CN101947804B - Plant straw board and manufacturing method thereof - Google Patents
Plant straw board and manufacturing method thereof Download PDFInfo
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- CN101947804B CN101947804B CN2010102724758A CN201010272475A CN101947804B CN 101947804 B CN101947804 B CN 101947804B CN 2010102724758 A CN2010102724758 A CN 2010102724758A CN 201010272475 A CN201010272475 A CN 201010272475A CN 101947804 B CN101947804 B CN 101947804B
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- powder
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- magnesium chloride
- straw
- sheet material
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- 239000010902 straw Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 24
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 10
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 10
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 8
- 239000004566 building material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- 244000020551 Helianthus annuus Species 0.000 description 1
- 235000003222 Helianthus annuus Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 244000000231 Sesamum indicum Species 0.000 description 1
- 235000003434 Sesamum indicum Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a plant straw board and a manufacturing method thereof, which consists of plant straws, magnesium oxide, magnesium chloride solution and a curing accelerator, wherein the curing accelerator consists of fly ash, iron oxide yellow, active silicon dioxide and ferrous sulfate. The manufacturing method comprises the following steps: drying crop straws, removing impurities and crushing into powder; mixing and stirring magnesium oxide powder and magnesium chloride solution uniformly, adding the mixture into the powder, stirring uniformly, adding a curing accelerator, stirring, putting the mixture into a die, and pressing into a plate. Can save trees and protect the environment. It has the characteristics of light weight, sound insulation, heat insulation, moisture resistance, wear resistance and the like, and is durable in use and wide in application.
Description
(1), technical field:
The present invention relates to a kind of sheet material, be specifically related to a kind of straw sheet material; The invention still further relates to the preparation method of this straw sheet material.
(2), background technology:
Along with Chinese society doctrine market economy system is built; The development of building materials market turns to the raising of quality by the expansion of quantity, and filling hybrid process to string becomes building and become one of field of enlivening the most in the industry of present building materials market with structural shapes.Reclaiming plant straw, timber leftover bits and pieces etc. is the utilization again to resource, can reduce consumption of wood effectively on the one hand, conserves forests; Wood-fibred and string source is sufficient on the other hand, and light weight is inexpensive, and is little to equipment attrition, the manufactured goods dimensionally stable, and electrical insulating property is good, can be processed into nontoxic stalk plate.But stalk plate in the production process is because the adhesion problem between admixture powder of straw and the Binder Materials; Its surperficial stalk can influence the moulding and the outward appearance of whole sheet material; The adding of stalk has changed the inner pore structure of goods in addition, has technical problems such as many bubbles, distortion, efflorescence.
(3), summary of the invention:
Technical problem to be solved by this invention provided a kind of light weight, heat insulation, sound insulation, wear-resisting, intensity is high, has the low straw sheet material of outstanding water proofing property and shrinkage factor simultaneously.
Another problem to be solved by this invention is to provide the preparation method of above-mentioned straw sheet material.
For solving the problems of the technologies described above, straw sheet material of the present invention, process by following raw materials according by weight:
Plant straw powder 57%, weight content >=85% magnesium oxide powder 16%, Baume concentration are magnesium chloride solution 25%, the maturing promotor 2% of 18～30 degree;
Wherein, described maturing promotor is made up of 92% flyash, 3% iron oxide yellow, 4% active silica, 1% ferrous sulfate by weight.
The preparation method of straw sheet material of the present invention comprises the steps:
(1) make its water content less than 20% agricultural crop straw oven dry earlier; Remove impurity, make its silt content less than 5%; Be ground into powder again, get plant straw powder;
(2) by weight, the flyash with 92%, 3% iron oxide yellow, 3% active silica and 1% ferrous sulfate mix and are crushed to 800 orders, maturing promotor;
(3) by 100: 95 weight ratio, magnesium chloride is put into container add clear water and dissolve, soak more than 30 hours, processing Baume concentration is 18～30 degree magnesium chloride solutions;
(4) by weight; After the magnesium oxide powder of the weight content with 16% >=85% and 25% Baume concentration are the magnesium chloride solution mixing and stirring of 18～30 degree; Join in 57% the plant straw powder, stir, add 2% maturing promotor again and stir;
(5) said mixture is put into mould and be pressed into sheet material.
The present invention is that the maturing promotor adding that utilization is made up of flyash, iron oxide yellow, active silica, ferrous sulfate is in the main material with the discarded in a large number plant straw powder in rural area; Produce straw sheet material; Make a silk purse out of a sow's ear; Prevent environmental pollution, practiced thrift the forest reserves, had good economic benefit and ecological environment benefit.Low production cost, aboundresources, the present invention since with string as the plate base, have light weight, sound insulation, heat-proof quality; Simultaneously, the adding of maturing promotor makes sheet material have protection against the tide, anti-wear performance.
Preparation method of the present invention is simple, and is easy to operate.The timber intensity of processing is high, durable in use, of many uses.
(4), the specific embodiment:
The raw material of straw sheet material of the present invention is:
Plant straw powder 570kg, weight content >=85% magnesium oxide powder 160kg, the magnesium chloride solution 250kg of weight concentration >=45%, maturing promotor 20kg;
Wherein, maturing promotor consists of flyash 18.4kg, iron oxide yellow 0.6kg, active silica 0.8kg, ferrous sulfate 0.2kg.
Preparation method at straw sheet material of the present invention comprises the steps:
(1) make its water content less than 20% the oven dry earlier of 620kg straw; Remove impurity, make its silt content less than 5%; Be ground into powder again, get plant straw powder 570kg;
(2) 184kg flyash, 6kg iron oxide yellow, 8kg active silica and 2kg ferrous sulfate are mixed and pulverize, get 800 order maturing promotor 180kg;
(3) by 100: 95 weight ratio, magnesium chloride is put into container add clear water and dissolve, soak more than 30 hours, processing Baume concentration is 18～30 degree magnesium chloride solutions;
(4) be to join in the said plant straw powder after the magnesium chloride solution 250kg mixing and stirring of 18～30 degree with weight content >=85% magnesium oxide powder 160kg and Baume concentration, stir, add the 20kg maturing promotor again and stir;
(5) said mixture is put into mould and suppress, can long 2.4m, 76 of the sheet materials of wide 1.2m, high 0.009m.
The present invention can select the straw that do not go mouldy, straw, rice husk, cornstalk, jowar stalk, sesame stalk, sunflower stalk, rape stalk, sawdust etc. for use, and oven dry earlier makes its water content less than 20%; Remove impurity, its silt content is less than 5%; Be ground into powder again, can be for use.Primary raw material is a string in the base-material, can play the reinforcement humidification, and the straw board hardness of processing is high, and is of many uses, has overcome the shortcoming that prior art exists, and sclerosis under the air conditions can not only be arranged in dry environment, also can be used for wet environment.
Maturing promotor is made up of 92% flyash by weight, 3% iron oxide yellow, 4% active silica, 1% ferrous sulfate.Contain a spot of calcium in the flyash, it is very favourable to the formation of gel, can gain in strength and durability; Iron oxide yellow has the raising tinctorial property, and active silica has the settleability of preventing, mainly as flocculant, flocculating effect is good for ferrous sulfate.Fineness 800 orders of composition; Relative density is between 3.2-4.7, and adding can form the strong crystallization gelatine compound of water-resistance effectively, and changes the knot contact of oxychloride magnesium double salt; Strengthen interting and adhesion between crystal, thereby improved the intensity and tax refusal property of material.
Magnesium chloride solution among the present invention is magnesium chloride to be put into bulk container add clear water and dissolve, and soaks more than 30 hours, measures with Baume hydrometer, can use when Baume concentration reaches 18～30 degree.Can overcome when air humidity is big, the magnesium oxychloride material product surface absorbs airborne moisture and produces surface moisture, and then overworks water column, even the globule occurs and join together and form the trickling phenomenon; Can overcome when the air humidity step-down simultaneously, product surface moisture evaporates accordingly, stays full of stains or spots white phenomenon.Effectively improve the quality of manufactured goods, the intensified waterproof moisture-proof characteristic strengthens and decorates and result of use.
The sheet material that the present invention produces not only all meets or exceeds pure wooden boards on various performance indications such as elastic modelling quantity, MOR, internal bond strength, surface bonding strength, thickness swelling rate, and it does not contain formaldehyde, and turns waste into wealth; Substitute timber; Can reduce deforestation, protect ecological environment, increase social benefit; Meet the requirement of building a conservation-minded society and developing a circular economy, have characteristics such as economy, environmental protection, durable, heat insulation, sound insulation.
Claims (2)
1. straw sheet material, by weight, process by following raw materials according:
Plant straw powder 57%, weight content >=85% magnesium oxide powder 16%, Baume concentration are magnesium chloride solution 25%, the maturing promotor 2% of 18～30 degree;
Wherein, described maturing promotor is made up of 92% flyash, 3% iron oxide yellow, 4% active silica, 1% ferrous sulfate by weight.
2. the preparation method of a straw sheet material comprises the steps:
(1) make its water content less than 20% agricultural crop straw oven dry earlier; Remove impurity, make its silt content less than 5%; Be ground into powder again, get plant straw powder;
(2) by weight, the flyash with 92%, 3% iron oxide yellow, 3% active silica and 1% ferrous sulfate mix and are crushed to 800 orders, maturing promotor;
(3) by 100: 95 weight ratio, magnesium chloride is put into container add clear water and dissolve, soak more than 30 hours, processing Baume concentration is 18～30 degree magnesium chloride solutions;
(4) by weight; After the magnesium oxide powder of the weight content with 16% >=85% and 25% Baume concentration are the magnesium chloride solution mixing and stirring of 18～30 degree; Join in 57% the plant straw powder, stir, add 2% maturing promotor again and stir;
(5) said mixture is put into mould and be pressed into sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102724758A CN101947804B (en) | 2010-09-01 | 2010-09-01 | Plant straw board and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102724758A CN101947804B (en) | 2010-09-01 | 2010-09-01 | Plant straw board and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947804A CN101947804A (en) | 2011-01-19 |
| CN101947804B true CN101947804B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102724758A Active CN101947804B (en) | 2010-09-01 | 2010-09-01 | Plant straw board and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN101947804B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501290B (en) * | 2011-09-29 | 2014-05-28 | 项林 | Method for preparing environmental-friendly tile from plants |
| CN102503335B (en) * | 2011-11-01 | 2013-08-07 | 湖北格林森新型建材科技有限公司 | Fibrous gypsum ecological wood material and preparation method thereof |
| CN104556952A (en) * | 2013-10-29 | 2015-04-29 | 四川洪福地科技有限公司 | Novel wall material based on waste stillage residues |
| CN104240693A (en) * | 2014-08-01 | 2014-12-24 | 德清京浙建材有限公司 | Wood fiber acoustic board and manufacturing method thereof |
| CN110668780A (en) * | 2019-11-14 | 2020-01-10 | 东莞市建佳再生资源回收有限公司 | Cement formwork and preparation method thereof |
| CN113998980A (en) * | 2021-11-22 | 2022-02-01 | 四川点草成金科技有限责任公司 | Straw building material formula and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH472275A (en) * | 1965-06-25 | 1969-05-15 | Israel State | Process for the bromination of lignocellulosic material |
| GB2301122A (en) * | 1995-05-24 | 1996-11-27 | Cyril Glass | Flame retardant compositions |
| CN2460276Y (en) * | 2000-09-21 | 2001-11-21 | 段士元 | Plywood made by straw |
| CN1128186C (en) * | 2000-09-22 | 2003-11-19 | 朱春生 | Formaldehydeless fire-resisting water-proofing decorative board and its preparation method |
| CN1203024C (en) * | 2002-06-13 | 2005-05-25 | 赵加容 | Technology for producing inorganic composite decorative board |
| CN1388084A (en) * | 2002-07-03 | 2003-01-01 | 赵加容 | Production technique of reinforced inorganic composite decorating board |
| CN2599110Y (en) * | 2002-12-23 | 2004-01-14 | 余毅 | Light foamed sandwish wallboard |
| CN100384772C (en) * | 2003-05-17 | 2008-04-30 | 揭建刚 | Light internal and externall wallboards |
| CN101381211A (en) * | 2008-10-16 | 2009-03-11 | 中国科学院长春应用化学研究所 | Method for preparing building formwork from various solid wastes |
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| CN101947804A (en) | 2011-01-19 |
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Plant straw board and manufacturing method thereof Effective date of registration: 20130716 Granted publication date: 20120523 Pledgee: Tongcheng Xing Tong small loan Co., Ltd. Pledgor: Anhui Changlin Energy-saving Material Technology Co., Ltd. Registration number: 2013990000460 |
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