JPH05220712A - Treating agent and treating method for improving dimensional stability of wood - Google Patents
Treating agent and treating method for improving dimensional stability of woodInfo
- Publication number
- JPH05220712A JPH05220712A JP5690692A JP5690692A JPH05220712A JP H05220712 A JPH05220712 A JP H05220712A JP 5690692 A JP5690692 A JP 5690692A JP 5690692 A JP5690692 A JP 5690692A JP H05220712 A JPH05220712 A JP H05220712A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- polyethylene glycol
- dimensional stability
- treating
- treating agent
- 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 41
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 35
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 35
- 239000000178 monomer Substances 0.000 claims abstract description 16
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 125000004386 diacrylate group Chemical group 0.000 claims abstract description 7
- 239000002685 polymerization catalyst Substances 0.000 claims abstract description 6
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims abstract description 5
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 12
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000012985 polymerization agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000005470 impregnation Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004971 Cross linker Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 229920001587 Wood-plastic composite Polymers 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 239000011155 wood-plastic composite Substances 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- PYSGFFTXMUWEOT-UHFFFAOYSA-N 3-(dimethylamino)propan-1-ol Chemical compound CN(C)CCCO PYSGFFTXMUWEOT-UHFFFAOYSA-N 0.000 description 1
- MTPJEFOSTIKRSS-UHFFFAOYSA-N 3-(dimethylamino)propanenitrile Chemical compound CN(C)CCC#N MTPJEFOSTIKRSS-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- LXEKPEMOWBOYRF-UHFFFAOYSA-N [2-[(1-azaniumyl-1-imino-2-methylpropan-2-yl)diazenyl]-2-methylpropanimidoyl]azanium;dichloride Chemical compound Cl.Cl.NC(=N)C(C)(C)N=NC(C)(C)C(N)=N LXEKPEMOWBOYRF-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010352 sodium erythorbate Nutrition 0.000 description 1
- 239000004320 sodium erythorbate Substances 0.000 description 1
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 125000002348 vinylic group Chemical group 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ビニルモノマーを使用
した、木材の寸法安定性を改質するための処理剤及び処
理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treating agent and a treating method for modifying the dimensional stability of wood by using a vinyl monomer.
【０００２】[0002]
【従来の技術】従来、木材の木質感を失わず、耐候性を
向上させるため、樹脂塗装されることが多いが、塗料自
体耐候性が良好であっても、乾燥時と湿潤状態とでは、
木材の寸法変化が大きく、塗料がその変化に追従しない
ため、長期間安定な塗装をすることは困難とされてい
た。このような木材の改質法として、木材に、メタクリ
ル酸エステル、スチレン等のビニル系モノマー及びプレ
ポリマー、並びに不飽和ポリエステル類等を含浸又は注
入せしめて、これを木材中で重合固着させて木材プラス
チック複合体（ＷＰＣ）を得ることが知られている。し
かし、このような木材プラスチック複合体は、寸法安定
性、強度、耐朽性、耐磨耗性は良好であるが、プラスチ
ックの高含浸率により木質感が失われ、また高比重とな
り、木材としての特質を保持した製品を得ることは困難
であった。また、ポリエチレングリコール（ＰＥＧ）を
木材に含浸させて寸法安定性を向上させることも公知で
あるが、この方法では、経時変化が大きく、また、処理
木材に樹脂塗装した場合、塗膜表面がべたつく欠点があ
った。2. Description of the Related Art Conventionally, resin coating is often used in order to improve the weather resistance without losing the woody feel of wood, but even if the coating itself has good weather resistance, it can be dry and wet.
Since the dimensional change of wood is large and the paint does not follow the change, it has been difficult to achieve stable painting for a long time. As a method for modifying such wood, wood is impregnated or injected with vinylic monomers and prepolymers such as methacrylic acid ester and styrene, unsaturated polyesters, etc. It is known to obtain plastic composites (WPC). However, although such a wood-plastic composite has good dimensional stability, strength, decay resistance, and abrasion resistance, it loses the wood texture due to the high impregnation ratio of the plastic, and also has a high specific gravity, which results in It has been difficult to obtain a product that retains the characteristics. It is also known that wood is impregnated with polyethylene glycol (PEG) to improve dimensional stability. However, this method causes a large change with time, and when the treated wood is resin-coated, the surface of the coating film becomes sticky. There was a flaw.
【０００３】[0003]
【発明が解決しようとする課題】前述の如き木材プラス
チック複合体（ＷＰＣ）は、ビニル系モノマーや不飽和
ポリエステル類を木材と共にオートクレーブ中に仕込
み、加圧・減圧を繰り返しながら、木材内に含浸させて
から、加熱して重合させることにより得られるものであ
り、木材の特性が失われると共に、操作性及び経済性に
おいても問題があった。そこで、本発明では、このよう
な問題点に着眼して、木材の特性を損なわず、安価かつ
安全な方法で、木材の寸法安定性を安定して効果的に改
質できる処理剤及び処理方法を提供することを課題とす
る。The wood-plastic composite (WPC) as described above is prepared by charging vinyl monomers and unsaturated polyesters together with wood into an autoclave and impregnating the wood by repeating pressurization and depressurization. Then, it is obtained by heating and polymerizing, and the characteristics of wood are lost, and there are problems in operability and economy. Therefore, in the present invention, focusing on such problems, a treatment agent and a treatment method capable of stably and effectively modifying the dimensional stability of wood by an inexpensive and safe method without impairing the properties of wood. The challenge is to provide.
【０００４】[0004]
【課題を解決するための手段】本発明では、特殊なビニ
ルモノマーを、同様にビニルモノマーからなる架橋剤と
併用することにより、木材処理に水溶液として使用で
き、しかも、木材に塗布又は浸漬法等により容易に含浸
でき、水分の蒸発と同時に木材内で樹脂化せしめること
により、低含浸率で安定して木材の寸法安定性を改良し
うることを見出し、上記課題を解決した。In the present invention, a special vinyl monomer can be used as an aqueous solution for treating wood by using it together with a cross-linking agent also comprising a vinyl monomer, and furthermore, it can be applied to wood or immersed. Therefore, the inventors have found that the dimensional stability of wood can be stably improved with a low impregnation rate by allowing the resin to be resinified in the wood at the same time as the evaporation of water, and solved the above problems.
【０００５】すなわち、本発明の処理剤は、(1) ポリエ
チレングリコールモノアクリレート及びポリエチレング
リコールモノメタクリレートから選ばれる少なくとも一
種のモノマー、(2) ポリエチレングリコールジアクリレ
ート、ポリエチレングリコールジメタクリレート及びメ
チレンビスアクリルアミドから選ばれる少なくとも一種
の架橋剤及び(3) 重合触媒を含むことを特徴とする。That is, the treating agent of the present invention is selected from (1) at least one monomer selected from polyethylene glycol monoacrylate and polyethylene glycol monomethacrylate, and (2) selected from polyethylene glycol diacrylate, polyethylene glycol dimethacrylate and methylenebisacrylamide. At least one crosslinking agent and (3) a polymerization catalyst.
【０００６】本発明で使用するモノマー、すなわちポリ
エチレングリコールモノアクリレート及びポリエチレン
グリコールモノメタクリレートは、平均分子量４０００
以下、特に３５０〜２０００のポリエチレングリコール
のモノアクリレート又はモノメタクリレートであるのが
望ましい。なお、平均分子量４０００を越えるポリエチ
レングリコールのモノアクリレート又はモノメタクリレ
ートは、木材中に含浸し難い。The monomers used in the present invention, namely polyethylene glycol monoacrylate and polyethylene glycol monomethacrylate, have an average molecular weight of 4000.
In the following, it is particularly preferable that the polyethylene glycol monoacrylate or monomethacrylate of 350 to 2000 is used. Incidentally, it is difficult to impregnate wood with a monoacrylate or monomethacrylate of polyethylene glycol having an average molecular weight of more than 4000.
【０００７】次に、架橋剤として使用するポリエチレン
グリコールジアクリレート又はポリエチレングリコール
ジメタクリレートは、平均分子量２０００以下、特に３
５０〜１０００ポリエチレングリコールのジアクリレー
ト又はジメタクリレートであるのが望ましく、平均分子
量２０００を越えるポリエチレングリコールのジアクリ
レート又はジメタクリレートでは、架橋効果が少ない。Next, polyethylene glycol diacrylate or polyethylene glycol dimethacrylate used as a crosslinking agent has an average molecular weight of 2000 or less, especially 3
A diacrylate or dimethacrylate of 50 to 1000 polyethylene glycol is preferable, and a diacrylate or dimethacrylate of polyethylene glycol having an average molecular weight of more than 2000 has a small crosslinking effect.
【０００８】重合触媒としては、酸化剤単独又は酸化剤
と還元剤の組み合わせからなるもの、又はアゾ系誘導体
の使用が好ましく、特に水溶性であるのがよい。酸化剤
としては、ナトリウム、カリウム、アンモニウムの過硫
酸塩が望ましく、還元剤としては、ジエタノールアミ
ン、トリエタノールアミン、ヒドラジン、ヒドロキシル
アミン、ジメチルアミノプロピオニトリル、ジエチルア
ミノエタノール、ジメチルアミノプロパノール、ピペラ
ジン、モルホリン等のアミン類、第一鉄塩、亜硫酸塩、
チオ尿素、エリソルビン酸ナトリウム、ロンガリット等
があり、これらは二種以上併用してもよい。また、アゾ
系誘導体としては、２，２’−アゾビスイソブチルニト
リル、２，２’−アゾビス（２−メチルプロピオンアミ
ジン）ジヒドロクロライド、２，２’−アゾビス〔２−
メチル−Ｎ（ヒドロキシエチル）プロピオンアミド〕等
がある。As the polymerization catalyst, it is preferable to use an oxidizing agent alone, a combination of an oxidizing agent and a reducing agent, or an azo derivative, and it is particularly preferable that it is water-soluble. As the oxidizing agent, sodium, potassium, ammonium persulfate is desirable, and as the reducing agent, diethanolamine, triethanolamine, hydrazine, hydroxylamine, dimethylaminopropionitrile, diethylaminoethanol, dimethylaminopropanol, piperazine, morpholine, etc. Amines, ferrous salts, sulfites,
Examples thereof include thiourea, sodium erythorbate, and Rongalit, and these may be used in combination of two or more kinds. Further, as the azo derivative, 2,2'-azobisisobutylnitrile, 2,2'-azobis (2-methylpropionamidine) dihydrochloride, 2,2'-azobis [2-
Methyl-N (hydroxyethyl) propionamide] and the like.
【０００９】本発明の処理剤における、ポリエチレング
リコールモノアクリレート又はポリエチレングリコール
モノメタクリレートと架橋剤との重量比は、７０：３０
〜９８：２、特に８０：２０〜９０：１０であるのが好
ましい。架橋剤の使用量が３０％より多くなると、寸法
安定性の効果が悪くなり、逆に架橋剤の使用量が２％未
満では、木材中でのモノマー重合率が小さく、未反応モ
ノマーが残り易く、寸法安定性の持続性も低下する。In the treating agent of the present invention, the weight ratio of polyethylene glycol monoacrylate or polyethylene glycol monomethacrylate to the cross-linking agent is 70:30.
It is preferably from 98: 2, particularly from 80:20 to 90:10. When the amount of the cross-linking agent used is more than 30%, the effect of dimensional stability is deteriorated, and conversely, when the amount of the cross-linking agent used is less than 2%, the monomer polymerization rate in wood is small and unreacted monomers tend to remain. However, the sustainability of dimensional stability is also reduced.
【００１０】触媒の使用量は、ポリエチレングリコール
モノアクリレート又はポリエチレングリコールモノメタ
クリレートと架橋剤の合計重量に対し、0.５〜３％程度
でよく、１〜２％であるのが好ましい。なお、触媒の使
用量が0.５％未満では、モノマーが重合し難い。The amount of the catalyst used may be about 0.5 to 3%, preferably 1 to 2%, based on the total weight of polyethylene glycol monoacrylate or polyethylene glycol monomethacrylate and the crosslinking agent. When the amount of the catalyst used is less than 0.5%, the monomers are difficult to polymerize.
【００１１】なお、本発明の処理剤は、水溶液として使
用することが望ましく、その樹脂濃度は、特に限定され
ないが、１０〜３０重量％で使用するのがよい。The treating agent of the present invention is preferably used as an aqueous solution, and the resin concentration thereof is not particularly limited, but it is preferably 10 to 30% by weight.
【００１２】本発明による木材の処理方法は、前述の如
き処理剤を木材に付着させ、重合固着させるものであれ
ばよく、特に限定されないが、一般に、処理剤を水溶液
として、浸漬又は塗布法等で木材に付着させ、５０〜６
０℃の低温で乾燥した後、７０〜１５０℃の比較的高温
で、加熱重合するのがよい。The method for treating wood according to the present invention is not particularly limited as long as the above-mentioned treatment agent is adhered to the wood and polymerized and fixed, and is not particularly limited, but generally, the treatment agent is an aqueous solution, and a dipping or coating method is used. Attach to wood with 50 to 6
After drying at a low temperature of 0 ° C., it is preferable to heat-polymerize at a relatively high temperature of 70 to 150 ° C.
【００１３】かかる方法では、ポリエチレングリコール
モノアクリレート又はポリエチレングリコールモノメタ
クリレートが、水溶液で使用することにより、木材細胞
壁内に容易に入り、重合触媒の助けにより、重合して、
ポリマーとなり、その「嵩効果」により木材を膨潤状態
の寸法に保ったまま乾燥し、木材の寸法安定性が向上す
るものと考えられる。この際、ポリエチレングリコール
モノアクリレート又はポリエチレングリコールモノメタ
クリレートのみを使用したのでは、そのホモポリマー
は、経時的に木材細胞壁中から流出するため、十分な効
果を得ることができないが、本発明では、これらのモノ
マーを特定の架橋剤と併用することにより、寸法安定性
の経時的変化を非常に小さくすることができる。更に、
この架橋剤の併用により、三次元的にポリマーの鎖が伸
び、木材細胞壁からポリマーが流出し難くなり、重合率
も向上し、未反応モノマーも非常に少なくなるため、寸
法安定性の持続性も向上するものとなる。In such a method, polyethylene glycol monoacrylate or polyethylene glycol monomethacrylate, when used in an aqueous solution, easily enters the wood cell wall and polymerizes with the aid of a polymerization catalyst,
It becomes a polymer, and it is considered that owing to the "bulk effect", the wood is dried while keeping the size in the swollen state, and the dimensional stability of the wood is improved. At this time, if only polyethylene glycol monoacrylate or polyethylene glycol monomethacrylate is used, the homopolymer will flow out from the wood cell wall over time, so a sufficient effect cannot be obtained. By using the above monomer in combination with a specific cross-linking agent, the change in dimensional stability over time can be made extremely small. Furthermore,
By using this cross-linking agent together, the polymer chain is three-dimensionally stretched, the polymer does not easily flow out from the wood cell wall, the polymerization rate is improved, and the amount of unreacted monomer is greatly reduced, so that the dimensional stability is also maintained. It will be improved.
【００１４】[0014]
実施例１〜３、比較例１〜２ 表１に示す組成からなる処理剤（但し、モノマー１５％
水溶液に調製）に、スギの単板（１５０×１５０×１m
m）を１２時間浸漬、引き上げ、６０℃で７時間予備乾
燥後、１５０℃で１５分間熱処理した。処理後、単板を
秤量して、樹脂含有率（％）を求め、更に２０℃の水中
に１０時間浸漬して、膨潤率を測定した後、更に、この
単板を、引き続き６０℃の温水に３０日間浸漬した後、
再び膨潤率を測定した。これらの膨潤率は、寸法安定性
を示すＡＳＥ値として表１に示す。表１に示す通り、本
発明に従った実施例１〜３の処理剤で処理した製品は、
ＡＳＥ値が非常に高く、寸法安定性が極めて高く保たれ
るが、架橋剤を使用しない比較例１及びポリエチレング
リコールのみを使用した比較例２で処理した製品は、経
時変化により寸法安定性が著しく低下した。Examples 1 to 3 and Comparative Examples 1 to 2 A treating agent having the composition shown in Table 1 (however, 15% of the monomer was used.
Prepared in an aqueous solution), a single plate of cedar (150 x 150 x 1 m
m) was dipped for 12 hours, pulled up, pre-dried at 60 ° C. for 7 hours, and then heat-treated at 150 ° C. for 15 minutes. After the treatment, the veneer is weighed to determine the resin content (%), further dipped in water at 20 ° C. for 10 hours to measure the swelling rate, and then the veneer is further treated with hot water at 60 ° C. After soaking for 30 days in
The swelling rate was measured again. These swelling rates are shown in Table 1 as ASE values showing dimensional stability. As shown in Table 1, the products treated with the treating agents of Examples 1 to 3 according to the present invention were:
Although the ASE value is very high and the dimensional stability is kept extremely high, the products treated in Comparative Example 1 in which no cross-linking agent is used and Comparative Example 2 in which only polyethylene glycol is used have remarkable dimensional stability due to aging. Fell.
【００１５】[0015]
【表１】 [Table 1]
【００１６】実施例４ 実施例１で処理した単板を、１２mm厚の合板に、木工用
接着剤で貼り付け、表面に透明なウレタン塗料を塗装し
た後、６ヶ月間屋外に暴露し、塗膜の耐久性を調べた。
その結果、無処理の塗装材では、ほぼ２ヶ月で塗膜割れ
が生じ、４ヶ月では、試験体端部に塗膜の剥離が見られ
たのに対し、本実施例による塗装材は、６ヶ月経過後も
塗膜に何ら異変が認められなかった。Example 4 The veneer treated in Example 1 was attached to a 12 mm-thick plywood with an adhesive for woodworking, coated with a transparent urethane paint on the surface, and then exposed to the outdoors for 6 months and applied. The durability of the film was investigated.
As a result, in the untreated coating material, coating film cracking occurred in approximately 2 months, and peeling of the coating film was observed at the end of the test body in 4 months, whereas in the coating material according to this example, 6 No abnormality was observed in the coating film even after a lapse of months.
【００１７】[0017]
【発明の効果】本発明の処理剤により木材を処理する
と、安定して下記のような効果が得られる。 木材の持つ本来の特性を失うことなく、寸法安定性
が向上し、しかもその効果は長期的に持続する。 低含浸率で効果があり、しかも、処理が簡単である
ため、非常に経済的である。 水溶液で処理できるため、安全性が高い。 処理後、通常の木工塗料が塗装でき、しかも塗装木
材は屋外で使用しても、塗膜のひび割れ、剥がれが少な
く、持続性が向上するため、木材資源の有効活用ができ
る。When wood is treated with the treating agent of the present invention, the following effects can be stably obtained. Dimensional stability is improved without losing the original properties of wood, and its effect lasts for a long time. It has a low impregnation rate and is effective, and because it is easy to process, it is very economical. Highly safe as it can be treated with an aqueous solution. After the treatment, ordinary woodwork paint can be applied, and even if the painted wood is used outdoors, the paint film is less likely to crack or peel off, and the sustainability is improved, so that wood resources can be effectively utilized.
Claims (2)
レート及びポリエチレングリコールモノメタクリレート
から選ばれる少なくとも一種のモノマー、(2)ポリエチ
レングリコールジアクリレート、ポリエチレングリコー
ルジメタクリレート及びメチレンビスアクリルアミドか
ら選ばれる少なくとも一種の架橋剤、及び(3) 重合触媒
を含むことを特徴とする木材の寸法安定性を改質するた
めの処理剤。1. (1) at least one monomer selected from polyethylene glycol monoacrylate and polyethylene glycol monomethacrylate, (2) at least one cross-linking agent selected from polyethylene glycol diacrylate, polyethylene glycol dimethacrylate and methylenebisacrylamide, And (3) a treatment agent for modifying the dimensional stability of wood, which comprises a polymerization catalyst.
レート及びポリエチレングリコールモノメタクリレート
から選ばれる少なくとも一種のモノマー、(2)ポリエチ
レングリコールジアクリレート、ポリエチレングリコー
ルジメタクリレート及びメチレンビスアクリルアミドか
ら選ばれる少なくとも一種の架橋剤、及び(3) 重合触媒
を含む処理剤を、木材に付着させ、重合固着させること
を特徴とする木材の寸法安定性を改質するための処理方
法。2. (1) at least one monomer selected from polyethylene glycol monoacrylate and polyethylene glycol monomethacrylate, (2) at least one cross-linking agent selected from polyethylene glycol diacrylate, polyethylene glycol dimethacrylate and methylenebisacrylamide, And (3) A treatment method for modifying the dimensional stability of wood, which comprises adhering a polymerization agent containing a polymerization catalyst to wood and polymerizing and fixing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5690692A JPH05220712A (en) | 1992-02-06 | 1992-02-06 | Treating agent and treating method for improving dimensional stability of wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5690692A JPH05220712A (en) | 1992-02-06 | 1992-02-06 | Treating agent and treating method for improving dimensional stability of wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05220712A true JPH05220712A (en) | 1993-08-31 |
Family
ID=13040498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5690692A Pending JPH05220712A (en) | 1992-02-06 | 1992-02-06 | Treating agent and treating method for improving dimensional stability of wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05220712A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5731096A (en) * | 1995-08-04 | 1998-03-24 | Hydro-Quebec | Permanent decrease of wood hardness by in situ polymerization of pre-polymers |
| WO2001087560A1 (en) * | 2000-05-15 | 2001-11-22 | HYDRO-QUéBEC | Permanent decrease of wood hardness |
| JP2004098362A (en) * | 2002-09-06 | 2004-04-02 | Nippon Shokubai Co Ltd | Wood imprepnation composition |
| EP1908562A2 (en) | 2006-07-20 | 2008-04-09 | Yamaha Corporation | Method of forming a wooden mold as well as wooden structure, vehicle interior material, and acoustic structure processed by the method |
| WO2008069684A3 (en) * | 2006-12-04 | 2008-07-31 | George William Mason John Brod | Modification of wood with hydrophilic prepolymers |
| CN105082284A (en) * | 2015-07-15 | 2015-11-25 | 师斌 | High-end-wood stabilizing seamless mirror treating agent and preparing method thereof |
| CN110744659A (en) * | 2019-10-30 | 2020-02-04 | 马鞍山市谷庆门业有限公司 | Wooden door processing method for accelerating drying speed of wooden door paint |
-
1992
- 1992-02-06 JP JP5690692A patent/JPH05220712A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5731096A (en) * | 1995-08-04 | 1998-03-24 | Hydro-Quebec | Permanent decrease of wood hardness by in situ polymerization of pre-polymers |
| WO2001087560A1 (en) * | 2000-05-15 | 2001-11-22 | HYDRO-QUéBEC | Permanent decrease of wood hardness |
| JP2004098362A (en) * | 2002-09-06 | 2004-04-02 | Nippon Shokubai Co Ltd | Wood imprepnation composition |
| EP1908562A2 (en) | 2006-07-20 | 2008-04-09 | Yamaha Corporation | Method of forming a wooden mold as well as wooden structure, vehicle interior material, and acoustic structure processed by the method |
| WO2008069684A3 (en) * | 2006-12-04 | 2008-07-31 | George William Mason John Brod | Modification of wood with hydrophilic prepolymers |
| US20100068543A1 (en) * | 2006-12-04 | 2010-03-18 | Zelam Limited | Modification of wood with hydrophilic prepolymers |
| AU2007328546B2 (en) * | 2006-12-04 | 2011-04-21 | Zelam Limited | Modification of wood with hydrophilic prepolymers |
| US8252426B2 (en) | 2006-12-04 | 2012-08-28 | Zelam Limited | Modification of wood with hydrophilic prepolymers |
| CN105082284A (en) * | 2015-07-15 | 2015-11-25 | 师斌 | High-end-wood stabilizing seamless mirror treating agent and preparing method thereof |
| CN110744659A (en) * | 2019-10-30 | 2020-02-04 | 马鞍山市谷庆门业有限公司 | Wooden door processing method for accelerating drying speed of wooden door paint |
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