The effect of nanocarbon materials structures on the perfomances of epoxy-Based paint coating for steel surfaces - Phan Thi Thuy Hang4. CONCLUSIONS The physico-mechanical properties and corrosion protective ability of the epoxy paint coatings have been significantly improved by adding only 0.1 wt% of nanocarbon materials in the epoxy binder notably. In there the corrosion protective property for steel was enhanced greatly, which is higher over three times than original epoxy...
9 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 480 | Lượt tải: 0
Bài giảng Hóa vô cơ - Chương 2: Phân nhóm IIACác phương pháp làm mềm nước cứng: - Vật lý (đun sôi): Ca(HCO3)2 CaCO3 + CO2 + H2O - Hóa học: dùng soda - sữa vôi; Na3PO4 - Trao đổi ion: dùng zeolit (Na2Al2Si2O8.xH2O), nhựa trao đổi ion
21 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 897 | Lượt tải: 1
Bài giảng Cơ sở hóa môi trường - Phần II: Giáo dục môi trường - Chương 2: Các biện pháp bảo vệ môi trường - Ngô Xuân LươngCđc rừng cấm cđc khu bảo tồn tự nhiín lă những lính thổ đặc trưng cho cđc hệ sinh thđi, cđc cảnh quan khđc nhau nhằm bảo tồn cđc mẫu chuẩn thiín nhiín cho đời sau: giữ gìn phần cơ bản vốn gien đi di truyền, gìn giữ sinh cảnh của cđc động vật quý hiếm, coi như biện phđp đầu tiín bảo vệ lă nơi để nghiín cứu, tìm hiểu cđc quy luật phđt triển vă biến đ...
17 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 479 | Lượt tải: 0
Ynthesis and characterization of GnPS/Ti-Fe binary oxide composite from ilminite of central Viet Nam using hydrothermal method - Truong Ngoc Tuan4. CONCLUSION TGG85 and TGG52 were composite materials of Ti-Fe binary oxides on GNPs base which were prepared from raw materials as titanium slag (by-product of manufacture Titanium 92 % from Binh Dinh Ilmenite) and natural graphite flakes. intermediate product GNPs was synthesized via a facile one pot method. GNPs had multilayers structure wi...
10 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 455 | Lượt tải: 0
Nvestigation of surfaces of novel iron oxides with grain and grain boundary - Nguyen Viet Long4. CONCLUSION Iron oxide particles (α-Fe2O3) with grain and grain boundary textures were prepared by improved and modified polyol methods with NaBH4 and heat treatment at high temperature about 900-1000 °C according to the experiences of the author. The oxide grains were analyzed for the limitation of grain growth in the micro/nanoscale ranges....
8 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 492 | Lượt tải: 0
Enhanced ferroelectricity and ferromagnetism of (Y, Ni) Co-Doped BiFeO3 materials - Dao Viet Thang4. CONCLUSIONS In summary, the effects of (Y, Ni) co-doping on the structure, ferroelectricity and ferromagnetism of the BiFeO3 material are investigated. As a result, the Bi1-xYxFe0.975Ni0.025O3 (BYFNO) (x = 0.00, 0.05, 0.10, and 0.15) materials behave a single phase of crystalline perovskite-type rhombohedral structure (R3C). It is found that...
6 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 469 | Lượt tải: 0
Near infrared – emitting Zn2SiO4 powders produced by high-Energy planetary ball milling technique4. CONCLUSION Near infrared Zn2SiO4 phosphor has been produced successfully by high-energy ball milling technique followed by annealing in air. The XRD and Raman measurements reveal the formation of Zn2SiO4 phase with the annealing temperature of 1250 C. This high-temperature annealing powder emits intensively in the near infrared peaking at 74...
7 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 475 | Lượt tải: 0
Study on synthesis of MnFe2O4/GnPS composite and application on heavy metal removal - Nguyen Duy Anh4. CONCLUSION By usinng solvothermal method, graphene nanoplatelets and its magnetic composite MnFe2O4/GNPs were succesfully synthesized, as confirmed by XRD method. The condition of reaction was studied and 200 °C was the proper temperature, at lower temperature, undesired products were formed instead. The morphology and size of crystal were e...
8 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 453 | Lượt tải: 0
Bài giảng Hóa công nghệ - Chương 2: Sản xuất Axit SunfuricNhiệm vụ tháp tăng ẩm: • Tăng kích thước hạt mù axit • Giảm nhiệt độ xuống thêm 3-50C Nếu quặng chứa nhiều hợp chất flo (HF, SiF4) thì dùng kiểu tháp rửa I, ngược lại dùng tháp rửa II
50 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 738 | Lượt tải: 0
Fabrication and properties of co doped B9i0.5)K(0.5)TiO3 – BiFeO3 solid solution - Nguyen Hoang Tuan4. CONCLUSION In summary, we have studied the structural, magnetic properties of solid solution 0.9Bi0.5K0.5TiO3 + 0.1BiFe1-xCoxO3. The results were in good agreement with the previous reports of BKT – BFO and BKT-BCO solid solutions. The magnetic properties were investigated via unsaturated M-H loop, which showed the competition of paramagneti...
7 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 481 | Lượt tải: 0
