JP2004066590A - Recyclable plate-shaped molding and its production method - Google Patents

Recyclable plate-shaped molding and its production method Download PDF

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Publication number
JP2004066590A
JP2004066590A JP2002227626A JP2002227626A JP2004066590A JP 2004066590 A JP2004066590 A JP 2004066590A JP 2002227626 A JP2002227626 A JP 2002227626A JP 2002227626 A JP2002227626 A JP 2002227626A JP 2004066590 A JP2004066590 A JP 2004066590A
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Japan
Prior art keywords
water
plate
pulp
soluble organic
weight
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Japanese (ja)
Inventor
Kazuaki Toshikura
利倉 一彰
Kouichi Sumita
墨田 公一
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NIKKO KASEI KK
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NIKKO KASEI KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding which is light in weight and easy of molding and can be incinerated or buried ecologically and recycled. <P>SOLUTION: The plate-shaped molding is produced by a process in which charcoal, pulp, clay, and a water-soluble organic resin are mixed, the mixture is vacuum-extruded into a preform, and the preform is rolled and dried. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、特に建築用の建材ボードとして有用な、木炭を含むリサイクル可能な板状成形品およびその製造方法に関する。
【0002】
【従来の技術】
現在、建築物や構造物の壁材や外壁に用いられている建材ボードには、意匠性を重視したものや、断熱性および調湿性を特徴とするものなど、多種多様なものが存在する。その中には石膏やセメントを心材とする建材ボードも包含される。
このような建材ボードは、基本的には1回の利用を目的としたものであり、再利用(リサイクル)を目的としたものではない。不要となると、建材ボードは、ある程度まで粉砕されてから廃棄処分されるが、建材ボードの粉砕には非常に大きなエネルギーが必要とされることがある。また、粉砕後も、建材ボードには土壌に悪影響を及ぼす可能性の有る物質が含まれていることがあるために、埋設による廃棄処分が困難である。
【0003】
【発明が解決しようとする課題】
従って、軽量で成形が容易であることに加え、環境保全の観点からリサイクル性に優れた建材ボードであって、しかも環境に悪影響を及ぼさずに埋設されて、自然に戻すことが可能な建材ボードが求められている。
【0004】
【課題を解決するための手段】
一般に知られている紙粘土は、基本的にパルプから構成されており、更に粘土や水溶性有機樹脂が混入されたものも市販されている。紙粘土は、吸湿性材料であって、水を加えることで容易に加工でき、その後乾燥させると固いが機械強度が小さい(特に、衝撃に弱い)成形品が得られる。この成形品は、水を加えると元の柔らかい状態に戻り、紙粘土として再度使用可能となる。
【0005】
本発明者らは、紙粘土の機械強度を改良すべく、研究を重ねた結果、成形手段として、瓦の製造に使用される真空押出成形法を利用し、得られる予備成形品をさらに圧延成形し、そして乾燥させることで、機械強度に優れかつリサイクル可能な材料が得られることを見出した。
更に材料組成においても、紙粘土中の水溶性有機樹脂として、土壌改良材に指定されている物質を採用し、そしてこれら紙粘土成分を「炭」、特に木炭と組み合わせることにより、廃棄処分時に容易に自然に戻せることに加えて、木炭成分の特徴とされる調湿性および脱臭機能を有する材料が得られることを見出し、本発明を完成するに至った。
【0006】
従って、本発明は、木炭と、紙粘土成分であるパルプ、粘土および水溶性有機樹脂を混合し、それらを真空押出しして予備成形品とし、該予備成形品を圧延成形した後、乾燥させることを含んで成るリサイクル可能な板状成形品の製造方法、およびそれにより得られるリサイクル可能な板状成形品を提供する。
【0007】
【発明の実施の形態】
リサイクル可能な板状成形品の製造方法
本発明の第1態様は、木炭、パルプ、粘土および水溶性有機樹脂を含有する成型用組成物を用いた、リサイクル可能な板状成形品の製造方法である。
本発明の方法で好適に使用される木炭は、木や竹等を原料とするものであってもよく、1mm程度に粉砕した後、使用する。
【0008】
パルプとしては、従来公知のもの、例えば、溶解パルプ、サルファイトパルプ、木材パルプ、ボロパルプ、クラフトパルプ、セミケミカルパルプ、ケミグラウンドパルプ、リファイナーグラウンドパルプ、砕木パルプ、その他として、わら、麻、コットンリンター、とうもろこし繊維、ヤシ繊維などがいずれも使用できる。これらは、バージンパルプであっても回収パルプであってもよい。
【0009】
粘土は、好適には、カオリン、ハロイサイト、ダイアスポア、セリサイト、パイロフィライト、モンモリナイトなどであるが、土中から掘り出される粘土でもよい。粘土には水分が入っていてもよいが、全体として後述の組成物の含水量で規定される範囲内に調節される必要がある。
【0010】
前記水溶性有機樹脂は、土壌改良材として指定されているもの、例えば、ポリビニルアルコール、カルボキシメチルセルロース(CMC)、澱粉、ポリエチレンイミド、ポリエチレングリコール(PEG)およびそれらの混合物から成る群より選択される少なくとも1種であってよい。より好ましくは、水溶性有機樹脂として、ポリビニルアルコールを単独で使用するか、あるいは必要に応じてポリビニルアルコールとそれ以外の前記水溶性有機樹脂から選択される少なくとも1種との組み合わせが使用される。
【0011】
前記木炭、パルプ、粘土および水溶性有機樹脂は、前記成型用組成物中に、木炭100重量部に対して、パルプ、粘土および水溶性有機樹脂をそれぞれ、2〜30重量部、40〜140重量部、2〜30重量部の量で、好ましくはそれぞれ5〜15重量部、70〜120重量部および5〜15重量部の量で使用される。
最も好ましくは、木炭、パルプ、粘土および水溶性有機樹脂を、木炭100重量部に対し、パルプ9重量部、粘土100重量部、水溶性有機樹脂13重量部で使用する。
【0012】
前記成型用組成物には、所望により、成形品の製造に通常使用される各種添加物が、成型用組成物の全重量に対し、0〜20重量%の量で含有されていてもよい。好適に使用される添加物の例としては、セピオライト、シリカ紛、ケイソウ土、軽量骨剤(パーライト、シラスバルーン)などが挙げられる。
【0013】
前記成型用組成物を、含水率40〜70%、好ましくは55〜60%に調節し、混練して真空押出成形することにより、押出方向に連続した丸棒状の予備成形品が得られる。
【0014】
真空押出成形は、好ましくは真空土練機(例えば、高浜工業(株)製MPM120N−SS)を用いて行われる。真空土練機内では、成型用組成物中に空気が混入されずに混練された後、押出成形される。
真空押出成形により得られる予備成形品の寸法は、所望の最終製品の寸法を基準に決定され得る。
【0015】
次に、得られた予備成形品を、ロールプレス機(例えば、丸二陶料(株)製CR−800)に適用し、予備成形品の両面を3mm厚みポリエステルフェルト(例えば、市川毛織(株)製K801)挟みロール間隔を20mm、15mm、11mmおよび9mmと狭めてロールプレスする条件下で圧延して板状に成形した後で所望の寸法に切断するか、あるいはロールプレス機の代わりに北川精機(株)製単板プレスなどの圧縮成形機に適用してプレス板間にスペーサー及びポリエステルフェルトをセットし、スペーサー厚みまで5kgf/cm程度の圧力で成形した後、十分に乾燥させることで所望の成形品が得られる。プレス後端部はカットし再度原料として使用する。
【0016】
最終製品を得るための成形品の乾燥は、好ましくは60〜150℃において24〜2(時間)行われる。
【0017】
本発明の方法により得られる最終製品としての成形品は、機械的強度に優れており、例えば、曲げ強度90kgf/cm、引張強度32kgf/cm程度である。
【0018】
板状成形品
本発明は、第2態様として、上記方法により製造される板状成形品を提供する。本発明の板状成形品は、軽量で、しかも優れた機械強度を有することから、建築用の建材ボードのみならず、家具、建具材、畳心材、ふすま心材等にも適用され得る。
【0019】
本発明の板状成形品の寸法は、製造装置や適用目的に依存して変化してよいが、例えば、厚さ3〜30mm、幅50〜1,300mmおよび長さ100〜3,000mmの範囲のものが得られる。
【0020】
本発明の板状成形品は、木炭を含有し、しかも成形品内部に多孔性を保持しているため、優れた調湿性および脱臭効果を発現し得る。
板状成形品の多孔度は、予備成形および成形時の条件に依存して変更され得る。
【0021】
更に、本発明の成形品は、木炭を含有することで、マイナスイオンを放出し得る。マイナスイオンは、自然の空気中に多く含まれており、心身のリラックスは勿論、病気や老化に関連する細胞の老化を防ぎ、新陳代謝の活性化を促す働き(いわゆる、マイナスイオン効果)があると考えられている。
【0022】
本発明の成形品は、温水(例えば、80〜100℃)に浸漬するか、あるいは蒸気を適用することにより、変形されて、最終的には崩壊することを特徴とする。
【0023】
崩壊されたものは、成形用組成物として本発明の製造方法に利用され得る。すなわち、本発明の成形品は、再使用(リサイクル)が可能である。
再使用時には、崩壊されたものをそのまま成型用組成物として利用しても、あるいは前記混合比となるように各組成を補充してもよい。
【0024】
本発明の成形品は、環境に有害な有機廃棄物などを含まないため、廃棄処分が容易である。すなわち、前記成形品は、土壌を汚染することなく土壌と化して自然に戻すことができる。
あるいは、本発明の成形品は、焼却処分も可能である。
【0025】
【実施例】
実施例1(本発明の板状成形品の製造)
【表1】

Figure 2004066590
上記組成の成型用組成物を合わせて真空土練機(高浜工業(株)製MPM120N−SS)に入れた。ここで、木炭、パルプ、粘土およびポリビニルアルコールの重量比は、100:9:100:16(重量部)であった。それに水を加え含水率39%にし、万能混合機((株)品川工業所製E5AM−RR)で30分間混練し真空土練機にて押出成形することにより、直径60mmの連続した丸棒状の予備成形品を得た。
【0026】
得られた予備成形品を、ロールプレス機(丸二陶料(株)製CR−800)において、両面に厚さ3mmのポリエステルフェルトで挟み込み、ロール間隔を20mm、15mm、11mm、9mmと順次間隔を狭め、ロールプレスで圧延して板状に成形した。板が曲がらないように10tの鉄板で100℃/5時間前乾燥し、板が硬くなったのを確認後、120℃で1時間金網の上で乾燥することにより、板状成形品を得た。乾燥後の成形品の寸法は、厚さ9mm×幅310mm×長さ310mmであった(重量:796g)。板状成形品は、切断面を目視観察することにより、多孔性であることを確認した。
【0027】
成形品の一部をなべに入れ、成形品の3倍の水を入れ10分間80℃以上で放置後、指で押圧すると、変形し、最終的には崩壊した。
【0028】
実施例2(リサイクル試験)
実施例1で製造した成形品を、沸騰水で崩壊し、ザルにて水を切り、この原料60に対して成型前の原料を40混合した。これを原料として使用したこと以外は、実施例1の手順に従って、多孔質の板状成形品を得た。成形品の乾燥後の寸法は、厚さ9.1mm×幅305mm×長さ306mmであった(重量:810g)。
成形品の一部をなべに入れ、成型品とその3倍の水を入れ80℃以上で10分間放置した後、指で押圧すると、変形し、最終的には崩壊した。
【0029】
(評価試験)
上記実施例1および2で得た板状成形品について、以下の試験を行った。
(1)土壌化評価
土壌中に60日間埋め放置し取り出したところ、手で簡単に折れた。
【0030】
(2)機械強度試験
(株)島津製作所製オートグラフ5000Gで曲げ強さおよび引張り強さを測定した。
【0031】
(3)調湿性試験(吸放湿量の測定)
タバイエスベック環境試験器で測定した。9mm×40mm×80mmの試料板を23℃/60%で重量が安定するまで放置後、23℃/95%に24時間放置し、吸湿させ、23℃/50%に24時間放置し放湿させた。95%と50%の時の重量差を吸放湿量とした。
【0032】
(4)脱臭性能試験
500ccのガラス広口ビンにホルムアルデヒド37%メタノール8%溶液(ホルマリン)を0.1ml入れた。試料を入れない時はホルマリン濃度50ppmであった(北川式ガス検知器)。底に金網をセットし、9mm×40mm×80mmの試料板を3枚入れた。7日後、ホルマリン濃度で測定した。
【0033】
(5)マイナスイオン効果(マイナスイオン放出量測定)
9mm×40mm×80mmの試料板を23℃/95%に24時間放置後、23℃/60%の室で神戸イオン(株)製イオンテスターKST−900にて測定した。1cc中のイオン数を結果として表示する。
上記(1)〜(5)の結果をそれぞれ表2にまとめる。
【0034】
【表2】
Figure 2004066590
【0035】
上記試験結果によれば、本発明の板状成形品およびこれを再使用して得られた成形品は共に、土に埋めると土壌と化し、焼却しても、人や環境に有害な物質を放出せず、また十分な機械強度を有することが分かる。また、上記結果からは、本発明の板状成形品およびこれを再使用して得られた成形品はいずれも、優れた調湿性や脱臭性能を有し、更にはマイナスイオンを有効に雰囲気中に放出し得ることも分かる。
【0036】
【発明の効果】
本発明の方法によれば、公知の混練法と圧延法を組み合わせて使用することで、容易に成形でき、軽量で、しかも機械強度に優れた板状成形品が提供される。
【0037】
本発明により得られる板状成形品は、優れた調湿性および脱臭効果、並びにマイナスイオン効果を特徴とする。
【0038】
本発明の板状成形品は、温水または蒸気を付与することにより、容易に崩壊する。崩壊後は、本発明の方法において再使用(リサイクル)が可能である。
更に本発明の板状成形品は、廃棄時に環境に悪影響を及ぼさずに焼却でき、あるいは埋設することにより土壌と化して自然に戻すことが可能である。
【0039】
本発明の板状成形品は、建材ボードとして優れた特性を発現し得ることから、壁材、天井材および床材、並びに床下の基礎部材等のあらゆる板状の建築材料として適用できるのみならず、家具等の板材にも適用可能である。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a recyclable plate-like molded product containing charcoal, which is particularly useful as a building material board for building, and a method for producing the same.
[0002]
[Prior art]
At present, there are a wide variety of building material boards used for wall materials and outer walls of buildings and structures, such as those emphasizing on design and those having characteristics of heat insulation and humidity control. This includes building material boards made of gypsum or cement as a core material.
Such a building material board is basically intended for one-time use, not for reuse. When no longer needed, the building material boards are crushed to some extent and then disposed of, but crushing of the building material boards may require very large energy. Further, even after the pulverization, the building material boards may contain substances that may have an adverse effect on the soil, so that disposal by embedding is difficult.
[0003]
[Problems to be solved by the invention]
Therefore, in addition to being lightweight and easy to mold, it is a building material board that is excellent in recyclability from the viewpoint of environmental protection and that can be buried without adversely affecting the environment and returned to nature. Is required.
[0004]
[Means for Solving the Problems]
Generally known paper clays are basically composed of pulp, and those containing clay and a water-soluble organic resin are commercially available. Paper clay is a hygroscopic material, which can be easily processed by adding water, and then dried to obtain a molded product which is hard but has low mechanical strength (particularly, low impact resistance). The molded article returns to its original soft state when water is added, and can be used again as paper clay.
[0005]
The present inventors have conducted various studies to improve the mechanical strength of paper clay, and as a result, have used a vacuum extrusion method used for the production of tiles as a forming means, and further roll-formed the obtained preformed product. And drying, a recyclable material having excellent mechanical strength was obtained.
In addition, in the material composition, as a water-soluble organic resin in paper clay, a substance specified as a soil conditioner is adopted, and these paper clay components are combined with "char", especially charcoal, to facilitate disposal. It has been found that a material having a moisture control property and a deodorizing function, which are characteristics of the charcoal component, can be obtained in addition to the natural characteristics of the charcoal component, and the present invention has been completed.
[0006]
Therefore, the present invention provides a method of mixing charcoal, pulp, clay and a water-soluble organic resin, which are paper clay components, extruding them into a preformed product, rolling the preformed product, and then drying the preformed product. The present invention provides a method for producing a recyclable plate-like molded product comprising: and a recyclable plate-like molded product obtained thereby.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Method for producing recyclable plate-like molded product A first aspect of the present invention relates to a recyclable plate-like molded product using a molding composition containing charcoal, pulp, clay and a water-soluble organic resin. Is a manufacturing method.
The charcoal suitably used in the method of the present invention may be one made of wood, bamboo or the like, and may be used after being ground to about 1 mm.
[0008]
As pulp, conventionally known ones, for example, dissolved pulp, sulfite pulp, wood pulp, boro pulp, kraft pulp, semi-chemical pulp, chemical ground pulp, refiner ground pulp, groundwood pulp, and others, straw, hemp, cotton linter Any of corn fiber, coconut fiber and the like can be used. These may be virgin pulp or recovered pulp.
[0009]
The clay is preferably kaolin, halloysite, diaspore, sericite, pyrophyllite, montmorillonite, etc., but may be clay excavated from the soil. Although the clay may contain moisture, it needs to be adjusted as a whole within the range defined by the moisture content of the composition described below.
[0010]
The water-soluble organic resin is designated as a soil conditioner, for example, at least one selected from the group consisting of polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, polyethylene imide, polyethylene glycol (PEG), and a mixture thereof. One type may be used. More preferably, polyvinyl alcohol is used alone as the water-soluble organic resin, or a combination of polyvinyl alcohol and at least one selected from the other water-soluble organic resins as necessary is used.
[0011]
The charcoal, pulp, clay and water-soluble organic resin are used in the molding composition, and the pulp, clay and water-soluble organic resin are 2 to 30 parts by weight and 40 to 140 parts by weight, respectively, based on 100 parts by weight of charcoal. Parts, 2 to 30 parts by weight, preferably 5 to 15 parts by weight, 70 to 120 parts by weight and 5 to 15 parts by weight, respectively.
Most preferably, charcoal, pulp, clay and water-soluble organic resin are used in 9 parts by weight of pulp, 100 parts by weight of clay and 13 parts by weight of water-soluble organic resin per 100 parts by weight of charcoal.
[0012]
If necessary, the molding composition may contain various additives usually used for the production of molded articles in an amount of 0 to 20% by weight based on the total weight of the molding composition. Examples of suitably used additives include sepiolite, silica powder, diatomaceous earth, lightweight aggregate (perlite, shirasu balloon) and the like.
[0013]
The molding composition is adjusted to a water content of 40 to 70%, preferably 55 to 60%, kneaded and vacuum-extruded to obtain a round bar-shaped preform in the extrusion direction.
[0014]
The vacuum extrusion is preferably performed using a vacuum kneader (for example, MPM120N-SS manufactured by Takahama Industry Co., Ltd.). In a vacuum kneader, the composition is kneaded without mixing air, and then extruded.
The dimensions of the preform obtained by vacuum extrusion can be determined based on the dimensions of the desired end product.
[0015]
Next, the obtained preformed product is applied to a roll press machine (for example, CR-800 manufactured by Maruni Ceramics Co., Ltd.), and both sides of the preformed product are 3 mm thick polyester felt (for example, Ichikawa Kaori Co., Ltd.) ) K801) Nipping roll interval is reduced to 20 mm, 15 mm, 11 mm, and 9 mm, rolled under roll-pressing conditions, formed into a plate shape, and then cut into desired dimensions, or Kitagawa instead of a roll press machine By applying a spacer and polyester felt between press plates by applying to a compression molding machine such as a single plate press manufactured by Seiki Co., Ltd., forming the spacer with a pressure of about 5 kgf / cm 2 to the thickness of the spacer, and then drying it sufficiently The desired molded product is obtained. The rear end of the press is cut and used again as a raw material.
[0016]
Drying of the molded article to obtain the final product is preferably performed at 60 to 150 ° C. for 24 to 2 hours.
[0017]
Molded article as a final product obtained by the process of the present invention is excellent in mechanical strength, e.g., flexural strength 90 kgf / cm 2, a tensile strength 32 kgf / cm 2 approximately.
[0018]
Plate-shaped product As a second aspect, the present invention provides a plate-shaped product manufactured by the above method. Since the plate-shaped molded product of the present invention is lightweight and has excellent mechanical strength, it can be applied not only to building material boards for construction, but also to furniture, fittings, tatami mats, bran cores and the like.
[0019]
The dimensions of the plate-like molded product of the present invention may vary depending on the manufacturing apparatus and the purpose of application, but, for example, ranges from 3 to 30 mm in thickness, 50 to 1,300 mm in width, and 100 to 3,000 mm in length. Is obtained.
[0020]
Since the plate-shaped molded article of the present invention contains charcoal and retains porosity inside the molded article, it can exhibit excellent humidity control and deodorizing effects.
The porosity of the plate-like molded product can be changed depending on the conditions at the time of preforming and molding.
[0021]
Further, the molded article of the present invention can release negative ions by containing charcoal. Negative ions are abundant in the natural air, and have a function that promotes the activation of metabolism (so-called negative ion effect), as well as relaxation of the body and mind, as well as preventing aging of cells related to illness and aging. It is considered.
[0022]
The molded article of the present invention is characterized in that it is deformed and finally collapsed by immersing it in warm water (for example, 80 to 100 ° C.) or by applying steam.
[0023]
The disintegrated one can be used in the production method of the present invention as a molding composition. That is, the molded article of the present invention can be reused (recycled).
At the time of reuse, the collapsed material may be used as it is as a molding composition, or each composition may be replenished so as to have the above-mentioned mixing ratio.
[0024]
Since the molded article of the present invention does not contain environmentally harmful organic wastes and the like, disposal is easy. That is, the molded article can be converted into soil without contaminating the soil and returned to nature.
Alternatively, the molded article of the present invention can be incinerated.
[0025]
【Example】
Example 1 (Production of a plate-shaped molded product of the present invention)
[Table 1]
Figure 2004066590
The molding composition having the above composition was put together in a vacuum kneader (MPM120N-SS manufactured by Takahama Industry Co., Ltd.). Here, the weight ratio of charcoal, pulp, clay and polyvinyl alcohol was 100: 9: 100: 16 (parts by weight). Water was added to the mixture to adjust the water content to 39%. The mixture was kneaded with a universal mixer (E5AM-RR, manufactured by Shinagawa Kogyo Co., Ltd.) for 30 minutes and extruded with a vacuum kneader to form a continuous round bar having a diameter of 60 mm. A preform was obtained.
[0026]
The obtained preformed product was sandwiched between both sides with a 3 mm-thick polyester felt using a roll press (CR-800, manufactured by Marunitai Co., Ltd.), and the roll intervals were sequentially set to 20 mm, 15 mm, 11 mm, and 9 mm. , And rolled by a roll press to form a plate. The plate was dried with a 10 t iron plate at 100 ° C. for 5 hours so as not to bend, and after confirming that the plate became hard, the plate was dried at 120 ° C. for 1 hour on a wire mesh to obtain a plate-like molded product. . The dimensions of the molded article after drying were 9 mm thick × 310 mm wide × 310 mm long (weight: 796 g). The plate-shaped molded product was confirmed to be porous by visually observing the cut surface.
[0027]
A part of the molded article was placed in a pot, and water three times as large as the molded article was added. After left at 80 ° C. or more for 10 minutes, when pressed with a finger, the molded article was deformed and finally collapsed.
[0028]
Example 2 (recycling test)
The molded product produced in Example 1 was disintegrated with boiling water, drained with a colander, and this raw material 60 was mixed with 40 raw materials before molding. Except that this was used as a raw material, a porous plate-like molded product was obtained according to the procedure of Example 1. The dimensions of the molded article after drying were 9.1 mm thick × 305 mm wide × 306 mm long (weight: 810 g).
A part of the molded product was put in a pot, and the molded product and water three times as much were put therein, left at 80 ° C. or more for 10 minutes, and then pressed with a finger to be deformed and finally collapsed.
[0029]
(Evaluation test)
The following tests were performed on the plate-shaped molded products obtained in Examples 1 and 2 above.
(1) Evaluation of soil formation When buried in soil for 60 days and taken out, it was easily broken by hand.
[0030]
(2) Mechanical strength test Flexural strength and tensile strength were measured with an Autograph 5000G manufactured by Shimadzu Corporation.
[0031]
(3) Humidity control test (measurement of moisture absorption and desorption)
It was measured with a Tabais Beck environmental tester. After a 9 mm × 40 mm × 80 mm sample plate was left at 23 ° C./60% until the weight became stable, it was left at 23 ° C./95% for 24 hours to absorb moisture, and left at 23 ° C./50% for 24 hours to release moisture. Was. The difference in weight between 95% and 50% was taken as the moisture absorption / release amount.
[0032]
(4) Deodorizing performance test 0.1 ml of a 37% formaldehyde 8% methanol solution (formalin) was put into a 500 cc glass wide mouth bottle. When no sample was added, the formalin concentration was 50 ppm (Kitakawa gas detector). A wire mesh was set on the bottom, and three 9 mm × 40 mm × 80 mm sample plates were placed. Seven days later, the measurement was made at the formalin concentration.
[0033]
(5) Negative ion effect (negative ion emission measurement)
After a sample plate of 9 mm × 40 mm × 80 mm was left at 23 ° C./95% for 24 hours, it was measured in a room at 23 ° C./60% with an ion tester KST-900 manufactured by Kobe Ion Co., Ltd. The number of ions in 1 cc is displayed as a result.
Table 2 summarizes the results of the above (1) to (5).
[0034]
[Table 2]
Figure 2004066590
[0035]
According to the above test results, both the plate-shaped molded product of the present invention and the molded product obtained by reusing the same are converted into soil when buried in soil, and even when incinerated, substances harmful to humans and the environment are removed. It does not release and has sufficient mechanical strength. From the above results, it can be seen that both the plate-shaped molded product of the present invention and the molded product obtained by reusing the same have excellent humidity control and deodorizing performance, and furthermore, the negative ions can be effectively exposed to the atmosphere. It can also be seen that it can be released to
[0036]
【The invention's effect】
According to the method of the present invention, by using a known kneading method and a rolling method in combination, a plate-like molded product that can be easily molded, is lightweight, and has excellent mechanical strength is provided.
[0037]
The plate-like molded product obtained by the present invention is characterized by excellent humidity control, deodorizing effect, and negative ion effect.
[0038]
The plate-shaped molded article of the present invention easily disintegrates when hot water or steam is applied. After the collapse, it can be reused (recycled) in the method of the present invention.
Furthermore, the plate-shaped molded article of the present invention can be incinerated without adversely affecting the environment at the time of disposal, or can be returned to nature by burying it into soil.
[0039]
Since the plate-shaped molded product of the present invention can exhibit excellent properties as a building material board, it can be applied not only to any plate-shaped building material such as wall materials, ceiling materials and floor materials, and foundation members under the floor, but also It can also be applied to board materials such as furniture.

Claims (6)

木炭、パルプ、粘土および水溶性有機樹脂を混合し、それらを真空押出しして予備成形品とし、該予備成形品を圧延成形した後、乾燥させることを含んで成るリサイクル可能な板状成形品の製造方法。Mixing a charcoal, a pulp, a clay and a water-soluble organic resin, vacuum extruding them into a preform, rolling the preform, and drying the preform. Production method. 水溶性有機樹脂が、ポリビニルアルコール、カルボキシメチルセルロース(CMC)、澱粉、ポリエチレンイミド、またはポリエチレングリコール(PEG)から成る群より選択される少なくとも1種である請求項1記載のリサイクル可能な板状成形品の製造方法。The recyclable plate-shaped article according to claim 1, wherein the water-soluble organic resin is at least one selected from the group consisting of polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, polyethylene imide, and polyethylene glycol (PEG). Manufacturing method. 木炭、パルプ、粘土および水溶性有機樹脂を含有するリサイクル可能な板状成形品。Recyclable plate-shaped articles containing charcoal, pulp, clay and water-soluble organic resins. 木炭、パルプ、粘土および水溶性有機樹脂が、木炭100重量部に対しパルプ2〜30重量部、粘土40〜140重量部および水溶性有機樹脂2〜30重量部の量で含有する請求項3記載のリサイクル可能な板状成形品。The charcoal, pulp, clay and water-soluble organic resin are contained in an amount of 2 to 30 parts by weight of pulp, 40 to 140 parts by weight of clay and 2 to 30 parts by weight of water-soluble organic resin per 100 parts by weight of charcoal. Recyclable plate-shaped products. 水溶性有機樹脂が、ポリビニルアルコール、カルボキシメチルセルロース(CMC)、澱粉、ポリエチレンイミド、またはポリエチレングリコール(PEG)から成る群より選択される少なくとも1種である請求項3記載のリサイクル可能な板状成形品。The recyclable plate-like molded product according to claim 3, wherein the water-soluble organic resin is at least one selected from the group consisting of polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, polyethylene imide, and polyethylene glycol (PEG). . 温水または蒸気の付与により変形または崩壊する請求項3記載のリサイクル可能な板状成形品。4. The recyclable plate-shaped article according to claim 3, which is deformed or collapsed by the application of hot water or steam.
JP2002227626A 2002-08-05 2002-08-05 Recyclable plate-shaped molding and its production method Pending JP2004066590A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100975894B1 (en) * 2010-02-01 2010-08-17 주식회사 엔투하이텍 Appratus for manufacturing synthetic wood using charcoal
KR101036450B1 (en) * 2010-05-31 2011-05-24 주식회사 엔투하이텍 Synthetic wood using charcoal and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100975894B1 (en) * 2010-02-01 2010-08-17 주식회사 엔투하이텍 Appratus for manufacturing synthetic wood using charcoal
KR101036450B1 (en) * 2010-05-31 2011-05-24 주식회사 엔투하이텍 Synthetic wood using charcoal and method for manufacturing the same

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