• Title/Summary/Keyword: urethane-acryl hybrid

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Preparation of Pressure Sensitive Adhesive Using Reactive Polyurethane Resin and the Effect of Interfacial Crosslinking on the Adhesion Property (반응성 폴리우레탄 레진을 이용한 Pressure Sensitive Adhesive 제조 및 계면 가교 반응이 점착 물성에 미치는 영향)

  • Shin, Jin Sup;Kim, Ji Heon;Cheong, In Woo;Kim, Jung Hyun
    • Applied Chemistry for Engineering
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    • v.16 no.1
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    • pp.81-85
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    • 2005
  • Pressure sensitive adhesive (PSA) was prepared by semi-batch emulsion polymerization of acryl monomers in the presence of reactive and non-reactive carboxylated polyurethane resin (PUR). Effects of the PUR type, its content, and crosslinker feeding method on the adhesive properties of the PSA was investigated. In this experiment, the PSA prepared with the reactive PUR showed better adhesive property then the PSA with the non-reactive PUR. Especially, peel strength of the PSA, where acetoacetoxy ethyl methacrylate and 1,6-hexane diamine as crosslinkers were introduced, was dramatically enhanced in severe humidity condition due to the interfacial crosslinking.

Study on Heat-shield Property of Surface-treated Inorganic Oxide Particles (표면처리된 무기산화물 입자의 열차단 특성에 관한 연구)

  • Kim, Dong Ho;Kim, Gu Ni
    • Journal of Adhesion and Interface
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    • v.14 no.1
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    • pp.28-35
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    • 2013
  • In this study, we produced heat-shield coating materials using surface-treated Ga-doped ZnO (GZO) and investigated the dispersity of particle, visible light transmittance, ultraviolet light cut off, infrared light cut-off, heat-shielding property by surface-treating compounds and treatment conditions. In the case of using IPA or acryl binder for heat-shield coating, the dispersity of inorganic oxide particles was poor but in the case of using surface-treated inorganic oxide particles by hybrid compound having urethane (urea) group, acryl group and silica, dispersity of particle, visible light transmittance and haze were improved. We used the measurement kit and sunlamp for measuring heat-shielding property and confirmed that the internal temperature of the measurement kit using heat-shield film was lower more than $4.8^{\circ}C$ in comparison with using PET film for itself.