CN108724387A - One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent - Google Patents
One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent Download PDFInfo
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- CN108724387A CN108724387A CN201810385692.4A CN201810385692A CN108724387A CN 108724387 A CN108724387 A CN 108724387A CN 201810385692 A CN201810385692 A CN 201810385692A CN 108724387 A CN108724387 A CN 108724387A
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- chinese white
- corrosion
- white poplar
- plank
- coupling agent
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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
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- 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
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to plank processing technology fields, and in particular to one kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, and preparation method includes preparing raw material, prepares modified chitosan copper and matches object, prepares mitigation solution and prepare anti-corrosion reagent.The present invention has the following advantages compared with prior art：By dimethylformamide and a concentration of 4-4.5mol/L hydroxycarboxylic acids aqueous solution coordinate system for modified chitosan copper coordination compound in the present invention, anti-corrosion reagent chemical stability can be improved by precipitated silica mixed solution, antiseptic property of the anti-corrosion reagent to Chinese white poplar plank whiterot fungi can be improved simultaneously, it is with obvious effects to the anti-white rot of masson pine, agent prescription is to development environment close friend, it can be effectively improved control effect to Chinese white poplar plank and other wood-decaying fungus and leach resistance and permeance property, and then extend the use scope and service life of plank.
Description
Technical field
The invention belongs to plank processing technology fields, and in particular to one kind is tried for Chinese white poplar plank whiterot fungi corrosion-resistant
Agent.
Background technology
Chinese white poplar is adaptable, widely distributed, has that material is good, growth is fast, long lifespan, more drought-resistant, timber white,
Texture is straight, and fiber content is high, easily dry, and easy processing, paint and bonding capacity are good, can build, furniture, boxboard and splint,
The natural corrosion resistance of the material such as papermaking, Chinese white poplar is very poor, after rotten 12 weeks, test specimen caused by as Corilus versicolor Quel. effect
Mass loss rate reaches 63.86%, and according to the grade scale of the natural corrosion resistance of timber, Chinese white poplar belongs to intolerant to rotten seeds, point
Chinese white poplar timber is not carried out with the mixture of chitosan copper coordination compound, chitosan-zn complex and chitosan metal complexes
Processing, the mixture of chitosan metal complexes are substantially better than chitosan-zn complex, phase to Chinese white poplar the preservation of timber against decay performance
It improves than chitosan copper coordination compound, but improves unobvious, when compound drug mass fraction is 1.5%（Copper ion is kept
Rate amount is 0.5061kg/m3, zinc ion maintenance dose 0.5117kg/m3）, test specimen mass loss rate is 8.56%, reaches most corrosion resistant etc.
Grade, wherein zinc ion content addition is more, and effect unobvious exist simultaneously the problem of keeping quality difference, therefore, to Chinese white poplar plate
The corrosion resistant processing further research of material.
Invention content
The purpose of the present invention is being directed to existing Chinese white poplar wood white rot fungi anti-corrosion, provide a kind of for Chinese white poplar
Plank whiterot fungi corrosion-resistant reagent.
The present invention is achieved by the following technical solutions：One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent,
Preparation method includes the following steps：
（1）Prepare raw material by following weight proportion：10 parts of chitosan, a concentration of 4-4.5mol/L hydroxycarboxylic acids aqueous solution 26-32
Part, 0.8-1.6 parts of dimethylformamide, 8-12 parts of copper chloride dihydrate, 6-8 parts of precipitated silica, 1-2 parts of salicylic acid, three silica
0.02-0.08 parts of alkane surfactant, 0.01-0.03 parts of the silane coupling agent containing sulfydryl；
（2）In water by chitosan, copper chloride dihydrate, a concentration of 4-4.5mol/L hydroxycarboxylic acids aqueous solution, dimethylformamide
Then ultrasonic dissolution is heated to 60-70 DEG C, after being stirred to react 1-1.5 hours, mixed solution pH value is adjusted with sodium hydroxide
For 5.4-5.8, continue insulation reaction 20-30 minutes, is rinsed after the completion to neutrality, then ultrafiltration, then in 55-65 with deionized water
It is spray-dried under conditions of DEG C, obtains modified chitosan copper coordination compound；
（3）Precipitated silica, salicylic acid, trisiloxane surfactant, the silane coupling agent addition containing sulfydryl are equivalent to it
In the water of precipitated silica 80-100 times of weight, in 45-50 DEG C of condition of temperature, with 6000-8000 revs/min of stirring 10-20
Minute, obtain mixed solution；
（4）Modified chitosan copper coordination compound is fully dissolved in the water for being equivalent to 60-70 times of its weight, then low whipping speed
For mixed solution is added under 200-600 revs/min of rotating speed, be kept stirring at 40-50 DEG C after liquid feeding 1 hour to get.
As further improvement of these options, the BET specific surface area of the precipitated silica is 180 ~ 215m2/g,
DBP absorption values are 165 ~ 200g/100g.
As further improvement of these options, the step（2）The condition of middle spray drying is that feeding temperature is
135-145 DEG C, sample introduction flow velocity is 22mL/min, and air mass flow is air pressure 0.3MPa, and drop temperature is controlled at 65-85 DEG C；It is described
The grain size of modified chitosan copper coordination compound is 350-400 mesh.
As further improvement of these options, the silane coupling agent containing sulfydryl is that sulfydryl trimethoxy silane is even
Join agent, sulfydryl triethoxysilane coupling agent, sulfydryl-methoxyl group diethoxy silane coupling agent or sulfydryl dimethoxy-ethoxy
Any one in base silane coupling agent；The hydroxycarboxylic acid is oneself three acid, septichen, hydroxyl of 2- hydroxyls -1,2,3-
Arbitrary two kinds in acetic acid, 2 hydroxy propanoic acid are with weight ratio 2:1 mixing.
The present invention has the following advantages compared with prior art：Pass through dimethylformamide and a concentration of 4- in the present invention
4.5mol/L hydroxycarboxylic acid aqueous solution coordinate systems can be improved for modified chitosan copper coordination compound by precipitated silica mixed solution
Anti-corrosion reagent chemical stability, while antiseptic property of the anti-corrosion reagent to Chinese white poplar plank whiterot fungi can be improved, it is anti-to masson pine
White rot is with obvious effects, and agent prescription can be effectively improved to Chinese white poplar plank and other wood-decaying fungus development environment close friend
Control effect and leach resistance and permeance property, and then extend the use scope and service life of plank.
Specific implementation mode
Embodiment 1
One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, and preparation method includes the following steps：
（1）Prepare raw material by following weight proportion：10 parts of chitosan, a concentration of 29 parts of 4.2mol/L hydroxycarboxylic acids aqueous solution, two
1.2 parts of methylformamide, 10 parts of copper chloride dihydrate, 7 parts of precipitated silica, 1.5 parts of salicylic acid, trisiloxane surfactant
0.05 part, 0.02 part of the silane coupling agent containing sulfydryl；
（2）Chitosan, copper chloride dihydrate, a concentration of 4.2mol/L hydroxycarboxylic acids aqueous solution, dimethylformamide are surpassed in water
Sound dissolves, and is then heated to 65 DEG C, and after being stirred to react 1.2 hours, it is 5.6 to adjust mixed solution pH value with sodium hydroxide,
Continue insulation reaction 25 minutes, rinsed after the completion to neutrality, then ultrafiltration with deionized water, is then sprayed under conditions of 60 DEG C dry
It is dry, obtain modified chitosan copper coordination compound；
（3）Precipitated silica, salicylic acid, trisiloxane surfactant, the silane coupling agent addition containing sulfydryl are equivalent to it
In the water of 90 times of weight of precipitated silica, in 48 DEG C of condition of temperature, is stirred 15 minutes with 7000 revs/min, obtain mixing molten
Liquid；
（4）Modified chitosan copper coordination compound is fully dissolved in the water for being equivalent to 65 times of its weight, then low whipping speed is
Mixed solution is added under 400 revs/min of rotating speed, be kept stirring at 45 DEG C after liquid feeding 1 hour to get.
Wherein, the BET specific surface area of the precipitated silica is 180 ~ 215m2/g, and DBP absorption values are 165 ~ 200g/
100g；The step（2）The condition of middle spray drying is that feeding temperature is 140 DEG C, and sample introduction flow velocity is 22mL/min, air mass flow
For air pressure 0.3MPa, drop temperature is controlled at 75 DEG C；The grain size of the modified chitosan copper coordination compound is 380 mesh；It is described to contain mercapto
The silane coupling agent of base is sulfydryl trimethoxysilane coupling agent；The hydroxycarboxylic acid be 2- hydroxyls -1,2,3- oneself three acid and 2-
Hydracrylic acid is with weight ratio 2:1 mixing.
Embodiment 2
One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, and preparation method includes the following steps：
（1）Prepare raw material by following weight proportion：10 parts of chitosan, a concentration of 32 parts of 4mol/L hydroxycarboxylic acids aqueous solution, diformazan
0.8 part of base formamide, 12 parts of copper chloride dihydrate, 6 parts of precipitated silica, 2 parts of salicylic acid, trisiloxane surfactant 0.02
Part, 0.03 part of the silane coupling agent containing sulfydryl；
（2）Chitosan, copper chloride dihydrate, a concentration of 4.5mol/L hydroxycarboxylic acids aqueous solution, dimethylformamide are surpassed in water
Sound dissolves, and is then heated to 70 DEG C, and after being stirred to react 1.5 hours, it is 5.4 to adjust mixed solution pH value with sodium hydroxide,
Continue insulation reaction 30 minutes, rinsed after the completion to neutrality, then ultrafiltration with deionized water, is then sprayed under conditions of 65 DEG C dry
It is dry, obtain modified chitosan copper coordination compound；
（3）Precipitated silica, salicylic acid, trisiloxane surfactant, the silane coupling agent addition containing sulfydryl are equivalent to it
In the water of 100 times of weight of precipitated silica, in the condition of temperature 50 C, is stirred 20 minutes with 8000 revs/min, obtain mixing molten
Liquid；
（4）Modified chitosan copper coordination compound is fully dissolved in the water for being equivalent to 70 times of its weight, then low whipping speed is
Mixed solution is added under 600 revs/min of rotating speed, be kept stirring at 50 DEG C after liquid feeding 1 hour to get.
Wherein, the BET specific surface area of the precipitated silica is 180 ~ 215m2/g, and DBP absorption values are 165 ~ 200g/
100g；The step（2）The condition of middle spray drying is that feeding temperature is 145 DEG C, and sample introduction flow velocity is 22mL/min, air mass flow
For air pressure 0.3MPa, drop temperature is controlled at 65 DEG C；The grain size of the modified chitosan copper coordination compound is 400 mesh；It is described to contain mercapto
The silane coupling agent of base is sulfydryl-methoxyl group diethoxy silane coupling agent；The hydroxycarboxylic acid is septichen and 2-
Hydracrylic acid is with weight ratio 2:1 mixing.
Embodiment 3
One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, and preparation method includes the following steps：
（1）Prepare raw material by following weight proportion：10 parts of chitosan, a concentration of 26 parts of 4.5mol/L hydroxycarboxylic acids aqueous solution, two
1.6 parts of methylformamide, 8 parts of copper chloride dihydrate, 8 parts of precipitated silica, 1 part of salicylic acid, trisiloxane surfactant 0.08
Part, 0.01 part of the silane coupling agent containing sulfydryl；
（2）Chitosan, copper chloride dihydrate, a concentration of 4mol/L hydroxycarboxylic acids aqueous solution, dimethylformamide is ultrasonic in water
Dissolving, is then heated to 60 DEG C, and after being stirred to react 1 hour, it is 5.8 to adjust mixed solution pH value with sodium hydroxide, is continued
Insulation reaction 20 minutes is rinsed with deionized water to neutrality, then ultrafiltration after the completion, is then spray-dried under conditions of 55 DEG C,
Obtain modified chitosan copper coordination compound；
（3）Precipitated silica, salicylic acid, trisiloxane surfactant, the silane coupling agent addition containing sulfydryl are equivalent to it
In the water of 80 times of weight of precipitated silica, in the condition of temperature 45 C, is stirred 10 minutes with 6000 revs/min, obtain mixing molten
Liquid；
（4）Modified chitosan copper coordination compound is fully dissolved in the water for being equivalent to 60 times of its weight, then low whipping speed is
Mixed solution is added under 200 revs/min of rotating speed, be kept stirring at 40 DEG C after liquid feeding 1 hour to get.
Wherein, the BET specific surface area of the precipitated silica is 180 ~ 215m2/g, and DBP absorption values are 165 ~ 200g/
100g；The step（2）The condition of middle spray drying is that feeding temperature is 135 DEG C, and sample introduction flow velocity is 22mL/min, air mass flow
For air pressure 0.3MPa, drop temperature is controlled at 85 DEG C；The grain size of the modified chitosan copper coordination compound is 350 mesh；It is described to contain mercapto
The silane coupling agent of base is sulfydryl triethoxysilane coupling agent；The hydroxycarboxylic acid is hydroxyacetic acid, 2 hydroxy propanoic acid with weight
Measure ratio 2:1 mixing.
Control group 1 is set, by step in embodiment 1（2）Remove, by step（4）Middle modified chitosan copper coordination compound is replaced
The chitosan-metal copper complex for being 9.6% for copper ion mass fraction, remaining content are constant；Control group 2 is set, by embodiment 1
Middle step（3）Remove, accordingly by step（4）Middle mixed solution removes, remaining content is constant；Control group 3 is set, by embodiment
The silane coupling agent without sulfydryl is replaced in 1, remaining content is constant；Control group 4 is set, according to existing method compound drug matter
It is 1.5% to measure score, and copper ion conservation rate amount is 0.5061kg/m3, zinc ion maintenance dose 0.5117kg/m3；Blank group is set,
It is handled without anti-corrosion reagent.
Each group prepares wood sample, is derived from a diameter of 30 ± 3cm, the Chinese white poplar without visual defects, cross section sapwood is uniform
At distribution, size 20mm × 20mm × 10mm（Grain direction）, 8 pieces of wood samples of every group of setting, every group is divided into An groups and Bn
Group, An groups and Bn groups are only used for distinguishing whether anti-corrosion reagent is handled under illumination condition, and are not specific to fixed group；An groups select bacterium
Kind is Corilus versicolor Quel., with reference to LY/T 1283-1998《Timber preservative is to rot fungi toxicity test room test method》It carries out,
It is I grades of most corrosion resistants, the mass loss rate after detection each group is rotten when wood sample mass loss rate is 0-10%；Bn groups will be each
Group anti-corrosion reagent is in the same terms：Simultaneously under the conditions of 100 lux illumination, 30 centimetres of distance treatment with irradiation 72 hours, complete
Afterwards, the mass loss rate with reference to above method detection each group after rotten, obtains following result：
Table 1
| Group | An group mass loss rates（%） | Bn group mass loss rates（%） |
| Embodiment 1 | 6.28 | 6.73 |
| Embodiment 2 | 6.35 | 6.81 |
| Embodiment 3 | 6.32 | 6.76 |
| Control group 1 | 6.85 | 7.69 |
| Control group 2 | 7.06 | 9.13 |
| Control group 3 | 6.62 | 7.36 |
| Control group 4 | 8.56 | 10.92 |
| Blank group | 63.86 | / |
It can be seen that in the present invention that 4 loss lates are substantially reduced compared to the control group by data in table 1, and conservation rate is preferable, passes through
3 Comprehensive Correlation of control group 1, control group 2 and control group show that property and mixed solution of the chitosan copper with object are equal to its loss late
There are certain influence, mixed solution larger to the stability influence of anti-corrosion reagent.
Claims (6)
1. one kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, which is characterized in that preparation method includes the following steps：
（1）Prepare raw material by following weight proportion：10 parts of chitosan, a concentration of 4-4.5mol/L hydroxycarboxylic acids aqueous solution 26-32
Part, 0.8-1.6 parts of dimethylformamide, 8-12 parts of copper chloride dihydrate, 6-8 parts of precipitated silica, 1-2 parts of salicylic acid, three silica
0.02-0.08 parts of alkane surfactant, 0.01-0.03 parts of the silane coupling agent containing sulfydryl；
（2）In water by chitosan, copper chloride dihydrate, a concentration of 4-4.5mol/L hydroxycarboxylic acids aqueous solution, dimethylformamide
Then ultrasonic dissolution is heated to 60-70 DEG C, after being stirred to react 1-1.5 hours, mixed solution pH value is adjusted with sodium hydroxide
For 5.4-5.8, continue insulation reaction 20-30 minutes, is rinsed after the completion to neutrality, then ultrafiltration, then in 55-65 with deionized water
It is spray-dried under conditions of DEG C, obtains modified chitosan copper coordination compound；
（3）Precipitated silica, salicylic acid, trisiloxane surfactant, the silane coupling agent addition containing sulfydryl are equivalent to it
In the water of precipitated silica 80-100 times of weight, in 45-50 DEG C of condition of temperature, with 6000-8000 revs/min of stirring 10-20
Minute, obtain mixed solution；
（4）Modified chitosan copper coordination compound is fully dissolved in the water for being equivalent to 60-70 times of its weight, then low whipping speed
For mixed solution is added under 200-600 revs/min of rotating speed, be kept stirring at 40-50 DEG C after liquid feeding 1 hour to get.
2. a kind of as described in claim 1 be used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, which is characterized in that the precipitation is white
The BET specific surface area of carbon black is 180 ~ 215m2/g, and DBP absorption values are 165 ~ 200g/100g.
3. a kind of as described in claim 1 be used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, which is characterized in that the step
（2）The condition of middle spray drying is that feeding temperature is 135-145 DEG C, and sample introduction flow velocity is 22mL/min, and air mass flow is air pressure
0.3MPa, drop temperature are controlled at 65-85 DEG C.
4. a kind of as described in claim 1 be used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, which is characterized in that the modified shell
The grain size of glycan copper complex is 350-400 mesh.
5. a kind of as described in claim 1 be used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, which is characterized in that described to contain sulfydryl
Silane coupling agent be sulfydryl trimethoxysilane coupling agent, sulfydryl triethoxysilane coupling agent, sulfydryl-methoxyl group diethoxy
Any one in base silane coupling agent or sulfydryl Dimethoxy-ethoxy silane coupling agent.
6. a kind of as described in claim 1 be used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent, which is characterized in that the hydroxyl carboxylic
Acid is arbitrary two kinds in 2- hydroxyls -1,2,3- oneself three acid, septichen, hydroxyacetic acid, 2 hydroxy propanoic acid with weight ratio
2:1 mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385692.4A CN108724387A (en) | 2018-04-26 | 2018-04-26 | One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385692.4A CN108724387A (en) | 2018-04-26 | 2018-04-26 | One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108724387A true CN108724387A (en) | 2018-11-02 |
Family
ID=63939294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810385692.4A Withdrawn CN108724387A (en) | 2018-04-26 | 2018-04-26 | One kind being used for Chinese white poplar plank whiterot fungi corrosion-resistant reagent |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037687A (en) * | 2019-12-17 | 2020-04-21 | 安徽唯码数据科技有限公司 | Anti-corrosion treatment process for wood plate for home decoration |
| CN111730711A (en) * | 2020-07-13 | 2020-10-02 | 福建省竹家缘工贸有限公司 | Bamboo board carbonizing process and equipment thereof |
-
2018
- 2018-04-26 CN CN201810385692.4A patent/CN108724387A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037687A (en) * | 2019-12-17 | 2020-04-21 | 安徽唯码数据科技有限公司 | Anti-corrosion treatment process for wood plate for home decoration |
| CN111730711A (en) * | 2020-07-13 | 2020-10-02 | 福建省竹家缘工贸有限公司 | Bamboo board carbonizing process and equipment thereof |
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Application publication date: 20181102 |