CN200958257Y

CN200958257Y - Inorganic double-density light plate

Info

Publication number: CN200958257Y
Application number: CN 200620043577
Authority: CN
Inventors: 张溪泉
Original assignee: SHANGHAI GERUITE BUILDING MATERIAL CO Ltd
Current assignee: SHANGHAI GERUITE BUILDING MATERIAL CO Ltd
Priority date: 2006-07-03
Filing date: 2006-07-03
Publication date: 2007-10-10
Anticipated expiration: 2016-07-03

Abstract

A dual density light organic slab, a light slab for partition boards, heat insulation, sound insulation and fire resistance purposes etc in buildings, which comprises an upper surface layer of mixed materials and a lower surface layer of mixed materials of high density, and an interlayer of mixed material of low density, pressed together, wherein the upper and lower surface materials are made of modified magnesium oxychloride cement mixed with chopped fibers or paved with glass fiber mesh cloth; the interlayer material of low density is made by mixing the surface layer materials with one or several kinds of light filling materials contained in crushed plant straws after the surface layer materials are foamed or added with expanded perlite, polystyrene foamed grains and wood chips. The utility model has the advantages of that: the increment in the density of two surface layers can distinctly improve the shock strength and folding strength of the slab, with sides, angles and surfaces hard to damage; besides, surface finish degree and the appearance are also improved, facilitating the application of paints, and affixing of wall paper or wall tiles.

Description

Dual density inorganic light weight sheet material

Technical field

The utility model relates to constructional materials, especially for a kind of light weight board in places such as building partition, insulation, sound insulation, fire prevention, shielding.

Technical background

Present light-weight inorganic sheet material has all been taked inserts such as foaming or admixture expanded perlite, polystyrene foaming granule, wood chip, string straw in order to alleviate unit weight, to improve thermal and insulating performance, and all is that mixed material by single density constitutes.

The top layer of inorganic plate and inner core all are same low-density mixed materials, though have advantages such as lightweight, insulation, sound insulation, shortcoming also is clearly:

1, intensity is low, be difficult to bear general bump, and corner and surface is very easily impaired;

2, surface void rate height, suction easily, weatherability is poor, generally can not be used for outdoor for a long time;

3, rough surface, be difficult for carrying out the top layer and decorate.Showing as can't be with the glue class adhesive thin layer facing such as wallpaper, wooden skin of fitting; As with mortar class adhesive binding face tile, again very easily from the base material under the flake-off.

Summary of the invention

The purpose of this utility model is to provide a kind of dual density inorganic light weight sheet material, has lightweight, insulation, fire prevention, sound insulation and the premium properties that is easy to decorate, has a structural lumber of higher mechanical strength simultaneously.

In order to achieve the above object, it is the structure of single density all that the utility model has changed original light-weight inorganic building materials, and having adopted up and down skin-material is higher density and intermediate layer (being core) is low-density mixed material.Form by highdensity upper epidermis and following top layer and the compacting of low-density intermediate layer.Described highdensity upper epidermis and its material of following top layer are admixture short fiber or auxilliaryly establish glass fiber reticular cloth and form in the modified magnesium oxychloride cement, up and down the also available refinforced cement of skin-material, strengthen gypsum, the calcium silicates inorganic material is alternative; The material in described low-density intermediate layer is that skin-material one or more light fillers in foaming or adding expanded perlite, polystyrene foaming granule, wood chip and comminuted plants stalk form through mixing up and down.

Each layer thickness what, then decide as for according to the purposes and the requirement of product.As requiring unit weight light, the top layer, two sides is a little suitably thin; The skin depth that then can suitably strengthen the two sides that antagonism folding, impact strength are had relatively high expectations.

Result of use of the present utility model is:

The sheet material that present technique is produced has kept also having following advantage outside the advantage such as the lightweight, insulation, sound insulation of original product:

1, because top layer, sheet material two sides density improves, improved the impact strength and the rupture strength of sheet material significantly, not easy damaged limit, angle and surface;

2, greatly reduced the void content on top layer, reduced water absorption rate, obviously improved weatherability, but made it prolonged application in the open;

3, all significantly raisings of top layer fineness and intensity, outward appearance improvement, brushing paint, stickup wallpaper or binding face tile easily;

4, insulation, sound insulation and fireproof performance have further been improved.

Description of drawings

Fig. 1 is a structure chart of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

The utility model is by the material and the intermediate layer 2 of two top layers, 1,3 employing higher densities form for low-density mixed material compacting up and down, or adopt refinforced cement, strengthen inorganic material such as gypsum, calcium silicates, two top layers, 1,3 materials are formed by admixture short fiber in the modified magnesium oxychloride cement or laying glass fiber reticular cloth up and down, and the low-density material in intermediate layer 2 is that top layer one or more light fillers in foaming or adding expanded perlite, polystyrene foaming granule, wood chip and comminuted plants stalk form through mixing up and down.

Claims

1, a kind of dual density inorganic light weight sheet material is characterized in that:

High density modified magnesium oxychloride cement and intermediate layer by upper epidermis and following top layer form through the low density modified magnesia oxychloride cement compacting of foaming or adding light filler.