Illustration
New China had been founded for 60 years , along with the economic development of various trades, as the paint industry for supporting very compelling from a small industry gradually developed into an important economic sector in all areas. After several generations of hard work, pioneering spirit, China has become the world's second largest paint producer and consumer countries, into the mainstream of the world paint industry.
With the development of technology to strengthen environmental regulations and environmental awareness, it was discovered that paint production and construction processes of waste water, air and water pollution will. As an environmentally friendly water-based paint coatings, the development of more and more attention, applications are constantly expanding. In recent years, urban infrastructure construction and the rapid development of housing construction, underground construction (such as subways, tunnels, etc.), water-proof paint is in great demand, especially acrylic polymer emulsion waterproofing coating of increased sales, particularly in the national adopted national building materials industry standards - "polymer cement waterproof coating" after the implementation of more conducive to the promotion of the product. I believe that with continuous development of styrene-acrylic emulsion and performance improvements, the product will be more favored by the market, its prospects will be even brighter.
Styrene-acrylic emulsion (styrene - acrylic emulsion) is a styrene monomer and acrylic acid ester copolymer emulsion derived by. Emulsion polymerization of styrene-acrylic emulsion is more of the system, but also has important industrial applications in today's world the value of the ten non-crosslinked emulsion one. Styrene-acrylic emulsion as an important class of intermediate chemical products, has a very wide range of uses, are mainly used for architectural coatings, latex coatings of metal surfaces, surface coatings, paper, adhesives, adhesive, etc. By styrene and styrene-acrylic emulsion acrylate monomer by emulsion copolymer derived. Milky white liquid, with Blu-ray. 40 to 45% solids content, viscosity 80 ~ 1500mPa • s, monomer residues 0.5%, pH value of 8 to 9. Styrene-acrylic emulsion adhesion, film transparency, water, oil, heat resistance, good aging properties.
This design introduces styrene-acrylic polymer cement waterproof coating emulsion plant process design, according to the requirements to determine the production of the emulsion formulation, a comparative analysis of the emulsion formulations emulsifier, initiator and buffer, etc. in their production the role and impact of the final product use, and to determine the type and amount, explores the best type of emulsion polymerization method, a clear emulsion production process, production equipment to provide the emulsion, and with a detailed flow chart . Production of major equipment involved in the pre-emulsion tank, reactor, heat exchanger, high tank, filter, vacuum pumps, metering pumps, etc., according to the actual production conditions, to provide a selected device and the corresponding manufacturers. Among them, the selection and the reactor tube heat exchanger design is the key. The design of the reactor's design refinement, include a material, kettle lid, stir, jacket, seal and other options. Realization process in accordance with the conditions, safe, reliable, economical and convenient operation principle, to determine the heat flow, flow, body heat, heat the final temperature, and estimates based on the heat transfer area of heat exchanger technology determine the size of the structure, complete tube heat exchanger design. With the actual choice of production technology programs and products, also carried out on the material and heat balance calculations.
The design was assigned according to the design task , the successful completion of the styrene-acrylic emulsion plant process design. Throughout the design process, production of styrene-acrylic emulsion I have a comprehensive understanding of the process. Based on learned expertise, combined with his experience in the cognitive training, flexible application, for the future related to production management in the work to lay a certain foundation.
The design consists of Zhang Yingqiang instructor, I am the knowledge potential of thin, design errors and omissions in the hope that teachers will correct me.
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