JP5208899B2 - Construction material construction method - Google Patents

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JP5208899B2
JP5208899B2 JP2009240046A JP2009240046A JP5208899B2 JP 5208899 B2 JP5208899 B2 JP 5208899B2 JP 2009240046 A JP2009240046 A JP 2009240046A JP 2009240046 A JP2009240046 A JP 2009240046A JP 5208899 B2 JP5208899 B2 JP 5208899B2
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amylopectin
polyolefin resin
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秀和 兼岩
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Fukuvi Chemical Industry Co Ltd
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本発明は、壁紙や石膏ボードなどの建築用部材との接着性が改良された建築材料、並びに該建築材料の製造に好適に使用される樹脂組成物に係る。   The present invention relates to a building material having improved adhesion to a building member such as wallpaper or gypsum board, and a resin composition suitably used for producing the building material.

従来、巾木、廻り縁、見切り、点検口、腰壁と称される内装建材、或いは壁紙仕上げ用下地材などの建築材料は、その使用目的から表面に下地調整剤(パテ)や壁紙を貼着していた。しかしながら、この建築材料は通常有機高分子体の樹脂から構成されているので、無機物と水溶性接着剤とからなるパテやその接着面が紙などの天然繊維からなる壁紙との接着性は、接着剤を介在させて接着しても十分ではなかった。   Conventionally, building materials such as baseboards, surrounding edges, parting out, inspection ports, interior walls called waist walls, or base materials for wallpaper finishing, have been put a surface preparation agent (putty) or wallpaper on the surface for the purpose of use. I was wearing it. However, since this building material is usually composed of an organic polymer resin, its adhesiveness to the putty made of inorganic material and water-soluble adhesive and to the wallpaper made of natural fibers such as paper is the adhesion. Adhesion with an agent was not sufficient.

上記問題を解決するために、建築材料の表面に予め紙を積層した材料が提案されたが、積層した紙自体が破れやすい、剥がれやすいという欠点があった(特許文献1)。この欠点を解決すべく、新たに、建築材料の表面に予め変性ウレタン樹脂などの表面処理剤層を設けることが提案され、一応の目的が達成された(特許文献2、同3)。   In order to solve the above problem, a material in which paper is laminated in advance on the surface of a building material has been proposed. However, there is a drawback that the laminated paper itself is easily torn and peeled off (Patent Document 1). In order to solve this drawback, it has been proposed to provide a surface treatment agent layer such as a modified urethane resin in advance on the surface of the building material, and a temporary purpose has been achieved (Patent Documents 2 and 3).

一方、有効資源の活用の観点から、種々のバイオマス材料を熱可塑性樹脂に配合することが提案され、更には供給過剰状態の余剰米の活用の観点から米を配合した樹脂成型体も提案されている(特許文献4、同5)。   On the other hand, from the viewpoint of utilization of effective resources, it has been proposed to mix various biomass materials into thermoplastic resins, and from the viewpoint of utilization of surplus rice in an excessive supply state, resin molded bodies blended with rice have also been proposed. (Patent Documents 4 and 5).

実開平01−75533号公報Japanese Utility Model Publication No. 01-75533 特開平08−218611号公報Japanese Patent Laid-Open No. 08-218611 実開平10−140780号公報Japanese Utility Model Publication No. 10-140780 特開2005−255743号公報JP-A-2005-255743 特許第3878623号公報Japanese Patent No. 3878623

発明が解決ようとする課題Problems to be solved by the invention

前記接着性を改良するための提案技術は、何れも建築材料の表面に予めパテや接着剤に親和性がある材料を積層する技術思想であるため、必然的にそのための材料や積層工程が必要となる。その結果、省資源、省エネルギー、生産性、生産コストの観点からは必ずしも好適な技術とは言えなかった。
また、熱可塑性樹脂に米を配合した技術においては、成型体の成型性や強度に開発目標が設定され、接着剤との親和性や被着体との接着強度については何ら着目されなかった。その結果、これらの従来技術においては、デンプン中のアミロペクチンと接着性との相関について何ら記載も示唆もないばかりか、実施例レベルで実際に配合された米(アミロペクチン)の量は、相対的に低いものでしかなかった。
All of the proposed technologies for improving the adhesiveness are technical ideas for previously laminating materials that have an affinity for putty and adhesives on the surface of building materials. It becomes. As a result, it was not necessarily a suitable technique from the viewpoint of resource saving, energy saving, productivity, and production cost.
Moreover, in the technique which mix | blended rice with the thermoplastic resin, the development target was set to the moldability and intensity | strength of a molded object, and attention was not paid at all about the affinity with an adhesive agent, or the adhesive strength with a to-be-adhered body. As a result, in these prior arts, there is no description or suggestion about the correlation between amylopectin in starch and adhesion, and the amount of rice (amylopectin) actually blended at the example level is relatively high. It was only low.

本発明者らは、建築材料の表面に積層物を設けるのではなく、建築材料そのものを改良して接着剤との親和性を向上させ、最終目的の壁紙、石膏ボード等との接着強度を向上させることを考え検討した。そして、デンプン中のアミロペクチンに着目し、建築材料を構成する樹脂成分に当該アミロペクチンを特定量配合し、しかも特定の接着剤と組み合わせた場合に、壁紙などとの接着性が向上することを見出し、本発明を完成するに至った。   The present inventors do not provide a laminate on the surface of the building material, but improve the compatibility with the adhesive by improving the building material itself, and improve the adhesive strength with the final purpose wallpaper, gypsum board, etc. We considered and considered. And paying attention to the amylopectin in starch, when the specific amount of the amylopectin is blended with the resin component constituting the building material, and when combined with a specific adhesive, it is found that the adhesiveness with wallpaper etc. is improved, The present invention has been completed.

本発明によれば、(A)ポリオレフィン樹脂、および(B)アミロペクチンを含有してなるポリオレフィン樹脂組成物であって、(A)ポリオレフィン樹脂100重量部に対して、100重量部乃至900重量部の(B)アミロペクチンを含有する前記樹脂組成物の押出し成形体からなる壁紙仕上げ用下地材または内装建材と、天然繊維からなる被着面を有する内装仕上げ材または内装下地ボードとを水性接着剤を用いて接合することを特徴とする建築材料の施工方法が提供され、更に、(A)ポリオレフィン樹脂、および(B)アミロペクチンを含有してなるポリオレフィン樹脂組成物であって、(A)ポリオレフィン樹脂100重量部に対して、100重量部乃至900重量部の(B)アミロペクチンを含有する前記樹脂組成物の押出し成形体からなる壁紙仕上げ用下地材または内装建材と、パテとを接合することを特徴とする建築材料の施工方法が提供される。 According to the present invention, there is provided a polyolefin resin composition comprising (A) a polyolefin resin and (B) amylopectin, wherein (A) 100 parts by weight to 900 parts by weight with respect to 100 parts by weight of the polyolefin resin. (B) Using a water-based adhesive, a wallpaper finishing base material or interior building material made of an extruded product of the resin composition containing amylopectin and an interior finishing material or interior base board having an adherent surface made of natural fibers And (B) a polyolefin resin composition comprising amylopectin, (A) 100 wt.% Of polyolefin resin. Part of the resin composition containing 100 parts by weight to 900 parts by weight of (B) amylopectin There is provided a construction material construction method characterized by joining a base material for finishing a wallpaper or an interior building material made of a molded body and a putty.

本発明によって提供される建築材料はその接着表面を前処理することなく、通常の接着剤を用いて壁紙や石膏ボードとの、或いは直接パテとの高い接着強度を発現することができる。その結果、前処理工程を必要としないので省エネルギーおよび省力化され、また前処理に必要な材料を使用しないので省資源および生産コストの軽減を図ることができ、更に機能的な建築材料を生産性良く、かつ、安価に提供できる。   The building material provided by the present invention can develop a high adhesive strength with a wall paper, a gypsum board, or directly with a putty by using an ordinary adhesive without pre-treating its adhesive surface. As a result, energy savings and labor savings are achieved because no pre-treatment process is required, and resources that are necessary for pre-treatment are not used, so that resource savings and production costs can be reduced, and more functional building materials can be produced. Good and inexpensive.

本発明のポリオレフィン樹脂組成物は、(A)ポリオレフィン樹脂、および(B)アミロペクチンから基本構成され、(A)ポリオレフィン樹脂100重量部に対して、100重量部乃至900重量部の(B)アミロペクチンを含有する。以下各成分について説明する。   The polyolefin resin composition of the present invention is basically composed of (A) a polyolefin resin and (B) amylopectin, and (A) 100 parts by weight to (900 parts by weight) of (B) amylopectin with respect to 100 parts by weight of the polyolefin resin. contains. Each component will be described below.

<(A)ポリオレフィン樹脂>
本発明の組成物に熱可塑性を付与する樹脂成分であり、ポリエチレンやポリプロピレンなどのポリオレフィン樹脂である。このポリエチレンやポリプロピレンは、エチレンやプロピレンの単独重合体のみならず、その物性を改良するためのブテンー1などの他の重合性単量体との共重合体も含まれ、一般に市販されているものをそのまま使用できる。
<(A) polyolefin resin>
It is a resin component that imparts thermoplasticity to the composition of the present invention, and is a polyolefin resin such as polyethylene or polypropylene. These polyethylene and polypropylene include not only homopolymers of ethylene and propylene but also copolymers with other polymerizable monomers such as butene-1 for improving the physical properties, and are generally commercially available Can be used as is.

<(B)アミロペクチン>
アミロペクチンは、アミロースと共にデンプンを構成する基本成分である。本発明においては、このアミロペクチンの存在が接着性の向上に寄与する。
デンプンは、通常アミロペクチンとアミロースを含み、そのデンプンの由来作物により両者の構成比は異なる。代表的な値を以下に示す。
<(B) Amylopectin>
Amylopectin is a basic component constituting starch together with amylose. In the present invention, the presence of this amylopectin contributes to the improvement of adhesion.
Starch usually contains amylopectin and amylose, and the composition ratio of the two differs depending on the starch-derived crop. Typical values are shown below.

Figure 0005208899
Figure 0005208899

これらアミロペクチンとアミロースはそれぞれ単離可能であるが、本発明においては、敢えて単離されたアミロペクチンを使用する必要はなく、その含有量を予め分析して把握したデンプンを使用することが、生産性、生産コストの観点から好ましい。デンプンを使用して樹脂組成物とした場合、不可避的にアミロースが含まれる場合があるが、上記表から明らかなように通常アミロペクチン量を上回ることはないし、もち米由来のデンプンを使用すれば、アミロースを含まない樹脂組成物となる。このアミロペクチンは水に不溶であるため、後述する水性接着剤を用いて被着体を貼着した場合にも接着剤中の水にも溶解せず、高い接着性を発現する。従って、このアミロペクチンの存在並びに配合量が重要である。尚、デンプン中のこれらアミロペクチンとアミロースの含有割合は、分光法や市販分析キットを使用して容易に分析が可能である。   These amylopectin and amylose can be isolated from each other. However, in the present invention, it is not necessary to use the amylopectin that is intentionally isolated. From the viewpoint of production cost. When starch is used as a resin composition, amylose may inevitably be included, but as is apparent from the above table, it usually does not exceed the amount of amylopectin, and if starch from glutinous rice is used, The resin composition does not contain amylose. Since this amylopectin is insoluble in water, it does not dissolve in water in the adhesive even when an adherend is attached using an aqueous adhesive described later, and exhibits high adhesiveness. Therefore, the presence and blending amount of this amylopectin is important. The content ratio of these amylopectin and amylose in starch can be easily analyzed using a spectroscopic method or a commercially available analysis kit.

アミロペクチンは、ポリオレフィン樹脂100重量部に対し、100〜900重量部とすることが必要である。100重量部未満の場合は、本発明の目的である高い接着強度が発現しない。900重量部を越えると、樹脂組成物の成型性が悪く成型体の強度も低下する。   The amylopectin needs to be 100 to 900 parts by weight with respect to 100 parts by weight of the polyolefin resin. When the amount is less than 100 parts by weight, the high adhesive strength that is the object of the present invention is not exhibited. If it exceeds 900 parts by weight, the moldability of the resin composition is poor and the strength of the molded body is also reduced.

上記の通り、本発明の樹脂組成物は、(A)ポリオレフィン樹脂、および(B)アミロペクチンを基本成分とするものであるが、更に、(C)フッ素系樹脂またはアクリル変性樹脂、(D)α-オレフィン共重合樹脂を配合することは好ましい態様である。   As described above, the resin composition of the present invention comprises (A) a polyolefin resin and (B) amylopectin as basic components, and further includes (C) a fluorine-based resin or an acrylic-modified resin, (D) α It is a preferable embodiment to blend an olefin copolymer resin.

<(C)フッ素系樹脂またはアクリル変性樹脂>
フッ素系樹脂またはアクリル変性樹脂は、本発明の樹脂組成物の溶融粘度、溶融張力を向上させ成形加工性を改善する成分であり、好ましくは、(A)ポリオレフィン樹脂と(B)アミロペクチンの合計量100重量部に対して0.5乃至10重量部含有される。0.5重量部未満ではその効果が生ぜず、10重量部を超えると成形物の外観が低下して好ましくない。該フッ素樹脂としては、ポリテトラフルオロエチレン、テトラフルオロエチレン(C2F4)とエチレン(C2H4)との共重合体、テトラフルオロエチレン(C2F4)とパーフルオロアルコキシエチレンとの共重合体が挙げられ、大日精化工業(株)社「ノンメッシーマスター」、東京インキ(株)社「プラヘルパー」、東レダウコーニングシリコーン(株)社「シリコーンコンセントレート」などとして市販されている。アクリル変性樹脂としては、アクリルエステル、メタアクリルエステル等のアクリルエステル系モノマーをブロック重合またはグラフト重合させた、シリコーン、ポリ塩化ビニル、ポリウレタン、ポリプロピレン、ポリエチレン等が挙げられる。
<(C) Fluorine-based resin or acrylic-modified resin>
The fluorine-based resin or the acrylic-modified resin is a component that improves the melt viscosity and melt tension of the resin composition of the present invention to improve the molding processability, and is preferably a total amount of (A) polyolefin resin and (B) amylopectin 0.5 to 10 parts by weight is contained per 100 parts by weight. If the amount is less than 0.5 parts by weight, the effect does not occur. Examples of the fluororesin include polytetrafluoroethylene, a copolymer of tetrafluoroethylene (C 2 F 4 ) and ethylene (C 2 H 4 ), tetrafluoroethylene (C 2 F 4 ) and perfluoroalkoxyethylene. Copolymers are listed, and are marketed as “Non-messy master” of Dainichi Seika Kogyo Co., Ltd., “Pla Helper” of Tokyo Ink Co., Ltd., “Silicone Concentrate” of Toray Dow Corning Silicone Co., Ltd. Yes. Examples of the acrylic-modified resin include silicone, polyvinyl chloride, polyurethane, polypropylene, polyethylene, and the like obtained by block polymerization or graft polymerization of acrylic ester monomers such as acrylic ester and methacrylic ester.

<(D)α-オレフィン共重合樹脂>
α-オレフィン共重合樹脂は、本発明の樹脂組成物の相溶性、分散性を改善する成分であり、好ましくは、(A)ポリオレフィン樹脂と(B)アミロペクチンの合計量100重量部に対して0.5乃至15重量部含有される。0.5重量部未満ではその効果が生ぜず、15重量部を超えてもその効果は変化しない。該α-オレフィン共重合樹脂は、α−オレフィンと無水マレイン酸などの共重合樹脂、または変性樹脂であり、タフマー(三井化学社)、アドマー(三井化学社)、ブラストマー(ダウケミカル社)などとして市販されている。
<(D) α-olefin copolymer resin>
The α-olefin copolymer resin is a component that improves the compatibility and dispersibility of the resin composition of the present invention, and is preferably 0 with respect to 100 parts by weight of the total amount of (A) polyolefin resin and (B) amylopectin. Contained in an amount of 5 to 15 parts by weight. If the amount is less than 0.5 parts by weight, the effect does not occur, and if the amount exceeds 15 parts by weight, the effect does not change. The α-olefin copolymer resin is a copolymer resin such as α-olefin and maleic anhydride, or a modified resin, such as Tuffmer (Mitsui Chemicals), Admer (Mitsui Chemicals), Blastomer (Dow Chemical). Is commercially available.

本発明のポリオレフィン樹脂組成物は、上記(A)〜(D)成分に加えて、本発明の特徴を損なわない範囲で、無機または有機の充填剤、難燃剤、安定剤、紫外線吸収剤、可塑剤、滑剤などの各種添加剤、更には、染料や顔料などの着色剤を任意に配合することができる。   In addition to the above components (A) to (D), the polyolefin resin composition of the present invention is an inorganic or organic filler, flame retardant, stabilizer, ultraviolet absorber, plasticizer within the range not impairing the characteristics of the present invention. Various additives such as agents and lubricants, and further colorants such as dyes and pigments can be optionally blended.

上記必須並びに任意の成分を混合して樹脂組成物とする方法は、特に限定されず公知の方法で実施することができる。通常は、ヘンシェルミキサー等の混合機を用いて混合する。樹脂組成物の存在形態は特に限定されず、各成分を混合した混合物,更には該組成物を溶融混練してペレット状にしたものなどが挙げられる。   The method of mixing the above essential and optional components to form a resin composition is not particularly limited and can be carried out by a known method. Usually, it mixes using mixers, such as a Henschel mixer. The presence form of the resin composition is not particularly limited, and examples thereof include a mixture in which each component is mixed, and a composition obtained by melting and kneading the composition into a pellet.

上記本発明の樹脂組成物は、射出成型、ブロー成型或いは押出成形法により、目的に応じた所定の成型体とされる。特に、成型体を建築材料とする場合は押出成形法が好適に採用され、その成型機や成型条件などは従来公知の中から任意に選択して決定すれば良い。   The resin composition of the present invention is formed into a predetermined molded body according to the purpose by injection molding, blow molding or extrusion molding. In particular, when a molded body is used as a building material, an extrusion molding method is suitably employed, and the molding machine, molding conditions, and the like may be arbitrarily selected and determined from conventionally known ones.

本発明の成型体からなる建築材料は、高い接着強度を発現するという特質を有するため、壁紙を貼着する壁紙仕上げ用下地材、或いは石膏ボードに代表される内装下地ボード上に接着して使用する内装建材として極めて有用である。内装建材としては、巾木、廻り縁、見切り、点検口、腰壁などの内装建材が挙げられる。   Since the building material comprising the molded body of the present invention has the property of exhibiting high adhesive strength, it is used by adhering to a base material for wallpaper finishing to paste wallpaper or an interior base board typified by gypsum board. It is extremely useful as an interior building material. Examples of interior building materials include interior building materials such as baseboards, surrounding edges, parting, inspection openings, and waist walls.

壁紙は、紙製、布製、織物製、塩化ビニル樹脂や多孔質ポリオレフィン樹脂からなるプラスチック製など種々の素材からなるものであるが、通常、その貼着面には紙が積層されている。この紙面に、本発明の建築材料は、後述する水性接着剤を使用した場合に強く接着するので、本発明の建築材料は壁紙仕上げ用下地材として有用となる。なお、壁紙は、その貼着面が紙などの天然繊維からなるものであれば良く、天然繊維の布製や織物製であって天然繊維の面が露出しているものは、必ずしも紙の貼着面が積層されている必要はない。
また、石膏ボードも通常表皮材として紙が積層されているので、同様に水性接着剤を用いた場合その上に使用される内装建材として利用価値が高いものとなる。更に驚くべきことに、石膏ボード上に接着された壁紙仕上げ用下地材は、その段差を埋めるために無機物と水溶性接着剤とからなるペースト状のパテが使用されることがあるが、このようなパテとの接着性も向上することが分かった。
The wallpaper is made of various materials such as paper, cloth, fabric, plastic made of vinyl chloride resin or porous polyolefin resin, and usually paper is laminated on the sticking surface. Since the building material of the present invention strongly adheres to this paper surface when a water-based adhesive described later is used, the building material of the present invention is useful as a base material for wallpaper finishing. In addition, the wallpaper should just be what the sticking surface consists of natural fibers, such as paper, and the thing which is made of natural fiber cloth or textiles and the surface of the natural fiber is exposed is not necessarily paper sticking. The surfaces need not be stacked.
Also, since gypsum board is usually laminated with paper as a skin material, when a water-based adhesive is used in the same manner, it is highly useful as an interior building material used on it. Surprisingly, a base material for wallpaper finishing adhered on a gypsum board may use a paste-like putty composed of an inorganic substance and a water-soluble adhesive to fill the level difference. It was found that the adhesiveness with the putty also improved.

本発明の施工方法の発明においては、建築材料と壁紙や石膏ボードなどの被着体との接着に、水性接着剤を使用することが必要である。水性接着剤を使用することにより、アミロペクチンの水不溶性の性質と被着体の天然繊維からなる被着面の性質とが、水性であるという特質と好適に絡まって、高い接着強度を発現しているものと推察される。従って、非水性の有機溶媒系接着剤ではその効果がでない。   In the invention of the construction method of the present invention, it is necessary to use a water-based adhesive for adhesion between building materials and adherends such as wallpaper and gypsum board. By using a water-based adhesive, the water-insoluble nature of amylopectin and the nature of the adherend surface consisting of the natural fibers of the adherend are suitably entangled with the property of being water-based, and high adhesive strength is expressed. It is assumed that there is. Therefore, non-aqueous organic solvent adhesives are not effective.

当該水性接着剤としては、デンプン系接着剤、膠系接着剤、セルロース系接着剤、カゼイン系接着剤などの水に接着成分が溶解した水溶液タイプ、或いはアクリル樹脂エマルジョン接着剤、ウレタン樹脂エマルジョン接着剤、エチレン-酢酸ビニル樹脂エマルジョン接着剤、酢酸ビニル樹脂エマルジョン接着剤、ポリビニルアルコール系接着剤、天然ゴムラテックス接着剤などの水に接着成分が乳化縣濁している水分散タイプの何れの接着剤も使用できる。
具体的な施工方法は特に限定されず従来公知の方法が採用される。
Examples of the water-based adhesive include starch-based adhesives, glue-based adhesives, cellulose-based adhesives, casein-based adhesives, and other aqueous solution types in which adhesive components are dissolved, acrylic resin emulsion adhesives, urethane resin emulsion adhesives , Ethylene-vinyl acetate resin emulsion adhesives, vinyl acetate resin emulsion adhesives, polyvinyl alcohol adhesives, natural rubber latex adhesives, etc. it can.
A concrete construction method is not particularly limited, and a conventionally known method is adopted.

本発明を次の実施例で更に説明する。次の実施例は、説明のためのものであり、いかなる意味においても本発明はこれに限定されるものではない。また、実施例の中で説明されている特徴の組み合わせすべてが本発明の解決手段に必須のものとは限らない。
以下の実施例及び比較例で用いた各種成分と略号は、以下の通りである。
The invention is further illustrated in the following examples. The following examples are illustrative and the invention is not limited in any way. In addition, not all combinations of features described in the embodiments are essential to the solution means of the present invention.
Various components and abbreviations used in the following examples and comparative examples are as follows.

(A)ポリオレフィン樹脂:
(1)ポリプロピレン樹脂(プライムポリプロJ705UG、プライムポリマー社製;
PPと略す) MFR=9.0
(2)ポリエチレン樹脂(エボリューSP0510、プライムポリマー社製;
PEと略す) MFR=0.5
(B)アミロペクチン:
(1)うるち米由来デンプン
アミロペクチン含有量 85重量%、アミロース含有量 15重量%
(2)コンスターチ由来デンプン
アミロペクチン含有量 75重量%、アミロース含有量 25重量%
(3)もち米由来デンプン
アミロペクチン含有量 100重量%
(C)フッ素系樹脂またはアクリル変性樹脂:
(1)フッ素系樹脂:プラヘルパーPEX1505、東京インキ社製
(2)アクリル変性樹脂:メタブレンP−530A、三菱レイヨン社製
(D)α-オレフィン共重合樹脂:
(1)タフマー、三井化学社製
(E)その他添加剤:
(1)セルロース(木粉)
(F)水性接着剤:
(1)デンプン系接着剤(ヤヨイ化学工業社製)
(2)カゼイン系接着剤(新田ゼラチン社製)
(3)天然ゴム系接着剤(積水化学工業社製)
(4)セルロース系接着剤(セメダイン社製)
(5)酢酸ビニル系接着剤(コニシ社製)
(G)被着体:
(1)塩化ビニル製壁紙(接着面:紙)
(2)下地調整剤(パテ):下塗り用パテ アタッチ(ヤヨイ化学工業製)
(A) Polyolefin resin:
(1) Polypropylene resin (Prime Polypro J705UG, manufactured by Prime Polymer;
(Abbreviated as PP) MFR = 9.0
(2) Polyethylene resin (Evolue SP0510, manufactured by Prime Polymer;
(Abbreviated as PE) MFR = 0.5
(B) Amylopectin:
(1) Starch derived from glutinous rice Amylopectin content 85% by weight, amylose content 15% by weight
(2) Starch derived from starch Amylopectin content 75% by weight, amylose content 25% by weight
(3) Starch derived from glutinous rice Amylopectin content 100% by weight
(C) Fluorine resin or acrylic modified resin:
(1) Fluorine-based resin: Plastic Helper PEX1505, manufactured by Tokyo Ink Co., Ltd. (2) Acrylic modified resin: Metabrene P-530A, Mitsubishi Rayon Co., Ltd. (D) α-olefin copolymer resin:
(1) Tuffmer, Mitsui Chemicals (E) Other additives:
(1) Cellulose (wood flour)
(F) Water-based adhesive:
(1) Starch adhesive (manufactured by Yayoi Chemical Co., Ltd.)
(2) Casein adhesive (Nitta Gelatin)
(3) Natural rubber adhesive (manufactured by Sekisui Chemical Co., Ltd.)
(4) Cellulosic adhesive (made by Cemedine)
(5) Vinyl acetate adhesive (manufactured by Konishi)
(G) Adherent:
(1) Vinyl chloride wallpaper (adhesive surface: paper)
(2) Substrate conditioner (putty): Putty attach for undercoat (manufactured by Yayoi Chemical Industries)

実施例1〜8、比較例1〜6
表2に示す処方に従って、ポリオレフィン樹脂、デンプン或いはセルロース、フッ素系樹脂またはアクリル変性樹脂、α―オレフィン共重合樹脂を押出機に投入し、150乃至200℃のシリンダー温度で溶融混練して押出し、厚さ2mm×幅35mmのシート状成形体を作製した。得られた成形体について、以下の方法で各種性状を測定し、その結果を表2に示した。
Examples 1-8, Comparative Examples 1-6
In accordance with the formulation shown in Table 2, polyolefin resin, starch or cellulose, fluororesin or acrylic modified resin, α-olefin copolymer resin is put into an extruder, melt kneaded at a cylinder temperature of 150 to 200 ° C., extruded, A sheet-like molded body having a thickness of 2 mm and a width of 35 mm was produced. About the obtained molded object, various properties were measured by the following methods, and the results are shown in Table 2.

(1)表面固有抵抗値:
JIS C 2170「静電気電荷蓄積を防止する固体平面材料の抵抗及び抵抗率試験方法」に準拠して測定した。
(2)ぬれ張力:
JIS K 6768「プラスチック−フィルム及びシート−ぬれ張力試験方法」に準拠して測定した。
(3)下地調整剤との接着試験:
各実施例および比較例で得られた基材(幅35mm×長さ200mm)の板に下地調整剤を均一に塗布し、常温で7日間静置した後、碁盤目剥離試験(25マス)を実施して密着性を確認した。
評価方法
○:剥離せず
△:剥離数が5マス未満
×:剥離数が5マス以上
(4)壁紙との接着試験:
各実施例および比較例で得られた基材(幅35mm×長さ200mm)に、表1に示す接着剤をその紙面に塗布した塩化ビニル製壁紙を貼り合わせ、常温で7日間放置したのち後、手で壁紙を剥離して確認した。
評価方法
○:壁紙が材破した。
△:剥離する際抵抗が大きいが、基材−接着剤間で界面剥離する。
×:剥離時に抵抗がなく、基材−接着剤間で界面剥離する。
(1) Surface resistivity:
Measured in accordance with JIS C 2170 “Testing method for resistance and resistivity of solid planar materials to prevent electrostatic charge accumulation”.
(2) Wetting tension:
Measured in accordance with JIS K 6768 "Plastics-Film and Sheet-Wetting tension test method".
(3) Adhesion test with substrate conditioner:
After applying the substrate conditioner uniformly to the base plate (width 35mm x length 200mm) obtained in each example and comparative example and leaving it to stand at room temperature for 7 days, a cross-cut peel test (25 squares) was performed. Implemented to confirm adhesion.
Evaluation method ○: No peeling Δ: Number of peeling is less than 5 squares ×: Number of peeling is 5 squares or more (4) Adhesion test with wallpaper:
After pasting the base material (width 35mm x length 200mm) obtained in each example and comparative example with a wallpaper made of vinyl chloride coated with the adhesive shown in Table 1 on the paper surface and leaving it at room temperature for 7 days, Confirmed by peeling the wallpaper by hand.
Evaluation method ○: The wallpaper was damaged.
Δ: Resistance is high when peeling, but interfacial peeling occurs between the substrate and the adhesive.
X: There is no resistance at the time of peeling, and interface peeling occurs between the substrate and the adhesive.

Figure 0005208899
Figure 0005208899

グルコースの重合体であるデンプンやセルロースを全く含まない成型体(比較例1,2)では、下地調整剤や壁紙が全く接着しない。表面固有抵抗値が極めて高く、ぬれ張力が低いことがこの結果を支持している。デンプンと同じグルコースの重合体であるセルロースを含む成型体(比較例3,4)では、表面固有抵抗値、ぬれ張力がほとんど改善されず、下地調整剤や壁紙との接着性も悪い。アミロペクチンの配合量が、ポリオレフィン樹脂100重量部に対して100重量部以下の場合は(比較例5,6)、水洗直後の表面固有抵抗値が低くなり、下地調整剤との接着剤との接着性は改善されるものの、壁紙との接着性は未だ不十分である。しかるに、実施例1〜8の成型体は、水洗前の表面固有抵抗値が低く、さらに水洗することにより水洗直後は著しく表面固有抵抗値が減少する。また、ぬれ張力も高い。これはアミロペクチンを配合することにより水との親和性が高くなり、その結果、水性接着剤との親和性も向上し、壁紙並びに下地調整剤との接着性に優れた効果を発揮することを支持するものである。   In the moldings (Comparative Examples 1 and 2) that do not contain starch or cellulose, which are glucose polymers, the substrate conditioner and wallpaper do not adhere at all. This result is supported by extremely high surface resistivity and low wetting tension. In the molded body containing cellulose, which is the same glucose polymer as starch (Comparative Examples 3 and 4), the surface specific resistance value and the wetting tension are hardly improved, and the adhesion to the substrate conditioner and wallpaper is poor. When the blending amount of amylopectin is 100 parts by weight or less with respect to 100 parts by weight of the polyolefin resin (Comparative Examples 5 and 6), the surface specific resistance value immediately after washing with water becomes low, and adhesion with an adhesive with a base preparation agent Although the property is improved, the adhesion to the wallpaper is still insufficient. However, the molded bodies of Examples 1 to 8 have a low surface resistivity before washing with water, and the surface resistivity decreases significantly immediately after washing by washing with water. Also, the wetting tension is high. This increases the affinity with water by adding amylopectin, and as a result, it also improves the affinity with water-based adhesives, and supports the excellent effect of adhesiveness with wallpaper and substrate conditioners. To do.

Claims (6)

(A)ポリオレフィン樹脂、および(B)アミロペクチンを含有してなるポリオレフィン樹脂組成物であって、(A)ポリオレフィン樹脂100重量部に対して、100重量部乃至900重量部の(B)アミロペクチンを含有する前記樹脂組成物の押出し成形体からなる壁紙仕上げ用下地材または内装建材と、天然繊維からなる被着面を有する内装仕上げ材または内装下地ボードとを水性接着剤を用いて接合することを特徴とする建築材料の施工方法。 A polyolefin resin composition comprising (A) a polyolefin resin and (B) amylopectin, comprising 100 parts by weight to 900 parts by weight of (B) amylopectin relative to 100 parts by weight of (A) polyolefin resin A base material for wallpaper finishing or interior building material made of an extruded product of the resin composition is joined to an interior finishing material or interior base board having an adherent surface made of natural fibers using an aqueous adhesive. Construction method of building materials. ポリオレフィン樹脂組成物が、更に、(C)フッ素系樹脂またはアクリル変性樹脂を、(A)ポリオレフィン樹脂と(B)アミロペクチンの合計量100重量部に対して0.5乃至10重量部含有することを特徴とする請求項1に記載の建築材料の施工方法。The polyolefin resin composition further contains (C) a fluorine-based resin or an acrylic-modified resin in an amount of 0.5 to 10 parts by weight with respect to 100 parts by weight of the total amount of (A) polyolefin resin and (B) amylopectin. The construction material construction method according to claim 1, wherein the construction material is a construction material. ポリオレフィン樹脂組成物が、更に、(D)α-オレフィン共重合樹脂を、(A)ポリオレフィン樹脂と(B)アミロペクチンの合計量100重量部に対して0.5乃至15重量部含有することを特徴とする請求項1または2に記載の建築材料の施工方法。The polyolefin resin composition further comprises (D) α-olefin copolymer resin in an amount of 0.5 to 15 parts by weight with respect to 100 parts by weight of the total amount of (A) polyolefin resin and (B) amylopectin. The construction material construction method according to claim 1 or 2. (A)ポリオレフィン樹脂、および(B)アミロペクチンを含有してなるポリオレフィン樹脂組成物であって、(A)ポリオレフィン樹脂100重量部に対して、100重量部乃至900重量部の(B)アミロペクチンを含有する前記樹脂組成物の押出し成形体からなる壁紙仕上げ用下地材または内装建材と、パテとを接合することを特徴とする建築材料の施工方法。A polyolefin resin composition comprising (A) a polyolefin resin and (B) amylopectin, comprising 100 parts by weight to 900 parts by weight of (B) amylopectin relative to 100 parts by weight of (A) polyolefin resin A building material construction method comprising joining a base material for finishing a wallpaper or an interior building material made of an extruded product of the resin composition and a putty. ポリオレフィン樹脂組成物が、更に、(C)フッ素系樹脂またはアクリル変性樹脂を、(A)ポリオレフィン樹脂と(B)アミロペクチンの合計量100重量部に対して0.5乃至10重量部含有することを特徴とする請求項4に記載の建築材料の施工方法。The polyolefin resin composition further contains (C) a fluorine-based resin or an acrylic-modified resin in an amount of 0.5 to 10 parts by weight with respect to 100 parts by weight of the total amount of (A) polyolefin resin and (B) amylopectin. The construction material construction method according to claim 4, wherein the construction material is a construction material. ポリオレフィン樹脂組成物が、更に、(D)α-オレフィン共重合樹脂を、(A)ポリオレフィン樹脂と(B)アミロペクチンの合計量100重量部に対して0.5乃至15重量部含有することを特徴とする請求項4または5に記載の建築材料の施工方法。The polyolefin resin composition further comprises (D) α-olefin copolymer resin in an amount of 0.5 to 15 parts by weight with respect to 100 parts by weight of the total amount of (A) polyolefin resin and (B) amylopectin. The construction material construction method according to claim 4 or 5.
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