Independent component supply system is very important
Tert-Butyl peroxybenzoate (TBPB) a chemical compound from the group of peresters. It is often used as a radical initiator in polymerization reactions, such as the production of LDPE from ethylene, and for crosslinking, such as for unsaturated polyester resins.
TBPB is a low volatility ,high purity,liquid, aromatic peroxuester.it is effective as medium of a broad spectrum of monomers e.g .styrene.ethylenn,acrylics.it is also used to cure (copolymerzation) unsaturated resins .
TBPB is a clear light yellow liquid, which is little soluble in water but well in many organic solvents such as ethanol or phthalate.
As peroxo compound, TBPB contains about 8.16 wt% of active oxygen and has a self accelerating decomposition temperature (SADT) of about 60 °C. The SADT is the lowest temperature at which self-accelerating decomposition in the transport packaging can occur within a week, and which should not be exceeded while storage or transportation.[2] TBPB should therefore be stored between minimum 10 °C (below solidification) and maximum 50 °C. Dilution with a high-boiling solvent increases the SADT. The half-life of TBPB, in which 50% of the peroxy ester is decomposed, is 10 hours at 104 °C, one hour at 124 °C and one minute at 165 °C. Amines, metal ions, strong acids and bases, as well as strong reducing and oxidizing agents accelerate the decomposition of TBPB even in low concentrations.[ However, TBPB is one of the safest peresters or organic peroxides in handling. The main decomposition products of tert-butyl peroxybenzoate are carbon dioxide, acetone, methane, tert-butanol, benzoic acid and benzene.
Initiator Tbpb,Tert-Butyl Peroxybenzoate Formula,Tert-Butyl Peroxybenzoate Activation,Tert Butyl Peroxybenzoate Formula Jiangxi Zhewei Material Technology Co.,Ltd , https://www.jxzwchem.com
According to the 2012 China Automotive Performance, Operations and Design Research Report recently published by JDPower Asia Pacific, China’s own brands significantly reduced the gap with international brands in terms of car glamour index, especially in driving performance and engines. The progress of the transmission system deserves attention. According to the car owner's rating, the Automobile Charisma Index evaluates the car owner's satisfaction with vehicle performance and design during the 2-6 months of the car ownership period.
According to JDPower's report, the average score of the self-owned brand auto glamour index was 781 points, a record high. After the release of the report, there was a media commentary: The multi-faceted localization of international component giants has promoted the improvement of the quality of self-owned brands.
Wei Jianjun, chairman of Great Wall Motor Co., once said: “The power system is the key to improving the quality of automobiles. We hope that BorgWarner will be able to apply the world’s most advanced power transmission technology to Great Wall Motors.†Now the main components of high-end products of its own brand, Most of them are provided by international component giants in Chinese companies.
It is reported that BorgWarner has cooperated with 12 domestic automakers to launch the key module, control module and clutch module of the DCT dual clutch automatic transmission, and developed DCT products with cutting-edge technology specifically for Chinese automobile enterprises. There are foreign reports that Johnson Controls plans to further expand its production capacity in China in the next five years and establish a 10-seat car seat production plant. At present, Johnson Controls owns 56 factories in China, including wholly-owned and joint venture factories, and generates $5 billion in operating revenue each year. Its CEO Rolle believes that currently 45% of seats in the Chinese market are provided by Johnson Controls.
Like the entire vehicle production, the scale of China's auto parts industry is also among the highest in the world. It has more than 20,000 companies and nearly 2 million employees. In 2011, its sales reached nearly 2 trillion yuan. However, auto parts companies with a background in foreign investment accounted for more than 75% of the market share, and controlled most of the market share of core components. According to the statistics of the Ministry of Commerce in 2010, the proportion of foreign-funded enterprises in the production of automotive electronic fuel injection systems, engine management systems, ABS, micromotors, and airbags was 100%, 100%, 91%, 97%, and 69 respectively. %. In recent years, the number of newly approved foreign-funded auto parts companies is higher than that of joint ventures.
The level and quality of automobile manufacturing depends on the level of equipment. The international competitiveness of a country's auto industry depends on the advanced nature of equipment and manufacturing costs. The majority of China's auto production equipment relies on imports, such as stamping automation equipment, advanced welding equipment, coating technology, equipment and materials, and robots. At present, the dependence of domestic vehicle manufacturing on foreign manufacturing equipment is as high as 70%, and the dependence of spare parts manufacturing on foreign equipment is as high as 90%.
We often say that the automotive industry has a strong driving role, referring to the upstream industry (including parts, raw materials, equipment) and downstream industries (car sales, after-sales service, automotive applications, transportation facilities, refined oil supply, auto finance, etc.) Pulling. We hope to master this long and thick industrial chain through the development of independent brands, but without the support of spare parts, the self-owned brand cars will become trains that do not have carriages, or they will pull people's cars.
Due to various reasons, China's independent parts and components companies have not grown stronger and bigger with the development of the entire vehicle, and they have not been able to support the independent innovation of the entire vehicle industry. China’s automobile industry policy should shift from vehicle priorities to zero-over- all and overall development. From focusing on breakthroughs in key components and key technologies to the construction of industrial supply chains and technological innovation chains, the component industry will become bigger and stronger. International Competitiveness.