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Core material for sandwich panel and preparation method thereof, and sandwich panel comprising the above core material for sandwich panel

A sandwich panel and core material technology, applied in the direction of chemical instruments and methods, applications, household walls, etc., can solve problems such as difficulty in ensuring formability, and achieve the effect of seeking ease

Inactive Publication Date: 2018-03-13
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the above-mentioned panels are aimed at improving weight reduction and sound insulation, there are still difficulties in securing formability

Method used

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  • Core material for sandwich panel and preparation method thereof, and sandwich panel comprising the above core material for sandwich panel
  • Core material for sandwich panel and preparation method thereof, and sandwich panel comprising the above core material for sandwich panel
  • Core material for sandwich panel and preparation method thereof, and sandwich panel comprising the above core material for sandwich panel

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preparation example Construction

[0051] Preparation method of core material for sandwich panel

[0052] In another example of the present invention, a method for preparing a core material for a sandwich panel is provided, comprising: a step of mixing a thermosetting resin and cork powder to form a composite body; and a step of insert injection molding the formed composite body .

[0053] The conventional sandwich panel preparation method is to paste the prepared core material on the surface material, and the surface material is prepared by joining the core material with a constant thickness and prefabricated in a wide plate shape, and mainly uses It is suitable for covering wide and flat surfaces, but it is difficult to cover complex external shapes or curved structures, so its use in various fields is limited. Accordingly, the above-mentioned method for preparing the core material for a sandwich panel includes the step of insert injection molding in a manner capable of representing various shapes, and since...

Embodiment 1

[0062] With respect to 100 parts by weight of epoxy resin, 20 parts by weight of cork powder and 10 parts by weight of microfibers are mixed to form a composite. in use. At this time, after the mold was coated with a mold release agent and inserted into the composite, it was solidified in a vacuum bag at room temperature by applying vacuum pressure for 7 hours, and then the mold was removed to prepare a mold with a thickness of 5mm sandwich panel core material.

Embodiment 2

[0064] For 100 parts by weight of epoxy resin, mix 15 parts by weight of cork powder and 15 parts by weight of microfiber to form a composite. of. The above-mentioned cork powder was molded by pressing it into a heated mold through a narrow channel, and the above-mentioned mold was removed to prepare a core material for a sandwich panel with a thickness of 6 mm.

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Abstract

The invention provides a core material for a sandwich panel and a preparation method for the core material for a sandwich panel. The above-mentioned core material for a sandwich panel includes a composite body composed of a thermosetting resin and cork powder. The preparation method of the above-mentioned core material for the sandwich panel comprises: a step of mixing a thermosetting resin and cork powder to form a composite body; and a step of inserting injection molding on the formed above-mentioned composite body. Furthermore, there is provided a sandwich panel comprising: a core material for a sandwich panel, a composite composed of thermosetting resin and cork powder, and a pair of surface materials laminated on both sides of the core material.

Description

technical field [0001] The present invention relates to a core material for a sandwich panel, a preparation method thereof, and a sandwich panel comprising the core material for a sandwich panel. Background technique [0002] In most cases, ordinary sandwich panels use balsa wood or foamed plastic as the core material for light weight, or use plastic or metal honeycomb for sound insulation and flame retardancy The core is used as a core material. However, most of the sandwich panels including the above-mentioned core materials have structural restrictions in a wide flat form, and thus are limited in application to structures with curved surfaces or various appearances. [0003] On the other hand, Korean Patent No. 10-0786335 relates to sandwich panels for interior and exterior materials including balsa wood panels, and discloses that the above-mentioned balsa wood panels include unit panels and are made of softwood and resin materials. A formed panel of dissimilar material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C2/26E04C2/36
CPCB29C45/0013B29K2101/12B29K2511/02B32B15/08B32B21/08B32B27/12B32B27/20B32B27/38B32B2250/03B32B2250/40B32B2262/062B32B2264/067B32B2307/304B32B2307/54B32B2307/558B32B2307/714B32B2607/00E04C2/284Y10T428/31515Y10T428/31522E04C2/26E04C2/36B32B27/06B32B2264/06C08L63/00
Inventor 金成珉
Owner LG HAUSYS LTD
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