CN106926333A - Improve processing method of the wood surface to paint film adhesion - Google Patents
Improve processing method of the wood surface to paint film adhesion Download PDFInfo
- Publication number
- CN106926333A CN106926333A CN201710091781.3A CN201710091781A CN106926333A CN 106926333 A CN106926333 A CN 106926333A CN 201710091781 A CN201710091781 A CN 201710091781A CN 106926333 A CN106926333 A CN 106926333A
- Authority
- CN
- China
- Prior art keywords
- processing method
- timber
- plasma jet
- paint film
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002023 wood Substances 0.000 title claims abstract description 24
- 239000003973 paint Substances 0.000 title claims abstract description 21
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 241000218652 Larix Species 0.000 claims description 4
- 235000005590 Larix decidua Nutrition 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 15
- 230000001070 adhesive effect Effects 0.000 abstract description 15
- 230000000052 comparative effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 238000004381 surface treatment Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000002977 hyperthermial effect Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012173 sealing wax Substances 0.000 description 1
- 230000034655 secondary growth Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B27K5/001—Heating
-
- 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
- B27K5/0015—Treating of wood not provided for in groups B27K1/00, B27K3/00 by electric means
- B27K5/002—Electric discharges, plasma
Abstract
Timber is surface-treated the invention provides a kind of new temperature programming heat treatment and the plasma jet method that is combined for the treatment of, wood surface is to paint film adhesion reduction caused by solving the problems, such as prior heat treatment method, after being surface-treated to timber using method of the present invention, wood surface has to the adhesive force of paint film and greatly improves.It is simple to operate and the processing method will not destroy the internal structure of timber, popularization and application can be carried out as a kind of good Wood treatment method.
Description
Technical field
The present invention relates to a kind of surface treatment method of chemical material field, and in particular to one kind improves wood surface especially
It is processing method of the larchwood to paint film adhesion.
Background technology
With respect to the artificial forest of low-quality, especially larchwood accumulation is abundant for China, its quality weight and solid, resistance to compression and anti-
The intensity of bending is big, and corrosion resistance is preferably, is the excellent use material of electric pole, sleeper, bridge, ore pillar, vehicle, building etc., but
Its stability and color problem are always the drawbacks of applying.Timber high-temperature heat treatment is a kind of conventional method for modifying wood, work
Skill flow is simple, processing procedure is environmentally safe, is capable of the quality of improved wood, reduces the hygroscopicity and water imbibition of timber,
Dimensional stability, biological rotproofness and against weather are improved, and larch dimensional stability can be effectively improved and deepened timber
Color makes it be gradually transitions dark brown by primary colors, while the treatment wood color difference that can also reduce timber color difference or make aberration larger becomes
In unification, increase the ornamental of timber.
But timber, after current high-temperature heat treatment technological improvement, its top finishing performance, bonding property are especially wooden
Material surface all decreases to the adhesive force of paint film, directly affects function improvement and the decorating feature of woodwork.Therefore in order to carry
The adhesive force of the surface property of timber high, particularly wood surface to paint film, it is desirable to provide a kind of new surface to be carried out to timber
The method of functional processing improves the adhesive force of wood surface paint film.
The content of the invention
Regarding to the issue above, an aspect of of the present present invention provides the processing method that can improve wood surface paint film adhesive force,
It includes：
Temperature programming is heat-treated, and adjusts the moisture content of timber in 5-7%；
Plasma jet is surface-treated, wherein,
The working gas of the plasma jet processor for using is nitrogen, and operating pressure is 0.05-0.07Mpa, for example
0.05Mpa, 0.06Mpa, 0.07Mpa.
In certain embodiments, the treatment of the plasma jet highly be 15-35mm, such as 15mm, 25mm,
35mm。
In certain embodiments, the process time of the plasma jet be 15-45s, such as 15s, 25s, 30s,
40s、45s。
In certain embodiments, the power of the plasma surface treating machine is 180-200W.
Timber of the present invention is to be capable of the lignified tissue that the plant of secondary growth is formed.These plants are nascent
After growth terminates, the vascular cambium in rhizome comes into play, and outwards develops bast, inwardly develops timber.In some realities
Apply in example, the timber is larch.
Temperature programming heat treatment of the present invention refers to that sample is continuously linearly over time or non-according to setting program
The linear processing procedure for gradually rising or reducing, wherein inert gas can be passed through in processing procedure.
In certain embodiments, described program intensification heat treatment is comprised the following steps,
First heating step：120 DEG C are progressively risen to by room temperature with the speed of 15 DEG C/h, and is incubated 3h；
Second heating step：Be passed through inert gas and keep the oxygen quality fraction in thermal chamber less than 5%, and simultaneously with
The speed of 10 DEG C/h continues to be raised to 150 DEG C, is incubated 3h；
3rd heating step：It is continually fed into inert gas and keeps the oxygen quality fraction in thermal chamber less than 5%, and with
The speed of 10 DEG C/h is raised to 240 DEG C, after insulation 6h；
Cooling step, room temperature is naturally cooled to by thermal chamber, and it is 5-7% that moisture content value is adjusted in the process.
Timber and its product under normal condition, can all there is a number of moisture.Moisture content of the present invention is
Percentage of the finger wood weight after the weight and over dry of contained humidity in timber.The moisture content refers to GB/T1931-2009
Method for determination of the moisture content of wood is measured.
When external influences such as gas is heated, electric field, high-energy radiations, the electronic structure such as atom, molecule in gas
Electronics, ion and the neutral particle of excitation state will be formed because of restructuring.Plasma of the present invention refer to by ground state and
The admixture of gas of the electronics, ion and neutral particle composition of excitation state.From from the perspective of macroscopic view, plasma is electroneutral
's.It is different from common solid-state, liquid or gaseous material, therefore plasma is referred to as the 4th state of material.
Plasma jet of the present invention can open space, rather than such as conventional discharge only in discharging gap
Plasma is produced, its simpler convenience of operation.Treatment height of the present invention refers to that plasma jet processor goes out
The distance of the level height of the plasma stream of mouth and the wood surface parallel to the plasma stream.
Timber generally require when in use through hyperthermia process, but by the timber after traditional high-temperature heat treatment its
Top finishing performance, bonding property, especially paint film adhesion all decrease.And at the temperature programming heat that the present invention is provided
Reason, by regulating and controlling different programming rate and holding temperature and the times, preferably can be processed wood surface, Ran Houzai
Timber is processed by being processed by the timber binding plasma jet surface of said procedure hyperthermic treatment, can be made
The lignin of wood surface, cellulose and hemicellulose introduce a large amount of free groups, cause surface hydrophilicity to increase, raising timber
The free energy on surface, so as to greatly improve the paint film adhesion of wood surface, and the processing method energy-conserving and environment-protective, do not influence and
Destroy the internal structure of wood matrix.
Specific embodiment
Now describe various exemplary implementation method of the invention in detail, the detailed description is not considered as to limit of the invention
System, and it is understood as the more detailed description to certain aspects of the invention, characteristic and embodiment.
It should be understood that heretofore described term is only to describe special implementation method, being not intended to limit this hair
It is bright.In addition, for the number range in the present invention, it is thus understood that it is also specifically disclosed that every between the upper and lower bound of the scope
Individual median.Median and any other statement value in any statement value or stated ranges or in the scope in
Between each less scope between value be also included in the present invention.These small range of upper and lower bounds can independently include
Or exclude in the range of.
Unless otherwise stated, all technologies used herein and scientific terminology have the routine in field of the present invention
The identical meanings that technical staff is generally understood that.Although the present invention only describes preferred method and material, of the invention
Implement or can also be used and similar or equivalent any method described herein and material in testing.
Embodiment
Larch is processed into the planed lumber of 300mm (length) × 100mm (width) × 10mm (thickness) respectively first in case implementing
Example and comparative example are used.
Taking one piece of planed lumber of above-mentioned machine-shaping successively carries out temperature programming heat treatment and plasma jet treatment.Its
In,
Temperature programming heat treatment process：
One piece of above-mentioned finished planed lumber is taken to be put into thermal chamber and then carry out as steps described below at temperature programming heat
Reason.
First heating step：120 DEG C are progressively risen to by room temperature with the speed of 15 DEG C/h, and is incubated 3h；
Second heating step：It is passed through nitrogen and keeps the oxygen quality fraction in thermal chamber less than 5%, and simultaneously with 10
DEG C/speed of h continues to be raised to 150 DEG C, is incubated 3h；
3rd heating step：It is continually fed into nitrogen and keeps the oxygen quality fraction in thermal chamber less than 5%, and with 10
DEG C/speed of h is raised to 240 DEG C, after insulation 6h；
Cooling step, room temperature is naturally cooled to by thermal chamber, and moisture content value is adjusted in the process in 5-7%.
Plasma jet processing procedure：
Operating pressure, power, treatment height and the process time of plasma jet processor are adjusted, working gas is nitrogen
Gas, to carrying out nitrogen gas plasma jet treatment by the heat treated timber of said procedure intensification, obtains surface-treated
Timber.
Operating pressure, power, the place of the jet plasma processor used in wherein embodiment 1-9 and comparative example 1-5
The concrete condition of reason height and process time as shown in table 1, comparative example 6 be only carry out temperature programming heat treatment process to timber and
Do not carry out plasma jet treatment.The timber treated in embodiment 1-9 and comparative example 1-6 is respectively adopted identical method
Smear same timber sealing wax, adhesive force test then carried out using cross-hatching, with specific reference to standard GB/T/T9286-
1998, the adhesive force test result between different embodiments and the timber and paint film of comparative example is as shown in table 1.
Table 1
| Sample | Power | Operating pressure | Moisture content | Process time | Treatment height | Adhesive force |
| Embodiment 1 | 190W | 0.06MPa | 6% | 30s | 25mm | 0 grade |
| Embodiment 2 | 180W | 0.07MPa | 6% | 20s | 35mm | 0 grade |
| Embodiment 3 | 200W | 0.05MPa | 5% | 35s | 15mm | 0 grade |
| Embodiment 4 | 190W | 0.06MPa | 7% | 15s | 25mm | 0 grade |
| Embodiment 5 | 190W | 0.06MPa | 6% | 45s | 30mm | 0 grade |
| Embodiment 6 | 190W | 0.06MPa | 5% | 25s | 25mm | 0 grade |
| Embodiment 7 | 200W | 0.06MPa | 6% | 30s | 20mm | 0 grade |
| Embodiment 8 | 190W | 0.06MPa | 6% | 30s | 25mm | 0 grade |
| Embodiment 9 | 190W | 0.06MPa | 6% | 30s | 25mm | 0 grade |
| Comparative example 1 | 220W | 0.06MPa | 6% | 30s | 25mm | 1 grade |
| Comparative example 2 | 190W | 0.08MPa | 6% | 30s | 25mm | 1 grade |
| Comparative example 3 | 190W | 0.06MPa | 8% | 30s | 25mm | 1 grade |
| Comparative example 4 | 190W | 0.06MPa | 6% | 50s | 25mm | 1 grade |
| Comparative example 5 | 190W | 0.06MPa | 6% | 30s | 50mm | 1 grade |
| Comparative example 6 | —— | —— | —— | —— | —— | 2 grades |
Be can see by table 1, embodiment 1-9 employs temperature programming heat treatment of the present invention and plasma is penetrated
Stream surface treatment method is surface-treated to timber, and treated wood surface and the adhesive force of paint film all reach 0 grade, and
Timber in embodiment 6 is only heat-treated without carrying out plasma jet surface treatment by temperature programming, its wood surface
It is only 2 grades with the adhesive force of paint film, this explanation, this explanation timber is by temperature programming heat treatment of the present invention and plasma
The treated timber of body jet surface, its surface is significantly increased to the adhesive force of paint film, and temperature programming treatment and plasma are penetrated
Stream process are combined the adhesive force that can significantly improve wood surface to paint film.Although the timber table that embodiment 1-9 is obtained
0 grade is in face of the adhesive force of paint film, but can be by being observed during detection, the paint film adhesion of the timber in embodiment 1
Significantly better than other embodiment.Processing method is changed at plasma jet surface respectively compared to embodiment 1 in comparative example 1-5
Power, operating pressure, moisture content, process time and the treatment height used during reason, its wood surface pair for obtaining
The adhesive force of paint film is then 1 grade, this explanation, when plasma jet processing procedure is to adjust the power that plasma jet is processed
Be 190W, operating pressure is 0.06MPa, and moisture content is 6%, and process time is 30s, treatment height for 25mm when, wait from
Daughter jet surface treatment timber can preferably lift adhesive force of the wood surface to paint film.
In the case of without departing substantially from the scope of the present invention or spirit, can do many to the specific embodiment of description of the invention
Plant and improve and change, this will be apparent to those skilled in the art.Other realities obtained by specification of the invention
It is for technical personnel apparent obtaining to apply mode.Present specification and embodiment are only exemplary.
Claims (10)
1. to the processing method of paint film adhesion, it includes a kind of raising wood surface：
Temperature programming is heat-treated, and adjusts the moisture content of timber in 5-7%；
Plasma jet is surface-treated, wherein,
The operating pressure of the plasma jet processor for using is 0.05-0.07Mpa, and working gas is nitrogen.
2. processing method according to claim 1, it is characterised in that：
The treatment of the plasma jet is highly 15-35mm.
3. processing method according to claim 1, it is characterised in that：
The process time of the plasma jet is 15-45s.
4. processing method according to claim 1, it is characterised in that：
The timber is larch.
5. processing method according to claim 1, it is characterised in that：
The power of the plasma surface treating machine is 180-200W.
6. the processing method according to claim any one of 1-5, it is characterised in that：
Described program intensification heat treatment is comprised the following steps,
First heating step：120 DEG C are progressively risen to by room temperature with the speed of 15 DEG C/h, and is incubated 3h；
Second heating step：It is passed through inert gas and keeps the oxygen quality fraction in thermal chamber less than 5%, and simultaneously with 10
DEG C/speed of h continues to be raised to 150 DEG C, is incubated 3h；
3rd heating step：It is continually fed into inert gas and keeps the oxygen quality fraction in thermal chamber less than 5%, and with 10
DEG C/speed of h is raised to 240 DEG C, after insulation 6h；
Cooling step, room temperature is naturally cooled to by thermal chamber, and it is 5-7% that moisture content value is adjusted in the process.
7. processing method according to claim 6, it is characterised in that：
The treatment of the plasma jet is highly 25mm.
8. processing method according to claim 7, it is characterised in that：
The process time of the plasma jet is 30s.
9. processing method according to claim 7, it is characterised in that：
The inert gas is nitrogen.
10. processing method according to claim 7, it is characterised in that：
The moisture content is 6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710091781.3A CN106926333B (en) | 2017-02-21 | 2017-02-21 | Improve processing method of the wood surface to paint film adhesion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710091781.3A CN106926333B (en) | 2017-02-21 | 2017-02-21 | Improve processing method of the wood surface to paint film adhesion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106926333A true CN106926333A (en) | 2017-07-07 |
| CN106926333B CN106926333B (en) | 2018-11-02 |
Family
ID=59423775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710091781.3A Active CN106926333B (en) | 2017-02-21 | 2017-02-21 | Improve processing method of the wood surface to paint film adhesion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106926333B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583841A (en) * | 2017-11-06 | 2018-01-16 | 湖州南浔凤强木业有限公司 | A kind of woodwork paint application technique |
| CN109333692A (en) * | 2018-09-20 | 2019-02-15 | 德华兔宝宝装饰新材股份有限公司 | A kind of method that plasma modification height emulates scientific and technological wood skin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5143748A (en) * | 1990-10-26 | 1992-09-01 | Matsushita Electric Works, Ltd. | Timber surface improving treatment process |
| CN101224593A (en) * | 2008-02-01 | 2008-07-23 | 中国林业科学研究院木材工业研究所 | Wood heat treatment method |
| CN103194002A (en) * | 2013-05-02 | 2013-07-10 | 东北林业大学 | Synergetic surface treatment method applied to hardly adhered polyolefin-based wood-plastic composite |
| CN106217524A (en) * | 2016-07-29 | 2016-12-14 | 上海轩颂建筑科技有限公司 | A kind of preparation method of environment-friendly and high-performance bamboo flooring |
-
2017
- 2017-02-21 CN CN201710091781.3A patent/CN106926333B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5143748A (en) * | 1990-10-26 | 1992-09-01 | Matsushita Electric Works, Ltd. | Timber surface improving treatment process |
| CN101224593A (en) * | 2008-02-01 | 2008-07-23 | 中国林业科学研究院木材工业研究所 | Wood heat treatment method |
| CN103194002A (en) * | 2013-05-02 | 2013-07-10 | 东北林业大学 | Synergetic surface treatment method applied to hardly adhered polyolefin-based wood-plastic composite |
| CN106217524A (en) * | 2016-07-29 | 2016-12-14 | 上海轩颂建筑科技有限公司 | A kind of preparation method of environment-friendly and high-performance bamboo flooring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583841A (en) * | 2017-11-06 | 2018-01-16 | 湖州南浔凤强木业有限公司 | A kind of woodwork paint application technique |
| CN109333692A (en) * | 2018-09-20 | 2019-02-15 | 德华兔宝宝装饰新材股份有限公司 | A kind of method that plasma modification height emulates scientific and technological wood skin |
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| CN106926333B (en) | 2018-11-02 |
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