| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Properties of crosslinker masked by benzoic acid for powder coatings |
| 초록 |
When powder coatings are prepared as a bit thick film, the surface defects such as pinholes get to be serious by increasing the thickness of films. The unique method reducing pinholes is to mask and the hydroxy group of materials might be masked by using acids. The hydroxy alkyl amides as crosslinker were prepared by reacting dimethyl adipate with diethanol amine. This crosslinker was masked as follows: first, the crosslinker was dissolved completely by mixture of hydroquinone as solvent and benzoic acid as masking agent, and then the radical’s formation of crosslinker was obtained by slowly dropping p-toluene sulphonic acid as a catalyst. After dropping process, the hydroxyl group of beta hydroxyalkylamides to be formed as the type of radical was masked by using benzoic acid. The treated crosslinker which was masked by benzoic acid decreased the number of pinholes when the powder coatings converted to a film. |
| 저자 |
나민영1, 고현옥1, 윤순도1, 임형수1, 김형진1, 이완진2
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| 소속 |
1전남대, 2리트머스화학(주) |
| 키워드 |
benzoic acid; masking; hydroxyalkylamide
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| E-Mail |
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