Font Size: a A A

Development Of Continuous Basalt Fiber Reinforced Polymer(BFRP) And BFRP/Structural Plywood Composites

Posted on:2009-04-21Degree:MasterType:Thesis
Country:ChinaCandidate:J DingFull Text:PDF
GTID:2121360242992405Subject:Wood science and technology
Abstract/Summary:PDF Full Text Request
Using BFRP(Basalt Fiber Reinforced Polymer) to reinforce wood composites can overcome the intrinsic faults of wood, and increase the value of wood. This technology has realized the utilization of inferior timber, which greatly developed the applications in constructions, including civil residential houses, business buildings and pavements, bridges and so on. This thesis is mainly about three aspects:(1) adopting orthogonal test to research PF-BFRP composites manufacturing factors, including temperature, pressure and time;(2) study the relationship between resin content and tension properties of epoxy BFRP composites; (3)study the bonding properties of PF-BFRP/structural plywood composite. Following conclusions are drawn:(1) For the bending properties of PF-BFRP composites, influence size of three factors is pressure>time>temperature, particularly, pressure influence the bending strength extremely obviously .For the tension properties of PF-BFRP composites, three factors do not influence the tension properties obviously. Influence size is also very close. The optimum technics are A3B2C3, which are molding temperature 180℃, heat pressure 7MPa, gluing time 40min. In this case, bending strength of PF-BFRP composite is 465MPa, modules of bending is 13.5GPa,tension strength is 196.4MPa and MOE is 9.4GPa。(2) Tension strength of epoxy BFRP increases first and then decreases with the increment of resin content. However, MOE increases with the increment of resin content. When the resin content is 40%-45%, the tension properties of epoxy BFRP are best. Correspondingly, tension strength is about 250 MPa and MOE is about 12 GPa.(3) It is available that using continuous basalt fiber to reinforce structural plywood. Bending strength of reinforced structural plywood composite increases 100~200%. Bending strength of second molding-3 layer basalt fiber BFRP/HMR treated structural plywood increases from 50MPa to130MPa.(4) HMR can improve bonding properties of BFRP/wood composites dramatically.
Keywords/Search Tags:continuous basalt fiber, BFRP, BFRP/structural plywood composite, HMR, wood composites
PDF Full Text Request
Related items