CN106625929A - Poplar strengthening method - Google Patents
Poplar strengthening method Download PDFInfo
- Publication number
- CN106625929A CN106625929A CN201611106880.6A CN201611106880A CN106625929A CN 106625929 A CN106625929 A CN 106625929A CN 201611106880 A CN201611106880 A CN 201611106880A CN 106625929 A CN106625929 A CN 106625929A
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- Prior art keywords
- poplar
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- thickness
- dried
- process time
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to the technical field of wood processing, in particular to a poplar strengthening method. The polar strengthening method comprises the following processing steps that poplar is soaked in acidizing fluid with the pH value of 2.4-2.8 and is acidized, single rows of polar are horizontally suspended in hot air and subjected to surface drying, the polar is soaked in a methyl acrylate ethanol solution with the concentration of 10-12 ml/L and subjected to infiltration strengthening, and the polar is put in a nitrogen protection drying chamber and dried. The polar strengthening method has the beneficial effects that the hardness of the finally obtained polar is improved remarkably, the drying effect is uniform, the polar deformation rate in the drying process is low, and the strength and hardness of the cell wall of the strengthened polar are both improved remarkably.
Description
Technical field
The present invention relates to a kind of wood processing treatment technical field, and in particular to strengthen processing method for a kind of poplar.
Background technology
A kind of fast-growing tree species of poplar, the features such as it has wide adaptability, growth period in year length, speed of production is fast, south China
And there is extensive plantation in the north, Poplar Resource is compared with horn of plenty.Its matter is soft, and property is steady, cheap and easy to get, often as aspen furniture
The tire bone of attached material and lacquer furniture is used on ancient furniture.Because aspen fibers by using silicon short texture, material are relatively poor, it applies model
Enclose by larger restriction, be mainly used as at present solid wooden compound floor central layer, building template, base plate, short-cycle industrial material material or
Road, river course green tree species.
The content of the invention
To solve existing poplar short texture, low strength causes range of application to be subject to the problem of larger restriction, the present invention
Purpose be to provide a kind of poplar to strengthen processing method.
The technical solution used in the present invention is that a kind of poplar strengthens processing method, including following process step：
（1）Acidification：Poplar impregnated in the acidifying solution that pH value is 2.4-2.8, be 0.05-0.08Mpa in vacuum, it is warm
Spend to process at 30-32 DEG C, wherein, the poplar process time of thickness ＜ 10cm is 8-9 minutes, poplar of the thickness in 10-25cm
Process time is 15-17 minutes, and the poplar process time of thickness G T.GT.GT 25cm is 20-23 minutes；
（2）Dry tack free process：The single level of poplar is vacantly processed in hot blast, hot air outlet is inclined horizontal by 90 °
Oblique angle, hot air outlet wind speed is 3.3-3.5m/s, and hot blast temperature is 26-28 DEG C, wherein, at the poplar drying of thickness ＜ 10cm
The reason time is 16-18 minutes, in processing procedure, a face is turned over every 3 minutes, and thickness is in the poplar dried process of 10-25cm
Between be 25-28 minutes, in processing procedure, turned over a face every 5 minutes, the poplar dried process time of thickness G T.GT.GT 25cm is 38-
40 minutes, in processing procedure, every 5 minutes, turn over a face；
（3）Intensive treatment：Poplar after process impregnated in and impregnate in the methyl acrylate ethanol solution that concentration is 10-12ml/L
Process, wherein, the poplar process time of thickness ＜ 10cm is 40-45 minutes, and thickness is 2- in the poplar process time of 10-25cm
2.5 hours, the poplar process time of thickness G T.GT.GT 25cm was 6-7 hours；
（4）Dried process：Poplar is placed in dried process room, dried process room is vacuumized, appropriate helium is passed through afterwards,
Make the pressure in dried process room be maintained at -0.05 ~ -0.03Mpa, keep dried process indoor temperature at 45-50 DEG C, wherein,
The poplar process time of thickness ＜ 10cm is 30-40 minutes, and thickness is 70-80 minutes in the poplar process time of 10-25cm, thick
The poplar process time of degree ＞ 25cm is 120-140 minutes.
Beneficial effect of the present invention is that the poplar hardness that the present invention finally gives is significantly increased, and drying effect is uniform,
Poplar deformation rate is low in dry run, the poplar cell wall strength Jing after intensive treatment by 5.82GPa increase to 33.35GPa with
On, the hardness of cell membrane increases to more than 1.07GPa by 0.20GPa after process, and the poplar hardness after process is obviously improved,
And surfacing, fully achieve the requirement that solid wood is utilized；
Wherein, after the acidified process of poplar, wood permeability is obviously improved, beneficial to methyl acrylate during intensive treatment
The immersion of ethanol solution, to improve the intensity of poplar, poplar vacuumizes under nitrogen protection dried process, can significantly shorten poplar
Drying time, and reduce deforming incidence after poplar is dried.
Specific embodiment
Embodiment 1：
A kind of poplar strengthens processing method, including following process step：
（1）Acidification：Poplar impregnated in the acidifying solution that pH value is 2.4, be 0.05Mpa in vacuum, temperature is 30 DEG C
Lower process, wherein, the poplar process time of thickness ＜ 10cm is 8 minutes, and thickness is in the poplar dried process time of 10-25cm
15 minutes, the poplar process time of thickness G T.GT.GT 25cm was 20 minutes；
（2）Dry tack free process：The single level of poplar is vacantly processed in hot blast, hot air outlet is inclined horizontal by 90 °
Oblique angle, hot air outlet wind speed is 3.3m/s, and hot blast temperature is 26 DEG C, wherein, the poplar dried process time of thickness ＜ 10cm
For 16 minutes, in processing procedure, a face was turned over every 3 minutes, thickness is 25 points in the poplar dried process time of 10-25cm
Clock, in processing procedure, a face was turned over every 5 minutes, and the poplar dried process time of thickness G T.GT.GT 25cm is 38 minutes, processing procedure
In, every 5 minutes, turn over a face；
（3）Intensive treatment：Poplar after process impregnated in the methyl acrylate ethanol solution that concentration is 10ml/L at dipping
Reason, wherein, the poplar process time of thickness ＜ 10cm is 40 minutes, and thickness is 2 hours in the poplar process time of 10-25cm,
The poplar process time of thickness G T.GT.GT 25cm is 6 hours；
（4）Dried process：Poplar is placed in dried process room, dried process room is vacuumized, appropriate helium is passed through afterwards,
Make the pressure in dried process room be maintained at -0.05Mpa, keep dried process indoor temperature at 45 DEG C, wherein, thickness ＜ 10cm
Poplar process time be 30 minutes, thickness 10-25cm poplar process time be 70 minutes, at the poplar of thickness G T.GT.GT 25cm
The reason time is 120 minutes.
Embodiment 2：
A kind of poplar strengthens processing method, including following process step：
（1）Acidification：Poplar impregnated in the acidifying solution that pH value is 2.8, be 0.08Mpa in vacuum, temperature is 32 DEG C
Lower process, wherein, the poplar process time of thickness ＜ 10cm is 9 minutes, and thickness is in the poplar dried process time of 10-25cm
17 minutes, the poplar process time of thickness G T.GT.GT 25cm was 23 minutes；
（2）Dry tack free process：The single level of poplar is vacantly processed in hot blast, hot air outlet is inclined horizontal by 90 °
Oblique angle, hot air outlet wind speed is 3.5m/s, and hot blast temperature is 28 DEG C, wherein, the poplar dried process time of thickness ＜ 10cm
For 18 minutes, in processing procedure, a face was turned over every 3 minutes, thickness is 28 points in the poplar dried process time of 10-25cm
Clock, in processing procedure, a face was turned over every 5 minutes, and the poplar dried process time of thickness G T.GT.GT 25cm is 40 minutes, processing procedure
In, every 5 minutes, turn over a face；
（3）Intensive treatment：Poplar after process impregnated in the methyl acrylate ethanol solution that concentration is 12ml/L at dipping
Reason, wherein, the poplar process time of thickness ＜ 10cm is 45 minutes, and thickness is 2.5 little in the poplar process time of 10-25cm
When, the poplar process time of thickness G T.GT.GT 25cm is 7 hours；
（4）Dried process：Poplar is placed in dried process room, dried process room is vacuumized, appropriate helium is passed through afterwards,
Make the pressure in dried process room be maintained at -0.03Mpa, keep dried process indoor temperature at 50 DEG C, wherein, thickness ＜ 10cm
Poplar process time be 40 minutes, thickness 10-25cm poplar process time be 80 minutes, at the poplar of thickness G T.GT.GT 25cm
The reason time is 140 minutes.
Below in conjunction with concrete drying test, the present invention is further described：
Test former material is specification 200mm × 100mm × 20mm（Length × width × height）, it is divided into five groups of A, B, C, D, E, 5 pieces per group,
Wooden unit is made from the same strain poplar that same forest farm is cut down, and before being dried, accurate measurement tests the size of former material；
A blocks timber is dried using the mode of embodiment 1；
B blocks timber is on the basis of embodiment 1 by step（1）In pH value be that 2.8 acidifying solution replaces with conventional water；
C blocks timber is on the basis of embodiment 1 by step（3）In methyl acrylate ethanol solution replace with conventional water；
D blocks timber cancellation step on the basis of embodiment 1（4）In be passed through appropriate helium；
E wooden units adopt usual manner dried process；
After final process terminates, measurement each group poplar cell wall strength, the hardness of cell membrane, section deformation value, distortion value, bending
Value, is finally dried water content；
The results are shown in Table 1：
| Group | Cell wall strength（GPa） | Cell membrane hardness（GPa） | Section deformation mean value（mm） | Torsional deformation mean value（mm） | Flexural deformation mean value（mm） | Finally it is dried water content（%） |
| A | 33.38 | 1.09 | 0.12 | 0.088 | 0.13 | 9.6 |
| B | 16.04 | 0.55 | 0.71 | 0.44 | 0.19 | 9.2 |
| C | 3.22 | 0.10 | 1.05 | 1.27 | 2.23 | 9.5 |
| D | 33.15 | 0.96 | 1.62 | 1.90 | 2.8 | 18.8 |
| E | 5.84 | 0.21 | 1.68 | 1.93 | 3.51 | 10.2 |
From upper table 1, Jing after the process of embodiment 1, cell wall strength, hardness are significantly improved poplar, finally give
Poplar water content is low, and deformation extent is almost negligible.
Claims (5)
1. a kind of poplar strengthens processing method, it is characterised in that including following process step：
（1）Acidification：Poplar impregnated in the acidifying solution that pH value is 2.4-2.8, be 0.05-0.08Mpa in vacuum, it is warm
Spend to process at 30-32 DEG C；
（2）Dry tack free process：The single level of poplar is vacantly processed in hot blast, hot air outlet is inclined horizontal by 90 °
Oblique angle, hot air outlet wind speed is 3.3-3.5m/s, and hot blast temperature is 26-28 DEG C；
（3）Intensive treatment：Poplar after process impregnated in and impregnate in the methyl acrylate ethanol solution that concentration is 10-12ml/L
Process, wherein, the poplar reinforced process time of thickness ＜ 10cm is 40-45 minutes；
（4）Dried process：Poplar is placed in dried process room, dried process room is vacuumized, appropriate helium is passed through afterwards,
Make the pressure in dried process room be maintained at -0.05 ~ -0.03Mpa, keep dried process indoor temperature at 45-50 DEG C.
2. a kind of poplar according to claim 1 strengthens processing method, it is characterised in that
The poplar acidification time of thickness ＜ 10cm is 8-9 minutes, and thickness is in the poplar acidification time of 10-25cm
15-17 minutes, the poplar acidification time of thickness G T.GT.GT 25cm is 20-23 minutes.
3. a kind of poplar according to claim 1 strengthens processing method, it is characterised in that
The poplar dry tack free process time of thickness ＜ 10cm is 16-18 minutes, in processing procedure, a face is turned over every 3 minutes,
Thickness is 25-28 minutes in the poplar dry tack free process time of 10-25cm, in processing procedure, a face is turned over every 5 minutes,
The poplar dry tack free process time of thickness G T.GT.GT 25cm is 38-40 minutes, in processing procedure, every 5 minutes, turns over a face.
4. a kind of poplar according to claim 1 strengthens processing method, it is characterised in that
Thickness is 2-2.5 hours in the poplar reinforced process time of 10-25cm, and the poplar reinforced process time of thickness G T.GT.GT 25cm is
6-7 hours.
5. a kind of poplar according to claim 1 strengthens processing method, it is characterised in that
The poplar dried process time of thickness ＜ 10cm is 30-40 minutes, and thickness is in the poplar dried process time of 10-25cm
70-80 minutes, the poplar dried process time of thickness G T.GT.GT 25cm is 120-140 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611106880.6A CN106625929A (en) | 2016-12-06 | 2016-12-06 | Poplar strengthening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611106880.6A CN106625929A (en) | 2016-12-06 | 2016-12-06 | Poplar strengthening method |
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| Publication Number | Publication Date |
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| CN106625929A true CN106625929A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611106880.6A Pending CN106625929A (en) | 2016-12-06 | 2016-12-06 | Poplar strengthening method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370406A (en) * | 2019-07-15 | 2019-10-25 | 欧派家居集团股份有限公司 | Effective plate anti-deformation reliability checking method and the method for accelerating plate deformation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257776A (en) * | 1998-12-24 | 2000-06-28 | 中国科学院生物物理研究所 | Method for producing anticorrosion and flame-retarding composite material of wood and high polymer with excellent mechanical properties and its products |
| CN103517928A (en) * | 2011-03-30 | 2014-01-15 | 巴斯夫欧洲公司 | Aqueous multistage polymer dispersion, process for its preparation and use thereof as binder for coating substrates |
| CN103568088A (en) * | 2013-11-11 | 2014-02-12 | 中南林业科技大学 | Method for preparing vitrified timber through bulk polymerization of methyl methacrylate in timber |
| CN104070575A (en) * | 2014-05-27 | 2014-10-01 | 定远县林能木业有限责任公司 | Long-acting modified treating agent for wood floor timber |
| CN104802259A (en) * | 2015-04-20 | 2015-07-29 | 青岛保利康新材料有限公司 | Improved high-permeability wood preservative |
-
2016
- 2016-12-06 CN CN201611106880.6A patent/CN106625929A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257776A (en) * | 1998-12-24 | 2000-06-28 | 中国科学院生物物理研究所 | Method for producing anticorrosion and flame-retarding composite material of wood and high polymer with excellent mechanical properties and its products |
| CN103517928A (en) * | 2011-03-30 | 2014-01-15 | 巴斯夫欧洲公司 | Aqueous multistage polymer dispersion, process for its preparation and use thereof as binder for coating substrates |
| CN103568088A (en) * | 2013-11-11 | 2014-02-12 | 中南林业科技大学 | Method for preparing vitrified timber through bulk polymerization of methyl methacrylate in timber |
| CN104070575A (en) * | 2014-05-27 | 2014-10-01 | 定远县林能木业有限责任公司 | Long-acting modified treating agent for wood floor timber |
| CN104802259A (en) * | 2015-04-20 | 2015-07-29 | 青岛保利康新材料有限公司 | Improved high-permeability wood preservative |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370406A (en) * | 2019-07-15 | 2019-10-25 | 欧派家居集团股份有限公司 | Effective plate anti-deformation reliability checking method and the method for accelerating plate deformation |
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Application publication date: 20170510 |