Trinh Van Dung in Ho Chi Minh City University of Technology has successfully research and manufacture of brake pads from cashew nut shell oil, fuel savings and limit harm to the environment.
According to the Vietnamese standard long brake pads are made from phenol-formaldehyde (PF), amiant crizotil (30-70%) and other additives.
Brake is an important part of the brake system for road vehicles, but are damaged or need to be replaced. Plastic
from PF brake pads achieve the required high mechanical properties, but in terms of impact, reduce wear, thermal, waterproof, flexible, resistant to low temperatures. In addition, in 1986, the environmental protection agency prohibiting use asbestos crizotil to manufacture brake pads, as this is the cause of lung cancer is bad for the health and environmental impact.
From January 12-2004, Dr. Trinh Van Dung, Research Center for Petrochemical Filter-Ho Chi Minh City University of Technology, chose to perform research and technology manufacturing equipment to make pulp friction from cashew nut shell oil for manufacture of brake pads for road vehicles.
By studying the composition of cashew nut shell, the authors found that no oil mixture of natural alkyl phenol, which is reddish brown viscous liquid, slightly soluble in water, insoluble in alcohol and ether ... The chemical composition of cashew nut shell oil is cardanol, Cardol, 2-Methyl Cardol and the polymer of them, so of both phenol same nature as nature dry or oil mixture. Specializing in the production of oil, cashew dry after the spin we will processed into oil.
From these studies, Dr. Zheng Van Dung took advantage of this physical and chemical properties of the oil cashew nut shell to produce the curing resin and friction material used to make brake pads brakes. Especially authors working on the screw agitator with two horizontal reverse suitable for the manufacture of friction. This device has two functions that mix and crush the product, should avoid the adhesion of the mixture. At the same time break the outer product of solid particles makes the reaction faster and more thoroughly.
By May 4-2006, the authors have created the first prototype and has been introduced in the scientific and DOST City Council. Dr. Phan Minh Tan, deputy director of the Department comment: " This is research in the field of use of raw materials in the country should be the direction is consistent with the general trend ".
From January 12-2004, Dr. Trinh Van Dung, Research Center for Petrochemical Filter-Ho Chi Minh City University of Technology, chose to perform research and technology manufacturing equipment to make pulp friction from cashew nut shell oil for manufacture of brake pads for road vehicles.
By studying the composition of cashew nut shell, the authors found that no oil mixture of natural alkyl phenol, which is reddish brown viscous liquid, slightly soluble in water, insoluble in alcohol and ether ... The chemical composition of cashew nut shell oil is cardanol, Cardol, 2-Methyl Cardol and the polymer of them, so of both phenol same nature as nature dry or oil mixture. Specializing in the production of oil, cashew dry after the spin we will processed into oil.
From these studies, Dr. Zheng Van Dung took advantage of this physical and chemical properties of the oil cashew nut shell to produce the curing resin and friction material used to make brake pads brakes. Especially authors working on the screw agitator with two horizontal reverse suitable for the manufacture of friction. This device has two functions that mix and crush the product, should avoid the adhesion of the mixture. At the same time break the outer product of solid particles makes the reaction faster and more thoroughly.
By May 4-2006, the authors have created the first prototype and has been introduced in the scientific and DOST City Council. Dr. Phan Minh Tan, deputy director of the Department comment: " This is research in the field of use of raw materials in the country should be the direction is consistent with the general trend ".
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