1、有機硅及其在汽車美容護理中的應用According to the forecast a German car market research agency R.L.Polk Marketing Systems2013 said that despite the current global environmental protection has become a hot topic, but in the next 7 years, the global car ownership will continue to grow to nearly 20. in 2015, the global

2、 car ownership in 2007 from nearly 920 million to 1 billion 120 million units. By then, Asia will have 1/4 of the world's cars, or 280 million vehicles. Among them, China and India's market growth potential is enormous. According to data provided by the Ministry of public security, as of the

3、 end of 2013, China's auto ownership amounted to 137 million vehicles, 5.7 times as many as in 2003. The ministry predicts that by 2020, China's car ownership will exceed two hundred million vehicles. Our country has entered the automobile society quickly. The rapid growth of car consumption

4、 is also for automotive beauty care Yao Yongli, Luo Gang win special chemical Shanghai Co., Ltd. - home care department, Shanghai 208 applications. On the surface of the vehicle polishing agent, automobile tire, rinse aid cleaning and maintenance, automotive interior cleaning care, window glass anti

5、 fog, organosilicon compounds displayed excellent performance, plays an important role.Silicone and its application in the automotive beauty care industry has brought great business opportunities, and promoted the rapid development of the industry.At present, the more well-known car beauty products

6、manufacturers are 3M, Dr. turtle, Nelson and so on.Car care help is not just a simple car wax, in addition to stains, deodorant and other cleaning and maintenance care, including professional beauty products and high-tech equipment, using advanced technological method and special, new care and maint

7、enance on the car, in order to achieve the new change, new car value, performance gain effect of prolonging life, has is widely used in automotive cleaning, polishing, car care, tire maintenance and other products, play a decisive role.China detergent industry magazine "industrial and public fa

8、cilities clean" 1. organosilicon compounds is a combination of many silicone polymer compound containing silicon element, generally refers to the siloxane backbone for the polyorganosiloxane, including silicone oil, silicone rubber and silicone resin, silane coupling agent four categories. Its

9、basic structural unit, the main chain, is Si - O - bond, and at least one of the silicon atoms is directly linked to other carbon atoms of organic groups. Therefore, in the structure of silicone polymer containing both organic and inorganic groups, containing the structure, characteristics and miner

10、al composition and molecular structure of this particular set of organic compounds to make it function in a body, is the first in the industry applications although 25 element polymer crust consisting of silicon dioxide, but in in nature, there is no silicone compound. Until 1940, Mu.Rochow invented

11、 the synthetic route of direct synthesis of methylchlorosilanes, laid the foundation for the synthesis of siloxane compounds. Until 1860, a silicone compound party known 3 4., at present, the world's leading manufacturer of silicone, Corelle, Youdao, LAN-STAR, Momentive Wacker ShinEtsu, its prod

12、uction capacity accounted for about 80 of the world's total production capacity. The organic silicon industry in China started in the early 1950s. At present, China's Silicone Market development is the fastest in the world, the annual growth rate as high as 302.Application of organosilicon c

13、ompounds in car care in 2.1 car surface polish cars, cars, trucks and other outdoor assembly in driving, placed or open transport, regardless of whether the painting need dealing with the protection of the environment is to prevent erosion, such as salt fog, acid rain, industrial dust, animal excret

14、a. Especially from falling bird droppings, insect footprints, wind erosion, railway cargo of iron on the surface of the vehicle damage is relatively large. In addition, the local pollution of the car is caused by exhaust, and the stain is mainly composed of hydrocarbons and carbides. In order to pro

15、tect the body surface clean and gloss, wax polishing is often used. Waxing, polishing, wax content, labor intensity, slow polishing, poor gloss. From the safety and effect of use, development of neutral cleaning, polishing, and can protect the products will be favored in 1950s, replacing the polysil

16、oxane emulsion paste wax as the car polish into the market, the emulsion contains tar removal agent. The polishing agent has the advantages of convenient use, labor saving, easy removal, flat and easy dispersing, and no wax and abrasive components, and can not be deteriorated because of wear and oxi

17、dation. It can be installed in small sprayer, ordinary users can be sprayed to the automobile paint, then dry cloth, can get a high gloss, a thin protective layer, alkyl amino modified polysiloxane, alkyl modified polysiloxane, silicone emulsion, silicon resin, ring methyl silicone oil can be used a

18、s polishing agent composition.2.1.1 poly two methyl siloxane two poly methyl siloxane is a linear, non reactive silicone oil of varying viscosity. Except for oxygen atoms, only methyl and silicon atoms are connected. The characteristics of silicone and silicon atoms in the structure itself is inert,

19、 decided the polysiloxane has many unique properties: physical and chemical properties of inert, low toxicity, good thermal stability, good oxidation resistance and anti UV properties, high surface activity, very low surface tension of 18 22mN/m, lubrication, good under low temperature, no crystalli

20、zation, water repellent and oil etc.In home care, automotive care and other products, silicone oil is usually used as a waterproof agent, polishing agent composition. Viscosity of 50 to 500mPas low viscosity silicone oil, usually with viscosity of 1000 100000mPas high viscosity silicone oil with the

21、 use of.Because of the high viscosity silicone oil can give good surface brightness, but poor spreadability, and low viscosity silicone oil has good spreadability, but less evenly spread on the membrane, leaving streaks, and can give good surface gloss. Zhao Jianhong will use different viscosity sil

22、icone oil for cleaning and polishing wax in the car. It is equipped with a product that does not contain abrasives, easy to apply, easy to wipe and easy to use.The product not only gives the car a good light on the surface, but also makes the body have good dustproof, water resistance, and protect t

23、he body paint.2.1.2 amino modified siloxane amino modified siloxane has been widely used in automobile polishes. The amino group has strong polarity, so that the amino modified siloxane can interact with the surface hydroxyl groups and carboxyl groups of the material, and the silicone oil can be fir

24、mly adsorbed on the surface of the material to form a layer of film attached to the surface. Reactive amino modified siloxane can undergo self crosslinking,Or react with the raw material in the coating, cross cured 11, forming a cross-linked film on the surface. It has the same properties as poly tw

25、o methyl siloxane, but it can improve the durability and washability of the polishing agent when it occurs cross-linking. Amino modified silicone also has different viscosities. Different viscosity products can be chosen according to the different applications. Amino modified siloxane can be compoun

26、ded with other silicone oil and silicone resin to achieve satisfactory results. Amino modified silicone can also and fatty acid compound, commonly used such as stearic acid, lauric acid, amino and fatty acids can also occur Chinese these detergent industry magazine "industrial and public facili

27、ties clean" crosslinking, in order to improve the durability of glazing film corrosion resistance.2.1.3 alkyl modified siloxane alkyl modified silicone has become a silica wax, and compared with traditional solid wax, it has lower melting point and easier to use. A silicone wax good wettability

28、, easy to form a protective film on the surface of the vehicle, especially when it is used and a functionalized siloxane compound, can further improve the car surface brightness, washing resistance and weather resistance. With the increase of the long alkyl chain, will make two methyl silicone oil h

29、eat resistance and cold resistance decrease, but to increase the organic characteristics, such as lubrication and finishing, and the compatibility with organic fat, more suitable as a polishing material. The chain length and content of alkyl substituted silicon can effectively control the melting po

30、int of wax polishing quality and meet the needs of different levels of demand 2.1.4 silicone silicone emulsifier emulsifier is a special surfactant, it is used for the preparation of W/O type polishing agent. This lipophilic substance can make very stable, shear thickening emulsions. In addition, th

31、e emulsifier itself is thixotropic and easy to use. Because of the lubricity of the silicone itself, the emulsion is more uniformly cleaned and free of streaks. At the same time, siloxane emulsifier itself has good polishing properties. In Henning, this paper introduces a kind of alkyl polyether mod

32、ified polysiloxane emulsifier TEGOPREN 7008 and a self emulsifying amino modified silicone emulsifier TEGO Polish Additive ACS W/O, they are used for polishing wax, with emulsifying properties while still can significantly improve the brightness.2.1.5 silicone resin is a thermosetting silicone syste

33、m with a highly crosslinked structure, and siloxane films are of medium durability. When used in combination with poly two methyl siloxane, the durability and flatness of the polishing agent can be improved, and the characteristics of easy use, brightness and waterproof can be maintained. When used

34、in conjunction with amino modified polysiloxane, can also improve the durable waterproof performance, glazing products is an important part of the anti pollution and air permeability of 2.1.6 methyl silicone oil solvent is most polishes, it will influence the effect of the final product. Solvent in

35、the polish can dissolve the active ingredients, wetting the surface, so that the glazing in the surface evenly spread. Solvent evaporation rate, flammability, compatibility with other ingredients and packaging materials are all factors that must be taken into account when selecting solvents. The rat

36、e of evaporation of the solvent either too fast or too slowly can cause the glazing film to spread unevenly on the surface and form stripes. Solvents containing aromatic hydrocarbons are likely to damage the surface and are therefore not recommended for use in products.Methyl silicone oil is a volat

37、ile oil, can be used as the substitute of conventional solvent for car polish, and they have similar compared to conventional solvents, cleaning ability of car surface sediments, and spreadability and better lubrication. It also has excellent compatibility with silicone. Silicone oil with different

38、volatile speeds can be used to obtain different drying speeds of the polishing agent. Also, volatile silicone oils do not destroy the ozone layer and are therefore not classified as volatile organic compounds in the United states.These are some of the commonly used silicone compounds for automotive

39、polishes. In automotive polishes, two or more than two organosilicon compounds are commonly used in order to achieve optimum use. Jeffery has developed a wax free polishing emulsion. The emulsion with two polydimethylsiloxane, amino modified polysiloxane, and can China detergent industry magazine &q

40、uot;industrial and public facilities clean" the crosslinking reaction of reactive polysiloxane as polishing composition. The lotion just needs to be wiped onto the surface of the car to form a shiny film that can hold up for weeks. The emulsion can also be used for car glass, interior cleaning,

41、 polishing. M.A. and Schultz developed a liquid polishing agent for automotive surfaces. The product contains poly two methyl siloxane, amino functionalized silicone, silicone based wax and volatile silicone oil components, giving paint metal surface high gloss, durability, water resistance and so o

42、n. Donna, W., Klayder and so on, also introduced the use of silicone oil, amino modified silicone and silicone surfactant preparation gel body polish and care agent method.2.2 automotive rinse aid has been exploring a more efficient, economical, and faster way to remove surface water from freshly wa

43、shed cars since the advent of commercial car washing. At first, the surface water was dried with towels. With the acceleration of the mechanization process, direct drying of the hot air on the vehicle can remove most of the water. It has been found that if water turns into water droplets or drops, i

44、t can easily be blown away in hot air. The car is used in car wash rinse aid at the end of the cold Xishi, it can make the water droplets formed on the surface of the vehicle, with air drying, water easily removed, leaving no trace on the paint surface due to the car's surface negatively charged

45、 cationic silicone surfactant of through electrostatic adsorption, can form a thin film the hydrophobic layer on the surface of the vehicle. Water droplets in integrated hydrophobic film, in the hot air blowing can be easily slipped as shown in Figure 1, to speed up the drying speed, the surface of

46、the vehicle at the same time, because the silicone covered on the surface of the vehicle, improve the brightness of the surface of the vehicle. Henning also introduces a kind of cationic water-soluble modified silicone TEGOPREN 6922, used as a clean auxiliary agent and additive in the car cleaning a

47、gent, the surface of the car has a similar effect with wax, rain or other factors wet the surface of the car will be formed after the dispersion was developed for Polish automobile rinsing stage. The Polish also contains cationic modified silicone surfactant. By electrostatic adsorption, the siloxan

48、e can form a bright hydrophobic protective film on the surface of the automobile. After rinsing, it is dried by hot air. It needs no cleaning and saves time and effort.The polishing agent also contains amino modified siloxane, which further improves the brightness and durability of the body surface.

49、2.3 tire tire nursing care agent agent is mainly used to prevent tire aging, cracking and fading, appears to have been cracked and start aging tires, can greatly retard the tire further cracking and aging, and can make the tire generated on the surface protective film, a layer of shiny black fast an

50、d waterproof, not easy to be washed out together two methyl siloxane and amino modified silicone can be used for tire care agent. They cover the surface of the tire and prevent the surface of the tire from being attacked by ozone and other chemicals in the environment, causing the rupture of the pol

51、ymer chemical bonds and prolonging the service life of the tires. O with low viscosity silicone oil for rubber, plastic surface treatment, high viscosity silicone oil covered on the rubber surface, to protect the surface and increase the brightness effect, low viscosity silicone oil is rapidly penetrate into the pores in the polymer, play a protective role. In addition, polyether modified silicone surfactants can improve wetting and spreadi