KR20200065410A - 이차 손상 방지 기능을 가진 자기치유 보호코팅재 - Google Patents
이차 손상 방지 기능을 가진 자기치유 보호코팅재 Download PDFInfo
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Abstract
Description
코어(core) 부분에는 치유물질이 함유되어 있고, 캡슐막(shell) 부분은 고분자로 구성되어 있다.
도 2는 본 발명의 실시예 3에 따른 (a) 마이크로캡슐을 함유하지 않은 비교용 코팅재(control coating)에 손상을 발생시켰을 때 치유되지 않았음을 보여주는 주사식전자현미경(SEM) 사진, (b) 마이크로캡슐을 함유한 자기치유 코팅재에 손상을 발생시켰을 때 자기치유 되었음을 보여주는 SEM 사진, 및 (c) 치유가 일어난 자기치유 코팅재에 진동(10~30 Hz)을 인가했을 때 이차적 손상이 발생하지 않았음을 보여주는 SEM 사진이다.
Claims (11)
- 매트릭스 형성용 고분자 조성물; 및
치유 물질을 함유하며 상기 고분자 조성물 내에 분산되는 마이크로캡슐;을 포함하는 자기치유 코팅액으로서,
여기에서 상기 치유 물질은 식물유와 다이바이닐(Divinyl) 화합물의 혼합물을 포함하고, 상기 자기치유 코팅액이 기재 상에 도포되어 형성된 코팅재가 손상을 입는 경우 손상 부분의 마이크로캡슐이 깨져 치유 물질이 흘러나와 손상 부분을 메운 후 점탄성 물질로 전환되는 자기치유 코팅액.
- 제1항에 있어서,
상기 식물유는 아마인유(linseed oil), 동유(tung oil), 채종유, 오동유, 대두유, 탈수 피마자유, 평지씨유(rapeseed oil), 참기름, 들기름, 면실유, 미강유(rice bran oil), 콩기름 및 옥수수기름으로 이루어진 군으로부터 선택되는 어느 하나 이상을 포함하는 것을 특징으로 하는 자기치유 코팅액.
- 제1항에 있어서,
상기 다이바이닐 화합물은 1,3-부탄디올 디메타크릴레이트, 1,4-부탄디올 디메타크릴레이트, 에틸렌글리콜 디메타크릴레이트, 디우레탄 디메타크릴레이트, 1,6-헥산디올 디메타크릴레이트, 트리에틸렌글리콜 디메타크릴레이트, 디에틸렌글리콜 디메타크릴레이트, 1,3-부탄디올 디아크릴레이트, 1,4-부탄디올 디아크릴레이트, 1,6-헥산디올 디아크릴레이트, 1,6-헥산디올 에톡실레이트 디아크릴레이트, 비스페놀A 에톡실레이트 디아크릴레이트, 비스페놀A 프로폭실레이트 디아크릴레이트, 폴리에틸렌글리콜 디아크릴레이트, 테트라(에틸렌글리콜)디아크릴레이트, 디(에틸렌글리콜)디아크릴레이트, 에틸렌글리콜 디아크릴레이트, 에틸렌 디아크릴레이트, 네오펜틸글리콜 디아크릴레이트, 폴리(프로필렌글리콜)디아크릴레이트 및 트리(프로필렌글리콜)디아크릴레이트로 이루어진 군으로부터 선택되는 어느 하나 이상을 포함하는 것을 특징으로 하는 자기치유 코팅액.
- 제1항에 있어서,
상기 치유 물질에 있어서, 다이바이닐 화합물은 치유물질 총중량에 대하여 0.1 내지 30 중량%를 포함하는 자기치유 코팅액.
- 제1항에 있어서,
상기 마이크로캡슐의 직경은 5 내지 500 ㎛인 자기치유 코팅액.
- 제1항에 있어서,
상기 마이크로캡슐의 캡슐막 재질인 고분자는 우레아-포름알데히드 고분자, 우레아-멜라민-포름알데히드 고분자, 멜라민-포름알데히드 고분자로 이루어진 군에서 선택되는 고분자인 자기치유 코팅액.
- 제1항에 있어서,
상기 매트릭스 형성용 고분자 조성물은 에나멜 페인트, 아크릴계 수지, 비닐계 수지, 에폭시계 수지, 염화 고무계 수지, 폴리우레탄계 수지, 폴리에스테르계 수지, 폴리아크릴레이트계 수지, 멜라민계 수지, 에폭사이드계 코팅재, 폴리에스테르-에폭사이드계 수지 및 실리콘계 수지로 이루어지는 군에서 선택되는 1종 이상의 고분자를 포함하는 자기치유 코팅액.
- 제1항에 있어서,
상기 자기치유 코팅액 내의 마이크로캡슐의 함량은 자기치유 코팅액 총중량을 기준으로 5 내지 50 중량%인 자기치유 코팅액.
- 1) 식물유 및 다이바이닐 화합물을 함유한 마이크로캡슐을 제조하는 단계;
2) 매트릭스 형성용 조성물 내에 상기 단계 1)의 마이크로캡슐을 투입하고 균일하게 분산하는 단계를 포함하는 자기치유 코팅액 제조 방법.
- 제1항의 자기치유 코팅액이 기재 상에 도포되어 제조된 자기치유 코팅재.
- 제 10 항에 있어서,
상기 기재는 금속, 콘크리트, 세라믹, 모르타르, 플라스틱, 복합 재료, 석재 및 목재로 이루어진 군에서 선택되는 1종 이상의 기재를 포함하는 코팅재.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20230006944A (ko) | 2021-07-05 | 2023-01-12 | 모정은 | 자가 치유 능력이 있는 고분자를 코팅한 안경렌즈 |
| CN116272712A (zh) * | 2023-03-10 | 2023-06-23 | 南京林业大学 | 一种用于乳化沥青自修复的微胶囊制备方法 |
| CN116514435A (zh) * | 2023-03-22 | 2023-08-01 | 武汉纺织大学 | 一种水泥混凝土裂缝多次自愈合用苯丙乳液微胶囊组装体及其制备方法 |
| KR20230169025A (ko) * | 2021-02-10 | 2023-12-15 | 한국과학기술연구원 | 코어-쉘 구조를 갖는 자가 복원 마이크로 캡슐 및 그 제조방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102783556B1 (ko) | 2022-07-28 | 2025-03-20 | 연세대학교 원주산학협력단 | 치유상태가 유지되는 자기치유 보호 코팅재 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230169025A (ko) * | 2021-02-10 | 2023-12-15 | 한국과학기술연구원 | 코어-쉘 구조를 갖는 자가 복원 마이크로 캡슐 및 그 제조방법 |
| KR20230006944A (ko) | 2021-07-05 | 2023-01-12 | 모정은 | 자가 치유 능력이 있는 고분자를 코팅한 안경렌즈 |
| CN116272712A (zh) * | 2023-03-10 | 2023-06-23 | 南京林业大学 | 一种用于乳化沥青自修复的微胶囊制备方法 |
| CN116514435A (zh) * | 2023-03-22 | 2023-08-01 | 武汉纺织大学 | 一种水泥混凝土裂缝多次自愈合用苯丙乳液微胶囊组装体及其制备方法 |
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