MỘT SỐ KẾT QUẢ KHẢO SÁT TÍNH CHẤT CƠ LÝ VÀ KHẢ NĂNG CHỐNG HÀ CỦA SƠN EPOXY KẾT HỢP NANOCOMPOSITE Cu/SiO2

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Tác giả: ĐÌNH TRUNG ĐỖ, NGỌC LINH NGUYỄN

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Công nghệ Hàng hải, 2023

Mô tả vật lý: tr.51

Bộ sưu tập: Metadata

ID: 341611

Thêm vào giỏ Liên kết toàn văn

Đối với ngành hàng hải, thiệt hại từ những mảng lớn hà bám trên các vỏ tàu thuyền cũng như các công trình trên biển là vô cùng lớn. Hà bám trên bề mặt vỏ tàu làm tăng lực cản của nước biển lên thân tàu, giảm tính cơ động và hiệu suất hoạt động của tàu. Bài báo trình bày một số kết quả khảo sát tính chất cơ lý và khả năng chống hà của lớp phủ epoxy trên cơ sở nhựa epoxy (YD-128) và chất đóng rắn (G-5022) kết hợp nanocomposite Cu/SiO2. Các tính chất cơ lý và thử nghiệm khả năng chống ăn mòn của lớp phủ epoxy được xác định theo tiêu chuẩn Việt Nam, thử nghiệm khả năng chống hà được tiến hành theo ASTM D3623-78a. Kết quả nghiên cứu cho thấy, lớp phủ epoxy kết hợp với 1,0% nano Cu/SiO2 làm tăng độ bám dính lên 14,57%, độ bền va đập tăng 9,09%, độ cứng màng sơn tăng 9,69%, độ mài mòn giảm 20,00%, độ gỉ đạt mức S0 sau 30 chu kỳ thử nghiệm mù muối. Sau 6 tháng thử nghiệm trong môi trường biển, phân bậc bám bẩn sinh học được đánh giá ở Bậc 4.For the maritime industry, the damage from large plaques on the hulls of ships as well as structures at sea is enormous. Growth of fouling on a hull’s surface increases the resistance of sea water to the ship, reduces the maneuverability and performance of the ship. This paper examined the influence of Cu/SiO2 nanoparticles on physico-mechanical properties and antifouling of epoxy paint which combined epoxy resin YD-128 and hardener G-5022 with additive of nanocomposite Cu/SiO2. The physico- mechanical properties and anticorrosion test of epoxy coating are determined according to Vietnam standards, antifouling test of coating is carried out according to ASTM D3623-78a. The survey results showwed that, the epoxy coating with additive of 1.0% Cu/SiO2 nanoparticles, adhesion increased by 14.57%, impact resistance increased by 9.09%, hardness of epoxy coating increased by 9.69%, abrasion resistance decreased by 20.0%, the degree of rusting reached S0 after 30 cycles of salt fog testing. After 6 months of natural testing in the marine environment, the biofouling classification is assessed at level 4.

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