CN101879792A - Low-water absorption composite board and preparation method thereof - Google Patents
Low-water absorption composite board and preparation method thereof Download PDFInfo
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- CN101879792A CN101879792A CN 201010141097 CN201010141097A CN101879792A CN 101879792 A CN101879792 A CN 101879792A CN 201010141097 CN201010141097 CN 201010141097 CN 201010141097 A CN201010141097 A CN 201010141097A CN 101879792 A CN101879792 A CN 101879792A
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Abstract
The invention relates to a low-water absorption composite board and a preparation method thereof. The composite board comprises a base plate, and water resisting layers respectively composited on the two outer surfaces of the base plate. The preparation method comprises the following steps: step 1: preparing the base plate; step 2: drying the base plate; step 3: respectively covering liquid water resisting coating on the two outer surfaces of the dried base plate to form the water resisting layers; and step 4: drying the composite board prepared in step 3, drying the water resisting layers and firmly sealing the same on the outer surfaces of the base plate. The invention has outstanding and substantial characteristics that: 1. the water resisting layers are composited on the surfaces to block a water-absorbing channel, reduce the water absorption of the composite board, have the characteristics of low water absorption, little deformation, low shrinkage, no halogen reoccurrence and the like, and expand the scope of adaptability and use effect of a glass magnesium plate; 2. light particles can be added into the base plate on actual demand, simultaneously the same low water absorption is realized, the proportion of the composite board is reduced, and the moving, transportation, decoration and construction are convenient.
Description
[affiliated technical field]
The present invention relates to a kind of composite plate and preparation method thereof, relating in particular to surface recombination has water barrier to reduce a kind of low-water absorption composite board of composite plate water absorption rate and preparation method thereof.
[background technology]
With magnesium chloride, magnesia is that the sheet material produced of gel rubber material is a lot, and because of its material of producing sheet material is an incombustible material, so claim PLASTIC LAMINATED, the national sector standard name is called " glass fibre and magnesium cement board ".Glass fibre and magnesium cement board has and does not burn, the advantage that intensity is high, and a large amount of glued boards and Thistle boards of substituting form very big production and selling market in building decoration.
" glass fibre and magnesium cement board " main material of selling in existing market is that magnesia, magnesium chloride etc. belong to the inorganic gel material.These inorganic gel materials have the big characteristic of water absorption rate, generally added the bigger light material of water absorption rates such as wood powder, expanded perlite, have gel rubber material is foamed in the production process, further strengthened the water absorption rate of " glass fibre and magnesium cement board " in order to reduce proportion.Cause ubiquitous problem: damp suction surface halide accumulation, distortion, shrinkage factor are big, serious cracking etc., have a strong impact on result of use, even lose use value.Analyze its reason, except that manufacturer manufactured in a rough and slipshod way, key issue was that the water absorption rate of " glass fibre and magnesium cement board " causes greatly.Water absorption rate is big more, and the phenomenon of returning halogen, distortion, cracking is serious more, therefore, reduces the water absorption rate of " glass fibre and magnesium cement board ", is to solve to return halogen, distortion, key that shrinkage factor is big.
[summary of the invention]
The object of the present invention is to provide a kind of low-water absorption composite board and preparation method thereof, surface recombination has water barrier, the blocking-up water absorption channel, reduce the water absorption rate of composite plate, solve the problems referred to above that the prior art scheme exists, make composite plate have that water absorption rate is low, distortion is little, shrinkage factor is little, the performance of halogenation.
The present invention solves the technical scheme that the prior art problem adopted: a kind of low-water absorption composite board is characterized in that comprising substrate, is compounded in the water barrier of substrate two outer surfaces respectively.Water barrier is used to block basic suction, reduces the water absorption rate of composite plate, improves the composite plate performance, has that water absorption rate is low, little, the characteristics such as shrinkage factor is little, halogenation of distortion, enlarges accommodation and result of use.
As the further of technique scheme improved and replenish, the present invention adopts following technical measures: composite reinforcing material layer in the described substrate.The increase of layers of reinforcement helps improving the bending resistance of composite plate, improves intensity.
The material of described basic unit is an inorganic gel, perhaps is inorganic gel and lightweight filler mixture.Inorganic gel is magnesia oxychloride cement, portland cement, gypsum etc., can add modifier when configuration, and modifier is the abbreviation of modified additive, and the every additive that can improve the various performances of magnesium cement all can be referred to as modifier.It improves water isolating and mechanical property to improving the structural stability of magnesia oxychloride cement, and surface halide accumulation resistance, scum, distortion, shortly coagulate, slow setting, increasing the operation workability all has and important effect.Add the lightweight particle, be used to reduce the proportion of composite plate.Because the lightweight particle fully mixes with inorganic gel, inorganic gel is all wrapped up on the surface of lightweight particle, and inorganic gel has fire protecting performance, and therefore, adding the lightweight particle influences whole fire protecting performance hardly.
Described layers of reinforcement is a glass layer; Described lightweight filler is polystyrene foam particle or wood powder or perlite or inorganic gel expanded particle, has hollow cavity in the described inorganic gel expanded particle.The inorganic gel expanded particle is for what form by foaming, and hollow cavity is the air cavity.
A kind of preparation method of low-water absorption composite board, its preparation process is: step 1: the preparation of substrate; Step 2: dry substrate; Step 3: two outer surfaces in dried base plate cover liquid water proof coating respectively, form water barrier; Step 4: the composite plate that drying steps three makes is securely sealed in the outer surface of substrate after the water barrier drying.
The operation of described step 1 is: a1, preparation inorganic gel agent, perhaps, a2, lightweight filler is mixed stirring with the inorganic gel agent, and be mixed with uniform light-weight inorganic gel mixture preparation; B, on template, lay a1 preparation or a2 preparation; C, in the process of laying operation b material, towards the direction of laying stroke, by the pair roller roll extrusion above-mentioned material of upper and lower settings, then, maintenance solidify to form substrate.For existing product, during the preparation baseplate material, if add the lightweight particle, increased water absorption rate, generally all reduced the content of lightweight particle as far as possible, if adopt the content that reduces the lightweight particle, little to the proportion influence of composite plate so, the weak effect that plays.And the composite plate among the application, because surface recombination has water barrier, moisture is difficult to be absorbed by substrate, when reducing water absorption rate, can also reduce the proportion of composite plate simultaneously according to actual needs, makes things convenient for carrying, transportation, decoration construction.
The operation of described step 1 also comprises: lay on template in the operation of a1 preparation or a2 preparation or before this operation begins, on a1 preparation or a2 preparation or lay reinforcing material on template, reinforcing material forms layers of reinforcement in substrate.Reinforcing material is laid the one side that the layers of reinforcement that forms only is arranged on substrate, and perhaps the two sides of substrate all is provided with the laying layers of reinforcement, and perhaps layers of reinforcement is also laid at the middle part of substrate.Main situation and deciding according to the actual requirements.Generally the two sides based on substrate all is provided with the laying layers of reinforcement.
The mode of covering liquid water proof coating in the described step 3 is: at the outer surface brush or the roller of substrate or soak liquid water proof coating, make liquid water proof coating be enclosed in the outer surface of substrate, form airtight water barrier.Main purpose is to make the buffer action of the material of substrate by water barrier, limited control the hygroscopicity of substrate, effectively reduce the water absorption rate of substrate.Reduced the discharge rate of substrate simultaneously.
Described water proof coating is that water based emulsion adds the liquid water proof coating that water is modulated into, and it is applied to substrate two surfaces, and penetrates in the pore of substrate surface, forms airtight water barrier, and the blocking-up substrate sucks moisture.
The outstanding substantive distinguishing features that the present invention has: 1, surface recombination has water barrier, the blocking-up water absorption channel, reduce the water absorption rate of composite plate, have that water absorption rate is low, little, the characteristics such as shrinkage factor is little, halogenation of distortion, enlarge the accommodation and the result of use of glass fibre and magnesium cement board; 2, can in substrate, add the lightweight particle according to the actual requirements, have same low water absorption rate simultaneously again, reduce composite plate proportion, make things convenient for carrying, transportation, decoration construction; 3, preparation technology is simple, compares in prior art, and the operation of increase is few, strong operability, the good sealing effect of water barrier.
[description of drawings]
Fig. 1 is the schematic cross-section of a kind of composite plate among the present invention;
Fig. 2 is the schematic cross-section of another kind of composite plate among the present invention.
[specific embodiment]
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Embodiment: a kind of low-water absorption composite board, it comprises substrate 1, is compounded in the water barrier 2 of 1 liang of outer surface of substrate respectively.
The material of basic unit 1 is an inorganic gel, perhaps is inorganic gel and light filler mixture.Inorganic gel is a magnesia oxychloride cement, also can use portland cement, gypsum etc., can add modifier when configuration, and modifier is the abbreviation of modified additive, and the every additive that can improve the various performances of magnesium cement all can be referred to as modifier.It improves water isolating and mechanical property to improving the structural stability of magnesia oxychloride cement, and surface halide accumulation resistance, scum, distortion, shortly coagulate, slow setting, increasing the operation workability all has and important effect.Generally, based on magnesia oxychloride cement.
Composite reinforcing material layer 3 in the substrate 1.Layers of reinforcement is arranged on two surfaces of substrate, on two surfaces of substrate one deck is set respectively, can also multilayer (as shown in Figure 1), and perhaps layers of reinforcement (as shown in Figure 2) is also laid at the middle part of substrate.Decide according to the actual strength conditions of demand.
Layers of reinforcement 3 is a glass fibre; Described lightweight particle is polystyrene foam particle or light materials such as wood powder or perlite.
A kind of preparation method of low-water absorption composite board, its preparation process is: step 1: the preparation of substrate 1; Step 2: dry substrate; Step 3: two outer surfaces at dried substrate 1 cover liquid water proof coating respectively, form water barrier 2; Step 4: the dry composite plate, be mainly used in dry water barrier 2, make it be securely sealed in the outer surface of substrate 1.
The operation of step 1 is: a1, the agent of preparation inorganic gel, and perhaps, a2, inorganic gel agent mix stirring with the lightweight particle with the inorganic gel agent, are mixed with uniform light-weight inorganic gel mixture; B, on template, lay reinforcing material, a1 preparation or a2 preparation successively; C, in the process of laying operation b material, towards the direction of laying stroke, by the pair roller roll extrusion above-mentioned material of upper and lower settings, then, maintenance solidify to form substrate 1, reinforcing material forms layers of reinforcement 3 in substrate.
Water proof coating is that water based emulsion adds the liquid water proof coating that water is modulated into, and it is applied to 1 liang of surface of substrate, and penetrates in the pore on substrate 1 surface, forms airtight water barrier 2, and blocking-up substrate 1 sucks moisture.
The mode of covering liquid water proof coating in the step 4 is: at the outer surface brush or the roller of substrate 1 or soak liquid water proof coating, the outer surface of closed substrate 1.
Claims (10)
1. low-water absorption composite board is characterized in that comprising substrate (1), is compounded in the water barrier (2) of substrate (1) two outer surface respectively.
2. a kind of low-water absorption composite board according to claim 1 is characterized in that the interior composite reinforcing material layer of described substrate (1) (3).
3. a kind of low-water absorption composite board according to claim 1 and 2, the material that it is characterized in that described basic unit (1) is an inorganic gel, perhaps is inorganic gel and lightweight filler mixture.
4. a kind of low-water absorption composite board according to claim 1 and 2 is characterized in that described layers of reinforcement (3) is glass layer; Described lightweight filler is polystyrene foam particle or wood powder or perlite or inorganic gel expanded particle, has hollow cavity in the described inorganic gel expanded particle.
5. a kind of low-water absorption composite board according to claim 3 is characterized in that described layers of reinforcement (3) is glass layer; Described lightweight filler is polystyrene foam particle or wood powder or perlite or inorganic gel expanded particle, has hollow cavity in the described inorganic gel expanded particle.
6. the preparation method of a kind of low-water absorption composite board according to claim 1 is characterized in that its preparation process is: step 1: the preparation of substrate (1); Step 2: dry substrate; Step 3: two outer surfaces in dried base plate (1) apply liquid water proof coating respectively, form water barrier (2); Step 4: the composite plate that drying steps three makes is securely sealed in the outer surface of substrate (1) after water barrier (2) drying.
7. the preparation method of a kind of low-water absorption composite board according to claim 6, the operation that it is characterized in that described step 1 is: a1, the agent of preparation inorganic gel, perhaps, a2, lightweight filler is mixed stirring with the inorganic gel agent, be mixed with uniform light-weight inorganic gel mixture preparation; B, on template, lay a1 preparation or a2 preparation; C, in the process of laying operation b material, towards the direction of laying stroke, by the pair roller roll extrusion above-mentioned material of upper and lower settings, then, maintenance solidify to form substrate (1).
8. the preparation method of a kind of low-water absorption composite board according to claim 6, the operation that it is characterized in that described step 1 also comprises: lay on template in the operation of a1 preparation or a2 preparation or before this operation begins, on a1 preparation or a2 preparation or lay reinforcing material on template, reinforcing material forms layers of reinforcement (3) in substrate.
9. the preparation method of a kind of low-water absorption composite board according to claim 8, it is characterized in that the mode of covering liquid water proof coating in the described step 3 is: at the outer surface brush or the roller of substrate (1) or soak liquid water proof coating, make liquid water proof coating be enclosed in the outer surface of substrate (1), form airtight water barrier (2).
10. the preparation method of a kind of low-water absorption composite board according to claim 9, it is characterized in that described water proof coating is that water based emulsion adds the liquid water proof coating that water is modulated into, it is overlying on the substrate (1), and penetrates in the pore on substrate (1) surface, forms airtight water barrier (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010141097 CN101879792A (en) | 2010-04-08 | 2010-04-08 | Low-water absorption composite board and preparation method thereof |
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| CN 201010141097 CN101879792A (en) | 2010-04-08 | 2010-04-08 | Low-water absorption composite board and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787636A (en) * | 2012-12-12 | 2014-05-14 | 吴松焕 | Nonflammable light-weight panel by advancing the water-proofing and wear resistance and producing method thereof |
| CN109320190A (en) * | 2018-11-28 | 2019-02-12 | 深圳市普源新型材料有限公司 | One kind is moisture-proof to prevent returning halogen glass magnesium board and preparation method thereof |
| US11020940B2 (en) * | 2017-01-12 | 2021-06-01 | Euro Trade Flooring, S.L. | Plate for covering horizontal and vertical surfaces |
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| US5397631A (en) * | 1987-11-16 | 1995-03-14 | Georgia-Pacific Corporation | Coated fibrous mat faced gypsum board resistant to water and humidity |
| CN1115307A (en) * | 1995-07-14 | 1996-01-24 | 朱福照 | Glass fibre light weight cement plate |
| CN2467296Y (en) * | 2001-03-21 | 2001-12-26 | 李洪华 | Decorative board |
| CN2591124Y (en) * | 2002-11-21 | 2003-12-10 | 庄继昌 | Health environment protection composite stone plate body |
| CN2642910Y (en) * | 2003-09-28 | 2004-09-22 | 付志洪 | Composite decorative board made from fiberglass and magnesian compound and plant fiber |
| CN1741860A (en) * | 2002-12-13 | 2006-03-01 | G-P石膏公司 | Gypsum panel having UV-cured moisture resistant coating and method for making the same |
| CN101564718A (en) * | 2008-04-25 | 2009-10-28 | 中国海洋石油总公司 | Painting process for external pasted board layer of gypsum plate |
| CN201889924U (en) * | 2010-04-08 | 2011-07-06 | 支亮 | Composite board with low water absorption |
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2010
- 2010-04-08 CN CN 201010141097 patent/CN101879792A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397631A (en) * | 1987-11-16 | 1995-03-14 | Georgia-Pacific Corporation | Coated fibrous mat faced gypsum board resistant to water and humidity |
| CN1115307A (en) * | 1995-07-14 | 1996-01-24 | 朱福照 | Glass fibre light weight cement plate |
| CN2467296Y (en) * | 2001-03-21 | 2001-12-26 | 李洪华 | Decorative board |
| CN2591124Y (en) * | 2002-11-21 | 2003-12-10 | 庄继昌 | Health environment protection composite stone plate body |
| CN1741860A (en) * | 2002-12-13 | 2006-03-01 | G-P石膏公司 | Gypsum panel having UV-cured moisture resistant coating and method for making the same |
| CN2642910Y (en) * | 2003-09-28 | 2004-09-22 | 付志洪 | Composite decorative board made from fiberglass and magnesian compound and plant fiber |
| CN101564718A (en) * | 2008-04-25 | 2009-10-28 | 中国海洋石油总公司 | Painting process for external pasted board layer of gypsum plate |
| CN201889924U (en) * | 2010-04-08 | 2011-07-06 | 支亮 | Composite board with low water absorption |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787636A (en) * | 2012-12-12 | 2014-05-14 | 吴松焕 | Nonflammable light-weight panel by advancing the water-proofing and wear resistance and producing method thereof |
| CN103787636B (en) * | 2012-12-12 | 2016-02-24 | 吴松焕 | Tough water-fast, wear-resisting, flame-retarded light plate and manufacture method thereof |
| US11020940B2 (en) * | 2017-01-12 | 2021-06-01 | Euro Trade Flooring, S.L. | Plate for covering horizontal and vertical surfaces |
| CN109320190A (en) * | 2018-11-28 | 2019-02-12 | 深圳市普源新型材料有限公司 | One kind is moisture-proof to prevent returning halogen glass magnesium board and preparation method thereof |
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Application publication date: 20101110 |