PREPARING METHOD OF ANTICORROSIVE COATING SOLUTION FOR ZINC COATED STEEL SHEET USING TITANIUM COMPLEX COMPOUND ITS COATING SOLUTION AND ZINC COATED STEEL SHEET

• Main Authors: CHO, DU HWAN, OH, JONG GI, KIM, YEONG BONG
• Format: Patent
• Language: English; Korean
• Published: 29.04.2004
• Edition: 7
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE: Provided is an environmental-friendly anticorrosive coating solution for a zinc-plated steel sheet, which is easily prepared by a method without using chrome, and has excellent anticorrosion, appearance and solution stability. CONSTITUTION: The anticorrosive coating solution for a zinc-plated steel sheet is prepared by the method comprising the steps of adding to colloidal silica solution, at least one Ti-based complex selected from the group consisting of £Ti(L1)(L2)|, £Ti(L2)2(L3)2| and £Ti(L4)2(L5)2|(NH4)2, wherein Li is triethanolaminato, L2 is isopropoxide, L3 is acetylacetonate, L4 is ammonium lactato and L5 is hydroxide, or a mixture thereof, in an amount of 5 to 30 wt%. 본 발명은 아연 도금강판용 방청코팅용액 제조방법에 관한 것으로, 콜로이드 실리카 용액에, [화학식 1] [Ti(L)(L)], [화학식 2] [Ti(L)(L)] 및 [화학식 3] [Ti(L)(L)](NH)(여기서, L=트리에탄올아미네이토, L=이소프로폭시드, L=아세틸아세토네이트, L=락테이토이며 그리고 L=히드록시드임)으로 구성된 그룹으로부터 선택된 최소 하나의 Ti-계 착화합물 또는 이들의 혼합물을 중량비로 5-30중량%로 첨가하여 제조됨을 특징으로 하는 아연 도금강판용 방청코팅용액 제조방법, 이로부터 제조된 아연도금 강판용 방청코팅용액 및 아연도금 강판이 제공된다. 본 발명에 의해 크롬을 사용하지않고, Ti-계 착화합물을 이용하여 환경친화적인 고내식성 아연 도금강판용 방청 코팅용액을 제조할 수 있다.