CN200978482Y - High strength calcium sulfate cotton fiberboard - Google Patents

Abstract

The utility model relates to a high-strength calcium sulfate cotton fiber board, which comprises phosphogypsum, cotton fiber, water, water proofing agent. The utility model uses industrial residue phosphogypsum as a base material and industry waste cotton fiber as a stiffener, wherein a board material comprises upper and lower thin skin layers and a middle thick layer, the middle thick layer comprises coarse cotton fiber and crude phosphorous gypsum powder, the upper and lower thin skin layers comprise fine fiber and fine phosphorus gypsum powder. The utility model uses the industrial residue phosphogypsum as the base material, thereby solving the problem of environmental pollution, and using the waste cotton fiber as the stiffener, thereby increasing the intensity of the board, simultaneously solving the problem of waste utilization, and the base material is combined with the stiffener without special requirements, consideration to crude and fine, random combination, according to needs to do best . The utility model has the advantages that the water-proof and fire-proof property are excellent, a board material can be sawned, planed and nailed, thereby the construction is convenient. The utility model can be made into various plate fitments, and belongs to environment-friendly type building material.

Description

High strength calcium sulfate cotton fiber plate

Technical field

The utility model relates to the building board technical field, is specifically related to a kind of novel high-strength calcium sulfate cotton fiber plate structure technology.

Background technology

In the prior art, the partition wall that uses in the building, decorative stone cream fiberboard is numerous in variety, structure is different, strengthens gypsum plank and Thistle board etc. if any fibrous plaster, gypsum particle board, calcium silicate board, glass.Market demand is quite big, but manufacturing enterprise's profit of its plate is very low.Its reason is that existing gypsum board manufacture technology almost also rests on the period fifties.At first, in the use of primary raw material, do not change and innovation, the still plaster of paris that raw material adopts mostly is main, and the wood fibre that auxiliary material adopts mostly is main; Secondly also not innovation on the production Technology; Cause thus that energy consumption is big in process of production, the corresponding height of equipment investment, but and problems such as production scale is little have caused direct operating cost high for a long time.And present plasterboard is to be mixed and made into by the plaster of paris and paper fiber or wood wool.As Hubei Xiaogan victory materials for wall Co., Ltd " fibrous plaster " produced not, be the paper fibrous plaster made from the paper fiber and the plaster of paris; Also have Shanxi Houma gypsum particle board factory to produce, make the gypsum particle board of producing with the plaster of paris behind the wood shavings with timber.In addition, also have the plaster of paris or desulfurated plaster and cardboard to add the Thistle board that panel is produced.The common issue with that these products exist is that material requested is non-renewable thing, and cost is higher relatively, and insufficient strength.

Calcium sulfate (another name: gypsum, gypsum) comprising: other gypsum such as chemical gypsum, the plaster of paris, desulfurated plaster, ardealite, fluorgypsum.

And the industrial residue chemical gypsum is the discarded object after the industrial production, can only be deposited in for a long time in the open, not only has environment pollution, and has taken a large amount of soils.Therefore, how to utilize industrial residue phosphogypsum is the difficult problem that affiliated field need solve always.Industrial waste cotton fiber, the airborne dust regenerant when being the cotton mill weaving is the material that can not be re-used as weaving usefulness, can only also need to spend lot of manpower and material resources this is handled as refuse rubbish usually.

The utility model content

At the prior art above shortcomings, the purpose of this utility model provides that a kind of cost is low, intensity is high, waterproof, the novel high-strength calcium sulfate cotton fiber plate that fire line is good.

The purpose of this utility model is achieved in that high strength calcium sulfate cotton fiber plate, is made up of sulfuric acid calcium powder cotton fiber, water, waterproof agent, and it is base material that its characteristics are with the industrial residue phosphogypsum, makes reinforcing rib with cotton fiber; Its sheet material is by upper and lower thin top layer, and middle more coarse layer is formed, and the intermediate layer is made up of thick cotton fiber and thick phosphogypsum powder, and upper and lower surface course is to be made of fine fibre and thin phosphogypsum powder.

Plate surface is provided with watermark wood grain or glue decorated surface woodgrained paper structure.

Further improve that to be described sheet material by the land plaster of even thickness combine with cotton fiber forms, make that gypsum and fiber alignment are equally distributed to be combined.

Perhaps, described sheet material is that the land plaster and the cotton fiber of thickness grading structure constitutes, the excessive naturally be combined into of combined type.

Compared to existing technology, the utlity model has following advantage:

1, utilize the industrial residue chemical gypsum to make main base material, the fiber that utilizes waste cotton to weave is made reinforcing rib, has increased the intensity of plate; Both solve environmental protection and land occupation problem, effectively reduced board cost again;

2, base material combines no specific (special) requirements with reinforcing rib, but thickness is taken into account, combination arbitrarily, and each is to the greatest extent required as required;

3, waterproof, fireproof performance are good, belong to environmental protection building material;

4, surfacing, smooth, available watermark ink print wood grain;

5, can stick with glue the woodgrained paper facing;

6, sheet material can be sawed, can dig, can follow closely, and is convenient to construction, can make various plate fitments;

Description of drawings

Fig. 1 is the utility model first embodiment structural representation;

Fig. 2 is the utility model second embodiment structural representation;

Fig. 3 is the utility model the 3rd embodiment structural representation.

The specific embodiment

Embodiment 1: as shown in Figure 1, a kind of high strength calcium sulfate gypsum cotton fiber plate is made up of after treatment chemical gypsum, cotton fiber, water, waterproof agent, is base material with the industrial residue chemical gypsum, makes reinforcing rib with waste cotton fiber; Its sheet material is by upper and lower thin top layer 1, the center is that more coarse layer 2 is formed, intermediate layer 2 is to add coagulating agent by thick cotton fiber and alligatoring land plaster to form, and upper and lower surface course 1 is to be added to suppress after waterproof agent adopts machinery to mat formation by fine fibre and refinement land plaster to form again.Described fineness degree is that 100-450 purpose raw material is a benchmark.

Plate surface is covered with watermark wood grain or glue decorated surface woodgrained paper structure 3.

Its overall dimensions are made plurality of specifications as required, as: long 2400mm, wide 1220mm, thick 6-15mm; Or: long 3000mm, wide 1200mm, thick 6-15mm or the like.

Embodiment 2: as shown in Figure 2, as different from Example 1, its sheet material is combined with cotton fiber by the chemical gypsum powder of even thickness and forms 4, makes that chemical gypsum and fiber alignment are equally distributed to be combined.

Embodiment 3: as shown in Figure 3, different with the foregoing description is that its sheet material is that the chemical gypsum powder and the cotton fiber of thickness grading structure constitutes 5, the excessive naturally be combined into of combined type.

The utility model makes full use of the industrial residue chemical gypsum, and its product purpose is wide, and its specific radioactivity is 0.25, be lower than 1 GB; Fluorine content 0.8mg/L is lower than the fluorine-containing standard of the 5mg/L of State Environmental Protection Administration's " ardealite building standard "; It is the building board product of environment-friendly type.Its physical chemistry technical indicator after testing:

A: rupture strength: e8 〉=13MPa;

B: screw withdrawal force: 〉=180N/mm;

C: moisture content :≤10%

D: hygroexpansivity :≤0.025%

E: density: 1.3g/Cm3

F: radiological measuring is: 0.25;

G: fluorinated volume is 0.8mg/L;

H: noninflammability: A level

I: coefficient of thermal conductivity: 0.29W/M.K.

The utility model high strength calcium sulfate gypsum cotton fiber plate, its plate surfacing is smooth, this plate can combine with husky ashes of various cement or putty, but and watermark facing and gluing facing, be to substitute various decorative panel for buildings and furniture is made the sheet material of usefulness.Have the intensity height, the characteristics that physical and mechanical property is good, and product cost is extremely low.Can be used for building partition, finishing furred ceiling, packing plate, plate fitment, construction formwork, but and deep processing making composite floor board.

Claims (1)

1, high strength calcium sulfate cotton fiber plate is characterized in that: its sheet material is formed the three layer construction formula by upper and lower thin top layer (1), middle more coarse layer (2); Plate surface also is provided with watermark wood grain or glue decorated surface woodgrained paper structure (3).

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