JPS63132001A - Manufacture of improved wood - Google Patents
Manufacture of improved woodInfo
- Publication number
- JPS63132001A JPS63132001A JP28043486A JP28043486A JPS63132001A JP S63132001 A JPS63132001 A JP S63132001A JP 28043486 A JP28043486 A JP 28043486A JP 28043486 A JP28043486 A JP 28043486A JP S63132001 A JPS63132001 A JP S63132001A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- water
- soluble inorganic
- impregnated
- insoluble
- 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 description 57
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000126 substance Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 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 5
- 239000003063 flame retardant Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 229910010272 inorganic material Inorganic materials 0.000 description 4
- 239000011147 inorganic material Substances 0.000 description 4
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 3
- 229910001626 barium chloride Inorganic materials 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 241000218645 Cedrus Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000004254 Ammonium phosphate Substances 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
- 241000238631 Hexapoda Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000000051 modifying effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔技術分野〕
この発明は、建材等として用いられる改質木材の製法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for producing modified wood used as building materials and the like.
天然の木材を改質して種々の特性を賦与し、あるいは改
善しようとする試みはこれまでも数多くなされてきた。Many attempts have been made to modify natural wood to impart or improve various properties.
たとえば以下のような技術が知られている。For example, the following techniques are known.
■ 木材の難燃化処理
木材の難燃化処理法は種々あるが、難燃化のメカニズム
から分類すれば、次のものがある。■ Flame retardant treatment of wood There are various methods of flame retardant treatment of wood, but if classified based on the mechanism of flame retardation, there are the following.
ａ、無機物による木質の被覆
す、木質の炭化促進
Ｃ９発炎燃焼における連鎖反応の阻害
ｄ、不燃性ガスの発生
ｅ１分解・結晶水放出等による吸熱
ｆ１発泡層形成による断熱
本発明において関係するのは、ａ、ｂ、ｃであるので、
以下これらについて説明する。a. Coating of wood with inorganic substances, promotion of carbonization of wood, C9 inhibition of chain reaction in flaming combustion, d. Generation of non-flammable gas, e1. are a, b, c, so
These will be explained below.
前記ａの無機物による被覆は、たとえ可燃性の材料であ
っても、不燃性の無機物と適当な配合比で複合すれば、
難燃化しうるということである。Even if the inorganic material coating in a above is a combustible material, it can be composited with a nonflammable inorganic material at an appropriate mixing ratio.
This means that it can be made flame retardant.
たとえば、木片セメント板は、可燃性の木材と不燃性の
セメントを約１＝１の重量配合比で混合し板状に成形し
たものであるが、これはＪＩＳで準不燃材料として認め
られている。For example, wood cement boards are made by mixing combustible wood and non-combustible cement at a weight ratio of approximately 1:1 and forming them into a board shape, which is recognized as a semi-non-combustible material by JIS. .
前記すの炭化促進のメカニズムを利用する場合は、木材
が加熱されると熱分解して可燃性ガスを発生し、これが
発炎燃焼することに着目し、あらかじめ木材にリン酸、
ホウ酸等の薬剤を各浸させておき、これにより木材の熱
分解、すなわち炭化を促進する。こうして形成された炭
化層が断熱層として作用し、難燃効果を得るのである。When using the carbonization promotion mechanism described above, we focus on the fact that when wood is heated, it thermally decomposes and generates flammable gas, which ignites and burns.
Each is soaked with a chemical such as boric acid, which promotes thermal decomposition, or carbonization, of the wood. The carbonized layer thus formed acts as a heat insulating layer and provides a flame retardant effect.
前記Ｃについては、炎中でのラジカル的な酸化反応にお
いて、ハロゲンが連鎖移動剤として作用し難燃効果を生
じることを利用するものである。Regarding C, the fact that halogen acts as a chain transfer agent in a radical oxidation reaction in a flame and produces a flame retardant effect is utilized.
■ 木材の防腐・防虫処理
菌類が木材を腐敗させるには、まず菌糸が木材内腔中へ
侵入することが不可欠である。その際、木材内腔中に異
物が存在すると菌糸が侵入できず、結果的に腐敗されに
くくなる。木材内腔中の異物は、特に防腐効果のある薬
剤である必要は無く、菌類の養分になるものでなければ
、何−であっても良い。■ Preservative and insect repellent treatment of wood In order for fungi to rot wood, it is essential that mycelia first invade the inner cavity of the wood. At that time, if foreign matter is present in the internal cavity of the wood, mycelium cannot enter, and as a result, it becomes difficult to rot. The foreign matter in the wood lumen need not be a particularly antiseptic agent, and may be anything as long as it does not serve as nutrients for fungi.
■ 木材の寸法安定化処理
木材を水で膨潤させておき、木材細胞中に、何らかの物
質を固定できれば、バルク効果により、寸法安定化効果
が得られる。固定物質として、水に不溶性の無機物を使
うことができる。もちろん水に不溶な無機物を水に分散
させた処理液を使用して木材細胞壁中に無機物を固定す
るのは困難なので、水に可溶なイオンとして木材細胞壁
中に含浸させ、他のイオンと反応させて、水に不溶化す
ることが必要であろう。■ Dimensional stabilization treatment of wood If wood is swollen with water and some substance can be fixed in the wood cells, a dimensional stabilization effect can be obtained due to the bulk effect. As fixing substances, water-insoluble minerals can be used. Of course, it is difficult to fix inorganic substances in wood cell walls using a treatment solution in which water-insoluble inorganic substances are dispersed in water, so they are impregnated into wood cell walls as water-soluble ions and react with other ions. It may be necessary to make it insoluble in water.
そこで、本発明者らは、まず処理浴を二種準備し、第１
浴でアニオンと反応して不溶性無機物を生成するカチオ
ンを含浸させ、第２浴で、そのカチオンと反応して不溶
性無機物を生成するアニオンを含浸させ、これにより木
材内で水不溶物を生成させる改質木材の製法を提案した
。しかし、まだ不十分であったので、さらに改良された
方法を提供すべく研究した。Therefore, the present inventors first prepared two types of treatment baths, and
A bath is impregnated with cations that react with anions to produce insoluble minerals, and a second bath is impregnated with anions that react with the cations to produce insoluble minerals, thereby producing water-insoluble substances within the wood. He proposed a method for producing quality wood. However, it was still insufficient, so we conducted research to provide an even more improved method.
この発明は、従来の方法による改質木材よりも、さらに
すぐれた性能（防火性、硬度、寸法安定性等）の改質木
材が得られる改質木材の製法を提供することを目的とす
る。An object of the present invention is to provide a method for producing modified wood that can provide modified wood with better performance (fire retardancy, hardness, dimensional stability, etc.) than wood modified by conventional methods.
この発明は、木材の組織内に不燃性無機物を定着させた
改質木材の製法において、第１の水溶性無機物を木材に
含浸させ、ついで第２の水溶性無機物を木材に含浸させ
て木材組織内で前記第１および第２の水溶性無機物を反
応させて不溶物を生成、かつ定着させる改質木材の製法
であって、上記定着方法を、２回以上繰り返して施すこ
とを特徴とする改質木材の製法を提供するものである。This invention relates to a method for producing modified wood in which a nonflammable inorganic substance is fixed in the structure of the wood, in which the wood is impregnated with a first water-soluble inorganic substance, and then the wood is impregnated with a second water-soluble inorganic substance. A method for producing modified wood in which the first and second water-soluble inorganic substances are reacted to produce and fix an insoluble substance, the method comprising repeating the fixing method twice or more. It provides a method for producing quality wood.
以下、詳しく説明する。This will be explained in detail below.
この発明においては、前記のように第１の水溶性無機物
を第１浴において含浸させる。ここで、第１の水溶性無
機物としては、限定する趣旨ではないが、たとえば塩化
バリウム、塩化カルシウム、硫酸マグネシウムなどが使
用される。In this invention, the first water-soluble inorganic substance is impregnated in the first bath as described above. Here, as the first water-soluble inorganic substance, for example, barium chloride, calcium chloride, magnesium sulfate, etc. are used, although this is not intended to be limiting.
第１浴による水溶性無機物の含浸の後、第２浴で前記の
第１浴処理木材を処理し、第２の水溶性無機物を重ねて
含浸させる。第２の水溶性無機物としては、限定する趣
旨ではないが、前記第１の水溶性無機物と反応して不溶
性の無機塩を生成するものであり、それ自体水溶性のも
のであればどのようなものでもよい。たとえば、塩化バ
リウム、塩化カルシウムにたいしては酸性リン酸アンモ
ニウム、塩化バリウムにたいしては硼酸、硫酸マグネシ
ウムにたいしては酸性リン酸ナトリウムなどが使用可能
である。このような第１、第２の水溶性無機物を木材の
組織内で反応させ、不溶性の無機塩を生成、かつ定着さ
せるのである。After impregnating with the water-soluble inorganic material in the first bath, the wood treated with the first bath is treated with a second bath to superimpose impregnation with the second water-soluble inorganic material. Although not intended to be limiting, the second water-soluble inorganic substance is one that reacts with the first water-soluble inorganic substance to produce an insoluble inorganic salt, and any substance that is itself water-soluble can be used. It can be anything. For example, acidic ammonium phosphate can be used for barium chloride and calcium chloride, boric acid for barium chloride, and acidic sodium phosphate for magnesium sulfate. These first and second water-soluble inorganic substances are reacted within the structure of the wood to generate and fix an insoluble inorganic salt.
第１浴、第２浴共、溶液状態で各イオンを木材内へ拡散
させるため、そのイオンによっては性能（防火性、防腐
性等）には寄与するが、溶解度が低いため、木材内の空
隙量に比べ、ごくわずかの量しか不溶物が定着しない場
合もあり、かならずしも充分な改質効果を得ることがで
きない場合もあった。よってもう少し含浸量を増やすこ
とができれば、性能向上が達成できるものと考えられた
。そこでさらに検討した結果、前記の第１浴、第２浴の
処理を、２回以上繰り返して施すことにより目的を達成
したのである゛。これにより、木材組織内に定着する不
溶性無機物の量を増加させ、−層の性能向上を図ること
ができたのである。以下実施例にに基づき説明する。In both the first and second baths, each ion is diffused into the wood in a solution state, so some of the ions may contribute to performance (fire retardancy, antiseptic properties, etc.), but due to their low solubility, the ions may form inside the wood. In some cases, only a small amount of insoluble matter is fixed compared to the amount, and in some cases, it is not always possible to obtain a sufficient modifying effect. Therefore, it was thought that performance could be improved if the amount of impregnation could be increased a little more. As a result of further investigation, the objective was achieved by repeating the first and second baths two or more times. This made it possible to increase the amount of insoluble inorganic substances fixed within the wood structure and improve the performance of the -layer. The following will be explained based on examples.
く実 施 例〉
マツ・スギおよびブナ材の２１烏厚ロータリー単板を、
それぞれ２０〜３０ｍｍＨｇ下で水中に浸漬し、２４時
間放置して飽水状態にした。次に得られた飽水木材を、
５０ ’ＣのＢａＣ１ｚ ’２８２０溶液（２ｍｏ
１／Ｈｚ Ｏ１０００ｒｒ！！、ｐＨ５〜６）に２４時
間浸漬した後、５０℃で（ＮＨａ）ｚＨＰＯ，溶液（４
ｍｏ ｌ／Ｈｚ Ｏ１０Ｑ Ｏｍｊ！、ｐＨ５〜６）に
２４時間浸漬した。その後、可溶分く未反応（ＮＨ，）
Ｚ ＨＰＯ，、副生ＮＨ，ＣＩ）を除くため、水中に２
４時間（室温）浸漬した後、さきの第１浴、第２浴の可
溶分溶出処理を繰り返した。Example: 21-thick rotary veneers made of pine, cedar, and beech.
Each sample was immersed in water at 20 to 30 mmHg and left for 24 hours to become saturated with water. Next, the obtained water-saturated wood is
BaC1z'2820 solution (2mo
1/Hz O1000rr! ! , pH 5-6) for 24 hours, and (NHa)zHPO, solution (4
mol/Hz O10Q Omj! , pH 5-6) for 24 hours. After that, the soluble part is separated from the unreacted (NH,)
2 in water to remove Z HPO,, by-product NH, CI).
After 4 hours of immersion (at room temperature), the soluble matter elution process in the first and second baths was repeated.
各木材を乾燥したところ、木材絶乾重量１００に対して
約７０の重量増（１回処理；約４０）が得られた。ここ
で得られた改質木材は１回処理に比べ、さらに優れた難
燃性、防腐・防虫性、および寸法安定性を有していた。When each wood was dried, an increase in weight of about 70% (one time treatment; about 40%) was obtained based on 100% dry weight of the wood. The modified wood obtained here had better flame retardancy, rot and insect repellency, and dimensional stability compared to the one-time treated wood.
第１表にデータを示した。The data are shown in Table 1.
その他、処理を繰り返すことにより木材の表面硬度が増
し、特にスギ、ヒノキ等の柔らかい木材にこの処理を施
すと、表面に傷がつきにくくなり、床、テーブルトップ
等使用用途が広がることがわかった。また、合板や集成
材のように積層して使う場合は、その表層のみに本発明
の改質木材を使うことで間に合うので、従来の１回処理
に比して、それほどコスト高にならない利点がある。In addition, it has been found that repeating the treatment increases the surface hardness of the wood, and when this treatment is applied to soft woods such as cedar and cypress, the surface becomes less prone to scratches and can be used for a wider range of purposes, including floors and table tops. . In addition, when using laminated wood such as plywood or laminated wood, it is sufficient to use the modified wood of the present invention only on the surface layer, which has the advantage that the cost is not so high compared to the conventional one-time treatment. be.
この発明は、木材の組織内に不燃性無機物を定着させた
改質木材の製法において、第１の水溶性無機物を木材に
含浸させ、ついで第２の水溶性無機物を木材に含浸させ
て木材組織内で前記第１および第２の水溶性無機物を反
応させて不溶物を生成、かつ定着させる改質木材の製法
であって、上記定着方法を、２回以上繰り返して施すこ
とを特徴とするので、従来の改質木材に比して、さらに
性能が向上する効果がある。This invention relates to a method for producing modified wood in which a nonflammable inorganic substance is fixed in the structure of the wood, in which the wood is impregnated with a first water-soluble inorganic substance, and then the wood is impregnated with a second water-soluble inorganic substance. A method for producing modified wood in which the first and second water-soluble inorganic substances are reacted to produce and fix an insoluble substance, characterized in that the fixing method is repeated two or more times. This has the effect of further improving performance compared to conventional modified wood.
Claims (1)
材の製法において、第１の水溶性無機物を木材に含浸さ
せ、ついで第２の水溶性無機物を木材に含浸させて木材
組織内で前記第１および第２の水溶性無機物を反応させ
て不溶物を生成、かつ定着させる改質木材の製法であっ
て、上記定着方法を、２回以上繰り返して施すことを特
徴とする改質木材の製法。(1) In a method for producing modified wood in which a nonflammable inorganic substance is fixed in the structure of the wood, the wood is impregnated with a first water-soluble inorganic substance, and then the wood is impregnated with a second water-soluble inorganic substance. A method for producing modified wood in which the first and second water-soluble inorganic substances are reacted to produce and fix an insoluble substance, the modification characterized in that the fixing method is repeated two or more times. Wood manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28043486A JPS63132001A (en) | 1986-11-25 | 1986-11-25 | Manufacture of improved wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28043486A JPS63132001A (en) | 1986-11-25 | 1986-11-25 | Manufacture of improved wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63132001A true JPS63132001A (en) | 1988-06-04 |
Family
ID=17625000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28043486A Pending JPS63132001A (en) | 1986-11-25 | 1986-11-25 | Manufacture of improved wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63132001A (en) |
-
1986
- 1986-11-25 JP JP28043486A patent/JPS63132001A/en active Pending
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