RU2020111351A - Пэи-пенопласты из вспененных частиц для применения внутри летательных аппаратов - Google Patents

Пэи-пенопласты из вспененных частиц для применения внутри летательных аппаратов Download PDF

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RU2020111351A
RU2020111351A RU2020111351A RU2020111351A RU2020111351A RU 2020111351 A RU2020111351 A RU 2020111351A RU 2020111351 A RU2020111351 A RU 2020111351A RU 2020111351 A RU2020111351 A RU 2020111351A RU 2020111351 A RU2020111351 A RU 2020111351A
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foam
foamed
foamed particles
amount
pei
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RU2020111351A
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RU2777619C2 (ru
RU2020111351A3 (ru
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Кристиан ТРАСЛЬ
Денис ХОЛЛАЙН
Кай БЕРНХАРД
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Эвоник Оперейшнс Гмбх
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)

Claims (13)

1. Применение ПЭИ-пенопласта из вспененных частиц в авиастроении, отличающееся тем, что вспененный ПЭИ имеет температуру стеклования от 180 до 215°С и ячейки со средним диаметром менее 2 мм.
2. Применение пенопласта из вспененных частиц по п. 1, отличающееся тем, что он получен из состава, содержащего ПЭИ в количестве от 80 до 99,5 масс. %, вспенивающий агент в количестве от 0,5 до 10 масс. % и добавки в количестве от 0 до 10 масс. %.
3. Применение пенопласта из вспененных частиц по п. 1 или 2, отличающееся тем, что под добавками подразумеваются антипирены, пластификаторы, пигменты, УФ-стабилизаторы, добавки для получения мелкоячеистого пенопласта, модификаторы ударной вязкости, промотры адгезии, модификаторы реологических свойств, удлинители цепи, волокна и/или наночатицы.
4. Применение пенопласта из вспененных частиц по меньшей мере по одному из пп. 1-3, отличающееся тем, что под вспенивающими агентами подразумевается спирт, кетон, алкан, алкен, СО2, N2, вода, простой эфир, альдегид, химические вспенивающие агенты или смеси из нескольких этих веществ.
5. Применение пенопласта из вспененных частиц по меньшей мере по одному из пп. 1-4, отличающееся тем, что он имеет прочность при растяжении согласно стандарту ISO 1926 более 0,5 МПа, относительное удлинение при разрыве согласно стандарту ISO 1926 от 8 до 12%, модуль упругости при сдвиге согласно стандарту ASTM С273 при комнатной температуре более 8 МПа, прочность при сдвиге согласно стандарту ASTM С273 при комнатной температуре более 0,45 МПа, модуль упругости при сжатии согласно стандарту ISO 844 при комнатной температуре более 13 МПа и прочность при сжатии согласно стандарту ISO 844 при комнатной температуре более 0,4 МПа.
6. Применение пенопласта из вспененных частиц по меньшей мере по одному из пп. 1-5, отличающееся тем, что он установлен во внутренней части летательного аппарата.
7. Применение пенопласта из вспененных частиц по меньшей мере по одному из пп. 1-6, отличающееся тем, что средний диаметр его ячеек составляет менее 500 мкм.
8. Способ получения ПЭИ-пенопласта из вспененных частиц для применения по меньшей мере по одному из пп. 1-7, отличающееся тем, что состав, содержащий ПЭИ в количестве от 80 до 99,5 масс. %, вспенивающий агент в количестве от 0,5 до 10 масс. % и добавки в количестве от 0 до 10 масс. %, перерабатывают на экструдере с перфорированной плитой во вспененный гранулят, при этом температуры между загрузочной зоной и концом шнека составляют от 180 до 380°С, температура перфорированной плиты составляет от 250 до 350°С, а температура расплава при выходе через перфорированную плиту составляет от 230 до 360°С, и вспененный гранулят затем подвергают дальнейшему вспениванию с получением пенопласта из вспененных частиц.
9. Способ получения ПЭИ-пенопласта из вспененных частиц для применения по меньшей мере по одному из пп. 1-7, отличающийся тем, что состав, содержащий ПЭИ в количестве от 90 до 100 масс. % и добавки в количестве от 0 до 10 масс. %, перерабатывают на экструдере с перфорированной плитой во вспененный гранулят, при этом температуры между загрузочной зоной и концом шнека составляют от 180 до 380°С, температура перфорированной плиты составляет от 300 до 350°С, а температура расплава при выходе через перфорированную плиту составляет от 250 до 360°С, к грануляту затем в автоклаве добавляют вспенивающий агент в таком количестве, чтобы затем его содержание в грануляте составляло от 0,5 до 10 масс. %, и после этого гранулят, содержащий вспенивающий агент, вспенивают путем сброса давления и/или путем нагрева до температуры свыше 200°С с получением пенопласта из вспененных частиц.
10. Способ изготовления комбинированной детали, отличающийся тем, что полученный способом по п. 8 или 9 пенопласт из вспененных частиц склеивают, сшивают или сваривают с покровными материалами.
11. Способ изготовления комбинированной детали, отличающийся тем, что полученный способом по п. 8 или 9 пенопласт из вспененных частиц вспенивают в присутствии покровного материала таким образом, что он соединяется с пенопластом путем склеивания или сваривания с ним.
12. Способ по п. 8, отличающийся тем, что ПЭИ при выходе из экструдера подают в форму, которая при необходимости является обогреваемой и в которой при необходимости содержатся покровные материалы, и при этом вспенивают с одновременным формообразованием с получением пенопласта из вспененных частиц, соответственно комбинированного материала.
13. Способ по меньшей мере по одному из пп. 8-12, отличающийся тем, что в процессе вспенивания пенопласт из вспененных частиц снабжают вставками и/или создают в нем каналы.
RU2020111351A 2017-08-24 2018-08-20 Пэи-пенопласты из вспененных частиц для применения внутри летательных аппаратов RU2777619C2 (ru)

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