JP2543978B2 - Zinc borate flame retardant - Google Patents
Zinc borate flame retardantInfo
- Publication number
- JP2543978B2 JP2543978B2 JP1088439A JP8843989A JP2543978B2 JP 2543978 B2 JP2543978 B2 JP 2543978B2 JP 1088439 A JP1088439 A JP 1088439A JP 8843989 A JP8843989 A JP 8843989A JP 2543978 B2 JP2543978 B2 JP 2543978B2
- Authority
- JP
- Japan
- Prior art keywords
- zinc borate
- flame retardant
- salts
- minutes
- mixed
- 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 - Fee Related
Links
Landscapes
- Fireproofing Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明はホウ酸亜鉛系の難燃剤に関し、より詳細に
は、合成樹脂に配合した際の難燃性に優れ、しかも、合
成樹脂の熱安定性を損なわないホウ酸亜鉛系難燃剤に関
するものである。TECHNICAL FIELD The present invention relates to a zinc borate flame retardant, and more specifically, it has excellent flame retardancy when compounded with a synthetic resin, and moreover has a thermal resistance of the synthetic resin. The present invention relates to a zinc borate flame retardant that does not impair stability.
＜従来の技術と発明が解決しようとする課題＞ 従来、合成樹脂製の建材や内装材、或いは電線等にお
いては、防災上の観点から難燃化が要求されており、そ
れに対応するため、種々の難燃剤を配合することが行わ
れている。<Problems to be Solved by Conventional Techniques and Inventions> Conventionally, building materials and interior materials made of synthetic resins, electric wires, and the like have been required to have flame retardancy from the viewpoint of disaster prevention, and in order to cope with it, various The flame retardant is blended.
合成樹脂用の難燃剤としては、現在、ハロゲン系化合
物、アンチモン系化合物が最も多く用いられているが、
近時、燃焼時の合成樹脂の溶融滴下を防止して、溶融樹
脂の滴下による延焼を防ぐ難燃剤として、ホウ酸亜鉛が
注目されている。Currently, halogen compounds and antimony compounds are most often used as flame retardants for synthetic resins.
Recently, zinc borate has been attracting attention as a flame retardant that prevents molten resin from dripping during combustion and prevents fire spread due to dripping of molten resin.
しかし、ホウ酸亜鉛は、成形加工時における合成樹脂
の熱安定性の低下をもたらし、特にポリ塩化ビニル等
の、分子中にハロゲンを含有する樹脂材料に対しては、
その熱安定性を著しく低下させ、いわゆる亜鉛バーニン
グと呼ばれる急激な劣化（黒変並びに脆化）を生じさせ
るという問題がある。However, zinc borate brings about a decrease in the thermal stability of the synthetic resin during the molding process, and particularly for a resin material containing halogen in the molecule such as polyvinyl chloride,
There is a problem that the thermal stability is remarkably lowered, and rapid deterioration (blackening and embrittlement) called so-called zinc burning occurs.
これは、ホウ酸亜鉛中の亜鉛と樹脂中の塩素とが反応
して塩化亜鉛を生じ、この塩化亜鉛が、樹脂の連鎖的な
脱塩化水素反応によるポリエンの生成と、樹脂の炭化と
を促進する１種の触媒として作用することが原因である
と考えられている。This is because zinc in zinc borate reacts with chlorine in the resin to produce zinc chloride, and this zinc chloride promotes polyene formation by the chain dehydrochlorination reaction of the resin and carbonization of the resin. It is believed that the cause is that it acts as one type of catalyst.
この発明は、以上の事情に鑑みてなされたものであっ
て、ホウ酸亜鉛の持つ優れた難燃性を維持しつつ、しか
も、樹脂材料の熱安定性を低下させることのないホウ酸
亜鉛系難燃剤を提供することを目的としている。The present invention has been made in view of the above circumstances, and maintains the excellent flame retardancy of zinc borate, and further, does not reduce the thermal stability of the resin material. The purpose is to provide a flame retardant.
＜課題を解決するための手段＞ 上記課題を解決するための、この発明のホウ酸亜鉛系
難燃剤は、ホウ酸亜鉛を有機酸のバリウム塩、カルシウ
ム塩、マグネシウム塩、アルミニウム塩および鉛塩から
なる群より選ばれた少なくとも１種の有機酸塩で処理し
たことを特徴としている。<Means for Solving the Problems> A zinc borate-based flame retardant of the present invention for solving the above problems is obtained by converting zinc borate from barium salts, calcium salts, magnesium salts, aluminum salts and lead salts of organic acids. It is characterized by being treated with at least one organic acid salt selected from the group consisting of
上記ホウ酸亜鉛系難燃剤は、ホウ酸亜鉛の持つ優れた
難燃性をそのまま有し、しかも。樹脂材料の熱安定性を
低下させることがない。The zinc borate-based flame retardant has the excellent flame retardancy of zinc borate as it is, and yet. It does not deteriorate the thermal stability of the resin material.
ホウ酸亜鉛としては、従来より難燃剤として使用され
ている種々の組成並びに種々の形態のものが使用でき
る。As zinc borate, various compositions and various forms conventionally used as flame retardants can be used.
また、合成樹脂への分散性を向上させて、難燃効果、
合成樹脂の機械的性質、成形品の表面平滑性等を向上さ
せるためには、上記ホウ酸亜鉛として、平均粒径が20μ
ｍ以下の粒子が好ましく用いられる。Also, by improving the dispersibility in synthetic resin, flame retardant effect,
In order to improve the mechanical properties of synthetic resin, surface smoothness of molded products, etc., the above zinc borate has an average particle size of 20μ.
Particles of m or less are preferably used.
ホウ酸亜鉛を処理するための有機酸塩としては、オク
チル酸（カプリル酸）、ラウリン酸、デカン酸、ステア
リン酸、ベヘン酸等の飽和脂肪酸；オレイン酸、リノー
ル酸、リノレン酸等の不飽和脂肪酸；安息香酸、トルイ
ル酸（メチル安息香酸）等の芳香族カルボン酸；フェノ
ール、ノニルフェノール等のフェノール類等、従来公知
の種々の有機酸と、バリウム、カルシウム、マグネシウ
ム、アルミニウムおよび鉛のうちの何れかとの塩類が挙
げられる。これらの有機酸塩は、それぞれ単独で、或い
は２種以上混合して使用することができる。Organic acid salts for treating zinc borate include saturated fatty acids such as octylic acid (caprylic acid), lauric acid, decanoic acid, stearic acid and behenic acid; unsaturated fatty acids such as oleic acid, linoleic acid and linolenic acid. An aromatic carboxylic acid such as benzoic acid or toluic acid (methylbenzoic acid); various conventionally known organic acids such as phenols and phenols such as nonylphenol, and any one of barium, calcium, magnesium, aluminum and lead The salts of. These organic acid salts may be used alone or in admixture of two or more.
また、上記有機酸塩は、ホウ酸亜鉛に対して１〜20重
量％使用することが好ましい。有機酸塩の使用割合が１
重量％未満では所望の熱安定性が得られず、20重量％を
越えると難燃性が低下する虞がある。The organic acid salt is preferably used in an amount of 1 to 20% by weight based on zinc borate. Use ratio of organic acid salt is 1
If it is less than 20% by weight, the desired thermal stability cannot be obtained, and if it exceeds 20% by weight, the flame retardancy may decrease.
上記有機酸塩によるホウ酸亜鉛の処理には、適宜の処
理方法が適用できるが、熱安定性を著しく向上させるに
は、例えば、ヘンシェルミキサー、スーパーミキサー、
ローラーミル、ボールミル等を用いた、いわゆるメカノ
ケミカル的反応を生ずるような摩砕条件下での混合処理
を行うことが好ましい。Appropriate treatment methods can be applied to the treatment of zinc borate with the above organic acid salt, but in order to significantly improve the thermal stability, for example, a Henschel mixer, a super mixer,
It is preferable to carry out a mixing treatment using a roller mill, a ball mill or the like under milling conditions that cause so-called mechanochemical reaction.
上記摩砕条件下で混合処理されたホウ酸亜鉛系難燃剤
においては、処理によりホウ酸亜鉛粒子の表面にまぶさ
れた有機酸塩の微粒子が、主にホウ酸亜鉛粒子の表面で
発生する、前記塩化亜鉛の生成反応を効率良く阻止する
ので、樹脂材料の熱安定性の向上作用に著しい効果があ
るものと考えられる。In the zinc borate-based flame retardant mixed and treated under the above-mentioned grinding conditions, fine particles of the organic acid salt sprinkled on the surface of the zinc borate particles by the treatment are mainly generated on the surface of the zinc borate particles. It is considered that since the reaction for producing zinc chloride is efficiently blocked, it has a remarkable effect on the effect of improving the thermal stability of the resin material.
これに対し、上記有機酸塩とホウ酸亜鉛とを、例えば
Ｖブレンダーやリボンブレンダー等によって単に混合し
ただけでは、ホウ酸亜鉛粒子の表面を有機酸塩で処理す
ることができず、上記有機酸塩とホウ酸亜鉛とを処理せ
ずに樹脂中に配合した場合と同様に、熱安定性の改善効
果が期待できない。On the other hand, the surface of the zinc borate particles cannot be treated with the organic acid salt by simply mixing the organic acid salt and zinc borate with, for example, a V blender or a ribbon blender. Similar to the case where the salt and zinc borate are added to the resin without treatment, the effect of improving thermal stability cannot be expected.
＜実施例＞ 以下、実施例並びに比較例に基づき、この発明を詳細
に説明する。<Example> Hereinafter, the present invention will be described in detail based on Examples and Comparative Examples.
（比較例１） 堺化学工業（株）製未処理ホウ酸亜鉛（商品名:HA−
１）1kgとステアリン酸バリウム50gをＶブレンダーで30
分間混合し試料No.1を得た。(Comparative Example 1) Untreated zinc borate manufactured by Sakai Chemical Industry Co., Ltd. (trade name: HA-
1) 30 kg of 1 kg and 50 g of barium stearate with a V blender
Mixing for minutes gave Sample No. 1.
（比較例２） HA−１ 1kgとステアリン酸カルシウム50gをＶブレン
ダーで30分間混合し試料No.2を得た。(Comparative Example 2) HA-1 (1 kg) and calcium stearate (50 g) were mixed with a V blender for 30 minutes to obtain sample No. 2.
（比較例３） HA−１ 1kgとステアリン酸マグネシウム50gをＶブレ
ンダーで30分間混合し試料No.3を得た。Comparative Example 3 HA-1 (1 kg) and magnesium stearate (50 g) were mixed with a V blender for 30 minutes to obtain sample No. 3.
（比較例４） HA−１ 1kgと水酸化マグネシウム50gをスーパーミキ
サーで10分間混合し試料No.4を得た。(Comparative Example 4) HA-1 (1 kg) and magnesium hydroxide (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 4.
（比較例５） HA−１ 1kgとステアリン酸亜鉛50gをスーパーミキサ
ーで10分間混合し試料No.5を得た。(Comparative Example 5) HA-1 (1 kg) and zinc stearate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 5.
（実施例１） HA−１ 1kgとステアリン酸バリウム50gをスーパーミ
キサーで10分間混合し試料No.6を得た。(Example 1) HA-1 (1 kg) and barium stearate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 6.
（実施例２） HA−１ 1kgとステアリン酸カルシウム50gをスーパー
ミキサーで10分間混合し試料No.7を得た。(Example 2) HA-1 (1 kg) and calcium stearate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 7.
（実施例３） HA−１ 1kgとステアリン酸マグネシウム50gをスーパ
ーミキサーで10分間混合し試料No.8を得た。(Example 3) HA-1 (1 kg) and magnesium stearate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 8.
（実施例４） HA−１ 1kgとステアリン酸アルミニウム50gをスーパ
ーミキサーで10分間混合し試料No.9を得た。(Example 4) HA-1 (1 kg) and aluminum stearate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 9.
（実施例５） HA−１ 1kgとステアリン酸鉛50gをスーパーミキサー
で10分間混合し試料No.10を得た。(Example 5) HA-1 (1 kg) and lead stearate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 10.
（実施例６） HA−１ 1kgとラウリン酸バリウム50gをスーパーミキ
サーで10分間混合し試料No.11を得た。(Example 6) HA-1 (1 kg) and barium laurate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 11.
（実施例７） HA−１ 1kgとオクチル酸カルシウム50gをスーパーミ
キサーで10分間混合し試料No.12を得た。(Example 7) HA-1 (1 kg) and calcium octylate (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 12.
（実施例８） HA−１ 1kgと安息香酸鉛50gをスーパーミキサーで10
分間混合し試料No.13を得た。(Example 8) HA-1 (1 kg) and lead benzoate (50 g) were mixed with a super mixer for 10 times.
After mixing for minutes, Sample No. 13 was obtained.
（実施例９） HA−１ 1kgとノニルフェノールバリウム50gをスーパ
ーミキサーで10分間混合し試料No.14を得た。(Example 9) HA-1 (1 kg) and nonylphenol barium (50 g) were mixed with a super mixer for 10 minutes to obtain sample No. 14.
上記のようにして得られた各試料を用いて、合成樹脂
に配合した場合の熱安定性および難燃性のテストを行っ
た結果を第１表に示した。なお、熱安定性は190℃のオ
ーブン中における黒化（炭化）時間で評価し、難燃性は
酸素指数で評価した。Table 1 shows the results of a test of thermal stability and flame retardancy when compounded with a synthetic resin, using each of the samples obtained as described above. The thermal stability was evaluated by the blackening (carbonization) time in an oven at 190 ° C, and the flame retardancy was evaluated by the oxygen index.
上記第１表の結果より、各実施例は、何れも、比較例
に比べて、難燃性、熱安定性共に優れたものであること
が判明した。 From the results shown in Table 1 above, it was found that each of the examples was superior in flame retardancy and thermal stability to the comparative examples.
＜発明の効果＞ 上記構成からなる、この発明のホウ酸亜鉛系難燃剤に
おいては、ホウ酸亜鉛を有機酸塩で処理することによ
り、ホウ酸亜鉛の持つ優れた難燃性を維持しつつ、しか
も、樹脂材料の熱安定性を低下させることのないものと
なっている。<Effects of the Invention> In the zinc borate-based flame retardant of the present invention having the above-mentioned constitution, by treating zinc borate with an organic acid salt, while maintaining the excellent flame retardancy of zinc borate, Moreover, the thermal stability of the resin material is not deteriorated.
Claims (1)
ウム塩、マグネシウム塩、アルミニウム塩および鉛塩か
らなる群より選ばれた少なくとも１種の有機酸塩で処理
したことを特徴とするホウ酸亜鉛系難燃剤。1. Boric acid obtained by treating zinc borate with at least one organic acid salt selected from the group consisting of barium salts, calcium salts, magnesium salts, aluminum salts and lead salts of organic acids. Zinc-based flame retardant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1088439A JP2543978B2 (en) | 1989-04-07 | 1989-04-07 | Zinc borate flame retardant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1088439A JP2543978B2 (en) | 1989-04-07 | 1989-04-07 | Zinc borate flame retardant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02265992A JPH02265992A (en) | 1990-10-30 |
| JP2543978B2 true JP2543978B2 (en) | 1996-10-16 |
Family
ID=13942832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1088439A Expired - Fee Related JP2543978B2 (en) | 1989-04-07 | 1989-04-07 | Zinc borate flame retardant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543978B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354240A (en) * | 1989-07-21 | 1991-03-08 | Fujikura Ltd | Flame-retarding resin composition |
-
1989
- 1989-04-07 JP JP1088439A patent/JP2543978B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02265992A (en) | 1990-10-30 |
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