JP2019108538A - ポリウレタンフォームの製造方法 - Google Patents
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Abstract
Description
ポリウレタンフォームは、ポリオール、イソシアネート、発泡剤、および触媒を含むポリウレタンフォーム原料を、混合、反応させて製造される。
発熱によるスコーチの発生を抑えるために、水の添加量増加に代えて、発泡助剤として塩化メチレンや液化炭酸ガスを添加する方法が知られている。
また、ポリエーテルエステルポリオールとしては、前記ポリエーテルポリオールと多塩基酸を反応させてポリエステル化したもの、あるいは1分子内にポリエーテルとポリエステルの両セグメントを有するものを挙げることができる。
飽和脂肪酸としては、12−ラウリン酸(融点:44〜46℃)、ミリスチン酸(融点:54.4℃)、ペンタデカン酸(融点:51〜53℃)、パルミチン酸(融点:62.9℃)、マルガリン酸(融点:61℃)、ステアリン酸(融点:69.9℃)、ベヘン酸(融点:74〜78℃)、リグノセリン酸(融点:84.2℃)、が挙げられる。
芳香族カルボン酸としては、安息香酸(融点:122.4℃)、ケイ皮酸(融点:133℃)、が挙げられ、ジカルボン酸としては、マロン酸(融点:135℃)、グルタル酸(融点:95〜98℃)、アジピン酸(融点:152℃)、マレイン酸(融点:131℃)、コハク酸(融点:185〜187℃)等が挙げられる。
クエン酸の添加量は、ポリオール100重量部に対して0.1〜0.8重量部が好ましく、より好ましくは0.1〜0.6重量部である。前記添加量の範囲とすることにより、炭酸水素ナトリウムとの吸熱反応をより良好に行うことができる。
一方、リンゴ酸の添加量は、ポリオール100重量に対して0.1〜1.0重量部が好ましく、より好ましくは0.1〜0.8重量部であり、更に好ましくは0.1〜0.6重量部である。前記添加量の範囲とすることにより、炭酸水素ナトリウムとの吸熱反応をより良好に行うことができる。
一方、有機固体酸としてリンゴ酸を使用する場合、炭酸水素ナトリウムの添加量は、重量比でリンゴ酸の添加量の2〜50倍が好ましく、より好ましくは2.5〜40倍である。前記重量比の添加量とすることにより、図2の第1段階の吸熱反応後に第2段階の吸熱反応を行わせることができる。
・ポリオール1;ポリエーテルポリオール、数平均分子量:3000、官能基数3、水酸基価56.1mgKOH/g、品番:GP−3000、三洋化成工業社製
・ポリオール2;ポリマーポリオール、官能基数3、水酸基価32mgKOH/g、品番:EL−941、旭硝子社製
・発泡剤;水
・発泡助剤;塩化メチレン、品番:信越メチレンクロライド、信越化学工業株式会社製
・アミン触媒;品番:33LV、エアプロダクツ社製
・金属触媒;オクチル酸第一錫、品番:MRH110、城北化学工業社製
・整泡剤;シリコーン系整泡剤、品番:B8110、ゴールドシュミット社製
・炭酸水素ナトリウム
・クエン酸
・リンゴ酸
・二水石膏; 比重2.32、平均粒子径40μmの二水石膏、株式会社ノリタケカンパニーリミテド製
・着色剤;カーボン顔料(カーボンコンテント20wt%の黒顔料)、品番;PC4114、大日本インキ化学工業株式会社製
・イソシアネート;2,4−TDI/2,6−TDI=80/20、品番:コロネートT−80、日本ポリウレタン工業社製
発泡中の温度については、発泡時に熱電対をポリウレタンフォームの中央の位置にセットして、最高発熱温度を測定した。最高発熱温度の測定結果が170℃以上の場合に発熱レベル「高」、160℃以上〜170℃未満の場合に発熱レベル「中」、160℃未満の場合に発熱レベル「低」とした。
発泡後のポリウレタンフォームについては、外観を目視で観察し、表面に縞が明確に発生している場合に「×」、縞が薄い又は無い場合に「〇」とした。
Claims (8)
- ポリオール、イソシアネート、発泡剤、触媒を含むポリウレタンフォーム原料を混合、反応させてポリウレタンフォームを製造する方法において、
前記ポリウレタンフォーム原料に炭酸水素ナトリウムと有機固体酸を含むことを特徴とするポリウレタンフォームの製造方法。 - 前記有機固体酸の融点が40〜190℃であることを特徴とする請求項1に記載のポリウレタンフォームの製造方法。
- 前記有機固体酸がクエン酸であることを特徴とする請求項1または2に記載のポリウレタンフォームの製造方法。
- 前記炭酸水素ナトリウムの添加量は、重量比で前記クエン酸の添加量の3〜50倍であることを特徴とする請求項3に記載のポリウレタンフォームの製造方法。
- 前記ポリオール100重量部に対して炭酸水素ナトリウムの添加量は0.4〜15重量部、前記クエン酸の添加量は0.1〜0.8重量部であることを特徴とする請求項3または4に記載のポリウレタンフォームの製造方法。
- 前記有機固体酸がリンゴ酸であることを特徴とする請求項1または2に記載のポリウレタンフォームの製造方法。
- 前記炭酸水素ナトリウムの添加量は、重量比で前記リンゴ酸の添加量の2〜50倍であることを特徴とする請求項6に記載のポリウレタンフォームの製造方法。
- 前記ポリオール100重量部に対して炭酸水素ナトリウムの添加量は0.4〜15重量部、前記リンゴ酸の添加量は0.1〜1.0重量部であることを特徴とする請求項6または7に記載のポリウレタンフォームの製造方法。
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PCT/JP2018/046134 WO2019117292A1 (ja) | 2017-12-15 | 2018-12-14 | ポリウレタンフォームの製造方法 |
CN201880079950.4A CN111465629A (zh) | 2017-12-15 | 2018-12-14 | 聚氨酯泡沫的制造方法 |
US16/771,915 US11753495B2 (en) | 2017-12-15 | 2018-12-14 | Method for producing polyurethane foam |
EP18887528.0A EP3725817A4 (en) | 2017-12-15 | 2018-12-14 | PROCESS FOR PRODUCING POLYURETHANE FOAM |
KR1020207016806A KR20200096534A (ko) | 2017-12-15 | 2018-12-14 | 폴리우레탄 폼의 제조 방법. |
CA3085704A CA3085704A1 (en) | 2017-12-15 | 2018-12-14 | Method for producing polyurethane foam |
JP2022131870A JP2022159561A (ja) | 2017-12-15 | 2022-08-22 | ポリウレタンフォームと物品 |
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JP7551557B2 (ja) | 2021-03-31 | 2024-09-17 | 株式会社イノアックコーポレーション | ポリウレタンフォームの製造方法とポリウレタンフォーム |
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WO2019117292A1 (ja) * | 2017-12-15 | 2019-06-20 | 株式会社イノアックコーポレーション | ポリウレタンフォームの製造方法 |
CN114437534B (zh) * | 2022-02-17 | 2023-09-22 | 江苏七巧工艺木制品股份有限公司 | 一种复合阻燃防火木门及其制备方法 |
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- 2018-12-14 US US16/771,915 patent/US11753495B2/en active Active
- 2018-12-14 EP EP18887528.0A patent/EP3725817A4/en active Pending
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JP7551557B2 (ja) | 2021-03-31 | 2024-09-17 | 株式会社イノアックコーポレーション | ポリウレタンフォームの製造方法とポリウレタンフォーム |
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KR20200096534A (ko) | 2020-08-12 |
US20200399417A1 (en) | 2020-12-24 |
JP7129324B2 (ja) | 2022-09-01 |
CN111465629A (zh) | 2020-07-28 |
EP3725817A4 (en) | 2021-09-22 |
US11753495B2 (en) | 2023-09-12 |
EP3725817A1 (en) | 2020-10-21 |
CA3085704A1 (en) | 2019-06-20 |
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