Plasticizers are widely used in various industries such as plastic products, rubber, plastic films, degradable plastics, polymer materials, chemical materials, automotive manufacturing, electronic appliances, nanomaterials, aviation, aerospace, food hygiene, coatings and adhesives, textile printing and dyeing, papermaking, ink, cleaning agents, cosmetics, leather, cleaning agents, etc.
Concrete application
The higher the water content of general concrete, the better its fluidity and workability. But when the concrete has sufficient moisture, the strength and moisture content of the concrete after solidification are exactly inversely proportional. Therefore, if concrete is to have high strength, the water content of the concrete should not be too high, and the workability of the concrete will deteriorate. Plasticizers can reduce its water content (hence called water reducing agents) without affecting its workability, while also improving the strength of the concrete. When producing high-strength concrete or fiber reinforced concrete, this method is commonly used to enhance strength.
Application of gypsum drywall
The plasticizer used in gypsum drywall, also known as dispersant, can increase the workability of gypsum before solidification. In order to reduce the energy required to dry the dry wall, less water is added during production, which results in poor processability. Adding plasticizers can improve its processability. But if an excessive amount of plasticizer is added, there will be a retarding effect and the strength of the gypsum dry wall will also deteriorate.
Application of energetic materials
Energetic materials and pyrotechnic agents generally use plasticizers, which can improve the physical properties of the propellant itself or its binder, and can also be used as auxiliary fuel to enhance the propulsion force (i.e. specific impulse) provided by a unit mass of fuel. Plasticizers are particularly needed in solid rocket propellants and smokeless propellants to improve physical properties or increase specific impulse. Plasticizers that can increase specific impulse are generally referred to as energetic plasticizers. Its advantage is that it can reduce the mass of the propellant, increase the rocket load, or increase its maximum speed.
Food packaging
Polylactic acid (PLA) has its unique advantages as a food packaging material, as it can completely replace traditional packaging materials. Moreover, its unique environmental friendliness makes it an important player in the future development of packaging materials. PLA materials have a smooth surface and high transparency, so they can compete with polystyrene and polyethylene terephthalate (PET) in food packaging applications. PLA has been applied to hard packaging of fruits and vegetables, eggs, cooked food, and baked goods. PLA film is being used for packaging products such as sandwiches, biscuits, and flowers. There are also applications of blowing PLA into bottles for packaging water, soup, food, and edible oils.
One type of plastic wrap commonly used in daily life is PE (polyethylene) material without additives, which has poor adhesion; Another type is PVC (polyvinyl chloride) cling film, which contains a large amount of plasticizers to make PVC (polyvinyl chloride) material soft and increase viscosity, suitable for packaging fresh food, and therefore more widely used. Another product containing plasticizers is children's toys made of PVC, and the European Union has specified that the content of plasticizers in plastic toys must be below 0.1%.
The Use Of Plasticizers
Aug 13, 2023
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