The invention relates to a high-strength polyurethane composite board as well as a preparation method and application thereof, and mainly solves the problems that a polyurethane composite board in the prior art is low in bending strength and is easy to bend and deform after being baked. The high-strength polyurethane composite board sequentially comprises a non-woven fabric layer (1), a first polypropylene polymer film layer (2), a polypropylene powder layer (3), a first glass fiber layer (4), a polyurethane foam layer (5), a second polypropylene polymer film layer (6), a second glass fiber layer (7), a polyethylene powder layer (8) and a polyethylene polymer film layer (9) from top to bottom, wherein the density of the polyurethane foam layer is 60-70kg/m < 3 >, the bending strength is 160-185Kpa, and the compression strength is 300-350Kpa, the problems are well solved, and the automobile trunk cover plate can be used in the industrial application of the automobile trunk cover plate.
本发明涉及一种高强度聚氨酯复合板材及其制备方法与用途,主要解决现有技术中聚氨酯复合板材的弯曲强度低,烘烤后易弯曲变形的问题。本发明通过采用一种高强度聚氨酯复合板材,自上而下依次包括无纺布层(1)、第一聚丙烯高分子膜层(2)、聚丙烯粉层(3)、第一玻璃纤维层(4)、聚氨酯泡沫层(5)、第二聚丙烯高分子膜层(6)、第二玻璃纤维层(7)、聚乙烯粉层(8)和聚乙烯高分子膜层(9);其中,所述的聚氨酯泡沫层的密度为60~70kg/m3,弯曲强度为160~185Kpa,压缩强度为300~350Kpa及其制备方法的技术方案,较好地解决了该问题,可用于汽车行李箱盖板的工业应用中。
High-strength polyurethane composite board as well as preparation method and application thereof
高强度聚氨酯复合板材及其制备方法与用途
2023-02-17
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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