JP2014530929A - 接着促進剤を含有するポリ(メタ)アクリルイミド系膨張コポリマーの製造法 - Google Patents
接着促進剤を含有するポリ(メタ)アクリルイミド系膨張コポリマーの製造法 Download PDFInfo
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- JP2014530929A JP2014530929A JP2014536166A JP2014536166A JP2014530929A JP 2014530929 A JP2014530929 A JP 2014530929A JP 2014536166 A JP2014536166 A JP 2014536166A JP 2014536166 A JP2014536166 A JP 2014536166A JP 2014530929 A JP2014530929 A JP 2014530929A
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- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- AGZPNUZBDCYTBB-UHFFFAOYSA-N triethyl methanetricarboxylate Chemical compound CCOC(=O)C(C(=O)OCC)C(=O)OCC AGZPNUZBDCYTBB-UHFFFAOYSA-N 0.000 description 1
- BNOIMFITGLLJTH-UHFFFAOYSA-N trimethyl methanetricarboxylate Chemical compound COC(=O)C(C(=O)OC)C(=O)OC BNOIMFITGLLJTH-UHFFFAOYSA-N 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
− ポリ(メタ)アクリルイミドからのプラスチック成形体を粉砕する工程、
− 前の工程で得られた粉砕物を接着促進剤で被覆する工程、
− 被覆された粉砕物を金型に充填する工程、
− 任意に助剤を添加する工程、
− 金型を加熱する工程、
− 金型を発泡温度未満に冷却する工程、
− 発泡成形体を離型する工程
を含むことを特徴とする方法により解決された。
− ポリ(メタ)アクリルイミドからのプラスチック成形体を粉砕する工程、
− 前の工程で得られた粉砕物を接着促進剤で被覆する工程、
− 被覆された粉砕物を金型に充填する工程、
− 任意に助剤を添加する工程、
− 金型を加熱する工程、
− 金型を発泡温度未満に冷却する工程、
− 発泡成形体を離型する工程。
− ポリ(メタ)アクリルイミドからのプラスチック成形体を粉砕する工程、
− 粉砕物を予備発泡させる工程、
− 前の工程で得られた粉砕物を接着促進剤で被覆する工程、
− 被覆された粉砕物を金型に充填する工程、
− 任意に助剤を添加する工程、
− 金型を加熱する工程、
− 金型を発泡温度未満に冷却する工程、
− 発泡成形体を離型する工程。
− 粉砕物を接着促進剤と一緒に金型(工具)へ容易に計量供給することができる。
− 接着促進剤が即座に溶融することで、粉砕物を相応する金型の箇所に(例えば斜面に)配置することができる。
− 発泡体コアにおいて、粒界(結合継ぎ目)間の密着力が確立される。
− 発泡体コアに、金型表面の厳密でかつ平滑な像形成が行われる。
− 発泡体コアとカバー層の相応するマトリックス(例えば熱可塑性、熱硬化性又は金属性)との間に、最適化された密着性が確立される。
(メタ)アクリル酸という用語は、メタクリル酸、アクリル酸又はこれら双方からの混合物を指す。(メタ)アクリロニトリルという用語は、メタクリロニトリル、アクリロニトリル又はこれら双方からの混合物を指す。例えばアルキル(メタ)アクリレートという用語についても、同様のことが言える。この用語は、メタクリル酸、アクリル酸又はその双方からの混合物のアルキルエステルを指す。
発泡剤(C)として、以下の化合物又はそれらからの混合物が使用可能である:ホルムアミド、ギ酸、尿素、イタコン酸、クエン酸、ジシアンジアミド、水、モノアルキル尿素、ジメチル尿素、5,5’−アゾ−ビス−5−エチル−1,3−ジオキサン、2,2’−アゾ−ビス−イソ酪酸ブチルアミド、2,2’−アゾ−ビス−イソ酪酸−N−ジエチルアミド、2,2’,4,4,4’,4’−ヘキサメチル−2,2’−アゾペンタン、2,2’−アゾ−ビス−2−メチル−プロパン、ジメチルカーボネート、ジ−tert−ブチルカーボネート、アセトンシアンヒドリンカーボネート、オキシ−イソ酪酸メチルエステル−カーボネート、N−メチルウレタン、N−エチルウレタン、N−tert−ブチルウレタン、ウレタン、シュウ酸、マレイン酸、オキシ−イソ酪酸、マロン酸、シアンホルムアミド、ジメチルマレイン酸、メタンテトラカルボン酸テトラエチルエステル、オキサミド酸−n−ブチルエステル、メタントリカルボン酸トリメチルエステル、メタントリカルボン酸トリエチルエステル、並びに3〜8個の炭素原子からの一価アルコール、例えばプロパノール−1、プロパノール−2、ブタノール−1、ブタノール−2、tert−ブタノール及びイソ−ブタノール。
開始剤として、ラジカル重合可能な化合物及び開始剤系が使用される。公知の化合物クラスは、ペルオキシド、ヒドロペルオキシド、ペルオキソジスルフェート、ペルカーボネート、ペルケタール、ペルオキシエステル、過酸化水素及びアゾ化合物である。開始剤の例は、過酸化水素、ジベンゾイルペルオキシド、ジシクロヘキシルペルオキソジカーボネート、ジラウリルペルオキシド、メチルエチルケトンペルオキシド、アセチルアセトンペルオキシド、ジ−tert−ブチルペルオキシド、tert−ブチルヒドロペルオキシド、クモールヒドロペルオキシド、tert−ブチルペルオクタノエート、tert−ブチルペル−2−エチルヘキサノエート、tert−ブチルペルネオデカノエート、tert−アミルペルピバレート、tert−ブチルペルピバレート、tert−ブチルペルベンゾエート、リチウム−、ナトリウム−、カリウム−及びアンモニウムペルオキソジスルフェート、アゾイソブチロニトリル、2,2−アゾビスイソ−2,4−ジメチルバレロニトリル、2,2−アゾビスイソブチロニトリル、2,2’−アゾ−ビス(2−アミジノプロパン)ジヒドロクロリド、2−(カルバモイルアゾ)イソブチロニトリル、及び4,4’−アゾビス(シアノ吉草酸)である。
1.以下のものからなる組成物のラジカル重合によるポリマーボードの製造:
(a)メタクリル酸とメタクリロニトリルとの合計に対して、メタクリロニトリル20質量%〜60質量%、メタクリル酸80質量%〜40質量%、及び場合により他の単官能性ビニル系不飽和モノマー20質量%まで、
(b)ホルムアミドもしくはモノメチルホルムアミドと、例えばイソプロパノールのような分子中に3〜8個の炭素原子を有する一価の脂肪族アルコールとからの発泡剤混合物0質量%〜15質量%、
(c)以下のものからなる架橋剤系
(c.1)分子中に少なくとも2個の二重結合を有するラジカル重合性ビニル系不飽和化合物0.005質量%〜5質量%、及び
(c.2)モノマー混合物中に溶解した酸化マグネシウム0.1質量%〜5質量%
(d)開始剤系
(e)慣用の添加物。
さらに、混合物に慣用の添加物を添加することができる。好適な量は、モノマー混合物に対して例えば0質量%〜20質量%、0質量%〜10質量%、又は0質量%〜5質量%である。
原則的に、接着促進剤は液体であっても固体であってもよく、固体の接着促進剤同士の混合物、固体の接着促進剤と液体の接着促進剤とからの混合物、及び液体の接着促進剤同士の混合物も使用可能である。
金型内で発泡させた材料の製造
以下のパラメータを全ての発泡工程で用いた:
− 圧力pは、約3〜4MPaであり、金型の固定及び閉鎖に利用した。
− 温度Tは、約240℃〜250℃であった。
− 発泡時間は約1と1/2時間であり、予備発泡させた材料の場合には約30分であった。
圧縮試験をDIN EN ISO 844により行った。
DIN EN ISO 527−2に準拠して、引張試験を行った。
本発明による材料は、同じ密度で、ROHACELL(R) RIMAの圧縮強さの約50%に達する。
プロセス時間を最小化するために、すでに予備発泡させた粉砕物を用いて、金型を完全に発泡させる試験を行った。従って、種々の予備発泡温度、例えば170℃〜190℃、及び種々の予備発泡時間、例えば60分〜90分、並びに、金型内での完全発泡に関して種々の温度、例えば230℃〜250℃、及び種々の時間、例えば10〜40分で試験した。
Claims (12)
- ポリ(メタ)アクリルイミドと接着促進剤もしくは接着促進剤混合物と任意の助剤とから発泡成形体を製造するための一段法において、以下の工程:
− ポリ(メタ)アクリルイミドからのプラスチック成形体を粉砕する工程、
− 前の工程で得られた粉砕物を接着促進剤で被覆する工程、
− 被覆された粉砕物を金型に充填する工程、
− 任意に助剤を添加する工程、
− 金型を加熱する工程、
− 金型を発泡温度未満に冷却する工程、
− 発泡成形体を離型する工程
を含むことを特徴とする方法。 - ポリ(メタ)アクリルイミドと接着促進剤もしくは接着促進剤混合物と任意の助剤とから発泡成形体を製造するための二段法において、以下の工程:
− ポリ(メタ)アクリルイミドからのプラスチック成形体を粉砕する工程、
− 粉砕物を予備発泡させる工程、
− 前の工程で得られた粉砕物を接着促進剤で被覆する工程、
− 被覆された粉砕物を金型に充填する工程、
− 任意に助剤を添加する工程、
− 金型を加熱する工程、
− 金型を発泡温度未満に冷却する工程、
− 発泡成形体を離型する工程
を含むことを特徴とする方法。 - 接着促進剤として、ポリアミドを使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリ(メタ)アクリレートを使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリアミドを粉砕物に対して1質量%〜20質量%の量で使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリアミドを粉砕物に対して1質量%〜15質量%の量で使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリアミドを粉砕物に対して1質量%〜10質量%の量で使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリ(メタ)アクリレートを粉砕物に対して1質量%〜20質量%の量で使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリ(メタ)アクリレートを粉砕物に対して1質量%〜15質量%の量で使用する、請求項1又は2に記載の方法。
- 接着促進剤として、ポリ(メタ)アクリレートを粉砕物に対して1質量%〜10質量%の量で使用する、請求項1又は2に記載の方法。
- 請求項1から10までのいずれか1項に記載の方法により得られる、発泡成形体。
- 宇宙飛行体、航空機、船舶及び地上車両を製造するための、請求項11に記載の発泡成形体の使用。
Applications Claiming Priority (3)
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DE102011085026A DE102011085026A1 (de) | 2011-10-21 | 2011-10-21 | Verfahren zur Herstellung von Korngrenzenhaftung von expandierten Copolymeren auf Basis von Methacryl- und Acrylverbindungen und Anhaftung diverser Deckschichten auf dem Schaumkern |
PCT/EP2012/068885 WO2013056947A1 (de) | 2011-10-21 | 2012-09-25 | Verfahren zur herstellung von expandierten copolymeren auf basis von poly (meth) acrylimid enthaltend einen haftvermittler |
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SG (1) | SG2014008965A (ja) |
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CN106749838B (zh) * | 2016-12-01 | 2020-08-14 | 浩博(福建)新材料科技有限公司 | 一种吸波型聚甲基丙烯酰亚胺泡沫塑料的制备方法 |
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RU2707601C1 (ru) * | 2019-02-05 | 2019-11-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный технологический институт (технический университет)" | Способ получения газонаполненных полиакрилимидов |
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KR20160096133A (ko) * | 2013-12-06 | 2016-08-12 | 에보니크 룀 게엠베하 | 폐쇄된 도구에서 후속적인 발포 성형을 위한 폴리(메트)아크릴이미드 입자의 예비발포 |
JP2016540085A (ja) * | 2013-12-06 | 2016-12-22 | エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツングEvonik Roehm GmbH | 閉鎖した型内で引き続き発泡成形するためのポリ(メタ)アクリルイミド粒子の予備発泡 |
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