tailieunhanh - Research and development of polyurea pavement marking paint

Pavement markings make an important contribution to the safety of people and vehicles on roads. Many types of pavement marking materials have been used, and most recently, polyurea materials have been used as a binder in pavement marking paint. This type of paint has high retro-reflection and durability, so it has been widely applied for use at airports and on highways around the world. This article introduces the results of our research and the making of polyurea pavement marking paint using the formula: binder/harder ratio ( by weight), 42% of pigment and filler, 10% of reflective balls, rheological additive, and dispersive additive to create outstanding features (retro-reflection > 260 mcd/m2 /lux). | PHYSICAL SCIENCES ENGINEERING Research and development of polyurea pavement marking paint Thi Bich Thuy Nguyen1 Ngoc Ly Le1 Hong Chuyen Pham1 Van Tai Do2 Hai Ninh Tran3 Dang Khoa Nguyen4 University of Transport Technology 2Institute of Transport Science and Technology 3Hanoi University of Science and Technology 4Vietnam Institute for Building Science and Technology Received 8 May 2017 accepted 31 August 2017 Abstract Pavement markings make an important contribution to the safety of people and vehicles on roads. Many types of pavement marking materials have been used and most recently polyurea materials have been used as a binder in pavement marking paint. This type of paint has high retro-reflection and durability so it has been widely applied for use at airports and on highways around the world. This article introduces the results of our research and the making of polyurea pavement marking paint using the formula binder harder ratio 1 by weight 42 of pigment and filler 10 of reflective balls rheological additive and dispersive additive to create outstanding features retro-reflection 260 mcd m2 lux . Keywords pavement marking material polyurea retroreflection. Classification number Introduction Outlined reflective traffic guides serve an important role in controlling the flow of traffic. The painted lines on roads include centerline stripes lane dividing lines and marked areas due to obstacles parking areas road signs and walkways. The standards of these marking materials consider their durability dry time and their impact on the environment 1 2 . Currently in Vietnam solvent reflective marking paints based on alkyd resins or styrene acrylic are usually used in the transport sector. It has been found that signal reflective paints based on alkyd resins and solvents provide better visibility for pedestrians both during the day and at night compared to signal reflective paints that are based on thermosetting plastics. Under oxidation alkyd paints become .