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arrow Manufacture and Property Test of Sandwich Composite Panel Based on RTM

Datetime:2019-12-27 11:23:42  

JIA Lixia  CHEN Zhenhong LIU Junmei  TIAN Fei

(Hebei University of Science and Technology,Hebei Shijiazhuang,050018)

    Abstract  The application effect of RTM forming process in the manufacture of sandwich composite panel was discussed.The industrial polyester with higher strength & lower elongation was used as the raw material to design woven spacer fabric.Polyurethane foam was filled in the fabric cavity to prepare the preformed unit for the composite materials.Through RTM composite process design,sandwich woven reinforced composite panel was produced.In the end,the physical properties of the formed panel like bending,compressing and so on were tested and compared & analyzed with hand lay up panel.The test results showed that RTM composite process was beneficial to the penetration and uniform distribution of resins.It helped the combination and carrying of resin,reinforcing material and polyurethane foam.It is considered that the bending and anti pressure ability of the composite panel based on RTM manufacture are better than those of hand lay up molding panel.