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Patent application title:

Reinforced polystyrene board

Publication number:

US20120177865A1

Publication date:
Application number:

13/496,882

Filed date:

2010-09-21

Abstract:

A reinforced polystyrene board, includes a grid reinforcer arranged in a board surface of a polystyrene board, so as to improve a tensile strength and a folding strength of the polystyrene board, and the grid reinforcer is made of a glass fiber grid, a metal grid, or a man-made fibers grid. A protective layer of the polystyrene board arranged outside of the reinforcer isolates the reinforcer from an external environment, so as to improve the corrosion resistance and the durability of the reinforcer.

Inventors:

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Classification:

  1. Fixed constructions
  2. Building

B32B5/028 »  CPC further

Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a layer Net structure, e.g. spaced apart filaments bonded at the crossing points

B32B5/245 »  CPC further

Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer

B32B13/045 »  CPC further

Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such substance as the main or only constituent of a layer, next to another layer of a of foam

B32B15/02 »  CPC further

Layered products comprising a layer of metal Layer formed of wires, e.g. mesh

E04B1/762 »  CPC further

Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs; Insulation or other protection; Elements or use of specified material therefor; Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only Exterior insulation of exterior walls

E04C2/22 »  CPC further

Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced

B32B2262/101 »  CPC further

Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives; Inorganic fibres Glass fibres

B32B2262/103 »  CPC further

Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives; Inorganic fibres Metal fibres

B32B2262/106 »  CPC further

Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives; Inorganic fibres Carbon fibres, e.g. graphite fibres

B32B2266/0228 »  CPC further

Composition of foam; Organic; Materials belonging to; Vinyl resin Aromatic vinyl resin, e.g. styrenic (co)polymers

B32B2307/304 »  CPC further

Properties of the layers or laminate having particular thermal properties Insulating

B32B2307/54 »  CPC further

Properties of the layers or laminate having particular mechanical properties Yield strength; Tensile strength

B32B2307/546 »  CPC further

Properties of the layers or laminate having particular mechanical properties Flexural strength; Flexion stiffness

B32B2307/714 »  CPC further

Properties of the layers or laminate; Other properties Inert, i.e. inert to chemical degradation, corrosion

B32B2607/00 »  CPC further

Walls, panels

Y10T428/23 »  CPC further

Stock material or miscellaneous articles Sheet including cover or casing

E04B1/80 »  CPC main

Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs; Insulation or other protection; Elements or use of specified material therefor; Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only; Heat insulating elements slab-shaped

Description

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

The present invention relates to a reinforced polystyrene board disposed in a surface layer thereof, and more particularly to an external thermal insulation wall provided with the polystyrene board anchored by a mechanical fixing device.

2. Description of Related Arts

At present, a conventional polystyrene board is molded and shaped by a forming machine after being foamed. The conventional polystyrene board has the property of satisfying density and thermal conductivity, but has a low tensile strength and folding strength, and easily cracks, deforms or shrinks. When the polystyrene board is used for an external thermal insulation wall anchored by a mechanical fixing device, the anchored thermal insulation polystyrene board has problems and shortcomings of brittleness and easy breaking. So the polystyrene board needs improvement.

SUMMARY OF THE PRESENT INVENTION

In order to overcome the shortcoming of low stability of a thermal insulation layer of an conventional polystyrene board anchored by a mechanical fixing device, the present invention provides a reinforced polystyrene board which is able to improve a tensile strength and a folding strength thereof, so as to enhance mechanical properties and whole stability of an external thermal insulation system of the polystyrene board.

A technical scheme adopted by the present invention is as follows. A two-dimensional grid reinforcer is disposed in a surface layer of a thermal insulation polystyrene board. The grid reinforcer is made of a glass fiber grid, a metal grid or a man-made fibers grid. A characteristic of the grid reinforcer is that a polystyrene board protective layer is disposed on an outer surface of the grid reinforcer, which isolates the grid reinforcer from an external environment of the polystyrene board, such as a thin layer of plastering mortar on the polystyrene board surface, and improves corrosion resistance and durability of the thermal insulation polystyrene board. A glass fiber grid reinforcer can be disposed in double sides or single side of the polystyrene board, according to requirement.

The glass fiber grid reinforcer is formed by knitting decussations of glass fiber warps and wefts. A distance between the grid apertures of the glass fiber grid reinforcer is 5˜25×5˜25 mm, optimally7˜15×7˜15 mm; a thickness of a polystyrene board protective layer of the reinforcer, i.e., a distance between the glass fiber grid reinforcer and an outer surface edge of the polystyrene board is 5˜15 mm, optimally 8˜12 mm.

The metal fiber grid reinforcer mentioned above is formed by electric welding decussations of longitudinal steel wires and transverse steel wires. A distance between the grid apertures of the metal fiber grid reinforcer is 5˜60×5˜60 mm, optimally 10˜30×10˜30 mm; the metal fiber grid reinforcer is hot-galvanized steel wire, cold drawn low carbon steel wire, stainless steel wire or alloy steel wire. A diameter of the steel wire is 0.5˜4.0 mm, optimally 0.9˜2.5 mm. A thickness of a metal fiber grid polystyrene board protective layer of the reinforcer is 5˜50 mm, optimally 8˜30 mm.

The man-made fibers grid mentioned above is formed by knitting decussations of man-made fibers warps and man-made fibers wefts. A distance between the grid apertures of the man-made fibers grid reinforcer is 5×5˜20×20 mm, optimally 10×10˜15×15 mm; a thickness of a polystyrene board protective layer of the man-made fibers grid reinforcer is 5˜15 mm, optimally 8˜12 mm.

By using a method that accomplishes compression molding the grid reinforcer and the polystyrene board at a time, the present invention disposes the grid reinforcer in the surface layer of the polystyrene board, so as to ensure the integrity and airtightness of the polystyrene board body that is inside or outside the grid reinforcer.

The present invention reinforced polystyrene board has the advantages as follows. Compared with a conventional polystyrene board, the reinforced polystyrene board significantly improves tensile strength and folding strength thereof. The present invention is suitable for an external thermal insulation wall of the polystyrene board anchored by a mechanical fixing device, and can solve a problem that the polystyrene board has the shortcomings of brittleness and easy breaking.

BRIEF DESCRIPTION OF THE DRAWINGS

Specific characteristics and properties of the present invention are further illustrated by preferred embodiments and drawings according to the preferred embodiments as follows.

FIG. 1 is a structure diagram of the present invention.

FIG. 2 is a longitudinal section diagram of FIG. 1.

In FIG. 1 and FIG. 2, 1—polystyrene core board, 2—grid reinforcer, 3—a polystyrene board protective layer of the reinforcer.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

In FIG. 1 and FIG. 2, a reinforced polystyrene board according to the present invention from inside to outside sequentially consists of a polystyrene core board 1, a grid reinforcer 2 and a polystyrene board protective layer 3 of the reinforcer 2. The polystyrene board can be an expanded polystyrene board (EPS) or a rigid extruded polystyrene foam board (XPS). The grid reinforcer 2 is formed by knitting decussations of warps and wefts made of glass fiber or man-made fibers fabric, or by electric welding decussations of longitudinal steel wires and transverse steel wires. The polystyrene board protective layer 3 of the reinforcer 2 and the polystyrene core board 1 form an integral board, which isolates the grid reinforcer from an external environment, such as a thin layer of plastering mortar on the polystyrene board surface, and prevents the reinforcer from alkalization and corrosion.

Claims

1-19. (canceled)

10. A reinforced polystyrene board, which is an thermal insulation polystyrene laminate consisting of a polystyrene laminate and a two-dimensional grid reinforcer layer disposed in a surface layer of the polystyrene laminate, wherein a polystyrene laminate protective layer is disposed on an outer surface of said two-dimensional grid reinforcer, and by using a method that accomplishes compression molding said grid reinforcer and said polystyrene laminate at a time, said grid reinforcer is disposed in said surface layer of said polystyrene laminate.

11. The reinforced polystyrene board as recited in claim 10, wherein said reinforcer is formed by knitting decussations of man-made fibers warps and wefts, and a distance between the grid apertures of the man-made fibers grid reinforcer is 5×5˜20×20 mm.

12. The reinforced polystyrene board as recited in claim 10, wherein a thickness of said polystyrene laminate protective layer is 5˜15 mm; said polystyrene laminate protective layer and said polystyrene core laminate form an integral laminate.

13. The reinforced polystyrene board as recited in claim 10, wherein said man-made fibers grid is formed by knitting decussations of man-made fibers warps and man-made fibers wefts, an optimal distance between said grid apertures is 10×10˜15×15 mm.

14. The reinforced polystyrene board as recited in claim 10, wherein an optimal thickness of said polystyrene laminate protective layer is 8˜12 mm; said polystyrene laminate protective layer and said polystyrene core laminate form an integral laminate.

15. A metal grid reinforced polystyrene board, which is an thermal insulation polystyrene laminate consisting of a polystyrene laminate and a two-dimensional metal grid reinforcer disposed in a surface layer of said polystyrene laminate, wherein a polystyrene laminate protective layer is disposed on an outer surface of said two-dimensional grid reinforcer, and by using a method that accomplishes compression molding said grid reinforcer and said polystyrene laminate at a time, said grid reinforcer is disposed in said surface layer of said polystyrene laminate.

16. The metal grid reinforced polystyrene board as recited in claim 15, wherein a metal fiber grid reinforcer is formed by electric welding decussations of longitudinal steel wires and transverse steel wires, a distance between the grid apertures of said metal fiber grid reinforcer is 5˜60×5˜60 mm, said metal fiber grid reinforcer is a hot-galvanized steel wire, a cold drawn low carbon steel wire, a stainless steel wire or an alloy steel wire, and a diameter of the steel wire is 0.5˜4.0 mm.

17. The metal grid reinforced polystyrene board as recited in claim 15, wherein a thickness of said polystyrene laminate protective layer is 5˜50 mm; said polystyrene laminate protective layer and said polystyrene core laminate form an integral laminate.

18. The metal grid reinforced polystyrene board as recited in claim 15, wherein said reinforcer is formed by electric welding decussations of longitudinal steel wires and transverse steel wires, an optimal distance between said grid apertures of said metal fiber grid reinforcer is 10˜30×10˜30 mm, and said metal fiber grid reinforcer is hot-galvanized steel wire, cold drawn low carbon steel wire, stainless steel wire or alloy steel wire, an optimal diameter of said steel wire is 0.9˜2.5 mm.

19. The metal grid reinforced polystyrene board as recited in claim 15, wherein an optimal thickness said protective layer of said reinforced polystyrene board is 8˜30 mm; and said polystyrene laminate protective layer and said polystyrene core laminate form an integral laminate.

20. A glass fiber grid reinforced polystyrene board, which is an thermal insulation polystyrene laminate consisting of a polystyrene laminate and a two-dimensional glass grid reinforcer disposed in a surface layer of said polystyrene laminate, wherein a polystyrene laminate protective layer is disposed on an outer surface of said two-dimensional grid reinforcer, and by using a method that accomplishes compression molding said grid reinforcer and said polystyrene laminate at a time, said grid reinforcer is disposed in said surface layer of said polystyrene laminate.

21. The glass fiber grid reinforced polystyrene board as recited in claim 20, wherein said reinforcer is formed by knitting decussations of a man-made fibers warps and wefts, and a distance between the grid apertures of the man-made fibers grid reinforcer is 5˜25×5˜25 mm; a glass fiber grid reinforcer is disposed in double sides or single side of the polystyrene laminate.

22. The glass fiber grid reinforced polystyrene board as recited in claim 20, wherein a thickness of said polystyrene laminate protective layer is 5˜15 mm; said polystyrene laminate protective layer and said polystyrene core laminate form an integral laminate.

23. The glass fiber grid reinforced polystyrene board as recited in claim 20, wherein said reinforcer is formed by knitting decussations of a man-made fibers warps and wefts, an optimal distance between the grid apertures of the man-made fibers grid reinforcer is 7˜15×7˜15 mm; said reinforcer is disposed in double sides or single side of said polystyrene laminate.

24. The glass fiber grid reinforced polystyrene board as recited in claim 20, wherein an optimal thickness of said polystyrene laminate protective layer is 8˜12 mm; said polystyrene laminate protective layer and said polystyrene core laminate form an integral laminate.

Resources

Images & Drawings included:

Fig. 01 - Reinforced polystyrene board
Fig. 01
Fig. 02 - Reinforced polystyrene board
Fig. 02

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