인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
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지원사업
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커뮤니티
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이용 8
초록·키워드
Owing to the evaporation, toxicity and environmental of evaporating components, the solvent-free polymerization has been widely used in the PSA industry. Ultra-violet(UV) curing technique is one of the most popular of the new cure system, which has many advantages such as fast and solvent-free process, highly efficient and cost effective.
The key point of this study is preparation of solvent-free acrylic PSA by UV radiation. Effect of amount of photoinitiator on the adhesion properties and the correlation between the chemical structure of photoinitiator and the adhesion properties of acrylic PSA was investigated. 2-ethylhexyl acrylate(2-EHA) and acrylic acid(AA) were used for main-monomer and co-monomer, respectively. Benzyldimethyl ketal(BDK, Irgacure® 651), Methyl- benzoylformate(MBF, Darocur® MBF), 1-Hydroxy-cyclohexyl-phenyl-ketone (HCPK, Irgacure® 184), 2-Hydroxy-2-methy-1-phenyl-propane-1-one (HMPP, Darocur® 1173) and Bis(2,4,6-trimethyl benzoyl)-phenyl phosphine oxide (BAPO, Irgacure® 819) were used for our studies.
Adhesion properties were monitored by tack and peel strength of PSA using a prove tack tester and a universal testing machine after the UV polymerization, respectively.
BDK(Irgacure® 651) gives the best adhesion properties of all the photo- initiators in our studies, which may be attributed to its strong absorption far and near 350nm wavelength and good solubility in monomer mixture. Acrylic copolymer with α-hydroxy alkyl phenones derivative, HCPK(Irgacure® 184) and HMPP(Darocur® 1173) having a weak absorption at long wavelength, exhibits poor adhesion properties. These may be also due to the intra-molecular hydrogen bond between α-hydroxy-substituent and carbonyl group, which gives a negative effect on polymerization. It is observed that BAPO(Irgacure® 819) exhibits cohesive failure with high loading, which may due to low solubility in monomer mixture though its high absorptivity at long wavelength region. It can be thought that this poor adhesion properties may be attributed to the migration of insoluble photoinitiators.
The key point of this study is preparation of solvent-free acrylic PSA by UV radiation. Effect of amount of photoinitiator on the adhesion properties and the correlation between the chemical structure of photoinitiator and the adhesion properties of acrylic PSA was investigated. 2-ethylhexyl acrylate(2-EHA) and acrylic acid(AA) were used for main-monomer and co-monomer, respectively. Benzyldimethyl ketal(BDK, Irgacure® 651), Methyl- benzoylformate(MBF, Darocur® MBF), 1-Hydroxy-cyclohexyl-phenyl-ketone (HCPK, Irgacure® 184), 2-Hydroxy-2-methy-1-phenyl-propane-1-one (HMPP, Darocur® 1173) and Bis(2,4,6-trimethyl benzoyl)-phenyl phosphine oxide (BAPO, Irgacure® 819) were used for our studies.
Adhesion properties were monitored by tack and peel strength of PSA using a prove tack tester and a universal testing machine after the UV polymerization, respectively.
BDK(Irgacure® 651) gives the best adhesion properties of all the photo- initiators in our studies, which may be attributed to its strong absorption far and near 350nm wavelength and good solubility in monomer mixture. Acrylic copolymer with α-hydroxy alkyl phenones derivative, HCPK(Irgacure® 184) and HMPP(Darocur® 1173) having a weak absorption at long wavelength, exhibits poor adhesion properties. These may be also due to the intra-molecular hydrogen bond between α-hydroxy-substituent and carbonyl group, which gives a negative effect on polymerization. It is observed that BAPO(Irgacure® 819) exhibits cohesive failure with high loading, which may due to low solubility in monomer mixture though its high absorptivity at long wavelength region. It can be thought that this poor adhesion properties may be attributed to the migration of insoluble photoinitiators.
목차
- Ⅰ. 서론 1Ⅱ. 실험 및 분석 71. 시약 72. 점착제 제조 및 분석 112-1. 합성 112-2. 점착제 제조 112-3. 분석 133. 접착 물성 측정 143-1. 초기 접착력(Tack) 143-2. 박리강도(Peel strength) 144. 표면 에너지 15Ⅲ. 결과 및 고찰 161. 점착제 분석 162. 접착물성 232-1. 초기 접착력(Tack) 232-2. 박리강도(Peel strength) 263. 표면 에너지 34Ⅳ. 결론 37Ⅴ. 참고문헌 39Ⅵ. 영문초록 42
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