JPS6127342B2 - - Google Patents
Info
- Publication number
- JPS6127342B2 JPS6127342B2 JP9416781A JP9416781A JPS6127342B2 JP S6127342 B2 JPS6127342 B2 JP S6127342B2 JP 9416781 A JP9416781 A JP 9416781A JP 9416781 A JP9416781 A JP 9416781A JP S6127342 B2 JPS6127342 B2 JP S6127342B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- cement
- board
- chlorinated paraffin
- boards
- 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
Links
- 239000002023 wood Substances 0.000 claims description 42
- 239000004568 cement Substances 0.000 claims description 37
- 239000012188 paraffin wax Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 241000894007 species Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000218652 Larix Species 0.000 description 3
- 235000005590 Larix decidua Nutrition 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 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 2
- 239000002253 acid Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 231100000820 toxicity test Toxicity 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1044—Bituminous materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】
本発明は原料木質（木毛、木片、木粉等）を塩
化パラフインで前処理し、セメントの硬化不良を
防止し、更にボードに耐水性と難燃性を賦与する
ことを目的とした木質セメント板の製法に関する
ものである。[Detailed Description of the Invention] The present invention pre-treats raw wood (wood wool, wood chips, wood flour, etc.) with chlorinated paraffin to prevent cement from curing poorly, and further imparts water resistance and flame retardancy to the board. This paper relates to a method for manufacturing wood cement boards for the purpose of
本発明は木質セメント板の製法に関し、塩化パ
ラフイン（固体粉末、ワツクス状、液状）を単独
又は溶剤（潤滑油、有機溶媒）との混合物で噴
霧、混合処理することにより、木質の細孔内、及
び木質の表面に存在せしめ、しかる後に水、セメ
ントを混合し木質セメント板を製造することを特
徴とするものである。 The present invention relates to a method for manufacturing wood cement boards, and involves spraying and mixing chlorinated paraffin (solid powder, wax, liquid) alone or in a mixture with a solvent (lubricating oil, organic solvent) to create a structure within the pores of wood. The present invention is characterized in that it is made to exist on the surface of wood, and then mixed with water and cement to produce a wood cement board.
木毛、木片、木粉等にセメント、水を混合し、
ボードを製造することは公知であるか、これに使
用する木質原料の樹種によつては、セメントが硬
化不良を起こしボードに成形できない。 Mix wood wool, wood chips, wood powder, etc. with cement and water,
It is known to manufacture boards, and depending on the species of the wood raw material used for this, the cement may not harden properly and cannot be formed into boards.
これは木質中に含まれるセメント硬化阻害物質
が、木質と水、セメント混合時にセメントゲル中
に溶出し、セメントに作用する為とされている。
又、腐朽等の微生物による分解、太陽光による、
光分解を受けた木質も阻害物質が生成されるた
め、セメント硬化不良を起こすとされている。こ
のため、この種の工業は原料樹種の選択を余儀な
くされている。 This is said to be because the cement hardening inhibitor contained in wood is eluted into the cement gel when wood, water, and cement are mixed, and acts on the cement.
In addition, decomposition by microorganisms such as decay, sunlight,
Wood that undergoes photodegradation also produces inhibitory substances, which is said to cause poor cement hardening. For this reason, this type of industry is forced to select raw material tree species.
セメント硬化不良防止方法については古くから
多くの試みがなされている。例えば、抽出処理に
よる硬化阻害物質の除去法、熱処理による阻害物
質の不溶化法、薬品処理による変質化法、などが
あるが、これらの方法は作業性、経済性等の面で
問題があり、現在実用化には致つていない。 Many attempts have been made since ancient times to prevent poor cement hardening. For example, there are methods to remove curing inhibitors by extraction, insolubilization by heat treatment, and modification by chemical treatment, but these methods have problems in terms of workability, economy, etc., and are currently not available. It has not been put into practical use.
本発明の方法は原料木質を塩化パラフインで処
理し、木質を被覆し又その細孔を密閉することに
より、セメント硬化不良を防止しつつ、製品ボー
ドに難燃性を賦与することに特徴を有する。 The method of the present invention is characterized in that raw material wood is treated with chlorinated paraffin to coat the wood and seal its pores, thereby imparting flame retardancy to the product board while preventing poor cement hardening. .
耐水性、耐火性に優れた塩化パラフインを木質
表面に存在せしめることは、処理木質を水、セメ
ントと混合しても、セメント硬化阻害物質がセメ
ントゲル中に浸出することが防止又は減少される
ため、セメントの硬化は阻害されず、かつ又、ボ
ードの難燃性を高めることとなる。 The presence of chlorinated paraffin, which has excellent water resistance and fire resistance, on the wood surface prevents or reduces the leaching of cement hardening inhibitors into the cement gel even when the treated wood is mixed with water and cement. , the hardening of the cement will not be inhibited, and will also increase the flame retardancy of the board.
一般に、建築の内、外装の部材、壁材等はその
使用方法や使用箇所によつて異なるが建築基準法
の適用を受けている。外装用ボードは物性におけ
る規格の外に、難燃性においても準不燃以上のグ
レードが要求されている。準不燃材料は表面試
験、穿孔試験と共にガス有害性試験（マウスによ
る生物試験）に合格したものでなければならな
い。 Generally, internal and external building materials, wall materials, etc. are subject to the Building Standards Act, although this varies depending on how and where they are used. In addition to meeting standards for physical properties, exterior boards are also required to have flame retardant grades of semi-incombustible or higher. Semi-noncombustible materials must pass a surface test, a perforation test, and a gas toxicity test (biological test using mice).
このうち、表面試験ではTdθ（発熱指数）100
以下、C.A（発煙指数）60以下、残炎30秒以下等
の値であることが求められている。 Among these, in the surface test, Tdθ (heating index) 100
Below, values such as a CA (smoke index) of 60 or less and an afterflame of 30 seconds or less are required.
木質セメント板は結合材であるセメントが無機
物質であるので、市販ボードは準不燃材料以上の
性能が要求されることが多い。しかしながら、使
用する原料木質は有機物質であるため可燃性であ
る。このため、セメント配合比の小さな、比較的
低比重のボードを製造する為には、結合材である
セメントの配合比を高めたり、防火薬剤の処理等
の何らかの手段が必要である。 Since the bonding material of wood cement boards is cement, which is an inorganic substance, commercially available boards are often required to have better performance than quasi-noncombustible materials. However, since the raw material wood used is an organic material, it is flammable. Therefore, in order to manufacture a board with a relatively low specific gravity with a small cement blending ratio, it is necessary to take some measures such as increasing the blending ratio of cement as a binder or treating with fire retardant chemicals.
このことは、ボードの性能の低下や製品コスト
の上昇にもつながり、かつまたボードの使用範囲
を狭いものにしている。 This leads to a decrease in the performance of the board, an increase in product cost, and also limits the scope of use of the board.
以上のことから、難燃性と耐水性を併有した塩
化パラフイン処理がセメント硬化不良防止とボー
ドの難燃性賦与に有効ではないかと考え実験を行
つた結果、セメントの硬化不良は防止され、ボー
ドの難燃性にもすぐれた効果が認められた。 Based on the above, we thought that chlorinated paraffin treatment, which has both flame retardancy and water resistance, might be effective in preventing poor cement hardening and imparting flame retardancy to the board.As a result of experiments, we found that the poor hardening of cement was prevented. Excellent effects on the flame retardancy of the board were also observed.
塩化パラフインによる処理は噴霧、混合により
容易に行え、処理油が木質の細孔内、木質の表面
で撥水性を発揮するので比較的少量でも硬化不良
を防止できる。更に、塩化パラフインは予め可燃
物である木質に処理され、処理された油はその後
の工程である水、セメント混合時にも容易に離脱
せず、セメント硬化後は木質の細孔内や木質の表
面部分に留る。このため、可燃物である木質の燃
焼をより効果的に抑制する作用が働らくものであ
る。 Treatment with chlorinated paraffin can be easily carried out by spraying or mixing, and since the treated oil exhibits water repellency within the pores of wood and on the surface of wood, poor curing can be prevented even with a relatively small amount. Furthermore, the chlorinated paraffin is pre-processed into wood, which is a combustible material, and the treated oil does not easily separate during the subsequent process of mixing with water and cement, and after the cement hardens, it does not dissolve into the pores of the wood or on the surface of the wood. Stay in the part. Therefore, the effect of suppressing the combustion of wood, which is a combustible material, is more effective.
木質材料の難燃化には主として、りん化合物等
の鉱酸塩処理とハロゲン化合物の処理がある。前
者は加熱時に酸を生成し、炭水化物の脱水炭化に
より熱分解を抑制するものであり、後者は加熱時
に燃焼反応方向を変え、連鎖的熱分解反応を停止
させ、更に気化し、気相状態で可燃性ガスと反応
して不燃化するものである。この作用により、前
者は主として発熱量を減少させることを目的に、
後者は残炎の減少、燃焼の伝播を抑制する目的で
用いられている。 Flame retardant methods for wood materials include treatment with mineral salts such as phosphorus compounds and treatment with halogen compounds. The former generates acid when heated and suppresses thermal decomposition by dehydrating and carbonizing carbohydrates, while the latter changes the direction of the combustion reaction during heating, stops the chain thermal decomposition reaction, and further vaporizes, resulting in carbonation in the gas phase. It reacts with flammable gas to make it nonflammable. Due to this effect, the former mainly aims to reduce the amount of heat generated.
The latter is used for the purpose of reducing afterflame and suppressing the propagation of combustion.
一般に炭化水素の空気中での燃焼反応はＨＯ〓＋
CO→CO2＋Ｈ〓 Ｈ〓＋O2→ＨＯ〓＋Ｏ〓となり、主と
してＨＯ〓が燃焼の連鎖反応を引きおこす。この極
めて反応性の高いHOラジカルを減少させること
が、燃焼反応を抑制するために有効である。 Generally, the combustion reaction of hydrocarbons in air is HO〓+
CO→CO 2 +H〓 H〓+O 2 →HO〓+O〓, and HO〓 mainly causes a chain reaction of combustion. Reducing these highly reactive HO radicals is effective in suppressing combustion reactions.
塩化パラフインは不燃物であるが、これにより
処理された木質が加熱されると、一部が分解しＣ〓
ｌやHClとなる。これが木質側から生成される
HOラジカルと良く反応する。ＨＯ〓＋HCl→H2O
＋Ｃ〓ｌ Ｒ−Ｈ＋Ｃ〓ｌ→Ｒ〓＋HClとの反応が起こ
りOHラジカルの代わりに反応性の低いＣ〓ｌやＲ
−を生成させ、連鎖反応を停止させるものであ
る。 Chlorinated paraffin is nonflammable, but when wood treated with it is heated, some of it decomposes and becomes C
It becomes 1 and HCl. This is generated from the woody side
Reacts well with HO radicals. HO〓＋HCl→H 2 O
+C〓l R-H+C〓l→R〓+HCl reaction occurs, and instead of OH radical, less reactive C〓l and R
- is produced and the chain reaction is stopped.
本発明の方法は塩素化パラフインを処理した木
質を用いてセメントボードを製造し、ボードの燃
焼時の発熱量、残炎時間の減少をもたらすもので
ある。 The method of the present invention produces a cement board using wood treated with chlorinated paraffin, thereby reducing the amount of heat generated during combustion of the board and the afterflame time.
塩化パラフインは無臭、無毒で耐水性、耐火性
に優れているばかりでなく、化学的に不活性で室
温では酸、アルカリとも容易に反応することはな
い。このため、塩化パラフイン処理した木質を原
料木質とする木質セメントボードはセメントの硬
化不良を防止するだけでなく、耐水性、離燃性に
おいても優れた材質となる。 Chlorinated paraffin is odorless, nontoxic, and has excellent water and fire resistance, as well as being chemically inert and does not easily react with acids or alkalis at room temperature. Therefore, a wood cement board made from wood treated with chlorinated paraffin not only prevents cement from curing poorly, but also has excellent water resistance and flammability.
塩化パラフイン処理は作業上、あるいは木質形
状等の処理条件によつては、単独処理、粘度調整
のため潤滑油や溶媒を添加した処理、あるいは塩
化パラフインの安定剤として良く知られている鉛
白添加処理も有効である。 Chlorinated paraffin treatment may be carried out alone, depending on processing conditions such as the shape of the wood, lubricating oil or solvent added to adjust viscosity, or addition of lead white, which is well known as a stabilizer for chlorinated paraffin. Processing is also effective.
本発明の方法は常法の木質セメント板の製造工
程上に塩化パラフイン処理を付加するだけで、セ
メント硬化不良樹種を原料として、耐水性及び離
燃性に優れたボードの製造が可能である。 The method of the present invention makes it possible to manufacture boards with excellent water resistance and combustibility using wood species with poor cement hardening as raw materials by simply adding chlorinated paraffin treatment to the conventional wood cement board manufacturing process.
よつて、この種工業の原木樹種選択の幅は広が
り、製品性能も高まり、木質セメントボードの需
要の拡大にもつながる優れた工業的効果をもたら
すものである。 Therefore, this type of industry will have a wider selection of raw wood species, will improve product performance, and will bring about excellent industrial effects that will lead to increased demand for wood cement boards.
実施例 １ 配合比 カラマツ木片 100 部 塩化パラフイン 2.5 部 セメント 300 部 水 150 部 ボードの曲げ強度 87.3Kg/cm2 燃焼試験結果 発熱量（Tdθ） ０ 発煙量（C.A） ０ 残炎時間 25秒 実施例 ２ 配合比 カラマツ木片 100 部 塩化パラフイン ５ 部 セメント 300 部 水 150 部 ボードの曲げ強度 75.6Kg/cm2 燃焼試験結果 発熱量（Tdθ） 2.5 発煙量（C.A） ０ 残炎時間 27 秒 実施例 ３ 配合比 カラマツ木片 100 部 塩化パラフイン 10 部 セメント 300 部 水 150 部 ボードの曲げ強度68.5Kg/cm2 燃焼試験結果 発熱指数（Tdθ） ０ 発煙指数（C.A） ０ 残炎時間 24秒Example 1 Mixing ratio Larch wood chips 100 parts Chlorinated paraffin 2.5 parts Cement 300 parts Water 150 parts Bending strength of board 87.3 Kg/cm 2 Combustion test results Calorific value (Tdθ) 0 Smoke amount (CA) 0 Afterflame time 25 seconds Example 2 Mixing ratio Larch wood chips 100 parts Chlorinated paraffin 5 parts Cement 300 parts Water 150 parts Bending strength of board 75.6Kg/cm 2 Combustion test result Calorific value (Tdθ) 2.5 Smoke amount (CA) 0 Afterflame time 27 seconds Example 3 Composition Larch wood chips 100 parts Chlorinated paraffin 10 parts Cement 300 parts Water 150 parts Bending strength of board 68.5Kg/cm 2 Combustion test results Heat index (Tdθ) 0 Smoke index (CA) 0 Afterflame time 24 seconds
Claims (1)
塩化パラフインで前処理することにより、セメン
トの硬化不良を防止し、更にボードの耐水性、難
燃性を賦与することを特徴とする木質セメント板
の製造法。1. In the production of wood cement boards, raw material wood is pretreated with chlorinated paraffin to prevent poor hardening of cement and further impart water resistance and flame retardancy to the board. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9416781A JPS57209869A (en) | 1981-06-19 | 1981-06-19 | Manufacture of excelsior cement board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9416781A JPS57209869A (en) | 1981-06-19 | 1981-06-19 | Manufacture of excelsior cement board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57209869A JPS57209869A (en) | 1982-12-23 |
| JPS6127342B2 true JPS6127342B2 (en) | 1986-06-25 |
Family
ID=14102794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9416781A Granted JPS57209869A (en) | 1981-06-19 | 1981-06-19 | Manufacture of excelsior cement board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57209869A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA948481B (en) * | 1993-10-28 | 1995-06-20 | Cretetech Dev Limited | Building material and method of manufacture |
-
1981
- 1981-06-19 JP JP9416781A patent/JPS57209869A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57209869A (en) | 1982-12-23 |
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