JPH053803B2 - - Google Patents
Info
- Publication number
- JPH053803B2 JPH053803B2 JP60233038A JP23303885A JPH053803B2 JP H053803 B2 JPH053803 B2 JP H053803B2 JP 60233038 A JP60233038 A JP 60233038A JP 23303885 A JP23303885 A JP 23303885A JP H053803 B2 JPH053803 B2 JP H053803B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- weight
- stabilizer
- monomer
- examples
- 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 - Lifetime
Links
- 239000002023 wood Substances 0.000 claims description 40
- 239000003381 stabilizer Substances 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000000178 monomer Substances 0.000 description 17
- 238000011282 treatment Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000005470 impregnation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- 230000008961 swelling Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003505 polymerization initiator Substances 0.000 description 5
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 4
- 230000002579 anti-swelling effect Effects 0.000 description 4
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004342 Benzoyl peroxide Substances 0.000 description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000010875 treated wood Substances 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- LTHJXDSHSVNJKG-UHFFFAOYSA-N 2-[2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOCCOC(=O)C(C)=C LTHJXDSHSVNJKG-UHFFFAOYSA-N 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- 239000010876 untreated wood Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 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 1
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 1
- 241000208140 Acer Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 241000219495 Betulaceae Species 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 240000005109 Cryptomeria japonica Species 0.000 description 1
- 241000218691 Cupressaceae Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 241000721662 Juniperus Species 0.000 description 1
- 235000014556 Juniperus scopulorum Nutrition 0.000 description 1
- 235000014560 Juniperus virginiana var silicicola Nutrition 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241001115819 Pseudotsuga japonica Species 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 235000008691 Sabina virginiana Nutrition 0.000 description 1
- 241000736892 Thujopsis dolabrata Species 0.000 description 1
- 240000007313 Tilia cordata Species 0.000 description 1
- 239000012814 acoustic material Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 235000001520 savin Nutrition 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- ATZHWSYYKQKSSY-UHFFFAOYSA-N tetradecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C(C)=C ATZHWSYYKQKSSY-UHFFFAOYSA-N 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
（産業上の利用分野）
本発明は木材の寸法安定化剤に関する。
（従来の技術）
木材は外気の温湿度変化により、膨脹、収縮を
起して、経日的に変形をきたし、ひび割れ、ねじ
れを生ずる等の欠点を有している。このような木
材の吸脱湿に伴う膨脹、収縮を改善する方法とし
て、ポリオキシアルキレングリコールモノ（メ
タ）アクリレートの５〜90重量％水溶液にエチレ
ンカーボネートなどの溶媒を添加した処理液を木
材に含浸した後、硬化させる方法がある（特開昭
58−39403号公報）。
（発明が解決しようとする問題点）
しかし従来の方法では、木材を安定化させるた
めに、安定化剤を木材重量に対し通常40％以上も
含浸させる必要があり、また溶剤を使用する必要
がある等によりコストが高くつくという問題があ
つた。
（問題点を解決するための手段）
本発明者らは、木材への含浸量が少なくても十
分な効果が得られ、かつ溶剤を使用しなくてもよ
い木材の寸法安定化剤を見い出すべく、鋭意検討
した結果、本発明に到達した。
本発明は一般式(1)
で示される化合物(a)が５〜100重量％と、
一般式(2)
で示される化合物(b)が０〜95重量％
からなることを特徴とする木材の寸法安定化剤で
ある。
式中R1はCH3である。R2は炭素数８〜22のア
ルキル基である。R3は、ポリエチレングリコー
ル又はテトラエチレングリコール又はエチレング
リコールの残基である。ｍは２である。
一般式(1)においてR2の炭素数10〜18のアルキ
ル基を形成する脂肪族一価アルコールとしては、
直鎖または分岐の一価アルコールの残基であり、
たとえばデシルアルコール、ドデシルアルコー
ル、ドリデシルアルコール、テトラデシルアルコ
ールの残基である。
また、とりわけR2の炭素数が７以下および23
以上のアルキル基では、木材への含浸、硬化後の
木材寸法安定性が不充分であり、好ましくない。
本発明の安定化剤において、安定化剤中の化合
物(a)および化合物(b)の含有量は、化合物(a)が５〜
100重量％に対して、化合物(b)が０〜95重量％で
あるが、化合物(a)は、好ましくは50〜100％、化
合物(b)は、好ましくは１〜50％、とくに好ましく
は５〜20％である。
上記において化合物(a)の含有量が５％未満で
は、処理した木材の寸法安定性が不充分である。
本発明の安定化剤の化合物(a)および(b)の組み合
せ例としては、ラウリルメタアクリレート（90重
量％）とテトラエチレングリコールジメタクリレ
ート（４重量％）とエチレングリコールジメタク
リレート（５重量％）とトリメチロールプロパン
トリメタクリレート（１重量％）の組み合せ、ス
テアリルメタクリレート（90重量％）とエチレン
グリコールジメタクリレート（９重量％）とトリ
メチロールプロパントリメタクリレート（１重量
％）の組み合せ、ミリスチルメタクリレート（90
重量％）とテトラエチレングリコールジメタクリ
レート（６重量％）とエチレングリコールジメタ
クリレート（３重量％）とトリメチロールプロパ
ントリメタクリレート（１重量％）の組み合せ、
ドデシルメタクリレート（94重量％）とβ−ヒド
ロキシメタクリレート（２重量％）とエチレング
リコールジメタクリレート（３重量％）とトリメ
チロールプロパントリメタクリレート（１重量
％）の組み合せなどである。
本発明における安定化剤の木材への含浸方法と
しては、従来から行われている減圧法または減圧
−加圧法が好ましいが、常温常圧下での浸漬法も
可能であり、木材を安定化剤に浸漬中に超音波を
照射することも有効である。含浸する際の安定化
剤は溶媒で希釈する必要がなく、含浸時間は通常
１〜20時間、好ましくは２〜10時間である。
安定化剤を含浸した木材を重合処理するには、
安定化剤含浸木材に放射線を照射してもよいが、
一般に重合開始剤を用いて加熱する方法がとられ
る。
重合開始剤としては、過酸化ベンゾイル、過酸
化メチルエチルケトン等の有機過酸化物、アゾビ
スイソプチロニトリルなどのアゾ化合物などのラ
ジカル重合触媒が常用される。この場合、ナフテ
ン酸コバルトなど重合促進剤を併用して低温重合
も多く行われる。重合開始剤の添加量は安定化剤
重量に対して通常0.1〜1.0％であるが、木材の種
類その他添加剤によつて種々かえることができ
る。
重合開始剤は安定化剤含浸液に予め加えておく
のが好ましいが、予め木材に処理しておくか、安
定化剤を含浸後に処理してもよい。
その他、添加剤として木材の着色剤、難燃剤、
防腐・防虫剤などを加えることもできる。
加熱は50〜80℃の温度域で１〜20時間行われ
る。
木材に含浸した安定化剤重量の木材重量に対す
る割合をML（monomer loading；モノマー率）
といい、次式で算出すると、本発明の安定化剤の
MLは通常10〜50％である。
ML（％）＝安定化剤含浸後剤重量−無処理剤
重量／無処理剤重量×100
また寸法安定性の評価として、一般にASE
（anti−swelling efficiency；抗膨潤能）が用い
られ、本発明の安定化剤のASEは通常40〜70％
である。
尚ASEは次式により算出される。
ASE（％）＝無処理材の膨潤率（％）−処理
材の膨潤率（％）／無処理材の膨潤率（％）×100
本発明において使用される木材としては、広葉
樹材（カバ、カエデ、ブナ、ナラ、タモ、ハンノ
キ、ポプラ、シナノキなど）および針葉樹材〔マ
ツ（ベイマツなど）、杉（赤杉、ベイスギなど）、
ヒバ（ベイヒバ、ベイヒ、スプルース、マカンバ
など）など〕があげられる。
広葉樹材は含浸性が良好であるが、針葉樹材は
一般に含浸性が低く、多くの場合単板として用い
られる。
（実施例）
以下実施例、比較例および試験例により本発明
をさらに説明するが、本発明はこれに限定される
ものではない。以下％は重量％のことである。
実施例１〜７、比較例１〜７
実施例１〜７の配合割合を表−１に、比較例１
〜７の配合割合を表−２に記す。
(Industrial Application Field) The present invention relates to a dimensional stabilizer for wood. (Prior Art) Wood has disadvantages such as expansion and contraction due to changes in the temperature and humidity of the outside air, deformation over time, cracking, and twisting. As a method to improve the expansion and contraction caused by moisture absorption and desorption of wood, the wood is impregnated with a treatment solution prepared by adding a solvent such as ethylene carbonate to a 5 to 90% by weight aqueous solution of polyoxyalkylene glycol mono(meth)acrylate. There is a method of curing after
58-39403). (Problem to be solved by the invention) However, in the conventional method, in order to stabilize the wood, it is necessary to impregnate the wood with a stabilizing agent that usually accounts for 40% or more of the weight of the wood, and it is also necessary to use a solvent. There was a problem that the cost was high due to some reasons. (Means for Solving the Problems) The present inventors aimed to find a dimensional stabilizer for wood that can provide a sufficient effect even if the amount of impregnation into wood is small and that does not require the use of a solvent. As a result of intensive studies, we have arrived at the present invention. The present invention is based on the general formula (1) 5 to 100% by weight of the compound (a) represented by the general formula (2) This is a wood dimensional stabilizer characterized by comprising 0 to 95% by weight of the compound (b) represented by: In the formula, R 1 is CH 3 . R 2 is an alkyl group having 8 to 22 carbon atoms. R 3 is a residue of polyethylene glycol or tetraethylene glycol or ethylene glycol. m is 2. The aliphatic monohydric alcohol forming the alkyl group having 10 to 18 carbon atoms in R 2 in general formula (1) is
It is the residue of a straight or branched monohydric alcohol,
For example, residues of decyl alcohol, dodecyl alcohol, dodecyl alcohol, and tetradecyl alcohol. In particular, the number of carbon atoms in R 2 is 7 or less and 23
The above-mentioned alkyl groups are undesirable because impregnation into wood and dimensional stability of wood after curing are insufficient. In the stabilizer of the present invention, the content of compound (a) and compound (b) in the stabilizer is such that the content of compound (a) is 5 to 5.
With respect to 100% by weight, the amount of compound (b) is 0 to 95% by weight, preferably 50 to 100% of compound (a), and preferably 1 to 50% of compound (b), particularly preferably It is 5-20%. In the above, if the content of compound (a) is less than 5%, the dimensional stability of the treated wood will be insufficient. Examples of the combination of compounds (a) and (b) of the stabilizer of the present invention include lauryl methacrylate (90% by weight), tetraethylene glycol dimethacrylate (4% by weight), and ethylene glycol dimethacrylate (5% by weight). and trimethylolpropane trimethacrylate (1% by weight), stearyl methacrylate (90% by weight), ethylene glycol dimethacrylate (9% by weight) and trimethylolpropane trimethacrylate (1% by weight), myristyl methacrylate (90% by weight),
(% by weight), a combination of tetraethylene glycol dimethacrylate (6% by weight), ethylene glycol dimethacrylate (3% by weight), and trimethylolpropane trimethacrylate (1% by weight),
Examples include a combination of dodecyl methacrylate (94% by weight), β-hydroxy methacrylate (2% by weight), ethylene glycol dimethacrylate (3% by weight), and trimethylolpropane trimethacrylate (1% by weight). In the present invention, the method of impregnating wood with the stabilizer is preferably the conventional vacuum method or vacuum-pressure method, but an immersion method at room temperature and normal pressure is also possible, and the wood is impregnated with the stabilizer. It is also effective to irradiate ultrasonic waves during immersion. There is no need to dilute the stabilizer with a solvent during impregnation, and the impregnation time is usually 1 to 20 hours, preferably 2 to 10 hours. To polymerize wood impregnated with stabilizers,
Stabilizer-impregnated wood may be irradiated, but
Generally, a method of heating using a polymerization initiator is used. As the polymerization initiator, radical polymerization catalysts such as organic peroxides such as benzoyl peroxide and methyl ethyl ketone peroxide, and azo compounds such as azobisisobutyronitrile are commonly used. In this case, low-temperature polymerization is often carried out in combination with a polymerization accelerator such as cobalt naphthenate. The amount of the polymerization initiator added is usually 0.1 to 1.0% based on the weight of the stabilizer, but it can be varied depending on the type of wood and other additives. It is preferable to add the polymerization initiator to the stabilizer impregnating solution in advance, but the wood may be treated in advance or treated after being impregnated with the stabilizer. Other additives include wood colorants, flame retardants,
Preservatives and insect repellents can also be added. Heating is carried out in a temperature range of 50-80°C for 1-20 hours. ML (monomer loading; monomer ratio) is the ratio of the weight of the stabilizer impregnated into the wood to the weight of the wood.
When calculated using the following formula, the stabilizer of the present invention
ML is usually 10-50%. ML (%) = weight of stabilizer-impregnated agent - weight of untreated agent / weight of untreated agent x 100 In addition, as an evaluation of dimensional stability, ASE is generally used.
(anti-swelling efficiency; anti-swelling ability) is used, and the ASE of the stabilizer of the present invention is usually 40 to 70%.
It is. Note that ASE is calculated using the following formula. ASE (%) = Swelling rate (%) of untreated wood - Swelling rate (%) of treated wood / Swelling rate (%) of untreated wood x 100 The wood used in the present invention is hardwood (birch, birch, maple, beech, oak, ash, alder, poplar, linden, etc.) and coniferous materials (pine (Japanese Douglas fir, etc.), cedar (red cedar, Japanese cedar, etc.),
Hiba (Japanese cypress, Beihi, Spruce, Macamba, etc.) are examples. Hardwoods have good impregnation properties, but softwoods generally have poor impregnation properties and are often used as veneers. (Examples) The present invention will be further described below with reference to Examples, Comparative Examples, and Test Examples, but the present invention is not limited thereto. Hereinafter, % refers to % by weight. Examples 1 to 7, Comparative Examples 1 to 7 The blending ratios of Examples 1 to 7 are shown in Table 1, Comparative Example 1
The blending ratios of ~7 are shown in Table-2.
【表】【table】
【表】【table】
【表】
試験例 １
上記実施例および比較例配合物に重合開始剤と
して過酸化ベンゾイル（BPO）をモノマーに対
し、１％を混ぜ処理液とした。
この処理液を下記木材試験片に含浸し、熱硬化
処理を行い、モノマー率（ML）と抗膨潤率
（ASE）を測定した。
（供試片）
ベイヒの木片（125×25×８mm）を用いた。
（処理液の含浸）
実施例１〜７および比較例１〜７の各処理液に
試験片を浸漬し、上から荷重を加えて、常温、常
圧にて10〜80時間含浸を行い、処理液から取り出
した後、１時間放置することにより処理液切りを
行つた。
木材に含浸した安定化剤重量の木材重量に対す
る割合ML（monomer loading；モノマー率）を
下記式により求めた。
ML＝Ｗ−W0／W0×100
W0＝無処理材重量
Ｗ＝安定化剤含浸後重量
（硬化処理）
処理液切り後、試験片をジメチルアニリン１％
水溶液に常温常圧にて１分間浸漬し、80℃の循風
乾燥器中で２時間熱処理することにより硬化させ
た。
（寸法安定性評価）
硬化処理した試験片を水道水に常温で24時間浸
漬した後、体積膨潤率を測定し、無処理材の値を
基準とした改善度を抗膨潤度（ASE）として下
記式より求めた。
ASE（％）＝S0−Ｓ／S0×100
S0：無処理材の体積膨潤率（％）
Ｓ：処理材の体積膨潤率（％）
結果を表３および表４に示す。[Table] Test Example 1 Benzoyl peroxide (BPO) was added as a polymerization initiator to the formulations of the above examples and comparative examples in an amount of 1% based on the monomer to prepare a treatment solution. The following wood test piece was impregnated with this treatment solution, heat-cured, and the monomer ratio (ML) and anti-swelling ratio (ASE) were measured. (Test piece) A piece of Beihi wood (125 x 25 x 8 mm) was used. (Impregnation with treatment liquid) A test piece was immersed in each treatment liquid of Examples 1 to 7 and Comparative Examples 1 to 7, a load was applied from above, and impregnation was performed for 10 to 80 hours at normal temperature and pressure. After taking it out from the solution, it was left to stand for 1 hour to drain the processing solution. The ratio ML (monomer loading; monomer ratio) of the weight of the stabilizer impregnated into the wood to the weight of the wood was determined using the following formula. ML=W- W0 / W0 ×100 W0 =Untreated material weight W=Weight after stabilizing agent impregnation (hardening treatment) After draining the treatment solution, the test piece was soaked in 1% dimethylaniline.
It was immersed in an aqueous solution at room temperature and pressure for 1 minute, and then heat-treated in a circulating air dryer at 80°C for 2 hours to harden it. (Dimensional stability evaluation) After immersing the hardened test piece in tap water at room temperature for 24 hours, the volumetric swelling rate was measured, and the degree of improvement based on the value of the untreated material was defined as the anti-swelling degree (ASE) as shown below. It was calculated from the formula. ASE (%)=S 0 -S/S 0 ×100 S 0 : Volume swelling rate (%) of untreated material S: Volume swelling rate (%) of treated material The results are shown in Tables 3 and 4.
【表】【table】
【表】
（発明の効果）
本発明の安定化剤は下記の効果を奏する。
１ 安定化剤自体の効果
従来より低いポリマー率（10〜15％）で充分
な寸法安定性を得ることができる。また安定し
た寸法安定性能が得られバラツキが少ない。ま
たマツチングが決められれば従来条件によるバ
ラツキが少ない。
木材に含浸処理する際、溶媒で希釈する必要
がない。たとえば、エチレンカーボネートなど
の溶媒を添加する必要がない。従つて、揮発物
がほとんどなく、100％硬化タイプである。
10〜15％の低いポリマー率で相対的によい性
能（吸水率、RWA、ASE、ブリネル硬度、曲
げ強度）を示す。
木材への含浸が容易である。木材成分との相
溶性がなく、木材組織に入りやすい。膨潤、溶
解性がない。一般に重合度の高い分子は木材に
入りにくいが、超音波のキヤビテイシヨン効果
により、非常に速く浸透し、少しの量でよい性
能を示す。木材の組織に入つたアクリルモノマ
ーは親水性のOH基と反応または置換し、バル
キング効果により寸法安定性などの優れた物性
が得られる。また木材への浸透性が良いため、
どの処理方法（塗布、浸漬、減圧、加圧、拡散
等の方法）にも適応出来る。
無色透明、着色自由である。従つて、木材の
有する木目をそのまま出したり、外観上の欠点
をカバーし、高級木観が出せる。
低毒、無臭で取扱いが容易である。
引火点、発火点が高く、安全である。
揮発分がほとんどなく、100％硬化タイプで
ある。
各種の硬化手段を用いることができ、選択の
巾が広い。
〇10 用途、機能に合せ、巾広いモノマーの組み
合せが出来る。
〇11 硬化速度の早いモノマーの組み合せによ
り、常温硬化が可能である。たとえば、
TMPT（トリメチロールプロパントリメタクリ
レート）は10％程度でよい効果を示す。
２ 超音波装置に対する適性
本発明におけるモノマーは、超音波の周波数の
出力がバラツキなく発生出来るモノマーである。
モノマー性質が振動子、ブースター、ホーン
に対して振巾分布を高くする。水の場合は減す
いして木材に振動が伝わりにくい。
モノマーが他の高分子に比較して温度による
粘度等の変化が少ない。巾広い使用条件が得ら
れる。
マツチングが簡易である。超音波のキヤビテ
ーシヨン効果を最大に出すために最適条件の整
合が一般に困難であるが、このモノマーは条件
が見出しやすい。
非常に短時間で所定のポリマー率が得られ
る。
同一装置で多量処理が可能である。モノマー
の性質と超音波マツチングを良好にすれば、５
枚重ねも20枚重ねも同時に処理出来る。
３ 処理木材の加工性および耐久性
(1) 加工性が良好である。
切断等、後加工に特殊な用具を必要としな
い。
塗装、接着性に悪い影響を与えない。
臭気等がなく、取扱いが容易である。
取付金物等に悪い成分を出さない。
(2) 耐久性が良好である。
変色褪色がない。モノマーの変色、木材の変
色に対応出来る。
処理剤の組合せにより、防虫、防腐効力を付
与出来る。
処理剤の組合せにより、防火、難燃処理が可
能である。
モノマーが硬化により半永久的に機能を保持
する。
適当な硬度があり、対摩耗性が向上する。
上記効果を奏することから、本発明の木材寸法
安定化剤は、建築材料（床板、窓枠など）、家具、
厨房関係、スポーツ用品、楽器材料、音響材料の
キヤビネツトなどの木材寸法安定化に有用であ
る。[Table] (Effects of the Invention) The stabilizer of the present invention has the following effects. 1 Effect of the stabilizer itself Sufficient dimensional stability can be obtained with a lower polymer ratio (10 to 15%) than before. In addition, stable dimensional stability performance is obtained with little variation. Furthermore, once the matching is determined, there will be less variation due to conventional conditions. There is no need to dilute with a solvent when impregnating wood. For example, there is no need to add solvents such as ethylene carbonate. Therefore, it has almost no volatile matter and is a 100% hardening type. It shows relatively good performance (water absorption, RWA, ASE, Brinell hardness, flexural strength) at a low polymer content of 10-15%. It is easy to impregnate wood. It has no compatibility with wood components and easily enters the wood structure. No swelling or solubility. Molecules with a high degree of polymerization generally have difficulty penetrating into wood, but due to the cavitation effect of ultrasonic waves, they penetrate very quickly and exhibit good performance with only a small amount. The acrylic monomer that has entered the wood structure reacts with or replaces hydrophilic OH groups, resulting in excellent physical properties such as dimensional stability due to the bulking effect. Also, because it has good penetration into wood,
It can be applied to any treatment method (coating, dipping, depressurization, pressurization, diffusion, etc.). Colorless and transparent, free to be colored. Therefore, the grain of the wood can be brought out as is, defects in appearance can be covered, and the appearance of high quality wood can be achieved. Low toxicity, odorless, and easy to handle. It has a high flash point and ignition point and is safe. It is a 100% hardening type with almost no volatile content. Various curing means can be used, giving a wide range of choices. 〇10 A wide range of monomer combinations can be made to suit the application and function. 〇11 Room temperature curing is possible due to the combination of monomers that have a fast curing speed. for example,
TMPT (trimethylolpropane trimethacrylate) shows good effects at about 10%. 2 Suitability for Ultrasonic Apparatus The monomer used in the present invention is a monomer that can generate an ultrasonic frequency output without variation. Monomer properties provide high amplitude distribution for vibrators, boosters, and horns. In the case of water, the vibration is less likely to be transmitted to the wood. Compared to other polymers, the monomer has less change in viscosity due to temperature. A wide range of usage conditions can be obtained. Matching is easy. Generally, it is difficult to match the optimum conditions to maximize the cavitation effect of ultrasonic waves, but it is easy to find the conditions for this monomer. A given polymer percentage can be obtained in a very short time. Large quantities can be processed with the same device. If the properties of the monomer and the ultrasonic matching are good, 5
It can process both stacked sheets and stacked 20 sheets at the same time. 3 Workability and durability of treated wood (1) Good workability. No special tools are required for cutting or other post-processing. Does not have a negative effect on painting or adhesion. It has no odor and is easy to handle. Does not emit harmful components to mounting hardware, etc. (2) Good durability. No discoloration or fading. Can handle discoloration of monomers and discoloration of wood. By combining treatment agents, insect repellent and antiseptic effects can be imparted. Fire prevention and flame retardant treatments are possible by combining treatment agents. The monomer retains its functionality semi-permanently by curing. It has appropriate hardness and improves wear resistance. Because it exhibits the above effects, the wood dimensional stabilizer of the present invention can be used for building materials (floorboards, window frames, etc.), furniture,
It is useful for stabilizing the dimensions of wood for kitchen-related products, sporting goods, musical instrument materials, acoustic material cabinets, etc.
Claims (1)
アルキル基であある。 R3は、ポリエチレングリコール又はテトラエ
チレングリコール又はエチレングリコールの残基
である。ｍは２である。）からなることを特徴と
する木材の寸法安定化剤[Claims] 1 General formula (1) 5 to 100% by weight of the compound (a) represented by the general formula (2) 0 to 95% by weight of the compound (b) represented by A dimensional stabilizer for wood, characterized in that it is a residue of ethylene glycol (m is 2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23303885A JPS6292801A (en) | 1985-10-18 | 1985-10-18 | Size stabilizing material for wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23303885A JPS6292801A (en) | 1985-10-18 | 1985-10-18 | Size stabilizing material for wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6292801A JPS6292801A (en) | 1987-04-28 |
| JPH053803B2 true JPH053803B2 (en) | 1993-01-18 |
Family
ID=16948829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23303885A Granted JPS6292801A (en) | 1985-10-18 | 1985-10-18 | Size stabilizing material for wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6292801A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011224838A (en) * | 2010-04-16 | 2011-11-10 | Sumitomo Forestry Co Ltd | Resin composition for treating wood veneer |
| JP7117495B2 (en) * | 2018-04-18 | 2022-08-15 | パナソニックＩｐマネジメント株式会社 | Resin-containing wood material and its manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042008A (en) * | 1983-08-19 | 1985-03-06 | Sadao Nishibori | Molding of wooden synthetic plate |
-
1985
- 1985-10-18 JP JP23303885A patent/JPS6292801A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042008A (en) * | 1983-08-19 | 1985-03-06 | Sadao Nishibori | Molding of wooden synthetic plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6292801A (en) | 1987-04-28 |
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