CN103481343B - A kind of difficult pine class solid wood flame-retardant impregnating treatment process - Google Patents
A kind of difficult pine class solid wood flame-retardant impregnating treatment process Download PDFInfo
- Publication number
- CN103481343B CN103481343B CN201310424701.3A CN201310424701A CN103481343B CN 103481343 B CN103481343 B CN 103481343B CN 201310424701 A CN201310424701 A CN 201310424701A CN 103481343 B CN103481343 B CN 103481343B
- Authority
- CN
- China
- Prior art keywords
- wood
- retardant
- fire
- flame
- timber
- 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.)
- Expired - Fee Related
Links
- 239000002023 wood Substances 0.000 title claims abstract description 97
- 239000003063 flame retardant Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000007787 solid Substances 0.000 title claims abstract description 24
- 235000008331 Pinus X rigitaeda Nutrition 0.000 title claims abstract description 19
- 235000011613 Pinus brutia Nutrition 0.000 title claims abstract description 19
- 241000018646 Pinus brutia Species 0.000 title claims abstract description 19
- 235000005456 Pinus sylvestris var mongolica Nutrition 0.000 claims abstract description 28
- 241000114025 Pinus sylvestris var. mongolica Species 0.000 claims abstract description 28
- 230000010355 oscillation Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000007654 immersion Methods 0.000 claims abstract description 9
- 238000005470 impregnation Methods 0.000 claims abstract description 9
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 230000009514 concussion Effects 0.000 claims description 14
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 4
- LWFBRHSTNWMMGN-UHFFFAOYSA-N 4-phenylpyrrolidin-1-ium-2-carboxylic acid;chloride Chemical compound Cl.C1NC(C(=O)O)CC1C1=CC=CC=C1 LWFBRHSTNWMMGN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 3
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 11
- 229940079593 drug Drugs 0.000 abstract description 11
- 239000000779 smoke Substances 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
A kind of difficult pine class solid wood flame-retardant impregnating treatment process, relates to a kind of Wood fire retardant treatment process.Described technique concrete steps are as follows: wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface, carry out supersonic oscillations; After supersonic oscillations terminate, wood sample is taken out, dry; Dried timber is put into vacuum pressing impregnation tank; Fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, makes fire resistant fluid immerse the enough depths of timber; By immersion can release, take out the timber impregnated; The timber impregnated is sent into hothouse inner drying, namely completes the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating.The pinus sylvestris var. mongolica solid wood of present invention process flame treatment, carrying drug ratio has had obvious lifting compared to common process wood treated with fire retardants, effectively improves fire-retarding of wood smoke suppressing.
Description
Technical field
The present invention relates to a kind of Wood fire retardant treatment process, particularly a kind of difficult pine class solid wood flame-retardant impregnating treatment process.
Background technology
Timber, as a kind of renewable resource, is widely used in the various aspects of people's life.Furniture, finishing, door and window etc. are formed by timber, but the inflammable characteristic of timber also makes people at every moment be faced with the danger of fire.General wood type furniture can enter combustion process very soon when breaking out of fire, and release amount of heat, causes very large harm to other timber-work and non-wood goods.And when the wood type furniture of flame treatment occurs at fire, thermal release significantly reduces, the intensity of a fire also obviously reduces, and fire no longer easily spreads.So fire-retarding of wood has vital effect for the prevention of fire and improvement, the security of the lives and property for people plays important meaning.
Pinus sylvestris var. mongolica, as pine tree class timber, is closely subject to liking of people owing to being rich in grease, quality.Pinus sylvestris var. mongolica class solid wood in occupation of certain share, plays key player on upholstery market.But these advantages of pinus sylvestris var. mongolica timber also become the defect that it carries out flame treatment, make wood fire retardant composition be difficult to enter timber depths simultaneously.The present invention with difficult material pinus sylvestris var. mongolica for research object, but it is fire-retardant to be applicable to various pine class solid wood.
Summary of the invention
Main purpose of the present invention is to be directed to pinus sylvestris var. mongolica class timber and is rich in the features such as grease, quality be tight, improves the difficult defect of the flame-retardant impregnating of pinus sylvestris var. mongolica class solid wood, provides a kind of technique of flame-retardant impregnating efficiency of raising pine class solid wood of efficient, low cost.
The present invention carries out flame-retardant impregnating process to pine class solid wood in accordance with the following steps:
(1) wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) arrange that water temperature is 60 ~ 80 DEG C, concussion frequency is 20 ~ 40Hz, the concussion time is 30 ~ 60min;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) wood sample takes out after terminating by supersonic oscillations, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) prepare fire-retarding of wood solution, described fire-retarding of wood solution is mixed by wood fire retardant and water, and the mass concentration of wood fire retardant is 8 ~ 16%;
(6) dried timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.8 ~ 1.0MPa, maintain 10 ~ 30min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.6 ~ 1.0MPa, maintain 30 ~ 60min, make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes lumber flame-retardant impregnating process.
The present invention with difficult material pinus sylvestris var. mongolica for research object, but it is fire-retardant to be applicable to various pine class solid wood.Higher in order to pinus sylvestris var. mongolica solid wood can be made to absorb flame retardant efficacy, first supersonic oscillations are carried out to timber with numerical control supersonic oscillator, ultrasonic cavitation effect can be produced.First ultrasonic cavitation effect is the place of strength weak from liquid, occur a lot of cavitation nucleus in liquid, under the effect of sound negative pressure, cavitation nucleus expands and forms cavitation bubble.Vacuum impregnation technique is full-cell process, and initial vacuum can remove the interstructural gas of wood cell, and final vacuum can remove outer flame retardant solution, is beneficial to drying.
The present invention adopts ultrasonic wave process can produce ultrasonic cavitation effect, and its sound intensity produced can destroy the structure such as vapor membrane, oil membrane between pinus sylvestris var. mongolica lumber fibre structure, improves the immersion depth of flame retardant solution.In research, flame retardant solution selects FRW wood fire retardant and APP fire retardant to prepare, and WOOD FIRE RETARDANT FRW and APP are very excellent fire retardants, the flame-retardant smoke inhibition Be very effective of fire retarding wood.And the main component of FRW wood fire retardant is guanyl-urea-phosphate GUP and boric acid H
3bO
3, be the wood fire retardant that a kind of dissolubility is good, Acidity of Aikalinity is gentle.And flame treatment efficiency of the present invention is high, special only for being rich in the flame-retardant impregnating process of grease, quality pine class solid wood closely.The pinus sylvestris var. mongolica solid wood of present invention process flame treatment, carrying drug ratio has had obvious lifting compared to common process wood treated with fire retardants, effectively improves fire-retarding of wood smoke suppressing.Use supersonic oscillations and do not use supersonic oscillations on the impact of carrying drug ratio after the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating as shown in Figure 1, can find out that carrying out vacuum pressed again through supersonic oscillations floods flame treatment, more concentrated than not using the carrying drug ratio of the pinus sylvestris var. mongolica wood sample of supersonic oscillations process to distribute, dispersed reduction, the average carrying drug ratio of fire-retardant pinus sylvestris var. mongolica wood sample rises to 9.85% from 7.19%.
Accompanying drawing explanation
Fig. 1 is for using and not using supersonic oscillations pinus sylvestris var. mongolica timber carrying drug ratio distribution map.
Detailed description of the invention
Below technical scheme of the present invention is further described, but does not limit to so, everyly technical solution of the present invention is modified or equivalently to replace, and do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in protection scope of the present invention.
For pinus sylvestris var. mongolica solid wood, the present invention carries out flame-retardant impregnating process to difficult pine class solid wood in accordance with the following steps:
(1) first wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) temperature 60 ~ 80 DEG C of water, concussion frequency 20 ~ 40Hz, concussion time 30 ~ 60min are set;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) after terminating, wood sample is taken out, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) fire-retarding of wood solution is prepared;
(6) timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.8 ~ 1.0MPa, maintain 10 ~ 30min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.6 ~ 1.0MPa, maintain 30 ~ 60min and make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating.
In the present invention, fire-retarding of wood solution is mixed by wood fire retardant and water, wherein the concentration of wood fire retardant is 8 ~ 16%, described wood fire retardant is by FRW wood fire retardant and water-soluble ammonium polyphosphate APP is composite forms, wherein water-soluble poly ammonium phosphate polymerization degree n≤20; FRW wood fire retardant (CN1213603) is prepared by Northeast Forestry University's fire-retarding of wood laboratory, and by guanyl-urea-phosphate GUP, boric acid is composite forms.The optimum compound proportion example of wood fire retardant draws through experimental study repeatedly, when FRW wood fire retardant and water-soluble ammonium polyphosphate APP are according to weight portion 75 ~ 85 parts/15 ~ 25 parts, the pinus sylvestris var. mongolica solid wood that flame-retardant impregnating process obtains, has good flame-retardant smoke inhibition effect.
Research is studied analysis by multiple experimental example to the difficult lumber flame-retardant impregnating treatment process described in the present invention:
Embodiment 1:
(1) first wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) temperature 60 ~ 70 DEG C of water, concussion frequency 20Hz are set, concussion time 30min;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) after terminating, wood sample is taken out, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) fire-retarding of wood solution is prepared, mass concentration 8 ~ 9%;
(6) timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.8 ~ 0.9MPa, maintain 10 ~ 20min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.6 ~ 0.7MPa, maintain 30min and make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating.
Embodiment 2:
(1) first wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) temperature 70 ~ 80 DEG C of water, concussion frequency 40Hz are set, concussion time 30min;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) after terminating, wood sample is taken out, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) fire-retarding of wood solution is prepared, mass concentration 9 ~ 11%;
(6) timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.9 ~ 1.0MPa, maintain 20 ~ 30min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.7 ~ 0.8MPa, maintain 30min and make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating.
Embodiment 3:
(1) first wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) temperature 70 ~ 80 DEG C of water, concussion frequency 40Hz are set, concussion time 60min;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) after terminating, wood sample is taken out, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) fire-retarding of wood solution is prepared, mass concentration 13 ~ 16%;
(6) timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.9 ~ 1.0MPa, maintain 20 ~ 30min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.9 ~ 1.0MPa, maintain 40 ~ 60min and make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating.
Embodiment 4:
(1) first wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) temperature 60 ~ 70 DEG C of water, concussion frequency 20Hz are set, concussion time 60min;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) after terminating, wood sample is taken out, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) fire-retarding of wood solution is prepared, mass concentration 12 ~ 14%;
(6) timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.8 ~ 0.9MPa, maintain 20 ~ 30min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.9 ~ 1.0MPa, maintain 30 ~ 60min and make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes the process of pinus sylvestris var. mongolica lumber flame-retardant impregnating.
The pinus sylvestris var. mongolica timber carrying drug ratio of above embodiment flame treatment is as shown in table 1:
Table 1 pinus sylvestris var. mongolica timber carrying drug ratio
Above-mentioned four embodiments are tested according to flame-retardant impregnating treatment process of the present invention, the fire-retardant pinus sylvestris var. mongolica timber carrying drug ratio obtained and the pinus sylvestris var. mongolica wood sample not using supersonic oscillations, carrying drug ratio brings up to 9.60%, 9.76%, 9.91%, 10.13% by 7.19%, population mean carrying drug ratio 9.85%.
Claims (7)
1. a difficult pine class solid wood flame-retardant impregnating treatment process, is characterized in that described technique concrete steps are as follows:
(1) pine class wood sample is put into numerical control supersonic oscillator, make it be immersed in below the water surface;
(2) arrange that water temperature is 60 ~ 80 DEG C, concussion frequency is 20 ~ 40Hz, the concussion time is 30 ~ 60min;
(3) open ultrasonic oscillator, carry out supersonic oscillations;
(4) wood sample takes out after terminating by supersonic oscillations, dry 24 ~ 48h in the hothouse of 60 ~ 70 DEG C;
(5) fire-retarding of wood solution is prepared, described fire-retarding of wood solution is mixed by wood fire retardant and water, the mass concentration of wood fire retardant is 8 ~ 16%, described wood fire retardant is formed according to the ratio of weight portion 75 ~ 85 parts/15 ~ 25 parts is composite by FRW wood fire retardant and water-soluble ammonium polyphosphate APP, and FRW wood fire retardant is by guanyl-urea-phosphate GUP and boric acid is composite forms;
(6) dried timber is put into vacuum pressing impregnation tank, open vacuum extractor, vacuumize the negative pressure making impregnating autoclave form 0.08 ~ 0.10MPa, maintain 10 ~ 30min;
(7) fire-retarding of wood solution is injected tank under impregnating autoclave negative pressure state, and be forced into 0.6 ~ 1.0MPa, maintain 30 ~ 60min, make fire resistant fluid immerse the enough depths of timber;
(8) by immersion can release, the timber impregnated is taken out;
(9) send in hothouse by the timber impregnated, in the hothouse of 60 ~ 70 DEG C, dry 24 ~ 48h, namely completes lumber flame-retardant impregnating process.
2. difficult pine class solid wood flame-retardant impregnating treatment process according to claim 1, is characterized in that described timber is pinus sylvestris var. mongolica.
3. difficult pine class solid wood flame-retardant impregnating treatment process according to claim 1, is characterized in that the mass concentration of described wood fire retardant is 8 ~ 9%.
4. difficult pine class solid wood flame-retardant impregnating treatment process according to claim 1, is characterized in that the mass concentration of described wood fire retardant is 9 ~ 11%.
5. difficult pine class solid wood flame-retardant impregnating treatment process according to claim 1, is characterized in that the mass concentration of described wood fire retardant is 12 ~ 14%.
6. difficult pine class solid wood flame-retardant impregnating treatment process according to claim 1, is characterized in that the mass concentration of described wood fire retardant is 13 ~ 16%.
7. difficult pine class solid wood flame-retardant impregnating treatment process according to claim 1, is characterized in that described water-soluble poly ammonium phosphate polymerization degree n≤20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424701.3A CN103481343B (en) | 2013-09-17 | 2013-09-17 | A kind of difficult pine class solid wood flame-retardant impregnating treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424701.3A CN103481343B (en) | 2013-09-17 | 2013-09-17 | A kind of difficult pine class solid wood flame-retardant impregnating treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481343A CN103481343A (en) | 2014-01-01 |
| CN103481343B true CN103481343B (en) | 2016-03-30 |
Family
ID=49822109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310424701.3A Expired - Fee Related CN103481343B (en) | 2013-09-17 | 2013-09-17 | A kind of difficult pine class solid wood flame-retardant impregnating treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103481343B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369243B (en) * | 2014-12-12 | 2016-07-06 | 北京林业大学 | A kind of method of ultrasonic assistant wood veneer dyeing |
| CN114274290A (en) * | 2021-12-30 | 2022-04-05 | 福建省顺昌县升升木业有限公司 | Wood flame-retardant treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56144104A (en) * | 1980-04-12 | 1981-11-10 | Matsushita Electric Works Ltd | Method of defatting wood |
| DE10107501A1 (en) * | 2001-02-15 | 2002-08-29 | Ihd Inst Fuer Holztechnologie | Impregnating wood and other lignocellulosic materials comprises using an aqueous enzyme solution and ultrasonicating |
| CN1398704A (en) * | 2002-06-25 | 2003-02-26 | 广西三奇工贸有限责任公司 | Pollution-free pine timber modifying method and composition |
| CN1424185A (en) * | 2002-12-13 | 2003-06-18 | 陕西理工学院 | Wood fire-retardant treating technology |
| CN103158181A (en) * | 2013-02-25 | 2013-06-19 | 东北林业大学 | Multifunctional wood inflaming retarding agent and method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of multifunctional wood inflaming retarding agent |
-
2013
- 2013-09-17 CN CN201310424701.3A patent/CN103481343B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56144104A (en) * | 1980-04-12 | 1981-11-10 | Matsushita Electric Works Ltd | Method of defatting wood |
| DE10107501A1 (en) * | 2001-02-15 | 2002-08-29 | Ihd Inst Fuer Holztechnologie | Impregnating wood and other lignocellulosic materials comprises using an aqueous enzyme solution and ultrasonicating |
| CN1398704A (en) * | 2002-06-25 | 2003-02-26 | 广西三奇工贸有限责任公司 | Pollution-free pine timber modifying method and composition |
| CN1424185A (en) * | 2002-12-13 | 2003-06-18 | 陕西理工学院 | Wood fire-retardant treating technology |
| CN103158181A (en) * | 2013-02-25 | 2013-06-19 | 东北林业大学 | Multifunctional wood inflaming retarding agent and method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of multifunctional wood inflaming retarding agent |
Non-Patent Citations (1)
| Title |
|---|
| 木材液体渗透性的改善方法;郑昕等;《林业机械与木工设备》;20081130;第36卷(第11期);第33-35页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103481343A (en) | 2014-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102555005B (en) | Flame-retardant solid wood section, flame-retardant solid wood floor and production method of flame-retardant solid wood section | |
| CN104760103B (en) | A kind of APP/SiO2composite aerogel type flame-retardant reinforced wood material and preparation method thereof | |
| CN102794806B (en) | Manufacturing method for anti-flaming wooden louver blade | |
| CN103240780A (en) | Method for improving carbonized wood property by silica sol impregnation pretreatment | |
| CN104647495B (en) | A kind of function modified method of rubber wood timber | |
| CN103158181A (en) | Multifunctional wood inflaming retarding agent and method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of multifunctional wood inflaming retarding agent | |
| CN104416635A (en) | Pretreatment device for improving wood impregnation efficiency and wood impregnation treatment method | |
| CN101602214A (en) | A kind of preparation method of fire retardant modification timber | |
| CN103203785A (en) | Drying defect reduction and flame-retardant treatment method for eucalyptus | |
| CN102528878A (en) | Production method for fireproof and waterproof carbonized woods | |
| CN105835193B (en) | A kind of minimally invasive device of wood surface and wood surface processing method | |
| CN103481343B (en) | A kind of difficult pine class solid wood flame-retardant impregnating treatment process | |
| Rejeesh et al. | Methods and materials for reducing flammability behaviour of coir fibre based composite boards: a review | |
| CN103009449B (en) | A kind of fire-retardant compression solid wood material and production method thereof | |
| KR102144100B1 (en) | Preservative treated woods and method for manufacturing the same | |
| CN104924388B (en) | Wood modification working liquid used for wet plate processing and use method thereof | |
| CN104647537A (en) | Multiple-effect timber fire retardant and its preparation method and treatment process | |
| CN103358371B (en) | A kind of self-assembly in wood generates the method for mesopore molecular sieve | |
| CN109227867A (en) | A kind of preparation method of the mould proof composite fibre plate of environment-friendly type antibiotic | |
| Saliman et al. | Hydrothermal treatment of oil palm wood: Effect of treatment variables on dimensional stability using response surface methodology | |
| CN103009448A (en) | Surface flame retardation reinforced solid wood and manufacturing method thereof | |
| CN102259362A (en) | Flame-retardant bamboo board and preparation method thereof | |
| CN104669378A (en) | Composite type wood fire retardant and preparation method and application thereof | |
| CN110116444A (en) | A kind of China fir anti-corrosion modification agent and preparation method thereof and construction technology | |
| CN104858954A (en) | Loss-resistant flame retardant anticorrosive wood production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 |