RU2014130202A - Препрег, армированный волокном композитный материал и способ производства армированного волокном композитного материала - Google Patents

Препрег, армированный волокном композитный материал и способ производства армированного волокном композитного материала Download PDF

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RU2014130202A
RU2014130202A RU2014130202A RU2014130202A RU2014130202A RU 2014130202 A RU2014130202 A RU 2014130202A RU 2014130202 A RU2014130202 A RU 2014130202A RU 2014130202 A RU2014130202 A RU 2014130202A RU 2014130202 A RU2014130202 A RU 2014130202A
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prepreg
minutes
time
accelerator
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Джонатан К. ХЬЮЗ
Джеффри А. САТТЕРУАЙТ
Нобуюки АРАИ
Альфред П. ХАРО
Кенити ЙОСИОКА
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Торэй Индастриз, Инк.
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    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
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    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
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    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

1. Препрег, содержащий термоотверждаемую смолу и армирующие волокна в термоотверждаемой смоле,в котором во время отверждения препрега только в условиях вакуумного мешка препрег удовлетворяет следующим условиям (1) и (2):(1) 100≤t≤2000,(2) t<t≤350,где t=t+t(в минутах), где tпредставляет собой время (в минутах) нагревания от 20°C до температуры первоначальной выдержки 120°C; и tпредставляет собой время (в минутах) выдержки при 120°C до тех пор, пока препрег достигнет 30% затухания (ультразвука), которое определяется с помощью неразрушающего ультразвукового контроля (NDI);t=t+t(в минутах), где tпредставляет собой время (в минутах) нагревания от 20°C до температуры первоначальной выдержки 120°C, и tпредставляет собой время выдержки (в минутах) при 120°C до тех пор, пока препрег достигнет степени отверждения 20%, которая определяется с помощью дифференциального сканирующего калориметра (DSC); в котором термоотверждаемая смола содержит ускоритель для уменьшения t, в то же время обеспечивающий время консолидации t.2. Препрег по п. 1, дополнительно содержащий термопластичные частицы, локализованные у поверхности препрега.3. Препрег по п. 1, в котором степень пропитки препрега составляет приблизительно от 20% до приблизительно 95%.4. Препрег по п. 1, в котором препрег удовлетворяет следующим условиям (1) и (2):(1) 100≤t≤2000,(2) 80<t≤150.5. Препрег по п. 1, в котором ускоритель содержит фенольную группу и/или группу сложного эфира сульфоновой кислоты.6. Препрег по п. 1, в котором количество ускорителя составляет приблизительно от 0,5 до приблизительно 10 массовых частей на 100 массовых частей термоотверждаемой смолы.7. Препрег по п. 1, в котором препрег содержит компонент, содержащий группу сульфоновой кислоты.8. Препрег по п. 1, в котором препрег содержит компонент, содержащий пирока

Claims (16)

1. Препрег, содержащий термоотверждаемую смолу и армирующие волокна в термоотверждаемой смоле,
в котором во время отверждения препрега только в условиях вакуумного мешка препрег удовлетворяет следующим условиям (1) и (2):
(1) 100≤ti≤2000,
(2) ti<t20≤350,
где ti=t1+t2 (в минутах), где t1 представляет собой время (в минутах) нагревания от 20°C до температуры первоначальной выдержки 120°C; и t2 представляет собой время (в минутах) выдержки при 120°C до тех пор, пока препрег достигнет 30% затухания (ультразвука), которое определяется с помощью неразрушающего ультразвукового контроля (NDI);
t20=t1+t3 (в минутах), где t1 представляет собой время (в минутах) нагревания от 20°C до температуры первоначальной выдержки 120°C, и t3 представляет собой время выдержки (в минутах) при 120°C до тех пор, пока препрег достигнет степени отверждения 20%, которая определяется с помощью дифференциального сканирующего калориметра (DSC); в котором термоотверждаемая смола содержит ускоритель для уменьшения t20, в то же время обеспечивающий время консолидации ti.
2. Препрег по п. 1, дополнительно содержащий термопластичные частицы, локализованные у поверхности препрега.
3. Препрег по п. 1, в котором степень пропитки препрега составляет приблизительно от 20% до приблизительно 95%.
4. Препрег по п. 1, в котором препрег удовлетворяет следующим условиям (1) и (2):
(1) 100≤ti≤2000,
(2) 80<t20≤150.
5. Препрег по п. 1, в котором ускоритель содержит фенольную группу и/или группу сложного эфира сульфоновой кислоты.
6. Препрег по п. 1, в котором количество ускорителя составляет приблизительно от 0,5 до приблизительно 10 массовых частей на 100 массовых частей термоотверждаемой смолы.
7. Препрег по п. 1, в котором препрег содержит компонент, содержащий группу сульфоновой кислоты.
8. Препрег по п. 1, в котором препрег содержит компонент, содержащий пирокатехиновую группу.
9. Препрег по п. 1, в котором препрег содержит компонент, содержащий тозильную группу.
10. Препрег по п. 1, в котором препрег содержит компонент, содержащий ароматическую соль сульфония.
11. Препрег по п. 1, в котором термоотверждаемая смола имеет Tg≥180°C, когда отверждается при 180°C в течение 2 ч.
12. Препрег по п. 1, в котором ускоритель не уменьшает Tg термоотверждаемой смолы ниже 180°C, когда препрег отверждается при 180°C в течение 2 ч.
13. Способ переработки препрега, содержащего термоотверждаемую смолу, причем способ включает в себя:
определение времени консолидации путем отверждения препрега в печи в условиях вакуумного мешка и
определение потери на затухание препрега, и регистрацию времени, когда потеря на затухание достигнет 30%, и определение времени, за которое процент отверждения термоотверждаемой смолы достигает 20%.
14. Способ по п. 13, в котором во время отверждения препрега только в условиях вакуумного мешка препрег удовлетворяет следующим условиям (1) и (2):
(1) 100≤ti≤2000,
(2) ti<t20≤350,
в котором термоотверждаемая смола содержит ускоритель для уменьшения t20, в то же время обеспечивающий время консолидации ti;
в котором ti=t1+t2 (в минутах), где t1 представляет собой время (в минутах) нагревания от 20°C до температуры первоначальной выдержки 120°C; и t2 представляет собой время (в минутах) выдержки при 120°C до тех пор, пока препрег достигнет 30% затухания (ультразвука), которое определяется с помощью неразрушающего ультразвукового контроля (NDI);
t20=t1+t3 (в минутах), где t1 представляет собой время (в минутах) нагревания от 20°C до температуры первоначальной выдержки 120°C, и t3 представляет собой время выдержки (в минутах) при 120°C до тех пор, пока препрег достигнет степени отверждения 20%, которая определяется с помощью дифференциального сканирующего калориметра (DSC); в котором термоотверждаемая смола содержит ускоритель для уменьшения t20, в то же время обеспечивающий время консолидации ti.
15. Способ по п. 14, в котором способ удовлетворяет следующим условиям (1) и (2):
(1) 100≤ti≤2000,
(2) 80<t20≤150.
16. Отвержденный, армированный волокном композитный материал, получаемый термическим отверждением препрега по п. 1.
RU2014130202A 2011-12-23 2012-12-26 Препрег, армированный волокном композитный материал и способ производства армированного волокном композитного материала RU2014130202A (ru)

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