초록

무기난연제인 수산화알루미늄과 수산화마그네슘을 50nm 이하의 나노 업자로 제조하고, 이것을 core로 하는 core-shell 유화 중합법으로 친환경 무기 난연 점착제를 제조하는 것이다. 제조된 점착제를 인테리어 점착 필름에 직접 적용하여 기존 할로겐 난연제 함유 용제형 점착제와 동일한 점착 성능 (peeling strength, ball tack), 작업성, 코팅성 (내수성, 젖음성) 및 난연성을 확보하는 것이 핵심 기술이라 할 수 있다.

Abstract ▼

Recently great attention has been paid to the use of halogen free flame retardants, for example aluminium trihydrate or magnesium hydroxide. It is because that these materials do not cause environmental pollution, such as toxicity, heavy smoke and corrosion. Additionally, conventional solvent based

Recently great attention has been paid to the use of halogen free flame retardants, for example aluminium trihydrate or magnesium hydroxide. It is because that these materials do not cause environmental pollution, such as toxicity, heavy smoke and corrosion. Additionally, conventional solvent based pressure sensitive adhesive contains a great amount of volatile organic solvent and causes serious environmental problem such as greenhouse effect and skin cancer. Therefor it is necessary to develop a nontoxic flame retardant pressure sensitive adhesive composite composed of a water based emulsion type pressure sensitive adhesive and aluminium trihydrate or magnesium hydroxide.
In this subject, we successfully develop the environmental friendly flame retardant pressure sensitive adhesive consist of nano-sized inorganic core and polymeric shell by the core/shell emulsion polymerization. The particle size of the developed aluminium trihydrate is smaller than 50 nm and these nanoparticles were used as a core of the core/shell water based pressure sensitive adhesive.
The most important point of this work is to achieve same or higher performances such as flame retardant property, peeling strength, ball tack, cohesiveness, workability, water resistance, and wettability in compare with the conventional solvent based flame retardant pressure sensitive adhesive including halogen flame retardant without discharging any volatile organic solvent and any toxic gas such as halogen gas.
As a result of this project, we successfully prepared aluminium trihydrate nanoparticles as inorganic flame retardant with particle size about 50 nm by utilizing various dispersion methods as well as various additives and surfactant. In order to obtain core/shell morphology, it was necessary to modify the surface. of inorganic nanoparticles with silane coupling agent. And then shell polymerization carried out on the surface of the modified inorganic nanoparticles by the interfacial polymerization. The water resistance of water based pressure sensitive adhesive was confirmed by measuring visible light reflection spectrum of dried film after immersing in $100^{\circ}C$ for 10 minute. The wettability of the final product was enough to apply to conventional knife coating process. The peeling strength and the ball tack were higher than 2.5kgf/25mm and No. $8\sim10$, respectively. The holding power of the developed flame retardant pressure sensitive adhesive was longer than a hour. The flame retardant performance of the final product was determined by the limiting oxygen index method and LOI value was found to be more than 30.

목차 Contents

• 표지...1
• 최종보고서...2
• 제출문...3
• 요약문...4
• SUMMARY...6
• Contents...8
• 목차...9
• 제 1 장. 서론...15
• 제 1 절. 기술개발의 중요성 (필요성)...15
• 1. 점착제...15
• 2. 난연제...16
• 3. 유기계 난연성 점착제의 환경적 문제점 및 기술적 애로...17
• 4. 수계 아크릴 에멀젼 접착제...18
• 제 2 절. 연구개발의 개요...19
• 제 2 장. 국내의 기술개발 현황...20
• 제 1 절. 국외 기술개발 동향...20
• 1. 수계 에멀젼형 접착제의 기술 동향...20
• 2. 용제계 난연성 점착제의 기술 동향...21
• 제 2 절. 국내 기술개발 동향...23
• 1. 수계 에멀젼형 접착제의 기술 동향...23
• 2. 유기계 난연성 점착제의 기술 동향...23
• 3. 국내외 유사 과제와의 기술내용의 차별성...24
• 4. 기술개발 시 예상되는 파급효과 및 활용방안...25
• 제 3 장. 연구 개발 수행 내용 몇 결과...27
• 제 1 절. 이론적 배경...27
• 1. 점착제 (Pressure Sensitive Adhesives)...27
• 2. 무기 나노 입자 제조...31
• 3. 유화중합 기 술 (Emulsion polymerization)...42
• 4. 무기업자의 표면개질과 코어-셀 중합...54
• 제 2 절. 난연성 수계 점착제 제조...72
• 제 3 절. 나노 무기 업자를 사용하여 난연성 수계 점착제 제조...78
• 1. Lab-scale 유화중합...78
• 2. 상업용 샘플 제작을 위한 유화중합 및 TGA 분석...84
• 3. 주관기관 유화중합...93
• 제 4 절. 코어셀 중합 (Core-shell polymerization)...109
• 1. 무기 입자의 표면개질...111
• 2. 코어-셀 중합...115
• 3. 주관기관의 Core-shell 난연 수성 점착제의 제조...131
• 제 4 장. 연구개발 목표 달성도 및 대외 기여도...165
• 제 1 절. 연구개발 목표 달성도...165
• 제 2 절. 본 개발의 대외 기여도...170
• 제 5 장. 연구 개발 결과의 활용 계획...172