JPS63207871A - Fine powder of nylon resin for coating and production thereof - Google Patents
Fine powder of nylon resin for coating and production thereofInfo
- Publication number
- JPS63207871A JPS63207871A JP4199687A JP4199687A JPS63207871A JP S63207871 A JPS63207871 A JP S63207871A JP 4199687 A JP4199687 A JP 4199687A JP 4199687 A JP4199687 A JP 4199687A JP S63207871 A JPS63207871 A JP S63207871A
- Authority
- JP
- Japan
- Prior art keywords
- nylon resin
- epoxy resin
- weight
- powder
- nylon
- 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
- 239000004677 Nylon Substances 0.000 title claims abstract description 29
- 229920001778 nylon Polymers 0.000 title claims abstract description 29
- 229920005989 resin Polymers 0.000 title claims abstract description 27
- 239000011347 resin Substances 0.000 title claims abstract description 27
- 239000000843 powder Substances 0.000 title claims abstract description 14
- 239000011248 coating agent Substances 0.000 title claims description 9
- 238000000576 coating method Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 17
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 17
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 239000010419 fine particle Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000008188 pellet Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000012298 atmosphere Substances 0.000 claims abstract description 3
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 230000001376 precipitating effect Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- 239000004848 polyfunctional curative Substances 0.000 abstract 2
- 239000000470 constituent Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 13
- 239000002184 metal Substances 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、流動浸漬或は靜電塗装に使用する塗装用ナ
イロン樹脂微粉末及びその製法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fine nylon resin powder for coating used in fluidized dipping or seiden coating, and a method for producing the same.
（従来技術）
ナイロン樹脂の優れた特性を利用するなめに金属表面に
ナイロン塗装が施されているが、ナイロン樹脂は金属に
対する接着性がよくないことからプライマー処理が必要
であり、このため塗装コストを低減できない欠点がある
。(Prior art) Nylon coating is applied to metal surfaces to take advantage of the excellent properties of nylon resin, but nylon resin does not have good adhesion to metal, so primer treatment is required, which reduces the coating cost. There is a drawback that it cannot be reduced.
（本発明の目的）
本発明は、プライマー処理が不要な塗装用エポキシ樹脂
含有ナイロン樹脂微粉末を提供せんとするものであって
、塗装金属面にエポキシ樹脂層とナイロン樹脂層の二層
を塗装時において同時゛に形成させることができる均質
粒度の微粉末を提供せんとするものである。(Objective of the present invention) The present invention aims to provide a fine nylon resin powder containing an epoxy resin for painting that does not require primer treatment, and in which two layers of an epoxy resin layer and a nylon resin layer are coated on a painted metal surface. It is an object of the present invention to provide a fine powder of uniform particle size that can be formed simultaneously at different times.
また本発明の目的は、コストを低減する目的で生成粒子
の粒度範囲が塗装用として好適でしかも洗浄を容易且つ
安価にできる°方法を提供することにある。Another object of the present invention is to provide a method in which the particle size range of produced particles is suitable for coating, and cleaning is easy and inexpensive, in order to reduce costs.
本発明者はこれらの目的を達成するため先ずナイロン樹
脂の溶剤として各穐の水溶性低沸点溶剤について研究し
た結果、モルホリン・（エチルモルホリン及びメチルモ
ルホリンを含む以下同じ）が効果的であることを発見し
た。In order to achieve these objectives, the present inventor first studied various water-soluble low boiling point solvents as solvents for nylon resin, and found that morpholine (including ethylmorpholine and methylmorpholine, hereinafter the same) is effective. discovered.
この溶剤は水洗によって容易に除去できるばかりでなく
製品粒子の用蓮が例えば着色塗料などの場合は水洗い工
程を省略できる特長がある。This solvent not only can be easily removed by washing with water, but also has the advantage that the washing step can be omitted if the product particles are, for example, colored paint.
更に溶剤に対するナイロン樹脂の溶解量は溶剤１００１
に対して５０題まで可能であり溶解量によって粒子径及
び粒度分布を変化させることができる。Furthermore, the amount of nylon resin dissolved in the solvent is 1001
Up to 50 samples can be prepared for each particle, and the particle size and particle size distribution can be changed depending on the amount dissolved.
従って用途に適した粒度に基づいて溶液濃度を調整する
ことによって分級作業が容易になり又は不要にすること
ができるのである。Therefore, by adjusting the solution concentration based on the particle size suitable for the application, classification work can be facilitated or eliminated.
更に本発明に係る製法の特長はナイロン樹脂中にエポキ
シ樹脂を均一に含有させるために化学溶解法によって製
造されるが溶解時においてエポキシ樹脂と硬化剤が反応
しない温度で行われることが必要であり、このため硬化
剤の反応温度はナイロン樹脂の溶解温度より高いものが
ｊＭばれることである。Furthermore, the manufacturing method according to the present invention is characterized in that it is manufactured by a chemical dissolution method in order to uniformly contain the epoxy resin in the nylon resin, but it is necessary that the melting be carried out at a temperature at which the epoxy resin and the curing agent do not react. Therefore, the reaction temperature of the curing agent must be higher than the melting temperature of the nylon resin.
また本発明に係るナイロン樹脂微粉−末の特長は、各粒
子内に所定量のエポキシ樹脂とその硬化剤を均一に含有
しており、塗装時においては両樹脂の溶融温度の差によ
って先ずエポキシ樹脂が溶融して接着金属面にエポキシ
樹脂膜を形成してプライマーを兼用し、その後の継続加
熱によってエポキシ樹脂の硬化反応が開始され、この硬
化反応と共にナイロン樹脂の外被が形成され一挙に二層
コートが可能になることである。In addition, the nylon resin fine powder according to the present invention has a feature that each particle uniformly contains a predetermined amount of epoxy resin and its curing agent. The epoxy resin is melted and forms an epoxy resin film on the bonded metal surface, which also serves as a primer.Continuous heating thereafter starts the curing reaction of the epoxy resin, and along with this curing reaction, an outer covering of nylon resin is formed, forming two layers at once. It is possible to coat.
（本発明の構成〉
本発明に係る塗装用ナイロン樹脂微粉末は、ナイロン樹
脂に対して１〜２０重量％のエポキシ樹脂と該エポキシ
樹脂に対して０．１〜５重量％の硬化剤が均一に分散配
合されてなるものであり、硬化剤の量は上記限度より多
くしても接着強度の増大は認められない。(Structure of the present invention) The nylon resin fine powder for coating according to the present invention uniformly contains 1 to 20% by weight of epoxy resin based on the nylon resin and 0.1 to 5% by weight of a curing agent based on the epoxy resin. The adhesive strength is not increased even if the amount of the curing agent is greater than the above limit.
また硬化剤の反応温度はナイロンの溶解温度より高いも
のでなければならない。Also, the reaction temperature of the curing agent must be higher than the melting temperature of nylon.
更に本発明の製法は撹拌器及び加熱装置を備えた容器内
において、ナイロン樹脂ペレット１〜５０ｆＵｉ部と該
ナイロン樹脂に対して、１〜２０重量％のエポキシ樹脂
と該エポキシ樹脂に対して０．１〜５重量％の硬化剤の
夫々を、モルホリン１００容量部に非酸化性雰囲気下に
おいて前記硬化剤が反応しない温度で加熱溶解させてが
ら除冷し、この除冷過程で溶液中に前記各溶質の均一混
合物微粒子を析出させその後溶剤を減圧回収するか又は
析出微粒子を濾別することを特徴とするものである。Furthermore, the manufacturing method of the present invention includes 1 to 50 fUi parts of nylon resin pellets, 1 to 20 wt. 1 to 5% by weight of each of the curing agents is dissolved in 100 parts by volume of morpholine in a non-oxidizing atmosphere at a temperature at which the curing agents do not react, and then slowly cooled. The method is characterized in that fine particles of a homogeneous mixture of solutes are precipitated, and then the solvent is recovered under reduced pressure or the precipitated fine particles are separated by filtration.
ナイロン樹脂の溶解温度は１４０°Ｃ以下、好ましくは
経済効率の点から１３０°Ｃ位が望ましい。The melting temperature of the nylon resin is 140°C or less, preferably about 130°C from the viewpoint of economic efficiency.
また硬化剤はその反応温度が１３５°Ｃ以上好ましくは
１５０°Ｃ以上のものがよい。The curing agent preferably has a reaction temperature of 135°C or higher, preferably 150°C or higher.
ナイロン樹脂溶解量が多いときは液の粘度が高いため濾
別は困難でありこの場合は槽内において溶剤が減圧回収
される。When the amount of dissolved nylon resin is large, the viscosity of the liquid is high, making it difficult to filter it, and in this case, the solvent is recovered under reduced pressure in the tank.
（効果）
本発明において溶剤は水洗によって容易に除去できる他
、溶解量が多い場合で溶剤を減圧回収する場合でも低沸
点であるから効率よく回収でき、更に水洗によって洗浄
できるので、経済的であり製造コストを廉価にできる。(Effects) In the present invention, the solvent can be easily removed by washing with water, and even when the amount of dissolved solvent is large and the solvent is recovered under reduced pressure, it can be efficiently recovered because it has a low boiling point, and it can be cleaned by washing with water, so it is economical. Manufacturing costs can be reduced.
また塗装に当たってブライマーが不要であるからナイロ
ン樹脂被膜の塗装コストを著しく低減できるのである。Furthermore, since no brimer is required during painting, the cost of painting the nylon resin film can be significantly reduced.
（実施例）
容積１５０１の溶解槽に、モルホリン１００１、ナイロ
ン１２ペレット５ｋｇ、エポキシ樹脂５００ｇ、硬化剤
（反応温度１５０°Ｃ１６時間）（油化シェルエポキシ
製）２．５ｇを投入し、槽内の空気を窒素ガスに１替し
て攪拌翼の回転数１１００ｒｐで１３０°Ｃ〜１４０°
Ｃに加熱し、約１時間後完全溶解させた。(Example) Morpholine 1001, 5 kg of nylon 12 pellets, 500 g of epoxy resin, and 2.5 g of curing agent (reaction temperature: 150°C, 16 hours) (manufactured by Yuka Shell Epoxy) were placed in a dissolution tank with a volume of 1501, and the contents of the tank were Replace air with nitrogen gas and stir at 130°C to 140° at a rotation speed of 1100 rpm.
C. and completely dissolved after about 1 hour.
攪拌を継続しながら１００°Ｃまで除冷したところで液
が白濁して微粉末が析出した。When the mixture was slowly cooled to 100°C while stirring, the liquid became cloudy and fine powder was precipitated.
その復液が７０゛Ｃになったとき液をフィルタープレス
に導入して溶剤と析出粒子を分離し、濾別された生成粒
子を７０°Ｃの温水で水洗いし脱水乾燥した。When the condensate reached 70°C, the liquid was introduced into a filter press to separate the solvent and precipitated particles, and the filtered particles were washed with warm water at 70°C and dehydrated and dried.
得られた粒子の粒径は、１０〜４０μｍのものが８０％
であってそのまま塗装用に使用できるものであった。80% of the obtained particles have a particle size of 10 to 40 μm.
Therefore, it could be used as is for painting.
（接着力試験χ
試験片として長さ１００ｍｍＸ１５ｍｍの２枚の鋼板の
一端部１５ｍｍＸ１５ｍｍを夫々接着面としてＡＡ−８
’Ｏのエメリーバで研磨し、該部面に前記実施例微粉末
を付着させて１８０〜１８５°Ｃで１時間加熱して接着
させ、完全冷却後両端に引張力を加えて剪断引張強度を
測定した結果は下記のようであった。(Adhesion test
Polished with a 'O' emery bar, attached the fine powder of the example above to the surface, heated at 180-185°C for 1 hour to bond, and after cooling completely, tensile force was applied to both ends to measure the shear tensile strength. The results were as follows.
１ ２８２（ｋｇ／２２５ａｆｆｌ）平均
２７７ （１２３ｋｇ／ｃｎｉ）以上1 282 (kg/225affl) average
277 (123kg/cni) or more
Claims (2)
１〜２０重量％のエポキシ樹脂と該エポキシ樹脂に対し
て０．１〜５重量％の硬化剤が均一に分散配合されてな
る塗装用ナイロン樹脂微粉末。(1) For coating, 1 to 20% by weight of epoxy resin based on the nylon resin and a curing agent of 0.1 to 5% by weight based on the epoxy resin are uniformly dispersed in fine nylon resin powder. Nylon resin fine powder.
イロン樹脂ペレット１〜５０重量部と該ナイロン樹脂に
対して１〜２０重量％のエポキシ樹脂と該エポキシ樹脂
に対して０．１〜５重量％の硬化剤の夫々を、モルホリ
ン１００容量部に非酸化性雰囲気下において前記硬化剤
が反応しない温度で加熱溶解させてから除冷し、この除
冷過程で溶液中に前記各溶質の均一混合物微粒子を析出
させその後溶剤を減圧回収するか又は析出微粒子を濾別
することを特徴とする塗装用ナイロン樹脂微粉末の製法
。(2) In a container equipped with a stirrer and a heating device, 1 to 50 parts by weight of nylon resin pellets, 1 to 20 parts by weight of epoxy resin based on the nylon resin, and 0.1 to 5 parts by weight based on the epoxy resin. % by weight of each of the curing agents is dissolved in 100 parts by volume of morpholine in a non-oxidizing atmosphere at a temperature at which the curing agents do not react, and then slowly cooled. During this gradual cooling process, each of the solutes becomes uniform in the solution. A method for producing fine nylon resin powder for coating, which comprises precipitating mixture fine particles and then recovering the solvent under reduced pressure or separating the precipitated fine particles by filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62041996A JPH07103329B2 (en) | 1987-02-25 | 1987-02-25 | Nylon resin fine powder for painting and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62041996A JPH07103329B2 (en) | 1987-02-25 | 1987-02-25 | Nylon resin fine powder for painting and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63207871A true JPS63207871A (en) | 1988-08-29 |
| JPH07103329B2 JPH07103329B2 (en) | 1995-11-08 |
Family
ID=12623810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62041996A Expired - Lifetime JPH07103329B2 (en) | 1987-02-25 | 1987-02-25 | Nylon resin fine powder for painting and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07103329B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010031198A (en) * | 2008-07-31 | 2010-02-12 | Toray Ind Inc | Copolymerized polyamide fine particle and carbon fiber-reinforced composite material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5565263A (en) * | 1978-11-07 | 1980-05-16 | Polymer Corp | Adhesivity improved coating powder |
| JPS56152832A (en) * | 1980-04-28 | 1981-11-26 | Asahi Chem Ind Co Ltd | Flexible epoxy resin composition |
-
1987
- 1987-02-25 JP JP62041996A patent/JPH07103329B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5565263A (en) * | 1978-11-07 | 1980-05-16 | Polymer Corp | Adhesivity improved coating powder |
| JPS56152832A (en) * | 1980-04-28 | 1981-11-26 | Asahi Chem Ind Co Ltd | Flexible epoxy resin composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010031198A (en) * | 2008-07-31 | 2010-02-12 | Toray Ind Inc | Copolymerized polyamide fine particle and carbon fiber-reinforced composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103329B2 (en) | 1995-11-08 |
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