JP4789316B2 - Ground conditioner - Google Patents
Ground conditioner Download PDFInfo
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- JP4789316B2 JP4789316B2 JP2000313421A JP2000313421A JP4789316B2 JP 4789316 B2 JP4789316 B2 JP 4789316B2 JP 2000313421 A JP2000313421 A JP 2000313421A JP 2000313421 A JP2000313421 A JP 2000313421A JP 4789316 B2 JP4789316 B2 JP 4789316B2
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- agent
- cork powder
- cork
- filler
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- 239000007799 cork Substances 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 28
- 238000002360 preparation method Methods 0.000 claims description 22
- 239000010440 gypsum Substances 0.000 claims description 17
- 229910052602 gypsum Inorganic materials 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 5
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 5
- 150000004683 dihydrates Chemical class 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 238000004898 kneading Methods 0.000 description 5
- 235000013372 meat Nutrition 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 206010014970 Ephelides Diseases 0.000 description 1
- 208000003351 Melanosis Diseases 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 240000008289 Quercus suber Species 0.000 description 1
- 235000016977 Quercus suber Nutrition 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Description
【0001】
【発明の属する技術分野】
本発明は、例えば石膏ボード、合板、珪酸カルシウム板、石綿スレート板等の下地材の表面や目地部分等に埋設・塗布して表面の凹凸部分を平滑化して、下地材表面を調整する下地調整剤に関するものである。
【0002】
【従来の技術】
近年、建築物の内装工事において、石膏ボード、合板等を使用した乾式工法が多くなっている。しかも、これらの仕上げは、壁紙や塗装で仕上げることが主流となっており、このため下地調整剤の使用も多くなっている。このような下地調整剤は、石膏ボードや合板等の目地部に充填し、平滑にするための材料であり、充填効率を高めることが施工効率の向上につながる。
【0003】
このことから、昭和50年代中旬を境に、合成樹脂エマルションパテ(以後、繰りパテという。)から石膏を主成分とした合成樹脂石膏系パテ(以後、粉末パテという。)が主流となった。そして、昭和60年代には、無機系中空バルーン(シラスバルーン)を用いた軽量化品が生産販売されるようになり、現在では軽量化品が主流となっている。
【0004】
しかしながら、平成8年頃から新築物件での空気汚染がクローズアップされ、平成10年頃から産業廃棄物の問題が社会問題となってきている。また、地球温暖化の問題から、トータルの環境負荷がより少なくなる素材、方法等の検討が必要となってきた。
【0005】
このことは、建築物のさらなる気密性・断熱性の向上が進んでおり、また壁紙等の内装材でも多様化が進み、加工紙壁紙が徐々に多くなってきている。この結果、以前の壁紙は塩化ビニル製が多く、その厚みが0.4〜0.7mmであったが、近年の塩化ビニルを用いない壁紙の場合は0.1〜0.3mmと薄くなっている。
【0006】
このため、下地調整もより平滑性を要求されるようになり、サンドペーパーで研磨することが多くなり、施工効率の低下、及び壁紙の接着性の低下をきたすようになってきた。更に、内装需要も変化しており、増改装が増加しており、施工方法も変化している。
【0007】
【発明が解決しようとする課題】
ところで、壁紙用下地調整剤の必要条件は壁紙が接着することであり、接着性の向上はバインダー効果の高い固着剤の選定と配合量の増加にある。しかしながら、施工効率のアップは塗布回数の減少(肉ヤセの低下)とサンダー性の向上とであり、固着剤の増量は一般的に施工性の向上とは相反する関係にある。
【0008】
そこで、本発明は、壁紙の接着性の向上と、施工能率の向上との相反する特性を共に解決する下地調整剤を得ることを目的とする。
【0009】
【課題を解決するための手段】
請求項1に記載された発明に係る下地調整剤は、焼石膏とコルク粉末とを主成分とした充填剤と、固着剤とで構成されているものである。
【0011】
請求項2に記載された発明に係る下地調整剤は、炭酸カルシウム又は二水石膏を含む群から選ばれた無機充填剤とコルク粉末とを主成分とした充填剤と、固着剤とで構成されているものである。
【0012】
【発明の実施の形態】
本発明においては、固着剤と充填剤とからなる下地調整剤において、充填剤としてコルク粉末を含むものであるため、壁紙の接着性の向上と、施工能率の向上との相反する特性を共に解決することができる下地調整剤を得ることができる。
【0013】
本発明のより具体的な態様としては、反応硬化型下地調整剤と乾燥硬化型下地調整剤とがある。本発明における反応硬化型下地調整剤は、焼石膏とコルク粉末とを主成分とした充填剤と、固着剤とで構成されている。本発明における乾燥硬化型下地調整剤は、炭酸カルシウム、二水石膏を含む群から選ばれた無機充填剤とコルク粉末とを主成分とした充填剤と、固着剤とで構成されている。
【0014】
コルクはコルクガシの表層樹皮であり、非繊維状で14面体の密に詰まった小さな細胞よりなる。このことからコルクを粉砕した粉末も、コルクの性質が保持されており、軽量充填剤としての性質がある。しかも、本発明で用いるコルク粉末は弱い疎水性を有している。これは脂肪酸を30%含有しているためと考えられ、この性質から固着剤のコルクに対するヌレ性を低下させると考えられる。
【0015】
このコルク粉末の性質により、本発明の下地調整剤では、接着成分である固着剤を増量しても、サンダー性能を低下させない効果を有する。更に、下地調整剤を下地に塗布する際の塗布性も、石膏や炭酸カルシウム等の親水性充填剤と比較すると、粘さが低下し、塗布性の改善になり、脂肪酸塩等の塗布性改質剤の添加が不要となり、接着性も良くなる特徴も併せ持つ。
【0016】
また、この他の効果として、下地への水分の移行に伴う擬似硬化性の向上や、その際の充填剤粒子間の凝集力の緩和作用があり、肉ヤセの低減、肌別れの防止等が認められる。
【0017】
この性能はコルク粉末の粒径に影響を受け、その径が大きいほど充填効果が高いが、キメやスジ引きの点から500μ程度が限界であり、仕上げ用の下地調整剤では150μ以下でないとスジ引きが生じる。
【0018】
また、図1は本発明の充填剤であるコルク粉末の顕微鏡写真である。図に示す通り、コルクの細胞の長軸は25〜50μであり、このことから粒子径が10μ以下のものは、破砕細胞か外表皮等の粉末であり、粒径が20〜150μのものが下地調整剤に適している。
【0019】
次にコルク粉末の配合量であるが、焼石膏を用いた反応硬化型下地調整剤の場合、焼水石膏の水硬化反応によってペーストが硬化するには、カサ比で石膏の量が35%以上であることが必要であり、40%以上配合されていることのが望ましい。
【0020】
従って、反応硬化型の下地調整剤ではコルク粉末の配合量は、カサ比で60%が限界量であり、カサ比重が0.08のものを重量比で10%添加したものが最軽量化品(50%軽量化品)となる。
【0021】
コルク粉末のカサ比重については、カサ比重が0.2以上ある粉末もあるが、軽量化の点から30%の軽量化が限度であり、45%の軽量化を図るにはカサ比重が0.1以下であることが条件となる。尚、合成樹脂をコアにした樹脂系中空バルーンは、カサ比重が0.05以下のものもあるが、軽すぎて取扱に難があり、ペースト系の下地調整剤には適するが、粉末型下地調整剤には不向きである。
【0022】
なお、乾燥硬化型下地調整剤では、コルク粉末のカサ比が60%以上配合しても良く、コルク粉末の配合量が多くなるに従い、高粘性系固着剤を用いることにより適度な粘調性となり、塗布性のよいものが得られるものの、コルクの疎水性能と低比重のため水との混練り性が低下する問題が生じ、カサ比で80%が限界である。
【0023】
また、コルク粉末の配合量がカサ比で10%以下の場合は、反応硬化型下地調整剤も乾燥硬化型下地調整剤も塗布性については若干の改善は認められるものの、肉ヤセ防止の改善効果は少なく、シラスバルーンのような中空バルーンやバーミキュライト等の充填剤や骨材を併用する必要がある。しかしながら中空バルーンやバーミキュライト等の軽量骨材は無機系の充填剤であり、疎水効果がないことから脂肪酸系の添加剤やその他の改質剤を配合する必要があり、コルク粉末を配合した方がより効果的である。
【0024】
以上のことから、粒径が20〜150μのコルク粉末をカサ比で40〜60%配合したものは、塗工性をはじめとして、充填性能(肉ヤセ防止効果)、サンダー性能に優れた性能を有した施工効率の良い下地調整剤で、しかも充分な固着剤が配合されているため壁紙の接着性の優れた下地調整剤が得られる。
【0025】
更に、コルク粉末は連絡孔のない独立した細胞の泡状構造からなっており、この特性は粉末状下地調整剤の他に、製造時に高いシェアが掛かり、しかも長期間ペースト状態で保管される合成樹脂エマルション系下地調整剤にも充分使用できる。
【0026】
【実施例】
以下に具体的な実施例をあげて説明する。
1.配合実施例
次の表1に示す重量部で下地調整剤を作成した。尚、表中のコルク粉末はカサ比重が0.1である。中空バルーンは、シラスバルーンであり、カサ比重が0.2である。固着剤としては、ポリビニルアルコールに代表されるビニル系樹脂を用いた。添加剤としては、増粘剤、分散剤、防カビ剤の総量を指す。水は、混合水量である。
【0027】
【表1】
【0028】
2.評価結果
表1で得られた試作品の評価を行った。その結果を次の表2に示す。尚、表中、溝埋め疑似硬化時間は、巾8mm、深さ5mmのV溝に塗布し、指で軽く押さえた際に硬くなるまでの時間(2回目の塗布作業へ移行できるまでの時間)を指す。肉ヤセは、巾8mm、深さ5mmのV溝に塗布乾燥した後、ダイヤルゲージにてくぼみを測定した。
【0029】
研磨性は、#80のサンドペーパーで研磨し、次のA〜Dの評価を行った。
A…研磨性がよい
B…研磨性はややよい
C…普通
D…固くて研磨が困難
【0030】
吸水性は、乾燥面に水滴を落とし、吸収されるまでの時間を測定し、次のA,C,Dの評価を行った。
A…吸い込み性が緩やか(10分間以上水滴が残る)
C…普通(5分以内に吸収される)
D…激しい(着けた瞬間に吸収される)
【0031】
壁紙の乾燥性は、ビニル壁紙を貼り付けた後の乾燥時間を測定し、次のA〜Cの評価を行った。
A…2時間以内に接着
B…4時間以内に接着
C…4時間以上必要
【0032】
硬化物の固さは、乾燥硬化後の固さを観察し、次のA〜Cの評価を行った。
A…硬い
B…やや硬い(指で押しても凹まない)
C…柔らかい(指で押すと弾性があり、凹む)
【0033】
塗布性は、実際に下地材上に塗布し、次のA〜Cの評価を行った。
A…適度な粘調性を有し、塗工性がよい
B…普通
C…粘りが強く、塗工性が良くない
【0034】
ペーストの安定性は、次のA〜Cの評価を行った。
A…混練り後、4時間以上混練り時と同一なペースト状態である
B…混練り後、2時間以上混練り時と同一なペースト状態である
C…混練り後、2時間以内に水分が減少しかたくなったペースト状態である
【0035】
【表2】
【0036】
表2から判る通り、本実施例の下地調整剤は、焼石膏とコルク粉末を主成分とした充填剤と固着剤からなる反応硬化型下地調整剤、及び炭酸カルシウム又は二水石膏等の無機充填剤とコルク粉末を主成分とした充填剤と固着剤からなる乾燥硬化型下地調整剤に関するものであり、コルク粉末を配合することによる効果は、塗布後の疑似硬化が早く、しかも肉ヤセが少なく施工効率がよく、しかもサンダー性と壁紙の接着性は相反する性質にも関わらず、両者をマッチさせることができる画期的な下地調整剤が得られる。
【0037】
【発明の効果】
本発明は以上説明した通り、壁紙の接着性の向上と、施工能率の向上との相反する特性を共に解決する下地調整剤を得ることができるという効果がある。
【図面の簡単な説明】
【図1】本発明の充填剤であるコルク粉末の顕微鏡写真である。[0001]
BACKGROUND OF THE INVENTION
The present invention is, for example, a base adjustment that adjusts the surface of the base material by embedding and applying it to the surface or joints of the base material such as gypsum board, plywood, calcium silicate board, asbestos slate board, etc. It relates to the agent.
[0002]
[Prior art]
In recent years, dry construction methods using gypsum board, plywood, and the like have increased in interior construction of buildings. In addition, the mainstream of these finishes is to finish with wallpaper or painting, and for this reason, the use of a surface preparation agent is increasing. Such a base preparation agent is a material for filling and smoothing joints such as gypsum board and plywood, and increasing the filling efficiency leads to improvement in construction efficiency.
[0003]
For this reason, since the middle of the Showa 50s, synthetic resin gypsum patties (hereinafter referred to as powder patties) mainly composed of gypsum have become mainstream from synthetic resin emulsion patties (hereinafter referred to as bun patties). In the 1960s, light weight products using inorganic hollow balloons (shirasu balloons) were produced and sold, and now light weight products are mainstream.
[0004]
However, air pollution in newly built properties has been highlighted since around 1996, and the problem of industrial waste has become a social problem since around 1998. In addition, due to the issue of global warming, it has become necessary to examine materials and methods that reduce the total environmental impact.
[0005]
This is due to further improvements in the airtightness and thermal insulation of buildings, and the diversification of interior materials such as wallpaper, and the number of processed paper wallpaper is gradually increasing. As a result, most of the previous wallpaper was made of vinyl chloride, and its thickness was 0.4 to 0.7 mm. However, in the case of wallpaper that does not use vinyl chloride in recent years, it becomes as thin as 0.1 to 0.3 mm. Yes.
[0006]
For this reason, more smoothness is required for the base preparation, and sandpaper is often used for polishing, resulting in a decrease in construction efficiency and a decrease in wallpaper adhesion. Furthermore, interior demand is changing, renovations are increasing, and construction methods are changing.
[0007]
[Problems to be solved by the invention]
By the way, the necessary condition of the base material adjusting agent for wallpaper is that the wallpaper adheres, and the improvement of the adhesiveness is in the selection of the fixing agent having a high binder effect and the increase in the blending amount. However, the improvement in construction efficiency is a decrease in the number of coatings (decrease in meatiness) and an improvement in the sander property, and an increase in the amount of fixing agent generally has a contradictory relationship with an improvement in the workability.
[0008]
Then, an object of this invention is to obtain the base preparation agent which solves the characteristic which conflicts with the improvement of the adhesiveness of wallpaper, and the improvement of construction efficiency.
[0009]
[Means for Solving the Problems]
The base preparation according to the first aspect of the present invention is composed of a filler mainly composed of calcined gypsum and cork powder, and a fixing agent .
[0011]
The ground preparation according to the invention described in claim 2 is composed of an inorganic filler selected from the group including calcium carbonate or dihydrate gypsum, a filler mainly composed of cork powder, and a fixing agent. It is what.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, since the base preparation comprising a fixing agent and a filler contains cork powder as a filler, it solves both of the conflicting properties of improved wallpaper adhesion and construction efficiency. Can be obtained.
[0013]
As a more specific aspect of the present invention, there are a reaction curable base conditioner and a dry curable base conditioner. The reaction-curing base preparation in the present invention is composed of a filler mainly composed of calcined gypsum and cork powder, and a fixing agent. The dry-curing base preparation in the present invention comprises an inorganic filler selected from the group including calcium carbonate and dihydrate gypsum, a filler mainly composed of cork powder, and a fixing agent.
[0014]
Cork is the surface bark of cork oak, consisting of small cells that are non-fibrous and closely packed in a tetrahedron. For this reason, the powder obtained by pulverizing cork also retains the properties of cork and has properties as a lightweight filler. Moreover, the cork powder used in the present invention has weak hydrophobicity. This is considered to be because 30% of the fatty acid is contained, and it is considered that this property reduces the wettability of the fixing agent to cork.
[0015]
Due to the properties of the cork powder, the base preparation of the present invention has an effect of not reducing the sander performance even when the amount of the fixing agent as an adhesive component is increased. In addition, the coating properties when applying the base conditioning agent to the base also reduce the viscosity and improve the coating properties compared with hydrophilic fillers such as gypsum and calcium carbonate. Addition of a quality agent becomes unnecessary, and it has the feature that adhesiveness also improves.
[0016]
In addition, as other effects, there is an improvement in pseudo-curability associated with the transfer of moisture to the base and a cohesive action between filler particles at that time, reducing meat fouling, preventing skin separation, etc. Is recognized.
[0017]
This performance is affected by the particle diameter of the cork powder, and the larger the diameter, the higher the filling effect. However, the limit is about 500 μm from the viewpoint of texture and streaking, and the surface preparation agent for finishing must be 150 μm or less. Pulling occurs.
[0018]
FIG. 1 is a photomicrograph of cork powder which is a filler of the present invention. As shown in the figure, the major axis of cork cells is 25 to 50 μ, and therefore, particles with a particle size of 10 μ or less are powders of crushed cells or outer epidermis, and those with a particle size of 20 to 150 μ. Suitable for ground conditioner.
[0019]
Next is the amount of cork powder. In the case of a reaction-curing base preparation using calcined gypsum, the amount of gypsum is 35% or more in terms of the mass ratio in order to cure the paste by the water-curing reaction of calcined gypsum. It is desirable that it is 40% or more.
[0020]
Therefore, in the reaction curing type of the surface preparation agent, the amount of the cork powder blended is 60% by weight, and the weight is reduced by adding 10% of the weight of 0.08. (50% lighter product).
[0021]
As for the specific gravity of the cork powder, there are powders having a specific gravity of 0.2 or more. However, the weight reduction is limited to 30% from the viewpoint of weight reduction. The condition is 1 or less. Some resin-based hollow balloons with synthetic resin as the core have a bulk specific gravity of 0.05 or less, but they are too light and difficult to handle, and are suitable for paste-based foundation conditioners. It is not suitable for a regulator.
[0022]
In addition, in the dry-curing type surface preparation agent, the bulk ratio of the cork powder may be blended by 60% or more. As the blending amount of the cork powder increases, the use of a high-viscosity sticking agent results in an appropriate viscosity. Although a good coating property can be obtained, there arises a problem that the kneading property with water is lowered due to the hydrophobic performance and low specific gravity of cork, and 80% is the limit in the bulk ratio.
[0023]
Moreover, when the amount of the cork powder blended is 10% or less, the reaction curing type base conditioner and the dry curing type base conditioner have some improvement in applicability, but the effect of preventing meat freckles. However, it is necessary to use a hollow balloon such as a shirasu balloon, a filler such as vermiculite, and an aggregate. However, lightweight aggregates such as hollow balloons and vermiculite are inorganic fillers and have no hydrophobic effect, so it is necessary to add fatty acid additives and other modifiers. More effective.
[0024]
In view of the above, what is obtained by blending 40-60% of cork powder having a particle size of 20-150 μm with a bulk ratio has excellent performance in filling performance (meat rust prevention effect) and sander performance as well as coating properties. It is a ground conditioner having good construction efficiency, and a sufficient amount of fixing agent is blended, so that a ground conditioner having excellent wallpaper adhesion can be obtained.
[0025]
In addition, cork powder has an independent cellular foam structure with no communication pores. This property, in addition to the powdery base preparation, has a high share during production and is a synthetic material that can be stored in a paste state for a long time. It can also be used satisfactorily as a resin emulsion base preparation.
[0026]
【Example】
Hereinafter, specific examples will be described.
1. Formulation Example An undercoat conditioning agent was prepared in parts by weight shown in Table 1 below. The cork powder in the table has a specific gravity of 0.1. The hollow balloon is a shirasu balloon and has a specific gravity of 0.2. As the fixing agent, a vinyl resin typified by polyvinyl alcohol was used. As an additive, the total amount of a thickener, a dispersing agent, and an antifungal agent is pointed out. Water is the amount of mixed water.
[0027]
[Table 1]
[0028]
2. Evaluation results The prototypes obtained in Table 1 were evaluated. The results are shown in Table 2 below. In the table, the groove-filling pseudo-curing time is the time until it hardens when applied to a V-groove with a width of 8 mm and a depth of 5 mm and lightly pressed with a finger (time until it can move to the second coating operation) Point to. After applying and drying on the V groove having a width of 8 mm and a depth of 5 mm, the meat sample was measured for indentation with a dial gauge.
[0029]
Abrasiveness was polished with # 80 sandpaper, and the following A to D were evaluated.
A ... Good polishability B ... Abrasive good somewhat C ... Normal D ... Hard and difficult to polish [0030]
For the water absorption, the following A, C, and D were evaluated by dropping water droplets on the dry surface and measuring the time until absorption.
A ... Slow absorption (water drops remain for more than 10 minutes)
C ... Normal (absorbed within 5 minutes)
D ... intense (absorbed at the moment of wearing)
[0031]
The drying property of the wallpaper was measured by the drying time after the vinyl wallpaper was pasted, and the following A to C were evaluated.
A ... Adhesion within 2 hours B ... Adhesion within 4 hours C ... Need more than 4 hours [0032]
The hardness of the cured product was evaluated by the following AC after observing the hardness after dry curing.
A ... Hard B ... Slightly hard (does not dent when pressed with a finger)
C ... Soft (it is elastic and dents when pressed with a finger)
[0033]
The applicability was actually applied on a base material, and the following A to C were evaluated.
A: Appropriate viscosity, good coatability B: Normal C ... Strong stickiness, poor coatability [0034]
The stability of the paste was evaluated by the following AC.
A: After kneading, the same paste state as when kneaded for 4 hours or more B: After kneading, the same paste state as when kneading for 2 hours or more C: After 2 hours after kneading It is a paste state that has become difficult to decrease.
[Table 2]
[0036]
As can be seen from Table 2, the base preparation of this example is a reaction hardening type base preparation composed of a filler and a fixing agent mainly composed of calcined gypsum and cork powder, and inorganic filler such as calcium carbonate or dihydrate gypsum. This is related to a dry-curing base preparation composed of a filler and a sticking agent mainly composed of an agent and a cork powder. The effect of blending the cork powder is that pseudo-curing after application is fast and there is little meat rust. Despite the fact that the construction efficiency is good, and the sander property and the adhesiveness of the wallpaper are contradictory properties, an epoch-making base preparation agent that can match the two is obtained.
[0037]
【The invention's effect】
As described above, the present invention has an effect that it is possible to obtain a base conditioner that solves both the contradictory properties of improvement in wallpaper adhesion and improvement in construction efficiency.
[Brief description of the drawings]
FIG. 1 is a photomicrograph of cork powder that is a filler of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000313421A JP4789316B2 (en) | 2000-10-13 | 2000-10-13 | Ground conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000313421A JP4789316B2 (en) | 2000-10-13 | 2000-10-13 | Ground conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002121426A JP2002121426A (en) | 2002-04-23 |
| JP4789316B2 true JP4789316B2 (en) | 2011-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000313421A Expired - Fee Related JP4789316B2 (en) | 2000-10-13 | 2000-10-13 | Ground conditioner |
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| Country | Link |
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| JP (1) | JP4789316B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT108406A (en) * | 2015-04-27 | 2016-10-27 | Categoria & Rigor - Unipessoal Lda | STRETCHED CARTONED PLATE FOR TABLET CONSTRUCTION |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919732A (en) * | 1982-07-22 | 1984-02-01 | Matsushita Electric Ind Co Ltd | Friction member |
| JP2819335B2 (en) * | 1990-02-07 | 1998-10-30 | ヤヨイ化学工業株式会社 | Lightweight coating material |
| JP2607327B2 (en) * | 1991-12-20 | 1997-05-07 | 住友ゴム工業株式会社 | Elastic floor structure |
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2000
- 2000-10-13 JP JP2000313421A patent/JP4789316B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| JP2002121426A (en) | 2002-04-23 |
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