Abstract
As environmental issues is important thing, our study aims to develop natural adhesives made by rosin instead of synthesis adhesive with the formaldehyde emission. Natural adhesives were formulated to enhance curing speed and adhesion performances with various drying agent contents. Adhesion performances were evaluated with tack values measured by texture analyzer and shear strengths determined by single lap shear test. The adhesion performances of nature adhesives developed in this study and compared with those of overseas natural adhesives made by AURO, BioFa, Livos. Optimum drying agent formulation was Co 0.7 part, Zr 1.0 part, Ca 0.5 part, and Activ8 0.1 part. Shear strength of the adhesives manufactured by the optimum drying agent formulation was $93.2{\pm}19.1N/cm^2$.
환경문제의 대두에 따라 포름알데히드를 방산하는 접착제를 대신할 수 있도록 로진을 이용한 천연접착제를 개발하고자 한다. 경화속도와 접착물성을 향상시키기 위해 건조제의 배합에 따라 천연접착제를 제조하였다. 건조제의 배합에 따른 경화속도와 접착물성을 Texture Analyzer를 이용하여 얻어진 tack값과 single lap shear test를 통해 얻어진 접착력을 기반으로 평가하였으며, 외국에서 사용되고 있는 AURO, BioFa, Livos의 식물계 천연접착제와의 성능을 비교 분석하였다. 최적의 배합비는 Co 0.7 part, Zr 1.0 part, Ca 0.5 part, Activ8 0.1 part를 첨가하였을 때이며, 이 때의 접착력은 $93.2{\pm}19.1N/cm^2$의 수준에 도달하였다.
