·Beijing developed and produced the first carbon nano green fuel-efficient tire

Recently, the Beijing Municipal Science and Technology Commission supported research projects to regain technological innovation breakthroughs in recent days. The Beijing University of Chemical Industry Elastomers Center successfully developed three specifications of carbon nanotube composite materials in cooperation with Beijing Capital Co., Ltd. High performance fuel-efficient tires. The test tire fuel consumption level has reached the EU labeling method above C grade, and the antistatic performance is up to standard, thus achieving the scale application of carbon nanotubes in practical rubber products for the first time. This is also the “Beijing Nanotechnology Industry Jumping Project”, which aims to promote the rapid development of Beijing's nanotechnology and industry. It has once again achieved a world-leading scientific research result, which has enabled Beijing to seize strategic high ground in future technology and high-end manufacturing. .
Carbon nanotubes have excellent mechanical properties, electrical conductivity and thermal conductivity, and are therefore considered to be ideal mechanical strengthening and functional modification materials for polymer matrix composites. The carbon nanotubes are nano-fibrous, and are easily agglomerated and entangled by themselves; and the surface of the carbon nanotubes is a regular graphite wafer structure, the surface is inert, and the affinity with the polymer matrix is ​​poor. These all limit the scale application of carbon nanotubes and limit the possibility of converting the excellent properties of carbon nanotubes into production values.
Due to the high price of oil and the pressure of environmental protection, fuel-efficient and safe high-performance tires have become the development direction of the world tire industry. Tire fuel consumption accounts for about 40% of the vehicle's fuel consumption. Usually, every 10% reduction in tire rolling resistance can reduce fuel consumption by 1% to 2%. Developed countries and regions in Europe and the United States have been or are in the process of formulating relevant mandatory laws and regulations to promote the application of low fuel consumption and low noise safety tires and improve road transportation safety, economic efficiency and environmental efficiency. The most typical of these is the EU Tire Labeling Act, which was officially implemented in November 2012. After the implementation of the EU Tire Labeling Law, if domestic tire companies fail to launch their own fuel-efficient and high-performance tire products as soon as possible, their market share will be greatly reduced or even completely lost, causing significant losses to the economic benefits of enterprises.
In the past two years, Professor Lu Yulai from the Elastomeric Center of Beijing University of Chemical Technology led a team to further innovate and innovate the development method of carbon nanotube composite materials. Through the introduction of new coupling agents and improved processing methods, carbon nanometers have been successfully solved. The problem of poor dispersion of the tube in the rubber matrix, and the development of a high-performance high-strength carbon nanotube rubber composite material. The Elastomeric Center of Beijing University of Chemical Technology successfully applied carbon nanotube composite materials to the tread rubber of green fuel-efficient tires through cooperation with the first tires, and produced three kinds of carbon nanotube composite materials with excellent fuel economy. High-performance fuel-efficient tires (the fuel-saving index of the new fuel-efficient tires can achieve 5% fuel saving compared to the previous carbon black tires). This technological breakthrough is the first time at home and abroad, eliminating the bottleneck problem of large-scale application of carbon nanotubes in the rubber industry. In addition, the research and development technology of this project produces high-performance fuel-saving tires compared with the traditional co-extrusion of conductive adhesives. It has the advantages of simple process, high production efficiency, no need to replace molding equipment when producing tires with different pattern specifications, and is conducive to high-performance fuel-efficient tire production technology. Promoted in domestic tire companies.

Plastic Chairs

PP plastic, also known as polypropylene plastic, is another fine resin varieties, following the development of nylon, which is a semi-crystalline materials, the advantage is obvious, with excellent mechanical properties and heat resistance, with a high not hydrophilic sex, almost non-absorbent. The disadvantage is poor low temperature impact resistance, easier to aging. However, for comparison PE plastic having a higher melting point.

PE plastic is polyethylene plastic, its corrosion resistance and electrical insulation are very strong. Rigid hardness and strength are relatively high, and the same PP plastic, it also very small water absorption.

Polycarbonate (referred PC) is a polymer molecular chain containing a carbonate group, an ester group according to the structure can be divided into aliphatic, aromatic, aliphatic - aromatic and other types. Which due to the aliphatic and aliphatic - aromatic polycarbonate lower mechanical properties, thereby limiting its application in engineering terms. Currently, only the aromatic polycarbonate obtained industrial production. Due to the special nature of the polycarbonate structure, it has now become the top five fastest growing engineering plastics in general engineering plastics.

Three chairs made of plastic material and they have the same advantage.

Stackable Plastic Chairs, Plastic Leisure Chair, White Plastic Chair, Plastic Dining Chairs

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