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이승환 ( Seung Hwan Lee ),천정미 ( Jung Mi Cheon ),정부영 ( Boo Young Jeong ),김한도 ( Han Do Kim ),천제환 ( Jae Hwan Chun ) 한국접착및계면학회 2015 접착 및 계면 Vol.16 No.4
본 연구에서는 수분산 폴리우레탄 아크릴레이트의 접착력 및 물성을 향상시키기 위하여 polyester polyol, 4,4-dicyclohexylmethane diisocyanate (H12MDI), dimethylol propionic acid (DMPA), acrylate monomer를 사용하여 수분산 폴리우레탄 아크릴레이트를 합성하였다. 또한 합성된 수분산 폴리우레탄 아크릴레이트의 물성은 FT-IR, 입도분석, UTM, 접착력 등을 평가하였다. 입도 분석에서 아크릴산의 함량이 증가함에 따라 입자의 크기가 증가하였고, 기계적 물성을 평가한 결과, 아크릴산의 함량이 증가함에 따라 인장강도는 증가하였고 신율은 감소하였다. 접착강도는 PU/acryl 비율 중 acryl의 함량이 증가, 아크릴산의 함량이 증가할수록 증가하였다. 아크릴산의 함량이 0.5 wt%일 때가장 높은 접착강도를 나타내었다. In this study, waterborne polyurethane acrylate were synthesized with polyester polyol, 4,4-dicyclohexylmethane diisocyanate (H12MDI), dimethylol propionic acid (DMPA), acrylate monomer to improve the properties and peel strength. In addition, the properties of the synthesized waterborne polyurethane acylate was evaluated through FT-IR, particle size analysis, UTM, peel strength. As the acrylic acid content increased, particle size increased. In the results of mechanical properties, when the acrylic acid contents increased, tensile strength was increased but elongation was decreased. All peel strength was improved as the acrylic acid contents of WPUA and acrylate ratio of PU/acrylate increased. Optimum peel strength obtained when acrylic acid was 0.5 wt%.
점착부여제 투입 방법에 따른 아크릴 에멀젼의 점착 특성 연구
정부영 ( Boo Young Jeong ),천제환 ( Jae Hwan Chun ),천정미 ( Jung Mi Cheon ),박기호 ( Gi Ho Park ) 한국접착및계면학회 2012 접착 및 계면 Vol.13 No.2
In this study, the properties of acryl emulsion with adjunction procedures of tackifier resin and tackifier emulsion were investigated. Glass transition temperature of acryl emulsions was increased with the content of tackifiers. The initial strength showed the maximum value when the contents of tackifier resin and tackifier emulsion were 10 phr and 15 phr, respectively. Additionally, the strengths on heat and water resistances were increased with the contents of tackifier.