUATAN BENDING KOMPOSIT DENGAN METODE VACUUM ASSISTED RESIN INFUSSION (VARI)
DOI:
https://doi.org/10.36499/jim.v15i1.2656Abstract
The objective of this research is to obtain the bending properties  of  composite  material produced by VARI method, and to get analysis of polyester resin distribution time on the layer of fiberglass  composite and bamboo woven strip.
The process of making composites varies, but the process of making this research is the process of Vacuum Assisted Resin Infusion (VARI). In the VARI process, dry fiber is placed between the fixmold and plactic bag, then the  resin  is injected  after the chamber  inside the  low- pressure plastic bag and the process continues until all parts of the fiber are wetted by the resin.
From the results of research, testing and discussion of bending test results that have been done then can be drawn conclusions include: Variation of the number of reinforcement layer on VARI method will affect the value of bending strength of composite. By using the VARI method  The highest  average value of  bending stress  occurs  in  variation  4  (206,69  MPa),  while the lowest occurs in variation 1 (42,83 MPa), and the time required for the distribution of resin varies in time variation 1 which takes 5 minutes 02 seconds, while for variation 4 takes 8 minutes 3 seconds.
Keywords: composites, VARI method, glass fiber, bending test
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