| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 가을 (10/10 ~ 10/11, 부경대학교) |
| 권호 |
28권 2호, p.333 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
The structure of urea-formaldehyde resin by content of methylol groups in urea-formaldehyde precondensates |
| 초록 |
Urea-formaldehyde(UF) resins lack in water resistance because of the susceptibility to hydrolysis. This need can be overcome by forming stronger network structure of UF resins. We reported the structure of cured UF resin by increasing formation of methylol groups with methylol reactive catalyst. The amount of unreated HCHO was determined by the titration of methyl-red and methylene-blue, and then we observed content of methylol groups in UF precondensates. After the curing reaction with change of methylol groups, the quantity of emitted formaldehyde absorbed by hydrolytic degradation in cured UF resin was discussed by the same titration method.
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| 저자 |
김호중, 문옥길, 나재식
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| 소속 |
광운대 |
| 키워드 |
urea-formaldehyde; structure
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| E-Mail |
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