Rare earth isoprene rubber for 40% replacement of natural rubber

The National Science and Technology Support Project “Isoprene rubber production technology development” jointly undertaken by the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences and the China Petroleum Jilin Petrochemical Branch Research Institute has made important progress recently. The rare earth isoprene rubber pilot product has been successfully applied to all steel trucks. Meridian tires can replace natural rubber by 40%. Tested and evaluated by the China Rubber Industry Association Material Testing and Research Center, the molding, processing and performance of tires are not affected. At present, Jilin Petrochemical Company is building a 1,000-ton isoprene rubber production plant, which will be delivered and accepted in the first half of 2011.

Isoprene rubber, also known as "synthetic natural rubber", is the best substitute for natural rubber due to its structure is closest to natural rubber. It can be widely used in tires, tapes, rubber hoses and other rubber applications. It is the seven basic types of synthetic rubber. The only type of rubber that could not be industrialized in China. The realization of industrialization of isoprene rubber as soon as possible can not only solve the problem of insufficient natural rubber resources in China, but also promote the comprehensive utilization of carbon five fractions. Changchun Yinghua Institute of the Chinese Academy of Sciences and PetroChina Jilin Petrochemical Company developed the production technology of isoprene rubber under the support of the “Technology Development of Isoprene Rubber Production” of the National Science and Technology Support Program. He has made important breakthroughs in catalysts, polymerization and agglomeration processes, control of cis-isomer content, molecular weight and distribution of isoprene rubber, and was the first to have independent intellectual property rights, high molecular weight, narrow molecular weight distribution and high cis-1,4 structure content in China. The new rare earth isoprene rubber, and carried out a large number of tests on a 20-liter continuous polymerization molding test device, developed a pilot product, and successfully applied to all-steel radial tires.

Bitumen Heating Storage Equipment

Asphalt heating storage equipment is an important road construction equipment, mainly used to heat and store asphalt in order to carry out road construction and maintenance when needed. The equipment has the characteristics of high efficiency, safety and environmental protection, and can provide stable asphalt supply for road construction.

Asphalt heating storage equipment is mainly composed of heating device, storage tank and control system. The heating unit uses oil or gas burners to transfer heat to the asphalt to heat it to the proper temperature. Storage tanks are large containers used to store heated asphalt, generally made of high-temperature resistant materials. The control system is responsible for monitoring the operating status of the equipment and the temperature of the asphalt to ensure the safe and stable operation of the equipment.

The heating principle of asphalt heating storage equipment is to transfer heat to asphalt through thermal conduction, so that it is heated. Heating devices are generally divided into direct heating and indirect heating in two ways. Direct heating is the use of the burner directly into the storage tank, hot air through the contact of hot air with the asphalt to heat it. Indirect heating is the use of heat exchangers to heat the asphalt in the storage tank without direct contact with the air. The two heating methods have advantages and disadvantages, and need to be selected according to the actual situation.

Asphalt heating storage equipment heating speed, can quickly heat asphalt to the use of temperature, improve production efficiency. At the same time, the equipment also has environmental protection characteristics, reducing exhaust gas and smoke emissions, reducing the impact on the environment. In addition, the operation of asphalt heating storage equipment is simple and easy to maintain, which can meet the needs of various road construction and maintenance projects.

In short, asphalt heating storage equipment is an important road construction equipment, with high efficiency, safety, environmental protection and other characteristics. It can provide a stable supply of asphalt for road construction, improve construction efficiency, reduce the impact on the environment and waste of resources. The equipment has a wide application prospect in the field of road construction.

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