Mechanical properties in glass fiber PVC-foam sandwich structures from different chopped fiber interfacial reinforcement through vacuum-assisted resin transfer molding (VARTM) processing

2017 ◽  
Vol 144 ◽  
pp. 202-207 ◽  
Author(s):  
Qihui Chen ◽  
Ting Linghu ◽  
Yingju Gao ◽  
Zhi Wang ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Sandwich Structures ◽  
Resin Transfer Molding ◽  
Transfer Molding

Integrated vacuum assisted resin infusion and resin transfer molding technique for manufacturing of nano-filled glass fiber reinforced epoxy composite

2020 ◽  
pp. 152808372093233 ◽  
Author(s):  
MA Agwa ◽  
Sherif M Youssef ◽  
Soliman S Ali-Eldin ◽  
M Megahed
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Surface Finish ◽  
Composite Laminates ◽  
Epoxy Composite ◽  
Low Cost ◽  
Resin Transfer Molding ◽  
Polymeric Composite ◽  
Resin Infusion ◽  
Transfer Molding

Vacuum-Assisted Resin Infusion (VARI) and Resin Transfer Molding (RTM) techniques are the most common techniques for the manufacturing of polymeric composite laminates. The VARI technique has a lot of advantages such as low cost, free voids laminates and the ability to produce complex shapes. However, it has some drawbacks such as poor surface finish and temperature instabilities. On the contrary, the RTM technique can withstand high temperature, producing a good surface finish and complex shape laminates. However, it has a high tooling cost and poor quality laminates due to void contents. In this study, a new technique integrated both VARI and RTM techniques is developed to minimize their drawbacks. This technique involves using a semitransparent composite plate instead of a vacuum bag in the VARI technique. This semitransparent plate takes the inverse shape of the composite laminate similar to the RTM tooling. However, this plate has a low cost compared with RTM tooling and allows monitoring of the resin flow during the infusion process. To validate the integrated technique, the mechanical properties of composite laminates are compared with that produced by hand layup technique (HLT). Moreover, the influence of incorporation of 0.25 wt. % and 0.5 wt. % of titanium dioxide (TiO2) nanoparticle into woven and chopped fiber/epoxy composite laminates was demonstrated. The results indicated that the laminates fabricated by the integrated VARI method showed higher mechanical properties than those produced by the hand-layup technique. Moreover, glass fiber/epoxy filled with 0.25 wt. % of TiO2 nanoparticles gives high mechanical properties.

Effect of Press Condition on the Mechanical Properties of GFRTP Molded by the Melted Thermoplastic-Resin Transfer Molding

2018 ◽  
Vol 774 ◽  
pp. 367-372
Author(s):  
Kazuto Tanaka ◽  
Akihiro Hirata ◽  
Tsutao Katayama
Keyword(s):  
Mechanical Properties ◽  
Shell Structure ◽  
Low Cost ◽  
Resin Transfer Molding ◽  
Outer Shell ◽  
Fiber Reinforced ◽  
Thermoplastic Resin ◽  
Transfer Molding ◽  
Reinforced Thermoplastics ◽  
Fiber Reinforced Thermoplastics

The application of Fiber Reinforced Thermoplastics (FRTP) is expected to reduce the weight of automobiles. The press and injection hybrid molding method was developed to mold FRTP with high strength and high stiffness by giving complicated shapes such as ribs and bosses to the outer shell structure of FRTP with continuous fiber. However, as this method uses high-cost FRTP laminated sheets, it is necessary to develop a low-cost FRTP manufacturing process. In this study, we aim at the development of Melted Thermoplastic-Resin Transfer Molding (MT-RTM) to mold FRTP with complicated shape at low cost by injecting melted short fiber reinforced thermoplastics into dry fabric. The effects of press condition on the mechanical properties of GFRTP molded by MT-RTM were clarified by bending tests. GFRTP molded at high mold temperature and high closing speed showed high mechanical properties because of good impregnation of injection resin into continuous fabric in the outer shell structure.

Dynamic mechanical properties of sisal fiber reinforced polyester composites fabricated by resin transfer molding

2009 ◽  
Vol 30 (6) ◽  
pp. 768-775 ◽  
Author(s):  
P.A. Sreekumar ◽  
Redouan Saiah ◽  
Jean Marc Saiter ◽  
Nathalie Leblanc ◽  
Kuruvilla Joseph ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Resin Transfer Molding ◽  
Dynamic Mechanical Properties ◽  
Sisal Fiber ◽  
Fiber Reinforced ◽  
Transfer Molding ◽  
Dynamic Mechanical ◽  
Polyester Composites

scholarly journals Porosity Reduction in the High-Speed Processing of Glass-Fiber Composites by Resin Transfer Molding (RTM)

2004 ◽  
Vol 38 (3) ◽  
pp. 195-226 ◽  
Author(s):  
Harry J. Barraza ◽  
Youssef K. Hamidib ◽  
Levent Aktasb, ◽  
Edgar A. O’Rear ◽  
M. C. Altan
Keyword(s):  
Glass Fiber ◽  
High Speed ◽  
Resin Transfer Molding ◽  
Fiber Composites ◽  
Transfer Molding ◽  
Glass Fiber Composites ◽  
Porosity Reduction

EVALUATION OF MECHANICAL PROPERTIES OF CFRP BY VARTM AND ITS APPLICATION

2006 ◽  
Vol 20 (25n27) ◽  
pp. 3896-3901 ◽  
Author(s):  
YUN-HAE KIM ◽  
JIN-HO SON ◽  
BYUNG-KUN CHOI ◽  
YOUNG-DAE JO ◽  
KUK-JIN KIM ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Resin Transfer Molding ◽  
Mechanical Tests ◽  
Resin Content ◽  
Automobile Engine ◽  
Transfer Molding ◽  
Mechanical And Physical Properties ◽  
Physical Tests ◽  
Vartm Process

In the present study, we contrast the change of mechanical and physical properties between VaRTM (Vacuum Assisted Resin Transfer Molding) and hand lay-up process. In the results of mechanical tests, VaRTM specimen is stronger than hand lay-up specimen and hand lay-up specimen became delamination. In the results of physical tests, the resin content of VaRTM specimen is lower than hand lay-up specimen. On micrograph, the strength of specimen by VaRTM between fiber and resin is stronger than that of one by hand lay-up. And the specimen by hand lay-up contains more defects than one by VaRTM. So, VaRTM process can practically apply for automobile engine hood. This paper shows that VaRTM process is one of the most suitable processes for composite parts of automobile.

scholarly journals Microanalysis of Carbon and Glass Fiber obtained by Resin Transfer Molding Process to Manufacture Blades for Wind Turbines

2018 ◽  
Vol 24 (S1) ◽  
pp. 1082-1083 ◽  
Author(s):  
E. E. Vera-Cárdenas ◽  
A. I. Martínez-Pérez ◽  
C. Rubio-González ◽  
S. Ledesma-Ledesma ◽  
J. A. Banderas-Hernández ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Wind Turbines ◽  
Resin Transfer Molding ◽  
Molding Process ◽  
Transfer Molding

Mechanical properties of the cured laminates on the hot-press tackified preforms in vacuum assisted resin transfer molding

2018 ◽  
Vol 33 (1) ◽  
pp. 242-248 ◽  
Author(s):  
Changchun Wang ◽  
Jinrui Ye ◽  
Guangquan Yue ◽  
Guanghui Bai ◽  
Ling Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Resin Transfer Molding ◽  
Hot Press ◽  
Transfer Molding
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