CN1030310C

CN1030310C - Modified chloromagnesite sheet product

Info

Publication number: CN1030310C
Application number: CN92100089A
Authority: CN
Inventors: 瞿赞明
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-16
Filing date: 1992-01-16
Publication date: 1995-11-22
Anticipated expiration: 2007-01-16
Also published as: CN1065447A

Abstract

The present invention relates to a 'PSC' high strength convergent plate which belongs to the field of novel building materials. The present invention is composed of fly ash, light-burnt magnesium powder, magnesium chloride solution and PSC additive, wherein PSC additive is organic and inorganic polymer, and hydraulicity magnesium silicate substances are generated. The plate has the characteristics of light weight, high strength, water resistance, fire resistance, no deformation and being nailed, sawn and planned performance. The present invention can be used for making plywood doors, furniture, thermal insulation mobile house plates and circular hole or aporate partition plates. Compared with a magnesium oxychloride plate, the strength intensity of the magnesium oxychloride plate which is soaked in water for half a year is only 11% of the original strength intensity, but the strength intensity of the PSC plate which is soaked in water for half a year is 98% of the original strength intensity. The property of the magnesium oxychloride plate is not stable, the magnesium oxychloride plate is hygroscopic, warped and deformed when the magnesium oxychloride plate is wet, but the PSC plate does not have the phenomena of deformation, warping and hygroscopicity.

Description

Modified chloromagnesite sheet product

The modified chloromagnesia board product belongs to the New Building Materials field.

Modified chloromagnesia board product material composition (1) is to catch settled flyash to receive in the thermal power plant boiler flue, account for total composition 40%, (2) light-burning magnesium powder accounts for 25%, (3) magnesium chloride brine (20 ℃ of degree Beaume) accounts for 20%, (4) modified additive accounts for 15%, after above raw material mixes the slip of furnishing pasty state, chemical reaction takes place, be put on above the woven fiber glass, or be sprayed on the woven fiber glass, solidify the material that the back generates the hydraulicity, just can form sheet material through spraying, cold pressing, pour into a mould three kinds of processing methodes.

This plate has light weight, high-strength, water-fast, indeformable, the characteristics that can follow closely, can saw, can dig.Purposes is very extensive, and the thin plate of 2-3mm can be made into the plate face of flush door, antitheft door, replaces traditional three-ply-wood or fiberboard, and steel plate also can be made into kitchen furniture, hanging cupboard, replaces medium-density plate, or shaving board.Simultaneously also can be compound with polystyrene foam, be made into thermal insulating composite panel, be used for body of wall, exterior wall internal insulation cuts off wallboard.Also can make thermal insulation moveable house and balcony door central layer.

The modified chloromagnesia board product relatively has many good qualities with other sheet materials: to compare unit weight light with plasterboard, plasterboard unit weight 900Kg/m ³, and modified chloromagnesia sheet material unit weight 500Kg/m ³, water resisting property is strong, and waterproof gypsum board is unable to undergo the immersion of 24h in water, and modified chloromagnesia sheet material can soak three months intensity and remain unchanged in water.Compare with the magnesite plate, the magnesite plate soaks half a year intensity and has only 11% of former intensity in water, reaches former intensity 94% and soak half a year intensity in the water of modified chloromagnesia sheet material, and the character instability of magnesite plate is made moist and returned the halogen buckling deformation.And the modified chloromagnesia plate is indeformable, can make 2 meters long, and 1 meter wide, and the thin plate that 2mm is thick uses separately, does not exist the distortion warpage to return the halogen phenomenon.

Modified chloromagnesia board product composition of raw materials ratio is pressed 100 parts of calculating:

40 parts in flyash (containing silicon-dioxide more than 50%, fineness R80 screen over-size 7.6%)

25 parts of light-burning magnesium powders (magnesium content is more than 85%)

20 parts of magnesium chloride solutions (20 ℃ of degree Beaume)

15 parts of modified additives, modified additive is made up of phosphoric acid, ferrous sulfate, calcium oxide, Vinyl Acetate Copolymer.Modified additive weight is calculated by 100%:

Wherein phosphoric acid accounts for 30%, and ferrous sulfate accounts for 5%, calcium oxide 45%, Vinyl Acetate Copolymer 20%(solid content 50%)

Modified chloromagnesia board making technology A, gunite, B, cold press process, C, casting.

More than three kinds of technologies, different technology can be produced difform product.

A, spray technology

Adopt screw mortar squirt pump, the LSB-1.2 type, the Weihe River, Henan city Construction Machinery Plant produces.So the spray technology ginseng is as follows:

Emitted dose (1/min) 5-20 spraying pressure (Mpd) 5

Mix up slip by above-mentioned prescription and go in the pump, select plastic mould for use, spread mold oil above the template, woven fiber glass is tiled on the template, with spray gun directly toward woven fiber glass above material spray starch, as the plate of need 2mm thickness, when having sprayed the first layer woven fiber glass, add one deck woven fiber glass again, the thickness of every increase 1mm just adds one deck woven fiber glass, through 4-8 hour chemical reaction, the demoulding of just can hardening just forms sheet material after the deburring.

B, pressure forming

Pressure forming is to be used for making 10-60mm hollow shelf or warming plate, the plate face and the furniture of various door-plates (flush door, antitheft door), and pressure forming is once shaped.

Making method: plastic mould is placed on one holds mold oil above the platform, woven fiber glass is tiled on the template, slip is prepared by above-mentioned prescription, be poured on above the woven fiber glass floatingly, at this moment the wooden frame shelf be placed on above the template of smearing, the thickness of the thickness of wooden frame shelf decision finished product.Fill in the wooden frame, polystyrene foam or fluting board grid (seeing accompanying drawing one), getting another piece plastic mould uses with quadrat method shop woven fiber glass, floating slip, with sandwich polystyrene foam or fluting board grid in the middle of next closes on two templates, send to pressurization, after solidifying in 4-8 hour, one up and down, sandwich polyphenylene heat insulation slab in deburring just forms, the hollow flush door (seeing technical process accompanying drawing three) of interior sandwich fluting board, but the method applying pressure machine of pressurization, also available indigenous method, after bolster lumps together, put a big plate pressurization above, the way pressurization of linking closely simultaneously with the screw mandrel screw, pressure is not less than one ton pressure.

C, the pouring technology moulding of modified chloromagnesia board product

Mainly be to produce hollow partition board or light cellular partition board.Modern high-rise building need be with a large amount of partition plates, requirement has that unit weight is little, intensity is high, shock resistance, sound insulation, heat insulation, performance such as do not fire, in order to process and to install and requiring it can follow closely, can dig, can saw, partition plate is divided into abacus and two kinds of shapes of imperforate plate.Making method is selected for use the 60mm angle bar to do the mould limit to put a plastic plate on platform, it is good that angle bar is pressed the specification sign indicating number, two limits are left circular hole and are inserted round steel pipe, slip is prepared by above-mentioned prescription, be cast in the core rod through 4-8 hour with regard to the solidifiable demoulding, extract steel pipe out and just be formed with hole circle orifice plate (seeing Figure of description two), do not put into steel pipe in the core rod, put into the light material polystyrene foam, or perlite fills out core, can form the atresia light cellular partition board.

Claims

1, a kind of modified chloromagnesia board product, with the magnesium oxide magnesium chloride is agglutinate, woven fiber glass is a skeleton, flyash is filler, composition of raw materials ratio: 40 parts of (containing silicon-dioxide more than 50%) R80 screen over-sizes of flyash, 25 parts of light-burning magnesium powders, (magnesium content is more than 85%), 15 parts of 20 parts of (20 ℃ of degree Beaume) modified additives of magnesium chloride brine, available fluting board (honeycomb paper) or the polystyrene foam of comprising in the middle of the sheet material, perlite is filled out core, it is characterized in that modified additive is by phosphoric acid, ferrous sulfate, calcium oxide, Vinyl Acetate Copolymer is formed, and the admixture total amount is by 100 parts of calculating, phosphoric acid accounts for 30%, ferrous sulfate 5%, calcium oxide 45%, Vinyl Acetate Copolymer 20% (solid content 50%).

2, the described modified chloromagnesia board product of claim 1 is used to make flush door, antitheft door, kitchen furniture, hanging cupboard, warming plate, prefabricated house plate, door panel, partition plate, its structure is an available fluting board in the middle of the two panel materials, and polystyrene foam or perlite are filled out core.