CN107471364B - A kind of preparation method of Mothproof veneer board - Google Patents

A kind of preparation method of Mothproof veneer board Download PDF

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Publication number
CN107471364B
CN107471364B CN201710716600.1A CN201710716600A CN107471364B CN 107471364 B CN107471364 B CN 107471364B CN 201710716600 A CN201710716600 A CN 201710716600A CN 107471364 B CN107471364 B CN 107471364B
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Prior art keywords
veneer
insect
adhesive
prevention treatment
treatment
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CN201710716600.1A
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CN107471364A (en
Inventor
刘凯
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Rongan Huarong Wood Industry Co ltd
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Rongan Huarong Wood Industry Co Ltd
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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
    • 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
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • 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
    • B27K3/16—Inorganic 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
    • 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
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • 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
    • B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
    • B27K5/0065—Ultrasonic treatment
    • 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
    • B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The invention belongs to glued board processing technique fields, more particularly to a kind of preparation method of Mothproof veneer board, including veneer insect-prevention treatment and adhesive insect-prevention treatment, wherein veneer insect-prevention treatment includes that treatment fluid dipping and acid treated paulownia wood are stifling, and the insect-prevention treatment mode of adhesive is that the composite particles with vermins-proof effect are added in adhesive.The present invention has the advantage that glued board prepared by the present invention can resist termite and rot fungi well compared with prior art, moreover it is possible to improve the corrosion resistance of veneer, vermins-proof effect persistence is good, extends the service life of glued board.

Description

A kind of preparation method of Mothproof veneer board
Technical field
The invention belongs to glued board processing technique fields, and in particular to a kind of preparation method of Mothproof veneer board.
Background technique
Glued board is an important board kind in wood-based plate, and since glued board has, deformation is small, breadth is big, construction is inconvenient, no Easy warpage, the features such as tensile strength perpendicular to grain is big, obtain extensively in furniture, compartment, shipbuilding, military project, packaging and other industrial departments Using, but since glued board is a kind of wood materials, easily by bacterium, worm, the raw drilling worm invasion in sea, it is easy to rot, so common glue The corrosion resistance of plywood is not high, and pest-resistant performance is poor, is restricted in use, therefore, carries out preservative treatment right and wrong to glued board It is often necessary, with constantly improve for glued board processing technology, chemical agent is generallyd use in the prior art, glued board is carried out Preservative treatment plays antisepsis although infringement of the microorganism to timber can be effectively prevented, these preservatives are to environment Safety and health of human body have a certain impact, and the use of part material is gradually restricted or forbids, therefore low toxicity is efficient simultaneously It is to need the technical issues of researching and solving at present that antisepsis, which can be played, to glued board.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of preparation method of Mothproof veneer board is provided.
The present invention is achieved by the following technical solutions: a kind of preparation method of Mothproof veneer board, including veneer insect prevention Processing and adhesive insect-prevention treatment, the veneer with a thickness of 0.6-2mm, water content 10-12%, the side of veneer insect-prevention treatment Method are as follows: veneer is immersed in treatment fluid, includes 2-4g hydrogen peroxide, 0.7-1.5g fraxinellone in every 100ml treatment fluid, in vacuum condition Then lower dipping 1.5-2 hours is forced into 0.6-0.8MPa and is kept for 30-40 minutes, taking out drying to water content is 5-8%, then Handle 25-30 minute in stifling drying oven, fumigates in drying oven sootiness material as sour treated paulownia wood；
The insect-prevention treatment mode of the adhesive is that the composite particles for being equivalent to its weight 4-7% are added in adhesive, institute State composite particles the preparation method comprises the following steps: fraxinellone, carbon nanotube and polyvinyl alcohol are mixed with weight ratio 5:9:1, then will mixing Material ultrasonic disperse in the ethanol solution that the mass concentration for being equivalent to 3 times of its weight is 40-50% is 450-500 DEG C in temperature Under conditions of be spray-dried, it is composite particles that obtain partial size, which be 10-50 μm of powder,.
As further improvement of these options, the vacuum condition is that vacuum degree reaches -0.04 ~ -0.12MPa.
As further improvement of these options, the drying condition is that temperature is 60-80 DEG C, relative humidity 90- 95%。
As further improvement of these options, acid treated the paulownia wood volume is not more than 1.8cm3；Processing Method is to be dried to paulownia wood after water content is 15% or less, in the sulfuric acid solution that mass concentration is 8-10% in ultrasonic oscillation Under conditions of handle 6-8 minutes, be rinsed with water after the completion 10 minutes, be dried to water content be 6-8%.
As further improvement of these options, the treatment conditions of the stifling drying oven are as follows: furnace pressure 0.14- 0.18MPa, vapor (steam) temperature are 140-160 DEG C.
As further improvement of these options, the adhesive is by phenolic resin and flour with weight ratio 7:2-3 group At.
The present invention has the advantage that in the present invention veneer through treatment fluid under negative pressure to pressurized conditions compared with prior art Processing, can be such that insect-prevention treatment liquid is effectively immersed in veneer, then by acid treated paulownia wood suffocating treatment, can make veneer surface Wood fibre structure changes, and when by multilayer single plate adhesive hot-press gluing, adhesive intermediate ion and veneer ion can be made abundant It engages and puts to good use, prevent the loss of insect-prevention treatment liquid in veneer in use process, composite particles can be uniformly dispersed in viscose In agent, termite and rot fungi can be resisted well, moreover it is possible to improve the corrosion resistance of veneer, vermins-proof effect persistence is good, extends The service life of glued board.
Specific embodiment
Embodiment 1
A kind of preparation method of Mothproof veneer board, including veneer insect-prevention treatment and adhesive insect-prevention treatment, the veneer With a thickness of 1.2mm, water content 11%；
The method of veneer insect-prevention treatment are as follows: will veneer immerse treatment fluid in, in every 100ml treatment fluid comprising 3g hydrogen peroxide, 1.2g fraxinellone impregnates 1.8 hours under vacuum conditions, is then forced into 0.7MPa and is kept for 35 minutes, takes out dry to water content It is 6%, then handle 28 minutes in stifling drying oven, fumigating sootiness material in drying oven is sour treated paulownia wood；
The insect-prevention treatment mode of the adhesive is that the composite particles for being equivalent to its weight 6% are added in adhesive, described Composite particles the preparation method comprises the following steps: Jiang fraxinellone, carbon nanotube and polyvinyl alcohol with weight ratio 5:9:1 mix, then by mixture The ultrasonic disperse in the ethanol solution that the mass concentration for being equivalent to 3 times of its weight is 45% is expected, under conditions of temperature is 480 DEG C Spray drying, obtaining the powder that partial size is 10-50 μm is composite particles.
Wherein, the vacuum condition is that vacuum degree reaches -0.08MPa；The drying condition is that temperature is 70 DEG C, relatively wet Degree is 92%；The adhesive is made of phenolic resin and flour with weight ratio 7:2.
Wherein, acid treated the paulownia wood volume is not more than 1.8cm3；Processing method is to be dried to paulownia wood to contain After water is 15% or less, processing 6 minutes under conditions of the sulfuric acid solution that mass concentration is 9% is in ultrasonic oscillation, after the completion It is rinsed with water 10 minutes, being dried to water content is 7%.
Wherein, the treatment conditions of the stifling drying oven are as follows: furnace pressure 0.16MPa, vapor (steam) temperature are 150 DEG C.
Embodiment 2
A kind of preparation method of Mothproof veneer board, including veneer insect-prevention treatment and adhesive insect-prevention treatment, the veneer With a thickness of 1.2mm, water content 10%；
The method of veneer insect-prevention treatment are as follows: will veneer immerse treatment fluid in, in every 100ml treatment fluid comprising 2g hydrogen peroxide, 1.5g fraxinellone impregnates 1.5 hours under vacuum conditions, is then forced into 0.6MPa and is kept for 30 minutes, takes out dry to water content It is 5%, then handle 25 minutes in stifling drying oven, fumigating sootiness material in drying oven is sour treated paulownia wood；
The insect-prevention treatment mode of the adhesive is that the composite particles for being equivalent to its weight 4% are added in adhesive, described Composite particles the preparation method comprises the following steps: Jiang fraxinellone, carbon nanotube and polyvinyl alcohol with weight ratio 5:9:1 mix, then by mixture The ultrasonic disperse in the ethanol solution that the mass concentration for being equivalent to 3 times of its weight is 40% is expected, under conditions of temperature is 450 DEG C Spray drying, obtaining the powder that partial size is 10-50 μm is composite particles.
Wherein, the vacuum condition is that vacuum degree reaches -0.04MPa；The drying condition is that temperature is 60 DEG C, relatively wet Degree is 95%；The adhesive is made of phenolic resin and flour with weight ratio 7:2.
Wherein, acid treated the paulownia wood volume is not more than 1.8cm3；Processing method is to be dried to paulownia wood to contain After water is 15% or less, processing 6 minutes under conditions of the sulfuric acid solution that mass concentration is 8% is in ultrasonic oscillation, after the completion It is rinsed with water 10 minutes, being dried to water content is 6%.
Wherein, the treatment conditions of the stifling drying oven are as follows: furnace pressure 0.18MPa, vapor (steam) temperature are 140 DEG C.
Embodiment 3
A kind of preparation method of Mothproof veneer board, including veneer insect-prevention treatment and adhesive insect-prevention treatment, the veneer With a thickness of 1.2mm, water content 12%；
The method of veneer insect-prevention treatment are as follows: will veneer immerse treatment fluid in, in every 100ml treatment fluid comprising 4g hydrogen peroxide, 0.7g fraxinellone impregnates 2 hours under vacuum conditions, is then forced into 0.8MPa and is kept for 40 minutes, takes out drying to water content and is 8%, then handle 30 minutes in stifling drying oven, fumigating sootiness material in drying oven is sour treated paulownia wood；
The insect-prevention treatment mode of the adhesive is that the composite particles for being equivalent to its weight 7% are added in adhesive, described Composite particles the preparation method comprises the following steps: Jiang fraxinellone, carbon nanotube and polyvinyl alcohol with weight ratio 5:9:1 mix, then by mixture The ultrasonic disperse in the ethanol solution that the mass concentration for being equivalent to 3 times of its weight is 50% is expected, under conditions of temperature is 500 DEG C Spray drying, obtaining the powder that partial size is 10-50 μm is composite particles.
Wherein, the vacuum condition is that vacuum degree reaches -0.12MPa；The drying condition is that temperature is 80 DEG C, relatively wet Degree is 90%；The adhesive is made of phenolic resin and flour with weight ratio 7:3.
Wherein, acid treated the paulownia wood volume is not more than 1.8cm3；Processing method is to be dried to paulownia wood to contain After water is 15% or less, processing 8 minutes under conditions of the sulfuric acid solution that mass concentration is 10% is in ultrasonic oscillation, after the completion It is rinsed with water 10 minutes, being dried to water content is 8%.
Wherein, the treatment conditions of the stifling drying oven are as follows: furnace pressure 0.14MPa, vapor (steam) temperature are 160 DEG C.
Control group 1 is set, treatment fluid Zhong fraxinellone in embodiment 1 is removed, remaining content is constant；Control group 2 is set, it will be real The part for applying stifling drying oven processing in example 1 is removed, remaining content is constant；Control group 3 is set, sootiness material in embodiment 1 is replaced It is changed to without acid treated paulownia wood, remaining content is constant；Control group 4 is set, composite particles in embodiment 1 are replaced with Weight fraxinellone, remaining content are constant；Control group 5 is set, without the glued board of contents processing in embodiment 1；
Setting experiment, conventionally by 5 pieces of veneer hot pressing, the veneer is obtained by log through peeling, rotary-cut, respectively Plywood character is made to each group to detect, it is 10 detection averaging of income values that wherein intensity, which is bonding strength, while according to The test method detection pest of (wealth) Japanese Environment health center escapes effect and duration, that is, after being coated with 1 day, after 40 days with And the escape rate after 6 months, experimental period are on August 1st, 2016, the Close Date is on January 31st, 2017, obtains following knot Fruit:
Table 1
Group Intensity (MPa) Burst size of methanal (mg/L) Escape rate (%) after 1 day Escape rate (%) after 40 days Escape rate (%) after 6 months
Standard ≥0.70 E0≤0.5 / / /
Embodiment 1 4.28 0.04 100 91.6 78.2
Embodiment 2 4.15 0.05 100 92.4 77.5
Embodiment 3 4.23 0.03 100 91.8 77.6
Control group 1 3.76 0.04 96.8 86.3 61.2
Control group 2 3.92 0.05 90.4 79.5 54.6
Control group 3 3.85 0.04 93.5 84.6 57.2
Control group 4 3.94 0.06 94.8 85.7 59.4
Control group 5 3.46 0.05 / / /
It can be seen that method in the present invention treated that glued board vermins-proof effect is preferable by data in table 1, persistence By force, burst size of methanal is substantially unchanged, Environmental Safety, is suitable for promoting the use of.

Claims (1)

1. a kind of preparation method of Mothproof veneer board, including veneer insect-prevention treatment and adhesive insect-prevention treatment, which is characterized in that institute State veneer with a thickness of 0.6-2mm, water content 10-12%, the method for veneer insect-prevention treatment are as follows: by veneer immerse treatment fluid in, Include 2-4g hydrogen peroxide, 0.7-1.5g fraxinellone in every 100ml treatment fluid, impregnates 1.5-2 hours, then pressurize under vacuum conditions It is kept for 30-40 minutes to 0.6-0.8MPa, taking out drying to water content is 5-8%, then handles 25-30 in stifling drying oven Minute, fumigating sootiness material in drying oven is acid treated paulownia wood, treatment conditions of the stifling drying oven are as follows: in furnace Pressure is 0.14-0.18MPa, and vapor (steam) temperature is 140-160 DEG C；
The vacuum condition is that vacuum degree reaches -0.04 ~ -0.12MPa；The drying condition is that temperature is 60-80 DEG C, relatively wet Degree is 90-95%；Acid treated the paulownia wood volume is not more than 1.8cm3；Processing method is aqueous for paulownia wood to be dried to After amount is 15% or less, handles 6-8 minutes, complete under conditions of the sulfuric acid solution that mass concentration is 8-10% is in ultrasonic oscillation After be rinsed with water 10 minutes, be dried to water content be 6-8%；
The insect-prevention treatment mode of the adhesive is that the composite particles for being equivalent to its weight 4-7% are added in adhesive, described multiple Close particle the preparation method comprises the following steps: Jiang fraxinellone, carbon nanotube and polyvinyl alcohol with weight ratio 5:9:1 mix, then by mixed material The ultrasonic disperse in the ethanol solution that the mass concentration for being equivalent to 3 times of its weight is 40-50%, the item for being 450-500 DEG C in temperature It is spray-dried under part, obtaining the powder that partial size is 10-50 μm is composite particles；The adhesive by phenolic resin and flour with Weight ratio 7:2-3 composition.
CN201710716600.1A 2017-08-21 2017-08-21 A kind of preparation method of Mothproof veneer board Expired - Fee Related CN107471364B (en)

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CN108724391A (en) * 2018-03-29 2018-11-02 湖州南浔勇嘉木业有限公司 The deinsectization fumigating method of woodwork
CN113211565A (en) * 2021-03-31 2021-08-06 徐州市鸿禧木业有限公司 Insect-proof plywood and preparation process thereof
CN114932603B (en) * 2022-06-07 2023-05-12 广西亿松木业有限公司 Preparation method of insect-proof plywood

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