JP6905396B2 - Dust scattering prevention material and its manufacturing method - Google Patents
Dust scattering prevention material and its manufacturing method Download PDFInfo
- Publication number
- JP6905396B2 JP6905396B2 JP2017119602A JP2017119602A JP6905396B2 JP 6905396 B2 JP6905396 B2 JP 6905396B2 JP 2017119602 A JP2017119602 A JP 2017119602A JP 2017119602 A JP2017119602 A JP 2017119602A JP 6905396 B2 JP6905396 B2 JP 6905396B2
- Authority
- JP
- Japan
- Prior art keywords
- scattering prevention
- soil
- prevention material
- water
- dust scattering
- 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.)
- Active
Links
Images
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は、粉塵飛散防止材、及びその製造方法に関する。 The present invention relates to a dust scattering prevention material and a method for producing the same.
土壌貯蔵施設においては、風による表層の飛散や雨による流出を防止するため、日々の作業の終了時に即日覆土したり、シートで覆ったりしている。土壌が粉塵として飛散することを防止するものとして、例えば特許文献１に開示されているように、ポリビニルアルコールを含む粉塵飛散防止材を土壌の表層に散布する方法が知られている。
In soil storage facilities, in order to prevent the surface layer from scattering due to wind and the outflow due to rain, the soil is covered with soil or a sheet at the end of daily work on the same day. As a method for preventing the soil from scattering as dust, for example, as disclosed in
しかしながら、ポリビニルアルコールを含有する従来の粉塵飛散防止材は、粘性が高く散布しにくい傾向がある。特に気温が低い場合にその傾向が顕著である。 However, conventional dust scattering prevention materials containing polyvinyl alcohol tend to have high viscosity and are difficult to spray. This tendency is particularly noticeable when the temperature is low.
そこで本発明は、散布しやすい粉塵飛散防止材を提供することを目的とする。また、その製造方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a dust scattering prevention material that is easy to spray. Another object of the present invention is to provide a method for producing the same.
本発明は、水と、ポリ酢酸ビニルと、ポリビニルアルコールとを含有する粉塵飛散防止材であって、水とポリ酢酸ビニルとの体積比が９０：１０〜９９．２：０．８であり、水とポリ酢酸ビニルとの合計体積を１００％としたときのポリビニルアルコールの体積が０．００５％〜０．５％である。 The present invention is a dust scattering prevention material containing water, polyvinyl acetate, and polyvinyl alcohol, and the volume ratio of water to polyvinyl acetate is 90: 10-99.2: 0.8. The volume of polyvinyl alcohol is 0.005% to 0.5% when the total volume of water and polyvinyl acetate is 100%.
この粉塵飛散防止材は、適度な粘性を有しており散布しやすい。そして、散布された粉塵飛散防止材は土壌の表面で皮膜を形成するため、土壌の表層から粉塵が飛散することが防止される。 This dust scattering prevention material has an appropriate viscosity and is easy to spray. Then, since the sprayed dust scattering prevention material forms a film on the surface of the soil, dust is prevented from scattering from the surface layer of the soil.
水とポリ酢酸ビニルとの体積比は９８：２〜９９．２：０．８であってもよい。 The volume ratio of water to polyvinyl acetate may be 98: 2-99.2: 0.8.
本発明の粉塵飛散防止材は、水とポリ酢酸ビニルとポリビニルアルコールとの合計重量を１００％として、１．０質量％以下の増粘剤を更に含んでいてもよい。降雨直後等のように土壌の含水比が高い場合は、粉塵飛散防止材を散布した場合に土壌中の水によって粉塵飛散防止材が薄まり、飛散防止効果が十分に奏されないことも考えられる。このとき、粉塵飛散防止材が増粘剤を含んでいると、粉塵飛散防止材が薄まったとしても十分な皮膜を形成することができる。 The dust scattering prevention material of the present invention may further contain a thickener of 1.0% by mass or less, assuming that the total weight of water, polyvinyl acetate and polyvinyl alcohol is 100%. When the water content of the soil is high, such as immediately after rainfall, it is possible that the water in the soil dilutes the dust scattering prevention material when the dust scattering prevention material is sprayed, and the dust scattering prevention effect is not sufficiently achieved. At this time, if the dust scattering prevention material contains a thickener, a sufficient film can be formed even if the dust scattering prevention material is thinned.
上記増粘剤は、多糖類であることが好ましい。 The thickener is preferably a polysaccharide.
また、本発明は、水と、ポリ酢酸ビニルと、ポリビニルアルコールとを混合する工程を有し、水とポリ酢酸ビニルとの体積比が９０：１０〜９９．２：０．８であり、水とポリ酢酸ビニルとの合計体積を１００％としたときのポリビニルアルコールの体積が０．００５％〜０．５％である、粉塵飛散防止材の製造方法を提供する。 The present invention also includes a step of mixing water, polyvinyl acetate, and polyvinyl alcohol, and the volume ratio of water to polyvinyl acetate is 90: 10-99.2: 0.8, and water. Provided is a method for producing a dust scattering preventing material, wherein the volume of polyvinyl alcohol is 0.005% to 0.5% when the total volume of polyvinyl acetate and polyvinyl acetate is 100%.
本発明によれば、散布しやすい粉塵飛散防止材を提供することができる。また、その製造方法を提供することができる。 According to the present invention, it is possible to provide a dust scattering prevention material that is easy to spray. Moreover, the manufacturing method can be provided.
以下、本発明の好適な実施形態について詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail.
本実施形態の粉塵飛散防止材は、土壌の表層に散布する液状の混合物であって、水と、ポリ酢酸ビニルと、ポリビニルアルコールを含有する。 The dust scattering prevention material of the present embodiment is a liquid mixture to be sprayed on the surface layer of soil, and contains water, polyvinyl acetate, and polyvinyl alcohol.
水とポリ酢酸ビニルとの体積比は９０：１０〜９９．２：０．８であり、この体積比は９８：２〜９９．２：０．８であることが好ましい。体積比がこれらの範囲内にあると、粉塵飛散防止材の粘性が散布に程よい状態に維持され、且つ、土壌に散布した場合に土壌の表面に高分子からなる皮膜を形成することができる。 The volume ratio of water to polyvinyl acetate is 90: 10-99.2: 0.8, and this volume ratio is preferably 98: 2-99.2: 0.8. When the volume ratio is within these ranges, the viscosity of the dust scattering prevention material is maintained in a state suitable for spraying, and when sprayed on the soil, a film made of a polymer can be formed on the surface of the soil.
ポリビニルアルコールの含有量は、水とポリ酢酸ビニルとの合計体積を１００％としたとき、０．００５体積％〜０．５体積％である。下限値としては０．０１体積％や０．０５体積％であってもよく、上限値としては０．３体積％や０．１体積％であってもよい、ポリビニルアルコールの含有量が高すぎると粉塵飛散防止材の粘性が高くなって散布しにくくなる傾向がある。また、ポリビニルアルコールの含有量が低すぎると、ポリ酢酸ビニルが水に溶解しにくくなる傾向がある。これらの事情からポリビニルアルコールの含有量は上記範囲内にあることが好ましい。 The content of polyvinyl alcohol is 0.005% by volume to 0.5% by volume when the total volume of water and polyvinyl acetate is 100%. The lower limit may be 0.01% by volume or 0.05% by volume, and the upper limit may be 0.3% by volume or 0.1% by volume. The content of polyvinyl alcohol is too high. The viscosity of the dust scattering prevention material tends to increase, making it difficult to spray. Further, if the content of polyvinyl alcohol is too low, polyvinyl acetate tends to be difficult to dissolve in water. From these circumstances, the content of polyvinyl alcohol is preferably within the above range.
ポリビニルアルコールは、粉塵飛散防止材中ではポリビニルアルコール分子の状態で存在していてもよく、酢酸ビニルの乳化重合の残余物の形態として存在していてもよい。その他、ポリビニルアルコール分子に由来する分子構造の形態で存在していればよい。 The polyvinyl alcohol may be present in the dust scattering preventive material in the form of polyvinyl alcohol molecules, or may be present in the form of a residue of emulsion polymerization of vinyl acetate. In addition, it may exist in the form of a molecular structure derived from a polyvinyl alcohol molecule.
粉塵飛散防止材中の水、ポリ酢酸ビニル及びポリビニルアルコールの組成割合は、例えば、核磁気共鳴分光法（ＮＢＲ）、赤外吸収分光法（ＩＲ）、サイズ排除クロマトグラフィー（ＳＥＣ）、液体クロマトグラフィー（ＬＣ）、熱分解−質量分析法（Ｐｙｒｏｌｙｓｉｓ−ＭＳ）によって測定することができる。 The composition ratios of water, polyvinyl acetate and polyvinyl alcohol in the dust scattering inhibitor are, for example, nuclear magnetic resonance spectroscopy (NBR), infrared absorption spectroscopy (IR), size exclusion chromatography (SEC), and liquid chromatography. It can be measured by (LC), pyrolysis-mass spectrometry (Pyrrolisis-MS).
粉塵飛散防止材は、増粘剤を含むことが好ましい。増粘剤は、粉塵飛散防止材の粘性を高くし、特に、対象土壌の含水比が高い場合に粉塵飛散防止材を適用するのに役立つ。増粘剤の含有量は、水とポリ酢酸ビニルとポリビニルアルコールとの合計重量を１００％として、１．０質量％以下であることが好ましい。下限値としては、０．１重量％、０．２重量％、０．４重量％が好ましい。増粘剤の含有量が１．０重量％を超えると粉塵飛散防止材の粘性が高くなり、散布しにくくなる傾向がある。 The dust scattering prevention material preferably contains a thickener. The thickener increases the viscosity of the dust shatterproof material, and is particularly useful for applying the dust shatterproof material when the water content of the target soil is high. The content of the thickener is preferably 1.0% by mass or less, with the total weight of water, polyvinyl acetate and polyvinyl alcohol as 100%. The lower limit values are preferably 0.1% by weight, 0.2% by weight, and 0.4% by weight. If the content of the thickener exceeds 1.0% by weight, the viscosity of the dust scattering prevention material becomes high, and it tends to be difficult to spray.
増粘剤としては、水溶性であることが好ましく、中でも多糖類が好ましい。多糖類としては、グァーガム、アラビアガム、キサンタンガム、カルボキシメチルセルロース、タマリンドシードガム、カラギーナン、カラヤガム、スクシノグリカン、ローカストビーンガム、大豆多糖類、プルラン、サイリウムシードガム、カードラン、アルギン酸・ＰＧＡ、ジェランガム、グルコマンナン、寒天、ペクチン等が挙げられる。これらの中でもガラクトマンナンを主成分とするグァーガムが好ましい。 The thickener is preferably water-soluble, with polysaccharides being preferred. Polysaccharides include guar gum, arabic gum, xanthan gum, carboxymethyl cellulose, tamarind seed gum, carrageenan, karaya gum, succinoglycan, locust bean gum, soybean polysaccharide, pullulan, psyllium seed gum, curdlan, alginic acid / PGA, gellan gum, Examples include glucomannan, agar, pectin and the like. Among these, guar gum containing galactomannan as a main component is preferable.
粉塵飛散防止材の調製方法としては、ポリ酢酸ビニルとポリビニルアルコールとを適量の水に混合して溶解させた後に、加水して上記組成割合とする方法が好ましい。例えば、ポリ酢酸ビニル及びポリビニルアルコールを、ポリ酢酸ビニルの１倍〜３倍の体積の水に混合し（つまりポリ酢酸ビニルとして２５体積％〜５０体積％とし）、これを常温で、又は加温しながら撹拌して溶解させる。そして、全体の組成割合が上記組成割合の範囲内となるように水を追加する。最後に、必要であれば増粘剤を添加して撹拌する。また、各時点でダマが発生したときには、混合液を濾過してダマを取り除いてもよい。このようにして粉塵飛散防止材を調製することができる。 As a method for preparing the dust scattering prevention material, a method in which polyvinyl acetate and polyvinyl alcohol are mixed and dissolved in an appropriate amount of water and then watered to obtain the above composition ratio is preferable. For example, polyvinyl acetate and polyvinyl alcohol are mixed with 1 to 3 times the volume of water as polyvinyl acetate (that is, 25% to 50% by volume as polyvinyl acetate), and this is heated at room temperature or by heating. Stir while stirring to dissolve. Then, water is added so that the total composition ratio is within the range of the above composition ratio. Finally, if necessary, add a thickener and stir. Further, when lumps occur at each time point, the lumps may be removed by filtering the mixed solution. In this way, the dust scattering prevention material can be prepared.
上記のようにして調製された粉塵飛散防止材は、上記組成割合を有しているので、適度な粘性を有しており散布しやすい。そして、散布された粉塵飛散防止材は土壌の表面で皮膜を形成するため、土壌の表層から粉塵が飛散することが防止される。 Since the dust scattering prevention material prepared as described above has the above composition ratio, it has an appropriate viscosity and is easy to spray. Then, since the sprayed dust scattering prevention material forms a film on the surface of the soil, dust is prevented from scattering from the surface layer of the soil.
粉塵飛散防止材の散布方法としては、散水車（機）、ハイドロシーダー（車）、ディストリビュータ、ウオータージェット、解体現場の粉塵散水用、無線式散水機（重機）、散水スプリンクラー等を用いる方法が挙げられる。 Examples of the method of spraying the dust scattering prevention material include a sprinkler (machine), a hydroceder (car), a distributor, a water jet, a dust sprinkler at a dismantling site, a wireless sprinkler (heavy machine), and a sprinkler. Be done.
また、粉塵飛散防止材が増粘剤を含んでいる場合は、粉塵飛散防止材が土壌に含まれる水で薄まったとしても十分な皮膜を形成することができる。例えば、降雨直後等のように土壌の含水比が高い場合は、散布した粉塵飛散防止材が土壌中の水によって薄まることが考えられるが、増粘剤の添加によって粘性が高められていると、土壌に浸み込みにくく、土壌の表面に皮膜が形成されて飛散防止効果が奏される。 Further, when the dust scattering prevention material contains a thickener, a sufficient film can be formed even if the dust scattering prevention material is diluted with water contained in the soil. For example, when the water content of the soil is high, such as immediately after rainfall, it is possible that the sprayed dust scattering prevention material is diluted by the water in the soil, but if the viscosity is increased by the addition of a thickener, It does not easily penetrate into the soil, and a film is formed on the surface of the soil to prevent scattering.
以上、本発明の好適な実施形態について説明したが、本発明は上記実施形態に何ら限定されるものではない。 Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.
以下、実験例を挙げて本発明の内容をより具体的に説明する。なお、本発明は下記実験例に限定されるものではない。 Hereinafter, the contents of the present invention will be described in more detail with reference to experimental examples. The present invention is not limited to the following experimental examples.
１．ポリプロピレンシートに対する皮膜形成試験
粉塵飛散防止材としての適正な組成割合を検討した。すなわち、組成割合を変更しながら、皮膜を形成する能力の程度について検討した。実施手順は以下のとおりである。
1. 1. Film formation test on polypropylene sheet The appropriate composition ratio as a dust scattering prevention material was examined. That is, the degree of ability to form a film was examined while changing the composition ratio. The implementation procedure is as follows.
（１）ポリ酢酸ビニル：水＝４０：６０で含み、更に、これらの合計体積に対してポリビニルアルコールを０．５％以下で含む基準混合液を用意した。
（２）この基準混合液を少量ずつに小分けし、それぞれ体積割合として水で２５倍、５０倍、７５倍、１００倍、１２５倍に薄めた。これら５種類の混合液を粉塵飛散防止材Ｎｏ．１〜５とした。
（４）マイクロピペットを用いて、縦６．０ｃｍ×横４．０ｃｍにカットした５枚のポリプロピレン製のシートの上に、粉塵飛散防止材Ｎｏ．１〜５をそれぞれ５．０ｍｌずつ塗布した。
（５）室温で２４時間養生した。
(1) A reference mixed solution containing polyvinyl acetate: water = 40: 60 and polyvinyl alcohol in an amount of 0.5% or less based on the total volume of these was prepared.
(2) This reference mixture was divided into small portions and diluted with water 25 times, 50 times, 75 times, 100 times, and 125 times, respectively, as a volume ratio. These five types of mixed liquids are used as the dust scattering prevention material No. It was set to 1-5.
(4) Using a micropipette, the dust scattering prevention material No. was placed on five polypropylene sheets cut to a length of 6.0 cm and a width of 4.0 cm. 5.0 ml each of 1 to 5 was applied.
(5) It was cured at room temperature for 24 hours.
それぞれの粉塵飛散防止材の表面が白色から透明になっていることを確認し、目視観察によって皮膜の形成能力を判定した。結果を表１に示す。
・判定
Ｃ…皮膜に穴が少しでも観察された。
Ｂ…塗布面に穴が開かず、均一な皮膜が形成されていた。
Ａ…上記Ｂに加え、更に厚さが増し、強固な膜が形成されていた。
-Judgment C ... A hole was observed in the film as much as possible.
B ... No holes were formed on the coated surface, and a uniform film was formed.
A ... In addition to the above B, the thickness was further increased to form a strong film.
これらの結果から、ポリ酢酸ビニルの濃度が０．８体積％以上であると十分な皮膜を形成できることが分かった。 From these results, it was found that a sufficient film can be formed when the concentration of polyvinyl acetate is 0.8% by volume or more.
次に、ポリ酢酸ビニルの濃度が１．６体積％及び２．０体積％である場合に増粘剤を添加する試験を行った。実施手順は以下のとおりである。 Next, a test was conducted in which a thickener was added when the concentrations of polyvinyl acetate were 1.6% by volume and 2.0% by volume. The implementation procedure is as follows.
（１）上記基準混合液を少量ずつに小分けし、それぞれ体積割合として水で２０倍、２５倍に薄めた。これらを更に少量ずつに小分けし、当該混合液の重量１００％に対して０質量％、０．３重量％、０．５重量％、１．０重量％となるように多糖類系増粘剤を添加した。これら８種類の混合液を粉塵飛散防止材Ｎｏ．６〜１３とした。なお、粉塵飛散防止材Ｎｏ．１０は上記粉塵飛散防止材Ｎｏ．１と同一である。
（２）マイクロピペットを用いて、縦６．０ｃｍ×横４．０ｃｍにカットした８枚のポリプロピレン製のシートの上に、粉塵飛散防止材Ｎｏ．６〜１３をそれぞれ５．０ｍｌずつ塗布した。
（３）室温で２４時間養生した。
(1) The above-mentioned reference mixed solution was divided into small portions and diluted with water 20 times and 25 times as a volume ratio, respectively. These are further subdivided into small portions, and the polysaccharide thickener is added to 0% by mass, 0.3% by weight, 0.5% by weight, and 1.0% by weight with respect to 100% by weight of the mixed solution. Was added. These eight kinds of mixed liquids are used as the dust scattering prevention material No. It was set to 6 to 13. In addition, the dust scattering prevention material No.
(2) Using a micropipette, the dust scattering prevention material No. was placed on eight polypropylene sheets cut to a length of 6.0 cm and a width of 4.0 cm. 5.0 ml each of 6 to 13 was applied.
(3) It was cured at room temperature for 24 hours.
それぞれの粉塵飛散防止材の表面が白色から透明になっていることを確認し、目視観察によって皮膜の形成能力を判定した。結果を表２に示す。判定基準は上記Ａ〜Ｃと同様である。
これらの結果から、増粘剤を添加することによって厚さが増した強固な皮膜を形成できる場合があることが分かった。 From these results, it was found that the addition of a thickener may form a strong film with an increased thickness.
２．土壌に対する散布試験（乾燥土）
表３に示した細粒分含有率と含水比とを有する現場採取土、粘性土、及び砂質土に対し、上記粉塵飛散防止材Ｎｏ．１〜４を散布する試験を行った。実施手順は以下のとおりである。
For the on-site collected soil, cohesive soil, and sandy soil having the fine particle content and water content shown in Table 3, the above-mentioned dust scattering prevention material No. A test was conducted in which 1 to 4 were sprayed. The implementation procedure is as follows.
（１）上記三種類の土壌を用意し、室温で一週間風乾させた。
（２）乾燥させた三種の試験土をそれぞれ５枚のバット（２１０ｍｍ×１６９ｍｍ×３３ｍｍ）に分割して入れ、土壌表面に粉塵飛散防止材Ｎｏ．１〜４をそれぞれ穴あきポリ瓶によって散布し（散布量は２Ｌ／ｍ２）、４８時間室温で養生させた。各試験土のうち１つのバットに対しては散布しなかった。
（３）養生後、コンテナ（８００ｍｍ×５６０ｍｍ×４８０ｍｍ）にバットを入れ、送風機を稼働（風速１０ｍ／ｓ×１０分）させた。
（４）発生した粉塵の飛散量を測定した。
(1) The above three types of soil were prepared and air-dried at room temperature for one week.
(2) Each of the three types of dried test soil was divided into five vats (210 mm × 169 mm × 33 mm) and placed on the soil surface to prevent dust scattering. Each of 1 to 4 was sprayed with a perforated plastic bottle (spray amount was 2 L / m 2) and cured at room temperature for 48 hours. Not sprayed on one vat of each test soil.
(3) After curing, a bat was placed in a container (800 mm × 560 mm × 480 mm) and the blower was operated (wind speed 10 m / s × 10 minutes).
(4) The amount of dust scattered was measured.
粉塵の飛散量の結果を図１に示した。これらの結果から、未散布と比較し、すべての試験土（現場採取土、粘性土、砂質土）において、粉塵飛散防止材を散布した場合にはポリ酢酸ビニルの濃度が０．４体積％でも１／１０に、１．６体積％では１／１０００程度に粉塵飛散量を低減できることが分かった。 The result of the amount of dust scattered is shown in FIG. From these results, the concentration of polyvinyl acetate was 0.4% by volume when the dust scattering prevention material was sprayed on all the test soils (field-collected soil, cohesive soil, sandy soil) as compared with the unsprayed soil. However, it was found that the amount of dust scattered can be reduced to 1/10, and at 1.6% by volume, to about 1/1000.
３．土壌に対する散布試験（湿潤土）
７０．９％の細粒分含有率と３６．９％の含水比を有する粘性土を試験土として、上記粉塵飛散防止材Ｎｏ．８を散布する試験を行った。実施手順は以下のとおりである。なお、試験土として粘性土を選択した理由は、上記試験において粉塵飛散防止材を散布しなかった場合に最も粉塵の飛散量が多かったからである。
3. 3. Spray test on soil (wet soil)
Using cohesive soil having a fine particle content of 70.9% and a water content of 36.9% as test soil, the above-mentioned dust scattering prevention material No. A test was conducted in which 8 was sprayed. The implementation procedure is as follows. The reason why the cohesive soil was selected as the test soil is that the amount of dust scattered was the largest when the dust scattering prevention material was not sprayed in the above test.
（１）粘性土を室温で一週間風乾させた。
（２）乾燥させた粘性土を二つのバット（２１０ｍｍ×１６９ｍｍ×３３ｍｍ）に入れ、１００ｍｍ／ｈの強雨があった場合を想定し、含水比が３６．９％となるように加水した。
（３）片方のバット内の粘性土の表面に、上記粉塵飛散防止材Ｎｏ．８を穴あきポリ瓶によって散布し（散布量は２Ｌ／ｍ２）、４８時間室温で養生させた。他方のバット内の粘性土に対しては散布しなかった。
（４）養生後、コンテナ（８００ｍｍ×５６０ｍｍ×４８０ｍｍ）にバットを入れ、送風機を稼働（風速１０ｍ／ｓ×１０分）させた。
（５）発生した粉塵の飛散量を測定した。
(1) The cohesive soil was air-dried at room temperature for one week.
(2) The dried cohesive soil was placed in two vats (210 mm × 169 mm × 33 mm), and water was added so that the water content was 36.9%, assuming a case of heavy rain of 100 mm / h.
(3) On the surface of the cohesive soil in one of the bats, the above-mentioned dust scattering prevention material No. No. 8 was sprayed with a perforated plastic bottle (spray amount was 2 L / m 2) and cured at room temperature for 48 hours. It was not sprayed on the cohesive soil in the other vat.
(4) After curing, a bat was placed in a container (800 mm × 560 mm × 480 mm) and the blower was operated (wind speed 10 m / s × 10 minutes).
(5) The amount of dust scattered was measured.
粉塵の飛散量の結果を図２に示した。増粘剤を添加した粉塵飛散防止材Ｎｏ．８を散布した場合の飛散量は、未散布土の飛散量の１／１００程度になっていた。この結果から、増粘剤を添加した粉塵飛散防止材は湿潤土においても粉塵の飛散防止効果を有することが分かった。 The result of the amount of dust scattered is shown in FIG. Dust scattering prevention material No. to which a thickener was added. The amount of scattering when No. 8 was sprayed was about 1/100 of the amount of scattering of unsprayed soil. From this result, it was found that the dust scattering prevention material to which the thickener was added has the effect of preventing dust scattering even in wet soil.
本発明は、土壌の表面からの粉塵の飛散を防止することに利用することができる。 The present invention can be used to prevent dust from scattering from the surface of soil.
Claims (8)
前記水と前記ポリ酢酸ビニルとの体積比が９０：１０〜９９．２：０．８であり、
前記水と前記ポリ酢酸ビニルとの合計体積を１００％としたときの前記ポリビニルアルコールの体積が０．００５％〜０．５％であり、
前記水と前記ポリ酢酸ビニルと前記ポリビニルアルコールとの合計重量を１００％として、０．１重量％以上１．０質量％以下の増粘剤を更に含む、粉塵飛散防止材。 It is a dust scattering prevention material that contains water, polyvinyl acetate, and polyvinyl alcohol to prevent the soil from scattering as dust.
The volume ratio of the water to the polyvinyl acetate is 90: 10-99.2: 0.8.
The volume of the polyvinyl alcohol is 0.005% to 0.5% when the total volume of the water and the polyvinyl acetate is 100%.
A dust scattering prevention material further containing a thickener of 0.1% by weight or more and 1.0% by mass or less, with the total weight of the water, the polyvinyl acetate, and the polyvinyl alcohol as 100%.
水と、ポリ酢酸ビニルと、ポリビニルアルコールと、増粘剤とを混合する工程を有し、
前記水と前記ポリ酢酸ビニルとの体積比が９０：１０〜９９．２：０．８であり、
前記水と前記ポリ酢酸ビニルとの合計体積を１００％としたときの前記ポリビニルアルコールの体積が０．００５％〜０．５％であり、
前記水と前記ポリ酢酸ビニルと前記ポリビニルアルコールとの合計重量を１００％としたときの前記増粘剤の質量が０．１重量％以上１．０質量％以下である、粉塵飛散防止材の製造方法。 It is a method of manufacturing a dust scattering prevention material that prevents the soil from scattering as dust.
It has a step of mixing water, polyvinyl acetate, polyvinyl alcohol, and a thickener.
The volume ratio of the water to the polyvinyl acetate is 90: 10-99.2: 0.8.
The volume of the polyvinyl alcohol is 0.005% to 0.5% when the total volume of the water and the polyvinyl acetate is 100%.
Production of a dust scattering prevention material in which the mass of the thickener is 0.1% by weight or more and 1.0% by mass or less when the total weight of the water, the polyvinyl acetate and the polyvinyl alcohol is 100%. Method.
水と、ポリ酢酸ビニルと、ポリビニルアルコールとを含有し、前記水と前記ポリ酢酸ビニルとの体積比が９０：１０〜９９．２：０．８であり、前記水と前記ポリ酢酸ビニルとの合計体積を１００％としたときの前記ポリビニルアルコールの体積が０．００５％〜０．５％であり、前記水と前記ポリ酢酸ビニルと前記ポリビニルアルコールとの合計重量を１００％として、０．１重量％以上１．０質量％以下の増粘剤を更に含む粉塵飛散防止材を、前記土壌に散布して前記土壌の表面に皮膜を形成させる、粉塵飛散防止方法。It contains water, polyvinyl acetate, and polyvinyl alcohol, and the volume ratio of the water to the polyvinyl acetate is 90: 10-99.2: 0.8. The volume of the polyvinyl alcohol is 0.005% to 0.5% when the total volume is 100%, and 0.1 when the total weight of the water, the polyvinyl acetate, and the polyvinyl alcohol is 100%. A dust scattering prevention method in which a dust scattering prevention material further containing a thickener of weight% or more and 1.0% by mass or less is sprayed on the soil to form a film on the surface of the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017119602A JP6905396B2 (en) | 2017-06-19 | 2017-06-19 | Dust scattering prevention material and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017119602A JP6905396B2 (en) | 2017-06-19 | 2017-06-19 | Dust scattering prevention material and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019001953A JP2019001953A (en) | 2019-01-10 |
| JP6905396B2 true JP6905396B2 (en) | 2021-07-21 |
Family
ID=65007776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017119602A Active JP6905396B2 (en) | 2017-06-19 | 2017-06-19 | Dust scattering prevention material and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6905396B2 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4946716B1 (en) * | 1970-10-06 | 1974-12-11 | ||
| JPS53115684A (en) * | 1977-03-19 | 1978-10-09 | Mitsui Petrochem Ind Ltd | Powdery body scattering preventive agent |
| JPH03166288A (en) * | 1989-11-24 | 1991-07-18 | Ajinomoto Co Inc | Agent for preventing scattering of dust |
| JP2005296729A (en) * | 2004-04-07 | 2005-10-27 | Fujisash Co | Dust scattering prevention method and dust scattering inhibitor aqueous solution |
| JP4597922B2 (en) * | 2006-07-07 | 2010-12-15 | 新日本製鐵株式会社 | Method for producing spill preventive for granular deposits |
| JP5603004B2 (en) * | 2008-12-22 | 2014-10-08 | 電気化学工業株式会社 | Spill prevention agent for granular sediment containing a large amount of oil and method for producing the same |
| JP2013126625A (en) * | 2011-12-19 | 2013-06-27 | Taiheiyo Materials Corp | Bottom sediment treatment agent, and treatment method of bottom sediment using the same |
| JP2017061426A (en) * | 2015-09-25 | 2017-03-30 | 三菱製紙株式会社 | Method for producing composition for preventing scattering of polish chip of nail or skin |
-
2017
- 2017-06-19 JP JP2017119602A patent/JP6905396B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019001953A (en) | 2019-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69422767T2 (en) | Water-repellent rubber-modified asphalt compositions | |
| EP1817086B1 (en) | Fire extinguishing and/or fire-retardant compositions | |
| Carretti et al. | Physicochemical characterization of acrylic polymeric resins coating porous materials of artistic interest | |
| TW200906992A (en) | Improved paint formulations comprising cellulose ether/network building polymer fluid gel thickeners | |
| FI57807B (en) | FOERFARANDE FOER FRAMSTAELLNING AV SKUMMAT MATERIAL | |
| Ko et al. | Combining melt electrospinning and particulate leaching for fabrication of porous microfibers | |
| CN105111904B (en) | A kind of water paint and its preparation method and application | |
| Mastrangelo et al. | New horizons on advanced nanoscale materials for Cultural Heritage conservation | |
| JP6905396B2 (en) | Dust scattering prevention material and its manufacturing method | |
| EP0775181A1 (en) | Use of selected and biologically admissible stabilisers in polyvinyl ester-based impregnating agents for consolidating the ground | |
| Lee et al. | Fabrication of Superhydrophobic Surface on a Cellulose-based Material via Chemical Modification. | |
| CN104497839B (en) | It is capable of PU seal coats of high wetting Thief zone ground and preparation method thereof | |
| Donayre et al. | Eco-friendly improvement of water erosion resistance of unstable soils with biodegradable polymers | |
| CN105567030A (en) | Waterborne carpentry paint | |
| EP0897964B2 (en) | Proctective polymer film to remove soil and process for producing the same | |
| CN105199743A (en) | Water and soil conservation type degradable liquid mulching film and preparation and application thereof | |
| JP7075830B2 (en) | Dust scattering prevention material | |
| AU2015240496B2 (en) | Low degree of substitution sodium carboxymethylcellulose for soil stabilized and water retardant film | |
| JP7336617B2 (en) | Composition for preparing dust-scattering prevention material, dust-scattering prevention material, method for preparing dust-scattering prevention material | |
| JP4788139B2 (en) | Polytetrafluoroethylene aqueous dispersion | |
| EP4588990A1 (en) | Water-repelling/dust-repelling agent, ionic wax-based emulsion for water-repelling/dust-repelling agent, production method for water-repelling/dust-repelling agent, and method for preventing dust emission and moisture increase in open-air pile of deposits | |
| JP5110266B2 (en) | Dust scattering prevention agent and dust scattering prevention method | |
| CN103627280A (en) | Single-component water-based outdoor top-coat varnish | |
| JP7791058B2 (en) | Greening materials and methods | |
| CN105585861B (en) | A kind of modified pitch particle and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191203 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200917 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201006 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201102 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210105 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210216 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20210216 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210622 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210625 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6905396 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |