JP2022505519A - 難燃性hips材料及びその製造方法 - Google Patents
難燃性hips材料及びその製造方法 Download PDFInfo
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Abstract
Description
HIPS樹脂90~67重量部、臭素系難燃剤10~15重量部、補助難燃剤3~7重量部を成分として含み、
前記補助難燃剤は1,3,5-トリアジン系化合物である。
(ただし、R1、R2、R3は同じであり、それぞれ独立して、-P(C6H5)2、-P(CH3)2、-PH2O4、-PH2O2、-SiH3、--SiCl3、-SiOH2、SiHCl2、-SiHO3、-((CH3)5Si)2O、-NHR、-NR2、-NCH、-NO3、-NH2、-NCO、-N(CH3)又は-N2Clを表す。)
前記抗光熱酸化剤は、アルキル化ヒンダードポリフェノール、ヒンダードモノフェノール、アミン類、亜リン酸エステル類又はヒドロキシベンゾトリアゾールのうちの1種又は複数種の混合物であり、
前記潤滑剤は、脂肪族アミド、脂肪酸又はその塩、白鉱油、シリコーンオイル又はポリシリコーンのうちの1種又は複数種の混合物である。
各成分の原料を所定配合比で高速ミキサーにて3~6分間十分に混合して、混合物を得るステップaと、
精密に計量された供給装置により、押出機スクリューの各部分の温度が170~220℃に制御され、二軸押出機のアスペクト比が30~35、スクリュー回転数が300~800回転/分の二軸押出機に上記混合物を送り、スクリューによりせん断、混合、搬送をしながら、材料を十分に溶融して混合し、その後、押し出して造粒し、乾燥させて難燃性HIPS粒子を得るステップbと、
難燃性HIPS粒子を射出成形機に加えて測定対象のストランドに成形し、射出成形条件として、バレル温度185~220℃、射出成形圧力40~60MPa、流量40~70cm3/sとするステップcと
を含む、上記難燃性HIPS材料の製造方法をさらに提供する。
(1)本発明では、臭素系難燃剤と補助難燃剤を相乗的に配合することにより、臭素系難燃剤の使用量を効果的に低減させ、難燃コストを削減させ、気相と凝集相の複合による難燃機序を利用して、安定的なUL 94(1.5mm)V-0 難燃等級を達成することができる。
(2)本発明による難燃性HIPS材料は、従来の臭素系難燃性HIPSに比べて、低ハロゲン含有量、低ガス量、高いコストパフォーマンスを有し、過量の酸性ガスにより製品の表面にバーンマークが形成されることを回避し、優れた外観性を有し、薄肉製品の分野、たとえばオフィス設備、映画やテレビのマルチメディア、家電製品の分野などに幅広く適用できる。
HIPS 樹脂、PS 350K、台湾国亨公司製、ゴム含有量7~11wt%、メルトフローレート 200℃、5Kg負荷条件下で5~15g/min;
臭素系難燃剤:
デカブロモジフェニルエタン、市販由来;
臭素化エポキシ、市販由来;
臭素代トリアジン、市販由来;
臭化イミン、市販由来;
補助難燃剤1:R1、R2及びR3が同じホスホアルキル基(-P(CH3)2)又はリン酸基(-PH2O4);
補助難燃剤2:R1、R2及びR3が同じシリル基(-SiH3)又はアミン基(-NH2);
潤滑剤:EBS B50、鋭馳化工製;
難燃相乗剤:三酸化アンチモン、益陽銀城鉱産製;
滴下防止剤、5935EF、米国3M社製。
a、各成分の原料を所定配合比で高速ミキサーにて3~6分間十分に混合して、混合物を得た。
b、精密に計量された供給装置により、押出機スクリューの各部分の温度が170~220℃に制御され、二軸押出機のアスペクト比が30~35、スクリュー回転数が300~800回転/分の二軸押出機に上記混合物を送り、スクリューによりせん断、混合、搬送をしながら、材料を十分に溶融して混合し、その後、押し出して造粒し、乾燥させて難燃性HIPS粒子を得た。
c、難燃性HIPS粒子を射出成形機に加えて測定対象のストランドに成形し、射出成形条件として、バレル温度185~220℃、射出成形圧力40~60MPa、流量40~70cm3/sとした。
難燃性HIPS材料の特性を測定し、データを表1に示す。
(ただし、R1、R2、R3は同じであり、それぞれ独立して、-P(C6H5)2、-P(CH3)2、-PH2O4、-PH2O2、-SiH3、-SiCl3、-SiOH2、-SiHCl2、-SiHO3、-((CH3)5Si)2O、-NHR、-NR2、-NCH、-NO3、-NH2、-NCO、-N(CH3)又は-N2Clを表す。)
HIPS 樹脂、PS 350K、台湾国亨公司製、ゴム含有量7~11wt%、メルトフローレート 200℃、5Kg負荷条件下で5~15g/min;
臭素系難燃剤:
デカブロモジフェニルエタン、市販由来;
臭素化エポキシ、市販由来;
臭素代トリアジン、市販由来;
臭化イミン、市販由来;
補助難燃剤1:R1、R2及びR3が同じホスホアルキル基(-P(CH3)2)又はリン酸基(-PH2O4);
補助難燃剤2:R1、R2及びR3が同じシリル基(-SiH 3 )又はアミン基(-NH2);
潤滑剤:EBS B50、鋭馳化工製;
難燃相乗剤:三酸化アンチモン、益陽銀城鉱産製;
滴下防止剤、5935EF、米国3M社製。
Claims (11)
- 前記HIPS樹脂は、ブタジエン-スチレングラフト共重合体であり、HIPS樹脂の全重量に対して、ゴム含有量が7~11wt%である、ことを特徴とする請求項1に記載の難燃性HIPS材料。
- 前記HIPS樹脂のメルトフローレートは、200℃、5Kgの負荷条件下で5~15g/minである、ことを特徴とする請求項1に記載の難燃性HIPS材料。
- 前記臭素系難燃剤は、デカブロモジフェニルエタン、臭素化エポキシ、テトラブロモビスフェノール A、トリス(トリブロモフェノキシ)トリアジン、2,2-ビス[3,5-ジブロモ-4-(2,3-ジブロモプロポキシ)フェニル]プロパン又は臭化イミンのうちの1種又は複数種の混合物である、ことを特徴とする請求項1に記載の難燃性HIPS材料。
- アンチモン系難燃相乗剤1~7重量部、滴下防止剤0.01~2重量部、加工助剤0~2重量部をさらに含む、ことを特徴とする請求項1に記載の難燃性HIPS材料。
- 前記アンチモン系難燃相乗剤は、三酸化アンチモン、五酸化アンチモン、アンチモン酸ナトリウム又は亜リン酸アンチモンのうちの1種又は複数種であり、前記滴下防止剤は、パーフルオロポリオレフィン又はスチレン-アクリロニトリル被覆パーフルオロポリオレフィンであり、前記加工助剤は、酸化防止剤、潤滑剤又は抗光熱酸化剤のうちの1種又は複数種である、ことを特徴とする請求項5に記載の難燃性HIPS材料。
- 難燃性HIPS材料の全重量に対して、リン元素の重量含有量が30ppm~3000ppmである、ことを特徴とする請求項1~6のいずれか1項に記載の難燃性HIPS材料。
- 難燃性HIPS材料の全重量に対して、窒素元素の重量含有量が500ppm~50000ppmである、ことを特徴とする請求項1~6のいずれか1項に記載の難燃性HIPS材料。
- 前記リン元素の重量含有量の測定方法において、測定試料粒子0.4g~0.6gを丸底フラスコに投入し、濃H2SO4 10mlとH2O2 5mlを加えて、480℃の電気加熱プレートにおいて完全に炭化するまで35min~45min溶融し、炭化終了後、5min冷却した後、適量のH2O2を加えて、完全に炭化したか否かを判断し、完全に炭化していない場合、完全に炭化するまでH2O2を加え続け、その後、100mlメスフラスコにて冷却して定容し、濾過して、遠心分離して上澄み液を取り、その後、誘導結合プラズマ発光分析ICPを行う、ことを特徴とする請求項7に記載の難燃性HIPS材料。
- 前記窒素元素の重量含有量の測定方法において、ケルダール法を用いて、濃度が適切なタンパク質溶液1.0mLをフラスコに加え、分析試料をフラスコの底部に加え、硫酸カリウム-硫酸銅0.3g、濃硫酸2.0mL、30%過酸化水素1.0Mlを順次加えて、フラスコ内の物質が炭化して黒くなるまで弱火で加熱して沸騰させ、無機窒素標準試料の蒸留吸収、測定試料及び空白試料の蒸留吸収を行い、試料処理後、酸式マイクロビュレットを用いて0.0100mol/Lの標準塩酸溶液で滴定し、滴定ごとに使用される標準塩酸溶液のミリリットル数を記録し、最後に、測定試料の窒素元素含有量を算出する、ことを特徴とする請求項8に記載の難燃性HIPS材料。
- 各成分の原料を所定配合比で高速ミキサーにて3~6分間十分に混合して、混合物を得るステップaと、
精密に計量された供給装置により、押出機スクリューの各部分の温度が170~220℃に制御され、二軸押出機のアスペクト比が30~35、スクリュー回転数が300~800回転/分の二軸押出機に上記混合物を送り、スクリューによりせん断、混合、搬送をしながら、材料を十分に溶融して混合し、その後、押し出して造粒し、乾燥させて難燃性HIPS粒子を得るステップbと、
難燃性HIPS粒子を射出成形機に加えて測定対象のストランドに成形し、射出成形条件として、バレル温度185~220℃、射出成形圧力40~60MPa、速度40~70cm3/sとするステップcと
を含む、ことを特徴とする請求項1~10のいずれか1項に記載の難燃性HIPS材料の製造方法。
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