Reduction Of Nano Silver Antibacterial Finishing Agent With Spherical Polymer Brush

P > Description: the project has designed a "a href=" http:// "www.91se91.com/news/index_c.asp" > spherical polymer brush > /a > reduction nano silver antiseptic finishing agent and its preparation method. The spherical latex particles were prepared by emulsion polymerization to prepare nano polystyrene microspheres. The polystyrene microsphere was used as core to further initiate the formation of the pition layer of styrene sulfonic acid. The photoinitiator was strongly adhered to the polystyrene sulfonic acid layer by hydrogen bonding. The existence of hydrogen bonding made the size of the colloidal particles controllable with temperature, and then added polyacrylic two alcohol ester of methacrylic acid to polymerize the shell by ultraviolet radiation. The shell of the brush could be used to restore the silver nanoparticles, and the diameter of silver nanoparticles was narrow, only 710nm. <

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< p > cooperation mode: < a href= "http:// www.91se91.com/news/index_c.asp" > technology pfer < /a > /p >

< p > unit name: < a href= "http://? www.91se91.com/news/index_c.asp" > Quanzhou < /a > Hong Ruixing Textile Co., Ltd. < /p >

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< p > the low utilization rate of domestic carbon fiber production line is not due to the lack of downstream market demand, but because it is difficult to produce qualified products.

Carbon fiber production process is complex, from polymerization, spinning, oxidation, carbonization, surface treatment, any production link problems, may affect the performance of carbon fiber.

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< p > "domestic raw silk has high impurity content, poor quality stability, large coefficient of variation, and no good raw materials, and how to produce good products". Although China's carbon fiber production capacity has expanded rapidly in recent years, most of the products are relatively low quality products, and the gap is obvious compared with that of foreign countries. Therefore, the expansion of this capacity also aggravates the structural surplus of carbon fiber to a certain extent.

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< p > in addition, the current industrial development mode also hinders the application of domestic carbon fiber.

Foreign carbon fiber manufacturers have established extensive cooperative development and stable supply and demand relationship with manufacturers of important applications such as automobile, aerospace and other carbon fibers, and established a complete carbon fiber industry chain.

China's carbon fiber industry is disconnected from scientific research, production and application.

"Often after products are developed, they do not know what they can be applied to, and how they will be used.

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< p > from the application field, China's carbon fiber also needs to break through in its industrial application.

Taking acrylonitrile based carbon fibers, which account for more than 90% of carbon fiber production, for example, the proportion of industrial applications and sports leisure is 75.7% and 24.3% in the world, while in China, the proportion is 20% and 80% respectively.

In 2013, China imported 5931.6 tons of carbon fiber and its products for sports and leisure, accounting for 47.89%.

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< p > because of the particularity of the application field of carbon fiber reinforced plastics, the foreign countries have monopolized the blockade of high performance carbon fiber technology and high-end process equipment, dumping low-end carbon fiber products to China, adding to the small and scattered state of China's carbon fiber enterprises, the quality is not stable, and the production cost is higher than that of imported similar products, and the whole industry is in a state of loss.

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