CN102531492B - Cement-based wood fiber artificial board and manufacturing method thereof - Google Patents
Cement-based wood fiber artificial board and manufacturing method thereof Download PDFInfo
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- CN102531492B CN102531492B CN201110453331.7A CN201110453331A CN102531492B CN 102531492 B CN102531492 B CN 102531492B CN 201110453331 A CN201110453331 A CN 201110453331A CN 102531492 B CN102531492 B CN 102531492B
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- wood
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a cement-based wood fiber artificial board and a manufacturing method thereof. According to the invention, the cement-based wood fiber artificial board is obtained by taking cement as a gel material and taking wood fibers as an organic reinforcing material, doping a certain amount of chemical addition agent, and carrying out steps of batching, agitating, pressurizing, curing, de-molding and maintaining. The artificial board provided by the invention is a novel material with water resistance, anti-oxidation, corrosion resistance and flame retardant property. The wood fiber raw material is selected from leftovers in the production of solid wood furniture and is mixed with cement slurry after being classified, machined and treated, so that the cost of the cement-based wood fiber artificial board is low; and bonding glue is not used so that the pollution to the environment is reduced while timber resources are protected and saved. The cement-based wood fiber artificial board and the manufacturing method thereof, provided by the invention, are applicable to lightweight wall materials for buildings, indoor and outdoor decorative sheet materials, and furniture decorative sheet materials.
Description
Technical field
The present invention relates to composite organic-inorganic material, resource recycling technical field, especially relate to a kind of cement based wood fibre wood-based plate and preparation method thereof.
Background technology
Timber and iron and steel, cement, plastics are four universally acknowledged large starting material.Although timber is wherein unique reproducible biological substance material, the minimizing gradually of the worldwide forest reserves has been undisputable fact.At present; for protecting forest resources; domestic limit is cut down the continuation of policy and is implemented; world Ge Chancai state also again and again puts into effect timber for the national forest reserves of protection and exports the policy of keeping under strict control simultaneously; cause importation of timber (especially log) quantity sharply to reduce, the situation of this sternness will directly affect large quantities of downstream industries.Therefore, rationally utilize and save timber and seek wood substitutes, the multi-functional composite wooden material of research and development environmental protection is the inexorable trend of future development.
Cement, as a kind of important gelling material, is widely used in the engineerings such as civil construction, water conservancy, national defence.But cement production process energy consumption is large, seriously polluted, resource is underutilized.In recent years, the research and development of being prepared by other materials and cementitious composite to new function matrix material becomes focus gradually.
Wood materials light weight, has elasticity, and heat-proof quality is good, arbitrarily sawing processing, but it is inflammable, be one of source of initiation fire, in not acidproof corruption and present many wooden boards, added a large amount of sizing materials, these compositions cause volatilizing benzene and the pollution of formaldehyde to environment; Cement material is firm, fire prevention, protection against the tide, mildew-resistant, anti-ant, but its poor plasticity, fine degree is not high.Timber cement respectively has relative merits, if timber and cementitious composite not only can have been overcome to the deficiency of self material but also complementary and saving resource mutually.
The material of existing wood fibre and cementitious composite, the wood wool that wood fibre all adopts log processing to make, does not really save wooden resource, and exists processing process complicated, the shortcoming that Young's modulus is low.
Summary of the invention
The present invention is intended to solve above-mentioned the deficiencies in the prior art part, realize the recycling of timber resources, alleviate the present situation in short supply of cement and timber resources, cement based wood fibre wood-based plate of provide a kind of and there is good water resistance, anti-flaming function is good, structure is firm, Young's modulus is higher, is difficult for oxidation corrosion, processing process is relatively simple and preparation method thereof.
Meanwhile, the present invention also aims to provide a kind of recycling approach of solid wood furniture productional surplus thing.
The object of the invention is to be achieved through the following technical solutions.
A cement based wood fibre wood-based plate is to be made by the raw material of following ratio of weight and number:
Tackifier are ore pulp micro foam agent, zinc dialkyl dithiophosphate, sulphur phosphoric acid nitrogen containing derivative or thiophosphoric acid amine salt, and wood powder is to obtain after the processing of solid wood furniture productional surplus thing, processing, and the fineness degree of wood powder is 30-80 order.
The processing and treating method of described wood powder, comprises the following steps successively:
A: sawdust, the wood chip during solid wood furniture is produced and the tankage of having pulverized are crossed 30-80 object sieve;
B: the wood powder having sieved is processed by alkaline purification method;
C: the wood powder after processing in step b is put into baking oven constant temperature and process;
D: the wood powder of processing through constant temperature in step c is sprayed after washing with clear water, put into loft drier drying treatment, standby.
In the processing and treating method of described wood powder, described alkaline purification method is at normal temperatures wood powder to be put into NaOH or Ca (OH) 2 basic solutions that concentration is 0.5%-5% to soak 4h;
Described constant temperature is processed, and refers to that in baking oven, 80 ℃ of warm air constant temperature are processed 8h;
Described drying treatment, refers in loft drier 105 ℃ of design temperatures, makes its water ratio lower than 3%.
A preparation method for cement based wood fibre wood-based plate, comprises the following steps successively:
1), processing and treating method according to claim 6 carries out pre-treatment to wood powder;
2), by step 1) wood powder, ordinary Portland cement, water-ground limestone, silicon ash, anti-crack and anti-leakage of concrete agent, the tackifier processed prepare burden according to each component parts by weight numerical value, and the water that under agitation adds 150-200 part, after mixing, obtain paste compound;
3), paste compound is joined in mould, floating upper surface, sends into chilling press after matched moulds, suppresses 0.5-72 hour with sizing under 2-10MPa pressure, standing in mould after pressed sizing, and when envrionment temperature is during at 10 ℃-40 ℃, time of repose is 5-10h;
4), again the plate of moulding is placed to ventilation after the demoulding and naturally dries in the shade, continue maintenance 2-5 days, finally slab is carried out to corner processing, obtain the smooth cement based wood fibre wood-based plate of surfacing.
Cement based wood fibre wood-based plate of the present invention, the specification of making rear cement based wood fibre wood-based plate is: 1220mm * 2440mm * 10-24mm, to meet different client's needs.
Compared with prior art, beneficial effect of the present invention is: 1, the present invention adopts solid wood furniture productional surplus thing to obtain wood fibre component after processing, screening, processing, do not use log, the approach of wooden resource recycling is also provided when economizing on resources; 2, the present invention does not use assembly glue, nontoxic, environmental protection, has reduced environmental pollution; 3, it is relatively simple that the present invention processes preparation process, do not need large-scale expensive device, saved cost; 4, the present invention has good water resistance, anti-flaming function is good, structure is firm, Young's modulus is higher, be difficult for the advantages such as oxidation corrosion.Young's modulus of the present invention is 5.0-7.0GPa, and the Young's modulus of general cement Wood fiber composite material is 1.3-4.0GPa; Thermal conductivity is: 0.14W/ (mK), density is: 1.24g/cm3, its over-all properties is more excellent.
Accompanying drawing explanation
Fig. 1 is the preparation flow figure of cement based wood fibre wood-based plate.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
In the present embodiment, choose and pass through 175 parts of pretreated 30 object wood powders, 150 parts of the cement of 425#, 50 parts of water-ground limestones, 5 parts of silicon ashes, 2.5 parts of anti-crack and anti-leakage of concrete agent, 3.5 parts of tackifier zinc dialkyl dithiophosphates are put into single horizontal axis mortar mixer, with 150rpm rotating speed mixing 5min, and in stirring, add the water of 150 parts, stir and form the good slurry of workability.
First in mould, coat releasing agent, then paste compound is joined in mould, floating upper surface, sends into chilling press after matched moulds, suppresses 72h with sizing under 2MPa pressure, standing in mould after pressed sizing, when envrionment temperature is during at 10 ℃-40 ℃, and standing 5h; After the demoulding, again the plate of moulding is placed to ventilation and naturally dry in the shade, continue maintenance 2-5 days; Finally, to slab corner polished dressing, obtain the smooth cement based wood fibre wood-based plate of surfacing.
Embodiment 2
Choose and pass through 160 parts of pretreated 50 object wood powders, 165 parts of the cement of 425#, 60 parts of water-ground limestones, 6 parts of silicon ashes, 3.5 parts of anti-crack and anti-leakage of concrete agent, 7.5 parts of tackifier zinc dialkyl dithiophosphates are put into single horizontal axis mortar mixer, with 150rpm rotating speed mixing 8min, and in stirring, add the water of 165 parts, stir and form the good slurry of workability.
First in mould, coat releasing agent, then paste compound is joined in mould, floating upper surface, sends into chilling press after matched moulds, suppresses 24h with sizing under 5MPa pressure, standing in mould after pressed sizing, when envrionment temperature is during at 10 ℃-40 ℃, and standing 5h; After the demoulding, again the plate of moulding is placed to ventilation and naturally dry in the shade, continue maintenance 2-5 days; Finally, to slab corner polished dressing, obtain the smooth cement based wood fibre wood-based plate of surfacing.
Embodiment 3
Choose and pass through 190 parts of pretreated 80 object wood powders, 180 parts of the cement of 425#, 70 parts of water-ground limestones, 7 parts of silicon ashes, 5.5 parts of anti-crack and anti-leakage of concrete agent, 13.5 parts of tackifier zinc dialkyl dithiophosphates are put into single horizontal axis mortar mixer, with 150rpm rotating speed mixing 10min, and in stirring, add the water of 200 parts, stir and form the good slurry of workability.
First in mould, coat releasing agent, then paste compound is joined in mould to floating upper surface, after matched moulds, send into chilling press, under 10MPa pressure, suppress 45min with sizing, standing in mould after pressed sizing, when envrionment temperature is during at 10 ℃-40 ℃, standing 10h; After the demoulding, again the plate of moulding is placed to ventilation and naturally dry in the shade, continue maintenance 2-5 days; Finally, to slab corner polished dressing, obtain the smooth cement based wood fibre wood-based plate of surfacing.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (8)
1. a cement based wood fibre wood-based plate, is characterized in that, is to be made by the raw material of following ratio of weight and number:
2. cement based wood fibre wood-based plate according to claim 1, is characterized in that: tackifier are ore pulp micro foam agent, zinc dialkyl dithiophosphate, sulphur phosphoric acid nitrogen containing derivative or thiophosphoric acid amine salt.
3. cement based wood fibre wood-based plate according to claim 1, is characterized in that: the fineness degree of described wood powder is 30-80 order.
4. cement based wood fibre wood-based plate according to claim 1, is characterized in that: described wood powder is to obtain after the processing of solid wood furniture productional surplus thing, processing.
5. cement based wood fibre wood-based plate according to claim 4, is characterized in that: the working method of described wood powder, comprises the following steps successively:
A: sawdust, the wood chip during solid wood furniture is produced and the tankage of having pulverized are crossed 30-80 object sieve;
B: the wood powder having sieved is processed by alkaline purification method;
C: the wood powder after processing in step b is put into baking oven constant temperature and process;
D: the wood powder of processing through constant temperature in step c is sprayed after washing with clear water, put into loft drier drying treatment, standby.
6. cement based wood fibre wood-based plate according to claim 5, is characterized in that: described alkaline purification method is at normal temperatures wood powder to be put into NaOH or the Ca (0H) that concentration is 0.5%-5%
2in basic solution, soak 4h;
Described constant temperature is processed, and refers to that in baking oven, 80 ℃ of warm air constant temperature are processed 8h;
Described drying treatment, refers in loft drier 105 ℃ of design temperatures, makes its water ratio lower than 3%.
7. a preparation method for cement based wood fibre wood-based plate, is characterized in that, comprises the following steps successively:
1), processing and treating method according to claim 6 carries out pre-treatment to wood powder;
2), by step 1) wood powder, ordinary Portland cement, water-ground limestone, silicon ash, anti-crack and anti-leakage of concrete agent, the tackifier processed prepare burden according to each component parts by weight numerical value, and the water that under agitation adds 150-200 part, after mixing, obtain paste compound;
3), paste compound is joined in mould, floating upper surface, sends into chilling press after matched moulds, suppresses 0.5-72 hour with sizing under 2-10MPa pressure, standing in mould after pressed sizing, and when envrionment temperature is during at 10 ℃-40 ℃, time of repose is 5-10h;
4), again the plate of moulding is placed to ventilation after the demoulding and naturally dries in the shade, continue maintenance 2-5 days, finally slab is carried out to corner processing, obtain the smooth cement based wood fibre wood-based plate of surfacing.
8. cement based wood fibre wood-based plate according to claim 1, is characterized in that: the specification of making rear cement based wood fibre wood-based plate is: 1220mm * 2440mm * 10-24mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110453331.7A CN102531492B (en) | 2011-12-30 | 2011-12-30 | Cement-based wood fiber artificial board and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110453331.7A CN102531492B (en) | 2011-12-30 | 2011-12-30 | Cement-based wood fiber artificial board and manufacturing method thereof |
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| CN102531492A CN102531492A (en) | 2012-07-04 |
| CN102531492B true CN102531492B (en) | 2014-03-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103419262B (en) * | 2013-08-20 | 2016-08-10 | 三门恒泰工艺品有限公司 | A kind of Waste timber regeneration method |
| CN104844128B (en) * | 2015-01-30 | 2018-03-23 | 董彬 | The preparation method of the artificial partition wall of portal structure string, partition panel and door panel |
| CN105776969A (en) * | 2016-02-17 | 2016-07-20 | 柳州市乾阳机电设备有限公司 | Manufacturing method of mulberry twig cement mixed artificial board |
| CN106042138B (en) * | 2016-05-30 | 2018-09-25 | 宁波大世界集团有限公司 | A kind of vacuum freeze drying moulding process of Wood Fiber Composites product |
| CN107056113B (en) * | 2017-05-27 | 2019-04-12 | 东南大学 | A method of sawdust is pre-processed using carbon dioxide |
| CN112708281A (en) * | 2021-01-11 | 2021-04-27 | 郭卫科 | Novel high-strength furniture board and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US700141A (en) * | 1899-01-06 | 1902-05-13 | Robert Mitchell Machinery Company | Button-fly-scalloping machine. |
| US1996070A (en) * | 1927-08-06 | 1935-04-02 | Beck Koller & Company Inc | Condensation product and process for preparing the same |
| JP2006062883A (en) * | 2004-08-24 | 2006-03-09 | Nichiha Corp | Wooden cement board and its manufacturing method |
| CN100537469C (en) * | 2006-09-30 | 2009-09-09 | 北新集团建材股份有限公司 | Fibre-reinforced cement compound external wall panel and method of producing the same |
| JP5006425B2 (en) * | 2010-03-31 | 2012-08-22 | ニチハ株式会社 | Wood cement board and manufacturing method thereof |
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