Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Study on Synthesis and Adhesion Properties of Water-based Acrylic Tackifier According to the Content of Chain Transfer Agent

분자량 조절제의 함량에 따른 수계 아크릴 점착부여제의 합성 및 점착 특성 연구

  • Baek, Lan-Ji (Korea Institute of Footwear & Leather Technology) ;
  • Jeong, Boo-Young (Korea Institute of Footwear & Leather Technology) ;
  • Kim, Se-Jin (Korea Institute of Footwear & Leather Technology) ;
  • Huh, PilHo (Department of Applied Chemistry and Engineering, Pusan National University) ;
  • Cheon, Jungmi (Korea Institute of Footwear & Leather Technology) ;
  • Chun, Jae-Hwan (Korea Institute of Footwear & Leather Technology)
  • Received : 2022.06.09
  • Accepted : 2022.07.04
  • Published : 2022.09.30
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Abstract

In this study, water-based acrylic tackifier with different contents of 1-dodecanethiol(n-DM), a chain transfer agent(CTA), were synthesized to improve the performance and adhesive properties of water-based acrylic pressure sensitive adhesive(PSA). In order to investigate the change in physical properties according to the amount of water-based acrylic tackifier added, 10/20/30 phr of water-based acrylic tackifier was added to the water-borne acrylic emulsion to measure the physical properties. The molecular weight and glass transition temperature(Tg) of the synthesized water-based acrylic tackifier tended to decrease as the content of n-DM increased. When a water-based acrylic tackifier was added to the water-borne acrylic emulsion, the peel strength and heat-resistance were increased. Also, when the water-based acrylic tackifiers were added at 10 phr or 20 phr, the best value was shown.

본 연구에서는 수계형 아크릴 점착제의 성능 및 점착 물성을 향상시키기 위해 분자량 조절제인 1-dodecanethiol(n-DM)의 함량이 다른 수계 아크릴 점착부여제를 합성하였으며 수계 아크릴 점착부여제의 투입량에 따른 물성 변화 확인을 위해 수분산성 아크릴 에멀젼에 수계 아크릴 점착부여제를 10/20/30 phr로 투입하여 물성을 측정하였다. 합성된 수계 아크릴 점착부여제의 분자량 및 유리전이온도(Tg)는 n-DM의 함량이 증가함에 따라 감소하는 경향을 나타내었다. 수분산성 아크릴 에멀젼에 수계 아크릴 점착부여제를 첨가하였을 때의 점착력 및 내열 유지력은 증가하였으며 수계 아크릴 점착부여제를 10 phr 또는 20 phr로 투입하였을 때에 가장 우수한 값을 나타내었다.

Keywords

Acknowledgement

본 연구는 2022년도 산업통상자원부 소재부품기술개발사업(과제번호: 20010915)의 지원에 의해 수행되었으며, 이에 감사드립니다.

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