JPH11207711A - Wood fiberboard - Google Patents
Wood fiberboardInfo
- Publication number
- JPH11207711A JPH11207711A JP3047298A JP3047298A JPH11207711A JP H11207711 A JPH11207711 A JP H11207711A JP 3047298 A JP3047298 A JP 3047298A JP 3047298 A JP3047298 A JP 3047298A JP H11207711 A JPH11207711 A JP H11207711A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- wood fiber
- parts
- fiber board
- wood
- 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
- 239000011094 fiberboard Substances 0.000 title claims description 6
- 239000002023 wood Substances 0.000 title claims description 6
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 40
- 239000002025 wood fiber Substances 0.000 claims abstract description 40
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 16
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 16
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 13
- 239000007864 aqueous solution Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 238000000465 moulding Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 230000002411 adverse Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000005011 phenolic resin Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 3
- 229930006000 Sucrose Natural products 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000005720 sucrose Substances 0.000 description 3
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- -1 polymethylene Polymers 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- HDTRYLNUVZCQOY-UHFFFAOYSA-N α-D-glucopyranosyl-α-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OC1C(O)C(O)C(O)C(CO)O1 HDTRYLNUVZCQOY-UHFFFAOYSA-N 0.000 description 1
- HOVAGTYPODGVJG-UVSYOFPXSA-N (3s,5r)-2-(hydroxymethyl)-6-methoxyoxane-3,4,5-triol Chemical compound COC1OC(CO)[C@@H](O)C(O)[C@H]1O HOVAGTYPODGVJG-UVSYOFPXSA-N 0.000 description 1
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- WYUFTYLVLQZQNH-JAJWTYFOSA-N Ethyl beta-D-glucopyranoside Chemical compound CCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O WYUFTYLVLQZQNH-JAJWTYFOSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 239000004677 Nylon Substances 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
- 235000013431 Pinus clausa Nutrition 0.000 description 1
- 235000000773 Pinus glabra Nutrition 0.000 description 1
- 241001502813 Pinus glabra Species 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- HDTRYLNUVZCQOY-WSWWMNSNSA-N Trehalose Natural products O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-WSWWMNSNSA-N 0.000 description 1
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 description 1
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 1
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 150000002016 disaccharides Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 150000008131 glucosides Chemical class 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000000845 maltitol Substances 0.000 description 1
- 235000010449 maltitol Nutrition 0.000 description 1
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 description 1
- 229940035436 maltitol Drugs 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 229960001855 mannitol Drugs 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- HOVAGTYPODGVJG-UHFFFAOYSA-N methyl beta-galactoside Natural products COC1OC(CO)C(O)C(O)C1O HOVAGTYPODGVJG-UHFFFAOYSA-N 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 235000010356 sorbitol Nutrition 0.000 description 1
- 229960002920 sorbitol Drugs 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
(57)【要約】
【目的】高強度且つ低臭気の木質繊維板の製造方法を提
供することを目的とする。
【構成】糖質類の水溶液とポリイソシアネート化合物を
反応させ木質繊維に供給混合し、マット化して高強度且
つ低臭気の木質繊維板を得る。(57) [Summary] [Object] It is an object of the present invention to provide a method for producing a wood fiber board having high strength and low odor. An aqueous solution of a saccharide and a polyisocyanate compound are allowed to react with each other, supplied to wood fibers, mixed and matted to obtain a wood fiber board having high strength and low odor.
Description
【０００１】[0001]
【産業上の利用分野】本発明により得られる木質繊維板
は、建築内外装材、家具、自動車内装材、電気製品のキ
ャビネット等に使用される。BACKGROUND OF THE INVENTION The wood fiberboard obtained by the present invention is used for interior and exterior materials of buildings, furniture, interior materials of automobiles, cabinets of electric appliances and the like.
【０００２】[0002]
【従来の技術】木質繊維板は一般に解繊された木質繊維
に結合剤として粉末状ノボラック型フェノール樹脂また
は液状レゾール型フェノール樹脂を良く混合し、均一に
フォーミング後、熱圧成形により製造される。2. Description of the Related Art A wood fiber board is generally produced by mixing a defibrated wood fiber with a powdery novolak-type phenol resin or a liquid resol-type phenol resin as a binder, forming the mixture uniformly, and then hot pressing.
【０００３】結合剤として使用されるノボラック型フェ
ノール樹脂は、硬化剤として８〜１５重量％のヘキサミ
ンを含有する為、成形時にアンモニア、ホルムアルデヒ
ド等の人体に悪影響を及ぼすガス成分が発生し作業環境
を汚染する他、成形物内部にも残存し、建築内外装材や
自動車内装材としての使用時にもアンモニア臭が発生し
室内環境に悪影響を及ぼすという問題点があった。[0003] The novolak type phenol resin used as a binder contains 8 to 15% by weight of hexamine as a curing agent, so that gas components such as ammonia and formaldehyde which adversely affect the human body are generated at the time of molding to reduce the working environment. In addition to being contaminated, it remains inside the molded product, and when used as a building interior / exterior material or an automobile interior material, there is a problem in that an ammonia odor is generated and adversely affects the indoor environment.
【０００４】一方結合剤としてレゾール型フェノール樹
脂を使用した場合にも成形時のホルムアルデヒドの発生
や、製品におけるホルムアルデヒドの放出が問題となっ
ている。[0004] On the other hand, even when a resol type phenol resin is used as a binder, formaldehyde is generated during molding and formaldehyde is released from products.
【０００５】[0005]
【発明が解決しようとする課題】建築内外装材や自動車
内装材の場合、機械的特性としての高剛性が求められて
いる他、近年環境問題が重視されるようになり、人体に
悪影響を及ぼすガス成分の削減が求められている。In the case of interior and exterior materials for buildings and interior materials for automobiles, high rigidity is required as a mechanical property, and in addition, environmental problems have recently been emphasized and adversely affect the human body. Reduction of gas components is required.
【０００６】[0006]
【課題を解決するための手段】本発明は前述の課題を解
決すべくなされたものであり、糖質類の水溶液とポリイ
ソシアネート化合物を繊維状物に供給混合し、マット化
して熱圧成形することにより、曲げ強さが高く、低臭気
の木質繊維板を提供するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an aqueous solution of a saccharide and a polyisocyanate compound are supplied to a fibrous material, mixed, formed into a mat, and hot-pressed. This provides a wood fiber board having high bending strength and low odor.
【０００７】[0007]
【発明の構成並びに作用】本発明に使用される糖質類と
しては、グルコース、フルクトース、キシロース、マン
ノース等の単糖類、マルトース、ラクトース、トレハロ
ース、シュークロース等の２糖類やデキストリンを含む
オリゴ糖類、ソルビトール、マルチトール、キシリトー
ル、マンニトール等の糖アルコール、メチルグルコシ
ド、エチルグルコシド等のグルコシドが好ましく、これ
らの１種もしくは２種以上を混合して使用してもよい。The saccharides used in the present invention include monosaccharides such as glucose, fructose, xylose and mannose; disaccharides such as maltose, lactose, trehalose and sucrose; and oligosaccharides including dextrin; Sugar alcohols such as sorbitol, maltitol, xylitol and mannitol, and glucosides such as methylglucoside and ethylglucoside are preferred, and one or more of these may be used in combination.
【０００８】糖質類は水溶液として用いられるが、この
際の水分含有量は２５〜４５重量％であることが好まし
い。糖質類の水分含有量が２５重量％未満では糖質類の
粘度が高くなり繊維に均一に混合されにくく、一方、水
分含有量が４５重量％を越えるとポリイソシアネート化
合物との混合時に分離が起こり、何れも十分な強度が得
られない。The saccharide is used as an aqueous solution, and the water content at this time is preferably 25 to 45% by weight. If the water content of the carbohydrate is less than 25% by weight, the viscosity of the carbohydrate increases and it is difficult to uniformly mix the fiber, while if the water content exceeds 45% by weight, separation occurs when mixing with the polyisocyanate compound. In both cases, sufficient strength cannot be obtained.
【０００９】木質繊維はあらかじめ水分含有量を５〜３
０重量％に調整する必要がある。水分含有量が少なくと
も、多くとも成形物の強度は不十分なものとなる。Wood fiber has a water content of 5 to 3 in advance.
It must be adjusted to 0% by weight. At least the moisture content of the molded product is insufficient at most.
【００１０】本発明に使用されるポリイソシアネート化
合物としては、例えばジフェニルメタンジイソシアネー
ト、ポリメチレンポリフェニルポリイソシアネート、ト
リレンジイソシアネート及びこれらを部分的に変性した
イソシアネートが好ましく、これらの１種もしくは２種
以上を混合して使用してもよい。As the polyisocyanate compound used in the present invention, for example, diphenylmethane diisocyanate, polymethylene polyphenyl polyisocyanate, tolylene diisocyanate and partially modified isocyanate thereof are preferable, and one or more of these are used. You may mix and use.
【００１１】本発明に使用される木質繊維とは、エゾマ
ツ、トドマツ、アスペン等の木材を従来公知の方法にて
解繊したものが使用できる。また必要に応じてナイロ
ン、ポリエステル、アクリル等の各種合成繊維を混合し
て使用してもよい。As the wood fiber used in the present invention, wood fibers such as spruce pine, fir pine, aspen and the like which are defibrated by a conventionally known method can be used. If necessary, various synthetic fibers such as nylon, polyester and acrylic may be mixed and used.
【００１２】本発明により得られる木質繊維板は、糖質
類とポリイソシアネート化合物との反応物が示す強い結
合力により曲げ強さが高くなる。また糖質類とポリイソ
シアネート化合物との反応においてはガス発生がない為
に得られる木質繊維板は低臭気となる。The wood fiber board obtained according to the present invention has a high bending strength due to the strong binding force of a reaction product of a saccharide and a polyisocyanate compound. Further, in the reaction between the saccharides and the polyisocyanate compound, there is no gas generation, so that the obtained wood fiber board has low odor.
【００１３】[0013]
【実施例】以下に本発明の実施例を詳細に説明するが、
本発明はこれらの実施例に限定されるものではない。The present invention will now be described in detail with reference to Examples.
The present invention is not limited to these examples.
【００１４】［実施例１］解繊した木質繊維１００重量
部に水を１０重量部噴霧し、ミキサーで均一に混合し
た。次に７０％グルコース水溶液５重量部とポリイソシ
アネート類としてコスモネートＭ−２００（ポリメチレ
ンポリフェニルポリイソシアネート，三井化学株式会社
製）を５重量部混合し繊維に噴霧、ミキサーにて均一混
合しマット化した。このマットを成形プレスにて２００
℃、成形圧力２５ｋｇｆ／ｃｍ2、成形時間４０秒の条
件で成形し木質繊維板を得た。得られた木質繊維板の密
度は０．７９ｇ／ｃｍ3、曲げ強さ４４０ｋｇｆ／ｃｍ2
であった。Example 1 100 parts by weight of defibrated wood fiber was sprayed with 10 parts by weight of water and uniformly mixed with a mixer. Next, 5 parts by weight of a 70% glucose aqueous solution and 5 parts by weight of Cosmonate M-200 (polymethylene polyphenyl polyisocyanate, manufactured by Mitsui Chemicals, Inc.) as a polyisocyanate were mixed, sprayed onto fibers, and uniformly mixed with a mixer to give a mat. It has become. This mat is pressed with a molding press for 200
° C., molding pressure 25 kgf / cm 2, to obtain a molded wood fiber board in terms of molding time 40 sec. The density of the obtained wood fiber board is 0.79 g / cm 3 and the bending strength is 440 kgf / cm 2.
Met.
【００１５】［実施例２］解繊した木質繊維１００重量
部に水を１０重量部噴霧し、ミキサーで均一に混合し
た。次に６０％シュークロース水溶液５重量部とポリイ
ソシアネート類としてコスモネートＭ−２００を５重量
部混合し繊維に噴霧、ミキサーにて均一混合しマット化
した。このマットを実施例１と同様の条件で成形し木質
繊維板を得た。得られた木質繊維板の密度は０．８１ｇ
／ｃｍ3 、曲げ強さ４６０ｋｇｆ／ｃｍ2であった。Example 2 100 parts by weight of defibrated wood fiber was sprayed with 10 parts by weight of water and uniformly mixed with a mixer. Next, 5 parts by weight of a 60% sucrose aqueous solution and 5 parts by weight of Cosmonate M-200 as a polyisocyanate were mixed, sprayed onto fibers, and uniformly mixed with a mixer to form a mat. This mat was molded under the same conditions as in Example 1 to obtain a wood fiber board. The density of the obtained wood fiber board is 0.81 g
/ Cm 3 and a bending strength of 460 kgf / cm 2 .
【００１６】［実施例３］解繊した木質繊維１００重量
部に水を１０重量部噴霧し、ミキサーで均一に混合し
た。次に糖質類としてＭＲ−５５（群栄化学工業株式会
社製）３重量部とポリイソシアネート類としてコスモネ
ートＭ−２００を７重量部混合し繊維に噴霧、ミキサー
にて均一混合しマット化した。このマットを実施例１と
同様の条件で成形し木質繊維板を得た。得られた木質繊
維板の密度は０．８０ｇ／ｃｍ3、曲げ強さ４８０ｋｇ
ｆ／ｃｍ2であった。Example 3 10 parts by weight of water was sprayed on 100 parts by weight of defibrated wood fiber, and the mixture was uniformly mixed with a mixer. Next, 3 parts by weight of MR-55 (manufactured by Gunei Chemical Industry Co., Ltd.) as a saccharide and 7 parts by weight of Cosmonate M-200 as a polyisocyanate were mixed, sprayed onto fibers, uniformly mixed with a mixer, and matted. . This mat was molded under the same conditions as in Example 1 to obtain a wood fiber board. The density of the obtained wood fiber board is 0.80 g / cm 3 and the bending strength is 480 kg.
f / cm 2 .
【００１７】［実施例４］解繊した木質繊維１００重量
部に水を２０重量部噴霧し、ミキサーで均一に混合し
た。次に糖質類としてＭＲ−５５（群栄化学工業株式会
社製）３重量部とポリイソシアネート類としてコスモネ
ートＭ−２００を７重量部混合し繊維に噴霧、ミキサー
にて均一混合しマット化した。このマットを実施例１と
同様の条件で成形し木質繊維板を得た。得られた木質繊
維板の密度は０．７８ｇ／ｃｍ3、曲げ強さ４９０ｋｇ
ｆ／ｃｍ2であった。Example 4 20 parts by weight of water was sprayed on 100 parts by weight of defibrated wood fiber and uniformly mixed with a mixer. Next, 3 parts by weight of MR-55 (manufactured by Gunei Chemical Industry Co., Ltd.) as a saccharide and 7 parts by weight of Cosmonate M-200 as a polyisocyanate were mixed, sprayed onto fibers, uniformly mixed with a mixer, and matted. . This mat was molded under the same conditions as in Example 1 to obtain a wood fiber board. The density of the obtained wood fiber board is 0.78 g / cm 3 and the bending strength is 490 kg.
f / cm 2 .
【００１８】［比較例１］解繊した木質繊維１００重量
部に直接７０％グルコース水溶液５重量部とポリイソシ
アネート類としてコスモネートＭ−２００を５重量部均
一混合後繊維に噴霧し、ミキサーにて均一混合しマット
化した。このマットを実施例１と同様の条件で成形し木
質繊維板を得た。得られた木質繊維板の密度は０．８１
ｇ／ｃｍ3、曲げ強さ３６０ｋｇｆ／ｃｍ2であった。Comparative Example 1 5 parts by weight of a 70% glucose aqueous solution and 5 parts by weight of Cosmonate M-200 as a polyisocyanate were uniformly mixed directly with 100 parts by weight of defibrated wood fiber, and then sprayed onto the fiber. The mixture was uniformly mixed to form a mat. This mat was molded under the same conditions as in Example 1 to obtain a wood fiber board. The density of the obtained wood fiber board is 0.81.
g / cm 3 and bending strength 360 kgf / cm 2 .
【００１９】［比較例２］解繊した木質繊維１００重量
部に水を１０重量部噴霧し、ミキサーで均一に混合し
た。次に５０％シュークロース水溶液７重量部とポリイ
ソシアネート類としてコスモネートＭ−２００を７重量
部均一混合後繊維に噴霧し、ミキサーにて均一混合しマ
ット化した。このマットを実施例１と同様の条件で成形
し木質繊維板を得た。得られた木質繊維板の密度は０．
７９ｇ／ｃｍ3、曲げ強さ３６０ｋｇｆ／ｃｍ2であっ
た。Comparative Example 2 10 parts by weight of water was sprayed on 100 parts by weight of defibrated wood fiber, and the mixture was uniformly mixed with a mixer. Next, 7 parts by weight of a 50% sucrose aqueous solution and 7 parts by weight of Cosmonate M-200 as a polyisocyanate were uniformly mixed and then sprayed on the fiber, and uniformly mixed with a mixer to form a mat. This mat was molded under the same conditions as in Example 1 to obtain a wood fiber board. The density of the obtained wood fiber board is 0.
The flexural strength was 79 g / cm 3 and the flexural strength was 360 kgf / cm 2 .
【００２０】［比較例３］解繊した木質繊維１００重量
部にヘキサミンを１０重量部含有する粉末状ノボラック
型フェノール樹脂ＰＧ−４７２５（群栄化学工業株式会
社製）を１６重量部混合付着させ、マット化した。次に
マットを成形プレスにて２００℃、成形圧力２５ｋｇ／
ｃｍ2、成形時間４０秒の条件で成形し木質繊維板を得
た。得られた木質繊維板の密度は０．８５ｇ／ｃｍ3、
曲げ強さ３９０ｋｇｆ／ｃｍ2であった。Comparative Example 3 16 parts by weight of a powdery novolak type phenolic resin PG-4725 containing 10 parts by weight of hexamine (manufactured by Gunei Chemical Industry Co., Ltd.) was mixed and adhered to 100 parts by weight of defibrated wood fiber. Matted. Next, the mat is pressed at 200 ° C. at a molding pressure of 25 kg /
It was molded under the conditions of cm 2 and a molding time of 40 seconds to obtain a wood fiber board. The density of the obtained wood fiber board is 0.85 g / cm 3 ,
The bending strength was 390 kgf / cm 2 .
【００２１】［比較例４］解繊した木質繊維１００重量
部に液状レゾール型フェノール樹脂ＰＬ−３６１０（群
栄化学工業株式会社製：不揮発分４０％）を２５重量部
噴霧し、ミキサーにて均一に混合しマット化した。次に
マットを成形プレスにて２００℃、成形圧力２５ｋｇ／
ｃｍ2、成形時間４０秒の条件で成形し木質繊維板を得
た。得られた木質繊維板の密度は０．８０ｇ／ｃｍ3、
曲げ強さ３９０ｋｇｆ／ｃｍ2であった。[Comparative Example 4] 25 parts by weight of a liquid resol type phenolic resin PL-3610 (manufactured by Gunei Chemical Co., Ltd .: nonvolatile content: 40%) was sprayed on 100 parts by weight of the defibrated wood fiber, and the mixture was uniformly mixed with a mixer. Into a mat. Next, the mat is pressed at 200 ° C. at a molding pressure of 25 kg /
It was molded under the conditions of cm 2 and a molding time of 40 seconds to obtain a wood fiber board. The density of the obtained wood fiber board is 0.80 g / cm 3 ,
The bending strength was 390 kgf / cm 2 .
【００２２】実施例及び比較例で得られた木質繊維板の
特性値をガス発生量も併せて表１に示す。表１に示すよ
うに本発明の方法で得られる木質繊維板は、曲げ強さが
高く且つ人体に悪影響を及ぼすガス成分の発生がなく低
臭気である。Table 1 shows the characteristic values of the wood fiber boards obtained in the examples and comparative examples, together with the gas generation amounts. As shown in Table 1, the wood fiber board obtained by the method of the present invention has a high flexural strength, has no generation of gas components that adversely affect the human body, and has a low odor.
【表１】木質繊維板特性値 ガス発生量測定方法：５０×５０ｍｍの試験片を１リッ
トル容のガス捕集袋に入れ、８０℃、１時間加熱した。
次に北川式検知管にてガス発生量を測定。[Table 1] Characteristics of wood fiberboard Gas generation amount measuring method: A test piece of 50 × 50 mm was placed in a 1-liter gas collecting bag and heated at 80 ° C. for 1 hour.
Next, the amount of gas generated was measured using a Kitagawa type detector tube.
【００２３】[0023]
【発明の効果】本発明で示す木質繊維板製造方法によれ
ば、糖質類とポリイソシアネート化合物との強い結合力
により曲げ強さが高く、且つ人体に悪影響を及ぼすガス
成分の発生のない、優れた建築内外装材、自動車内装材
としての木質繊維板を製造することが出来る。According to the method for producing a wood fiber board shown in the present invention, the bending strength is high due to the strong binding force between the carbohydrate and the polyisocyanate compound, and there is no generation of gas components which adversely affect the human body. Wood fiberboard can be manufactured as an excellent building interior / exterior material and automobile interior material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岸 万里子 群馬県高崎市宿大類町700番地 群栄化学 工業株式会社内 (72)発明者 遊佐 知之 群馬県高崎市宿大類町700番地 群栄化学 工業株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mariko Kishi 700 Shukudaidaicho, Takasaki City, Gunma Prefecture Inside Gunei Chemical Industry Co., Ltd. Inside
Claims (3)
物を反応させ木質繊維に供給混合後、マット化して硬化
させることを特徴とする木質繊維板。1. A wood fiber board characterized in that an aqueous solution of a saccharide and a polyisocyanate compound are reacted to be supplied to wood fibers and mixed, then matted and cured.
請求項１に記載の木質繊維板。2. The wood fiberboard according to claim 1, wherein the water content of the saccharide is 25 to 45% by weight.
項１に記載の木質繊維板。3. The wood fiberboard according to claim 1, wherein the water content of the fiber is 5 to 30% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3047298A JPH11207711A (en) | 1998-01-28 | 1998-01-28 | Wood fiberboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3047298A JPH11207711A (en) | 1998-01-28 | 1998-01-28 | Wood fiberboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11207711A true JPH11207711A (en) | 1999-08-03 |
Family
ID=12304819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3047298A Pending JPH11207711A (en) | 1998-01-28 | 1998-01-28 | Wood fiberboard |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11207711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012098749A1 (en) * | 2011-01-20 | 2012-07-26 | 国立大学法人京都大学 | Production method for particle board and fiber board |
-
1998
- 1998-01-28 JP JP3047298A patent/JPH11207711A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012098749A1 (en) * | 2011-01-20 | 2012-07-26 | 国立大学法人京都大学 | Production method for particle board and fiber board |
| JPWO2012098749A1 (en) * | 2011-01-20 | 2014-06-09 | 国立大学法人京都大学 | Chipboard and fiberboard manufacturing method |
| US8907012B2 (en) | 2011-01-20 | 2014-12-09 | Kyoto University | Production method for particle board and fiber board |
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