摘要:
PURPOSE: A moisture-curing(one pack type) polyurethane resin composition has good adhesiveness, short solidification time, excellent workability, little harmfulness for human body, and little effect of skin irritation or environmental hormone. CONSTITUTION: A moisture-curing(one pack type) polyurethane resin composition comprises a more than two functional isocyanate compound and polyol as active ingredients, and one or more components selected from chain extender, crosslinking agent, diluent, and catalyst. The more than two functional isocyanate compound is selected from toluene diisocyanate, diphenylmethane diisocyanate, polymeric diphenylmethane diisocyanate, tolidine diisocyanate, p-phenylene isocyanate, hexamethylene diisocyanate, hydrogenated diphenylmethane diisocyanate, and isophorone diisocyanate.
摘要:
PURPOSE: An aqueous alkali silicate based surface reinforcing agent and a manufacturing method of the concrete surface reinforcing agent and a concrete surface reinforcing method using the same are provided to enhance penetrability and strong water repellency on concrete surface. CONSTITUTION: An aqueous alkali silicate based surface reinforcing agent comprises alkali silicate, potassium methyl silicate(PMS), a gelation time controlling agent and an anti-freezer. 2-20 weight% of methyl potassium silicate is included based on total weight of the concrete surface intensifier. 2-10 weight% of the gelation time controlling agent is included based on total weight of the concrete surface intensifier. 10-20 weight% of the anti-freezer is included based on total weight of the concrete surface intensifier. A manufacturing method of aqueous alkali silicate based concrete surface intensifier comprises the following steps: manufacturing aqueous solution by dissolving one of anti-freezer, a surface tension reducing agent, or a mixture thereof into distilled water; manufacturing a mixture by successively adding and stirring alkali silicate and methyl potassium silicate (PMS) into the solution; adding and stirring the gelation time controlling agent with the mixture; and filtering the solution.
摘要:
본 발명은 습기경화형(1액형) 폴리우레탄 수지 조성물에 관한 것으로, 상기 조성물은 2 관능성 이상의 이소시아네이트 화합물과 폴리올을 유효성분으로 포함하여 구성되며, 상기에 더하여 접착성 및 기계적 물성을 증진시키기 위해 사슬연장제, 가교결합제, 희석제, 촉매 등을 포함하고, 또한 저장안정성 보강 및 증량 효과를 얻기 위해 기능성첨가제, 흡습제, 충전재 등을 더 포함할 수 있다. 본 발명에 따른 습기경화형(1액형) 폴리우레탄 수지 조성물은 접착력이 좋고, 고화시간이 짧으며, 작업성이 우수할 뿐만 아니라 약용제형으로서 인체에 유해성이 적고, 피부자극이나 환경호르몬에 의한 인체에 미치는 영향이 거의 없는 친환경성으로, 자동차, 항공기, 고속전철, 선박, 건축물, 주택 내장/바닥재용 탄성접착제, 건축용 도료, 접착제, 실링제(CAS) 등 여러 산업 분야에 적용 가능하다.