CN108979049A

CN108979049A - High strength net surface gypsum board

Info

Publication number: CN108979049A
Application number: CN201810984640.9A
Authority: CN
Inventors: 赵嘉珩; 赵建纲
Original assignee: ZHENGZHOU SUNDY BUILDING TECHNOLOGY Co Ltd
Current assignee: ZHENGZHOU SUNDY BUILDING TECHNOLOGY Co Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2018-12-11

Abstract

The present invention proposes a kind of high strength net surface gypsum board, including off line, core, online；Including off line, core, online；The off line lower part positioned at core covers core lower surface, and in core lower surface, insert depth is not more than 3 millimeters；Core is predominantly located at and off line between online and online and off line will be wrapped in inside core surface, its section is that rectangle online is embedded in core upper surface, and it falls into core surface, it is docked with off line two sides online two sides, core is made of gypsum filler, gypsum filler is stirred into gypsum slurry by land plaster, fiber, additive and water and solidifies, fibre length 0-16mm, and the weight percent of fiber and core is 0.05%-0.1%.Due to using two-sided embedded glass fiber net and fiber is added in core, the integral strength of plasterboard is improved, while overcoming existing plasterboard to produce the limitation that thickness is more than 12 millimeters.

Description

High strength net surface gypsum board

Technical field

The invention belongs to building field, in particular to a kind of high strength net surface gypsum board.

Background technique

Plasterboard is one of common construction material, is commonly used in decorations, has pollution-free, performance stabilization, cost Low advantage, still, the method that existing plasterboard must use Double-face adhesive paper in production and in application, because existing Production plasterboard land plaster intensity it is low, it is frangible, need to make up the deficiency of its intensity using the intensity of outer surface paster；Cause Higher for the intensity requirement to paper, the paper of veneer must use magma paper, thus with respect to the production cost improved； Since its surface is using paster, during its decorations, need when other decorations layers are fitted up on its surface again, dress The substrate of exterior material is paper, if by long period paper make moist, falling off for surface finishes will be caused, influence using and It is beautiful；For these reasons, plasterboard is caused to be restricted in the application of building decoration area；Therefore, people are in order to reduce The production cost of plasterboard solves the problems, such as secondary decoration, uses and fibrous matter is added in land plaster to increase The intensity of plasterboard itself, but its production cost is still very high, and integral strength is lower；It furthermore is exactly the method production using casting There is no a plasterboard of paper, but due to can not continuous production, production efficiency is low, equally increases production cost, Er Qieqi Specification is restricted, without promotional value.

Summary of the invention

It is at high cost for Thistle board existing in the prior art, waste green natural resources, fibrous plaster intensity The defects of low, at high cost, pouring gypsum plate production efficiency is low, and specification is limited, and secondary decoration is insecure, the present invention proposes a kind of high Intensity wire side plasterboard, it is characterised in that: including off line, core, online；The off line lower part positioned at core covers core Body lower surface, and in core lower surface, insert depth is not more than 3 millimeters；The core is predominantly located at off line and upper It is wrapped in inside core surface between net and by online with off line, section is rectangle；The online is embedded in table on core Face, and falling into core surface, falls into depth no more than 3 millimeters, the core with a thickness of being greater than 6 millimeters, it is described Online two sides are docked with off line two sides, and the core is made of gypsum filler, and the gypsum filler is by land plaster, fibre Dimension, additive and water are stirred into gypsum slurry and solidify, and the fibre length is 0-16mm, the weight of fiber and core Amount percentage is 0.05%-0.1%.

Further, described off line by alkali-resistant glass fibre, glass fibre or nylon or wire or natural Fiber is made, and mesh is polygonal hole or circular hole, and the cell inner diameter is 2-6 millimeters.

Further, the land plaster includes that alpha semi-hydrated gypsum or β type building gypsum or anhydrous type gypsum are made.

Further, the land plaster includes the mixture of 5%-70% semi-hydrated gypsum and anhydrous III type gypsum, 20%-80% Anhydrous II type gypsum, other compositions are impurity；The mixture of the semi-hydrated gypsum and anhydrous III type gypsum, is by ardealite The mixing of anhydrous III type gypsum that calcination temperature is generated at 200 °C -360 °C and the semi-hydrated gypsum that 130 °C -200 °C whens generate Object；This is the mixture formed in ardealite calcination process；The anhydrous II type gypsum, is that ardealite is calcined to 360 ° The anhydrous II type gypsum generated when C；Other substances contained inside ardealite when the impurity is ardealite calcining are through calcining The impurity formed afterwards；Semi-hydrated gypsum, anhydrous II type gypsum, anhydrous III type gypsum and the impurity is all powdery.

Further, the fiber is one of alkali-resistant glass fibre, glass fibre, nylon, plant fiber or more Kind mixing, the plant fiber is sawdust, sawdust, plant stalk crushed material.

Further, the core is handled by foaming；The foaming processing is will using physics and chemical mode Gypsum slurry foams；To mitigate the overall weight of core；The foaming is that foaming agent is added in gypsum slurry, is being starched It is added when material stirring, foamed slurry is generated after stirring；The foaming agent is surfactant, is dodecyl sodium sulfate, ten One or more mixing of sodium dialkyl sulfate and hydrogen peroxide.

Further, the online has one by alkali-resistant glass fibre, glass fibre, nylon, wire, natural fiber etc. The filiform for determining tensile strength is made, and mesh is polygonal hole or circular hole, and internal diameter is 2-6 millimeters；The online two It is docked with off line two sides side.

Further, the core is added with water-reducing agent by forming including land plaster in the land plaster.

The high strength net surface gypsum board is produced using following methods, it is characterised in that: 1, install web-like net On the paper bowl up and down of gypsum board production line；2, land plaster, fiber and foaming agent are added to the slurry for being located at gypsum board production line In the circular pan mixer of input terminal, add water and stir；3, the net end in upper and lower net roll is drawn to the rear portion of compression roller；4, By the gypsum mixed slurry after stirring from blender slurry outlet be evenly supplied to online and it is off line between, and started shipment with off line one It is dynamic；6, it is coated with online and off line and mixed gypsum slurry mixed with foaming agent is squeezed between a pair of of compression roller, make It must surf the Internet and the off line interior surface for being compressed in gypsum slurry, and mixed gypsum slurry is suppressed into design thickness；7, table Face pressure light；Two surfaces above and below the mixed gypsum slurry gradually solidified are pressed by the felt wrapped roll being mounted on gypsum board production line Light；8, it dries；The plasterboard after solidification is dried by the baking oven of certain temperature；9, it cuts；Using on gypsum board production line The plasterboard of continuous length is cut into design length by cutter device；The gypsum board production line refers to that Thistle board is automatic Tinuous production does minor modifications using existing equipment in this way and is just able to produce in the present invention since the production line is expensive High strength net surface gypsum board use, avoid the waste of existing equipment, reduce investment in fixed assets.

Beneficial effect

The beneficial effects of the present invention are improve the intensity of plasterboard itself, get rid of due to using high strength gypsum powder The predicament that double-faced sticking paper must be used, reduces costs, reduces the felling to trees, while overcoming existing plasterboard cannot Production thickness is more than 12 millimeters of limitation；Due to using two-sided embedded glass fiber net and fiber is added in core, improve The integral strength of plasterboard, at the same in secondary decoration finishing material it is in combination be plasterboard main body, it is therefore prevented that because of paper It falls off caused by dampness；Due to using traditional handicraft, existing equipment is preferably utilized, and realize the company of no Thistle board Continuous production.

Detailed description of the invention

Fig. 1 is cross-sectional structure schematic diagram of the invention

1. off line, 2. cores, 3. online, 4. fibers.

Fig. 2 is production model of the present invention on gypsum board production line

Net roll on 51., 52. circular pan mixers, 53. lower net rolls, 54. gypsum board production line main bodys, 55. compression rollers.

Specific embodiment

Technical solution in order to further illustrate the present invention, now in conjunction with Detailed description of the invention a specific embodiment of the invention.

Embodiment one

Such as Fig. 1, Fig. 2, in this example by taking 7 millimeters of thickness of plasterboard as an example, select off line 1 and online 3 be 3 millimeters of X3 millimeters of rectangles The general commercially available glass fiber net of the industry in hole, the coiled material for selecting one fixed width, which is used as, applies raw material, wherein off line 1 width Greater than 14 millimeters of width of online 3；High strength gypsum powder is selected in this example, it can be using including α gypsum and β gypsum mixing system At, or the land plaster being made of mixed phase gypsum, the land plaster preferentially used in this example include 5%-70% semi-hydrated gypsum and The mixture of anhydrous III type gypsum, the anhydrous II type gypsum of 20%-80%, other compositions are impurity；The semi-hydrated gypsum and nothing The mixture of III type gypsum of water is the anhydrous III type gypsum for generating ardealite calcination temperature at 200 °C -360 °C and 130 ° The mixture of the semi-hydrated gypsum generated at C-200 °C；This is the mixture formed in ardealite calcination process；Described is anhydrous II type gypsum is the anhydrous II type gypsum generated when ardealite to be calcined to 360 °C；The phosphorus when impurity is ardealite calcining The impurity that other substances contained inside gypsum are formed after calcining；The semi-hydrated gypsum, anhydrous II type gypsum, anhydrous III type Gypsum and impurity are all powderies, that is, use industry by-product gypsum ardealite or desulfurized gypsum, are generated by calcining The mixture that anhydrous gypsum and semi-hydrated gypsum and calcining impurity are formed, because it was proved that, the test block of land plaster production, Its intensity can reach 14.5MPa, this provides advantage without Thistle board to production, while can accomplish waste benefit With further decreasing production cost, moreover, because gypsum core 2 self-strength is high, the thickness of plasterboard can not be limited by size System；The land plaster is added into water according to the ratio of 1:0.35-0.7, is put into the circular pan mixer 52 on gypsum board production line, adds Enter foaming agent and fiber 4, select surfactant in this example, is dodecyl sodium sulfate, lauryl sodium sulfate and hydrogen peroxide Mixture as foaming agent, in this example fiber 4 be one of alkali-resistant glass fibre, glass fibre, nylon, plant fiber or A variety of mixing, 4 length of fiber are 16mm, and the weight percent of fiber 4 and core is 0.05%.By off line 1 installation of web-like In the lower net roll 53 of gypsum board production line, signified lower net roll 53 can be using under existing gypsum lath product line herein Paper paper bowl is as lower net roll 53；The online 3 of web-like is mounted in upper net roll 51, signified upper net roll 51 can use herein The upper paper paper bowl of existing gypsum lath product line is as upper net roll 51；Existing gypsum lath product line is used in this example Main body as gypsum board production line main body 54, using the compression roller of existing gypsum lath product line as compression roller 55, And existing structure and the process layout of existing gypsum lath product line；The gypsum board production line of meaning refers both to above above Existing Thistle board automatic continuous production line；Before production, now will online 3 and off line 1 manually by its end draw to from squeeze It is passed through between the up-down rollers of pressure roller 55, starts disk blender 52, it is raw that the mixed gypsum slurry being stirred is transported to plasterboard In producing line main body 54, and it is located between online 3 and off line 1, the conveying positioned at off line 1 lower part in gypsum board production line main body 54 Device, the movement of off line in drive and mixed gypsum slurry, and automatically by off line 1 liang of side edgefold, when moving to 55 position of compression roller, Mixed gypsum slurry is squeezed into a thickness of 7 millimeters compression roller 55 and upper and lower surface is embedded in glass fiber net, core 2 is formed, through later Continuous drying equipment, cut-off equipment, it will be able to produce the glass fiber net plasterboard of no paper；Drying equipment above-mentioned and cutting Equipment is the drying equipment on existing Thistle board automatic continuous production line, the existing structure of cut-off equipment.

Embodiment two

Embodiment one is repeated, by following difference: the core is made of gypsum filler, and the gypsum filler is by gypsum Powder, fiber, additive and water are stirred into gypsum slurry and solidify, and the fibre length is 10mm, fiber 4 and core Weight percent be 0.1%.The land plaster of embodiment one kind is added into water according to the ratio of 1:0.35-0.7, it is raw to be put into plasterboard In circular pan mixer 52 in producing line, foaming agent is added, selects surfactant in this example, is dodecyl sodium sulfate, ten The mixture of sodium dialkyl sulfate and hydrogen peroxide as foaming agent, can also be added in circular pan mixer 52 simultaneously mountain flour, Fine sand, perlite, vermiculite, EPS particle etc..

Claims

1. a kind of high strength net surface gypsum board, it is characterised in that: including off line, core, online；It is described off line positioned at core Lower part covers core lower surface, and in core lower surface, insert depth is not more than 3 millimeters；The main position of the core In it is off line online between and will online and it is off line be wrapped in inside core surface, section be rectangle；The online insertion In core upper surface, and fall into core surface, fall into depth no more than 3 millimeters, the core with a thickness of being greater than 6 millis Rice, the online two sides dock with off line two sides, and the core is made of gypsum filler, the gypsum filler by Land plaster, fiber, additive and water are stirred into gypsum slurry and solidify, and the fibre length is 0-16mm, fiber Weight percent with core is 0.05%-0.1%.

2. high strength net surface gypsum board according to claim 1, it is characterised in that: described is off line by alkali-proof glass fibre Dimension, glass fibre or nylon or wire perhaps natural fiber be made its mesh be polygonal hole or circular hole, it is described Cell inner diameter is 2-6 millimeters.

3. high strength net surface gypsum board according to claim 1, it is characterised in that: the core is by gypsum filler group At；The gypsum filler is made of land plaster；The land plaster includes alpha semi-hydrated gypsum or β type building gypsum or anhydrous Type gypsum is made.

4. high strength net surface gypsum board according to claim 1, it is characterised in that: the land plaster: including 5%-70% The mixture of semi-hydrated gypsum and anhydrous III type gypsum, the anhydrous II type gypsum of 20%-80%, other compositions are impurity；Described half The mixture of water gypsum and anhydrous III type gypsum is anhydrous III type for generating ardealite calcination temperature at 200 °C -360 °C The mixture for the semi-hydrated gypsum that gypsum and 130 °C -200 °C whens generate；This is the mixture formed in ardealite calcination process； The anhydrous II type gypsum is the anhydrous II type gypsum generated when ardealite to be calcined to 360 °C；The impurity is phosphorus stone The impurity that other substances contained inside ardealite when cream is calcined are formed after calcining；The semi-hydrated gypsum, anhydrous II type stone Cream, anhydrous III type gypsum and impurity are all powderies.

5. high strength net surface gypsum board according to claim 1, it is characterised in that: the fiber is that alkali-proof glass is fine One of dimension, glass fibre, nylon, plant fiber or a variety of mixing, the plant fiber are sawdust, sawdust, plant rod Stem crushed material.

6. high strength net surface gypsum board according to claim 1, it is characterised in that: the core adds stone by land plaster Powder, fine sand, perlite, vermiculite, EPS particle etc. mix.

7. high strength net surface gypsum board according to claim 1, it is characterised in that: the core is handled by foaming； The foaming processing is that gypsum slurry is foamed using physics and chemical mode；To mitigate the overall weight of core；Institute The foaming stated is that foaming agent is added in gypsum slurry, is added in slurry agitation, foamed slurry is generated after stirring；The hair Infusion is surfactant, is one or more mixing of dodecyl sodium sulfate, lauryl sodium sulfate and hydrogen peroxide.

8. high strength net surface gypsum board according to claim 1, it is characterised in that: the online is by alkali-proof glass fibre Dimension, glass fibre, nylon, wire, natural fiber etc. have the filiform of certain tensile strength to be made, and mesh is polygonal hole Or circular hole, internal diameter are 2-6 millimeters；It is docked with off line two sides the online two sides.