JPS61123674A - Flaky zinc powder composition - Google Patents
Flaky zinc powder compositionInfo
- Publication number
- JPS61123674A JPS61123674A JP59244356A JP24435684A JPS61123674A JP S61123674 A JPS61123674 A JP S61123674A JP 59244356 A JP59244356 A JP 59244356A JP 24435684 A JP24435684 A JP 24435684A JP S61123674 A JPS61123674 A JP S61123674A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- flaky
- zinc powder
- powder
- ultrafine
- 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.)
- Granted
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000000203 mixture Substances 0.000 title claims abstract description 34
- 239000011701 zinc Substances 0.000 claims abstract description 54
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 52
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 14
- 239000000194 fatty acid Substances 0.000 claims abstract description 14
- 229930195729 fatty acid Natural products 0.000 claims abstract description 14
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 230000000737 periodic effect Effects 0.000 claims abstract description 5
- 239000011164 primary particle Substances 0.000 claims abstract description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract 4
- 150000004706 metal oxides Chemical class 0.000 claims abstract 4
- 229910052751 metal Chemical class 0.000 claims description 9
- 239000002184 metal Chemical class 0.000 claims description 9
- 239000002245 particle Substances 0.000 abstract description 23
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 abstract description 15
- 238000000576 coating method Methods 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 abstract description 13
- 238000003860 storage Methods 0.000 abstract description 8
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 29
- 238000000227 grinding Methods 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 230000002776 aggregation Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 235000021355 Stearic acid Nutrition 0.000 description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 10
- 239000008117 stearic acid Substances 0.000 description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 7
- 238000005054 agglomeration Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 5
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229940008126 aerosol Drugs 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000005690 diesters Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明はフレーク状亜鉛粉末組成物に関し、更に詳しく
は塗料用として好適な亜鉛又は亜鉛基合金のフレーク状
粉末組成物に関する。DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a flaky zinc powder composition, and more particularly to a flaky powder composition of zinc or zinc-based alloy suitable for use in coatings.
「従来の技術」
近年、鉄鋼の防錆用に有機系、無機系のジンクリ、チ（
インドと称される亜鉛末塗料が多用されているつこれら
の塗料に使用される亜鉛末原料は。``Conventional technology'' In recent years, organic and inorganic zinc and chi(
In India, zinc dust paints are widely used.The zinc dust raw materials used in these paints are.
一般に蒸留法で得られる平均粒径、２〜１０μの球状亜
鉛末である。It is generally a spherical zinc powder with an average particle size of 2 to 10 microns obtained by a distillation method.
ところが、この球状亜鉛末忙は、一般に以下に述べる欠
点がある。すなわち、比重が約７と大きいのに球状で抵
抗が小さいため、貯！中の端内あるいは作業中に沈降し
てしまうこと、及び球状であるが故に表面積が小さく、
充分な防錆力を得るには粒子が互いに接触する程密に充
填しなければならず、必然的に塗膜中の亜鉛濃度は高く
せざるを得ないことなどである。この結果、塗膜強度の
問題、あるいは厚膜に塗装された場合の塗膜のワしくク
ラック）、溶接、溶断不良、あるいはそれらの作業時の
亜鉛ヒユームによる労働衛生上の問題点があった。However, this spherical zinc dust generally has the following drawbacks. In other words, although the specific gravity is high at about 7, it is spherical and has low resistance, so it can be stored! It may settle inside the inner edge or during work, and because it is spherical, the surface area is small.
In order to obtain sufficient rust-preventing power, the particles must be packed so densely that they are in contact with each other, and the zinc concentration in the coating film must necessarily be high. As a result, there were problems with the strength of the paint film (or cracks in the paint film when a thick film was applied), poor welding and fusing, and occupational health problems due to zinc fume during these operations.
これらの問題点を解決、改善するため塗料用亜鉛末をフ
レーク化する事は従来よ〕知られておシ。In order to solve and improve these problems, it has been known for a long time to turn zinc powder for paint into flakes.
各種文献に発表されている。すなわち、球状亜鉛末を表
面積の大きいフレーク状亜鉛に代えるととにより、亜鉛
粒子の互いの接触が密になるため、亜鉛未使用量を大幅
に低減することが可能になり。Published in various literature. That is, by replacing the spherical zinc powder with flaky zinc having a large surface area, the zinc particles come into close contact with each other, making it possible to significantly reduce the amount of unused zinc.
上記の問題解決に有効な手段とされている。It is considered to be an effective means to solve the above problems.
しかしながら、フレーク状亜鉛を用いた亜鉛末塗料は、
−膜化されてないのが現状である。その理由は、高価格
となる点の他に以下の制約を受けるためである。すなわ
ち、従来の亜鉛フレークは、充分にフレーク化するため
忙は、ステアリン酸。However, zinc dust paint using flaky zinc is
-Currently, it is not formed into a film. The reason for this is that in addition to the high price, the following restrictions apply. In other words, conventional zinc flakes require sufficient amount of stearic acid to flake.
オレイン酸等の高級脂肪酸および／または、これ等の亜
鉛塩、アルミニウム塩等の金属塩を有機系粉砕助剤とし
て、１．５〜５チ重量％の範囲で添加するため、得られ
た亜鉛フレークは、これらの粉砕助剤残留物で表面がコ
ーティングされており使用に際しては大幅な制約を受け
る点にある。即ち、これらの亜鉛フレーク粉末を用いた
亜鉛末塗料は、粉末表面が高級脂肪酸で覆われているた
め、亜鉛系金属の本来有する機能が充分発揮されず、防
錆力が劣シ、且つ白錆の発生が著しい等の欠点がある。Since higher fatty acids such as oleic acid and/or metal salts thereof such as zinc salts and aluminum salts are added as organic grinding aids in the range of 1.5 to 5% by weight, the resulting zinc flakes The surface of these grinding aids is coated with the residue of these grinding aids, and their use is subject to significant restrictions. In other words, since the powder surface of zinc powder paints using these zinc flake powders is covered with higher fatty acids, the inherent functions of zinc-based metals cannot be fully demonstrated, and the rust prevention ability is poor and white rust occurs. There are disadvantages such as significant occurrence of
そこで本発明者らは、亜鉛フレークに付随する有機系粉
砕助剤の悪影響を排除して、亜鉛フレーク本来の優れた
塗料用機能を発現させる方策について鋭意検討した結果
、有機系粉砕助剤の含量をある限定範囲内に抑えること
によって、上記問題点が解消されることを見出した。こ
れＫついては。Therefore, the inventors of the present invention have conducted intensive studies on measures to eliminate the negative effects of organic grinding aids accompanying zinc flakes and to bring out the excellent coating functions inherent to zinc flakes. It has been found that the above-mentioned problems can be solved by keeping the value within a certain limited range. Regarding this K.
既に特願昭和５８年１９５３５２号を出願している。A patent application No. 195352 of 1982 has already been filed.
「発明が解決しようとする問題点」
本発明は、上記発明と関連し、さらに諸性能、特に貯蔵
安定性、白錆発生性を抑制したフレ、−り状亜鉛及び亜
鉛基合金粉末組成物に関するものである。"Problems to be Solved by the Invention" The present invention is related to the above-mentioned invention, and further relates to a flaky, lily-like zinc and zinc-based alloy powder composition that has various properties, particularly storage stability, and suppresses the occurrence of white rust. It is something.
「問題点を解決するための手段」
すなわち１本発明は高級脂肪酸ならびに高級脂肪酸の周
期律表１１Ａ、ＩＩＢ及びＩＡＩＩの金属の塩の含量が
０．１〜０．５重量％であシ、かつ超微粉シリカ、超微
粉アルミ＋および／または超微粉酸化チタンの含量が０
．１〜５．０重量％である亜鉛又は亜鉛基合金のフレー
ク状粉末からなることを特徴とするフレーク状亜鉛粉末
組成物に関する。``Means for Solving the Problems'' That is, 1. The present invention provides a method in which the content of higher fatty acids and salts of metals of 11A, IIB and IAII of the periodic table of higher fatty acids is 0.1 to 0.5% by weight, and The content of ultrafine silica, ultrafine aluminum + and/or ultrafine titanium oxide is 0.
．． The present invention relates to a flaky zinc powder composition comprising 1 to 5.0% by weight of zinc or zinc-based alloy flaky powder.
以下、本発明を具体的に説明する。The present invention will be explained in detail below.
本発明のフレーク状亜鉛粉末組成物は、高級脂肪酸およ
び／またはその塩と超微粉シリカ、超微粉アルミナおよ
び／または超微粉酸化チタンを同時に含有し、互いに補
完関係にあることを特徴とする。即ち、上記のような有
機系粉砕助剤或は無機系粉砕助剤を上記範囲内で単独に
用いた場合。The flaky zinc powder composition of the present invention is characterized in that it simultaneously contains a higher fatty acid and/or its salt, ultrafine silica, ultrafine alumina, and/or ultrafine titanium oxide, and has a mutually complementary relationship. That is, when the above organic grinding aid or inorganic grinding aid is used alone within the above range.
いずれの場合も充分フレーク化されなく、亜鉛粒子の凝
集が起るのに対し、併用してはじめて満足ゆく亜鉛フレ
ークが得られ、又、塗料化した場合も優れた性能を発揮
する。In either case, the zinc particles are not sufficiently flaked and agglomeration occurs, but satisfactory zinc flakes can be obtained only when used in combination, and also exhibit excellent performance when made into a paint.
本発明に用いられる超微粉シリカ、超微粉アルミナおよ
び超微粉酸化チタンはそれぞれ単独で用いてもよく、又
併用も差しつかえない。凝集防止効果の点から亜鉛粒子
表面にこ゛れらの超微粉粉末を均一に分散付着させるこ
とが必要である。超微粉シリカ、超微粉アルミナ、超微
粉酸化チタンとしては、５０−以下の１次粒子の平均粒
子径を有するものが好ましい。５０ｍμを超えた粉末は
、充分な比表面積をもたないため、亜鉛粉末の表面を充
分に覆うことができず粉砕時に凝集等の原因になる。こ
れら超微粉粉末の添加量は、亜鉛粉末に対し０．１〜５
．Ｑ ｖｔ％である。０．１％以下の場合は、白錆防止
効果が低下し、助剤効果にも乏しい。他方、ｓ、 ０１
以上だと、白錆防止効果は向上するが亜鉛粒子表面を密
（覆い、亜鉛粒子間の金属接触を妨げ亜鉛末塗料の犠牲
防食作用を低下させる。The ultrafine silica, alumina, and titanium oxide used in the present invention may be used alone or in combination. From the viewpoint of preventing agglomeration, it is necessary to uniformly disperse and adhere these ultrafine powders to the surface of zinc particles. The ultrafine silica, alumina, and titanium oxide preferably have an average primary particle diameter of 50 or less. Powders with a particle diameter of more than 50 mμ do not have a sufficient specific surface area and cannot sufficiently cover the surface of the zinc powder, causing agglomeration during pulverization. The amount of these ultrafine powders added is 0.1 to 5
．． Q vt%. If it is less than 0.1%, the white rust prevention effect will be reduced and the auxiliary effect will be poor. On the other hand, s, 01
If this is the case, the anti-white rust effect will be improved, but the surface of the zinc particles will be densely covered (coated), preventing metal contact between the zinc particles and reducing the sacrificial anti-corrosion effect of the zinc dust paint.
さらに有機系粉砕助剤の効果を減少させるため、得られ
る亜鉛フレークの形状も悪くなシ、粉末の凝集によシ収
率も低下する。Furthermore, since the effect of the organic grinding aid is reduced, the shape of the resulting zinc flakes is poor and the yield is also reduced due to agglomeration of the powder.
本発明で使用される高級脂肪酸および／またはこれらの
高級脂肪酸の金属塩における高級脂肪酸とはステアリン
酸、オレイン酸、ラウリン酸等である。これら金属塩と
しては、Ｃａ塩、Ｚｎ塩、紅塩等の周期律表第１１Ａ族
（アルカリ出金属）、第■Ｂ族（亜鉛族）、第ＩＩＩＡ
族（アルミニウム族）からなる金属塩が好ましく使用さ
れる。これらの有機系粉砕助剤の添加量は、亜鉛粉末量
に対し０．１〜０．５ ｗｔチとする必要がある。０．
１ ｆｔ％以下の場合は、助剤効果に乏しく ０．５
ｖｔ％以上の場合は、亜鉛粒子表面を覆うため、亜鉛の
防食作用を低下させるからである。The higher fatty acids in the higher fatty acids and/or metal salts of these higher fatty acids used in the present invention include stearic acid, oleic acid, lauric acid, and the like. These metal salts include Ca salt, Zn salt, red salt, etc. of Group 11A (alkali metals) of the periodic table, Group IIB (zinc group), Group IIIA of the periodic table, etc.
Metal salts of the aluminum group (aluminum group) are preferably used. The amount of these organic grinding aids added needs to be 0.1 to 0.5 wt based on the amount of zinc powder. 0.
If it is less than 1 ft%, the auxiliary effect is poor and 0.5
This is because if it is more than vt%, the surface of the zinc particles is covered, thereby reducing the anticorrosion effect of zinc.
本発明の亜鉛粉末は塗料化の観点からフレーク状である
こと、およびそのサイズが重要な要素であろうすなわち
、フレークの一片は最大１００μ以下、平均厚み５μ以
下、平均長径１．５〜３０μでアスイクト比（平均長径
／厚み）は３以上の偏平状（片状物）であることが好ま
しい。すなわち、最大長さが１００μを超えると塗装時
忙スグレーガンの詰りの原因となり、且つ塗膜は平滑な
表面が得られない難点がある。又、亜鉛フレークの平均
厚みが５μを超え、平均長径が３０μを超え、且つアス
イクト比が３未満であると、フレーク°は充分な比表面
積を持つことができなくなり、防錆力、厚膜性等に対し
フレークの持つ特徴を発揮することが出来ない。さらに
、この場合にはエチルシリケート及びアルカリシリケー
トをビヒクルとした無機系シンクリッチペイントに使用
した場合、クラ、り膜厚の向上にも効果がない。The zinc powder of the present invention is in the form of flakes from the viewpoint of coating, and its size is an important factor. That is, a piece of flake has a maximum of 100 μm or less, an average thickness of 5 μm or less, and an average major axis of 1.5 to 30 μm. It is preferable that the asicto ratio (average major axis/thickness) is a flat shape (flaky material) of 3 or more. That is, if the maximum length exceeds 100 μm, it may cause clogging of the smog gun during painting, and it is difficult to obtain a smooth surface of the coating film. In addition, if the average thickness of the zinc flakes exceeds 5μ, the average major axis exceeds 30μ, and the asquick ratio is less than 3, the flakes will not have a sufficient specific surface area, resulting in poor rust prevention and thick film properties. It is not possible to exhibit the characteristics of flakes. Furthermore, in this case, when used in an inorganic sink-rich paint containing ethyl silicate or alkali silicate as a vehicle, it is not effective in improving cracking or film thickness.
好ましいフレークの形状としては、最大長さ５０μ以下
、平均厚み０．５〜２．０μ、平均長径２〜１５μ、ア
スイクト比５〜１５である。この条件を満たし、且つ有
機系及び無機系粉砕助剤量が先述の範囲内であれば、後
述の実施例で確認された如く、乾燥塗膜中の亜鉛含有量
が５０重量−以下でも、球状亜鉛末８０重量％以上の防
食性に充分匹適する。又、エチルシリケートをビヒクル
とした無機−系ジンクリッチ（インドに使用した場合、
一般の球状亜鉛末では、り２ツクの発生膜厚が５０μ以
下であるのに対し、上記条件を満足した本発明の亜鉛フ
レークを使用すると１５０μ以上を示す。Preferred flake shapes include a maximum length of 50 microns or less, an average thickness of 0.5 to 2.0 microns, an average major axis of 2 to 15 microns, and an aspirate ratio of 5 to 15. As long as this condition is met and the amounts of organic and inorganic grinding aids are within the above-mentioned range, even if the zinc content in the dried coating film is less than 50% by weight, it will be spherical, as confirmed in the examples below. Suitable for corrosion protection of 80% by weight or more of zinc powder. In addition, inorganic zinc rich with ethyl silicate as a vehicle (when used in India,
In general spherical zinc powder, the film thickness generated by the film is 50μ or less, whereas when the zinc flakes of the present invention satisfying the above conditions are used, the film thickness is 150μ or more.
又、上記条件は、亜鉛のフレークだけでなく、Ｚｎ−Ａ
ｔ−Ｍｇ等の亜鉛基合金のフレークにも充分適用される
。Moreover, the above conditions apply not only to zinc flakes but also to Zn-A
It is also fully applicable to flakes of zinc-based alloys such as t-Mg.
本発明の亜鉛フレークは、例えば以下の方法忙よって得
ることができる。The zinc flakes of the present invention can be obtained, for example, by the following method.
（１） 亜鉛粉末１００００重量超微粉シリカ超微粉
アルミナおよび／または超微粉酸化チタン０．１〜５．
０重量部を添加、充分攪拌・混合する。(1) Zinc powder 10,000 weight Ultrafine silica Ultrafine alumina and/or Ultrafine titanium oxide 0.1-5.
Add 0 parts by weight and stir and mix thoroughly.
（２） （１）で得□た混合物忙対し、０．１〜０．
５重量部のステアリン酸等の有機系粉砕助剤を加え、ボ
ールミル、振動ミル等で粉砕しフレーク化する。(2) The mixture obtained in (1) was mixed with 0.1-0.
Add 5 parts by weight of an organic grinding aid such as stearic acid, and grind into flakes using a ball mill, vibration mill, etc.
（３）篩分けくより粒度調整する。(3) Adjust the particle size by sieving.
「実施例」
さら（実施例、比較例に基づき具体的忙説明する。実施
例、比較例で得たフレーク状亜鉛粉末組成物は、後述の
方法で塗料化し性能を確認した。"Example" A detailed explanation will be given based on the Examples and Comparative Examples. The flaky zinc powder compositions obtained in the Examples and Comparative Examples were made into a paint by the method described below, and the performance was confirmed.
これらの結果も後述の表に示す。These results are also shown in the table below.
実施例１〜６（試験／Ｉ６ ／／６１〜２０）平均粒径
１５μの球状亜鉛粉末１００重量部に平均粒径１２ｍμ
の超微粉シリカ（日本アエロノル■商品名ＡＦ２ＲＯ８
ＸＬ２００）、平均粒径２０ｍμの超微粉アルミナ（日
本アエロ・ゾル株商品名ＡｌｕｍｉｎｉｍＯｘｉｄ・Ｃ
）、平均粒径３０ｍμの超微粉酸化チタン（日本アエロ
ジル■商品名Ｔｌｔａｎｉｕｍ □ｃｌｄ＠Ｐ２５）を
単独或は併用で０．１〜５．０重量％添加し、攪拌機〈
て１０分間攪拌混合した。混合物に有機系粉砕助剤を亜
鉛粉末１００重量部に対し、 ０．１−０．５重量％添
加し、さらに１分間攪拌させたものをボールミルで５
ｆｉｒ粉砕しフレーク状亜鉛粉末組成物を得た。ボール
ミルの運転方法は以下のよう忙行りた。内容積２０ｔの
ボールミルに直径１２ ｒａ／ｍの鋼球１０１９と直径
２０ ｒｒｖ’ｍの鋼球１０ｋＩｉを入れ、先に示した
前処理を施した亜鉛粉末を２ ｋｊＦ仕込み５時間運転
した。Examples 1 to 6 (Test/I6 //61 to 20) 100 parts by weight of spherical zinc powder with an average particle size of 15 μm was added with an average particle size of 12 μm.
Ultrafine powder silica (Japan Aeronol ■Product name AF2RO8
XL200), ultrafine powder alumina with an average particle size of 20 mμ (Japan Aero Sol Co., Ltd. trade name AluminimOxid・C)
), 0.1 to 5.0% by weight of ultrafine titanium oxide (Nippon Aerosil ■ trade name Tltanium □cld@P25) with an average particle size of 30 mμ was added alone or in combination, and a stirrer
The mixture was stirred and mixed for 10 minutes. 0.1-0.5% by weight of an organic grinding aid was added to the mixture based on 100 parts by weight of zinc powder, and the mixture was further stirred for 1 minute.
A flaky zinc powder composition was obtained by pulverizing with fir. The operation method of the ball mill was as follows. A steel ball 1019 with a diameter of 12 ra/m and a steel ball 10 kIi with a diameter of 20 rrv'm were placed in a ball mill having an internal volume of 20 t, and the mill was charged with 2 kjF of zinc powder pretreated as described above and operated for 5 hours.
実施例７（試験層 ４２１〜２４）
平均粒径２０μ、Ｚｎ −１０％ Ａｔ−０，１％ Ｋ
ｇの亜鉛基合金粉末１００重量部忙ステアリン酸０．５
重ｉｓと上記超弊粉シリカ０．５重量％を添加しボール
ミルで粉砕し、フレーク状亜鉛粉末組成物を得た。粉砕
助剤の添加、攪拌方法及びボールミルでの粉砕方法は実
施例１〜６と同様とした。Example 7 (Test layers 421-24) Average particle size 20 μ, Zn -10% At-0,1% K
g of zinc-based alloy powder 100 parts by weight stearic acid 0.5
A flaky zinc powder composition was obtained by adding 0.5 wt. The addition of the grinding aid, the stirring method, and the grinding method in a ball mill were the same as in Examples 1 to 6.
比較例１．（試験扁 ）駈１〜４）
亜鉛粉末１００重量部に上記超微粉シリカ１．０重量％
添加し、攪拌した混合物にステアリン酸０．０５重量％
添加しボールミルで粉砕した。原料の亜鉛粉末、粉末の
攪拌混合条件、ボールミルの運転条件は実施例と同一と
した。尚、以下の比較例２〜６においても、これらの条
件は実施例と同様である。Comparative example 1. (Test plate) 1 to 4) 1.0% by weight of the above ultrafine silica powder in 100 parts by weight of zinc powder
Add 0.05% by weight of stearic acid to the stirred mixture.
and ground in a ball mill. The raw material zinc powder, powder stirring and mixing conditions, and ball mill operating conditions were the same as in Examples. In addition, in the following Comparative Examples 2 to 6, these conditions are the same as in the examples.
比較例２．（試験Ａ Ａ５〜６）
上記超微粉シリカ０．５重量％とステアリン酸１、５賞
ｆ％を用いて粉砕した。Comparative example 2. (Test A A5-6) Pulverization was performed using 0.5% by weight of the ultrafine silica powder and 1.5% f% of stearic acid.
比較例３．（試験４ ４７〜８）
上記超微粉アルミナｏ、ｏｓｘｔ＊とオレイン酸０、５
重１１１Ｊを用いて粉砕した。Comparative example 3. (Test 4 47-8) The above ultrafine powder alumina o, osxt* and oleic acid 0, 5
It was crushed using a 111J heavy machine.
比較例４、（試験Ｉ６ Ｉ６９〜１ｏ）上記超微粉シリ
カ６、０ ｆｉ量チとステアリン酸０．２重ｔチを用い
て粉砕した。Comparative Example 4 (Test I6 I69 to 1o) The above ultrafine silica was pulverized using 6.0 fi amount of stearic acid and 0.2 weight of stearic acid.
比較例５．（試験Ａ ／ｌ６１１−１２）ステアリン
酸３．５ｔＪ［を用いて粉砕した。Comparative example 5. (Test A/1611-12) Grinding with 3.5 tJ of stearic acid.
比較例６．（試験Ａ Ａ １３〜１４）上記超微粉シ
リカ２．０重ｔｅｓを用いて粉砕した。Comparative example 6. (Test A A 13 to 14) The above-mentioned ultrafine silica was pulverized using 2.0 weight tes.
比較例７．（試験扁１５〜１８）
平均粒径５μの従来の塗料用球状亜鉛末をそのまま比較
例に用いた。Comparative example 7. (Test flats 15 to 18) Conventional spherical zinc powder for paints with an average particle size of 5 μm was used as it was in comparative examples.
以上の方法によシ、形状・粉砕助剤種及び含有量の異な
った種々の亜鉛粉末組成物を作シ、これ等亜鉛粉末組成
物および亜鉛粉末組成物を用いた亜鉛末塗料の性能試験
を実施した。結果くついては、後述の表等に示されたと
おりである。尚、塗料化に当うては、以下の条件で実施
した。Using the above method, various zinc powder compositions with different shapes, types of grinding aids, and contents were prepared, and performance tests of these zinc powder compositions and zinc powder paints using the zinc powder compositions were carried out. carried out. The results are as shown in the table below. The preparation of the paint was carried out under the following conditions.
ア、塗料用樹脂
■ −波型エポキシエステル樹脂（商品名：ハリ７ター
ルナ６０３播磨化成工業（株））。A. Resin for paint ■ - Wave-shaped epoxy ester resin (product name: Hari 7 Taruna 603 manufactured by Harima Kasei Kogyo Co., Ltd.).
■ エチルシリケート縮合物（日本コルコート社製エチ
ルシリケート４０とイソグロビルアルコールを混合し１
部分加水分解させて得た無機ジンクリ、チイイント用バ
インダー。この時の加水分解率は９５％とし、不揮発分
は２０％とした。尚、加水分解率とは、エチルシリケー
ト４０が加水分解によ、り ５ＩＯ２に変化する化学量
論的な水の量を加水分解４１００俤とした時の水量を云
う。■ Ethyl silicate condensate (Mix ethyl silicate 40 manufactured by Nippon Colcoat Co., Ltd. and isoglobil alcohol.
A binder for inorganic zinc and chiinto obtained by partial hydrolysis. The hydrolysis rate at this time was 95%, and the nonvolatile content was 20%. Note that the hydrolysis rate refers to the amount of water when the stoichiometric amount of water in which ethyl silicate 40 is converted to 5IO2 by hydrolysis is 4100 liters of hydrolysis.
イ、塗膜中の亜鉛及び亜鉛基合金量
乾量基準で４０％及び８５％の２つの水準とし、比較の
ために蒸留法で得られた平均粒径５μの球状亜鉛末を加
えた。A. The amount of zinc and zinc-based alloy in the coating film was set at two levels, 40% and 85% on a dry weight basis, and for comparison, spherical zinc powder with an average particle size of 5μ obtained by a distillation method was added.
これらを常法に従い塗料化した。今回のテストは亜鉛粉
末組成物の性能差を明確にするため、顔料分としてはフ
レーク状粉末あるいは球状亜鉛末とした。These were made into paint according to conventional methods. In this test, in order to clarify the performance differences between zinc powder compositions, flake-like powder or spherical zinc powder was used as the pigment component.
次に１表の亜鉛粉末組成物および亜鉛末塗料の試験方法
くついて以下に述べる。表中のビヒクルの種類で、ＥＰ
、 ＥＳはそれぞれ前述の一波型エポキ 。Next, the test methods for the zinc powder compositions and zinc powder paints shown in Table 1 will be described below. With the vehicle type in the table, EP
, ES are the single wave type epoxy mentioned above.
ジエステル樹脂及びエチルシリケート縮合物である。It is a diester resin and ethyl silicate condensate.
ア、亜鉛粉末組成物の貯蔵安定性
亜鉛粉末組成物１ゆを内容ｆ１ｚの蛋付丸型缶に入れ、
温度５０℃、相対湿度８０％の雰囲気で１ケ月放置した
。粉末の凝集程度を目視にて相対評価した。評価は○〜
×で示しその基準は以下のようである。A. Storage stability of zinc powder composition Place 1 cup of zinc powder composition in a round can with a lid of content f1z,
It was left for one month in an atmosphere with a temperature of 50° C. and a relative humidity of 80%. The degree of aggregation of the powder was visually evaluated. Rating: ○～
It is indicated by × and its criteria are as follows.
Ｏ：凝集はほとんど見られなく良好である。O: Good quality with almost no aggregation observed.
Δ：やや凝集は見られるが、再使用は可能である。Δ: Slight aggregation is observed, but reuse is possible.
×：凝集し再使用は不可能である。×: Agglomerated and cannot be reused.
イ、防錆性 赤錆の発生度を◎〜×で示した。A, Rust resistance The degree of occurrence of red rust was indicated by ◎ to ×.
その基準は、ＡＳＴＭ−Ｄ６１０／５ＳＰＣ−Ｖｉｓ
２）９〜１０点を◎、７〜８点を○、５〜６点をΔ、１
〜４点を×とした。The standard is ASTM-D610/5SPC-Vis
2) ◎ for 9-10 points, ○ for 7-8 points, Δ for 5-6 points, 1
~4 points were marked as x.
り、白錆の発生度 相対評価とした。少ない方から◎○Δ×で示した。, incidence of white rust It was a relative evaluation. Indicated by ◎○Δ× from smallest to largest.
−素地付着性
ショットプラスト銅板（日本テスト・クネル社製）にエ
アースグレーで塗装し、２０℃、７５％Ｒ−ＨＫ調整し
た室内で１週間乾燥させた後、２ ｒｒｖ’ｍ ２５ケ
のゴバン目チーグチストを実施し、１〜１０点の１０点
法で採点した。- A shotplast copper plate (manufactured by Nippon Test Quenell Co., Ltd.) with adhesion to the substrate was painted with Air Earth Gray, and after drying for one week in a room adjusted to 75% R-HK at 20°C, 25 gobans of 2 rrv'm were coated. Eye cheek test was performed and scored on a 10-point scale from 1 to 10.
オ、厚膜時のクラック膜厚
上配工と同様の条件で乾゛燥させた塗板のクラックの有
無を目視忙て判定し、クラック発生膜厚を測定した。判
定は膜厚〉１５０μを◎、１５０〜１００μを○、およ
び〈５０μを×とした。E. Cracks in thick film Film thickness The presence or absence of cracks in a coated plate dried under the same conditions as for the upper coating was determined visually, and the film thickness at which cracks occurred was measured. The evaluation was as follows: ◎ for film thickness>150μ, ○ for film thickness from 150 to 100μ, and × for film thickness <50μ.
力、顔料の沈降性
エチルシリケートをペースとしたものは、塗料の不揮発
分を６０％に調整して、２０℃で５時間静置した状態を
観察した。エポキシエステル樹脂をベースとしたものは
、塗料の不揮発分を６０％に調整して、５０℃で２４時
間靜装した後の状態を観察した。In the case of paints with precipitated pigment ethyl silicate as a paste, the non-volatile content of the paint was adjusted to 60%, and the paint was left standing at 20°C for 5 hours and observed. For those based on epoxy ester resin, the nonvolatile content of the paint was adjusted to 60%, and the state was observed after it was left undisturbed at 50°C for 24 hours.
これらの観察結果を◎〜×で示した。These observation results were indicated by ◎ to ×.
◎沈降物は全くなく非常に良好。◎ Very good condition with no sediment at all.
○軟沈降物はわずかＫあるが、容易に再分散する。○The soft sediment has only a small amount of K, but it is easily redispersed.
Δ顔料分のほとんどが軟沈降し、再分散に時間を要す。Most of the Δ pigment content settles softly, and redispersion takes time.
×ハードケーキを形成し、再分散に長時間を要する。x Forms a hard cake and takes a long time to redisperse.
キ、エアレススグレー性
圧ａ比３０：１のエアレス・スグレー装置を用い、−次
圧３ ！ｃＩＰ１０ｎ”で、チ、グサイズ１６３−６１
９（日本グレイ社製）を使用して、ノズルルチッグの詰
シをチェックした。Using an airless sougere device with an airless sougere pressure a ratio of 30:1, - next pressure 3! cIP10n”, size 163-61
9 (manufactured by Nippon Gray Co., Ltd.) to check the filling of the nozzle lug.
Ｏチッグの詰シはほとんどなく連続的にスグレー可能。There is almost no clogging of O-Chig, and it can be made continuously.
６３０分間に１同種度の詰りはあるが、スグレー性（問
題なし。There is one homogeneous blockage in 630 minutes, but it is soggy (no problem).
×２〜３分に１回以上の詰シがあり、連続スグレー不可
。×There is clogging more than once every 2 to 3 minutes, and continuous graying is not possible.
尚、特（ことわらない限シ、乾燥拡２０℃、７５ＳＲ−
Ｈの室内で行い、クラ、り膜厚の測定以外の膜厚は２０
±２μにフントロールした。In addition, unless otherwise specified, dry expansion at 20℃, 75SR-
The film thickness was measured at 20°C except for the measurement of cracking and peeling film thickness.
The test was carried out to ±2μ.
表に示した結果から明らかなよう忙ステアリン酸等の高
級脂肪酸及びこれ等の塩を０．１〜０．５重ｔ＊かつ超
微粉シリカ等の無機系粉砕助剤を０．１〜５．０重量％
含んだ系は、得られたフレークの形状、収率、貯蔵時の
安定性についても良好で、これらフレーク状亜鉛粉末組
成物を用いた塗料性能も防錆性、白錆発生性等について
優れた性能を発揮した。一方、有機系粉砕助剤或は無機
系粉砕助剤が上記範囲内を逸脱したものは、粉砕過程或
は塗料性能の点で問題が発生した。すなわち、有機系粉
砕助剤が不足する場合は、充分フレーク化されず亜鉛粒
子の凝集が発生し、他方０．５重量−以上と過剰の場合
は防錆性が劣る。無機系粉砕助剤が不足する場合も同様
に亜鉛粒子の凝集が起り、充分フレーク化されかい。他
方過剰の場合は同様に防錆性が劣る。As is clear from the results shown in the table, higher fatty acids such as stearic acid and their salts are added at 0.1 to 0.5 weight t*, and inorganic grinding aids such as ultrafine silica are added at 0.1 to 5 weight t*. 0% by weight
The system containing the flakes was also good in terms of shape, yield, and stability during storage, and the paint performance using these flaky zinc powder compositions was also excellent in terms of rust prevention, white rust generation, etc. It demonstrated its performance. On the other hand, when the organic grinding aid or inorganic grinding aid was outside the above range, problems occurred in the grinding process or coating performance. That is, if the organic grinding aid is insufficient, the zinc particles will not be sufficiently flaked and agglomeration will occur, while if it is in excess of 0.5 weight or more, the rust prevention properties will be poor. If the inorganic grinding aid is insufficient, the zinc particles will similarly agglomerate and may not be sufficiently flaked. On the other hand, if it is in excess, the rust prevention properties will be similarly poor.
粉砕時の凝集は１５０ ｒｎｓｓｈ（１０５μ）の収率
で表に示した。凝集の起った系は収率が低くなっている
。The agglomeration during grinding is shown in the table with a yield of 150 rnssh (105μ). Systems in which aggregation occurs have low yields.
又、性能試験の結果、無機系粉砕助剤添加量と白錆の発
生性は、はぼ反比例の関係にあシ白錆の抑制作用を有す
ることがわかった。従って、無機系粉砕助剤は白錆の調
整剤として、系により上記範囲内で適量使用すればよい
。Furthermore, as a result of the performance test, it was found that the amount of inorganic grinding aid added and the occurrence of white rust are inversely proportional to each other and have the effect of suppressing white rust. Therefore, the inorganic grinding aid may be used as a white rust regulator in an appropriate amount within the above range depending on the system.
これ等を項目別に詳述すると以下の通シである。A detailed explanation of each item is as follows.
１）亜鉛粉末組成物の貯蔵時における吸湿等による凝集
は、本発明の組成物ではほとんど認められなかった。1) Almost no aggregation due to moisture absorption or the like during storage of the zinc powder composition was observed in the composition of the present invention.
２）従来の球状亜鉛末に較べ防錆力が優れている。本発
明の亜鉛及び亜鉛基合金フレークは、乾燥塗膜中に４０
％の含有で球状亜鉛末を８５％含有した系と同等かそれ
以上の防錆力を示している。2) Excellent anti-corrosion ability compared to conventional spherical zinc powder. The zinc and zinc-based alloy flakes of the present invention contain 40%
% of spherical zinc powder, it shows the same or better anticorrosive power than a system containing 85% of spherical zinc powder.
これは、形状がフレークの場合、球状に較ぺ比表面積が
極めて大きいため、粒子間の接触が密に保たれ隠蔽性が
高いことによるものと思われる。This is thought to be because when the flake shape has an extremely large surface area compared to a spherical shape, close contact between the particles is maintained and the hiding property is high.
すなわち、亜鉛末塗料中の亜鉛含有量を大幅に低減する
ことが可能で、塗料設計時の自在性の大幅な上昇につな
がり、極めて好都合である。That is, it is possible to significantly reduce the zinc content in the zinc powder paint, leading to a significant increase in flexibility when designing the paint, which is extremely convenient.
３） 白錆Ｏコントロールが容易である。本発明で規
定する範囲内で超微粉粉末の添加量を変更することによ
り白錆の発生を抑制することが可能である。白錆の過度
の発生は塗膜寿命を短縮するのみでなく、上塗り性の阻
害等の弊害となり、適用範囲も大幅な制約を受けること
になる。3) White rust O control is easy. By changing the amount of ultrafine powder added within the range specified by the present invention, it is possible to suppress the occurrence of white rust. Excessive white rust not only shortens the life of the paint film, but also causes harmful effects such as inhibiting topcoatability, and greatly limits the range of application.
４）表よシ明らかな様に本発明の亜鉛フレークを用いた
系はクラ、り膜厚が大幅に向上した。従来からフレーク
状の顔料は塗膜の硬化時の内部応力を緩和する事がよく
知られており、タルク或はマイカ等がその用途に広く使
用されているが、本党明の亜鉛フレークにも轟然その効
果がある事が確ｘｙされ、亜鉛末塗料の厚膜化を考える
場合、極めて有効である。但し、比較ｆＩＩ１．４及び
６から判るように７スベクト比が３以下の場合は、その
有効性はほとんど認められなかりた。又、素地付着性も
球状亜鉛末と同等で何ら問題ない。4) As is clear from the table, the system using the zinc flakes of the present invention had significantly improved cracking and film thickness. It has long been well known that flake-like pigments relieve internal stress during the curing of paint films, and talc and mica are widely used for this purpose, but Honto Mei's zinc flakes also It has been proven that this effect is extremely effective, and it is extremely effective when considering increasing the thickness of zinc dust paint. However, as can be seen from the comparative fIIs of 1.4 and 6, when the 7S vector ratio was 3 or less, its effectiveness was hardly recognized. Also, the adhesion to the substrate is the same as that of spherical zinc powder, so there is no problem.
５）塗料の貯蔵安定性、特に顔料の沈降性は球状亜鉛末
の沈降が激しく、又、比較例１．４及び６のアスイクト
比の小さいものもその傾向がある。5) Regarding the storage stability of paints, especially the sedimentation property of pigments, spherical zinc powder tends to settle violently, and Comparative Examples 1.4 and 6 with low asquite ratios also have this tendency.
６）エアレス・スプレーでのｊンの詰りハ、−片の長さ
が大きくなると悪くなる傾向にあ）、最大長さが１００
μを超すとその現象は顕著になる。6) Clogged pipes in airless sprayers tend to get worse as the piece length increases), with a maximum length of 100 mm.
When μ is exceeded, the phenomenon becomes noticeable.
又、この様な組粒を含む塗膜は平滑な表面か得られない
ことも判った。It has also been found that a coating film containing such aggregated grains cannot provide a smooth surface.
以上の様に、本発明のフレーク状亜鉛粉末組成物は極め
て優れた性能を有し、製造工程も簡素化されているため
得られるフレークの品質も極めて安定なものである。同
時に、有機系粉砕助剤含有量が極めて僅少なため、その
使用に何ら制限がない。As described above, the flaky zinc powder composition of the present invention has extremely excellent performance, and since the manufacturing process is simplified, the quality of the obtained flakes is also extremely stable. At the same time, since the content of the organic grinding aid is extremely small, there are no restrictions on its use.
又、硬化乾燥性及びその他め塗膜物性、塗膜性能につい
ては従来の球状亜鉛末と何ら変わるところがなく、従来
同様の取シ扱いで差しつかえないことは言うまでもない
ことである。In addition, there is no difference in curing and drying properties, other coating film properties, and coating film performance from conventional spherical zinc powder, and it goes without saying that it can be handled in the same way as conventional ones.
「発明の効果」
以上から明らかな如く、本発明は以下の優れた特徴を有
するフレーク状亜鉛粉末組成物を提供することを可能と
した。"Effects of the Invention" As is clear from the above, the present invention has made it possible to provide a flaky zinc powder composition having the following excellent characteristics.
（１） 貯蔵安定性に優れ、篩分けも容易である。(1) It has excellent storage stability and is easy to sieve.
、 超微粉シリカ、アルミナ、酸化チタン粉末によシ貯
蔵中の吸湿による凝集が抑えられ、貯Ｒ後の分散性の優
れた粉末である。又、篩分けも容易である。The ultrafine silica, alumina, and titanium oxide powders suppress agglomeration due to moisture absorption during storage, and the powder has excellent dispersibility after storage. In addition, sieving is easy.
（２） 防錆性に優れている。(2) Excellent rust prevention.
有機系粉砕助剤の含有量が僅少なため、塗膜中において
亜鉛粒子間の金属接触が充分忙保たれ防清性にすぐれて
いる。Since the content of the organic grinding aid is small, metal contact between zinc particles is maintained sufficiently in the coating film, resulting in excellent anti-cleaning properties.
（３） 白錆の発生が少ない。(3) Less white rust occurs.
超微粉シリカ、アルミナ、酸化チタン、粉末で亜鉛粉末
表面を覆っているため、亜鉛粒子の活性度が適度に抑え
られ、塗膜の白錆の発生が少ない。Since the zinc powder surface is covered with ultrafine silica, alumina, titanium oxide, and powder, the activity of the zinc particles is moderately suppressed, reducing the occurrence of white rust on the paint film.
父、超微粉粉末量によシ白錆発生性のコントロールも可
能である。Furthermore, it is also possible to control the occurrence of white rust by changing the amount of ultra-fine powder.
（４） 安定した品質のフレーク状亜鉛粉宋組成物が
経済的に得られる。(4) A flaky zinc powder composition with stable quality can be obtained economically.
工程か簡素なため得られるフレーク状亜鉛粉末組成物の
品質は安定しておシ、又、経済的である。Since the process is simple, the quality of the resulting flaky zinc powder composition is stable and economical.
手続補正書
昭和６０年 １月１１日
特許庁長官 志 賀 学 殿
１、 事件の表示
特願昭５９−２４４３５８号
２、 発明の名称
フレーク状亜鉛粉末組成物
３、 補正をする者
事件との関係 特許出願人
名称 三会特殊塗料株式会社
４、代理人
住所 東京都港区虎ノ門五丁目１３番１号虎ノ門４ＯＪ
ｉビル明細書の発明の詳細な説明の欄
６、 補正の内容
明細書の第１４頁１５行の「銅板」を「鋼板」とする。Procedural amendment January 11, 1985 Manabu Shiga, Commissioner of the Patent Office1, Indication of the case Japanese Patent Application No. 1983-2443582, Title of the invention: Flaky zinc powder composition3, Person making the amendment Relationship with the case Patent applicant name: Sankai Special Paint Co., Ltd. 4, agent address: Toranomon 4OJ, 5-13-1 Toranomon, Minato-ku, Tokyo
In column 6 of the detailed description of the invention in the i-bill specification, the "copper plate" in line 15 on page 14 of the statement of contents of the amendment is changed to "steel plate."
Claims (3)
から選ばれた超微粉金属酸化物の含量が０．１〜５．０
重量％であり、かつ高級脂肪酸および／または高級脂肪
酸の周期律表IIＡ、IIＢ及びIIIＡ族の金属塩の含量が
０．１〜０．５重量％である亜鉛又は、亜鉛基合金のフ
レーク状粉末からなることを特徴とするフレーク状亜鉛
粉末組成物。(1) The content of ultrafine metal oxide selected from the group consisting of silica, alumina, and titanium oxide is 0.1 to 5.0.
% by weight, and the content of higher fatty acids and/or metal salts of groups IIA, IIB and IIIA of the periodic table of higher fatty acids is 0.1 to 0.5% by weight, flaky powder of zinc or zinc-based alloy. A flaky zinc powder composition comprising:
微粉酸化チタンが５０ｍμ以下の１次粒子の平均粒子径
を有する特許請求の範囲第１項記載のフレーク状亜鉛粉
末組成物。(2) The flaky zinc powder composition according to claim 1, wherein the ultrafine silica, the ultrafine alumina, and/or the ultrafine titanium oxide have an average primary particle diameter of 50 mμ or less.
均長径１．５〜３０μ、平均厚み５μ以下及びアスペク
ト比（長径／厚み）３以上の扁平状である特許請求の範
囲第１項及び第２項記載のフレーク状亜鉛粉末組成物。(3) The flaky powder has a flat shape with a maximum length of 100μ or less, an average major axis of 1.5 to 30μ, an average thickness of 5μ or less, and an aspect ratio (major axis/thickness) of 3 or more; 3. The flaky zinc powder composition according to item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59244356A JPS61123674A (en) | 1984-11-21 | 1984-11-21 | Flaky zinc powder composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59244356A JPS61123674A (en) | 1984-11-21 | 1984-11-21 | Flaky zinc powder composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61123674A true JPS61123674A (en) | 1986-06-11 |
| JPH0158228B2 JPH0158228B2 (en) | 1989-12-11 |
Family
ID=17117477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59244356A Granted JPS61123674A (en) | 1984-11-21 | 1984-11-21 | Flaky zinc powder composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61123674A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03285964A (en) * | 1990-04-02 | 1991-12-17 | Chugoku Marine Paints Ltd | Metallic powder added to coating |
| JP2005054073A (en) * | 2003-08-05 | 2005-03-03 | Chuo Rika Kogyo Corp | Rustproof coating composition |
| JP2008545861A (en) * | 2005-06-08 | 2008-12-18 | エッカルト ゲゼルシャフト ミット ベシュレンクテル ハフツング | Two-component rust-preventing paint, its use, and its production method |
| JP2021042344A (en) * | 2019-09-13 | 2021-03-18 | 堺化学工業株式会社 | Scaly zinc powder-containing composition and manufacturing method of scaly zinc powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826034A (en) * | 1981-07-31 | 1983-02-16 | Toda Kogyo Corp | Manufacture of heat resistant yellow pigment |
| JPS59133265A (en) * | 1983-01-20 | 1984-07-31 | Nippon Chem Ind Co Ltd:The | Extender pigment |
| JPS59156913A (en) * | 1983-02-25 | 1984-09-06 | Nippon Chem Ind Co Ltd:The | Extender pigment and its manufacture |
-
1984
- 1984-11-21 JP JP59244356A patent/JPS61123674A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826034A (en) * | 1981-07-31 | 1983-02-16 | Toda Kogyo Corp | Manufacture of heat resistant yellow pigment |
| JPS59133265A (en) * | 1983-01-20 | 1984-07-31 | Nippon Chem Ind Co Ltd:The | Extender pigment |
| JPS59156913A (en) * | 1983-02-25 | 1984-09-06 | Nippon Chem Ind Co Ltd:The | Extender pigment and its manufacture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03285964A (en) * | 1990-04-02 | 1991-12-17 | Chugoku Marine Paints Ltd | Metallic powder added to coating |
| JP2005054073A (en) * | 2003-08-05 | 2005-03-03 | Chuo Rika Kogyo Corp | Rustproof coating composition |
| JP4573506B2 (en) * | 2003-08-05 | 2010-11-04 | 株式会社ディ・アンド・ディ | Rust preventive paint composition |
| JP2008545861A (en) * | 2005-06-08 | 2008-12-18 | エッカルト ゲゼルシャフト ミット ベシュレンクテル ハフツング | Two-component rust-preventing paint, its use, and its production method |
| JP2021042344A (en) * | 2019-09-13 | 2021-03-18 | 堺化学工業株式会社 | Scaly zinc powder-containing composition and manufacturing method of scaly zinc powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0158228B2 (en) | 1989-12-11 |
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