JP2677236B2 - Flame retardant polyamide resin composition - Google Patents
Flame retardant polyamide resin compositionInfo
- Publication number
- JP2677236B2 JP2677236B2 JP7075206A JP7520695A JP2677236B2 JP 2677236 B2 JP2677236 B2 JP 2677236B2 JP 7075206 A JP7075206 A JP 7075206A JP 7520695 A JP7520695 A JP 7520695A JP 2677236 B2 JP2677236 B2 JP 2677236B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- polyamide resin
- resin composition
- flame retardant
- parts
- 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
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Description
【０００１】[0001]
【産業上の利用分野】本発明は難燃性ポリアミド樹脂組
成物に関するものであり、さらに詳しくは難燃剤として
有機ハロゲン化合物を用いる難燃ポリアミドにおいて、
溶融成形時の分解、発泡、着色などの劣化を抑制した、
耐熱安定性良好な難燃性ポリアミド樹脂組成物に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flame-retardant polyamide resin composition, and more specifically, in a flame-retardant polyamide using an organic halogen compound as a flame retardant,
Suppressed degradation such as decomposition, foaming, and coloring during melt molding,
The present invention relates to a flame-retardant polyamide resin composition having good heat resistance stability.
【０００２】[0002]
【従来の技術】ポリアミド樹脂は機械的特性、成形加工
性、耐薬品性が良好であることを利して、自動車部品、
電気・電子部品、機械部品など種々の分野で使用されて
おり、このうち電気・電子部品用途においては、難燃性
に対する要求が強く、本来自己消火性であるポリアミド
樹脂にもさらに高度な難燃性を付与することが必要であ
る。ポリアミド樹脂に難燃性を付与する目的で有機ハロ
ゲン系難燃剤を添加することは公知であり、例えばポリ
アミド樹脂にデカブロモビフェニルエーテルを添加する
方法（特開昭４７−７１３４号公報）、塩素置換多環式
化合物を添加する方法（特開昭４８−２９８４６号公
報）、臭素化ポリスチレンを添加する方法（特開昭５１
−４７０４４号公報、特開昭６１−１８８４６３号公
報）、臭素化ポリフェニレンエーテルを添加する方法
（特公昭５６−２１００号公報）などが提案されてお
り、特に高分子量タイプの臭素化ポリスチレン、臭素化
ポリフェニレンエーテルは難燃剤のブリードアウトなど
の問題が少なく、耐熱安定性も優れていることから、ポ
リアミド樹脂の難燃剤として好適に用いられている。2. Description of the Related Art Polyamide resins are advantageous in that they have good mechanical properties, molding processability and chemical resistance.
It is used in various fields such as electric / electronic parts and mechanical parts. Among them, in the use of electric / electronic parts, there is a strong demand for flame retardancy, and even polyamide resins that are inherently self-extinguishing have higher flame retardancy. It is necessary to impart sex. It is known to add an organic halogen-based flame retardant for the purpose of imparting flame retardancy to a polyamide resin, for example, a method of adding decabromobiphenyl ether to a polyamide resin (JP-A 47-7134), chlorine substitution. A method of adding a polycyclic compound (JP-A-48-29846) and a method of adding brominated polystyrene (JP-A-51).
-47044, JP-A-61-188463), a method of adding a brominated polyphenylene ether (JP-B-56-2100), and the like have been proposed. Particularly, high molecular weight type brominated polystyrene and brominated Since polyphenylene ether has few problems such as bleed-out of flame retardant and excellent heat resistance stability, it is preferably used as a flame retardant for polyamide resins.
【０００３】しかし、従来技術のうちでは比較的耐熱安
定性の良好な臭素化ポリスチレン、臭素化ポリフェニレ
ンエーテルを使用しても、ヘキサメチレンアジパミド／
ヘキサメチレンテレフタルアミド共重合体（以下ナイロ
ン６６／６Ｔと略する）を主成分とするポリアミドのご
とき高融点のポリアミド樹脂がマトリックスになる場合
にはその溶融成形温度が高いために、難燃剤混練時ある
いは成形時に難燃剤の部分的分解によるものと思われる
異臭ガスの発生、発泡、樹脂の着色などが生起するとい
う問題点がある。このような分解物にはハロゲンおよび
ハロゲン化合物が含有されていると考えられ、樹脂に与
える悪影響の他に、成形機、金型を腐食させやすいなど
装置面にも重大な影響を与えるものであり、ハロゲン系
難燃剤含有ポリアミド樹脂組成物の安定化方法が強く望
まれている。However, even if brominated polystyrene or brominated polyphenylene ether having relatively good heat resistance is used in the prior art, hexamethylene adipamide /
When a high melting point polyamide resin such as a polyamide containing a hexamethylene terephthalamide copolymer (hereinafter abbreviated as nylon 66 / 6T) as a main component serves as a matrix, its melt molding temperature is high. Alternatively, there is a problem that generation of offensive odor gas, foaming, and coloring of resin, which are considered to be caused by partial decomposition of the flame retardant, occurs during molding. Such degradation products are considered halogen and halogen compound is contained, but provide other adverse effect on the resin, forming shapes machine, also significant impact on system surfaces such as tends to corrode the mold Therefore, a method for stabilizing a halogen-based flame retardant-containing polyamide resin composition is strongly desired.
【０００４】そこで本発明者らは、溶融成形時にガス発
生、発泡、着色などの劣化のない耐熱安定性に優れたハ
ロゲン系難燃剤含有ポリアミド樹脂組成物を得るべく検
討した結果、特定の高分子量タイプのハロゲン系難燃
剤、助剤および特定のマグネシウム系無機化合物を組合
せることにより上記目的が一挙に達成されることを見出
し、本発明に到達した。Therefore, the present inventors have studied to obtain a polyamide resin composition containing a halogen-based flame retardant which is excellent in heat resistance and free from deterioration such as gas generation, foaming and coloring during melt molding, and as a result, a specific high molecular weight was obtained. The inventors have found that the above objects can be achieved all at once by combining a halogen-based flame retardant of a type, an auxiliary agent, and a specific magnesium-based inorganic compound, and arrived at the present invention.
【０００５】すなわち本発明は、「(A) (a) ヘキサメチ
レンアジパミド／ヘキサメチレンテレフタルアミド共重
合体を主成分とするポリアミド樹脂３０〜８９重量％、
(b)繊維状無機質補強材０〜５０重量％、(C) ハロゲン
含有率５０〜７０重量％、重量平均分子量５，０００以
上のハロゲン化ポリスチレン１０〜３５重量％および
(d) 酸化アンチモン、酸化スズ、酸化鉄、酸化亜鉛の中
から選ばれた少なくとも１種の難燃助剤１〜１０重量％
よりなるポリアミド樹脂組成物１００重量部に(B) 下記
一般式(I)または(II)で示されるハイドロタルサイト類
および／またはマグネシウム・アルミニウム含有無機化
合物０．０１〜１０重量部を添加してなることを特徴と
する難燃性ポリアミド樹脂組成物」を提供するものであ
る。 Ｍｇ1-x Ａｌx （ＯＨ）2 （ＣＯ 3 ）x/2 ・ｍＨ2 Ｏ （Ｉ） Ｍｇ1-y Ａｌy Ｏ1+y/2 （II） （ここで０＜ｘ＜０．４、０＜ｙ＜０．５、ｍは０また
は正の整数を表す。）That is, the present invention relates to "(A) (a) 30 to 89% by weight of a polyamide resin containing a hexamethylene adipamide / hexamethylene terephthalamide copolymer as a main component,
(b) 0 to 50% by weight of fibrous inorganic reinforcing material, (C) 50 to 70% by weight of halogen content, 10 to 35% by weight of halogenated polystyrene having a weight average molecular weight of 5,000 or more, and
(d) 1 to 10% by weight of at least one flame retardant aid selected from antimony oxide, tin oxide, iron oxide and zinc oxide
To 100 parts by weight of a polyamide resin composition consisting of (B) 0.01 to 10 parts by weight of a hydrotalcite compound represented by the following general formula (I) or (II) and / or a magnesium-aluminum-containing inorganic compound is added. The present invention provides a flame-retardant polyamide resin composition. Mg 1-x Al x (OH) 2 (CO 3 ) x / 2 · mH 2 O (I) Mg 1-y Al y O 1 + y / 2 (II) (where 0 <x <0.4, 0 <y <0.5, m represents 0 or a positive integer.)
【０００６】本発明で用いられる(a) 成分のポリアミド
は、ポリヘキサメチレンアジパミド／ヘキサメチレンテ
レフタルアミド共重合体（ナイロン６６／６Ｔ）を主成
分とするポリアミドであり、ナイロン６６／６Ｔの共重
合比率は重量比で９５／５〜２０／８０の範囲のものが
好ましく用いられ、さらに９０／１０〜３０／７０のも
のが好ましい。The polyamide as the component (a) used in the present invention is a polyamide whose main component is a polyhexamethylene adipamide / hexamethylene terephthalamide copolymer (nylon 66 / 6T). The copolymerization ratio is preferably in the range of 95/5 to 20/80 by weight, and more preferably 90/10 to 30/70.
【０００７】ここで用いられるポリアミドの重合度につ
いては特に制限なく、１％濃硫酸溶液の２５℃における
相対粘度が１．５〜５．０の範囲内にあるものを任意に
用いることができる。The degree of polymerization of the polyamide used here is not particularly limited, and one having a relative viscosity of a 1% concentrated sulfuric acid solution at 25 ° C. within the range of 1.5 to 5.0 can be arbitrarily used.
【０００８】本発明で用いられる(b) 成分の繊維状無機
質補強材の具体例としては、ガラス繊維、炭素繊維、ス
テンレス繊維、チタン酸カリウムウイスカーなどを挙げ
ることができる。これら補強材の配合量は５０％以下で
あり、配合量が５０％を越えると、生成する樹脂組成物
の流動性が極端に低下するので好ましくない。本発明で
用いられる(c) 成分の臭素化ポリスチレンの難燃剤とは
次式（III ）で示される、臭素含有率５０〜７０％、重
量平均分子量５，０００以上の臭素化ポリスチレンであ
る。Specific examples of the fibrous inorganic reinforcing material of the component (b) used in the present invention include glass fiber, carbon fiber, stainless fiber, potassium titanate whiskers and the like. The content of these reinforcing materials is 50% or less, and if the content exceeds 50%, the fluidity of the resulting resin composition is extremely lowered, which is not preferable. The flame retardant brominated polystyrene (c) component used in the present invention represented by the following formula (III), bromine content 50% to 70%, a weight average molecular weight of 5,000 or more odor iodinated polystyrene.
【化１】 （ここでｍは３０〜１５００の整数を表す。）Embedded image (Here, m represents an integer of 30 to 1500.)
【０００９】上記臭素化ポリスチレンの添加量は、
（Ａ）ポリアミド樹脂組成物中において、１０〜３５重
量％、好ましくは１５〜３０重量％である。添加量が１
０重量％に満たないと難燃化効果が不十分なので好まし
くなく、添加量が３５重量％を越えると樹脂組成物の耐
衝撃性低下など機械性質低下が顕在化するので好ましく
ない。The amount of the brominated polystyrene added is
In the polyamide resin composition (A), the amount is 10 to 35% by weight, preferably 15 to 30% by weight. Addition amount is 1
If it is less than 0% by weight, the flame retarding effect is insufficient, which is not preferable.
【００１０】本発明で(d) 成分として用いられる難燃助
剤は三酸化アンチモン、酸化亜鉛、酸化第１鉄、酸化第
２鉄、酸化第１スズおよび酸化第２スズの中から選ば
れ、これらは各々単独または２種以上の混合物の形で用
いることができる。難燃助剤の配合量は（Ａ）ポリアミ
ド樹脂組成物中において、１〜１５重量％、好ましくは
３〜１０重量％である。難燃助剤の配合量が１重量％に
満たないと難燃性が不足するので好ましくなく、一方１
５重量％を越えると耐衝撃性が低下するので好ましくな
い。The flame retardant auxiliary used as the component (d) in the present invention is selected from antimony trioxide, zinc oxide, ferrous oxide, ferric oxide, stannous oxide and stannic oxide, These may be used alone or in the form of a mixture of two or more kinds. The blending amount of the flame retardant aid is 1 to 15% by weight, preferably 3 to 10% by weight in the polyamide resin composition (A). If the content of the flame retardant aid is less than 1% by weight, the flame retardancy will be insufficient, which is not preferable.
If it exceeds 5% by weight, impact resistance is lowered, which is not preferable.
【００１１】本発明で(B) 成分として用いられるハイド
ロタルサイトとは、前記一般式（Ｉ）で示される複合金
属化合物であり、ＢＥＴ比表面積が１〜２５ｍ2 ／ｇ、
好ましくは２〜２０ｍ2 ／ｇで、平均粒径が５μｍ以
下、好ましくは３μｍ以下のものである。The hydrotalcite used as the component (B) in the present invention is a composite metal compound represented by the above general formula (I) and has a BET specific surface area of 1 to 25 m 2 / g.
It is preferably 2 to 20 m 2 / g and has an average particle size of 5 μm or less, preferably 3 μm or less.
【００１２】また同じく(B) 成分として用いられるマグ
ネシウム・アルミニウム含有無機化合物とは、前記一般
式（II）で示される金属酸化物であり、上記ハイドロタ
ルサイト類を焼成することにより得られるものである。
(B) 成分の金属化合物は、臭素化合物を含む難燃剤の分
解生成物を有効に捕捉するものと思われ、(B) 成分の添
加により、臭素系難燃剤含有ポリアミド樹脂組成物の成
形時のガス発生、発泡、着色は著しく低減される。(B)
成分の金属化合物の添加量は、(A) 成分のポリアミド樹
脂組成物１００重量部に対して０．０１〜１０重量部、
好ましくは０．０５〜８重量部である。添加量が０．０
１重量部に満たない場合は耐熱性向上効果が不足するの
で好ましくなく、添加量が１０重量部を越えてもやはり
それ以上の向上効果はない。The magnesium / aluminum-containing inorganic compound used as the component (B) is a metal oxide represented by the general formula (II) and is obtained by firing the hydrotalcites. is there.
The metal compound of the component (B) is considered to effectively capture the decomposition products of the flame retardant containing the bromine compound. Gas generation, foaming and coloring are significantly reduced. (B)
The addition amount of the metal compound as the component is 0.01 to 10 parts by weight based on 100 parts by weight of the polyamide resin composition as the component (A),
It is preferably 0.05 to 8 parts by weight. 0.0
If the amount is less than 1 part by weight, the heat resistance improving effect is insufficient, which is not preferable, and even if the addition amount exceeds 10 parts by weight, there is no further improvement effect.
【００１３】本発明の樹脂組成物の製造方法は特に限定
されないが、ポリアミド樹脂、補強材、難燃剤、難燃助
剤および金属化合物の混合物を単軸または２軸の押出
機、バンバリーミキサー、ニーダー、ミキシングロール
など通常公知の溶融混練機を用いて２００〜３５０℃、
望ましくは２６０〜３５０℃の温度で溶融混練する方法
などを例として挙げることができ、特に押出機を用いて
溶融混練する方法が簡便で効率的である。また溶融混練
の順序も特に限定されず、上記の所定の５成分の混合物
を一括混練してもよく、あらかじめポリアミドと他の成
分のうちいくつかを溶融混練した後、残りの成分を混練
する方法を採ってもよい。The method for producing the resin composition of the present invention is not particularly limited, but a mixture of a polyamide resin, a reinforcing material, a flame retardant, a flame retardant aid and a metal compound is used as a single-screw or twin-screw extruder, a Banbury mixer, a kneader. , 200 to 350 ° C. using a commonly known melt kneader such as a mixing roll,
Desirably, a method of melt-kneading at a temperature of 260 to 350 ° C. can be mentioned as an example, and in particular, a method of melt-kneading using an extruder is simple and efficient. The order of melt-kneading is not particularly limited, and a mixture of the above-mentioned predetermined five components may be kneaded together, or a method in which the polyamide and some of the other components are melt-kneaded in advance and then the remaining components are kneaded. May be taken.
【００１４】以下に実施例を挙げて本発明をさらに詳し
く説明する。なお実施例および比較例に記した諸特性は
次の方法により評価した。 (1) 耐熱安定性：理学電気（株）製８０９５Ｂ１型加熱
重量分析装置を用い、昇温速度２０℃／分の条件下で加
熱減量を測定し、１０％減量となる温度を求め耐熱性の
目安とした。 (2) 引張特性：ＡＳＴＭ Ｄ６３８ (3) 曲げ特性：ＡＳＴＭ Ｄ７９０ (4) アイゾット衝撃強度：ＡＳＴＭ Ｄ２５６ (5) 燃焼性：長さ５インチ、幅１／２インチ、厚さ１／
８、１／１６、１／３２インチの試験片を成形し、米国
ＵＮＤＥＲＷＲＩＴＥＲＳ ＬＡＢＯＲＡＴＯＲＩＥＳ
で定められたＵＬ−９４の規格に従って測定した。The present invention will be described in more detail with reference to the following examples. Various properties described in Examples and Comparative Examples were evaluated by the following methods. (1) Heat resistance stability: Using the 8095B1 type thermogravimetric analyzer manufactured by Rigaku Denki Co., Ltd., the weight loss on heating was measured under the conditions of a heating rate of 20 ° C./min, and the temperature at which the weight loss was 10% was calculated to obtain the heat resistance. I used it as a guide. (2) Tensile properties: ASTM D638 (3) Bending properties: ASTM D790 (4) Izod impact strength: ASTM D256 (5) Flammability: length 5 inches, width 1/2 inch, thickness 1 /
Molded 8, 1/16, 1/32 inch specimens and made in UNDE RW RITERS LABORATORIES
It was measured according to the UL-94 standard defined in.
【００１５】実施例１ １％硫酸相対粘度２．６０のナイロン６６／６Ｔ（７０
／３０重量％比）共重合体７４重量部、フェロー社製臭
素化ポリスチレン（“パイロチェック”６８ＰＢ）２１
重量部、三酸化アンチモン５重量部およびＭｇ 0.7 Ａｌ
0.3 Ｏ 1.15 なる組成でＢＥＴ比表面積１８ｍ2 ／ｇなる
ハイドロタルサイト０．２重量部をヘンシェルミキサー
で混合し、この混合物を池貝（株）製ＰＣＭ３０ ２軸
押出機のポッパーに供給し、シリンダー温度３００℃、
スクリュー回転数２００rpm の条件で溶融混練し、スト
ランドを冷却後ペレタイザーでペレタイズした。ここで
得られたペレットを１００℃、真空下で２４時間乾燥し
た後、加熱重量分析により耐熱性を測定したところ、第
１表に示すように高い分解温度を有しており、耐熱性の
優れた樹脂組成物であることが判明した。また乾燥ペレ
ットを用いて、成形機シリンダー温度３００℃、金型温
度８０℃の条件で射出成形を行ったところ、ガス発生、
発泡、着色などのトラブルなく表面外観良好な各種試験
片が得られた。試験片の諸特性は第１表に示すとおりで
あり、難燃性と良好な機械物性を兼ね備えた実用価値の
高いものであった。Example 1 Nylon 66 / 6T (70% 70% relative viscosity 1% sulfuric acid 2.60)
74% by weight of copolymer, brominated polystyrene (“Pyrocheck” 68PB) 21 manufactured by Fellow Co., Ltd.
Parts by weight, 5 parts by weight of antimony trioxide and Mg 0.7 Al
0.2 parts by weight of hydrotalcite having a composition of 0.3 O 1.15 and a BET specific surface area of 18 m 2 / g was mixed with a Henschel mixer, and this mixture was supplied to a popper of a PCM30 twin-screw extruder manufactured by Ikegai Co., Ltd., and a cylinder temperature was 300. ℃,
Melt kneading was carried out under the condition that the screw rotation speed was 200 rpm, and the strand was cooled and pelletized by a pelletizer. The pellets obtained here were dried at 100 ° C. under vacuum for 24 hours, and the heat resistance was measured by thermogravimetric analysis. As a result, they had a high decomposition temperature as shown in Table 1 and were excellent in heat resistance. It was found to be a resin composition. In addition, when injection molding was performed using the dried pellets at a molding machine cylinder temperature of 300 ° C. and a mold temperature of 80 ° C., gas generation,
Various test pieces having a good surface appearance were obtained without troubles such as foaming and coloring. The various properties of the test piece are as shown in Table 1, and were of high practical value having both flame retardancy and good mechanical properties.
【００１６】比較例１ （ハイドロタルサイトを添加し
ない例） １％硫酸相対粘度２．９０のナイロン６６（表１ではＮ
−６６と記載）７４重量部、フェロー社製臭素化ポリス
チレン（“パイロチェック”６８ＰＢ）２１重量部およ
び三酸化アンチモン５重量部をヘンシェルミキサーで混
合し、この混合物を池貝（株）製ＰＣＭ３０ ２軸押出
機のホッパーに供給し、シリンダー温度２８０℃、スク
リュー回転数２００rpm の条件で溶融混練し、ストラン
ドを冷却後ペレタイザーでペレタイズした。ここで得ら
れたペレットを１００℃、真空下で２４時間乾燥した
後、加熱重量分析により耐熱性を測定した。また乾燥ペ
レットを用いて、成形機シリンダー温度２８０℃、金型
温度８０℃の条件で射出成形を行い、さらに実施例１と
同様の評価を行なった。Comparative Example 1 (Example in which no hydrotalcite was added) Nylon 66 with 1% sulfuric acid relative viscosity 2.90 (N in Table 1
-66) 74 parts by weight, 21 parts by weight of brominated polystyrene ("Pyrocheck" 68PB) manufactured by Fellow, and
Beauty antimony trioxide 5 parts by weight in a Henschel mixer, the mixture was supplied to Ho wrapper of Ikegai, Ltd. PCM 30 2-screw extruder at a cylinder temperature of 280 ° C., and melt-kneaded under conditions of a screw rotation speed of 200 rpm, After cooling the strand, it was pelletized with a pelletizer. The pellets obtained here were dried at 100 ° C. under vacuum for 24 hours, and then heat resistance was measured by thermogravimetric analysis. Further, injection molding was performed using the dried pellets under the conditions of a molding machine cylinder temperature of 280 ° C. and a mold temperature of 80 ° C., and the same evaluation as in Example 1 was performed.
【００１７】このものは成形時にシリンダー先端からの
ガス発生、試験片の着色などが起こり、安定した成形が
できなかった。また諸物性は表１に示すとおり、分解温
度が低く耐熱性が不十分であり、機械特性の低下もあ
り、実用に耐えないものであった。比較例２（ハイドロタルサイトを添加しない例） Ｍｇ 0.7 Ａｌ 0.3 Ｏ 1.15 を配合しない以外は実施例１と
同様にペレット作成およびその評価を行った。組成およ
び評価結果を表１に示す。 比較例３ ＳＢ 2 Ｏ 3 に代えてＮａＳｂＯ 3 を使用した以外は実
施例と同様にペレット作成およびその評価を行った。組
成および評価結果を表１に示す。 With this product, stable molding could not be carried out due to gas generation from the tip of the cylinder and coloring of the test piece during molding. As for physical properties, as shown in Table 1, the decomposition temperature was low, the heat resistance was insufficient, and the mechanical properties were deteriorated, so that it was not practical. Comparative Example 2 (Example in which no hydrotalcite was added) Example 1 except that Mg 0.7 Al 0.3 O 1.15 was not added.
Similarly, pellets were produced and evaluated. Composition and
And the evaluation results are shown in Table 1. Comparative Example 3 Except that NaSbO 3 was used instead of SB 2 O 3.
Pellets were prepared and evaluated in the same manner as in the examples. set
The results of evaluation and evaluation are shown in Table 1.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】本発明のようにナイロン６６／６Ｔを主
成分とするポリアミド、補強材、難燃材、難燃助剤から
なる臭素系難燃剤含有ポリアミド樹脂組成物に特定のハ
イドロタルサイト類またはマグネシウム・アルミニウム
化合物を添加することにより、成形時に難燃剤の部分的
分解に原因して発生するガス発生、発泡、着色などのト
ラブルを効果的に抑制し、耐熱性の良好な難燃性ポリア
ミド樹脂組成物を得ることが可能になった。EFFECT OF THE INVENTION Hydrotalcites specific to a polyamide resin composition containing a brominated flame retardant comprising a polyamide containing nylon 66 / 6T as a main component, a reinforcing material, a flame retardant, and a flame retardant auxiliary as in the present invention. Alternatively, by adding a magnesium / aluminum compound, it is possible to effectively suppress problems such as gas generation, foaming, and coloring that occur due to partial decomposition of the flame retardant during molding, and a flame-retardant polyamide having good heat resistance. It has become possible to obtain a resin composition.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０８Ｌ 25:18） (56)参考文献 特開 昭63−260951（ＪＰ，Ａ) 特開 昭61−283653（ＪＰ，Ａ) 特開 昭62−267342（ＪＰ，Ａ) 特開 昭62−135547（ＪＰ，Ａ)─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display part C08L 25:18) (56) References JP 63-260951 (JP, A) JP 61 -283653 (JP, A) JP 62-267342 (JP, A) JP 62-135547 (JP, A)
Claims (1)
サメチレンテレフタルアミド共重合体を主成分とするポ
リアミド樹脂３０〜８９重量％、(b) 繊維状無機質補強
材０〜５０重量％、(C) ハロゲン含有率５０〜７０重量
％、重量平均分子量５，０００以上のハロゲン化ポリス
チレン１０〜３５重量％および(d) 酸化アンチモン、酸
化スズ、酸化鉄、酸化亜鉛の中から選ばれた少なくとも
１種の難燃助剤１〜１０重量％よりなるポリアミド樹脂
組成物１００重量部に (B) 下記一般式(I)または(II)で示されるハイドロタル
サイト類および／またはマグネシウム・アルミニウム含
有無機化合物０．０１〜１０重量部を添加してなること
を特徴とする難燃性ポリアミド樹脂組成物。 Ｍｇ1 -xＡｌx （ＯＨ）2 （ＣＯ 3 ）x/2 ・ｍＨ2 Ｏ （Ｉ） Ｍｇ1-y Ａｌy Ｏ1+y/2 （II） （ここで０＜ｘ＜０．４、０＜ｙ＜０．５、ｍは０また
は正の整数を表す。）1. A polyamide resin containing (A) (a) a hexamethylene adipamide / hexamethylene terephthalamide copolymer as a main component in an amount of 30 to 89% by weight, and (b) a fibrous inorganic reinforcing material in an amount of 0 to 50% by weight. , (C) halogen content 50 to 70% by weight, halogenated polystyrene having a weight average molecular weight of 5,000 or more 10 to 35% by weight, and (d) antimony oxide, tin oxide, iron oxide, zinc oxide. 100 parts by weight of a polyamide resin composition containing 1 to 10% by weight of at least one flame retardant aid (B) containing hydrotalcites represented by the following general formula (I) or (II) and / or magnesium aluminum A flame-retardant polyamide resin composition comprising 0.01 to 10 parts by weight of an inorganic compound. Mg 1-x Al x (OH) 2 (CO 3 ) x / 2 · mH 2 O (I) Mg 1-y Al y O 1 + y / 2 (II) (where 0 <x <0.4, 0 <y <0.5, m represents 0 or a positive integer.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075206A JP2677236B2 (en) | 1995-03-31 | 1995-03-31 | Flame retardant polyamide resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075206A JP2677236B2 (en) | 1995-03-31 | 1995-03-31 | Flame retardant polyamide resin composition |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63294894A Division JP2582878B2 (en) | 1988-11-22 | 1988-11-22 | Flame retardant polyamide resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0853618A JPH0853618A (en) | 1996-02-27 |
| JP2677236B2 true JP2677236B2 (en) | 1997-11-17 |
Family
ID=13569499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7075206A Expired - Fee Related JP2677236B2 (en) | 1995-03-31 | 1995-03-31 | Flame retardant polyamide resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2677236B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111849152B (en) * | 2020-06-29 | 2022-02-18 | 金发科技股份有限公司 | Polyamide composite material and preparation method and application thereof |
| CN111875957A (en) * | 2020-06-29 | 2020-11-03 | 金发科技股份有限公司 | Polyamide composition and preparation method and application thereof |
| CN113801429B (en) * | 2021-08-30 | 2024-02-02 | 万华化学(四川)有限公司 | Impact-resistant heat-resistant flame-retardant ABS resin and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61283653A (en) * | 1985-06-11 | 1986-12-13 | Sumitomo Chem Co Ltd | Resin composition |
| JPH07103309B2 (en) * | 1987-04-20 | 1995-11-08 | 三井石油化学工業株式会社 | Polyamide composition |
-
1995
- 1995-03-31 JP JP7075206A patent/JP2677236B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0853618A (en) | 1996-02-27 |
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