KR102503026B1 - 무작위적으로 배향된 필라멘트를 갖는 성형 화합물 및 이의 제조 및 사용 방법 - Google Patents
무작위적으로 배향된 필라멘트를 갖는 성형 화합물 및 이의 제조 및 사용 방법 Download PDFInfo
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- KR102503026B1 KR102503026B1 KR1020197037996A KR20197037996A KR102503026B1 KR 102503026 B1 KR102503026 B1 KR 102503026B1 KR 1020197037996 A KR1020197037996 A KR 1020197037996A KR 20197037996 A KR20197037996 A KR 20197037996A KR 102503026 B1 KR102503026 B1 KR 102503026B1
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- curable resin
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- molding compound
- dimethylurea
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Images
Classifications
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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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- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
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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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- 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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
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Abstract
Description
Claims (20)
- 성형 화합물의 제조 방법으로서,
A) 일방향으로 정렬된 멀티필라멘트 토우의 층을 형성하는 단계로서, 상기 층은 80 내지 400 그램/제곱미터의 중량을 가지는 단계;
B) 상기 층의 하나 이상의 주요 표면에 경화성 수지 조성물을 도포함으로써 경화성 수지 조성물로 층을 함침시키고, 적어도 40℃의 온도로 경화성 수지 조성물을 가열하고, 상기 층 및 가열된 경화성 수지 조성물에 압력을 인가하여 20 내지 80 중량%의 필라멘트 함량을 갖는 함침된 멀티필라멘트 층을 형성하고, 40℃ 미만으로 함침된 멀티필라멘트 층을 냉각시키는 단계로서, 여기서 경화성 수지 조성물은,
i) 하나 이상의 에폭시 수지, 하나 이상의 에폭시 수지에 대한 경화제, 에폭시 수지와 경화제의 반응을 위한 하나 이상의 촉매, 및 내부 주형 이형제를 함유하고;
ii) 시차 주사 열량측정법에 의해 측정되는 0 내지 40℃의 유리 전이 온도를 가지며;
iii) 열-연화성이며;
iv) 적어도 100℃의 경화 온도를 가지고, 그리고
v) 경화되어 열경화성 중합체를 형성하는 것인 단계;
C) 함침된 멀티필라멘트 층을 경화성 수지 조성물에 내포된 일방향으로 정렬된 필라멘트의 스트립으로 절단하는 단계로서, 상기 스트립은 (i) 필라멘트의 정렬 방향에 대해 평행한 최장 치수로서, 25 내지 100 mm인 상기 최장 치수, (ii) 16 내지 150의 길이 대 너비 비율, (iii) 50 내지 1000의 길이 대 두께 비율을 갖는 단계;
D) 상기 스트립을 증착시켜 700 내지 5000 그램/제곱미터의 면적 중량을 갖는 매트를 형성하는 단계로서, 여기서 상기 스트립은 매트의 면 내에서 무작위적으로 배향되는 단계; 및
E) 적어도 40℃의 고온으로 매트를 가열하고, 매트를 압축시켜 상기 스트립들을 함께 융합시켜 면 내에서 무작위적으로 배향된 20 내지 80 중량%의 필라멘트 및 이에 따라 80 내지 20 중량%의 경화성 수지 조성물을 갖는 성형 화합물을 형성하고, 40℃ 미만으로 성형 화합물을 냉각시키는 단계로서, 여기서 경화성 수지 조성물은 단계 E)가 수행된 이후에 열-연화성으로 유지되는 단계
를 포함하는 성형 화합물의 제조 방법. - 제1항에 있어서, 상기 단계 B)에서 제조된 함침된 멀티필라멘트 층은 50 내지 70 중량%의 필라멘트 함량을 가지고, 상기 단계 E)에서 형성된 성형 화합물은 50 내지 70 중량%의 필라멘트 및 이에 따라 50 내지 30 중량%의 경화성 수지 조성물을 함유하는 방법.
- 제1항 또는 제2항에 있어서, 상기 스트립은 24 내지 40의 길이 대 너비 비율 및 0.75 내지 3 mm의 너비를 가지는 방법.
- 제3항에 있어서, 상기 단계 D)에서 형성된 매트의 면적 중량은 1000 내지 3000 g/m2인 방법.
- 제3항에 있어서, 상기 스트립은 각각 3000 내지 10,000개의 일방향으로 정렬된 필라멘트를 함유하는 방법.
- 제3항에 있어서, 상기 경화성 수지 조성물은 다가 페놀의 하나 이상의 디글리시딜 에테르, 페놀-포름알데히드 노볼락 수지의 하나 이상의 폴리글리시딜 에테르 및 페놀계 화합물의 하나 이상의 옥사졸리돈기-함유 폴리글리시딜 에테르를 함유하는 방법.
- 제6항에 있어서, 상기 에폭시 수지와 경화제의 반응을 위한 하나 이상의 촉매는 톨루엔 비스-디메틸우레아 p-클로로페닐-N,N-디메틸우레아, 3-페닐-1,1-디메틸우레아, 3,4-디클로로페닐-N,N-디메틸우레아, N-(3-클로로-4-메틸페닐)-N',N'-디메틸우레아 중 하나 이상으로부터 선택된 우레아 화합물을 포함하는 방법.
- 제7항에 있어서, 상기 경화제는 디시안디아미드를 포함하는 방법.
- 제1항의 방법에 의해 제조된 성형 화합물.
- 경화성 수지 조성물에 내포된 일방향으로 정렬된 필라멘트의 융합된 스트립의 매트를 포함하는 성형 화합물로서, 여기서 융합 이전의 상기 스트립은 (i) 필라멘트의 정렬 방향에 대해 평행한 최장 치수로서, 25 내지 100 mm인 상기 최장 치수, (ii) 16 내지 150의 길이 대 너비 비율 및 (iii) 50 내지 1000의 길이 대 두께 비율을 가지며, 여기서 상기 스트립은 20 내지 80 중량%의 상기 필라멘트 및 이에 따라 80 내지 20 중량%의 경화성 수지 조성물을 함유하며, 상기 성형 화합물은 0.02 내지 0.5 g/cm3의 벌크 밀도를 가지고, 스트립은 면 내에서 무작위적으로 배향되며, 매트는 700 내지 5000 그램/제곱미터의 면적 밀도를 가지며, 추가로 경화성 수지 조성물은,
i) 하나 이상의 에폭시 수지, 하나 이상의 에폭시 수지에 대한 경화제, 에폭시 수지와 경화제의 반응을 위한 하나 이상의 촉매, 및 내부 주형 이형제를 함유하고;
ii) 시차 주사 열량측정법에 의해 측정되는 0 내지 40℃의 유리 전이 온도를 가지며;
iii) 열-연화성이며;
iv) 적어도 100℃의 경화 온도를 가지고, 그리고
v) 경화되어 열경화성 중합체를 형성하는 성형 화합물. - 제10항에 있어서, 상기 경화성 수지 조성물은 다가 페놀의 하나 이상의 디글리시딜 에테르, 페놀-포름알데히드 노볼락 수지의 하나 이상의 폴리글리시딜 에테르 및 페놀계 화합물의 하나 이상의 옥사졸리돈기-함유 폴리글리시딜 에테르를 함유하는 성형 화합물.
- 제11항에 있어서, 상기 에폭시 수지와 경화제의 반응을 위한 하나 이상의 촉매는 톨루엔 비스-디메틸우레아 p-클로로페닐-N,N-디메틸우레아, 3-페닐-1,1-디메틸우레아, 3,4-디클로로페닐-N,N-디메틸우레아, N-(3-클로로-4-메틸페닐)-N',N'-디메틸우레아 중 하나 이상으로부터 선택된 우레아 화합물을 포함하는 성형 화합물.
- 제12항에 있어서, 상기 경화제는 디시안디아미드를 포함하는 성형 화합물.
- 성형된 무작위 섬유 조성물의 제조 방법으로서,
경화성 수지 조성물을 경화시켜 열경화성 중합체를 형성하기에 충분한 조건 하에 초대기압에서 제10항 내지 제13항 중 어느 한 항의 성형 화합물을 성형시키는 것을 포함하는 성형된 무작위 섬유 조성물의 제조 방법. - 제14항에 있어서, 성형은 주형 내에서 수행되며, 여기서 성형 화합물은 주형의 최대 단면적의 50 내지 80%의 최대 단면적을 갖는 방법.
- 제15항에 있어서, 최대 10분의 시간 동안 경화성 수지 조성물을 경화시키기에 충분한 온도에서 초대기압에 상기 성형 화합물을 노출시켜 수지 조성물을 경화시켜 적어도 140℃의 유리 전이 온도를 갖는 경화된 수지를 형성하고, 경화된 수지의 매트릭스 내에 분포된 무작위적으로 배향된 필라멘트를 갖는 성형된 복합체를 생성함으로써 성형이 수행되는 방법.
- 강화된 복합체의 제조 방법으로서,
A) 일방향으로 정렬된 멀티필라멘트 토우의 층을 형성하는 단계로서, 상기 층은 80 내지 400 그램/제곱미터의 중량을 가지는 단계;
B) 상기 층의 하나 이상의 주요 표면에 경화성 수지 조성물을 도포함으로써 경화성 수지 조성물로 층을 함침시키고, 경화성 수지 조성물을 열-연화시키기에 충분한 고온으로 경화성 수지 조성물을 가열하고, 상기 층 및 열-연화된 경화성 수지 조성물에 압력을 인가하여 20 내지 80 중량%의 필라멘트 함량을 갖는 함침된 멀티필라멘트 층을 형성하고, 함침된 멀티필라멘트 층을 냉각시켜 경화성 조성물을 재고화시키는 단계로서, 여기서 경화성 수지 조성물은,
i) 하나 이상의 에폭시 수지, 하나 이상의 에폭시 수지에 대한 경화제, 에폭시 수지와 경화제의 반응을 위한 하나 이상의 촉매, 및 내부 주형 이형제를 함유하고;
ii) 시차 주사 열량측정법에 의해 측정되는 0 내지 40℃의 유리 전이 온도를 가지며;
iii) 열-연화성이며;
iv) 적어도 100℃의 경화 온도를 가지고, 그리고
v) 경화되어 열경화성 중합체를 형성하는 것인 단계;
C) 상기 함침된 멀티필라멘트 층을 스트립으로 절단하는 단계로서, 상기 스트립은 필라멘트의 정렬 방향에 대해 평행한 최장 치수로서, 25 내지 100 mm인 상기 최장 치수, 16 내지 150의 길이 대 너비 비율 및 50 내지 1000의 길이 대 두께 비율을 가지는 단계;
D) 주형에 상기 스트립을 증착시키는 단계로서, 여기서 상기 스트립은 2차원 면 내에서 무작위적으로 배향되는 단계; 및
E) 스트립을 성형하고, 주형 내에서 경화성 수지 조성물을 경화시켜 강화된 복합체를 형성하는 단계
를 포함하는 강화된 복합체의 제조 방법. - 제17항에 있어서, 상기 경화성 수지 조성물은 다가 페놀의 하나 이상의 디글리시딜 에테르, 페놀-포름알데히드 노볼락 수지의 하나 이상의 폴리글리시딜 에테르 및 페놀계 화합물의 하나 이상의 옥사졸리돈기-함유 폴리글리시딜 에테르를 함유하는 방법.
- 제18항에 있어서, 상기 에폭시 수지와 경화제의 반응을 위한 하나 이상의 촉매는 톨루엔 비스-디메틸우레아 p-클로로페닐-N,N-디메틸우레아, 3-페닐-1,1-디메틸우레아, 3,4-디클로로페닐-N,N-디메틸우레아, N-(3-클로로-4-메틸페닐)-N',N'-디메틸우레아 중 하나 이상으로부터 선택된 우레아 화합물을 포함하는 방법.
- 제18항 또는 제19항에 있어서, 상기 경화제는 디시안디아미드를 포함하는 방법.
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