랩핑용으로 이동이 가능한 아크릴계점착제의 합성
- Abstract
- The pressure sensitive adhesive (PSA) which is able to apply in solvent-inkjet-printing and silk-screen-printing was synthesized. The sheets produced by the PAS have normally used to do vehicle-wrapping or outdoor advertisement. They should easily be removed after advertisement in short-period and not be any transferring when they are removed from the surface. Moreover, reposition ability is required to attach the sheets to the surface for advertisement without any transforming when they are reattached because attaching-and-removing is normally repeated for finishing it correctly. Those why the PSA must have removability, no-transferring from the surface and reposition ability.
A model PSA was prepared using an acrylic block copolymer synthesized by 2-ethyl hexyl acrylate (2-EHA), butyl acrylate(BA), ethyl acrylate(EA), methyl acrylate(MA) and methyl methacrylate(MMA) various base monomers, functional monomers and azobisisobutyronitrile(AIBN) as a catalyst. The copolymers were obtained by different glass-transition temperatures according to the ratio of BA, EA and AA. Molecular weight was controlled by solvent concentration and HDI trimer was used for crosslinking. 3～5% rosin ester and terpene resins were also added to improve a property. Peel strength, ball tack, holding power test of the copolymers were evaluated.
- Issued Date
- 2015
- Awarded Date
- 2015. 2
- Type
- Dissertation
- Publisher
- 부경대학교
- Affiliation
- 응용화학공학과
- Department
- 산업대학원 고분자공학과
- Advisor
- 이원기
- Table Of Contents
- Contents
Contents···············································································································································ⅰ
List of Tables···································································································································ⅳ
List of Figures·································································································································ⅴ
Abstract···············································································································································ⅵ
제1장 서론·········································································································································· ··1
1-1. 배경··········································································································································1
1-2. 점착제·····································································································································3
1-3. 점착부여수지························································································································6
1-3-1. 점착부여수지의 종류와 특성····························································································6
제2장 아크릴 점착제의 합성··········································································································9
2-1. 실험·······································································································································10
2-1-1. 시약································································································································10
2-1-2. 반응 메커니즘············································································································12
2-1-3. 실험방법·······················································································································14
2-2. 측정 및 분석·····················································································································16
2-2-1. 고형분(Solid content) 측정··················································································16
2-2-3. 겔 분율(Gel fraction)······························································································16
2-2-4. 유리전이온도(Glass transition temperature) 측정·······································17
2-2-5. 겔 투과 크로마토그래피(GPC) 분석··································································17
2-2-6. FT-IR 분석················································································································17
2-3. 평가방법·····························································································································18
2-3-1. 점착력··························································································································18
2-3-1-1. 상온 점착력(Peel strength at room temperature)·······························18
2-3-1-2. 내열 점착력(Peel strength after aging by heating)···························18
2-3-2. 수축률(Contraction percentage)·········································································18
2-3-3. 유지력(Holding power)·························································································19
2-3-4. Ball tack·····················································································································20
2-3-5. 굴곡부 시험(Flexures test)·················································································21
2-3-6. Reposition··················································································································22
2-3-7. 점착제 전이(Transfer of PSA)·········································································22 2-3-8. Air free······················································································································22
2-4. 시편 제조·····························································································································23
2-4-1. 지지체·························································································································23
2-4-2. 피착제·························································································································23
2-4-3. 코팅과 합지··············································································································23
2-4-4. 점착 시트의 숙성···································································································23
제 3 장 결과 및 고찰····················································································································24
3-1. 모노머 농도에 따른 영향·····························································································24
3-2. 가교도와 분자량에 따른 영향····················································································27
3-3. 모노머 조성에 의한 개선·····························································································44
3-3-1. 점착력··························································································································54
3-3-2. Ball tack·····················································································································57
3-3-3. 굴곡부시험·················································································································57
3-3-4. Air free·······················································································································57
3-3-5. 유지력··························································································································57
3-3-6. 오염성(전이)··············································································································57
3-3-7. Reposition···················································································································58
3-3-8. 수축률··························································································································58
3-4. 점착부여수지에 의한 개선···························································································59
3-4-1. 점착력··························································································································63
3-4-2. Ball tack, air free 와reposition·········································································68
3-4-3. 굴곡부시험·················································································································68
3-4-4. 오염성(전이)··············································································································68
3-3-5. 그 외 물성·················································································································68
3-5. 분석·······································································································································69
3-5-1. FT-IR 분석···············································································································69
3-5-2. DSC································································································································70
3-5-3. GPC································································································································71
제 4 장 결론······································································································································72
References··········································································································································75
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랩핑용으로 이동이 가능한 아크릴계점착제의 합성.pdf
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