JPH03202A - Manufacture of modified wood - Google Patents
Manufacture of modified woodInfo
- Publication number
- JPH03202A JPH03202A JP13425089A JP13425089A JPH03202A JP H03202 A JPH03202 A JP H03202A JP 13425089 A JP13425089 A JP 13425089A JP 13425089 A JP13425089 A JP 13425089A JP H03202 A JPH03202 A JP H03202A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- treatment liquid
- methylolated
- group
- heating
- 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.)
- Pending
Links
- 239000002023 wood Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000002579 anti-swelling effect Effects 0.000 claims abstract description 8
- -1 aluminum ions Chemical class 0.000 claims abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 229910052788 barium Inorganic materials 0.000 claims abstract description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011575 calcium Substances 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011777 magnesium Substances 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 3
- 230000004048 modification Effects 0.000 claims abstract description 3
- 238000012986 modification Methods 0.000 claims abstract description 3
- VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 claims abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 21
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- 229920000877 Melamine resin Polymers 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000005470 impregnation Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 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 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
く産業上の利用分野〉
本発明は、木材の吸脱湿による寸法変化を少なくすると
共に難燃化を付加した改良木材の製法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing improved wood that reduces dimensional changes due to moisture absorption and desorption of wood and adds flame retardance.
〈従来技術〉
木材の寸法変化を少なくする方法として、合成樹脂を木
材に注入する方法、薬品による吸湿水酸基のアセチル化
、ホルマール化などが検討されてきたが、これらの方法
は木材のもつ断熱性、加工性、外観などの特性を損い、
また加工に複雑な工程と多大な処理費用を要するなどの
欠点が認められた。<Prior art> As a method to reduce dimensional changes in wood, methods such as injecting synthetic resin into wood, acetylation of moisture-absorbing hydroxyl groups using chemicals, and formalization have been investigated, but these methods do not affect the insulation properties of wood. , impairing properties such as workability and appearance,
In addition, drawbacks were recognized, such as requiring complicated processing steps and large processing costs.
また、木材の難燃化については、不溶性不燃性無機物、
例えば、リン酸成分、ホウ酸成分、ノ１０ゲン化物をそ
のｔま水に分散させ、この分散液からなる処理液を木材
中に浸透させようとしても、木材中にはほとんど水しか
浸透して行かない。また難燃性を付与する樹脂、例えば
メチロール化フェノール、メチロール化メラミン、メチ
ロール化尿素などを減圧、加圧操作下に含浸させる方法
も検討されているが、木材中のセルロースの非晶部に樹
脂が浸透しないと考えられ、離燃性は期待できなかった
。In addition, in order to make wood flame retardant, insoluble and nonflammable inorganic substances,
For example, even if you try to disperse a phosphoric acid component, a boric acid component, and a phenolic compound in water and let a treatment solution made of this dispersion penetrate into wood, only water will penetrate into the wood. I won't go. In addition, a method of impregnating resins that impart flame retardancy, such as methylolated phenol, methylolated melamine, and methylolated urea under reduced pressure or pressurization, is being considered; It was thought that the liquid would not penetrate, and no flammability could be expected.
〈発明の目的〉
本発明の目的は、上記のような事情に鑑みなされたもの
であって、寸法安定性及び難燃性を付与した改良木材の
製法を提供することにある。<Objective of the Invention> The object of the present invention, which was made in view of the above circumstances, is to provide a method for producing improved wood that has dimensional stability and flame retardancy.
〈発明の開示〉
本発明は、加熱加圧操作により、元の木材の平衡含水率
の絶対値を２〜４チ低くすると共に抗膨張率を２０〜６
０％に改質した後に、次のＡ、Ｂ。<Disclosure of the Invention> The present invention lowers the absolute value of the equilibrium moisture content of the original wood by 2 to 4 inches and increases the anti-swelling coefficient by 20 to 6 inches by heating and pressurizing the wood.
After modification to 0%, the following A and B.
Ｃの各工程、すなわち、メチロール化フェノール、メチ
ロール化メラミンおよびメチロール化尿素からなる群か
ら選ばれた少なくとも１種を、好ましくは重量比で２チ
以上含むとともに硬化剤も含む処理液を上記加熱処理木
材中に含浸させる人工程、マグネシウム、カルシウム、
バリウムおよびアルミニウムイオンからなる群の中から
選ばれた少なくとも１種を、好ましくは重量比で５−以
上含む処理液を該木材中に含浸させるＢ工程、および、
リン酸、ホウ酸、炭酸および硫酸イオンからなる群から
選ばれた少なくとも１種を、好ましくは重量比で５ｓ以
上含む処理液を該木材中に含浸させるＣ工程を含むこと
を要旨とする改良木材の製法である。In each step of step C, the treatment liquid containing at least one selected from the group consisting of methylolated phenol, methylolated melamine, and methylolated urea, preferably at least 2% by weight, and also contains a curing agent is subjected to the above heat treatment. Human process of impregnating the wood with magnesium, calcium,
B step of impregnating the wood with a treatment liquid containing at least one selected from the group consisting of barium and aluminum ions, preferably at a weight ratio of 5 or more, and
An improved wood comprising a step C of impregnating the wood with a treatment liquid containing at least one selected from the group consisting of phosphoric acid, boric acid, carbonate and sulfate ions, preferably at a weight ratio of 5 seconds or more. This is the manufacturing method.
以下に、詳しく説明する。This will be explained in detail below.
ここで、抗膨張車とは、Ａ Ｓ Ｅ （Ａｎｔｉ−ａｗ
ｓｌｌｉｎｇＥｆｆｌｅｌ・ｎｃｙ ）で次式で計算す
る。Here, the anti-expansion wheel is ASE (Anti-aw
sllingEffel·ncy) is calculated using the following formula.
Ｄｏ＝未処理材の膨張率
Ｄ ；処理材の膨張率
本発明での加熱加圧操作としては、圧力容器中に電気ヒ
ーター、ガスヒーター、オイルヒーターなどによる加熱
と、コンプレッサーによる加圧、または水蒸気による加
熱加圧のいずれ本可能であるが、中でも水蒸気による加
熱加圧が安全で経済約である。加熱加圧条件としては、
１２０〜２５０℃、２〜４０ ｋｇ／ｄ、処理時間は温
度、圧力によシ異なるが、例えば、ゴムツキで厚さ５０
ｍｇｍの板材の場合で、１２０°ｃ 、 ２ ｋｉｉ／
ｃ４で８時間、またはｚｘｏｏｃ、２ｏｋｇ／ｄで３０
分間の処理で平衡含水率の絶対値は約２１低くなり、抗
膨張率は約２０１となる。また％１５０℃、 ｓ ＃／
ｄｆｌ ａ時間、ｔたは２５０℃、 ４０ ＃／ｃｌで
２時間処理で約６０９Ｉと表る。なお、温度が１２０℃
以下では木材が改良されず、２５０ ’Ｏ以上では木材
の細胞が破壊して強度が著しく低下する。また、ここで
平衡含水率が２１未満の低下では抗膨張率は２０１未満
とまυ、実用上、反シ、狂いに著しい効果がない。逆Ｋ
、４１以上の平衡含水率の低下では抗膨張率は６０慢以
上と力υ、寸法安定性としては非常に良好であるが、操
作上高熱を要するために木材のもつ自然の風合がなくな
ｐ、炭化が著しく、また機械的強度の劣化が著しく好ま
しくない。Do = expansion coefficient D of untreated material; expansion coefficient of treated material The heating and pressurizing operation in the present invention includes heating with an electric heater, gas heater, oil heater, etc. in a pressure vessel, pressurization with a compressor, or water vapor. Although heating and pressurizing using water vapor is possible, heating and pressurizing using water vapor is safe and economical. The heating and pressurizing conditions are as follows:
120 to 250°C, 2 to 40 kg/d, processing time varies depending on temperature and pressure, but for example, if the thickness is 50
In the case of mgm plate material, 120°c, 2 kii/
8 hours at c4 or 30 at zxooc, 2okg/d
The absolute value of the equilibrium water content decreases by about 21 after the treatment for 1 minute, and the anti-swelling coefficient becomes about 201. Also %150℃, s#/
dfl a time, t or 2 hours treatment at 250° C. and 40 #/cl gives approximately 609 I. In addition, the temperature is 120℃
If the temperature is lower than 250'O, the wood will not be improved, and if the temperature is higher than 250'O, the wood cells will be destroyed and the strength will be significantly reduced. Further, if the equilibrium water content is lowered to less than 21, the anti-swelling coefficient is less than 201, and in practical terms, there is no significant effect on anti-swelling and distortion. Inverted K
When the equilibrium moisture content decreases to 41 or more, the anti-swelling coefficient is 60 or more and the force υ is very good in terms of dimensional stability, but the natural texture of the wood is lost due to the high heat required for operation. p, carbonization is significant and mechanical strength is significantly deteriorated, which is undesirable.
上記の如く、加熱加圧によシ改質された木材は、木材中
の平衡含水率の高いヘミセルロースが分解して溶出し、
重量が約１０係低下する。また、溶出外だけ空隙部分が
多くなり、ポーラスに々る。As mentioned above, in wood modified by heating and pressurization, hemicellulose with a high equilibrium water content in the wood decomposes and elutes.
Weight decreases by about 10%. In addition, there are more voids only outside the elution area, making it more porous.
従って、次工程の離燃化剤の含浸がし易くなる。Therefore, it becomes easier to impregnate the flame retardant in the next step.
次に、Ａ、Ｂ、Ｃの各工程であるが、人工風において、
メチロール化フェノール、メチロール化メラミンおよび
メチロール化尿素からなる群の中から選ばれた少なくと
ｉｈ１種を含む処理液Ａを用いる。これらは、いずれも
、セルロースと親和性が高い。そのため、木材中に浸透
し易く、セルロースの非晶部までよく浸透する。これら
のものは、処理液中に重量比で２チ以上含まれているこ
とが好ましい。これ未満であると効果が得られないから
である。処理液中には硬化剤も適量含まれている必要が
ある。硬化剤としては、カルボン酸エステル、酸無水物
、有機ハロゲン化物、アミン類の塩酸塩、アンモニウム
塩、尿素誘導体、尿素アダクト（付加物）等を用いるこ
とができる。Next, in steps A, B, and C, in artificial wind,
A treatment liquid A containing at least one ih selected from the group consisting of methylolated phenol, methylolated melamine, and methylolated urea is used. All of these have high affinity with cellulose. Therefore, it easily penetrates into the wood and penetrates well into the amorphous parts of cellulose. It is preferable that 2 or more of these substances are contained in the treatment liquid in terms of weight ratio. This is because if it is less than this, no effect will be obtained. The processing liquid must also contain an appropriate amount of a curing agent. As the curing agent, carboxylic acid esters, acid anhydrides, organic halides, hydrochlorides of amines, ammonium salts, urea derivatives, urea adducts, and the like can be used.
メチロール化フェノールは、例えば、原材料として、モ
ル比で、フェノール１．０、ホルムアルデヒド２．０〜
４．０および水酸化ナトリウム０，５〜１．５を用いる
。反応温度は４０℃以下であって低温合成である。まず
、ホルマリン（３７チホルムアルデヒド水溶液）中に水
酸化ナトリウムを冷却しながら溶解してから、フェノー
ルを冷却しながら混合溶解して、そのまま６〜４８時間
攪拌して反応させ、そののち、塩酸で中和する。ここで
、水酸化ナトリウムの代りに、アンモニア、水酸化カリ
ウム、水酸化カルシウムを用いることもできる。For example, methylolated phenol is used as a raw material in a molar ratio of 1.0 to 2.0 to formaldehyde.
4.0 and sodium hydroxide 0.5-1.5. The reaction temperature is 40°C or less, which is low-temperature synthesis. First, sodium hydroxide is dissolved in formalin (37 thiformaldehyde aqueous solution) while cooling, and then phenol is mixed and dissolved while being cooled. The mixture is stirred for 6 to 48 hours to react, and then neutralized with hydrochloric acid. sum up Here, ammonia, potassium hydroxide, and calcium hydroxide can also be used instead of sodium hydroxide.
また、中和剤の塩酸の代わりに、硫酸、リン酸、ホウ酸
、硝酸等を用いることもできる。Furthermore, instead of the neutralizing agent hydrochloric acid, sulfuric acid, phosphoric acid, boric acid, nitric acid, etc. can also be used.
メチロール化メラミンは、例えば、原材料として、モル
比で、メラ建ン１．０、ホルムアルデヒド２．０〜４．
０および水酸化ナトリウム０．５〜１．５を用い、前記
メチロール化フェノールの製造例において、フェノール
の代わシにメラミンを用いることにより製造できる。Methylolated melamine is used, for example, as a raw material in a molar ratio of 1.0 to 2.0 to 4.0 to formaldehyde.
0 and sodium hydroxide from 0.5 to 1.5, and by using melamine in place of phenol in the production example of methylolated phenol.
メチロール化尿素は、例えば、原材料として、モル比で
、尿素１．０、ホルムアルデヒド２．０〜４．５および
水酸化ナトリウム０．５〜１．５を用いて、前記メチロ
ール化フェノールの製造例において、フェノールの代わ
、９に尿素を用いることにより製造できる。For example, methylolated urea is used in the production example of methylolated phenol using urea of 1.0, formaldehyde of 2.0 to 4.5, and sodium hydroxide of 0.5 to 1.5 in molar ratio as raw materials. , can be produced by using urea in 9 instead of phenol.
人工程で用いる処理液Ａは、前記のような反応で得られ
る生成物を、適宜、水あるいは有機溶媒で希釈し、さら
に硬化剤を加えることによυ製造できる。The treatment liquid A used in the human process can be produced by diluting the product obtained by the reaction as described above with water or an organic solvent as appropriate, and further adding a curing agent.
Ｂ工程では、マグネシウム、カルシウム、バリウムおよ
びアルミニウムイオンからなる群から選ばれた少くとも
１種を、好ましくは重量比で５チ以上含む処理液Ｂを用
い、Ｃ工程では、リン酸、ホウ酸、炭酸および硫醸イオ
ンから表る群の中から選ばれた少くとも１種を、好まし
くは重量比で５ｇ６以上含む処理液Ｃをそれぞれ用いる
。両処理液Ｂ、Ｃは、アニオンおよびカチオンをそれぞ
れ水溶液等の溶液として別々に木材中に含浸させ、木材
中に水不溶の不燃性無機物（無機塩）を生成させるため
に用いる。In step B, treatment liquid B containing at least one selected from the group consisting of magnesium, calcium, barium and aluminum ions, preferably 5 or more by weight, is used, and in step C, phosphoric acid, boric acid, A treatment liquid C containing at least one selected from the group consisting of carbonic acid and sulfur ions, preferably in an amount of 5 g or more by weight, is used. Both treatment solutions B and C are used to separately impregnate wood with anions and cations as solutions such as aqueous solutions, and generate water-insoluble, nonflammable inorganic substances (inorganic salts) in the wood.
本発明の改良木材の製法では、元の木材を加熱加圧によ
り改質された木材中に、たとえば、処理液Ａを含浸させ
たのち、加熱等により硬化させる人工程を行って木材中
に樹脂を固定し、つぎに、処理液Ｂを含浸させてＢ工程
を行い、さらに、処理液Ｃを含浸させてＣ工程を行って
木材中に不溶性不燃性無機物を固定する。加熱による処
理液Ａの硬化は８０℃以上で行うのが好ましい。処理液
の含浸は、木材表面に処理液を塗布したり、処理液中に
木材を浸漬したすするなどして行うとよい。In the method for producing improved wood of the present invention, for example, treatment liquid A is impregnated into the wood that has been modified by heating and pressurizing the original wood, and then a manual process of curing by heating or the like is performed to infuse resin into the wood. Then, the wood is impregnated with treatment liquid B and step B is performed, and then treatment liquid C is impregnated and step C is performed to fix the insoluble incombustible inorganic material in the wood. It is preferable that the treatment liquid A be cured by heating at a temperature of 80° C. or higher. Impregnation with the treatment liquid may be carried out by applying the treatment liquid to the surface of the wood, or by soaking the wood in the treatment liquid.
処理液中に木材を浸漬する場合において、減圧あるいは
加圧により処理液の含浸を促進させることもできる。When immersing wood in a treatment liquid, impregnation with the treatment liquid can also be accelerated by applying reduced pressure or increased pressure.
各工程を実施する順番は、前記Ａ−４Ｂ→Ｃに限定され
る本のではない。例えば、Ａ−４Ｃ→Ｂ、Ｂ→Ｃ→Ａ、
Ｃ−４Ｂ→Ａのいずれかの屓によシ行われるようであっ
てもよい。また、Ｂ工程の処理液ＢおよびＣ工程の処理
液Ｃの少なくとも一方が、メチロール化フェノール、メ
チロール化メラミンおよびメチロール化尿素からなる群
の中から選ばれた少なくと４ｈ１１！１を含むと共に硬
化剤を含み、Ｂ−４０の順に工程が行われるとともに、
これに並行して人工程が行われるようであってもよいし
、Ｃ→Ｂの順に工程が行われると共に、これに並行して
人工程が行われるようであってもよい。要するに、木材
中に不溶性不燃性無機物および樹脂を固定することがで
きれば、順番は特に限定されないのである。The order in which each step is performed is not limited to A-4B→C. For example, A-4C→B, B→C→A,
C-4B→A may be performed. Further, at least one of the treatment liquid B in step B and the treatment liquid C in step C contains at least 4h11!1 selected from the group consisting of methylolated phenol, methylolated melamine, and methylolated urea, and a curing agent. Including, the steps are performed in the order of B-40, and
A human process may be performed in parallel with this, or processes may be performed in the order of C→B, and a human process may be performed in parallel. In short, the order is not particularly limited as long as the insoluble, nonflammable inorganic substance and resin can be fixed in the wood.
このようにして得られた改良木材は、不溶性不燃性無機
物を含むので、難燃性および防腐、防虫性に優れ、その
うえ、木材中のセルロースと親和性の高い、反応性モノ
マーを木材中に含浸させ、硬化させるようにしているの
で、著しく優れた寸法安定性を有するのである。The improved wood thus obtained contains insoluble, non-combustible inorganic substances, so it has excellent flame retardancy, antiseptic properties, and insect repellency.In addition, the wood is impregnated with a reactive monomer that has a high affinity for the cellulose in the wood. Since it is allowed to dry and harden, it has extremely excellent dimensional stability.
つぎに実施例で説明する。Next, an example will be explained.
実施例１
３０°Ｃ１湿度７０チで平衡含水率１０憾の厚さ５０鱈
のゴムツキを圧力容器！ＩＣ入し、１０ ｋｌ／ｄの飽
和水蒸気で１７５°Ｃに調整して２時間処理したところ
、平衡含水率は５チとなり、抗膨張率が４０係の改質木
材を得た。Example 1 A pressure vessel containing a 50 mm thick piece of cod with an equilibrium moisture content of 10 at 30°C and humidity of 70 degrees! When the wood was placed in an IC and treated with 10 kl/d of saturated steam at 175°C for 2 hours, the equilibrium moisture content was 5 cm, and a modified wood with an anti-swelling coefficient of 40 was obtained.
また、以下の条件でメチロール化フェノールをつくった
。In addition, methylolated phenol was produced under the following conditions.
配合条件 フェノール １モル ホルムアルデヒド ３モル 水酸化ナトリウム １モル 塩酸 １モル 生成物の組成は次の通シであった。Mixing conditions Phenol 1 mole Formaldehyde 3 moles Sodium hydroxide 1 mole Hydrochloric acid 1 mole The composition of the product was as follows.
虫取メチロール化フェノール
Ｑ−％ツメチロール化フェノール
１２モルチ
ｐ−モノメチロール化フェノール
１９モル憾
Ｏ，ｐ−ジメチは−ル化フェノール
１５モル憾
トリメチロール化フェノール
２２モル憾
２量体以上の縮合物 １７モルチ
未反応フェノール １５モル慢
とのようにしてつくった生皮メチロール化フェノールを
水で２倍に希釈し、この希釈物１００重量部に対して、
硬化剤として２０係塩化アンモニウム水溶液を１重量部
混合して処理液Ａ（処理用樹脂、メチロール化しゾール
飽理液）とした。Insect removal Methylolated phenol Q-%Tumethylolated phenol 12 mol p-Monomethylolated phenol 19 mol O,p-dimethylolated phenol 15 mol Trimethylolated phenol 22 mol Condensate of dimer or more 17 mol Unreacted phenol: 15 mol The rawhide methylolated phenol prepared as above was diluted twice with water, and for 100 parts by weight of this diluted product,
1 part by weight of a 20% ammonium chloride aqueous solution was mixed as a curing agent to prepare a treatment liquid A (processing resin, methylolated sol saturated liquid).
また、処理無機物水溶液として、水１ｇに対してＢａＣ
ｌ１ｚ ２．２モルを溶解させた処理液Ｂ、水１ノに（
ＮＨ４）ｚＨＰＯｎを８．０モルおよびＨ３ＢＯ３を６
．０モル溶解させた処理液Ｃを用いた。In addition, as a treated inorganic aqueous solution, BaC per 1 g of water
Processing solution B in which 2.2 mol of l1z was dissolved was added to 1 mol of water (
8.0 moles of NH4)zHPOn and 6 moles of H3BO3
．． Treatment liquid C in which 0 mol was dissolved was used.
次に、上記改質木材を３■厚の単板にして、含水率２０
Ｇ−以上に飽水処理した。つぎに、６０°Ｃで８時間、
処理液ＢＫ単板を浸漬し、６０℃で８時間、処理液Ｃに
単板を浸漬して、１０５℃で熱風で乾燥した。このあと
、単板に処理液Ａを減圧含浸し、１２０°Ｃで１時間乾
燥させ、改良木材を得た。Next, the above modified wood was made into a 3cm thick veneer, and the moisture content was 20.
The sample was saturated with water to a level higher than G-. Next, at 60°C for 8 hours,
The veneer was immersed in the treatment liquid BK, and the veneer was immersed in the treatment liquid C at 60°C for 8 hours, and then dried with hot air at 105°C. Thereafter, the veneer was impregnated with treatment solution A under reduced pressure and dried at 120°C for 1 hour to obtain improved wood.
比較例１
実施例１にて、ゴムツキを加熱加圧処理しない以外は同
様に浸漬して、比較例１とした０処理液Ｂ、処理液Ｃ浸
漬して乾燥後の含浸率は不溶性不燃性無機、物は、実施
例１は５７嚢であり、比較例１は５１１であった。また
処理液Ａ含浸乾燥後の樹脂含浸率は、実施例１は１５−
であり、比較例１は１１１であった０
なお、含浸率は次式で計算した。Comparative Example 1 Comparative Example 1 was obtained by immersing the rubber base in the same manner as in Example 1 except that the heat and pressure treatment was not performed. In Example 1, there were 57 bags, and in Comparative Example 1, there were 511 bags. In addition, the resin impregnation rate after impregnation and drying of treatment liquid A was 15-1 in Example 1.
In Comparative Example 1, it was 111.0 The impregnation rate was calculated using the following formula.
含浸率＝（Ａ−Ｂ）／Ｂ
Ａ：処理後の絶乾重量
Ｂ；処理前の絶乾重量
〈発明の効果〉
本発明では、加熱加圧操作により、元の木材の平衡含水
率の絶対値を２〜４１低くすることＫよシ、木材中に空
隙部分が多くなるので、不溶不燃性無機物や難燃性樹脂
の含浸（率）が多くなる。従って、離燃性および防腐・
防虫性に優れると共に寸法安定性にも非常に優れたもの
が得られるので、建築・構築材料、家具部材として有用
である。Impregnation rate = (A-B)/B A: Absolute dry weight after treatment B; Absolute dry weight before treatment <Effects of the invention> In the present invention, the absolute equilibrium moisture content of the original wood is If the value is lowered by 2 to 41 points, there will be more voids in the wood, so the impregnation (rate) of insoluble and nonflammable inorganic substances and flame-retardant resin will increase. Therefore, flammability and preservative
Since it has excellent insect repellency and excellent dimensional stability, it is useful as an architectural/construction material and a furniture member.
Claims (3)
対値を２〜４％低くすると共に抗膨張率を２０〜６０％
に改質した後に、次のＡ、Ｂ、Ｃの各工程、すなわち、
メチロール化フェノール、メチロール化メラミンおよび
メチロール化尿素からなる群の中から選ばれた少なくと
も１種を含む処理液を木材中に含浸させるＡ工程、マグ
ネシウム、カルシウム、バリウムおよびアルミニウムイ
オンからなる群の中から選ばれた少なくとも１種を含む
処理液を木材中に含浸させるＢ工程、および、リン酸、
ホウ酸、炭酸および硫酸イオンからなる群の中から選ば
れた少なくとも１種を含む処理液を木材中に含浸させる
Ｃ工程を含むことを特徴とする改良木材の製法。(1) By heating and pressurizing, the absolute value of the equilibrium moisture content of the original wood is lowered by 2 to 4%, and the anti-swelling rate is increased by 20 to 60%.
After the modification, the following steps A, B, and C, namely,
Step A of impregnating wood with a treatment solution containing at least one selected from the group consisting of methylolated phenol, methylolated melamine and methylolated urea; selected from the group consisting of magnesium, calcium, barium and aluminum ions; B step of impregnating wood with a treatment liquid containing at least one selected type, and phosphoric acid,
A method for producing improved wood, comprising a step C of impregnating wood with a treatment liquid containing at least one selected from the group consisting of boric acid, carbonic acid, and sulfate ions.
、Ｃ→Ｂ→Ａのいずれかの順により行われる特許請求の
範囲第１項記載の改良木材の製法。(2) Each process is A→B→C, A→C→B, B→C→A
, C→B→A, the method for producing improved wood according to claim 1.
も一方が、メチロール化フェノール、メチロール化メラ
ミンおよびメチロール尿素からなる群の中から選ばれた
少なくとも１種を重量比で２％以上含むと共に硬化剤を
含み、Ｂ→Ｃの順またはＣ→Ｂの順に工程が行われると
共に、これに並行してＡ工程が行われる特許請求の範囲
第１項記載の改良木材の製法。(3) At least one of the treatment liquid of step B and the treatment liquid of step C contains at least 2% by weight of at least one selected from the group consisting of methylolated phenol, methylolated melamine, and methylolurea, and The method for producing improved wood according to claim 1, which includes a hardening agent, and in which the steps are carried out in the order of B→C or C→B, and the step A is carried out in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13425089A JPH03202A (en) | 1989-05-26 | 1989-05-26 | Manufacture of modified wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13425089A JPH03202A (en) | 1989-05-26 | 1989-05-26 | Manufacture of modified wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03202A true JPH03202A (en) | 1991-01-07 |
Family
ID=15123906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13425089A Pending JPH03202A (en) | 1989-05-26 | 1989-05-26 | Manufacture of modified wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007054023A1 (en) * | 2005-11-11 | 2007-05-18 | Shiliang Jiang | Composite board consisting of timber and alumina and manufacturing process thereof |
-
1989
- 1989-05-26 JP JP13425089A patent/JPH03202A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007054023A1 (en) * | 2005-11-11 | 2007-05-18 | Shiliang Jiang | Composite board consisting of timber and alumina and manufacturing process thereof |
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