Heat-insulating light sandwich wall board

Abstract

The sandwich heat-insulating light wall panel is made up by using crop straw and stalk as main raw material, matching with light ore powder, gelling agent and other components and sandwiching polystyrene foam plate and utilizing special-purpose equipment through one-step process. Its composition comprises straw and stalk powder 48-50%, light ore powder 35-42%, flyash 4-8%, halide powder 10-12%, glass fibre 1-2%, gelling agent 0.2-1%, fiore-resisting agent 0.5-0.8%, whitening agent 0.05-0.1% and solidifying agent 0.01-0.09%, and its internal core is polystyrene foam plate, its thickness is 30-100 mm.

Description

1. Technical Field: [0001] The invention belongs to a new type of building material, and specifically relates to a kind of integrated sandwich insulation made of crop straw as the main raw material, with light mineral powder, gelling agent, polystyrene foam material inside, and special equipment at one time. Insulated lightweight wall panels. 2. Background technology: [0002] After investigation, there are many domestic documents and manufacturers about the production of wallboard using straw as raw materials. Metal plates, concrete, and wood panels are used as surface materials, with perlite, polystyrene foam, foamed resin, honeycomb-shaped cells and other materials. , There are manufacturers of sandwich panels, but some of these products are also wall panels produced from straw, but they are hollow and not sandwiched, and have poor thermal insulation performance. They are not ideal for external walls and roof panels, and are difficult to resist the north. Cold and hot. Some sa...

AI Technical Summary

Problems solved by technology

[0002] After investigation, there are many domestic literatures and manufacturers on the production of wallboards with straw as raw materials. Metal plates, concrete, and wood boards are used as surface materials, and materials such as perlite, polystyrene foam, foamed resin, and honeycomb cells are sandwiched inside. , There are also manufacturers of sandwich panels, but although some of these products are also wallboards made of straw, they are hollow and have no sandwich core, and their thermal insulation performance is poor. cold and heat

However, some sandwich panels made of other materials have low strength; some are bulky and inconvenient to transport and install; some have high cost;

In short, the prior art has the following deficiencies: 1. The hollow board does not sandwich the core, and the thermal insulation and sound insulation performance is poor

2. Metal plate sandwich panel, high cost and easy to corrode

3. Concrete sandwich panels have high surface density and inconvenient construction

4. Wooden metal mesh sandwich panel, high cost, poor fire resistance

5. The sandwich wallboard cannot be formed at one time, which not only increases the process, but also affects the strength of the wallboard and reduces the bending and compressive resistance

6. The cost of some earthen wall panels is too high. General enterprises, especially the brick yards that are forced to switch production, are limited by capital and technology and are unable to take over production. Moreover, it is difficult to promote the use of wall materials that have just started

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