Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

Provided are a high-fiber-content fiber-reinforced rigid polyurethane foam composite railway sleeper and a method for manufacturing same; the sleeper is formed by adhesively bonding a plurality of high-fiber-content fiber-reinforced rigid polyurethane foam composite panels (10) by means of a binder (11), and the outer surface of the sleeper is provided with an anti-corrosion paint film (12); the high-fiber-content fiber-reinforced rigid polyurethane foam composite panels (10) employ polyurethane resin as a matrix material and fiber as a reinforcing material. Using such technical means as a low-hydroxyl and low-functionality hybrid polyether polyol and a coupling agent solves the problem of insufficient impregnation of polyurethane resin with reinforcing fiber, thereby increasing the reinforcing-fiber content; it is thus possible to manufacture a fiber-reinforced rigid polyurethane foam material product having a density higher than 840 kg/m3 and a reinforcing-fiber content of more than 60%, compensating for the technical deficiency of fiber-reinforced polyurethane foam composite panels, making their product specifications and performance more diverse, and satisfying different technical requirements.

» Number: WO2018033041A1 (A1)

» Publication Date: 22/02/2018

» Applicant: RAILWAY ENGINEERING RES INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES?[CN]; CHINA ACAD RAILWAY SCIENCES?[CN]

» Inventor: NIU BIN?[CN]; ZENG ZHIBIN?[CN] (2)

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