CN1350912A - Method for modifying wood with nano material - Google Patents
Method for modifying wood with nano material Download PDFInfo
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- CN1350912A CN1350912A CN 00131599 CN00131599A CN1350912A CN 1350912 A CN1350912 A CN 1350912A CN 00131599 CN00131599 CN 00131599 CN 00131599 A CN00131599 A CN 00131599A CN 1350912 A CN1350912 A CN 1350912A
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- nano material
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Abstract
A process for modifying wood with nano material including such steps as preparing the impregnating liquid by dispersing nano material in the pre-polymerizing liquid of high-molecular polymer before cross-linking, drying raw wood, immersing the wood in the impregnating liquid while vacuumizing for a certain time, and drying at 80-115 deg.C until its water content is about 12%. The modified wood features superstrength, superhardness, and high impact-resistance, antiwear, anticorrosion, fire-retarding, water-proof and anti-worm-eating performance.
Description
The present invention relates to a kind of modification that utilizes nano material to timber.Particularly relate to a kind of to low-grade timber through physical chemistry handle on physical and mechanical property and similar in appearance or be better than the processing and the manufacture method thereof of precious timber.
At present, the timber requirement is very big both at home and abroad, precious timber is day by day rare, but method for modifying wood lags behind, as CN1037105A " amber wood and manufacture method thereof ", CN109396A " imitation red-wood and manufacture method thereof ", described maceration extract is in the production use, because of cure shrinkage is serious, cause timber crack and distortion.Impregnating depth is limited simultaneously, and wood radial can only reach about 100mm, and the tangential degree of depth is bordering on 0, it is bigger to finish sectional area, the dipping that length is long (for example doorframe material etc.), this maceration extract solidifies contract with dry rate up to 8% or higher, makes timber gross distortion, cracking, can't use.
The purpose of this invention is to provide a kind of method of modifying that utilizes nano material to timber.Because the conduit of timber, cells such as pit and fibre structure all are in micron order, so utilize water-soluble resin pre-polymerization liquid as carrier, nano material is distributed in the various piece of lumber fibre structure by dipping, the specific area that nano material is huge, hardness and intensity, as the sandstone in the cement, make the physical and mechanical property of timber obtain great change behind the resin solidification, resin solidification shrinks and is also improved effectively, this improved wood can satisfy any index request that timber uses, have superpower, superhard, shock resistance, wear-resisting, anticorrosion, fire-retardant, water-fast, the performance of pest-resistant bacterium, color is selected arbitrarily.
Purpose that the present invention will reach and effect are finished by following design:
The present invention is scattered in nano material in the crosslinked preceding high molecular polymer pre-polymerization liquid, as maceration extract.Timber does not need fragmentation, directly uses conventional sheet material and square bar by machinings such as the log jagsaw cut.
The preparation of nano material maceration extract:
Lauxite pre-polymerization liquid: nm high molecular polymer=100: 0.1-0.5;
Lauxite pre-polymerization liquid: nmSiO
2=100: 0.05-0.3;
Lauxite pre-polymerization liquid: nmAl
2O
3=100: 0.05-0.3;
Phenolic resins: nmSiO
2=100: 0.05-0.2.
Present technique nano material maceration extract can add the dyestuff of 0.1-5%, makes timber obtain various colors.
The present invention utilizes nano material that the modification of timber is finished by the following step:
1, the preparation of stock:
Raw material can adopt low-grade speed to give birth to sheet material and the square bar of diffuse porous wood through machining.
2, chemical impregnation:
With above-mentioned timber stock drying, moisture content is controlled at about 12%, puts into the vacuum pressed jar after the drying, under the vacuum state of-0.07-0.093Mpa, the air in the timber is taken out to the greatest extent in the time through 10-50min.
Utilize a jar interior vacuum that the nano material maceration extract is sucked,, must impose the pressure of 1.2-4.0Mpa, keep 15-120min for timber is soaked into fully.After reaching Preset Time, back pressure to 0 is utilized raffinate in the air pump drain tank, and impreg goes out jar, and washing airing gas is done, and enters hothouse and is dried to moisture content about in the of 12% at 80-115 ℃, reduces to the room temperature warehouse-in.
Utilize the modification of nano material to timber, the physical dimension that its effect is an improved wood is very stable, and outward appearance texture and fibre structure are not destroyed, and keeps natural.Physical and mechanical property obtains huge raising.Contain the requirement that timber production is used at intensity, hardness, anti-mechanical shock, anti-folding, anticorrosion, fire-retardant, water-fast, pest-resistant bacterium, color, texture aspects, reached perfect condition.Technology is simple, with low cost, and its intensity and appearance color can be controlled, and has the broad applicability the same with natural timber, and is unrestricted for selecting for use of the former material of modification, and especially low-grade fast growing wood is more suitable.Effectively avoid hydrolysis, oxidation, pyrolysis, light wave degraded, the bio-enzyme degradation of wood-cellulose strand, the woodwork of modification can be used in the open or under the mal-condition, improved the long durability that woodwork uses widely, creep value greatly reduces.Because the densification of present technique goods, thus have splendid polishing performance, water-fast, can be without paint naked usefulness.
The most preferred embodiment of modifying wood with nano material method of the present invention:
One,
Sheet material:
1m
3, seeds populus simonii, moisture content 12%, length 1000mm, thick 20mm
Maceration extract:
Lauxite pre-polymerization liquid: nmSiO
2=100: 0.2 quantity 1.2T
Dyestuff:
Directly freeze Huang: Lauxite pre-polymerization liquid=0.37: 100
Vacuum:
-0.084Mpa vacuum time 35min
Hydraulic pressure:
3.5Mpa pressing time 40min
Dry:
115 ℃ of curing 172h manufactured goods drying time are imitative yellow sandal.Sheet material:
1m
3, seeds fiber crops willow, moisture content 11%, length 1000mm, thick 30mm maceration extract:
Lauxite pre-polymerization liquid: nmAl
2O
3=100: 0.1 quantity 1.2T dyestuff:
Reactive black K-B: Lauxite pre-polymerization liquid=0.2: 100 vacuum:
-0.084Mpa vacuum time 40min hydraulic pressure:
4Mpa 50min pressing time drying:
110 ℃ of curing 180h manufactured goods drying time are simulating ebony.
Claims (2)
1, a kind of method of modifying wood with nano material, (weight ratio):
Lauxite pre-polymerization liquid: nm high molecular polymer=100: 0.1-0.5;
Lauxite pre-polymerization liquid: nmSiO
2=100: 0.05-0.3;
Lauxite pre-polymerization liquid: nmAl
2O
3=100: 0.05-0.3;
Phenolic resins: nmSiO
2=100: 0.05-0.2.
2, the method for modifying wood with nano material according to claim 1 is characterized in that: the dyestuff that adds the 0.1-5% of this liquid weight in above-mentioned nano material maceration extract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131599 CN1350912A (en) | 2000-11-01 | 2000-11-01 | Method for modifying wood with nano material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131599 CN1350912A (en) | 2000-11-01 | 2000-11-01 | Method for modifying wood with nano material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1350912A true CN1350912A (en) | 2002-05-29 |
Family
ID=4594755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00131599 Pending CN1350912A (en) | 2000-11-01 | 2000-11-01 | Method for modifying wood with nano material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1350912A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101277797B (en) * | 2005-10-04 | 2012-08-29 | 巴斯夫欧洲公司 | Lignocellulosic material which is low in formaldehyde and method for the production thereof |
| CN102699965A (en) * | 2012-06-15 | 2012-10-03 | 辽宁美联复合材料有限公司 | Method for preparing nanometer modified wood |
| CN103029178A (en) * | 2012-12-17 | 2013-04-10 | 郑州兴旺木业有限公司 | Method for manufacturing bamboo strengthened poplar laminated veneer lumber |
| CN101875207B (en) * | 2009-04-28 | 2014-07-23 | 五邑大学 | Processing method of low-quality rapidly-growing log with in situ densification and bacteriostat degerming functions |
| CN106863507A (en) * | 2016-12-30 | 2017-06-20 | 亚振家具股份有限公司 | A kind of method that timber hydrophobicity and stability are improved based on nano titanium oxide |
| CN107322741A (en) * | 2017-08-10 | 2017-11-07 | 马鞍山市谷庆门业有限公司 | A kind of China fir boarded door processing technology |
| CN108789705A (en) * | 2018-07-11 | 2018-11-13 | 广州精点高分子材料制品有限公司 | A kind of monomer enters the application method of type ceramics wood |
| CN115256569A (en) * | 2022-08-16 | 2022-11-01 | 南京林业大学 | A kind of wear-resistant fire-resistant laminated material and preparation method thereof |
-
2000
- 2000-11-01 CN CN 00131599 patent/CN1350912A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101277797B (en) * | 2005-10-04 | 2012-08-29 | 巴斯夫欧洲公司 | Lignocellulosic material which is low in formaldehyde and method for the production thereof |
| CN101875207B (en) * | 2009-04-28 | 2014-07-23 | 五邑大学 | Processing method of low-quality rapidly-growing log with in situ densification and bacteriostat degerming functions |
| CN102699965A (en) * | 2012-06-15 | 2012-10-03 | 辽宁美联复合材料有限公司 | Method for preparing nanometer modified wood |
| CN103029178A (en) * | 2012-12-17 | 2013-04-10 | 郑州兴旺木业有限公司 | Method for manufacturing bamboo strengthened poplar laminated veneer lumber |
| CN103029178B (en) * | 2012-12-17 | 2015-04-01 | 郑州兴旺木业有限公司 | Method for manufacturing bamboo strengthened poplar laminated veneer lumber |
| CN106863507A (en) * | 2016-12-30 | 2017-06-20 | 亚振家具股份有限公司 | A kind of method that timber hydrophobicity and stability are improved based on nano titanium oxide |
| CN107322741A (en) * | 2017-08-10 | 2017-11-07 | 马鞍山市谷庆门业有限公司 | A kind of China fir boarded door processing technology |
| CN108789705A (en) * | 2018-07-11 | 2018-11-13 | 广州精点高分子材料制品有限公司 | A kind of monomer enters the application method of type ceramics wood |
| CN108789705B (en) * | 2018-07-11 | 2020-05-08 | 广州精点高分子材料制品有限公司 | Use method of single-body entering type ceramic wood |
| CN115256569A (en) * | 2022-08-16 | 2022-11-01 | 南京林业大学 | A kind of wear-resistant fire-resistant laminated material and preparation method thereof |
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