JP3299202B2 - Preparation of wood impregnated with flame-retardant polymer - Google Patents
Preparation of wood impregnated with flame-retardant polymerInfo
- Publication number
- JP3299202B2 JP3299202B2 JP32536198A JP32536198A JP3299202B2 JP 3299202 B2 JP3299202 B2 JP 3299202B2 JP 32536198 A JP32536198 A JP 32536198A JP 32536198 A JP32536198 A JP 32536198A JP 3299202 B2 JP3299202 B2 JP 3299202B2
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- JP
- Japan
- Prior art keywords
- flame
- retardant
- acid
- wood
- acrylic
- 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.)
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- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、寸法安定性及び生
活環境性に優れた難燃性重合体含浸木材の製法に属す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a flame-retardant polymer-impregnated wood excellent in dimensional stability and living environment.
【０００２】[0002]
【従来の技術】例えば、特開平５−７７２０７号公報に
示されるように、寸法安定性、難燃性を付与した難燃化
木材は公知である。この難燃化木材は、リン酸アンモニ
ウム、リン酸グアニジン、ポリリン酸とアンモニアの混
合物等のリン酸化合物及びジシアンジアミドの少なくと
も一方を含む難燃剤とユリヤとホルマリンを含む難燃化
薬液の水性溶液を減圧加圧注入法等を用いて含浸させ
る。木材は、例えば、杉、赤松、唐松、檜、栂等で代表
される針葉樹、ブナ、樫、楢、マカンバ、シイノ木、ラ
ワン、アピトン等で代表される広葉樹から選択される。
難燃化用薬液を含浸させた加工木材は、高含水率の木材
にも含浸され易く、処理後の木材に不自然な発色がなく
無害性で、また木質感を損なわない。処理された加工木
材は極めて高い難燃性を示すとともに、割裂し難く、こ
のため見栄えが良く、耐久性に優れている。また、防
腐、防蟻効果も高い。2. Description of the Related Art As shown in, for example, Japanese Patent Application Laid-Open No. 5-77207, flame-retardant wood having dimensional stability and flame retardancy is known. This flame retardant wood is decompressed with an aqueous solution of a flame retardant containing at least one of a phosphate compound such as ammonium phosphate, guanidine phosphate, a mixture of polyphosphoric acid and ammonia and dicyandiamide and a flame retardant chemical solution containing urea and formalin. Impregnation is performed using a pressure injection method or the like. The wood is selected from, for example, conifers represented by cedar, red pine, karamatsu, hinoki, toga, etc., and broadleaf trees represented by beech, oak, oak, makanba, shiino tree, lauan, apiton, etc.
Processed wood impregnated with the flame retardant chemical is easily impregnated with high moisture content wood, and the treated wood has no unnatural coloration, is harmless, and does not impair the woody feel. The processed wood has an extremely high flame retardancy and is hard to split, so that it has good appearance and excellent durability. It also has high antiseptic and ant-control effects.
【０００３】特開平６−１４３２０９号公報は、難燃性
を保持しかつ寸法安定性を改善した改質木材の製法を示
す。この製法では、原料木材に含浸した２種以上の水溶
性化合物の反応生成物である不溶性不燃性化合物が定着
し、２個以上のアルデヒド基を有する化合物で原料木材
の水酸基間を架橋した変性木材をホルムアルデヒド誘導
体の蒸気雰囲気中でかつ酸触媒の存在下で加熱してホル
マール化する。原料木材内に不溶性不燃性化合物を生成
して定着させるので、不溶性不燃性化合物によって原料
木材の難燃性が向上する。また、２個のアルデヒド基を
有する化合物では木材成分の親水性水酸基間を架橋す
る。ホルマール化より先に２個以上のアルデヒド基を有
する化合物を含浸すると、ホルマール化のみの場合に比
較して、木材成分の親水性水酸基の架橋が増大し、木材
成分の親水性水酸基の架橋が増大して、木材の親水性が
低減し、寸法安定性が向上する。上記不溶性不燃性化合
物の定着と２個以上のアルデヒド基を有する化合物が架
橋した変性木材に、ホルマール化処理をすると、ホルム
アルデヒド誘導体の蒸気は変性木材内に不溶性不燃性化
合物と２個以上のアルデヒド基を有する化合物が存在し
ても、浸透が阻害されずに変性木材内に拡散され、ホル
マール化が施され、難燃性と寸法安定性に優れた改質木
材が得られる。Japanese Patent Application Laid-Open No. 6-143209 discloses a method for producing modified wood having flame retardancy and improved dimensional stability. In this manufacturing method, a modified wood in which an insoluble incombustible compound, which is a reaction product of two or more water-soluble compounds impregnated in a raw wood, is fixed and a hydroxyl group of the raw wood is crosslinked with a compound having two or more aldehyde groups. Is formalized by heating in the vapor atmosphere of a formaldehyde derivative and in the presence of an acid catalyst. Since the insoluble and non-flammable compound is generated and fixed in the raw wood, the flame resistance of the raw wood is improved by the insoluble non-flammable compound. Further, a compound having two aldehyde groups crosslinks between hydrophilic hydroxyl groups of a wood component. When the compound having two or more aldehyde groups is impregnated before formalization, the crosslinking of the hydrophilic hydroxyl groups of the wood component increases, and the crosslinking of the hydrophilic hydroxyl groups of the wood component increases, as compared with the case of only formalization. Thus, the hydrophilicity of the wood is reduced, and the dimensional stability is improved. When the modified wood in which the insoluble incombustible compound is fixed and the compound having two or more aldehyde groups is crosslinked is subjected to a formalization treatment, the vapor of the formaldehyde derivative causes the insoluble incombustible compound and two or more aldehyde groups to be present in the modified wood. Even if a compound having the formula (1) is present, the compound is diffused into the modified wood without impairment of permeation, is subjected to formalization, and the modified wood having excellent flame retardancy and dimensional stability is obtained.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前記の
従来技術では、防腐性及び防蟻性に優れたホルムアルデ
ヒドを使用すると、ホルムアルデヒドの残査が木材中に
残り、ホルムアルデヒドの毒性が環境及び人体に対して
好ましくない。また、重合反応が不十分になりやすく、
寸法安定性に欠ける欠点がある。本発明は寸法安定性及
び生活環境性に優れた難燃性重合体含浸木材の製法を提
供することを目的とする。However, in the above-mentioned prior art, when formaldehyde having excellent antiseptic and termite-proof properties is used, the residue of formaldehyde remains in the wood, and the toxicity of formaldehyde is reduced to the environment and the human body. Is not preferred. Also, the polymerization reaction tends to be insufficient,
There is a disadvantage of lacking dimensional stability. An object of the present invention is to provide a method for producing a flame-retardant polymer-impregnated wood excellent in dimensional stability and living environment.
【０００５】[0005]
【課題を解決するための手段】本発明による難燃性重合
体含浸木材の製法は、難燃性物質と水とを混合して難燃
性液体を作る工程と、アクリル酸、アクリル酸エステ
ル、メタクリル酸及びメタクリル酸エステルのモノマー
並びにオリゴマーの１種又は２種以上の液体中に、平均
粒径０.００１ｍｍ〜０.５ｍｍの粒状のアクリル樹脂
（アクリルアミド類を除く）、スチレンアクリル樹脂及
びエポキシアクリル樹脂の１種又は２種以上とを混合し
て溶解させ、アクリル系液体混合物を作る工程と、難燃
性液体を木材中に含浸させた後、木材を乾燥させる工程
と、乾燥した木材中にアクリル系液体混合物を含浸させ
て、アクリル系液体混合物を木材中で重合させ硬化させ
る工程とを含む。According to the present invention, there is provided a method for producing a flame-retardant polymer-impregnated wood, comprising the steps of: mixing a flame-retardant substance with water to form a flame-retardant liquid; In one or more liquids of methacrylic acid and methacrylic acid ester monomers and oligomers, a granular acrylic resin (excluding acrylamides) having an average particle diameter of 0.001 mm to 0.5 mm, styrene acrylic resin and epoxy acrylic Mixing and dissolving one or more of the resins to form an acrylic liquid mixture, impregnating the flame-retardant liquid into the wood, drying the wood, and drying the wood. Impregnating the acrylic liquid mixture and polymerizing and curing the acrylic liquid mixture in wood.
【０００６】火災に抵抗力のある難燃性物資を含むた
め、火災に対し抵抗力があり、アクリル系重合体を使用
するため、寸法が安定しかつ生活環境に悪影響を与えな
い。平均粒径０.５ｍｍ以下、好ましくは平均粒径０.０
０１ｍｍ〜０.１ｍｍ以下の粒状のアクリル樹脂（アク
リルアミド類を除く）を含むアクリル系液体混合物の重
合反応を行うので、粒状のアクリル樹脂を核として重合
反応が短時間に終了する。[0006] Since it contains a fire-resistant flame-retardant material, it is fire-resistant, and since an acrylic polymer is used, its dimensions are stable and its living environment is not adversely affected. Average particle size 0.5 mm or less, preferably average particle size 0.0
Since the polymerization reaction of an acrylic liquid mixture containing a granular acrylic resin (excluding acrylamides) of from 01 mm to 0.1 mm or less is performed, the polymerization reaction is completed in a short time with the granular acrylic resin as a nucleus.
【０００７】[0007]
【発明の実施の形態】本発明を具体的に実施例、比較例
で説明する。配合百分率は重量基準である。本発明の実
施の形態で使用する難燃性物質は、リン酸水素アルミニ
ウム、リン酸水素カルシウム、リン酸水素マグネシウ
ム、塩化亜鉛、塩化アンチモン、硫酸アンチモン、水酸
化アルミニウムから選択された１種又は２種以上の難燃
性金属塩又はリン酸、ポリメタリン酸、炭酸、硫酸、珪
酸、アンチモン酸及び硼酸から選択された１種又は２種
以上のアルミニウム、カルシウム並びにマグネシウム塩
から選択された１種又は２種以上の難燃性無機物質であ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described with reference to Examples and Comparative Examples. Blending percentages are by weight. The flame retardant used in the embodiment of the present invention is one or two selected from aluminum hydrogen phosphate, calcium hydrogen phosphate, magnesium hydrogen phosphate, zinc chloride, antimony chloride, antimony sulfate, and aluminum hydroxide. At least one flame retardant metal salt or at least one selected from phosphoric acid, polymetaphosphoric acid, carbonic acid, sulfuric acid, silicic acid, antimonic acid and boric acid, at least one selected from aluminum, calcium and magnesium salts More than one kind of flame retardant inorganic substance.
【０００８】アクリル酸、アクリル酸エステル、メタク
リル酸、メタクリル酸エステルのオリゴマーの分子量は
２００〜５０００程度で、側鎖、末端にアクリロイル基
又はメタクリロイル基の不飽和結合を１〜数個有し、例
えば東亞合成化学工業社製「アロニックス」、大日本イ
ンキ化学工業社製「モノサイザー」を使用することがで
きる。アクリル酸、アクリル酸エステル、メタクリル
酸、メタクリル酸エステルのモノマーに対するアクリル
樹脂、スチレンアクリル樹脂、エポキシアクリル樹脂の
濃度は５〜１００％であり、好ましくは３０〜６０％で
ある。５％に満たないと寸法安定性が劣る。The oligomers of acrylic acid, acrylic acid ester, methacrylic acid, and methacrylic acid ester have a molecular weight of about 200 to 5,000, and have one or several unsaturated bonds of acryloyl group or methacryloyl group at the side chain and terminal. "Aronix" manufactured by Toagosei Chemical Industry Co., Ltd. and "Monosizer" manufactured by Dainippon Ink & Chemicals, Inc. can be used. The concentration of the acrylic resin, styrene acrylic resin, or epoxy acrylic resin with respect to the monomers of acrylic acid, acrylic acid ester, methacrylic acid, and methacrylic acid ester is 5 to 100%, preferably 30 to 60%. If it is less than 5%, the dimensional stability is poor.
【０００９】アクリル系重合体は、アクリル酸、アクリ
ル酸エステル、メタクリル酸、メタクリル酸エステルの
モノマー及びオリゴマーの１種又は２種以上と、アクリ
ル樹脂、スチレンアクリル樹脂及びエポキシアクリル樹
脂の１種又は２種以上との重合物である。The acrylic polymer includes one or more of acrylic acid, acrylic acid ester, methacrylic acid, methacrylic acid ester monomer and oligomer, and one or more of acrylic resin, styrene acrylic resin and epoxy acrylic resin. It is a polymer with more than one species.
【００１０】難燃性液体は、リン酸水素アルミニウム、
リン酸水素カルシウム、リン酸水素マグネシウム、塩化
亜鉛、塩化アンチモン、硫酸アンチモン、水酸化アルミ
ニウム等の難燃性物質を水に溶解させた水溶液又はリン
酸、ポリメタリン酸、炭酸、硫酸、珪酸、アンチモン
酸、硼酸のアルミニウム、カルシウム、マグネシウム塩
の難燃性物質を水に懸濁させた懸濁液である。リン酸水
素アルミニウム、リン酸水素カルシウム、リン酸水素マ
グネシウム、塩化亜鉛、塩化アンチモン、硫酸アンチモ
ン及び水酸化アルミニウムから選択された難燃性物質を
水に溶解させる濃度は３〜２０％であり、好ましくは５
〜１５％である。難燃性物質の濃度が３％に満たないと
難燃性が劣り、２０％以上では難燃性の効果は同等であ
るが、接着性が低下する。リン酸、ポリメタリン酸、炭
酸、硫酸、珪酸、アンチモン酸、硼酸のアルミニウム、
カルシウム、マグネシウム塩等の難燃性物質を水に懸濁
させる濃度は５〜２０％であり、好ましくは１０〜１５
％である。難燃性物質の濃度が５％に満たないと難燃性
が劣り、２０％を超えると難燃性効果は同等であるが、
接着性が低下する。The flame retardant liquid is aluminum hydrogen phosphate,
An aqueous solution in which a flame-retardant substance such as calcium hydrogen phosphate, magnesium hydrogen phosphate, zinc chloride, antimony chloride, antimony sulfate, and aluminum hydroxide is dissolved in water or phosphoric acid, polymetaphosphoric acid, carbonic acid, sulfuric acid, silicic acid, antimonic acid , A suspension of aluminium, calcium, and magnesium salts of boric acid in water. The concentration at which the flame retardant selected from aluminum hydrogen phosphate, calcium hydrogen phosphate, magnesium hydrogen phosphate, zinc chloride, antimony chloride, antimony sulfate and aluminum hydroxide is dissolved in water is preferably 3 to 20%. Is 5
~ 15%. If the concentration of the flame-retardant substance is less than 3%, the flame retardancy is inferior. If the concentration is more than 20%, the effect of the flame retardancy is the same, but the adhesiveness is reduced. Phosphoric acid, polymetaphosphoric acid, carbonic acid, sulfuric acid, silicic acid, antimonic acid, aluminum borate,
The concentration at which a flame-retardant substance such as a calcium or magnesium salt is suspended in water is 5 to 20%, preferably 10 to 15%.
%. If the concentration of the flame retardant is less than 5%, the flame retardancy is poor, and if it exceeds 20%, the flame retardant effect is the same,
Adhesion decreases.
【００１１】アクリル系液体混合物はアクリル酸、アク
リル酸エステル、メタクリル酸及びメタクリル酸エステ
ルのモノマー又はオリゴマーの１種又は２種以上と、ア
クリル樹脂、スチレンアクリル樹脂及びエポキシアクリ
ル樹脂から選択される１種又は２種以上との混合物であ
り、酸価は５〜７８０、好ましくは２０〜６００であ
る。酸価が５に満たないとき又は７８０を超えると、木
材と樹脂分との接着性及び寸法安定性が低下する。難燃
性物質の金属とモノマー、オリゴマーと樹脂の混合物の
酸成分と反応し、木材と樹脂分との接着性を良くすると
共に、難燃性の効果が向上する。アクリル酸エステルモ
ノマーは、アクリル酸メチル、アクリル酸エチル、アク
リル酸ｎ−ブチルを使用できる。メタクリル酸エステル
モノマーは、メタクリル酸メチル、メタクリル酸エチ
ル、メタクリル酸ｎ−ブチル、メタクリル酸エチレング
リコール、メタクリル酸ベンジル、メタクリル酸ジメチ
ルアミノエチルを使用できる。The acrylic liquid mixture is one or more of acrylic acid, acrylic acid ester, methacrylic acid and methacrylic acid ester monomer or oligomer, and one kind selected from acrylic resin, styrene acrylic resin and epoxy acrylic resin. Alternatively, it is a mixture with two or more kinds, and has an acid value of 5 to 780, preferably 20 to 600. When the acid value is less than 5 or exceeds 780, the adhesiveness between the wood and the resin component and the dimensional stability decrease. It reacts with the metal of the flame retardant and the acid component of the mixture of the monomer and the oligomer and the resin, thereby improving the adhesiveness between the wood and the resin component and improving the flame retardant effect. As the acrylate monomer, methyl acrylate, ethyl acrylate, and n-butyl acrylate can be used. As the methacrylate monomer, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, ethylene glycol methacrylate, benzyl methacrylate, and dimethylaminoethyl methacrylate can be used.
【００１２】難燃性液体中に木材を浸漬して、木材を減
圧し若しくはマイクロ波を加え又は難燃性液体を加圧若
しくは加温して、難燃性物質を木材中に含浸する。その
後、アクリル系液体混合物中に木材を浸漬して、木材を
減圧し若しくはマイクロ波を加え又は難燃性液体を加圧
若しくは加温して、アクリル系液体混合物を木材中に含
浸した後、加熱下で重合反応及び樹脂化を行い、アクリ
ル系液体混合物を硬化させる。Wood is immersed in a flame-retardant liquid, and the wood is impregnated with the flame-retardant substance by depressurizing or applying microwaves or pressurizing or heating the flame-retardant liquid. Thereafter, the wood is immersed in the acrylic liquid mixture, and the wood is decompressed or microwaved or the flame-retardant liquid is pressurized or heated to impregnate the acrylic liquid mixture into the wood and then heated. The polymerization reaction and the resinization are performed below, and the acrylic liquid mixture is cured.
【００１３】加熱によりアクリル系液体混合物を硬化さ
せる際に、メチルエチルケトンペルオキシド、ｔ−ブチ
ルヒドロペルオキシド、キュメンヒドロペルオキシド、
ジ−ｔ−ブチルヒドロペルオキシド、アゾビスイソブチ
ルニトリル等の重合開始剤を使用してもよい。また、難
燃性重合体含浸木材の耐候性及び耐久性を向上するた
め、難燃性液体又はアクリル系液体混合物に酸化防止
剤、紫外線吸収剤を添加してもよい。本発明の前記実施
の形態は変更が可能である。例えば、難燃性物質はアク
リル系重合体を構成する物質と部分的に反応してもしな
くてもよい。アクリル系液体混合物に揮発性溶剤を混入
してもよい。When the acrylic liquid mixture is cured by heating, methyl ethyl ketone peroxide, t-butyl hydroperoxide, cumene hydroperoxide,
A polymerization initiator such as di-t-butyl hydroperoxide and azobisisobutylnitrile may be used. Further, in order to improve the weather resistance and durability of the flame-retardant polymer-impregnated wood, an antioxidant and an ultraviolet absorber may be added to the flame-retardant liquid or the acrylic liquid mixture. The embodiments of the present invention can be modified. For example, the flame retardant material may or may not partially react with the material constituting the acrylic polymer. A volatile solvent may be mixed in the acrylic liquid mixture.
【００１４】[0014]
【実施例】以下、本発明の実施例を具体的に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below.
【００１５】［例１］リン酸水素カルシウム５部、水９
５部を溶解撹拌して難燃性液体９９部を得た。また、ア
クリル酸エチル６８部、アクリル樹脂３０部、アゾビス
イソブチルニトリル２部を溶解撹拌し、酸価２５のアク
リル系液体混合物９９部を得た。厚さ１ｍｍ、幅１０５
ｍｍ、長さ５００ｍｍのベイツガ板目材を含浸装置に入
れ、３０トールで３０分間減圧処理した後、難燃性液体
をベイツガ板目材内に注入し１５分間放置した。次に、
室内で２４時間放置した後、１０５℃の熱乾燥機中で１
２時間乾燥した。続いて、ベイツガ板目材を含浸装置に
入れ、３０トールで３０分間減圧処理した後、アクリル
系液体混合物をベイツガ板目材内に注入して、１５分間
放置した。更に、室内で２４時間放置した後、１０５℃
の熱乾燥機中で１２時間、アクリル系液体混合物を重合
し、硬化させて難燃性重合体含浸木材を発明品１として
製造した。Example 1 Calcium hydrogen phosphate 5 parts, water 9
Five parts were dissolved and stirred to obtain 99 parts of a flame-retardant liquid. Also, 68 parts of ethyl acrylate, 30 parts of acrylic resin and 2 parts of azobisisobutylnitrile were dissolved and stirred to obtain 99 parts of an acrylic liquid mixture having an acid value of 25. Thickness 1mm, width 105
A hemlock material having a length of 500 mm and a length of 500 mm was placed in an impregnating apparatus, subjected to a pressure reduction treatment at 30 Torr for 30 minutes, and then a flame-retardant liquid was injected into the hemlock material and allowed to stand for 15 minutes. next,
After leaving it indoors for 24 hours, it was placed in a 105 ° C heat dryer for 1 hour.
Dried for 2 hours. Subsequently, the hemlock material was placed in an impregnating device, and subjected to a pressure reduction treatment at 30 Torr for 30 minutes. Then, an acrylic liquid mixture was injected into the hemlock material and allowed to stand for 15 minutes. Furthermore, after leaving it indoors for 24 hours,
The acrylic liquid mixture was polymerized and cured in a heat dryer for 12 hours to produce a flame-retardant polymer-impregnated wood as Invention 1.
【００１６】［例２］ 硫酸アンチモン１５部、水８５部を溶解撹拌して、難燃
性液体９９部を得ると共に、オリゴマー・アロニックス
Ｍ−５５００・３８部、スチレンアクリル樹脂６０部、
ｔ−ブチルヒドロペルオキシド２部を溶解撹拌して、酸
価２３０のアクリル系液体混合物９９部を得た。例１と
同様の方法及び同様の条件で、難燃性液体と、アクリル
系液体混合物をベイツガ板目材内に含浸して、重合反応
を行い、発明品２として難燃性重合体含浸木材を製造し
た。Example 2 15 parts of antimony sulfate and 85 parts of water were dissolved and stirred to obtain 99 parts of a flame-retardant liquid, 38 parts of Oligo-Aronix M-5500, 60 parts of styrene acrylic resin,
2 parts of t-butyl hydroperoxide was dissolved and stirred to obtain 99 parts of an acrylic liquid mixture having an acid value of 230. A flame-retardant liquid and an acrylic liquid mixture were impregnated in a Batesga wood panel material in the same manner and under the same conditions as in Example 1 to carry out a polymerization reaction, and a flame-retardant polymer-impregnated wood as Invention 2 was obtained. Manufactured.
【００１７】［例３］硼酸カルシウム１０部、水９０部
を懸濁撹拌し難燃性液体９９部を得ると共に、メタクリ
ル酸エチレングリコール４８部、アクリル樹脂５０部、
ｔ−ブチルヒドロペルオキシド２部を溶解撹拌して、酸
価５２のアクリル系液体混合物９９部を得た。例１と同
様の方法及び同様の条件で、難燃性液体と、アクリル系
液体混合物をベイツガ板目材内に含浸して、重合反応を
行い、発明品３として難燃性重合体含浸木材を製造し
た。Example 3 10 parts of calcium borate and 90 parts of water are suspended and stirred to obtain 99 parts of a flame-retardant liquid, and 48 parts of ethylene glycol methacrylate, 50 parts of an acrylic resin,
2 parts of t-butyl hydroperoxide was dissolved and stirred to obtain 99 parts of an acrylic liquid mixture having an acid value of 52. A flame-retardant liquid and an acrylic liquid mixture were impregnated into a bait gauze panel material in the same manner and under the same conditions as in Example 1 to carry out a polymerization reaction. Manufactured.
【００１８】［例４］比較品１として無処理木材を作成
した。Example 4 Untreated wood was prepared as Comparative Example 1.
【００１９】［例５］厚さ１ｍｍ、幅１０５ｍｍ、長さ
５００ｍｍのベイツガ板目材を含浸装置に入れ、３０ト
ールで３０分間減圧処理した後、メチルメタアクリレー
ト９８部、ｔ−ブチルヒドロペルオキシド２部の混合物
含浸剤を注入し１５分間放置した。その後１５ｋｇ／ｃ
ｍ2に加圧し３時間放置した。次いで、室内で２４時間
放置した後、１０５℃の熱乾燥機中で１２時間、含浸剤
を重合硬化させ重合体含浸木材を比較品２として製造し
た。表１に示すように、得られた発明品１〜３の寸法安
定化率は６１％、５０％及び６４％で、いずれも比較品
１の０％及び比較品２の３６％より高く、難燃試験にも
合格した。比較品１及び２の寸法安定化率は０％及び３
６％で、難燃試験は不合格であった。[Example 5] A sheet of bait gauze having a thickness of 1 mm, a width of 105 mm and a length of 500 mm was placed in an impregnating apparatus, subjected to a reduced pressure treatment at 30 torr for 30 minutes, and then 98 parts of methyl methacrylate and t-butyl hydroperoxide 2 Of the mixture impregnating agent were injected and left for 15 minutes. Then 15kg / c
It was pressurized to m 2 and left for 3 hours. Next, after standing in a room for 24 hours, the impregnating agent was polymerized and cured in a heat dryer at 105 ° C. for 12 hours to produce polymer-impregnated wood as Comparative Product 2. As shown in Table 1, the dimensional stabilization rates of the obtained invention products 1 to 3 were 61%, 50% and 64%, which were all higher than 0% of the comparison product 1 and 36% of the comparison product 2, and were difficult. It also passed the fire test. The dimensional stabilization rates of Comparative Products 1 and 2 are 0% and 3
At 6%, the flame retardancy test failed.
【００２０】［例６］得られた発明品１〜５並びに比較
品１及び２の寸法安定率を測定すると共に、難燃試験を
行った。寸法安定化率（％）は、無処理材、処理材を減
圧し、水を注入加圧した後、２日間放置し寸法測定し、
更に１０５℃で１２時間乾燥した後、寸法を測定し、両
者の収縮率から下式により算出した。Example 6 The dimensional stability of the obtained invention products 1 to 5 and comparative products 1 and 2 were measured, and a flame retardancy test was performed. The dimensional stabilization rate (%) is as follows.
After further drying at 105 ° C. for 12 hours, the dimensions were measured and calculated from the shrinkage ratios of both by the following formula.
【００２１】[0021]
【数１】 (Equation 1)
【００２２】難燃性は、ＪＩＳ−Ａ−１３２１の規定に
基づき６分間の表面燃焼試験を行い、難燃３級の規格で
合否を判定した。For the flame retardancy, a surface combustion test was conducted for 6 minutes in accordance with the provisions of JIS-A-1321, and a pass / fail judgment was made based on the flame retardant class 3 standard.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【発明の効果】本発明では、寸法安定性及び生活環境性
に優れた難燃性重合体含浸木材の製法が得られ、火災及
び地震等の天災に対し抵抗力のある建築物を構築するこ
とができる。According to the present invention, it is possible to obtain a method for producing flame-retardant polymer-impregnated wood having excellent dimensional stability and living environment, and to construct a building resistant to natural disasters such as fires and earthquakes. Can be.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B27K 3/00 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) B27K 3/00
Claims (4)
を作る工程と、 アクリル酸、アクリル酸エステル、メタクリル酸及びメ
タクリル酸エステルのモノマー並びにオリゴマーの１種
又は２種以上の液体中に、平均粒径０.００１ｍｍ〜０.
５ｍｍの粒状のアクリル樹脂（アクリルアミド類を除
く）、スチレンアクリル樹脂及びエポキシアクリル樹脂
の１種又は２種以上とを混合して溶解させ、アクリル系
液体混合物を作る工程と、 難燃性液体を木材中に含浸させた後、木材を乾燥させる
工程と、 乾燥した木材中にアクリル系液体混合物を含浸させて、
アクリル系液体混合物を木材中で重合させ硬化させる工
程とを含むことを特徴とする難燃性重合体含浸木材の製
法。1. A step of mixing a flame-retardant substance and water to form a flame-retardant liquid, comprising one or more of acrylic acid, acrylic acid ester, methacrylic acid and methacrylic acid ester monomers and oligomers. In the liquid, the average particle diameter is 0.001 mm to 0.001 mm.
5 mm granular acrylic resin (excluding acrylamides), one or two or more of styrene acrylic resin and epoxy acrylic resin are mixed and dissolved to form an acrylic liquid mixture; After impregnating the inside, drying the wood, impregnating the dried wood with the acrylic liquid mixture,
Polymerizing the acrylic liquid mixture in the wood and curing the wood in the flame-retardant polymer-impregnated wood.
ム、リン酸水素カルシウム、リン酸水素マグネシウム、
塩化亜鉛、塩化アンチモン、硫酸アンチモン及び水酸化
アルミニウムから選択された１種又は２種以上の難燃性
金属塩を水に溶解させた水溶液である請求項１に記載の
難燃性重合体含浸木材の製法。2. The flame-retardant liquid comprises aluminum hydrogen phosphate, calcium hydrogen phosphate, magnesium hydrogen phosphate,
The flame-retardant polymer-impregnated wood according to claim 1, which is an aqueous solution in which one or more flame-retardant metal salts selected from zinc chloride, antimony chloride, antimony sulfate and aluminum hydroxide are dissolved in water. Recipe.
酸、炭酸、硫酸、珪酸、アンチモン酸及び硼酸から選択
された１種又は２種以上の酸のアルミニウム、カルシウ
ム並びにマグネシウム塩から選択された１種又は２種以
上の難燃性無機物質を水に懸濁させた懸濁液である請求
項１に記載の難燃性重合体含浸木材の製法。3. The flame-retardant liquid is selected from aluminum, calcium and magnesium salts of one or more acids selected from phosphoric acid, polymetaphosphoric acid, carbonic acid, sulfuric acid, silicic acid, antimonic acid and boric acid. The method for producing a flame-retardant polymer-impregnated wood according to claim 1, which is a suspension in which one or more flame-retardant inorganic substances are suspended in water.
０である請求項１〜３の何れか１項に記載の難燃性重合
体含浸木材の製法。4. The acrylic liquid mixture has an acid value of 5-78.
The method for producing a flame-retardant polymer-impregnated wood according to any one of claims 1 to 3, which is 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32536198A JP3299202B2 (en) | 1998-11-16 | 1998-11-16 | Preparation of wood impregnated with flame-retardant polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32536198A JP3299202B2 (en) | 1998-11-16 | 1998-11-16 | Preparation of wood impregnated with flame-retardant polymer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000141318A JP2000141318A (en) | 2000-05-23 |
| JP3299202B2 true JP3299202B2 (en) | 2002-07-08 |
Family
ID=18175977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32536198A Expired - Fee Related JP3299202B2 (en) | 1998-11-16 | 1998-11-16 | Preparation of wood impregnated with flame-retardant polymer |
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| Country | Link |
|---|---|
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100679330B1 (en) | 2005-07-18 | 2007-02-06 | 주식회사 서한안타민 | Manufaturing method of incombustible impregnated decorative veneer and incombustible plywood manufactured by the impregnated decorative veneer |
| CN107000245A (en) * | 2014-12-23 | 2017-08-01 | 陶氏环球技术有限责任公司 | Porous material through processing |
-
1998
- 1998-11-16 JP JP32536198A patent/JP3299202B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2000141318A (en) | 2000-05-23 |
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