RU2015129346A - Способ получения динамически вулканизированных сплавов - Google Patents

Способ получения динамически вулканизированных сплавов Download PDF

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RU2015129346A
RU2015129346A RU2015129346A RU2015129346A RU2015129346A RU 2015129346 A RU2015129346 A RU 2015129346A RU 2015129346 A RU2015129346 A RU 2015129346A RU 2015129346 A RU2015129346 A RU 2015129346A RU 2015129346 A RU2015129346 A RU 2015129346A
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extruder
thermoplastic resin
elastomer
nylon
styrene
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RU2635610C2 (ru
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Роналд ДЕ-ЯНГ
Мария Д. ЭЛЬУЛ
Деннис КУМОР
Роналд Кейт ВАТЕРС
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Эксонмобил Кемикэл Пейтентс Инк.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/25—Component parts, details or accessories; Auxiliary operations
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    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
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    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0038—Plasticisers
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Claims (25)

1. Способ получения динамически вулканизированного сплава, где сплав включает по крайней мере один эластомер и по крайней мере одну термопластическую смолу, причем способ включает следующие последовательные стадии:
(а) загрузка эластомера и первой части термопластической смолы в исходное впускное отверстие экструдера,
(б) смешивание эластомера и первой части термопластической смолы,
(в) загрузка улучшающей сочетаемость добавки в экструдер,
(г) смешивание эластомера, первой части термопластической смолы и улучшающей сочетаемость добавки для инициации реакции прививки эластомера и термопластической смолы без какой-либо значительной вулканизации эластомера,
(д) загрузка второй части термопластической смолы в экструдер и
(е) смешивание содержимого экструдера в условиях действия сдвига для смешивания и вулканизации эластомера до тех пор, пока эластомер не распределится в виде частиц в матрице термопластической смолы и вулканизация частиц эластомера не достигнет по крайней мере 80%, при этом образуется динамически вулканизированный сплав.
2. Способ по п. 1, где по крайней мере один вулканизирующий агент подают в экструдер вместе со второй частью термопластической смолы.
3. Способ по п. 1, где указанный эластомер добавляют напрямую во впускное отверстие без любого предварительного смешивания с другими компонентами динамически вулканизированного сплава.
4. Способ по п. 1 или 2, где после стадии д) и после инициации вулканизации частиц эластомера, в экструдер подают по крайней мере одну улучшающую сочетаемость добавку или по крайней мере один модификатор вязкости.
5. Способ по п. 1 или 2, где в ходе стадий а), в) или д) в экструдер также подают по крайней мере один стабилизатор.
6. Способ по п. 2, дополнительно включающий стадию объединения по крайней мере одного вулканизирующего агента с частями термопластической смолы перед подачей вулканизирующего агента в экструдер.
7. Способ по п. 1 или 2, где количество второй части термопластической смолы, подаваемой на стадии д), составляет от 10 до 75 мас.% в расчете на общее количество термопластической смолы в сплаве.
8. Способ по п. 1 или 2, где вторую часть термопластической смолы подают в экструдер в отверстия, расположенные в интервале от 30 до 60% соотношения L/D экструдера, причем L означает длину шнека экструдера, a D означает максимальную ширину отверстия цилиндра экструдера.
9. Способ по п. 1 или 2, дополнительно включающий стадию подачи вторичного эластомера в исходное впускное отверстие экструдера.
10. Способ по п. 1 или 2, где термопластическую смолу выбирают из группы, включающей полиамиды, полиимиды, поликарбонаты, сложные полиэфиры, полисульфонаты, полилактоны, полиацетали, акрилонитрил-бутадиен-стирольные смолы, полифениленоксид, полифениленсульфид, полистирол, стирол-акрилонитрильные смолы, стирол-малеинангидридные смолы, ароматические поликетоны и их смеси.
11. Способ по п. 1 или 2, где термопластической смолой является полиамид, выбранный из группы, включающей нейлон-6, нейлон-12, нейлон-6,6, нейлон-6,9, нейлон-6,10, нейлон-6,12, нейлон-6,66 сополимер, нейлон-11 и их смеси.
12. Способ по п. 1 или 2, где эластомер представляет собой эластомер на основе изобутилена.
13. Способ по п. 1 или 2, где эластомер представляет собой сополимер изобутилена и алкилстирола.
14. Способ по п. 1 или 2, где термопластическая смола присутствует в сплаве в количестве от 40 до 80 част./100 част.
15. Способ по п. 1 или 2, где после завершения подачи вулканизирующих агентов в экструдер на стадии д), экструдер эксплуатируют при удельной энергии в интервале не более 0,39 кВт×ч/кг, или в интервале от 0,35 кВт×ч/кг до 0,29 кВт×ч/кг или в интервале от 0,33 кВт×ч/кг до 0,30 кВт×ч/кг.
16. Способ по п. 1 или 2, где температуру экструдера снижают до величины в интервале от 5 до 50°С после подачи второй части термопластической смолы в экструдер.
17. Пленка, формованная из динамически вулканизированного сплава, полученного способом по п. 1 или 2.
18. Пленка по п. 17, где ЭШП пленки находится в интервале от 0,5 до 1,5 мкм.
19. Пленка по п. 17, где коэффициент проницаемости пленки составляет не более 0,16 см3-мм/м2-сут-мм рт.ст.
RU2015129346A 2012-12-20 2013-10-15 Способ получения динамически вулканизированных сплавов RU2635610C2 (ru)

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US201261740114P 2012-12-20 2012-12-20
US61/740,114 2012-12-20
PCT/US2013/065001 WO2014099117A1 (en) 2012-12-20 2013-10-15 Process for preparing dynamically vulcanized alloys

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RU2778125C2 (ru) * 2017-08-31 2022-08-15 Лайфстайлс Хелскеа Пти. Лтд. Изделия из полиизопрена, катализируемого по циглеру-натта
US11753487B2 (en) 2017-08-31 2023-09-12 Lifestyles Healthcare Pte. Ltd. Ziegler-Natta catalyzed polyisoprene articles

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WO2017019033A1 (en) * 2015-07-28 2017-02-02 Exxonmobil Chemical Patents Inc. Elastomeric compositions and their use in articles
TWI704179B (zh) 2018-12-07 2020-09-11 財團法人工業技術研究院 熱塑性硫化彈性體及其製造方法
JP7335483B2 (ja) * 2018-12-26 2023-08-30 横浜ゴム株式会社 冷媒輸送配管用熱可塑性樹脂組成物の製造方法
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CA2894499A1 (en) 2014-06-26
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US20150209993A1 (en) 2015-07-30
US20150307665A1 (en) 2015-10-29
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