CN1071654A - The preparation of multi-function plaster composite board and technology - Google Patents

Abstract

The invention belongs to a kind of preparation and technology of multi-functional composite gypsum board, the moistureproof decorated gypsum board of this high strength is a main raw material with terra alba, joins silicate cement, pearlstone, glass fibre, additive, water mixing stirring, and repeatedly cast is made.It has high strength, indeformable, moisture resistance can be good, also has fabulous fire resistance and stylish floral designs, plate face grace attractive in appearance, and sound construction, in light weight, less investment, instant effect, effective.

Description

The preparation of multi-function plaster composite board and technology

The present invention relates to the preparation and the technology of a kind of ornamental high-strength fire-retardant, moistureproof multi-function plaster composite board.

As everyone knows, gypsum has been widely used in society as decorating, has benefited the people, mainly be because it have in light weight, soundproof effect is good, the moisture resistance moisture-proof characteristic is good, but decorated gypsum board in the market, its major defect weak strength, frangible yielding, the decorative pattern image is single.

Purpose of the present invention is invented a kind of high strength for overcoming above-mentioned weak point, and indeformable, fire prevention, protection against the tide, sound insulation, heat-proof quality are good, the multi-function plaster composite board of clear patterns, decorative pattern exquisiteness.

The multi-functional composite gypsum board of high strength of the present invention, be to be main raw material with the plaster of Paris, mixing various subsidiary material such as an amount of silicate cement, pearlstone, glass fibre, additive and water stirs and becomes slurry, through the second pouring composite molding, seasoning or oven dry then, make the high strength decorated gypsum board of the protection against the tide of not being with mask paper, fire prevention, sound-insulating and heat-insulating cooling, its main compound method and technology are as follows:

A prescription: (precentagewise preparation)

Terra alba 70～85%

Silicate cement 2～8%

Pearlstone 1～5%

Additive 1～5%

Water 10～30%

Glass fibre 2～8%

The B preparation:

(1) cement adopts the 525# silicate cement, guarantees timber intensity;

(2) mix the above pearlstone of goods of inferior quality and alleviate the sheet material mass area ratio;

(3) fiber adopts alkali containing glass fibre to be processed into the long short silk of 15～20mm;

(4) it is formulated that additive adopts polyvinyl alcohol, sugar, alkali, lotus root starch, Tai-Ace S 150, ammonium dichromate etc.

C technology:

With terra alba, silicate cement, pearlstone, the additive precentagewise is equipped with and adds the top layer that pulpous state is made in tap water mixing stirring, the bottom lining, table, the bottom lining does not add glass fibre, for preventing that the slip layering from influencing the calcium plaster quality, each amount that stirs a sheet material, it is promptly pourable that capstock stirred for 30 seconds, add glass fibre in the remaining slip rapidly, restir is promptly pourable 30 seconds, adopt the second pouring composite molding, to wipe off immediately after the capstock cast, the cast underlying material scrapes off surplus slurry then rapidly, treats gypsum slurry hydration reaction in the mould, emit heat, temperature raises, (general 15 minutes) demoulding when reaching top temperature, after the demoulding indoor maintenance 3～4 days, place dry or oven dry under the sun again, repair sheet material dry back, sprays twice with 106 coating in the sheet material front then, packs after the assay was approved and store.

High strength multi-function plaster composite board of the present invention, moisture resistance can be good, and the distortion amount of deflection is little, not only are fit to north cold area, also are fit to southern damp-heat area upholstery, and fire prevention, heat-proof quality are good, handsome in appearance, with low cost, are the ideal finishing material.

Claims (1)

1, a kind of preparation of multi-function plaster composite board and technology is characterized in that:

A, prescription: (precentagewise preparation)

Terra alba 70～85%

Silicate cement 2～8%

Pearlstone 1～5%

Additive 1～5%

Water 10～30%

Glass fibre 2～8%

B, preparation:

(1) adopt the 525# silicate cement to guarantee timber intensity;

(2) mix the above pearlstone of goods of inferior quality and alleviate the sheet material weight per unit area;

(3) fiber adopts alkali containing glass fibre to be processed into the long short silk of 15～20mm;

(4) additive is formulated with polyvinyl alcohol, sugar, alkali, lotus root starch, Tai-Ace S 150, ammonium dichromate etc.,

C, technology:

With terra alba, silicon, acid salt cement, pearlstone, additive, precentagewise is joined, add tap water and mix the top layer that pulpous state is made in stirring, the bottom lining, table, the bottom lining does not add glass fibre, for preventing that the slip layering from influencing the calcium plaster quality, each amount that stirs a sheet material, it is promptly pourable that capstock stirred for 30 seconds, add glass fibre in the remaining slip rapidly, restir is promptly pourable 30 seconds, adopt the second pouring composite molding, to wipe off immediately after the capstock cast, the cast underlying material scrapes off surplus slurry then rapidly, treats gypsum slurry water reaction in the mould, emit heat, temperature raises, (general 15 minutes) demoulding when reaching top temperature, after the demoulding indoor maintenance 3～4 days, place dry or oven dry under the sun again, repair sheet material dry back, sprays twice with 106 coating in the sheet material front then, packs after the assay was approved and store.