additives

To improve one of the properties of a polymer, usually a polymer will be mixed with a material called additives. The function of these additives is to modify or improve certain properties in accordance with the wishes of the users, such as strength, color, water resistance, heat resistance, electrical resistance and others. Fillers are one of the additive to improve strength, hardness, abrasion resistance, dimensional stability. Plastisizers is additive to menambahn flexibility and lowers the level of soft polymers with glass transition temperaturenya. Molukuler Weight Additive has a low-power high interference. Secondary bond strength is reduced so as to make soft and flexible polymer. Commonly used in PVC, thin sheets, films, cylinders. Most polymers are affected by ultraviolet light (sunlight) and oxygen where it will weaken the influence of the main bonding polymers. Additive used is Carbon Black (soot). These additives absorb a high percentage of ultraviolet radiation. The trick is to add antioxidant polymers. The amount of color variation is needed in the plastic additives required Colorant (dye). This material is organic (Dyes) and inorganic (pigments). Selection of colorant depends on temperature and light in which the pigments dispersed in the polymer. Another additive is heat resistant to the flame retardants. These additives reduce the Flammability of these polymers. When the high temperature most polymers start to burn, burning Traffic depends on the composition of each polymer. Examples of these additives is Compound Chlorine, bromine and Phosphorus. Lubricants can be added to polymers to reduce friction during the manufacturing process. Other uses is to avoid the product sticking to the mold. Can also be a deterrent to the mutual attachment of polymers such as polymer-polymer thin film layer. (bid / multiple sources)