JPH01319563A - Melamine resin molding material - Google Patents

Melamine resin molding material

Info

Publication number
JPH01319563A
JPH01319563A JP15170388A JP15170388A JPH01319563A JP H01319563 A JPH01319563 A JP H01319563A JP 15170388 A JP15170388 A JP 15170388A JP 15170388 A JP15170388 A JP 15170388A JP H01319563 A JPH01319563 A JP H01319563A
Authority
JP
Japan
Prior art keywords
melamine resin
molding material
melamine
resin molding
molar ratio
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.)
Pending
Application number
JP15170388A
Other languages
Japanese (ja)
Inventor
Nobuyuki Kawamura
信行 川村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP15170388A priority Critical patent/JPH01319563A/en
Publication of JPH01319563A publication Critical patent/JPH01319563A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE:To obtain the subject molding material significantly improved in impact resistance, suitable for electrical appliances, domestic articles, etc., by incorporating a specific modified melamine resin with at least a fibrous filler. CONSTITUTION:A reaction is made between (A) melamine and (B) a glycidyl compound (e.g., ethylene glycol glycidyl ether) in a molar ratio B/A=0.01-5.8, and the resulting reaction product is allowed to react with (C) formaldehyde in such a molar ratio C/(A-B)=0.5-4 to produce a modified melamine resin. Then, this resin is impregnated into a fibrous filler, thus obtaining the objective molding material.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電気器具、家庭用品、スポーツ用品等に用いら
れるメラミン樹脂成形材料に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a melamine resin molding material used for electrical appliances, household goods, sporting goods, and the like.

〔従来の技術〕[Conventional technology]

従来、メラミン樹脂成形材料から得られるメラミン樹脂
成形材料は、その優れた機械的強度、電気的性能、着色
性等の点で広い分野に用(八られてbるが強靭性に劣る
問題があり、耐衝撃性を必要とする分野では用いること
ができなかった。
Conventionally, melamine resin molding materials obtained from melamine resin molding materials have been used in a wide range of fields due to their excellent mechanical strength, electrical performance, colorability, etc. (However, they have the problem of poor toughness. However, it could not be used in fields requiring impact resistance.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の技術で述べたように従来のメラミン樹脂成形品を
耐衝撃性を必要とする分野に用層ることができなかった
。本発明は従来の技術における上述の問題点に鑑みてな
されたもので、その目的とするところは、耐衝撃性に優
れた成形品が得られるメラミン樹脂成形材料を提供する
ことにある。
As described in the prior art section, conventional melamine resin molded products could not be used in fields requiring impact resistance. The present invention has been made in view of the above-mentioned problems in the prior art, and an object thereof is to provide a melamine resin molding material from which a molded article with excellent impact resistance can be obtained.

〔問題点を解決するための手段〕[Means for solving problems]

(1)メラミンとグリシジル化合物との反応物に、ホル
ムアルデヒドを反応させてなる変性メラミン樹脂に少く
とも繊維質充填剤を含有させてなることを特徴とするメ
ラミン樹脂成形材料のため、強靭性を有する変性メラミ
ン樹脂と繊維質充填剤により耐衝撃性を著るしく向上す
ることができたもので、以下本発明の詳細な説明する。
(1) It has toughness because it is a melamine resin molding material characterized by containing at least a fibrous filler in a modified melamine resin made by reacting formaldehyde with a reaction product of melamine and a glycidyl compound. The impact resistance can be significantly improved by using a modified melamine resin and a fibrous filler, and the present invention will be described in detail below.

本発明でメラミンと反応さぜるり11シジル化合ルエー
テルも含むものである。本発明において用すて好まし−
グリシジル化合物を例示すれば、エチレングリコールグ
リシジルエーテル、ポリエチレングリコールジグ11シ
ジルエーテル、ポリプロピレンダ11コールグリシジル
エーテル、ネオペンナルク’ 11コールジグリシジル
エーテル、1.6ヘギサンジオールグリシジルエーテル
、トリメチロールプロパンボ11り11シジルエーテル
、ポリエチレングリコールジグリシジルエーテルなどで
ある。
The present invention also includes 11-sidyl compound ether reacted with melamine. Preferably used in the present invention -
Examples of glycidyl compounds include ethylene glycol glycidyl ether, polyethylene glycol dig 11 cidyl ether, polypropylenda 11 call glycidyl ether, neopenalc' 11 call diglycidyl ether, 1.6 hegysandiol glycidyl ether, trimethylol propane 11 These include cidyl ether and polyethylene glycol diglycidyl ether.

本発明におめではこのグリシジル化合物によっテメラミ
ン樹脂を変性するものであり、グリシジル化合物で変性
したメラミン樹脂を調製するJこあたりては、まず−次
反応としてメラミンとグリシジル化合物とを反応させ、
次ぎに二次反応としてこの反応物とホルム“アルデヒド
とを反応させることによっておこなうことができる。−
次反応は8゜−100℃で10〜150分間程度反応さ
せることが好ましく、二次反応は70〜90℃で5〜6
0分間反応させることが望ましいことである。また、上
記反応の際の各成分の配合蛍は、メラミンのモル数ヲI
VI’sグ1jシシル化合物のモル数を01ホルムアル
デヒドのセル数をFとすると、 メラミンに対するグリシジル化合物のモル比がG / 
M、 = v、o 1〜5.sメラミンとグリシジル化
合物のセル数の差に対するホルムアルデヒドのモル比が F/ IM−Gl=  (J、5〜40となるようにそ
の範囲を設定するのが望ましい。
In the present invention, temelamine resin is modified with this glycidyl compound, and in order to prepare a melamine resin modified with a glycidyl compound, first, as a second reaction, melamine and a glycidyl compound are reacted,
Next, a secondary reaction can be carried out by reacting this reactant with formaldehyde.
The next reaction is preferably carried out at 8°-100°C for about 10-150 minutes, and the secondary reaction is carried out at 70-90°C for 5-6 minutes.
It is desirable to react for 0 minutes. In addition, the composition of each component in the above reaction is determined by the number of moles of melamine.
If the number of moles of the glycidyl compound is 01 and the number of cells of formaldehyde is F, then the molar ratio of the glycidyl compound to melamine is G/
M, = v, o 1-5. It is desirable to set the range so that the molar ratio of formaldehyde to the difference in the number of cells between melamine and the glycidyl compound is F/IM-Gl=(J, 5 to 40).

メラミンに対するグリシジル化合物のモル比が(1,0
1未満であるとり]1シジル化合物による変性が不士分
で、メラミン樹脂の可撓性を旨めて強靭性を同上させる
効果を十分jこ得ることができず、才たこのモル比が5
.8を超えると反応系でのグリシジル化合物の匍か多く
なり過きてアミンの作用でゲル化し易くなり、同様にメ
ラミン樹脂の可撓性を旨めて強靭性を向上させる効果を
十分に得ることかできない。一般的にはメラミン樹脂の
モル数Mはグリシジル化合物のモル数Gよりも大きく設
定される。さらlこメラミンとグリシジル化合物のモル
数の差に対するホルムアルデヒドのモル比が0.5未満
であるとホルムアルデヒドの配合蓋カゴ不十分でメラミ
ン樹脂を十分に硬化させることができず、またこのモル
比が4.0を超えるとポルムアルデヒドが過多となって
メラミン樹脂の架橋密度が高くなり過ぎ、メラミン樹脂
の可撓性を高めて強靭性を向上させる効果を十分に得る
ことができない。
The molar ratio of glycidyl compound to melamine is (1,0
If the molar ratio is less than 1, the modification with the 1 cidyl compound is insufficient, and the effect of improving the flexibility and toughness of the melamine resin cannot be sufficiently achieved, and the molar ratio of the melamine resin is less than 5.
.. If it exceeds 8, the amount of glycidyl compound in the reaction system will be too large and will easily gel due to the action of the amine. Similarly, the effect of improving the flexibility and toughness of the melamine resin should be sufficiently obtained. I can't do it. Generally, the number of moles M of the melamine resin is set larger than the number G of moles of the glycidyl compound. If the molar ratio of formaldehyde to the difference in the number of moles between melamine and glycidyl compound is less than 0.5, the melamine resin will not be sufficiently cured due to insufficient formaldehyde, and if this molar ratio is If it exceeds 4.0, there will be too much polyaldehyde and the crosslinking density of the melamine resin will become too high, making it impossible to sufficiently obtain the effect of increasing the flexibility and toughness of the melamine resin.

このように反応させることによって得られるものはシラ
ーlプ状で、このまま充填剤等に含浸、乾燥、粉砕して
用(八ることができるが、好ましくは該シラリプ状変性
メラミン」η↑脂を真空加熱脱水法、スプレー、ドライ
ヤー法、薄膜蒸発法等の脱水法lこよ−て固型化し、固
型変性メラミン樹脂として用層ることがより強靭性が大
となるため望まし込ことである。繊維質充填剤としては
ガラス繊維、アラミド繊維、カーボン繊維、スチールフ
ァイバーやアルミ繊維や真鍮繊維等の金属繊維等で繊維
質充填剤の繊維長は1〜15flのものが好ましlA。
The product obtained by this reaction is in the form of a syrup, which can be used as it is by impregnating it with a filler, etc., drying, and pulverizing it, but it is preferable to use the modified melamine in the form of a syrup. Dehydration methods such as vacuum heating dehydration method, spray, dryer method, thin film evaporation method, etc. are preferably used to solidify and use as a solid modified melamine resin layer, as this will increase the toughness. The fibrous filler includes glass fibers, aramid fibers, carbon fibers, steel fibers, and metal fibers such as aluminum fibers and brass fibers, and the fiber length of the fibrous filler is preferably 1 to 15 fl.

樹脂、繊維質充填剤以外の充填剤、強化剤、硬化剤、着
色剤、離型剤、分散助剤等にっ層ては必要lこ応1″、
て添加することカjできるものである。
For resins, fillers other than fibrous fillers, reinforcing agents, curing agents, coloring agents, mold release agents, dispersion aids, etc., 1" is required.
It can be added to

以下本発明を実施例にもとっ論て説明する。The present invention will be explained below with reference to Examples.

実施例 メラミンxsooF、ポリエチレフグリコールジグリシ
シルエーテル75oy1水143oy  をそり、 ソ
fL51!の三つロフラスコlこ仕込み、昇温して95
℃の温度で45分間反応させた。次き′にこれに404
ホルマリンを19359  注入したのちlこ昇温して
85℃で35分間反応させることによって、グリシジル
化合物で変性したメラミン樹脂シラiプを得た。この配
合にお−てG、/M=(J、12  であり、F/CM
−G)=2.46  である。
Example Melamine Prepare a three-bottle flask and raise the temperature to 95.
The reaction was carried out for 45 minutes at a temperature of .degree. Next' to this 404
A melamine resin syrup modified with a glycidyl compound was obtained by injecting 19359 ml of formalin, raising the temperature to 85° C., and reacting for 35 minutes. In this formulation, G,/M=(J, 12, and F/CM
-G)=2.46.

とのシラ・・プ状変性メラミン樹脂を薄膜蒸発脱水法で
固型化して固型変性メラミン樹脂を得た。
A solid modified melamine resin was obtained by solidifying the silica-shaped modified melamine resin using a thin film evaporation dehydration method.

次(こ上記固型変性メラミン樹脂100重量部(以下朧
に部と記す)に対しスチールファイバー100部、ステ
ア’ IIン酸亜鉛2部、無水フタルmI O,5部を
添加しニーダ−で混練後、粉砕してメラミン樹脂成形材
料を得た。
Next (to 100 parts by weight of the above solid modified melamine resin (hereinafter referred to as Oboroni parts), 100 parts of steel fiber, 2 parts of zinc stear' II phosphate, and 5 parts of anhydrous phthalic mI O were added and kneaded in a kneader. Thereafter, it was crushed to obtain a melamine resin molding material.

比較例 変性してな(ハメラミン樹脂成形材料(松下電工株式会
社製、品妃’CP−9012)を比較例とした。
Comparative Example A modified Hamelamine resin molding material (manufactured by Matsushita Electric Works Co., Ltd., Shinhi'CP-9012) was used as a comparative example.

実施例及び比較例のメラミン防服成形材料を、成形圧力
2001cq/ctI、 145℃で2分mJ圧粗hk
形してメラミン樹脂成形品を得、衝撃強度を測定した結
果は第1表のようである。
The melamine clothing molding materials of Examples and Comparative Examples were subjected to a molding pressure of 2001 cq/ctI, 2 minutes mJ pressure roughening hk at 145°C.
A melamine resin molded article was obtained, and the impact strength was measured. The results are shown in Table 1.

第1表 〔発明の効果〕 本発明は上述した如く構成されており、本発明のメラミ
ン樹脂成形材料にお−ては、メラミン樹脂成形品の耐f
f*j*注を儲るしく向上させる効果を有している。
Table 1 [Effects of the Invention] The present invention is constructed as described above, and the melamine resin molding material of the present invention has a high f resistance of melamine resin molded products.
It has the effect of profitably improving f*j*note.

Claims (2)

【特許請求の範囲】[Claims] (1)メラミンとグリシジル化合物との反応物に、ホル
ムアルデヒドを反応させてなる変性メラミン樹脂に少く
とも繊維質充填剤を含有させてなることを特徴とするメ
ラミン樹脂成形材料。
(1) A melamine resin molding material comprising at least a fibrous filler contained in a modified melamine resin obtained by reacting formaldehyde with a reaction product of melamine and a glycidyl compound.
(2)変性メラミン樹脂が固型であることを特徴とする
特許請求の範囲第1項記載のメラミン樹脂成形材料。
(2) The melamine resin molding material according to claim 1, wherein the modified melamine resin is solid.
JP15170388A 1988-06-20 1988-06-20 Melamine resin molding material Pending JPH01319563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15170388A JPH01319563A (en) 1988-06-20 1988-06-20 Melamine resin molding material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15170388A JPH01319563A (en) 1988-06-20 1988-06-20 Melamine resin molding material

Publications (1)

Publication Number Publication Date
JPH01319563A true JPH01319563A (en) 1989-12-25

Family

ID=15524423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15170388A Pending JPH01319563A (en) 1988-06-20 1988-06-20 Melamine resin molding material

Country Status (1)

Country Link
JP (1) JPH01319563A (en)

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