JPH022915B2 - - Google Patents
Info
- Publication number
- JPH022915B2 JPH022915B2 JP57196716A JP19671682A JPH022915B2 JP H022915 B2 JPH022915 B2 JP H022915B2 JP 57196716 A JP57196716 A JP 57196716A JP 19671682 A JP19671682 A JP 19671682A JP H022915 B2 JPH022915 B2 JP H022915B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic pulp
- admixture
- pulp
- aqueous viscous
- aqueous
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims description 24
- 239000011256 inorganic filler Substances 0.000 claims description 15
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 15
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 14
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 4
- 150000004679 hydroxides Chemical class 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 150000003568 thioethers Chemical class 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical group [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims 1
- 208000022133 pulmonary valve agenesis Diseases 0.000 description 11
- 238000002156 mixing Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
本発明は、タレ防止、鏝離れ改良等のため水性
粘性液体に混入する混和材に関する。
合成パルプは、モルタル等の水性の粘性液体に
混入して、ひび割れ防止、タレ防止あるいは鏝離
れ改良を付与するのに効果がある。このような粘
性液体に混入する合成パルプは十分乾燥し、解繊
状態になるまで粗粉砕して使用することが望まし
いが、この様な状態の合成パルプは嵩比重が非常
に小さい為、ブレンド作業に手間どるという問題
が生じる。すなわち、混入しようとする粘性液体
の表面に上述の様な状態の合成パルプがボール状
になつて浮くという現象、あるいは大量の空気を
抱いたまま混入され、物性低下、表面状態の悪化
等の原因となる気泡をまき散らすという現象が起
きる。このまき散らされた気泡のうち、比較的小
さいものは合成パルプ、あるいは他の成分の影響
を受けてなかなか浮上して表面に出てゆかず、そ
の結果、相分離を引き起こす要因ともなる。
このような問題を解決する手段として、本出願
人は既に特開昭55−102628号として、合成パルプ
に無機フイラーを配合する方法を提案した。この
方法は、粘性液体に合成パルプを配合するに際
し、予め合成パルプを無機フイラーとブレンドし
てなる合成パルプ組成物を用いることにより、撹
拌して気泡の混入を防いだ粘性液体中に、合成パ
ルプを均一に分散させることができるようにした
ものである。本出願人は、更に研究を進めた結
果、撹拌操作を行わなくとも、水性粘性液体中に
分散できる合成パルプを見出し、本発明に到達し
た。
すなわち、本発明はポリビニルアルコールを含
む合成パルプに、酸化物、水酸化物および硫化物
からなる群から選ばれる１種以上の固体塩基の無
機フイラーを１乃至50重量％混合してなることを
特徴とする水性粘性液体用混和材である。
本発明における合成パルプは、合成高分子化合
物をパルプ状にしたものであり、ポリオレフイン
パルプ、アクリロニトリルパルプ、ポリエステル
パルプ、ポリアミドパルプなどがあげられるが、
ポリエチレン、ポリプロピレンなどのポリオレフ
インパルプが好ましく使用される。これらは通常
約0.1〜５mmの短繊維状である。
前記合成パルプには、ポリビニルアルコール
（以下PVA）が含まれている。PVAを合成パル
プに付与するには、たとえばポリオレフインパル
プの場合、ポリオレフインの融解物をPVA水溶
液下に混合し、撹拌して実質的に均一な懸濁物を
得、これを急激な降圧状態に曝しフラツシユ紡糸
することにより得ることができる。更に具体的に
は、PVAの0.03乃至５重量％水性混合物にポリ
オレフイン、たとえばポリエチレンまたはポリプ
ロピレンを５乃至15重量％低級炭化水素、好まし
くはヘキサンの溶液として135乃至160℃において
撹拌下に導入して均一に分散させる。この場合の
ポリオレフイン溶液対PVA水溶液の重量比は好
ましくは0.5乃至２である。次いでこの分散液を
常圧付近の環境に急激に曝して脱液し、PVAを
付与した合成パルプを得る。また別には合成パル
プ状にしたのち、PVA溶液を散布付着させても
よい。このようにして得られる合成パルプは、
0.1乃至10重量％のPVAが含まれる。
このようなPVA処理を受けた合成パルプは、
本来親水性を示し水性粘性液中での分散が良好で
あるはずだが、一旦乾燥状態に曝されると親水性
が低下し、水性粘性液中での分散が困難となる。
このとき酸化物、水酸化物および硫化物からなる
群から選ばれる１種以上の固体塩基の無機フイラ
ーを混合すると、乾燥状態になつても親水性を保
持し続けて、水性粘性液中での分散が良好とな
る。同じ無機フイラーでも固体酸の無機フイラ
ー、たとえばCaCO3、CaSO4、ベントナイト、
タルク、カオリンクレー、ケイソウ土などは、こ
のような効果を示さない。
上記固体塩機の無機フイラーとしては、たとえ
ばCaO、ZnO、BeO、MgO、Mg（OH）2、SiO2、
ZnS、などが例示できる。この無機フイラーは、
１乃至50重量％好ましくは５乃至20重量％配合す
る。この範囲をはずれると改良効果がみられなか
つたり、場合によつては配合能率をかえつて低下
させる場合もある。
合成パルプと無機フイラーを混合する方法とし
ては、公知の種々の方法が採用され、たとえば予
め乾燥した合成パルプと無機フイラーをブレンド
する方法、合成パルプの水スリラー中に無機フイ
ラーを添加し、混合撹拌した後に脱水・乾燥する
方法が例示できる。
これらPVA及び無機フイラーを含む合成パル
プを混和する粘性液体は、高粘度の液状、ペース
ト状の水性のものをいい、通常合成パルプ配合時
における粘度が100cp以上、例えば100ないし
10000cp程度、とくに200ないし2000cp程度のも
のが好適に使用される。これら水性粘性液体は勿
論単一化合物である必要はなく、２種以上の液体
混合物であつてもよく、さらに各種添加剤が溶解
あるいは分散しているものであつてもよい。これ
らの代表的なものは各種水性塗料、セメント、コ
ンクリート、プラスター、モルタルなどである。
本発明によれば、水性液体中への合成パルプの
混入を迅速に行うことができ、また均一な分散物
を得ることができる。
実施例 １
乾燥高密度ポリエチレンからなる合成パルプ
（平均繊維長１mm、PVA含量２％）とMgOをド
ライブレンドしたもの５ｇを水面上に静置し、水
没するまでの時間を測定した。
結果を第１表に示す。
The present invention relates to an admixture that is mixed into an aqueous viscous liquid to prevent sagging, improve trowel release, and the like. Synthetic pulp is effective when mixed into an aqueous viscous liquid such as mortar to prevent cracking, sag, or improve trowel release. It is desirable to dry the synthetic pulp mixed in such a viscous liquid and coarsely crush it until it becomes a defibrated state. The problem arises that it takes a lot of time. In other words, the synthetic pulp in the above-mentioned state forms a ball and floats on the surface of the viscous liquid to be mixed, or it is mixed with a large amount of air, which causes a decrease in physical properties and deterioration of the surface condition. A phenomenon occurs in which air bubbles are scattered. Among these scattered air bubbles, relatively small ones are affected by the synthetic pulp or other components and do not easily float to the surface, resulting in phase separation. As a means to solve these problems, the applicant of the present invention has already proposed a method of blending an inorganic filler into synthetic pulp in JP-A-55-102628. In this method, when blending synthetic pulp into a viscous liquid, by using a synthetic pulp composition made by blending synthetic pulp with an inorganic filler in advance, the synthetic pulp is mixed into a viscous liquid that has been stirred to prevent air bubbles from being mixed in. This allows for uniform dispersion. As a result of further research, the present applicant discovered a synthetic pulp that can be dispersed in an aqueous viscous liquid without stirring, and has arrived at the present invention. That is, the present invention is characterized in that the synthetic pulp containing polyvinyl alcohol is mixed with 1 to 50% by weight of one or more solid base inorganic fillers selected from the group consisting of oxides, hydroxides, and sulfides. This is an admixture for aqueous viscous liquids. The synthetic pulp in the present invention is a pulp made from a synthetic polymer compound, and includes polyolefin-in pulp, acrylonitrile pulp, polyester pulp, polyamide pulp, etc.
Polyolefin-in pulps such as polyethylene and polypropylene are preferably used. These are usually short fibers of about 0.1 to 5 mm. The synthetic pulp contains polyvinyl alcohol (hereinafter referred to as PVA). To apply PVA to a synthetic pulp, for example, in the case of polyolefin-in-pulp, the polyolefin melt is mixed under an aqueous PVA solution, stirred to obtain a substantially homogeneous suspension, and subjected to rapid pressure reduction. It can be obtained by flash spinning. More specifically, a polyolefin, such as polyethylene or polypropylene, is introduced into a 0.03 to 5% by weight aqueous mixture of PVA as a solution in 5 to 15% by weight of a lower hydrocarbon, preferably hexane, at 135 to 160° C. under stirring to form a homogeneous mixture. to be dispersed. In this case, the weight ratio of the polyolefin solution to the aqueous PVA solution is preferably 0.5 to 2. Next, this dispersion liquid is rapidly exposed to an environment near normal pressure to remove the liquid, thereby obtaining a PVA-added synthetic pulp. Alternatively, after forming into a synthetic pulp, a PVA solution may be sprayed onto the material. The synthetic pulp obtained in this way is
Contains 0.1 to 10% by weight PVA. Synthetic pulp that has undergone such PVA treatment is
Although it should originally be hydrophilic and disperse well in an aqueous viscous liquid, once exposed to dry conditions, the hydrophilicity decreases and dispersion in an aqueous viscous liquid becomes difficult.
At this time, if one or more solid base inorganic fillers selected from the group consisting of oxides, hydroxides, and sulfides are mixed, it will continue to maintain its hydrophilicity even in a dry state, and will retain its hydrophilic properties in aqueous viscous liquids. Good dispersion. The same inorganic filler is also a solid acid inorganic filler, such as CaCO 3 , CaSO 4 , bentonite,
Talc, kaolin clay, diatomaceous earth, etc. do not exhibit this effect. Examples of the inorganic filler for the solid salt machine include CaO, ZnO, BeO, MgO, Mg(OH) 2 , SiO 2 ,
Examples include ZnS. This inorganic filler is
It is blended in an amount of 1 to 50% by weight, preferably 5 to 20% by weight. If it is outside this range, no improvement effect may be observed, or in some cases, the blending efficiency may even be reduced. Various known methods are used to mix synthetic pulp and inorganic filler, such as blending pre-dried synthetic pulp and inorganic filler, adding inorganic filler to a synthetic pulp water chiller, and mixing and stirring. An example is a method of dehydrating and drying after drying. The viscous liquid with which these synthetic pulps containing PVA and inorganic fillers are mixed is a highly viscous liquid or paste-like aqueous liquid, and usually has a viscosity of 100 cp or more when compounded with synthetic pulp, for example 100 cp or more.
About 10,000 cp, especially about 200 to 2,000 cp is preferably used. Of course, these aqueous viscous liquids do not need to be a single compound, but may be a mixture of two or more types, and may also have various additives dissolved or dispersed therein. Typical examples of these include various water-based paints, cement, concrete, plaster, and mortar. According to the present invention, synthetic pulp can be rapidly mixed into an aqueous liquid, and a uniform dispersion can be obtained. Example 1 5 g of a dry blend of synthetic pulp made of dry high-density polyethylene (average fiber length: 1 mm, PVA content: 2%) and MgO was placed on the water surface, and the time until it submerged was measured. The results are shown in Table 1.
【表】
実施例２〜４及び比較例１〜６
第２表に示す無機フイラーを10重量％混合する
以外は実施例１と同様に行つた。結果を第２表に
示す。[Table] Examples 2 to 4 and Comparative Examples 1 to 6 The same procedure as in Example 1 was carried out except that 10% by weight of the inorganic filler shown in Table 2 was mixed. The results are shown in Table 2.
【表】【table】
Claims (1)
酸化物、水酸化物および硫化物からなる群から選
ばれる１種以上の固体塩基の無機フイラーを１乃
至50重量％混合してなることを特徴とする水性粘
性液体用混和材。 ２ 合成パルプがポリオレフインパルプである特
許請求の範囲第１項記載の水性粘性液体用混和
材。 ３ 無機フイラーが酸化マグネシウムである特許
請求の範囲第１項または第２項記載の水性粘性液
体用混和材。 ４ ポリビニルアルコールを0.1乃至10重量％含
む特許請求の範囲第１項乃至第３項いずれかに記
載の水性粘性液体用混和材。 ５ 水性粘性液体がモルタルである特許請求の範
囲第１項乃至第４項いずれかに記載の水性粘性液
体用混和材。[Claims] 1. Synthetic pulp containing polyvinyl alcohol,
1. An admixture for aqueous viscous liquids, characterized in that the admixture contains 1 to 50% by weight of one or more solid base inorganic fillers selected from the group consisting of oxides, hydroxides, and sulfides. 2. The admixture for an aqueous viscous liquid according to claim 1, wherein the synthetic pulp is a polyolefin-in pulp. 3. The admixture for aqueous viscous liquids according to claim 1 or 2, wherein the inorganic filler is magnesium oxide. 4. The admixture for aqueous viscous liquids according to any one of claims 1 to 3, which contains 0.1 to 10% by weight of polyvinyl alcohol. 5. The admixture for an aqueous viscous liquid according to any one of claims 1 to 4, wherein the aqueous viscous liquid is mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19671682A JPS5986680A (en) | 1982-11-11 | 1982-11-11 | Admixture for water-base viscous liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19671682A JPS5986680A (en) | 1982-11-11 | 1982-11-11 | Admixture for water-base viscous liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5986680A JPS5986680A (en) | 1984-05-18 |
| JPH022915B2 true JPH022915B2 (en) | 1990-01-19 |
Family
ID=16362400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19671682A Granted JPS5986680A (en) | 1982-11-11 | 1982-11-11 | Admixture for water-base viscous liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5986680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420534U (en) * | 1990-06-09 | 1992-02-20 | ||
| JPH0424921U (en) * | 1990-06-22 | 1992-02-28 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52141851A (en) * | 1974-03-15 | 1977-11-26 | Monsanto Co | Process for manufacturing polymers reinforced with fiber |
| JPS5586822A (en) * | 1978-12-26 | 1980-07-01 | Mitsui Petrochem Ind Ltd | Blending of synthetic pulp |
| JPS55102628A (en) * | 1979-01-29 | 1980-08-06 | Mitsui Petrochem Ind Ltd | Compounding of synthetic pulp |
-
1982
- 1982-11-11 JP JP19671682A patent/JPS5986680A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52141851A (en) * | 1974-03-15 | 1977-11-26 | Monsanto Co | Process for manufacturing polymers reinforced with fiber |
| JPS5586822A (en) * | 1978-12-26 | 1980-07-01 | Mitsui Petrochem Ind Ltd | Blending of synthetic pulp |
| JPS55102628A (en) * | 1979-01-29 | 1980-08-06 | Mitsui Petrochem Ind Ltd | Compounding of synthetic pulp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420534U (en) * | 1990-06-09 | 1992-02-20 | ||
| JPH0424921U (en) * | 1990-06-22 | 1992-02-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5986680A (en) | 1984-05-18 |
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